KTM Motorcycle 990s User Manual

BEDIENUNGSANLEITUNG2005  
990 SUPER DUKE  
OWNER’S MANUAL  
MANUALE D’USO  
MANUEL D’UTILISATION  
MANUAL DE INSTRUCCIONES  
ART. NR. 3.211.57  
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INTRODUCTION »  
We would like to congratulate you on your purchase of a KTM motorcycle.  
You are now the owner of a state-of-the-art sport motorcycle that guarantees to bring you lots of fun and  
enjoyment, provided that you clean and maintain it appropriately. Before you go for your first ride, be sure  
to read this manual carefully and thoroughly in order to familiarize yourself with how to operate your new  
motorcycle and with its characteristics, even if this means that you will have to dedicate some of your  
valuable time to this task. Only by doing so will you learn how to tune your motorcycle to your specific  
needs and how to protect yourself against injury. Besides, this manual contains important information on  
motorcycle maintenance. At the time this manual was typeset, it was up-to-date with the latest state of  
this production series. It cannot be completely ruled out, however, that minor discrepancies may exist  
resulting from further design upgrades of these motorcycles.This manual is an important part of your motor-  
cycle and should be passed on to any subsequent owner in case you decide to sell it.  
We expressly point out that work marked with an asterisk in the chapter "Maintenance work on the chas-  
sis and engine" must be performed. If maintenance work should become necessary during a competition  
it should be performed by a trained mechanic. KTM strongly recommends that all service work to your  
KTM should be performed by a qualified KTM dealer.  
For your own safety, use KTM-approved parts and accessories only. KTM is not liable for damage that  
arises in connection with the use of other products.  
2
Take special care to follow the recommended run in, inspection, and maintenance intervals. Heeding  
these guidelines will significantly increase the life of your motorcycle. To ensure that all work to your KTM  
is performed properly and to avoid warranty conflicts, KTM recommends that you always have your KTM  
serviced by a recognized and qualified KTM dealer.  
Motorcycle driving is a wonderful sport and we hope that you will be able to enjoy it to the full. It may,  
however, involve potential problems for the environment or lead to conflicts with others. These problems  
or conflicts can be avoided if the motorcycle is used responsibly. To safeguard the future of motorcycle  
sports, make sure that you use the motorcycle in accordance with the law, show that you are environmen-  
tally conscious and respect the rights of others.  
We wish you a lot of fun when driving !  
KTM-SPORTMOTORCYCLE AG  
5230 MATTIGHOFEN, AUSTRIA  
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IMPORTANT LIMITED WARRANTY AND LIMITED GUARANTEE INFORMATION »  
The 990 Super Duke is designed and constructed for normal use on public roads but not for use on race  
courses or offroad terrain.  
The service, care and operating instructions for the engine and chassis specified in the owner's manual  
must be observed to ensure that the bike runs smoothly and to avoid premature wear.  
The service work described in the "Lubrication and maintenance chart" must be carried out by an author-  
ized KTM workshop and confirmed in the service manual, otherwise your warranty will become void.  
The fuels and lubricants specified in the owner's manual or those of an equal quality must be used in  
accordance with the maintenance schedule.  
The warranty or guarantee shall become void for damage and consequential damage caused by manipu-  
lations or conversions to the motorcycle.  
The use of the motorcycle under extreme conditions, e.g. on the race course, can cause above average  
wear to components such as the brakes. In this case it may become necessary to service or replace wear  
parts before the service limit specified in the maintenance schedule has been reached.  
3
In accordance with the international quality management ISO 9001 standard, KTM uses  
quality assurance processes that lead to the highest possible product quality.  
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INDEX »  
Page  
Page  
Checking the chain tension . . . . . . . . . . . . . . . . . . .24  
Correcting the chain tension . . . . . . . . . . . . . . . . . .24  
Chain maintenance . . . . . . . . . . . . . . . . . . . . . . . . .25  
Checking the chain for wear . . . . . . . . . . . . . . . . . . .25  
General information on KTM disk brakes . . . . . . . . .26  
Adjusting the basic position of the hand brake lever . .27  
Checking the front brake fluid level . . . . . . . . . . . . .27  
Refilling front brake fluid . . . . . . . . . . . . . . . . . . . .27  
Checking the front brake pads . . . . . . . . . . . . . . . . .27  
Changing the basic position of the foot brake lever . . .28  
Checking the rear brake fluid level . . . . . . . . . . . . . .28  
Refilling rear brake fluid . . . . . . . . . . . . . . . . . . . . .28  
Checking the rear brake pads . . . . . . . . . . . . . . . . . .28  
Dismounting and remounting the front wheel . . . . . .29  
Dismounting and remounting the rear wheel . . . . . . .30  
Tires, air pressure . . . . . . . . . . . . . . . . . . . . . . . . . .31  
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31  
Removing and remounting the battery . . . . . . . . . . .32  
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . .32  
Jump start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
Main fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33  
Fuses for individual power consumers . . . . . . . . . . .33  
Replacing the headlight lamp . . . . . . . . . . . . . . . . .34  
Adjusting the headlight range . . . . . . . . . . . . . . . . . .34  
Replacing the brake light and taillight bulbs . . . . . . .35  
Replacing the flasher bulbs . . . . . . . . . . . . . . . . . . .35  
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . .36  
Checking the cooling liquid level in the  
SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . .5  
Chassis number, Type label . . . . . . . . . . . . . . . . . . . .5  
Engine number, engine type . . . . . . . . . . . . . . . . . . . .5  
OPERATION INSTRUMENTS . . . . . . . . . . . . . . . . . . . . .5  
Clutch lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Hand brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Multi-functional digital speedometer . . . . . . . . . . . . .6  
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6  
Setting options in the display . . . . . . . . . . . . . . . . . . .7  
Cooling liquid temperature display . . . . . . . . . . . . . . .8  
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Combination switch . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Emergency OFF tip switch, light switch, starter tip switch .9  
Filler cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Seat lock, removing the seat . . . . . . . . . . . . . . . . . .10  
Baggage loops . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Tool set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Helmet lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Holding strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Side stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Foot brake pedal . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Footrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
Compression damping of fork . . . . . . . . . . . . . . . . .12  
Rebound damping of fork . . . . . . . . . . . . . . . . . . . . .12  
Spring preload of the fork . . . . . . . . . . . . . . . . . . . . .12  
Damping action during compression of shock absorber .13  
Rebound damping of shock absorber . . . . . . . . . . . . .13  
Spring preload on shock absorber . . . . . . . . . . . . . .13  
4
compensating tank . . . . . . . . . . . . . . . . . . . . . . . . .36  
Checking the cooling liquid level in the radiator . . . .37  
Bleeding the cooling system . . . . . . . . . . . . . . . . . .37  
Changing the basic position of the clutch lever . . . . .38  
Checking the oil level of the hydraulic clutch . . . . . . .38  
Adjusting the handlebar tilt . . . . . . . . . . . . . . . . . . .38  
Checking and adjusting the throttle cable play . . . . . .38  
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39  
Checking the engine oil level . . . . . . . . . . . . . . . . . .39  
Refilling engine oil . . . . . . . . . . . . . . . . . . . . . . . . .39  
Changing the engine oil and the oil filter, cleaning  
GENERAL TIPS AND WARNINGS FOR STARTING THE  
MOTORCYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14  
Instructions for initial operation . . . . . . . . . . . . . . . .14  
Running in the LC8 engine . . . . . . . . . . . . . . . . . . . .14  
Accessories and payload . . . . . . . . . . . . . . . . . . . . .14  
DRIVING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . .15  
Check the following before each start . . . . . . . . . . . .15  
Starting the engine . . . . . . . . . . . . . . . . . . . . . . . . .16  
Starting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Shifting/Riding . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Stopping and parking . . . . . . . . . . . . . . . . . . . . . . . .18  
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18  
the oil screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40  
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . .42  
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
CONSERVATION FOR WINTER OPERATION . . . . . . . . . .45  
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
STARTING UP AFTER IMMOBILIZATION . . . . . . . . . .45  
PERIODIC MAINTENANCE . . . . . . . . . . . . . . . . . . . . . .20  
MAINTENANCE WORK ON CHASSIS AND ENGINE . . . .22  
Adjusting the fork and shock absorber . . . . . . . . . . .22  
Adjusting compression damping of fork . . . . . . . . . . .22  
Adjusting rebound damping of fork . . . . . . . . . . . . . .22  
Adjusting the spring preload on the fork . . . . . . . . . .23  
Compression damping of shock absorber . . . . . . . . . .23  
Rebound damping of shock absorber . . . . . . . . . . . . .24  
TECHNICAL SPECIFICATIONS – CHASSIS . . . . . . . . . .46  
TECHNICAL DATA - CHASSIS . . . . . . . . . . . . . . . . . . . .47  
TECHNICAL SPECIFICATIONS – ENGINE . . . . . . . . . . .48  
HEAD WORD INDEX . . . . . . . . . . . . . . . . . . . . . . . . . .49  
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SERIAL NUMBER LOCATIONS »  
Chassis number, Type label  
The chassis number is stamped on the right side of the steering head tube.  
Enter this number in the field on page no 1.  
The type label is located on the right frame tube under the seat.  
Engine number, engine type  
The engine number and the engine type are stamped into the left side of the  
engine below the engine sprocket. Enter this number on page 1.  
5
OPERATION INSTRUMENTS »  
Clutch lever  
The clutch lever [1] is fitted on the left hand side of the handle bar.  
The adjusting screw [A] is used to change the original position of the clutch  
lever (see maintenance work on chassis and engine).  
A
The clutch is hydraulically actuated and adjusts itself automatically.  
1
Hand brake lever  
The hand brake lever [2] is mounted on the handlebar on the right and actu-  
ates the front wheel brake.The adjusting screw [B] is used to change the orig-  
inal position of the hand brake lever (see maintenance work on chassis and  
engine).  
B
2
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OPERATION INSTRUMENTS »  
Multi-functional digital speedometer  
The universal instrument is divided into 3 parts.  
1
2
3
Use the MODE and SET [1] button to change the display and the basic set-  
tings in the display.  
Display [2] shows all of the information that may be of interest to you. 5 dis-  
play modes can be selected with the MODE button.  
The indicator lamps [3] provide additional information on the motorcycle's  
running condition.  
Display  
TEST  
When you switch on the ignition, all of the display elements will light up for  
1 second for the function test.  
TEST  
WS  
WS (wheel size)  
The display will change and show the diameter of the front wheel in inches  
for 1 second (WS = wheel size).  
Then the CLOCK mode will be displayed, or the mode that was active when  
the ignition was switched off.  
6
CLOCK  
You will recognize the CLOCK display by the blinking dots between the hours  
and minutes. It displays the speed, temperature of the cooling liquid and the  
clock.  
CLOCK  
ODO  
To switch to the next display mode, press the MODE button.  
ODO  
The speed, temperature of the cooling liquid and the total kilometers or miles  
traveled are shown in the ODO mode.  
To switch to the next display mode, press the MODE button.  
TRIP 1  
The TRIP 1 mode shows the speed, the temperature of the cooling liquid and  
the trip odometer 1.  
TRIP 1  
TRIP 2  
TRIP F  
To switch to the next display mode, press the MODE button.  
TRIP 2  
The TRIP 2 mode shows the speed, the temperature of the cooling liquid and  
the trip odometer 2.  
To switch to the next display mode, press the MODE button.  
TRIP F  
The TRIP F (fuel) mode shows the speed, the temperature of the cooling liq-  
uid and the distance traveled since reaching the low-fuel mark (the low-fuel  
indicator lamp will blink).  
To return to the UHR mode, press the MODE button.  
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OPERATION INSTRUMENTS »  
Setting options in the display  
KILOMETERS OR MILES.  
1
10 sec  
You can have the speed and distance shown in kilometers or miles in the dis-  
play. The display can be adapted to the respective country on long-distance  
trips.  
To switch from kilometers to miles, switch on the ignition and press the MODE  
[1] button for approx. 10 seconds. The km/h display will switch to mph. The  
speed and the stored distances will be converted and displayed in miles.  
To return to kilometers, proceed as described above.  
CLOCK  
Switch on the ignition and change to the CLOCK mode.  
Simultaneously press MODE [1] and SET [2]. The numbers on the clock will  
start to blink. Use the MODE button to set the hours and the SET button to  
set the minutes.  
1
2
The press the MODE and SET buttons simultaneously.  
NOTE:  
0:00 will be displayed if the clock is not supplied with electricity. This can  
be caused by a defective fuse or a fault in the board electric system (see  
Troubleshooting).  
7
TRIP 1  
The trip meter 1 runs continuously and counts up to 999.9. It can be used  
to measure the length of a certain route on a trip or the distance between two  
refueling stops.  
To return the trip meter 1 to zero, switch on the ignition, change to the TRIP  
1 mode and press the SET button.  
2
RESETTING TRIP 2  
The trip meter 2 runs continuously and counts up to 999.9. It can be used  
similarly to TRIP 1 or together with a switch available as an accessory (see  
below) for trips according to a roadbook.  
To return the trip meter 2 to zero, switch on the ignition, change to the TRIP  
2 mode and press the SET button.  
2
TRIP F  
When the fuel level reaches the reserve mark, the display will automatically  
switch to TRIP F and begin to count (no matter which display mode was active  
before). At the same time, the fuel warning lamp will start to blink. You will  
still have enough reserve fuel for at least 30 kilometers.  
After refueling, it will take approx. 8 minutes for the fuel warning lamp to  
switch off and for TRIP F to automatically reset to 0 and return to the previ-  
ous display mode.  
NOTE:  
Press the SET key for 2 seconds to immediately turn off the fuel warning lamp.  
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OPERATION INSTRUMENTS »  
Cooling liquid temperature display  
The temperature display [1] is shown in 7 bars. The more bars that light up,  
the hotter the cooling liquid. When the lowest bar lights up, the cooling liq-  
uid has reached a temperature of approx. 40°C (104°F). When the upper bar  
lights up 120°C (248°F), all of the bars will start to blink and the red warn-  
ing lamp [2] will light up.  
120°C (248°F)  
110°C (230°F)  
100°C (212°F)  
70°C (158°F)  
60°C (140°F)  
50°C (122°F)  
40°C (104°F)  
1
POSSIBLE CAUSES FOR AN INCREASE IN TEMPERATURE, CAUSING THE RED  
WARNING LIGHT FOR THE COOLING LIQUID TEMPERATURE TO LIGHT UP (ALSO  
SEE PAGE 36):  
– DRIVING TOO SLOWLY AND DRIVING WITH A HEAVY LOAD AT HIGH AIR TEM-  
PERATURES  
– NOT ENOUGH COOLING LIQUID IN THE SYSTEM  
– THE VENTILATOR ON THE LEFT RADIATOR IS NOT RUNNING  
– IMPROPER USE OF THE CLUTCH WHEN DRIVING SLOWLY  
2
8
Indicator lamps  
The green indicator lamp will blink in the blinker rhythm when the  
blinker is switched on.  
NOTE:  
The indicator lamp will blink slower when a blinker is broken.  
The green indicator lamp will light up when the gearbox is in an  
idling position.  
The blue indicator lamp will light up when the high beams are  
switched on.  
The red warning light will light up when the cooling liquid has  
reached a temperature of approx. 120°C (248°F).  
The orange warning light will start to blink when the fuel level has  
reached the reserve mark. At the same time the display will auto-  
matically change to TRIP F (see TRIP F).  
The red warning lamp lights up when the ignition is switched on but  
the engine is not running. When the engine is started, the warning  
lamp will go out as soon as the oil pressure is high enough.  
The orange warning lamp (fuel injection) briefly lights up when the  
ignition is switched on. It will go out when the gasoline pressure is  
high enough.  
If this warning lamp lights up while driving, a component in the  
injection system is defective. The error can be identified by means  
of a blink code (see Maintenance work).  
Tachometer  
The tachometer [3] shows the engine speed in revolutions per minute. Do not  
run the engine beyond the black mark at 9500 rpm.  
3
The speed limiter will set in at 9600 rpm, drastically reducing the engine  
power above this rotational speed.  
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OPERATION INSTRUMENTS »  
Ignition lock  
The ignition lock has 3 switching positions.  
Ignition off, (engine can't be started)  
Ignition on, (engine can be started)  
Ignition off, handlebar blocked  
To switch the ignition to position  
turn the ignition key to position  
and firmly press it into the lock. Turn the handlebar all the way to  
the left, then turn the ignition key to the left.  
The ignition key can be withdrawn in position  
and  
.
Combination switch  
The rocker switch LIGHTS [1] actuates the high beam or low beam.  
2
= High-beam light  
= Low-beam light  
The light signal (high beam) is actuated with button [2].  
1
9
The indicator switch [3] returns to central position after actuation. Press  
flasher switch towards switch housing to switch off the flasher.  
The horn is sounded with button [4].  
1
3
4
Emergency OFF tip switch, light switch, starter tip switch  
The emergency off switch [5] is provided for emergency situations and should  
not be used to switch off the engine.  
The engine is ready for operation in position  
circuit are switched on).  
The engine cannot be started in position  
cuit are interrupted).  
5
(ignition circuit and starter  
(ignition circuit and starter cir-  
6
7
The light switch [6] has 3 positions:  
= Light off  
= Parking light on  
= Headlight on  
Use the starter tip switch [7] to operate the electric starter.  
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OPERATION INSTRUMENTS »  
Filler cap  
The filler cap [1] can be locked. It is equipped with a tank ventilation system.  
To open, insert the ignition key, turn 45° in a clockwise direction and tilt the  
filler cap back.  
1
After refueling, pull out the ignition key and press down on the filler cap until  
the lock engages.  
Seat lock, removing the seat  
The seat lock [2] can be locked with the ignition key.  
To remove the seat, insert the ignition key and turn 90° in a clockwise direc-  
tion. Lift the seat in the back while pressing near the holding strap and pull  
off towards the back.  
2
10  
To mount the seat, place it on the motorcycle and position the hooks [3] on  
the bottom of the seat behind the dollies [4] on the subframe. Press down on  
the seat near the holding strap while sliding it forwards. The two tabs [5] must  
hook onto the tank. Turn the ignition key in the seat lock 90° in a counter-  
clockwise direction and pull off. Check whether the seat is mounted correctly.  
3
5
4
Baggage loops  
6
4 loops [6] are mounted on the bottom of the seat to which small pieces of  
baggage can be fastened. Fold the loops towards the outside to make them  
accessible when the seat is mounted.  
BAGGAGE WEIGHT: MAX. 5 KG  
6
Tool set  
The tool set [7] is located in the storage compartment under the seat.  
7
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OPERATION INSTRUMENTS »  
Helmet lock  
The steel rope [1] in the tool bag can be used to secure a helmet.  
To secure, remove the seat, run the rope through the helmet, attach both ends  
to the hook [2] and mount the seat.  
2
THE HELMET LOCK IS PROVIDED TO SECURE THE HELMET TO THE MOTORCYCLE  
WHEN PARKED. DO NOT ATTACH THE HELMET OR OTHER OBJECTS TO THE STEEL  
ROPE WHILE DRIVING. YOU CAN EASILY LOSE CONTROL OF THE MOTORCYCLE.  
1
Holding strap  
The passenger should hold on to the holding strap [3] or the driver while  
riding.  
3
11  
Shift lever  
The shift lever is mounted on the left side of the engine. The position of the  
gears is shown in the illustration. Neutral, or the idle speed, is located between  
first and second gear.  
The basic position of the shift lever can be adjusted according to your seat-  
ing position (see Maintenance work).  
2,3,4,5,6  
N
1
Side stand  
Fold the side stand [4] forward to the stop with your foot and put the weight  
of the motorcycle on the stand. Make sure it is standing securely on a firm  
surface. The side stand is linked to the safety start system; follow the driving  
instructions.  
4
Foot brake pedal  
The foot brake pedal [5] is located in front of the right footrest. Its basic  
position can be adjusted to your seat position (see maintenance work).  
5
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OPERATION INSTRUMENTS »  
Footrests  
The passenger footrests [1] fold up.  
1
Compression damping of fork  
The fork's damping action during compression travel (compression damping)  
can be adjusted. This allows you adjust the damping behavior to match your  
driving style and the payload.  
2
The adjusting screws [2] are located on the fork leg axle passage.  
More information is provided in the chapter "Adjusting the fork and shock  
absorber.“  
12  
Rebound damping of fork  
The fork's damping action during rebound travel (rebound damping) can also  
be adjusted. This allows you adjust the damping behavior to match your driv-  
ing style and the payload.  
3
The adjusting screws [3] are located on the upper end of the fork legs.  
More information is provided in the chapter "Adjusting the fork and shock  
absorber.“  
Spring preload of the fork  
The fork's preload can be adjusted by means of the adjusting screws [4].  
More information is provided in the chapter "Adjusting the fork and shock  
absorber.“  
4
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OPERATION INSTRUMENTS »  
Damping action during compression of shock absorber  
The shock absorber's damping action during compression travel (compression  
damping) can be adjusted. This allows you adjust the shock absorber's damp-  
ing behavior to match your driving style and the payload.  
The damping rate can be adjusted in the low and high-speed range (Dual  
Compression Control). The designation low and high-speed refers to the move-  
ment of the shock absorber and not to the motorcycle's driving speed.  
2
1
The adjusting screw [1] for the low-speed range can be adjusted with a  
screwdriver.  
The adjusting screw [2] for the high-speed range can be adjusted with a  
17 mm socket wrench.  
More information is provided in the chapter "Adjusting the fork and shock  
absorber.“  
13  
Rebound damping of shock absorber  
The shock absorber's damping action during rebound travel (rebound damp-  
ing) can also be adjusted. This allows you adjust the damping behavior to  
match your driving style and the payload.  
The adjusting screw [3] is located on the bottom of the shock absorber.  
More information is provided in the chapter "Adjusting the fork and shock  
absorber.“  
3
Spring preload on shock absorber  
The spring preload on the shock absorber can be adjusted by turning the adjust-  
ing ring [4].  
More information is provided in the chapter "Adjusting the fork and shock  
absorber.“  
4
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GENERAL TIPS AND WARNINGS FOR STARTING THE MOTORCYCLE »  
Instructions for initial operation  
– Make sure the work for the "pre-delivery inspection" was per-  
– NEW WHEELS HAVE A SMOOTH SURFACE, WHICH MEANS THAT  
formed by your authorized KTM workshop. The DELIVERY  
THEY MUST BE RUN IN TO ACHIEVE FULL GRIP. FOR THIS PUR-  
POSE, RIDE THE MOTORCYCLE CAREFULLY AT MODERATE SPEED  
DURING THE FIRST 200 KILOMETERS WITH NEW TIRES, TILTING  
CERTIFICATE and SERVICE MANUAL will be handed over  
when you pick up your vehicle.  
– Read these operating instructions carefully before your first ride.  
– Enter the chassis, engine and key numbers on page 1.  
– Familiarize yourself with the operating elements.  
– Adjust the clutch lever, the hand brake lever, the foot brake  
lever and the shift lever in the position that is most convenient  
for you.  
– This motorcycle is equipped with a three-way catalytic conver-  
ter. Leaded fuel will destroy the converter. Always use unlea-  
ded fuel.  
– Get used to handling the motorcycle on an empty parking lot,  
before starting on a longer drive. Also try to drive as slowly as  
possible and in standing position, to improve your feeling for  
the vehicle.  
– Do not drive along off-road tracks which go beyond your abitily  
and experience.  
THE VEHICLE AT DIFFERENT ANGLES SO THAT ALL SECTIONS ARE  
PROPERLY ROUGHENED. TIRES WILL NOT DISPLAY THEIR FULL  
GRIP CHARACTERISTICS UNTIL THEY ARE PROPERLY RUN IN.  
– WHEELS WITH A DIFFERENT RIM DIAMETER OR OTHER RIM WIDTH  
MAY NOT BE MOUNTED OTHERWISE THE VEHICLE HANDLING  
WILL NO LONGER BE SAFE.  
– OBSERVE THE TRAFFIC REGULATIONS, DRIVE DEFENSIVELY AND  
TRYING TO LOOK AHEAD AS FAR AS POSSIBLE SO THAT ANY HAZ-  
ARDS CAN BE RECOGNIZED AS EARLY AS POSSIBLE.  
– THE FASTER YOU DRIVE, THE MORE SENSITIVE YOUR MOTORCY-  
CLE WILL BE TO CROSSWIND AND CHANGING ROAD CONDITIONS.  
YOUR MOTORCYCLE CAN EASILY GO OUT OF CONTROL AT HIGH  
SPEEDS.  
– CHOOSE YOUR DRIVING SPEED ACCORDING TO THE CONDITIONS  
AND YOUR DRIVING SKILLS.  
– DRIVE CAREFULLY ON UNKNOWN ROADS OR ON UNFAMILIAR  
TRIALS.  
– RENEW THE VIZOR ON YOUR HELMET OR THE GLASS OF YOUR  
GOGGLES ON TIME SO AS TO ENSURE OPTIMUM VISION IN ANY  
SITUATION. WHEN LIGHT SHINES DIRECTLY ON SCRATCHED VISOR  
OR GOGGLES, THE OPERATOR WILL BE BLINDED.  
– NEVER LEAVE YOUR MOTORCYCLE WITHOUT SUPERVISION IF THE  
ENGINE IS RUNNING.  
– Hold the handlebars with both hands and leave your feet on  
the foot rests while driving.  
– Remove your foot from the foot brake lever when you are not  
braking. If the foot brake lever is not released the brake pads  
rub continuously and the braking system is overheated.  
– Do not make any alterations to the motorcycle and always use  
ORIGINAL KTM SPARE PARTS. Spare parts from other man-  
ufacturers can impair the safety of the motorcycle.  
– Motorcycles are sensitive to changes in the weight distribu-  
14  
tion. Read the section on "Accessories and payload“ when car- Accessories and payload  
rying luggage.  
Accessory parts and baggage can significantly decrease a motor-  
cycle's driving stability. Please observe the following warnings.  
– Pay attention to running-in procedure.  
Running in the LC8 engine  
– NEVER DRIVE FASTER THAN 130 KPH (80 MPH) IF YOU HAVE  
MOUNTED ACCESSORY PARTS ON YOUR MOTORCYCLE. ACCESSORY  
PARTS CAN SIGNIFICANTLY IMPAIR THE MOTORCYCLE'S HAN-  
DLING, ESPECIALLY IN THE MAXIMUM SPEED RANGE.  
– NEVER DRIVE FASTER THAN 130 KPH (80 MPH) IF YOUR MOTOR-  
CYCLE IS LOADED WITH CASES OR OTHER BAGGAGE. THEY WILL  
IMPAIR THE MOTORCYCLE'S HANDLING AT HIGHER SPEEDS AND  
CAN EASILY CAUSE IT TO GO OUT OF CONTROL  
– IF YOU HAVE CASES MOUNTED, DO NOT EXCEED THE MANUFAC-  
TURER'S RECOMMENDED MAXIMUM PAYLOAD.  
– FASTEN THE BAGGAGE CLOSE TO THE CENTER OF THE MOTOR-  
CYCLE AND DISTRIBUTE THE WEIGHT EVENLY ON THE FRONT AND  
REAR WHEELS AND ON THE LEFT AND RIGHT.  
– BAGGAGE MUST BE SECURELY AND ADEQUATELY FASTENEND;  
LOOSE BAGGAGE WILL SIGNIFICANTLY IMPAIR DRIVING SAFETY.  
– A HIGH PAYLOAD WILL CHANGE THE MOTORCYCLE'S HANDLING  
AND CONSIDERABLY INCREASE THE BRAKING DISTANCE; ADAPT  
YOUR DRIVING SPEED ACCORDINGLY.  
– NEVER EXCEED THE MAXIMUM PERMISSIBLE LADEN WEIGHT  
AND THE AXLE WEIGHTS. THE MAXIMUM PERMISSIBLE LADEN  
WEIGHT IS MADE UP OF THE FOLLOWING COMPONENTS:  
– MOTORCYCLE READY FOR OPERATION AND TANK FULL  
– LUGGAGE  
Even finely machined surfaces of engine parts have rougher sur-  
faces than parts that slide on each other for a long time. Therefore,  
every engine must be run in. For this reason, do not demand max-  
imum performance from the engine for the first 1000 kilometers  
(620 miles). The vehicle must be run in at low, changing perform-  
ance level for the first 1000 km (620 miles). The maximum num-  
ber of revolutions per minute must not go exceed 6500 rpm. Once  
you have run your engine in for 1000 km, you may push it to its  
9500 rpm limit , i.e. up to the black zone indicated in the tachome-  
ter. Exceeding the above listed rotations as well as pushing high  
rpm when the engine is cold will have an adverse effect on the life  
of your engine.  
– WEAR SUITABLE CLOTHING WHEN DRIVING A MOTORCYCLE.  
CLEVER KTM DRIVERS ALWAYS WEAR A HELMET, BOOTS, GLOVES  
AND A JACKET, REGARDLESS OF WHETHER DRIVING ALL DAY OR  
JUST FOR A SHORT TRIP. THE PROTECTIVE CLOTHING SHOULD  
BE BRIGHTLY COLORED SO THAT OTHER VEHICLE CAN SEE YOU  
AS EARLY AS POSSIBLE. YOUR PASSENGER WILL ALSO NEED  
SUITABLE PROTECTIVE CLOTHING.  
– DO NOT DRIVE AFTER HAVING CONSUMED ALCOHOL.  
– ALWAYS TURN ON THE LIGHT TO MAKE SURE THAT OTHER DRIV-  
ERS BECOME AWARE OF YOU AS EARLY AS POSSIBLE.  
DRIVER AND PASSENGER WITH PROTECTIVE CLOTHING AND HELMET  
– DRIVE AT A MODERATE SPEED FOR THE FIRST FEW KILOMETERS  
OF EACH TRIP TO ALLOW THE TIRES TO REACH THE NECESSARY  
OPERATING TEMPERATURE. MAXIMUM ROAD GRIP IS ASSURED  
WHEN THE TIRES ARE WARM.  
– THE FRONT AND REAR WHEEL ARE ALLOWED TO BE FITTED ONLY  
WITH TIRES THAT HAVE THE SAME PROFILE TYPE.  
– THE TIRES MUST BE DESIGNED FOR A SPEED OF OVER 240 KPH  
(SPEED SYMBOL ZR) AND MUST BE RELEASED BY KTM.  
– DO NOT EXCEED THE RESPECTIVE MAXIMUM SPEED FOR TIRES  
DESIGNED WITH A SPEED INDEX OF LESS THAN "V“ (240 KPH).  
A STICKER SHOWING THE MAXIMUM SPEED MUST BE AFFIXED  
TO THE MOTORCYCLE WITHIN THE DRIVER'S FIELD OF VISION.  
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DRIVING INSTRUCTIONS »  
Check the following before each start  
When you start, the motorcycle must be in perfect mechanical condition. For  
safety reasons, you should make a habit of performing an overall check of  
your motorcycle before each start.  
The following checks should be performed:  
1
FUEL  
Check the fuel quantity in the tanks.  
2
CHAIN  
Check the tension and condition of the chain.  
A loose chain can fall off the sprockets and a worn-out chain can tear. In  
both cases this can damage other motorcycle components and cause the  
motorcycle to go out of control. A chain that is too tight or not greased  
will cause unnecessary wear to the chain and sprockets.  
3
4
TIRES  
Check for damaged tires. Tires showing cuts or dents must be replaced.  
The tread depth must comply with the legal regulations. Also check the  
air pressure. Insufficient tread and incorrect air pressure deteriorate the  
driving performance.  
BRAKES  
Check correct functioning of the braking system. Check for sufficient  
brake fluid in the reservoir. The reservoirs have been designed in such a  
way that brake fluid does not need to be refilled even when the brake pads  
are worn. If the level of brake fluid falls below the minimum value, this  
indicates a leak in the braking system or completely worn out brake pads.  
Arrange for the braking system to be checked by a KTM specialist, as com-  
plete failure of the braking system can be avoided.  
15  
Also check the state of the brake hose and the thickness of the brake  
linings.  
Check free travel at hand brake lever and foot brake lever.  
5
6
7
CABLES  
Check the throttle cable for correct adjustment and smooth operation.  
COOLING FLUID  
Check the level of cooling fluid when the engine is cold.  
ELECTRICAL SYSTEM  
Start the engine and check the headlight, tail lamp, brake light, turn sig-  
nals, indicator lamps, horn and emergency-off switch for proper  
functioning.  
8
9
CHECK OIL LEVEL  
Insufficient oil results in premature wear and consequently to engine  
damage.  
BAGGAGE, PAYLOAD  
Never exceed the maximum total weight (380 kg, 838 lbs) and the motor-  
cycle's wheel loads. The maximum total weight is comprised of:  
– the motorcycle in a running condition and refueled (195 kg, 430 lbs)  
– the baggage and accessories  
– the driver and passenger with protective gear and helmet  
Adjust the tire inflation pressure as well as the preload and damping prop-  
erties of the fork and shock absorber to the total weight.  
10 REAR MIRROR  
Sit on the motorcycle and check the adjustment of the rear mirror.  
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DRIVING INSTRUCTIONS »  
Starting the engine  
1
2
Switch on emergency OFF switch [1].  
Switch on ignition (turn ignition key [2] into position ).  
NOTE:  
You will hear the operation of the fuel pump for approx. 2 seconds after  
switching on the ignition. The FI indicator lamp will also light up during  
this time and the engine should not be started.  
Switch transmission to idle (green indicator lamp N [3] lights up).  
Do not accelerate; operate starter button [5].  
The oil pressure warning lamp [4] should go out as soon as the engine is  
running.  
Take the load off the side stand and fold the side stand all the way up.  
1
3
4
5
6
DO NOT START THE ENGINE AND ALLOW IT TO IDLE IN A CLOSED ROOM. EXHAUST  
FUMES ARE POISONOUS AND CAN CAUSE LOSS OF CONSCIOUSNESS AND DEATH.  
ALWAYS PROVIDE ADEQUATE VENTILATION WHILE THE ENGINE IS RUNNING.  
– IF YOU ACCELERATE WHILE STARTING, THE ENGINE MANAGEMENT WILL NOT  
INJECT ANY FUEL AND THE ENGINE WILL NOT START. DO NOT ACCELERATE  
WHILE STARTING!  
– IF THE OIL PRESSURE WARNING LAMP DOES NOT GO OUT AS SOON AS THE  
ENGINE IS RUNNING, IMMEDIATELY SWITCH OFF THE ENGINE. IF THE ENGINE  
IS NOT SWITCHED OFF, ENGINE DAMAGE WILL OCCUR WITHIN A SHORT  
PERIOD OF TIME. CHECK THE ENGINE OIL LEVEL OR CONTACT A KTM  
WORKSHOP.  
2
– MAXIMUM PERIOD FOR CONTINUOUS STARTING: 5 SECONDS. WAIT AT LEAST  
5 SECONDS BEFORE TRYING AGAIN.  
– DON’T RIDE YOUR MOTORCYCLE WITH FULL LOAD AND DON’T REV ENGINE  
WHEN COLD. BECAUSE THE PISTON IS WARMING UP FASTER THAN THE  
WATER COOLED CYLINDER, IT CAN CAUSE ENGINE DAMAGE. ALWAYS LET THE  
ENGINE WARM UP BEFORE AND REFRAIN FROM DRIVING WITH FULL LOAD  
UNTIL THE ENGINE IS WARM.  
16  
3
IF THE ENGINE IS DOES NOT CRANK WHEN YOU ACTUATE THE STARTER  
TIP SWITCH:  
– the transmission is switched to idle  
– Check if the emergency OFF switch is on  
– Check if the ignition is on  
– the headlight is on (Light switch in  
position).  
– If this is not the case, the battery is discharged  
– If the lights are on, proceed as described in the „Trouble-shooting“  
section or contact a KTM dealer.  
4
IF THE ENGINE CRANKS BUT DOES NOT START, WHEN YOU ACTUATE THE  
STARTER TIP SWITCH:  
– whether you accelerated while starting  
– whether the FI indicator lamp is blinking  
– if yes, check Troubleshooting - Blink codes table  
– Check if sufficient fuel is in the tank  
– If this is not the case, refill the tank  
– if sufficient fuel is in the tank, proceed as described in the „Trouble-  
shooting“ section or contact a KTM dealer.  
NOTE:  
5
This motorcycle is equipped with a safety starting system. The engine can  
only be started if the transmission is in neutral or the clutch lever is pulled.  
If the side stand is folded down, the engine can only be started if the trans-  
mission is in neutral or the clutch lever is pulled. The engine will stall if a  
gear is engaged and the clutch lever is released with the side stand folded  
down.  
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DRIVING INSTRUCTIONS »  
– NEVER USE YOUR MOTORCYCLE WITHOUT AN AIR FILTER.  
OTHERWISE DUST AND DIRT MAY ENTER THE ENGINE AND CAUSE  
INCREASED WEAR.  
– STOP IMMEDIATELY IF A PERCEPTIBLE POWER LOSS OCCURS  
WHILE DRIVING DUE TO A DEFECTIVE IGNITION CAUSED BY A  
CYLINDER MISFIRING OR BREAKING DOWN. IF THE UNBURNED  
FUEL/AIR MIXTURE REACHES THE CATALYTIC CONVERTER, IT WILL  
IGNITE AND THE RESULTING HEAT WILL DESTROY THE CATALYTIC  
CONVERTER AND THE ADJOINING COMPONENTS.  
– THE RED COOLANT WARNING LAMP LIGHTS UP WHEN THE COOLANT  
TEMPERATURE HAS REACHED 120°C (248°F).  
POSSIBLE CAUSES FOR THE INCREASE IN TEMPERATURE:  
– LOW DRIVING VELOCITY AND HIGH LOAD SITUATION IN HIGH AIR  
TEMPERATURES  
Starting off  
Turn on the light, pull the clutch lever and engage 1st gear. Slowly  
release the clutch lever while you gently accelerate.  
– BEFORE YOU START OFF, CHECK THAT THE MAIN STAND HAS BEEN  
SWUNG UP FULLY. IF THE STAND DRAGS ON THE GROUND, THE  
MOTORCYCLE CAN GO OUT OF CONTROL.  
– ALWAYS TURN ON THE LIGHT WHEN YOU DRIVE. OTHER DRIVERS  
WILL BE ABLE TO SEE YOU MUCH SOONER.  
– DO NOT ATTACH A HELMET OR OTHER OBJECTS TO THE HELMET  
LOCK ROPE WHILE DRIVING. YOU CAN EASILY LOSE CONTROL OF  
THE MOTORCYCLE.  
– LEVEL OF COOLANT IN THE SYSTEM IS INSUFFICIENT  
– FAN AT RADIATOR IS NOT RUNNING  
IMPROPER USE OF THE CLUTCH WHILE DRIVING AT LOW VELOCITIES  
Shifting/Riding  
LET THE ENGINE COOL DOWN. MEANWHILE, CHECK WHETHER ANY  
COOLING LIQUID IS LEAKING OUT OF THE MOTORCYCLE. CHECK  
THE COOLING LIQUID LEVEL IN THE RADIATOR (NOT ONLY IN THE  
COMPENSATING TANK). - CAUTION SCALDING HAZARD! DO NOT  
DRIVE ON, UNTIL THERE IS SUFFICIENT LIQUID IN THE COLING  
SYSTEM.  
– IN THE EVENT THAT, WHILE RIDING ON YOUR MOTORCYCLE, YOU  
NOTICE ANY UNUSUAL OPERATION-RELATED NOISE, STOP IMME-  
DIATELY, TURN THE ENGINE OFF, AND CONTACT AN AUTHORIZED  
KTM DEALER.  
You are now in first gear, refered to as the drive or uphill gear.  
Depending on the conditions (traffic, road gradient, etc.), you can  
shift to a higher gear. Close throttle, at the same time pull clutch  
lever and shift to the next higher gear. Let clutch lever go again  
and open throttle. Do not shift gears and accelerate carefully in  
curves.  
Only accelerate to the extent that road and weather conditions allow.  
Be especially careful when you accelerate in curves. Abrupt open-  
ing of the throttle can cause the motorcycle to go out of control  
and also increases fuel consumption.  
By shifting down, use the brakes if necessary and close throttle at  
the same time. Pull clutch lever and shift down to the next gear.  
Let clutch lever go slowely and open throttle or shift down again.  
If the engine is killed f.ex. at a crossing, simply pull the clutch  
lever and start. It is not necessary to switch the gear to NEUTRAL.  
Stop immediately if the FI indicator lamp lights up while driving.  
The FI indicator lamp will start blinking as soon as the transmis-  
sion is in neutral. The rhythm of the blinking lamp will let you deter-  
mine the two-digit "blink code", e.g.:  
Braking  
Close throttle and apply the hand and foot brakes at the same time.  
Carefully apply the brakes on sandy, wet or slippery surfaces.  
Always brake with feeling, blocking wheels can cause you to skid  
or fall. Also change down to lower gears depending on your speed.  
Always finish braking before you enter a curve.  
17  
When driving downhill, use the braking effect of the engine. Change  
down one or two gears but do not overspeed the engine. In this  
way, you will not need to brake so much and the brakes will not  
overheat.  
Blink code 34: FI blinks 3x long, 4x short, pause,  
Blink code 06: FI blinks 6x short, pause  
The blink code will indicate which component is defective (see  
Troubleshooting). This makes it possible to pinpoint the defect if  
a diagnostic tool is unavailable.  
– IN THE RAIN, OR AFTER THE MOTORCYCLE HAS BEEN WASHED,  
BRAKING ACTION MAY BE DELAYED DUE TO WET BRAKE DISCS.  
FIRST, THE BRAKES MUST BE BRAKED DRY.  
– ON SALT-SPRAYED OR DIRTY ROADS BRAKE ACTION MAY BE  
DELAYED AS WELL. FIRST, THE BRAKES MUST BE BRAKED CLEAN.  
– REMEMBER THAT THE STOPPING DISTANCE WILL BE LONGER IF  
YOU ARE CARRYING A PASSENGER OR BAGGAGE.  
– WHEN YOU BRAKE, THE BRAKE DISCS, BRAKE PADS, BRAKE  
CALIPER AND BRAKE FLUID HEAT UP. THE HOTTER THESE PARTS  
GET, THE WEAKER THE BRAKING EFFECT. IN EXTREME CASES,  
THE ENTIRE BRAKING SYSTEM CAN FAIL.  
– AVOID ABRUPT LOAD CHANGES WHILE RIDING AROUND BENDS  
AND ON WET OR SLIPPERY GROUND. OTHERWISE YOU MIGHT  
EASILY LOSE CONTROL OVER YOUR MOTORCYCLE.  
– WHILE RIDING YOUR MOTORCYCLE, NEVER SWITCH THE IGNITION  
LOCK TO POSITIONS  
AND  
.
– DO NOT TRY TO CHANGE THE SETTINGS WHILE DRIVING. YOUR  
ATTENTION WILL BE DISTRACTED FROM THE TRAFFIC AND MAY  
CAUSE YOU TO LOSE CONTROL OF YOUR MOTORCYCLE.  
– THE PASSENGER MUST HOLD ON TO THE DRIVER OR THE HOLD-  
ING STRAP ON THE SEAT WHILE RIDING AND KEEP HIS/HER FEET  
ON THE PASSENGER FOOTRESTS.  
– REGULARLY MAKE SURE THAT THE BAGGAGE AND CASES ARE  
TIGHTLY FASTENED.  
– AFTER FALLING WITH THE MOTORCYCLE, CHECK ALL FUNCTIONS  
THOROUGHLY BEFORE STARTING UP OPERATIONS AGAIN.  
– A BENT HANDLEBAR MUST ALWAYS BE REPLACED. NEVER TRY TO  
STRAIGHTEN THE HANDLEBAR BECAUSE THIS WILL CAUSE IT TO  
LOSE ITS STABILITY.  
– HIGH RPM RATES WHEN THE ENGINE IS COLD HAVE AN ADVERSE  
EFFECT ON THE LIFE OF YOUR ENGINE. WE RECOMMEND YOU RUN  
THE ENGINE IN A MODERATE RPM RANGE FOR A FEW MILES GIV-  
ING IT A CHANCE TO WARM UP. AFTER THAT NO FURTHER PRE-  
CAUTIONS IN THIS RESPECT NEED BE TAKEN. THE ENGINE HAS  
REACHED OPERATING TEMPERATURE AS SOON AS THE SECOND  
BAR ON THE TEMPERATURE INDICATOR LIGHTS UP.  
– IF THE RED OIL PRESSURE WARNING LAMP LIGHTS UP WHILE DRIV-  
ING, THE OIL PRESSURE IS TOO LOW TO ADEQUATELY LUBRICATE  
THE ENGINE. STOP IMMEDIATELY AND SWITCH OFF THE ENGINE.  
IF YOU CONTINUE TO DRIVE, ENGINE DAMAGE WILL OCCUR WITHIN  
A SHORT PERIOD OF TIME. CHECK THE ENGINE OIL LEVEL OR CON-  
TACT AN AUTHORIZED KTM WORKSHOP.  
– NEVER HAVE THE THROTTLE WIDE OPEN WHEN CHANGING DOWN  
TO A LOWER GEAR. THE ENGINE WILL OVERSPEED, DAMAGING THE  
VALVES. IN ADDITION, THE REAR WHEEL BLOCKS SO THAT THE  
MOTORCYCLE CAN EASILY GET OUT OF CONTROL.  
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DRIVING INSTRUCTIONS »  
Stopping and parking  
Apply the brakes fully and put the engine into neutral. To stop the engine,  
switch off the ignition. Fold the side stand forward to the stop with your foot,  
put the weight of the motorcycle on the stand and park the bike on a firm sur-  
face. Lock the motorcycle.  
– ALWAYS PARK YOUR MOTORBIKE ON A SOLID AND HORIZONTAL  
SURFACE.  
– NEVER LEAVE YOUR MOTORCYCLE WITHOUT SUPERVISION AS LONG AS THE  
ENGINE IS RUNNING.  
– MOTORCYCLE ENGINES PRODUCE A GREAT AMOUNT OF HEAT WHILE RUN-  
NING. THE ENGINE RADIATORS, EXHAUST, EXHAUST SYSTEM, BRAKE DISCS,  
AND SHOCK ABSORBERS CAN BECOME VERY HOT. DO NOT TOUCH ANY OF  
THESE PARTS AFTER OPERATING THE MOTORCYCLE, AND TAKE CARE TO PARK  
IT WHERE PEDESTRIANS ARE NOT LIKELY TO TOUCH IT AND GET BURNED  
– NEVER PARK YOUR MOTORCYCLE IN PLACES WHERE THERE EXIST FIRE HAZ-  
ARDS DUE TO DRY GRASS OR OTHER EASILY FLAMMABLE MATERIALS.  
– ALWAYS TAKE OUT THE IGNITION KEY WHEN PARKING YOUR MOTORCYCLE  
SO THAT IT CANNOT BE USED BY UNAUTHORIZED PERSONS.  
– THE SIDE STAND IS DIMENSIONED FOR THE WEIGHT OF THE MOTORCYCLE  
ONLY. SITTING ON THE MOTORCYCLE WILL INCREASE THE WEIGHT ON THE  
SIDE STAND. THE SIDE STAND OR ENGINE CASE CAN BE DAMAGED AND THE  
MOTORCYCLE CAN TIP OVER.  
18  
Fuel  
In the condition at delivery, the LC8 engine requires unleaded fuel with at  
least RON 95 (USA = Premium RON 91).  
MAX  
THIS MOTORCYCLE IS EQUIPPED WITH A CATALYTIC CONVERTER THAT WILL BE  
DESTROYED IF YOU USE LEADED FUEL. ALWAYS USE UNLEADED FUEL.  
Fuel expands when its temperature rises. Therefore do not fill the tank to the  
top (see fig.).  
GASOLINE IS HIGHLY FLAMMABLE AND POISONOUS. EXTREME CAUTION SHOULD  
BE USED WHEN HANDLING GASOLINE. DO NOT REFUEL THE MOTORCYCLE NEAR  
OPEN FLAMES OR BURNING CIGARETTES. ALWAYS SWITCH OFF THE ENGINE  
BEFORE REFUELLING. BE CAREFUL NOT TO SPILL GASOLINE ON THE ENGINE OR  
EXHAUST PIPE WHILE THE ENGINE IS HOT. WIPE UP SPILLS PROMPTLY. IF GASO-  
LINE IS SWALLOWED OR SPLASHED IN THE EYES, SEEK A DOCTOR’S ADVICE  
IMMEDIATELY.  
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19  
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PERIODIC MAINTENANCE »  
1st Service  
after  
1000 km  
every  
7500 km  
or  
every  
15000 km  
or  
A CLEAN MOTORCYCLE CAN BE CHECKED MORE QUICKLY WHICH SAVES MONEY!  
once a year  
every 2 years  
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
Change engine oil and oil filter  
Clean oil screens of engine and oil tank  
Clean magnetic drain plugs of engine and oil tank  
Check oil lines for damage and kink-less arrangement  
Renew spark plugs  
z
z
z
Check and adjust valve clearance  
z
z
Check engine fastening bolts for tight fit  
Check all engine bolts accessible from the outside for tight fit  
Check clutch linings  
Check clutch pressure booster system  
Check rubber boot for cracks or leaks  
Check fault memory with the KTM diagnosis tool  
z
z
z
z
Perform a status check of neutral, clutch, 2nd/3rd gear and side stand  
switch using the KTM diagnosis tool  
z
z
Check the fuel hose, hoses on the vacuum sensors and secondary air sys-  
tem hoses for correct installation and damage  
z
z
z
z
z
z
z
z
20  
Replace the O-ring on the fuel hose connection and check for leaks  
Check the wiring harness on the throttle body for proper installation and  
damage  
z
z
z
z
z
z
Check the vent hoses and fuel lines for damage and kink-free installation  
Check cooling system for leaks and antifreeze protection  
Check radiator fan for proper operation  
z
z
Check the exhaust system for leaks and correct suspension and the clamps  
for a tight fit  
z
z
z
z
z
Replace the graphite gasket in the rear exhaust manifold slide  
Check actuating cables for damage, smooth operation, and kink-less arran-  
gement,adjust and lubricate  
z
z
z
z
z
z
z
Check the oil level in the hydraulic clutch reservoir  
Check air filter, renew if necessary, clean air filter box  
Check cables for damage and kink-less arrangement  
Check headlamp adjustment  
z
z
z
z
Check electrical system for function (low/high beams, stop light, turn indi-  
cators,headlamp, flasher, tell-tale lamps, speedometer illumination, horn,  
side-stand switch, clutch switch, emergency-off switch)  
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
Make sure all bolts and nuts are tight  
Check brake fluid level, lining thickness, and brake discs  
Change brake fluid  
z
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Check brake lines for damage and leaks  
Check/adjust smooth operation, free travel of handbrake/footbrake levers  
Check bolts of brake system for tight fit  
Check suspension strut and fork for leaks and proper operation  
Clean fork dust sleeves  
z
z
z
Bleed fork legs  
Check swinging-fork pivot  
Check/adjust steering-head bearing  
Check all chassis bolts for tight fit (fork plates, fork leg, axle nuts/bolts,  
swinging-fork pivot, reversing lever, suspension strut)  
z
z
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PERIODIC MAINTENANCE »  
1st Service  
after  
1000 km  
every  
7500 km  
or  
every  
15000 km  
or  
A CLEAN MOTORCYCLE CAN BE CHECKED MORE QUICKLY WHICH SAVES MONEY!  
once a year  
every 2 years  
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
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Check rim joint  
Check tire condition and inflation pressure  
Check chain, sprockets and chain guides for wear, force fit and tension  
Check bolts on pinion and chain sprocket for locking devices and a tight fit  
Lubricate chain  
Check wheel bearings and jerk damper for play  
IF MOTORCYCLE IS USED FOR COMPETITION 7500 KM SERVICE SHOULD BE CARRIED OUT AFTER EVERY RACE!  
Service intervalls should never be exceeded by more than 500 km.  
Maintenance work performed by an authorized KTM workshop is not a substitute for care and maintenance by the driver!  
IMPORTANT RECOMENDED MAINTENANCE PROCEDURES TO BE PERFORMED BASED ON A SEPARATE SUPPLEMENT ORDER  
at least  
every 2 years  
once a year  
or 15000 km  
21  
z
z
Perform complete fork maintenance  
Perform complete suspension strut maintenance  
Clean and lubricate steering-head bearing and sealing elements  
Treat the electrical contacts and switches with contact spray  
Treat battery connections with contact grease  
Change coolant fluid  
z
z
z
z
VITAL CHECKS AND CARE PROCEDURES TO CONDUCTED BY THE OWNER OR THE MECHANIC  
before  
each start  
after  
every cleaning  
every 1000 km or  
after off road use  
z
z
z
z
z
Check oil level  
Check brake fluid level  
Check brake pads for wear  
Check lighting system for proper operation  
Check horn for proper operation  
Lubricate and adjust actuating cables and nipples  
Clean chain  
z
z
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Lubricate chain  
z
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Check chain tension  
Check tire pressure and wear  
Check coolant level  
Check fuel lines for leaks  
Check all control elements for smooth running  
Grease the hand brake lever and clutch lever  
Check brake performance  
z
z
z
Treat exposed metal components (except for the braking and exhaust  
system) with wax-based anti-corrosion agents  
z
z
Treat ignition/steering lock and light switch with contact spray  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
ALL MAINTENANCE AND ADJUSTMENT WORK MARKED WITH AN ASTERISK * REQUIRES SPECIAL TECHNICAL SKILLS. IN YOUR OWN INTE-  
REST, HAVE THIS WORK PERFORMED BY AN AUTHORIZED KTM WORKSHOP, WHERE YOUR MOTORCYCLE WILL BE SERVICED BY SPECIALLY  
TRAINED TECHNICIANS.  
– DO NOT CLEAN THE MOTORCYCLE WITH A POWER WASHER OTHERWISE WATER WILL GET INTO THE BEARINGS, ELECTRIC SOCKET CON-  
NECTORS, ETC.  
– USE SPECIAL KTM SCREWS WITH THE CORRECT THREAD LENGTH TO FASTEN THE SPOILER TO THE TANK. MOUNTING OTHER SCREWS  
OR LONGER SCREWS COULD PUNCTURE THE TANK AND CAUSE FUEL TO LEAK OUT.  
– IF YOU DISCONNECT SOCKET CONNECTORS WITH SELF-LOCKING NUTS, REPLACE THEM BEFORE REMOUNTING. IF NO NEW SELF-  
LOCKING NUTS ARE AVAILABLE, APPLY LOCTITE 243 TO THE THREAD OF THE OLD NUTS. IF THE THREAD IS DAMAGED, REPLACE THE  
SCREWS AND NUTS.  
– DO NOT USE TOOTHED DISKS OR SPLIT WASHERS FOR THE ENGINE FASTENING BOLTS SINCE THEY WILL WORK THEIR WAY INTO THE  
FRAME COMPONENTS AND BECOME LOOSE. ALWAYS USE SELF-LOCKING NUTS.  
– LET THE MOTORCYCLE COOL DOWN BEFORE SERVICING TO AVOID BEING BURNED.  
– PROPERLY DISPOSE OF OILS GREASE, FILTERS, FUEL, CLEANSERS, ETC. OBSERVE THE REGULATIONS EFFECTIVE IN YOUR COUNTRY.  
– NEVER POUR USED OIL IN THE SEWER OR DISPOSE OF IT OUTDOORS. 1 LITER OF USED OIL WILL POLLUTE 1,000,000 LITERS OF WATER.  
22  
Adjusting the fork and shock absorber  
There are a number of ways to adjust the fork and shock absorber to match  
the chassis to your driving style and the payload.  
BASIC SETTING  
FORK  
990 SUPER DUKE  
We have provided a table with pragmatical values to help you tune up your  
motorcycle. These tune-up specifications are reference values only and should  
serve as a basis for your personal chassis and suspension tuning. Do not make  
arbitrary changes to the settings (maximum ±40%) since this may impair the  
handling characteristics (particularly in the high-speed range).  
Make sure both fork legs are equally adjusted.  
Compression adjuster (clicks)  
Rebound adjuster (clicks)  
Spring preload (turns)  
20 15 10 15  
20 15 10 15  
5
5
5
6
Adjusting compression damping of fork  
Hydraulic compression damping determines the reaction when the fork is com-  
pressed.  
Turn the adjusting screws [1] clockwise to increase damping, turn it counter-  
clockwise to reduce damping during compression.  
STANDARD ADJUSTMENT  
Turn adjusting screw clockwise as far as it will go.  
Turn 15 clicks in a counterclockwise direction.  
1
Adjusting rebound damping of fork  
Hydraulic rebound damping determines the reaction when the fork is  
rebound. By turning the adjusting screw [2] (REB), the degree of damping of  
the rebound can be adjusted. Turn the knob clockwise to increase damping,  
turn it counterclockwise to reduce damping during rebounding. Make the same  
damping rate adjustment to both fork legs.  
2
STANDARD ADJUSTMENT  
Turn adjusting screw clockwise as far as it will go.  
Turn 15 clicks in a counterclockwise direction.  
2
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Adjusting the spring preload on the fork  
The fork spring preload can be adjusted by turning the adjusting screws [1]  
(wrench size 24 mm) ± 5 mm (0,2 in).  
Turning in a clockwise direction will increase the preload, turning in a coun-  
terclockwise direction will decrease the preload. 1 turn will change the pre-  
load by 1 mm.  
1
Changing the preload will not affect the rebound damping adjustment, although  
adjusting screw [2] will turn at the same time.  
Generally, if the preload is higher, the rebound damping should also be set  
higher.  
2
STANDARD ADJUSTMENT:  
Turn adjusting screw counterclockwise as far as it will go.  
Turn 5 turns in a clockwise direction.  
BASIC SETTING  
SHOCK ABSORBER  
950 ADVENTURE  
Compression adjuster Low Speed (clicks) 25 20 10 15  
Compression adjuster High Speed (turns) 2,5 2 2 1,5  
Rebound adjuster (clicks)  
Spring preload (turns)  
22 17 10 5  
23  
6
6
6
6
Compression damping of shock absorber  
The shock absorber can synchronize the compression damping in the low and  
high-speed range separately (Dual Compression Control).  
Low and high speed refers to the movement of the shock absorber during com-  
pression and not to the speed of the motorcycle.  
The low and high-speed technology overlaps.  
The low-speed setting is primarily for slow to normal shock absorber compres-  
sion rates.  
The high-speed setting is effective at fast compression rates.  
Turning in a clockwise direction will increase the damping, turning counter-  
clockwise will decrease the damping.  
STANDARD ADJUSTMENT LOW-SPEED:  
Turn adjusting screw [3] clockwise as far as it will go.  
Turn 20 clicks in a counterclockwise direction.  
3
STANDARD ADJUSTMENT HIGH-SPEED:  
Turn adjusting screw (wrench size 17 mm) clockwise as far as it will go.  
Turn 2 turns in a counterclockwise direction.  
THE DAMPING UNIT OF THE SHOCK ABSORBER IS FILLED WITH HIGH-COMPRES-  
SION NITROGEN. NEVER TRY TO TAKE THE SHOCK ABSORBER APART OR TO DO  
ANYMAINTENANCE WORK YOURSELF. SEVERE INJURIES COULD BE THE RESULT.  
NEVER UNSCREW THE BLACK SCREW CONNECTION (24MM).  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Rebound damping of shock absorber  
By using the adjusting screw [1], the degree of damping of the rebound can  
be adjusted. Turn the knob in a clockwise direction to increase damping, turn  
it in a counterclockwise direction to reduce damping during rebounding.  
STANDARD ADJUSTMENT:  
Turn adjusting screw clockwise as far as it will go.  
Turn 17 clicks in a counterclockwise direction.  
1
THE DAMPING UNIT OF THE SHOCK ABSORBER IS FILLED WITH HIGH-COMPRES-  
SION NITROGEN. NEVER TRY TO TAKE THE SHOCK ABSORBER APART OR TO DO  
ANY MAINTENANCE WORK YOURSELF. SEVERE INJURIES COULD BE THE RESULT.  
Checking the chain tension  
Place the motorcycle on the side stand. Switch the transmission to neutral  
and push the chain up. The distance between the chain and the swing arm  
should be 7 mm when the upper part of the chain [A] is tensioned (see draw-  
ing). Correct the chain tension if necessary.  
A
– IF CHAIN TENSION IS TOO GREAT, PARTS WITHIN THE SECONDARY POWER  
TRANSMISSION (CHAIN, CHAIN SPROCKETS, TRANSMISSION AND REAR WHEEL  
BEARINGS) WILL BE SUBJECTED TO UNNECESSARY STRESS, RESULTING IN  
PREMATURE WEAR AND EVEN CHAIN BREAKAGE.  
7 mm  
– TOO MUCH SLACK IN THE CHAIN, ON THE OTHER HAND, CAN RESULT IN THE  
CHAIN JUMPING OFF THE CHAIN WHEELS. IF THIS HAPPENS, THE CHAIN COULD  
ALSO BLOCK THE REAR WHEEL OR DAMAGE THE ENGINE.  
– IN EITHER CASE THE OPERATOR IS LIKELY TO LOSE CONTROL OF THE MOTOR-  
CYCLE.  
24  
Correcting the chain tension  
Loosen the collar nut [2], loosen the counternuts [3] and turn the left and  
right adjustment screws [4] the same distance. Tighten the counternuts [3].  
To make sure the rear wheel is aligned, the marks on the chain tensioners  
must be in the same position on the left and right in relation to the reference  
marks [A]. Before tightening the wheel spindle make sure the chain tensioner  
[5] rests against the adjustment screws and the rear wheel is aligned with the  
front wheel.  
4
2
Tighten the collar nut [2] to 90 Nm.  
3
5
IF YOU DON’T HAPPEN TO HAVE A TORQUE WRENCH AT HAND, MAKE SURE YOU  
HAVE THE TIGHTENING TORQUE CORRECTED BY A KTM DEALER AS SOON AS POS-  
SIBLE. A LOOSE AXLE MAY LEAD TO AN UNSTABLE DRIVING BEHAVIOR OF YOUR  
MOTORCYCLE.  
5
A
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Chain maintenance  
For long chain life, good maintenance is very important. X-ring chains require  
only modest maintenance. The best way is to use lots of water, but never use  
brushes or solvents. After letting the chain dry, you can use a special X-ring  
chain spray (Motorex Chainlube 622).  
NO LUBRICATION IS ALLOWED TO REACH THE REAR TIRE OR THE BRAKE DISK,  
EITHERWISE THE ROAD ADHERENCE AND THE REAR WHEEL BRAKING EFFECTS  
WOULD BE STRONGLY REDUCED AND THE MOTORCYCLE COULD EASILY GET OUT  
OF CONTROL.  
– THE CHAIN DOES NOT HAVE A CHAIN JOINT FOR SAFETY REASONS. ALWAYS  
HAVE THE CHAIN REPLACED IN AN AUTHORIZED KTM WORKSHOP WHERE THE  
SERVICE TECHNICANS HAVE THE REQUIRED RIVETING TOOL.  
– NEVER MOUNT A NORMAL CHAIN JOINT.  
Also check sprockets and chain guides for wear, and replace if necessary.  
25  
Checking the chain for wear  
To check the chain for wear proceed as follows:  
Switch the transmission to idle and put a load of approx. 15 kilograms  
(33 lbs) on the lower part of the chain (see illustration). Now measure the  
distance between 18 chain rollers on the upper part of the chain. The chain  
needs to be replaced when the distance is 272 mm (10.70 in). Since chains  
do not always wear evenly, repeat the measurement at different parts of the  
chain.  
Replace the chain if any X-rings are missing.  
NOTE:  
If you mount a new chain, the sprockets should also be replaced. New chains  
wear faster if used on old used sprockets.  
15 KG  
max. 272 mm  
1
2
3
16 17 18  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
General information on KTM disk brakes  
BRAKE CALIPERS:  
2
1
The front brake calipers [1] have 4 brake pistons each and are firmly con-  
nected to the fork legs. The front brake disks are designed as "floating" brake  
disks, i.e. they are not firmly connected to the front wheel.  
The lateral balance ensures that the brake pads always have the best possi-  
ble contact to the brake disk. Apply Loctite 243 to the screws [2] on the brake  
caliper support and tighten to 45 Nm.  
The rear brake caliper [3] has 1 brake piston and is designed as a "floating  
brake caliper, i.e. it is not firmly connected to the brake caliper support. The  
lateral balance ensures that the brake pads always have the best possible con-  
tact to the brake disk.  
FOR SAFETY REASONS, ALWAYS HAVE MAINTENANCE WORK AND REPAIRS TO THE  
BRAKE SYSTEM PERFORMED BY AN AUTHORIZED KTM WORKSHOP.  
3
BRAKE PADS:  
Your motorcycle is equipped with sintered brake pads in the front and rear  
and homologated accordingly. They guarantee maximum braking  
performance.  
Front brake pads:  
Rear brake pads:  
Toshiba TT 2172 HH  
Toshiba TTH 38 GF  
BRAKE PADS AVAILABLE IN THE ACCESSORY TRADE ARE OFTEN NOT AUTHOR-  
IZED FOR OPERATION OF YOUR KTM MOTORCYCLE IN ROAD TRAFFIC. THE BRAKE  
PADS DESIGN AND FRICTION FACTOR AND THEREFORE THE BRAKING POWER CAN  
DEVIATE SIGNIFICANTLY FROM ORIGINAL KTM BRAKE PADS. IF YOU USE DIFFER-  
ENT BRAKE PADS THAN THOSE PROVIDED WITH THE ORIGINAL EQUIPMENT, IT  
CANNOT BE WARRANTED THAT THEY ARE AUTHORIZED FOR USE IN ROAD TRAF-  
FIC. YOUR MOTORCYCLE WILL NOT LONGER COMPLY WITH THE REGULATIONS  
AUTHORIZING THE USE OF VEHICLES FOR ROAD TRAFFIC AND THE WARRANTY  
WILL BE VOID.  
26  
BRAKE FLUID RESERVOIRS:  
The brake fluid reservoirs on the front and rear wheel brakes have been  
designed in such a way that even if the brake pads are worn it is not neces-  
sary to top up the brake fluid. There is no reason to remove the reservoir cap  
under normal conditions. If the brake fluid level drops below the minimum  
either the brake system has a leak or the brake pads are completely worn down.  
In this case, consult an authorized KTM dealer immediately.  
BRAKE FLUID:  
KTM fills the brake systems with Motorex Brake Fluid DOT 5.1 brake fluid,  
one of the best brake fluids that is currently available. We recommend that  
you continue to use it. DOT 5.1 brake fluid is based on glycol ether and of an  
amber color. If you do not have any DOT 5.1 for refilling, you may use DOT  
4 brake fluid. However, you should replace it as soon as possible  
by DOT 5.1.  
Never use DOT 5 braking fluid. It is based on silicone oil and has a purple  
color. Gaskets and brake hoses are not compatible with it.  
Brake fluid is exposed to a high thermal load and absorbs moisture from the  
air, which lowers the boiling point. The brake fluid should therefore be changed  
at the prescribed intervals.  
HAVE THE BRAKE FLUID FOR THE FRONT AND REAR BRAKE CHANGED AT AN  
AUTHORIZED KTM WORKSHOP EVERY 2 YEARS.  
A
BRAKE DISCS:  
Wear reduces the thickness of the brake disc in the area of contact [4] with  
the brake pads. The brake disk should not be thinner than 4 mm (0.16 in) at  
the weakest point [A]. Check the wear at several points.  
4
BRAKE DISKS THAT ARE LESS THAN 4 MM (0.16 IN) THICK ARE A SAFETY HAZ-  
ARD. HAVE WORN BRAKE DISKS REPLACED IMMEDIATELY.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Adjusting the basic position of the hand brake lever  
The basic position of the hand brake lever can be modified by turning the  
adjusting screw [1]. This lets you adapt the position of the pressure point (the  
resistance you feel on the hand brake lever when the brake pads are pressed  
against the brake disk) to fit any hand.  
1
AT THE HAND BRAKE LEVER, FREE TRAVEL MUST AT LEAST BE 3 MM (0.12 IN).  
ONLY THEN MAY THE PISTON IN THE HAND BRAKE CYLINDER BE MOVED (TO BE  
RECOGNIZED BY THE GREATER RESISTANCE OF THE HAND BRAKE LEVER). IF  
THIS FREE TRAVEL IS NOT PROVIDED, PRESSURE WILL BUILD UP IN THE BRAK-  
ING SYSTEM, AND THE FRONT WHEEL BRAKE MAY FAIL DUE TO OVERHEATING.  
min. 3 mm  
Checking the front brake fluid level  
The brake fluid reservoir for the front brake is located on the left side of the  
handlebar and has a "MIN" and a "MAX" mark. The brake fluid level may not  
fall below the "MIN" mark when the vehicle is parked in a vertical position.  
– IF THE BRAKE FLUID LEVEL DROPS BELOW THE MINIMUM EITHER THE BRAKE  
SYSTEM HAS A LEAK OR THE BRAKE PADS ARE COMPLETELY WORN DOWN.  
IN THIS CASE, CONSULT AN AUTHORIZED KTM DEALER IMMEDIATELY.  
– HAVE THE BRAKE FLUID CHANGED AT AN AUTHORIZED KTM WORKSHOP  
EVERY 2 YEARS.  
27  
Refilling front brake fluid *  
It is not necessary to refill brake fluid under normal conditions (see General  
information on KTM disk brakes).  
3
However, brake fluid must be refilled as soon as the brake fluid level reaches  
the MIN mark.  
Remove the screws [2] and cover [3] with the rubber boot [4]. Move the hand  
brake cylinder in a horizontal position and add DOT 5.1 (Motorex Brake Fluid  
DOT 5.1). Press the rubber boot together and remount the cover. Wash off  
any overflowing or spilled brake fluid with water. Actuate the front brake until  
you feel the pressure point.  
4
2
– ACTUATE THE FRONT BRAKE UNTIL YOU FEEL THE POINT OF PRESSURE.  
– NEVER USE DOT5 BRAKE FLUID! IT IS BASED ON SILICONE OIL AND OF A PUR-  
PLE COLOR. SEALS AND BRAKE HOSES MUST BE ESPECIALLY ADAPTED  
TO IT.  
– STORE BRAKE FLUID OUT OF REACH OF CHILDREN.  
– BRAKE FLUID CAN CAUSE SKIN IRRITATION. AVOID CONTACT WITH SKIN AND  
EYES. IF YOU GET BRAKE FLUID IN YOUR EYES, RINSE WITH PLENTY OF WATER  
AND CONSULT A DOCTOR.  
– DON’T LET BRAKE FLUID GET IN CONTACT WITH PAINT, IT IS AN EFFECTIVE  
PAINT REMOVER.  
– USE ONLY CLEAN BRAKE FLUID TAKEN FROM A TIGHTLY SEALED CONTAINER.  
Checking the front brake pads  
The brake pads can be inspected from below. The linings must be at least  
1 mm (0.04 in) thick.  
min.  
1 mm  
AT THEIR MOST WORN POINT BRAKE PAD LININGS SHOULD NOT BE THINNER  
THAN 1 MM, OTHERWISE THEY COULD LEAD TO BRAKE FAILURE. FOR YOUR OWN  
SAFETY DON’T PUT OFF HAVING YOUR BRAKE PADS CHANGED.  
IF THE BRAKE PADS ARE REPLACED TOO LATE WHEN THE LINING IS PARTLY OR  
COMPLETELY WORN OFF, THE STEEL PARTS ON THE BRAKE PADS WILL GRIND  
AGAINST THE BRAKE DISKS. THIS SIGNIFICANTLY DECREASES THE BRAKING  
EFFECT AND DESTROYS THE BRAKE DISKS.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Changing the basic position of the foot brake lever *  
Loosen the counternut [1] and turn the push rod [2] until the foot brake lever  
is in the right position. Tighten the counternut again. For the best possible  
connection, the push rod should be screwed at least 6 turns (6 mm) into the  
heim joint (see drawing).  
If the push rod is not screwed in far enough, the connection can brake and  
cause the rear brake to fail in extreme cases.  
6 mm  
2
1
Checking the rear brake fluid level  
The brake fluid reservoir for the rear brake is located on the rear right of the  
vehicle and has a "MIN" and a "MAX" mark. The brake fluid level may not fall  
below the "MIN" mark when the vehicle is parked in an upright position.  
– IF THE BRAKE FLUID LEVEL DROPS BELOW THE MINIMUM EITHER THE BRAKE  
SYSTEM HAS A LEAK OR THE BRAKE PADS ARE COMPLETELY WORN DOWN.  
IN THIS CASE, CONSULT AN AUTHORIZED KTM DEALER IMMEDIATELY.  
– HAVE THE BRAKE FLUID CHANGED AT AN AUTHORIZED KTM WORKSHOP  
EVERY 2 YEARS.  
28  
Refilling rear brake fluid *  
It is not necessary to refill brake fluid under normal conditions (see General  
information on KTM disk brakes).  
However, brake fluid must be refilled as soon as the brake fluid level reaches  
the MIN mark.  
3
Remove the cover [3] and rubber boot [4]. Add DOT 5.1 (Motorex Brake Fluid  
DOT 5.1). Press the rubber boot together and remount the cover. Wash off  
any overflowing or spilled brake fluid with water. Actuate the rear brake until  
you feel the pressure point.  
4
– ACTUATE THE REAR BRAKE UNTIL YOU FEEL THE POINT OF PRESSURE.  
– NEVER USE DOT5 BRAKE FLUID! IT IS BASED ON SILICONE OIL AND OF A PUR-  
PLE COLOR. SEALS AND BRAKE HOSES MUST BE ESPECIALLY ADAPTED  
TO IT.  
– STORE BRAKE FLUID OUT OF REACH OF CHILDREN.  
– BRAKE FLUID CAN CAUSE SKIN IRRITATION. AVOID CONTACT WITH SKIN AND  
EYES. IF YOU GET BRAKE FLUID IN YOUR EYES, RINSE WITH PLENTY OF WATER  
AND CONSULT A DOCTOR  
– DON’T LET BRAKE FLUID GET IN CONTACT WITH PAINT, IT IS AN EFFECTIVE  
PAINT REMOVER.  
– USE ONLY CLEAN BRAKE FLUID TAKEN FROM A TIGHTLY SEALED CONTAINER.  
Checking the rear brake pads  
The brake pads can be inspected from the rear. The thickness of the linings  
may not be less than 1 mm (0.04 in).  
min.  
1 mm  
AT THEIR MOST WORN POINT BRAKE PAD LININGS SHOULD NOT BE THINNER  
THAN 1 MM, OTHERWISE THEY COULD LEAD TO BRAKE FAILURE. FOR YOUR OWN  
SAFETY DON’T PUT OFF HAVING YOUR BRAKE PADS CHANGED.  
IF THE BRAKE PADS ARE REPLACED TOO LATE SO THAT THE LINING IS PARTLY  
OR ENTIRELY WORN AWAY, THE STEEL COMPONENTS OF THE BRAKE PAD WILL  
RUB AGAINST THE BRAKE DISC, IMPARING THE BRAKING EFFECT AND DESTROY-  
ING THE BRAKE DISC.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Dismounting and remounting the front wheel *  
Place the front of the motorcycle on a motorcycle stand (available as an acces-  
sory), lifting the front wheel entirely off the ground.  
To remove the left and right brake caliper, remove the two screws [1] on each  
caliper and pull the brake caliper off the brake disk towards the back.  
Loosen the collar screw [2] and the clamping screws [3] on both fork leg axle  
passages.  
Unscrew the collar screw approx 8 turns, press on the collar screw with your  
hand to push the wheel spindle out of the fork leg axle passage and remove  
the collar screw. Hold the front wheel while you pull out the wheel spindle.  
Lift the front wheel off the fork.  
Take the left [4] and right distance bushing out of the shaft seal rings.  
– DO NOT OPERATE THE HAND BRAKE WHEN THE FRONT WHEEL HAS BEEN  
DISMOUNTED.  
1
– BE CAREFUL NOT TO DAMAGE THE BRAKE DISKS WHEN YOU LAY THE FRONT  
WHEEL DOWN.  
1
29  
2
3
3
Before you remount the front wheel, clean and grease the shaft seal rings [5]  
and the bearing surface [A] of the distance bushings and mount the distance  
bushings (wide distance bushing in the left shaft seal ring). When mounting  
the distance bushing, be careful not to press the sealing lips towards the inside.  
position the front wheel according to the running direction shown by the arrows  
[B] on the rim.  
4
A
To remount the front wheel, lift the wheel on the fork and mount the wheel  
spindle.  
Mount the collar screw [2] and tighten slightly, tighten the clamping screws  
[3] on the right fork leg axle passage to prevent the wheel spindle from turn-  
ing and tighten the collar nut to 60 Nm.  
5
Remount the brake calipers. Apply Loctite 243 to the screws [1] on the brake  
caliper support and tighten to 45 Nm.  
Loosen the clamping screws on the right fork leg axle passage, pull the motor-  
cycle off the stand, actuate the front wheel brake and vigorously compress  
the fork several times to align the fork legs.  
Finally, tighten the clamping screws on both fork leg axle passages to 15 Nm.  
B
– IF YOU DO NOT HAVE A TORQUE WRENCH TO MOUNT THE WHEEL, HAVE THE  
TORQUES CORRECTED BY AN AUTHORIZED KTM WORKSHOP AS SOON AS POS-  
SIBLE. A LOOSE AXLE PASSAGE CAN CAUSE THE MOTORCYCLE'S HANDLING  
PERFORMANCE TO BECOME INSTABLE.  
– AFTER MOUNTING THE FRONT WHEEL, KEEP OPERATING THE HAND BRAKE  
UNTIL THE PRESSURE POINT RETURNS.  
– ALWAYS KEEP THE BRAKE DISKS FREE FROM OIL AND GREASE, OTHERWISE  
THE BRAKING EFFECT WILL BE SIGNIFICANTLY REDUCED.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Dismounting and remounting the rear wheel *  
Place the back of the motorcycle on a motorcycle stand (available as an acces-  
sory), lifting the rear wheel entirely off the ground.  
Unscrew the collar nut [1], remove the chain tensioner [2], hold the rear wheel  
while you pull out the wheel spindle [3]. Push the rear wheel forward as far  
as possible and remove the chain from the rear sprocket. Carefully take the  
rear wheel off the swing arm.  
1
– DO NOT OPERATE THE REAR BRAKE WHEN THE REAR WHEEL HAS BEEN DIS-  
MOUNTED.  
– ALWAYS PLACE THE WHEEL ON THE GROUND WITH THE BRAKE DISC POINT-  
ING UPWARDS. OTHERWISE THE BRAKE DISC MAY BE DAMAGED.  
– IF THE AXLE IS DISMOUNTED, CLEAN THE THREAD OF THE WHEEL SPINDLE  
AND COLLAR NUT THOROUGHLY AND APPLY A NEW COAT OF GREASE (MOTOREX  
LONG THERM 2000) TO PREVENT THE THREAD FROM JAMMING.  
30  
Before remounting the rear wheel, clean and grease the bearing surface of  
the bushings [5] and the shaft seal ring [6].  
2
The rear wheel is remounted in the reverse order. Make sure the chain ten-  
sioners [4] are mounted in the same way on the left and right. The marks on  
the chain tensioners must be in the same position on the left and right in  
relation to the reference marks [A]. Before you tighten the collar nut to  
90 Nm, press the rear wheel towards the front to allow the chain tensioner to  
rest against the clamping screws.  
4
3
– IF YOU DON’T HAPPEN TO HAVE A TORQUE WRENCH AT HAND, MAKE SURE  
YOU HAVE THE TIGHTENING TORQUE CORRECTED BY A KTM DEALER AS SOON  
AS POSSIBLE. A LOOSE WHEEL SPINDLE MAY LEAD TO AN UNSTABLE DRIV-  
ING BEHAVIOR OF YOUR MOTORCYCLE.  
– AFTER MOUNTING THE REAR WHEEL, KEEP OPERATING THE FOOTBRAKE  
UNTIL THE PRESSURE POINT RETURNS.  
A
– IT IS VERY IMPORTANT TO KEEP THE BRAKE DISK FREE FROM OIL AND  
GREASE, OTHERWISE THE BRAKING EFFECT WOULD BE STRONGLY REDUCED.  
6
5
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Tires, air pressure  
Tire type, tire condition, and how much air pressure the tires have in them  
affect the way your motorcycle rides, and they must therefore be checked when-  
ever you’re getting ready to go anywhere on your motorcycle.  
FOR DRIVING SAFETY AND MAXIMUM HANDLING, ONLY USE TIRES AUTHORIZED  
BY KTM CORRESPONDING TO THE "ZR" SPEED INDEX (OVER 240 KPH). OTHER  
TIRES CAN HAVE A NEGATIVE EFFECT ON THE MOTORCYCLE'S HANDLING (E.G.  
CAN CAUSE IT TO "WOBBLE" AT HIGHER SPEEDS).  
Tire type and size can be found in the technical specifications and in the  
homologation certificate  
Tire condition has to be checked every time you want to ride your motor-  
cycle. Before leaving check for punctures and nails or other sharp objects  
that might have become embedded in the tire.  
– Refer to the specific regulations in your country for minimum tire tread  
requirements. We recommend replacing tires at the latest when the tread  
is down to 2 mm (0.08 in).  
Tire pressure should be checked regularly on a “cold” tire. Adapt the air  
pressure to the motorcycle's total weight. Proper pressure ensures opti-  
mum driving comfort and extends the life of your tires.  
TIRES – AIR PRESSURE  
990 Super Duke  
front  
rear  
Road, driver only  
2,4 bar  
2,4 bar  
2,6 bar  
2,6 bar  
Road, with passenger 2,4 bar  
maximum payload  
2,4 bar  
– DO NOT MOUNT TIRES WHICH HAVE NOT BEEN APPROVED BY KTM. OTHER  
TIRES COULD HAVE ADVERSE EFFECTS ON THE WAY YOUR MOTORCYCLE  
RIDES.  
– USE TIRES OF THE SAME BRAND AND TYPE FOR THE FRONT AND REAR  
WHEELS.  
– FOR YOUR OWN SAFETY REPLACE DAMAGED TIRES IMMEDIATELY.  
– WORN TIRES CAN HAVE A NEGATIVE EFFECT ON HOW YOUR MOTORCYCLE  
PERFORMS, ESPECIALLY ON WET SURFACES  
31  
– IF AIR PRESSURE IS TOO LOW, ABNORMAL WEAR AND OVERHEATING OF THE  
TIRE CAN RESULT  
– NEW WHEELS HAVE A SMOOTH SURFACE, WHICH MEANS THAT THEY MUST  
BE RUN IN TO ACHIEVE FULL GRIP. FOR THIS PURPOSE, RIDE THE MOTOR-  
CYCLE CAREFULLY AT MODERATE SPEED DURING THE FIRST 200 KILOMETERS  
(125 MILES) WITH NEW TIRES, TILTING THE VEHICLE AT DIFFERENT ANGLES  
SO THAT ALL SECTIONS ARE PROPERLY ROUGHENED. TIRES WILL NOT DIS-  
PLAY THEIR FULL GRIP CHARACTERISTICS UNTIL THEY ARE PROPERLY RUN IN.  
– FOR REASONS OF SAFETY, IT IS RECOMMENDED TO EXCHANGE THE VALVE  
INSERT WHENEVER A NEW TIRE IS MOUNTED.  
Battery  
1
The battery is located in the front spoiler in front of the engine and is main-  
tenance-free. It is not necessary to check the electrolyte level or to refill water.  
Simply keep the battery poles clean and slightly grease them with an acid-  
free grease if necessary.  
NEVER REMOVE THE CLOSING COVER [1] OTHERWISE THE BATTERY WILL BE  
DAMAGED.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Removing and remounting the battery *  
The battery only needs to be removed if the motorcycle is being immobilized.  
Remove the screws [1] on both sides, loosen the screws [2] 2 turns and remove  
the front spoiler towards the front. Push the cables to the side. Remove the  
screws [3] and fold the battery cover [4] down.  
First disconnect the negative terminal, then the positive terminal from the  
battery. Make sure the battery terminals are not bent when they are removed.  
Remove the battery cover and take out the battery.  
1
Charge the battery before and after storage. Storage temperature 0 - 35°C.  
When remounting the battery, position it in the battery compartment and mount  
the battery cover. First connect the cables on the positive terminal, then con-  
nect the negative terminal to the battery to avoid a short-circuit. Open the  
battery cover and fasten with 2 screws. Remount the front spoiler. Apply Loctite  
243 to the screws [1] and tighten to 10 Nm.  
2
2
– IF ELECTROLYTE (SULPHURIC ACID) LEAKS FROM THE BATTERY, PROCEED WITH  
GREAT CARE. THE ELECTROLYTE CAN CAUSE SEVERE BURNS.  
– IN THE CASE OF SKIN CONTACT RINSE THOROUGHLY WITH WATER.  
– IN THE CASE OF CONTACT WITH THE EYES, THOROUGHLY RINSE EYES WITH  
WATER FOR AT LEAST 15 MINUTES. IMMEDIATELY CONSULT A DOCTOR.  
– THE BATTERY IS A CLOSED MODEL BUT CAN NEVERTHELESS EMIT EXPLO-  
SIVE GASES. AVOID SPARKS AND OPEN FIRE NEAR THE BATTERY.  
– DEFECTIVE BATTERIES MUST BE STORED OUT OF THE REACH OF CHILDREN.  
ENSURE PROPER DISPOSAL OF DISCARDED BATTERIES.  
3
3
– THE SCREWS ON THE UNDERRIDE PROTECTION MUST BE SECURED WITH LOC-  
TITE 243 TO PREVENT THEM FROM BECOMING LOOSE.  
32  
NEVER DISCONNECT THE BATTERY WHILE THE ENGINE IS RUNNING. THIS WILL  
DESTROY THE RECTIFIER-REGULATOR.  
Charging the battery  
Note: a battery charger, item no. 58429074000, is available from your KTM  
dealer. You can also use the battery charger to test the off load voltage, starta-  
bility of the battery and the generator capacity.  
Remove the front spoiler and fold the battery cover down; then determine the  
battery's charge condition. To determine the charge condition, use a voltmeter  
to measure the voltage between the battery terminals (off load voltage). For  
a precise measurement, the battery should not have been charged or discharged  
for at least 30 minutes.  
4
If the voltage exceeds 12.4 V, it does not need to be charged.  
If the voltage is below 12.4 V, the battery should be charged.  
CHARGING:  
Disconnect the negative terminal from the battery to avoid damage to the motor-  
cycle's electronic system.  
Connect the battery charger to the battery terminals. First connect the cables  
to the positive terminal, then to the negative terminal on the battery. Charge  
the battery for 5 to a max. of 10 hours with 1.4 amperes and a max. of 14.4  
volts. For a quick charge, do not charge the battery with 4.5 amperes and a  
max. of 14.4 volts for more than 1 hour.  
VOLT  
– ALWAYS DISCONNECT THE NEGATIVE TERMINAL FROM THE BATTERY PRIOR TO  
CHARGING TO AVOID DAMAGE TO THE MOTORCYCLE'S ELECTRONIC SYSTEM.  
– IF THE CHARGE CONDITION CANNOT BE ESTABLISHED, THE BATTERY MAY ONLY BE  
CHARGED 5 TO A MAX. OF 10 HOURS WITH 1.4 AMPERES AND A MAX. OF 14.4 VOLTS.  
– ALWAYS CONNECT THE BATTERY TO THE CHARGING UNIT BEFORE TURNING THE  
CHARGING UNIT ON.  
– WHEN RECHARGING THE BATTERY IN CLOSED ROOMS THERE IS SUFFICIENT  
VENTILATION. EXPLOSIVE GASES ARE RELEASED DURING THE BATTERY CHARGING  
PROCESS.  
– CHARGING TIME AND CHARGING VOLTAGE SHOULD NOT EXCEED THE STATED VAL-  
UES. OTHERWISE ELECTROLYTE WILL BE RELEASED THROUGH THE SAFETY VALVES.  
– AVOID QUICK CHARGING IF POSSIBLE.  
– TO AVOID DAMAGE, DO NOT REMOVE THE LOCKING BAR.  
Jump start  
Jump starts are not recommended since they can damage the motorcycle's  
electronic system.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Main fuse  
The main fuse protects all of the motorcycle's electric power consumers. The  
main fuse is located on the left under the front spoiler.  
1
2
Pull the connector [1] out of the bracket, remove the cap [2] and check the  
main fuse [3]. A spare fuse [4](30 amperes)is also plugged into the bracket.  
Always replace blown fuses with an equivalent fuse. Visit an authorized KTM  
workshop if a new fuse blows again after it is inserted.  
4
NEVER USE A STRONGER FUSE OR A REPAIRED FUSE. IMPROPER USE CAN  
DESTROY THE ENTIRE ELECTRIC SYSTEM.  
3
33  
Fuses for individual power consumers  
A fuse box is mounted under the seat containing additional fuses that pro-  
tect the individual electric power consumers.  
The power consumers and the corresponding capacities are listed on the cover  
of the fuse box [5]. Spare fuses [6] of 10 and 15 amperes are located next  
to the fuse box.  
5
Replace a blown fuse only with an equivalent one. If a new fuse that has just  
been set in gets blown again, you are strongly advised to have it  
inspected by a KTM dealer.  
6
UNDER NO CIRCUMSTANCES IS A STRONGER FUSE ALLOWED TO BE SET IN OR  
A FUSE ALLOWED TO BE “REPAIRED”. AN INEXPERT TREATMENT COULD DAM-  
AGE THE WHOLE ELECTRICAL INSTALLATION!  
The ACC fuse [7] is designed for accessories with a maximum power con-  
sumption of 10 amperes. A connector [8] to connect the equipment is pro-  
vided under the seat. Ask your authorized KTM workshop for details.  
8
7
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Replacing the headlight lamp *  
Remove the screws [1] on the left and right and tilt the headlight mask down  
towards the front.  
NEVER TOUCH THE GLASS OF THE BULB WITH YOUR FINGERS. THE GLASS OF  
THE BULB MUST REMAIN ABSOLUTELY FREE FROM GREASE. HEAT WILL OTHER-  
WISE CAUSE THE GREASE TO EVAPORATE AND SETTLE DOWN ON THE  
REFLECTOR.  
1
1
BULB FOR HIGH BEAM [A]:  
Remove the rubber cap [2] and pull off the connector [3]. Detach the retain-  
ing clip and remove the bulb.  
2
4
3
Insert a new bulb, attach the retaining clip, connect the connector and mount  
the rubber cap.  
B
A
34  
BULB FOR LOW BEAM [B]:  
Remove the rubber cap [4] and pull off the connector [5]. Detach the retain-  
ing clip and remove the bulb.  
When you insert the new bulb, make sure the tab fits in the corresponding  
recess in the socket.  
Attach the retaining clip, connect the connector to the bulb and mount the  
rubber cap.  
5
BULB FOR THE PARKING LIGHT:  
Since a number of parts need to be removed to replace the parking light bulb,  
we recommend that you have the lamp replaced at an authorized KTM  
workshop.  
Adjusting the headlight range  
The payload can make it necessary to correct the headlight range.  
The headlight range can be adjusted with the adjusting screw [6]. Turning in  
a clockwise direction will increase the headlight range, turning in a counter-  
clockwise direction will reduce the headlight range.  
6
CONTROL:  
Make a mark on a light colored wall behind a horizontal surface, at the height  
corresponding to the center of the headlight. Position your motorcycle 5  
meters from the wall in a fully loaded condition (baggage, driver, passenger)  
and switch on the low beams. The light/dark boundary should be at the mark.  
5 m  
5 cm  
x
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Replacing the brake light and taillight bulbs  
Remove the seat.  
BULB FOR BRAKE LIGHT:  
1
Turn the bulb socket [1] approx. 30° in a counterclockwise direction and pull  
it out of the taillight housing. Slightly press in the bulb, turn approx. 30° in  
a counterclockwise direction and remove it from the socket.  
Proceed in the reverse order to mount a new bulb.  
BULBS FOR THE TAILLIGHT:  
Remove the bulb socket [2] from the housing and pull the bulb out of the  
socket. Insert a new bulb and press the bulb socket all the way into the tail-  
2
light housing.  
Mount the seat.  
35  
Replacing the flasher bulbs  
Remove the screw on the back of the turn signal, carefully fold the lens [3]  
towards the motorcycle and remove. Turn the cap [4] approx. 15° in a coun-  
terclockwise direction and remove.  
4
3
Slightly depress the bulb, turn it approx. 30° counterclockwise and pull it out  
of the socket.  
To mount the lamp reverse the worksteps indicated above.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Cooling system  
The water pump in the engine ensures a forced circulation of the cooling liq-  
uid. When the engine is cold, the cooling liquid only circulates in the cylin-  
ders and cylinder heads. After the engine reaches the operating temperature  
(approx. 75°C, 167°F), the thermostat opens and the cooling liquid is also  
pumped through the aluminum radiator.  
Cooling is by means of the air stream. The lower the speed, the lower the cool-  
ing effect. Soiled cooling fins also impair the cooling effect.  
If, for example, slow urban traffic or waiting at a traffic light cause little or  
no air to stream through the radiator, the temperature of the cooling liquid  
will rise. The radiator fan [1] switches on when the cooling liquid reaches a  
temperature of 102°C (216°F). Additional air is blown through the radiator  
to prevent the cooling system from overheating.  
1
THE TEMPERATURE INDICATOR [2] WILL BEGIN TO BLINK AND THE RED COOL-  
ING LIQUID TEMPERATURE WARNING LAMP [3] WILL LIGHT UP WHEN THE COOL-  
ING LIQUID REACHES APPROX. 120°C (248°F), HAVING EXCEEDED THE NORMAL  
OPERATING TEMPERATURE. POSSIBLE CAUSES:  
– SLOW RIDING WITH LARGE LOADS AT A HIGHER AIR TEMPERATURE:  
IF POSSIBLE INCREASE YOUR RUNNING SPEED, SO THAT MORE AIR CAN BLOW  
THROUGH THE RADIATORS. SHOULD THE WARNING LIGHT STILL BE ON OFF  
AFTER 1500 METERS (1 MILE), STOP IMMEDIATELY, SWITCH OFF THE ENGINE  
AND LOOK FOR OTHER POSSIBLE CAUSES.  
2
3
– THE COOLING FAN ON THE RADIATOR IS NOT WORKING:  
THE COOLING FAN MUST BE RUNNING, WHEN THE COOLING LIQUID TEMPER-  
ATURE IS 120°C (248°F) AND THE IGNITION IS ON. IF THE FAN IS NOT WORK-  
ING, AND THERE APPEARS TO BE SUFFICIENT COOLING LIQUID, THE ONLY  
THING YOU CAN DO IS TO DRIVE ON TO YOUR NEAREST AUTHORIZED KTM  
WORKSHOP AT THE LEAST POSSIBLE ENGINE LOAD.  
36  
– TOO LITTLE COOLING LIQUID IN THE SYSTEM:  
CHECK WHETHER ANY COOLING LIQUID IS LEAKING OUT (ALSO ON THE BOT-  
TOM OF THE MOTORCYCLE).  
LET THE ENGINE COOL DOWN AND CHECK THE COOLING LIQUID LEVEL IN  
THE RADIATOR (SEE CHAPTER CHECKING THE COOLING LIQUID LEVEL IN THE  
RADIATOR). ONLY CONTINUE TO DRIVE IF THERE IS ENOUGH COOLING LIQ-  
UID IN THE SYSTEM. CONTACT AN AUTHORIZED KTM WORKSHOP TO HAVE  
THE ERROR ELIMINATED. YOU WILL DAMAGE THE ENGINE IF YOU CONTINUE  
TO DRIVE WHEN THE COOLING LIQUID TEMPERATURE WARNING LAMP IS ON.  
– EXCESSIVE USE OF THE CLUTCH AT SLOW SPEED  
4
A mixture of 50% antifreeze and 50% distilled water is used as the cooling  
liquid. How-ever, the anti-freeze protection must be at least -25° C  
(-13° F). Aside from antifreezing protection, this mixture also provides great  
corrosion protection which is why it must not be replaced by pure water.  
– FOR THE COOLING SYSTEM, USE ONLY HIGH-GRADE ANTIFREEZER (MOTOREX  
ANTI-FREEZE). USING LOWERGRADE ANTIFREEZE AGENTS, CAN CAUSE COR-  
ROSION AND COOLANT FOAMING.  
– MORE ANTIFREEZE MUST BE ADDED IF YOU PLAN TO TRAVEL TO A REGION  
WHERE TEMPERATURES ARE EXPECTED TO DROP BELOW -25°C (-13°F).  
Pressure induced by heating of the cooling liquid in the cooling system is con-  
trolled by a valve in the radiator cap [4]; a water temperature rising up to 125°  
C (257° F) is admissible, without fear of problems.  
Any excess cooling liquid caused by thermal expansion is conducted to the  
compensating tank [5]. It will be sucked back in as soon as the temperature  
in the cooling system drops.  
5
Checking the cooling liquid level in the compensating tank  
Check the level of the cooling liquid when the engine is cold. It should fall  
between the MIN and MAX marks on the compensating tank [6].  
Add cooling liquid (see above for mixture ratio) if the cooling liquid level drops  
below the MIN mark.  
If you need to add cooling liquid quite often, the cooling system may leak. If  
the compensating tank is empty, also check the cooling liquid level in the  
radiator. Have the cooling system checked by an authorized KTM  
workshop.  
6
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Checking the cooling liquid level in the radiator *  
Hold the radiator cap [1] with a cloth, carefully turn in a counterclockwise  
direction and remove. The radiator should be completely filled with cooling  
liquid; no air should be in the radiator.  
If any cooling liquid is missing, the cooling system is probably leaking. Have  
the cooling system checked at an authorized KTM workshop.  
1
IF POSSIBLE, CHECK THE COOLING LIQUID LEVEL WHEN THE ENGINE IS COLD.  
IF YOU NEED TO REMOVE THE RADIATOR CAP WHEN THE ENGINE IS HOT, HOLD  
THE CAP WITH A CLOTH AND OPEN SLOWLY, ALLOWING ANY EXCESS PRESSURE  
TO ESCAPE (DANGER OF SCALDING).  
IF MORE THAN 1 LITER OF COOLING LIQUID NEEDS TO BE ADDED, YOU WILL NEED  
TO BLEED THE COOLING SYSTEM.  
2
2
Bleeding the cooling system *  
Take off the left and right spoilers. To take off the spoilers, remove the screws  
[2] and [3] on each side.  
3
3
37  
Remove the bleeder screw [4] on the left side of the radiator.  
4
To completely bleed the cooling system, the motorcycle must be raised approx.  
50 cm in the front.  
Add cooling liquid until it runs out of the vent holes without bubbles and imme-  
diately mount the screw to prevent air from entering the radiator.  
Completely fill the radiator with cooling liquid. Mount the radiator cap and  
move the motorcycle into a horizontal position again. Now fill the compen-  
sating tank [5] with cooling liquid until it reaches a level between the MIN  
and MAX marks. Close the compensating tank and mount both spoilers.  
5
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Changing the basic position of the clutch lever  
The basic position of the clutch lever can be modified by turning the adjust-  
ing screw [1]. This lets you adjust the best clutch lever position for any hand  
size.  
To adjust, pull the clutch lever towards the front. Turning the adjusting screw  
in a clockwise direction will move the clutch lever away from the driver.  
Turning the adjusting screw in a counterclockwise direction will move the clutch  
lever towards the driver.  
ADJUSTMENT OF THE CLUTCH LEVER POSITION IS ONLY POSSIBLE WITHIN CER-  
TAIN LIMITS. ONLY TURN THE ADJUSTING SCREW MANUALLY AND NEVER APPLY  
EXCESSIVE FORCE.  
1
Checking the oil level of the hydraulic clutch  
The oil level should be between the "MIN" and "MAX" marks with the master  
cylinder in a horizontal position.  
If necessary, add SAE 10 biodegradable hydraulic oil (Motorex clutch fluid  
75), available from your authorized KTM workshop.  
KTM USES BIODEGRADABLE, HYDRAULIC MINERAL OIL TO ACTUATE THE HYDRAULIC  
CLUTCH. DO NOT MIX THIS OIL WITH ANY OTHER HYDRAULIC OIL. ALWAYS USE  
ORIGINAL KTM HYDRAULIC OIL (AVAILABLE FROM YOUR AUTHORIZED KTM WORK-  
SHOP) TO MAKE SURE YOUR CLUTCH OPERATES SMOOTHLY.  
NEVER REFILL WITH BRAKE FLUID.  
38  
Adjusting the handlebar tilt  
Loosen the screws [2]. Adjust the handlebar and tighten the screws to 20 Nm.  
Make sure the handlebar instruments do not touch the fuel tank when the  
handlebar is completely turned.  
2
TILTING THE HANDLEBAR TOO FAR BACK WILL REDUCE THE STEERING ANGLE  
SINCE THE HANDLEBAR INSTRUMENTS WILL TOUCH THE FUEL TANK  
IF THE HANDLEBAR IS TILTED TOO FAR BACK, THE HANDLEBAR INSTRUMENTS  
MAY DAMAGE THE FUEL TANK  
2
Checking and adjusting the throttle cable play *  
When starting to turn the throttle grip, you should feel an initial backlash of  
3-5 mm (0.12-0.2 in).  
To adjust, loosen the counter nut [3], turn the adjusting screw [4] as needed  
and tighten the counter nut again.  
Make sure that the throttle grip will return to the idle position automatically  
once you let go of it.  
To check the correctness of this setting, start the engine, turn the handlebar  
left and right, in both cases as far as it will go. This must not cause any changes  
in idling speed. Otherwise, you have to increase the backlash of the throttle  
cable.  
4
3
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Engine oil  
Automobile engine oil used to be used for four-stroke motorcycles before there  
were separate motorcycle specifications. Different technical developments made  
it necessary to have a separate specification for four-stroke motorcycles - the  
JASO T903 MA standard. Whereas car engines require long changing inter-  
vals, motorcycle engines require a higher power output at higher speeds. Most  
motorcycle engines also use the same oil to lubricate the transmission and  
the clutch. The JASO MA standard responds to these special requirements.  
Only use fully synthetic engine oils that meet the JASO MA quality require-  
ments (see information on the can).  
JASO T903 MA  
TEMPERATURE  
0°C  
32°F  
KTM recommends Motorex Power Synt 4T in the 10W/50 viscosity (for tem-  
peratures over 0°C, 32°F) or 5W/40 (for temperatures under 0°C, 32°F).  
5W/40  
10W/50  
Checking the engine oil level  
Check the engine oil level when the engine is warm (at least 4 bars on the  
temperature indicator light up). Allow the warm engine to run idle for approx.  
1 minute and place the motorcycle on a level surface (not on the side stand).  
Wait 20 seconds to allow the oil level in the inspection glass to adjust to the  
oil level in the oil tank. The oil level should be between the MIN and MAX  
marks, add engine oil if necessary.  
ALWAYS CHECK THE OIL LEVEL WHEN THE ENGINE IS WARM. A COLD ENGINE  
CAN DISTORT THE MEASURING RESULTS. ENGINE OIL EXPANDS WHEN HEATED,  
INCREASING THE OIL LEVEL.  
39  
Refilling engine oil  
To refill engine oil, take off the right spoiler [1] by removing the screws [2].  
1
2
2
Also remove the screws [3] and take off the spoiler.  
3
3
Unscrew the plug [4] and refill engine oil. Wait 20 seconds and check the oil  
level again. The quantity of oil between the MIN and MAX marks is 0.3 liter.  
Mount the plug and check the engine for leaks.  
Finally, mount the spoilers.  
4
– INSUFFICIENT AMOUNTS OF OR LOW-GRADE ENGINE OIL LEAD TO PREMA-  
TURE WEAR IN THE ENGINE.  
– DO NOT OVERFILL THE ENGINE CASE.  
– DO NOT UNDERFILL THE ENGINE CASE.  
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Changing the engine oil and the oil filter, cleaning the oil screen *  
NOTE: The LC8 engine has a dry-sump lubrication system. The engine oil is  
pumped from the oil sump in the engine case to the oil tank. The engine oil  
must also be drained from the oil tank during an oil change. Since many parts  
must be demounted for an oil change, we recommend having the engine oil  
changed by an authorized KTM workshop.  
During the guaranty period, the oil change must be performed by an author-  
ized KTM mechanic. Otherwise, the guarantee will become void.  
The engine oil change is to be carried out when the engine is still warm.  
1
2
AN ENGINE HAVING BEEN RUN WARM, AND THE ENGINE OIL IN IT IS VERY  
HOT – DO NOT BURN YOURSELF.  
Park the motorcycle on an even surface in an upright position. Place a ves-  
sel under the engine to catch the used oil and remove the oil drain plug [1].  
Remove the oil drain plug [1], take off the cap [2] and pull the oil sieve out  
of the engine case with a pair of pliers.  
3
Remove the oil filter cover [3] and pull the oil filter out of the engine case  
with circlip pliers (upside-down).  
40  
Remove the screws [4], loosen the screws [5] by 2 turns and remove the front  
spoiler towards the front.  
4
4
5
Remove the drain plug [6] on the oil tank and allow the oil to drain into a  
receptacle. Remove the screws [7] and tilt the oil return valve [8] to the side.  
8
7
6
7
Carefully pull the oil screen [9] out of the oil tank.  
Thoroughly clean the drain plugs, the cover and both oil screens. Clean all  
rubber seal rings and check for damage. Replace if necessary.  
9
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MAINTENANCE WORK ON CHASSIS AND ENGINE »  
Mount the oil drain plug on the engine with a new seal ring and tighten  
to 20 Nm.  
Slide the oil screen [1] into the guides in the oil pump housing with the TOP  
mark facing up. Make sure the form ring is in place and mount the cap [2].  
Tighten the screws to 10 Nm.  
2
1
Insert a new oil filter [3] in the engine case, grease the O-ring and mount the  
oil filter cover together with the O-ring. Tighten the screws to 6 Nm.  
ONLY USE ORIGINAL KTM OIL FILTERS. THE ENGINE CAN BE DAMAGED IF OTHER  
FILTERS ARE USED.  
3
41  
Mount the oil drain plug on the oil tank with a new seal ring and tighten  
to 20 Nm.  
Grease the seal ring [4] and carefully slide the oil screen into the oil tank.  
Position the oil return valve [5], mount the screws and tighten to 10 Nm.  
5
4
Add 2.5 liters (0.7 USgal) of fully synthetic engine oil meeting the JASO MA  
standard (e.g. Motorex Power Synt 4T) and mount the oil dipstick [6]. Start  
the engine, allow to run warm for 4 minutes and switch off the engine. Remove  
the oil dipstick and add engine oil up to the MAX mark (approx. 0.5 liters,  
0.13 USgal).  
Check the engine and the oil tank for oil leakage.  
6
Fit the slots in the front spoiler on the lower screws [7] and tighten. Apply  
Loctite 243 to the side screws [8] and tighten to 10 Nm.  
Finally, mount the spoiler (see Refilling the engine oil).  
7
8
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TROUBLESHOOTING »  
If you have your motorcycle serviced as set forth in this manual, no malfunctioning is to be expected. Nevertheless, if an error does  
arise, we recommend that you look for the error according to the following chart.  
Please note that you cannot perform all of the work yourself. If you are not sure, contact your KTM dealer.  
TROUBLE  
CAUSE  
REMEDY  
Engine does not start when the Operating error  
starter button is actuated  
Turn on the ignition, switch the gear to neutral and switch the  
emergency OFF switch on.  
Discharged battery  
Recharge the battery and investigate the causes for discharg-  
ing; contact an authorized KTM workshop.  
Blown fuse IGNITION.  
Main fuse is blown  
Replace fuse IGNITION  
Remove the front spoiler and replace the main fuse  
Defect ignition lock or emergency Check ignition lock and emergency OFF switch, contact an  
OFF switch  
authorized KTM workshop.  
Defect safe-starting system.  
Contact an authorized KTM workshop.  
The engine cranks only with A gear is engaged  
pulled clutch lever  
Shift the transmission to neutral.  
A gear is engaged and the side stand Shift the transmission to neutral.  
is still folded down  
Defect safe-starting system.  
Contact an authorized KTM workshop.  
Contact an authorized KTM workshop.  
42  
Engine cranks with gear engaged. Defect safe-starting system.  
Engine cranks but doesn’t start. Operating error  
Pay attention to starting off information (see driving instruc-  
tions).  
Blown fuse for the fuel pump  
Replace the fuel pump fuse  
Clutch not attached to the fuel line Connect the clutch to the fuel line  
The plug and socket connector on the Remove the panel and fuel tank, clean the plug and socket  
wiring harness is oxidized  
connector and spray with contact spray  
Error in the injection system  
Visit an authorized KTM workshop  
A gear is engaged and the side stand Switch to neutral gear  
is folded down  
Engine will not reach full power Air filter/fuel filter heavily soiled  
Have the air filter/fuel filter replaced at an authorized KTM  
workshop  
Error in the injection system  
Insufficient cooling liquid  
Visit an authorized KTM workshop  
Engine overheats  
Refill cooling liquid (see maintenace work), check cooling sys-  
tem for leaks  
Radiator fins are extremely dirty  
Foam forms in cooling system  
Clean radiator with water jet  
Replace cooling liquid, use antifreezer with brand name  
Run the radiator hose correctly or replace  
Radiator hose is kinked or  
damaged  
Thermostat defective  
Have the thermostat checked (opening temperature 75°C,  
167°F) or replaced; contact an authorized KTM workshop  
Blown fan fuse  
Replace fuse FAN  
Defect fan or thermoswitch for fan Contact an authorized KTM workshop.  
Air in the cooling system Bleed the cooling system (see Maintenance work)  
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TROUBLESHOOTING »  
TROUBLE  
CAUSE  
REMEDY  
FI lamp is blinking / lights up  
Error in the injection system  
Visit an authorized KTM workshop  
Engine stalls while driving  
High oil consumption  
No fuel  
Refuel  
Fuse for fuel pump has blown  
Replace fuse FUEL PUMP  
Engine oil level too high  
Check engine oil level when the engine is warm; correct if  
necessary  
Engine oil too thin (viscosity)  
Use thicker engine oil; see chapter „Engine oil“  
Replace fuse H/L BEAM POSITION.  
Headlight and position light fail Blown fuse  
Flasher lights, brake light, horn Blown fuse  
and multi-functional digital  
speedometer fail  
Replace fuse HORN BRAKELIGHT SPEEDO.  
Replace fuse CLOCK and set the clock.  
Time is not displayed or not  
correctly displayed  
Blown fuse, thus no continuous  
power supply  
The battery is discharged  
The ignition (power consumer) has- Recharge the battery according to the relevant instructions.  
n’t been switched off  
43  
The battery isn’t charged by the  
generator  
Voltage regulator and generator should be checked by an  
authorized KTM workshop.  
No values are visible in the  
multi-functional digital  
speedometer display.  
Blown fuse  
Replace fuse HORN BRAKELIGHT SPEEDO.  
The speed indication on the mul- Pickup cable is damaged or contacts Check the pickup cable for damage, visit an authorized KTM  
tifunctional digital speedometer on the cable connector have oxidized workshop  
is not working  
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TROUBLESHOOTING »  
The blink code indicates which component is affected by an error. This allows the error to be identified if no diagnosis tool is  
available.  
BLINK CODE SIGNAL / COMPONENT  
ERROR DESCRIPTION  
Malfunction  
ENGINE  
02  
06  
07  
09  
11  
12  
13  
14  
15  
17  
18  
24  
25  
33  
34  
37  
38  
41  
45  
46  
49  
53  
54  
65  
68  
69  
72  
Pulse generator  
Stalls  
Throttle sensor  
Output signal too low /high  
Output signal too low /high  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Stalls  
Sensor for 2nd throttle valve  
Intake manifold air pressure for sensor rear cylinder Output signal too low /high  
Intake manifold air pressure sensor for front cylinder Output signal too low /high  
Coolant temperature sensor  
Air temperature sensor  
Output signal too low /high  
Output signal too low /high  
Output signal too low /high  
Output signal too low /high  
Malfunction  
Ambient air pressure sensor  
Tilt angle sensor  
Lambda probe for rear cylinder  
Lambda probe for front cylinder  
Control unit voltage supply  
Side stand switch  
Malfunction  
Malfunction  
Short circuit to ground  
Malfunction  
Injection nozzle for rear cylinder  
Injection nozzle for front cylinder  
Ignition coil for rear cylinder  
Injection coil for front  
Malfunction  
Stalls  
Malfunction  
Stalls  
44  
Malfunction  
Stalls  
Fuel pump relay  
Short circuit to ground / positive  
Short circuit to ground / positive  
Short circuit to ground / positive  
Malfunction  
Stalls  
Lambda probe heater for rear cylinder  
Lambda probe heater for front cylinder  
Idle control motor  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Purge valve for carbon canister  
Secondary air valve  
Short circuit to ground / positive  
Short circuit to ground / positive or interruption Continues to run  
EEPROM error  
Malfunction  
Malfunction  
Malfunction  
Malfunction  
Continues to run  
Continues to run  
Continues to run  
Continues to run  
Vacuum hose for front cylinder is defective  
Vacuum hose for rear cylinder is defective  
Stepper motor for 2nd throttle valve  
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CLEANING »  
Regular cleansing and paintwork care are part of the maintenance work and help to maintain the value of your motorcycle.  
NEVER CLEAN THE MOTORCYCLE WITH A POWER WASHER OR A STRONG WATER JET, OTHERWISE THE PRESSURE WILL ALLOW WATER TO  
ENTER THE ELECTRIC COMPONENTS, PLUGS, CABLES, BEARINGS, ETC. WHICH CAN CAUSE MALFUNCTIONING OR CAN LEAD TO PREMATURE  
WEAR OF THESE COMPONENTS.  
– Before you wash your motorcycle, close the muffler openings.  
– Use warm water with a commercial detergent and sponge. Coarse dirt can be removed with a soft water jet. Areas that are heavily  
soiled can be sprayed with a motorcycle cleaner (e.g. Motorex 900) and cleaned with a brush.  
– After the motorcycle has been rinsed with a soft water jet, it should be dried by air pressure and a cloth. Then take a short drive  
until the engine has reached the working temperature and also use the brakes. Due to the heat, the water also evaporates at the  
unapproachable parts of the engine and the brakes.  
– After the motorcycle has cooled down, oil or lubricate all of the friction bearings and bearing positions and treat the chain with  
chain spray. Treat all bare areas (except brake disks) with a corrosion inhibitor (e.g. Motorex Protect & Shine).  
– The exhaust pipes can be polished with a chrome care product. The mufflers are made of stainless steel and should be treated with  
a suitable care product.  
To prevent failures in the electric system, you should treat the ignition lock, the emergency OFF switch, light switch and the socket  
connectors with contact spray.  
Treat all of the painted parts with a mild paint care product (e.g. Motorex Moto Polish).  
45  
CONSERVATION FOR WINTER OPERATION »  
In the event that the motorcycle is also used in winter and on roads where one has to expect salt spraying, you will have to take  
precautions against the aggressive road salt.  
– clean motorcycle thoroughly and let it dry  
– treat engine, swing arm, and all other bare parts (except for brake discs) with a wax-based anti-corrosion agent.  
KEEP ANTI-CORROSION AGENT FROM GETTING INTO CONTACT WITH THE BRAKE DISCS, FOR OTHERWISE THIS WILL SIGNIFICANTLY REDUCE  
THE BRAKING POWER.  
AFTER RIDES ON SALTED ROADS, CLEAN MOTORCYCLE THOROUGHLY WITH COLD WATER AND LET IT DRY WELL!  
STORAGE »  
If you plan to immobilize your motorcycle for a longer period of time, proceed as follows:  
– Run the tank empty to be able to add fresh fuel when starting up again.  
– Clean the motorcycle thoroughly (see CLEANING chapter).  
– Change the engine oil and the oil filter (old engine oil contains aggressive impurities).  
– Check the quantity of antifreeze and cooling liquid.  
– Remove and charge the battery (see Charging the battery chapter).  
– If possible, jack up the motorcycle to lift the wheels off the ground.  
– The storage site should be dry and not subject to larger temperature fluctuations.  
– Cover the motorcycle with a permeable cover or blanket. Do not use impermeable material since it will not allow and moisture to  
escape and will cause corrosion.  
DO NOT BRIEFLY RUN THE ENGINE OF AN IMMOBILIZED MOTORCYCLE SINCE THE ENGINE WILL NOT BECOME WARM ENOUGH AND ANY VAPOR  
PRODUCED DURING THE COMBUSTION PROCESS WILL CONDENSE AND CAUSE THE VALVES AND EXHAUST TO RUST.  
STARTING UP AFTER IMMOBILIZATION  
– Mount the charged battery (pay attention to the polarity).  
– Fill fresh fuel in the tank.  
– Inspect the motorcycle as you would before each start-up (see "Driving Instructions").  
– Go on a short, cautious test ride  
NOTE: before you store your motorcycle at the end of the season, check all parts for proper functioning and wear. If service, repairs or  
conversions are necessary, have them carried out while the motorcycle is immobilized (workshops are not fully utilized). This will help  
to avoid long waiting periods at the beginning of the season.  
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TECHNICAL SPECIFICATIONS – CHASSIS »  
CHASSIS  
990 SUPER DUKE  
Frame  
Tubular chrome-molybdenum-steel space frame  
WP Suspension – Up Side Down 4860 ROMA  
135 mm  
Fork  
Spring travel front  
Rear suspension  
Spring travel rear  
Front brake  
Rear brake  
Tires, front  
WP Suspension 4618 BAVP  
160 mm  
Disk brake, 2 perforated brake disks Ø 320 mm, fixed brake calipers  
Disk brake, perforated brake disk Ø 240 mm, floating brake caliper  
120/70 ZR17 M/C 58W  
Air pressure  
Road, driver only ....................................2,4 bar  
Road, with passenger..............................2,4 bar  
maximum payload ..................................2,4 bar  
Tires, rear  
180/55 ZR17 M/C 73W  
Air pressure  
Road, driver only ....................................2,4 bar  
Road, with passenger..............................2,6 bar  
maximum payload ..................................2,6 bar  
Fuel tank capacity  
Gear ratio – rear wheel  
Chain  
15 liters, 4 liters reserve  
17:38  
5/8 x 5/16” X-ring  
Lighting  
high beam ............................................H3 12V 55W (Sockel PK22s)  
low beam ..............................................H7 12V 55W (Sockel PX26d)  
position light front..................................12V 5W (Sockel W2,1x9,5d)  
indicator lamps .....................................LED  
46  
position light rear ..................................12V 5W (Sockel W2,1x9,5d)  
stoplight ...............................................12V 21W (Sockel BA15s)  
licens plate illumination .........................12V 5W (Sockel W2,1x9,5d)  
Battery  
maintenance-free battery 12V 11,2 Ah  
66,5°  
Steering head angle  
Wheel base  
1438 ± 10 mm  
855 mm  
Seat height, unloaded  
Ground clearance, unloaded  
Dry weight  
165 mm  
184 kg (406 lbs)  
200 kg (441.5 lbs)  
220 kg (485.6 lbs)  
380 kg (838.8 lbs)  
Max. axle load, front  
Max. axle load, rear  
Max. total weight  
STANDARD ADJUSTMENT - FORK  
STANADARD ADJUSTMENT-SHOCK ABSORBER  
990 SUPER DUKE  
WP 4860 ROMA  
9 N/mm  
990 SUPER DUKE  
WP 4618 BAVP  
Spring  
Spring  
160/185  
Air chamber length  
Fork oil  
110 mm  
SAE 5 (WP 4860.0211)  
BASIC SETTING  
SHOCK ABSORBER  
990 SUPER DUKE  
BASIC SETTING  
FORK  
990 SUPER DUKE  
Compression adjuster Low Speed (clicks) 25 20 10 15  
Compression adjuster (clicks)  
Rebound adjuster (clicks)  
Spring preload (turns)  
20 15 10 15  
Compression adjuster High Speed (turns) 2,5 2 2 1,5  
20 15 10 15  
Rebound adjuster (clicks)  
Spring preload (turns)  
22 17 10 5  
5
5
5
6
6
6
6
6
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TECHNICAL DATA - CHASSIS »  
TIGHTENING TORQUES – CHASSIS  
Collar bolt on front wheel spindle  
Collar nut wheel spindle rear  
AH bolt shock absorber top/bottom  
Collar nut for swing arm bolt  
AH bolts on subframe  
M24x1,5  
M25x1,5  
M14x1,5  
M19x1,5  
M8  
60 Nm  
90 Nm  
80 Nm  
130 Nm  
Loctite 243 + 25 Nm  
Loctite 243 + 25 Nm  
45 Nm  
AH bolts on back of footrest support  
Engine carrier bolts  
M8  
M10  
M8  
HH clamp bolts on top triple clamp  
HH clamp bolts on bottom triple clamp  
HH screw for steering head  
20 Nm  
M8  
15 Nm  
M20x1,5  
M8  
12 Nm  
HH clamp bolts on fork legs  
Collar bolts for handlebar clamps  
AH bolt for handlebar mount  
HH clamp bolts for steering stem  
Collar bolt front/rear brake disk  
HH bolts on front brake caliper  
HH bolts on handbrake cylinder  
HH bolts on footbrake cylinder  
AH bearing bolt for foot brake pedal, shift lever  
HH screw on cover plate for foot brake lever/shift mechanism  
Relay for shift shaft (on connecting support)  
Relay for shift shaft (on shift shaft)  
Gearshift rod attachment  
15 Nm  
M8  
20 Nm  
M10  
M8  
20 Nm  
20 Nm  
M8x1,25  
M10x1,25  
M6  
Loctite 243 + 30 Nm  
Loctite 243 + 45 Nm  
10 Nm  
M6  
Loctite 243 + 10 Nm  
Loctite 243 + 25 Nm  
Loctite 243 + 10 Nm  
Loctite 243 + 25 Nm  
Loctite 243 + 18 Nm  
Loctite 243 + 10 Nm  
Loctite 243 + 6 Nm  
Loctite 243 + 45 Nm  
Loctite 243 + 25 Nm  
Loctite 243 + 35 Nm  
Loctite 243 + 25 Nm  
Loctite 243 + 2 Nm  
Loctite 243 + 50 Nm  
20 Nm  
47  
M8  
M6  
M8  
M6  
M6  
HH bolts on foot brake pedal surface  
AH bolts for side stand bracket - engine  
HH bolts for side stand fixture - side stand bracket  
HH bolts for side stand mounting  
HH bolt for spring rest on side stand  
HH bolt for side stand switch  
HH nuts on rear sprocket bolts  
Drain plug on oil tank  
M5  
M10  
M10  
M10  
M8  
M4  
M10x1,25  
M12x1,5  
M8  
Exhaust nuts on manifold  
evenly, do not bend sheet metal  
8 Nm  
Exhaust clamps  
M8  
Exhaust clamps for ball joint  
AH bolts on tank cover  
M8  
35 Nm  
M5  
5 Nm  
AH/HH bolts on tank mounting  
Collar screws for in-tank pump  
AH screw on arm for tank support  
Collar screw for gas pressure shock absorber  
Seat fixing plate  
M6  
6 Nm  
M6  
6 Nm  
M10  
M6  
25 Nm  
6 Nm  
M5  
4 Nm  
Jerk damper bolt  
M10x1,25  
M19x1  
M5  
Loctite 243 + 50 Nm  
8 Nm  
HH nut for seat lock  
Chainguard  
5 Nm  
Chain sliding guard  
M5  
5 Nm  
Front spoiler  
M6  
Loctite 243 + 10 Nm  
8 Nm  
Taillight  
M6  
Other bolts on chassis  
M6  
10 Nm  
25 Nm  
45 Nm  
M8  
M10  
Other collar nuts on chassis  
M6  
15 Nm  
30 Nm  
50 Nm  
M8  
M10  
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TECHNICAL SPECIFICATIONS – ENGINE »  
ENGINE  
990 LC8  
Design  
Liquid-cooled, 2-cylinder 4-stroke engine with 75° V arrangement with balancer shaft and electric starter  
999 cm3  
Displacement  
Bore / Stroke  
Compression ratio  
Fuel  
101/62,4 mm  
11,5:1  
unleaded fuel with at least RON 95 (USA: Premium RON 91) *  
Valve timing  
Valve diameter  
Valve clearance, cold  
Crankcase bearing  
Conrod bearing  
Piston pin bearing  
Piston  
4 valves controlled over bucket tappet and 2 camshafts, camshaft drive with gears/chain  
Intake: 38 mm Exhaust: 33 mm  
Intake: 0,10 - 0,15 mm Exhaust: 0,25 - 0,30 mm  
Friction bearings (2 main bearings / 1 supporting bearing)  
Friction bearing  
Dual-fuel bearing  
Light alloy – forged  
Piston rings  
Engine lubrication  
Engine oil  
1 compression ring, 1 taper face ring, 1 single-piece oil scraper ring with spiral-type expander  
Dry sump with 2 trochoidal pumps (pressure pump and suction pump)  
SAE 5W/40, 10W/50 (Motorex Power Synt 4T) #  
Quantity of engine oil  
Primary drive  
Clutch  
approx. 3.1 liters during oil/filter change  
Straight-toothed spur wheels 35 : 67  
Multi-disc clutch in oil bath  
Transmission  
Gear ratio  
6-speed claw shifted  
1st gear 14:36  
2nd gear 16:30  
48  
3rd gear 20:30  
4th gear 21:27  
5th gear 23:26  
6th gear 25:26  
Ignition system  
Ignition timing  
Generator  
breakerless transistorized electronic ignition system with digital ignition advance  
Map-controlled via TPS  
12V 450W bei 6000 U/min  
Spark plug  
NGK DCPR 8 E  
Electrode distance  
Cooling system  
Cooling liquid  
Starting aid  
0,8 mm  
liquid cooled, permanent circulation of cooling liquid through water pump  
2.1 liters, 50% antifreeze, 50% water, at least –25° C  
electric starter  
#
*
PON / CLC  
87  
RON / ROZ  
91  
MON  
83  
JASO T903 MA  
91 Premium  
95  
87  
RON = Pump Octane Number  
CLC = Cost of Living Council  
RON = Research Octane Number  
ROZ = Research Oktan Zahl  
MON = Motor Octane Number  
TEMPERATURE  
0°C  
32°F  
5W/40  
10W/50  
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HEAD WORD INDEX »  
Page  
Page  
Footrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18  
Fuses for individual power consumers . . . . . . . . . . .33  
General information on KTM disk brakes . . . . . . . . .26  
General tips and warnings for starting the motorcycle .14  
Hand brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Head word index . . . . . . . . . . . . . . . . . . . . . . . . . . .49  
Helmet lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Holding strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Important LIMITED warranty and LIMITED guarantee  
information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Instructions for initial operation . . . . . . . . . . . . . . . .14  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
Jump start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32  
Main fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33  
Maintenance work on chassis and engine . . . . . . . . . .22  
Multi-functional digital speedometer . . . . . . . . . . . . .6  
Operation instruments . . . . . . . . . . . . . . . . . . . . . . . .5  
Periodic maintenance . . . . . . . . . . . . . . . . . . . . . . .20  
Rebound damping of fork . . . . . . . . . . . . . . . . . . . . .12  
Rebound damping of shock absorber . . . . . . . . . . . . .24  
Rebound damping of shock absorber . . . . . . . . . . . . .13  
Refilling engine oil . . . . . . . . . . . . . . . . . . . . . . . . .39  
Refilling front brake fluid . . . . . . . . . . . . . . . . . . . .27  
Refilling rear brake fluid . . . . . . . . . . . . . . . . . . . . .28  
Removing and remounting the battery . . . . . . . . . . .32  
Replacing the brake light and taillight bulbs . . . . . . .35  
Replacing the flasher bulbs . . . . . . . . . . . . . . . . . . .35  
Replacing the headlight lamp . . . . . . . . . . . . . . . . .34  
Running in the LC8 engine . . . . . . . . . . . . . . . . . . . .14  
Seat lock, removing the seat . . . . . . . . . . . . . . . . . .10  
Setting options in the display . . . . . . . . . . . . . . . . . . .7  
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Shifting/Riding . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Side stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Spring preload of the fork . . . . . . . . . . . . . . . . . . . . .12  
Spring preload on shock absorber . . . . . . . . . . . . . .13  
Starting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Starting the engine . . . . . . . . . . . . . . . . . . . . . . . . .16  
Stopping and parking . . . . . . . . . . . . . . . . . . . . . . . .18  
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Technical Data - Chassis . . . . . . . . . . . . . . . . . . . . .47  
Technical specifications – chassis . . . . . . . . . . . . . . .46  
Technical specifications – engine . . . . . . . . . . . . . . .48  
Tires, air pressure . . . . . . . . . . . . . . . . . . . . . . . . . .31  
Tool set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Accessories and payload . . . . . . . . . . . . . . . . . . . . .14  
Adjusting compression damping of fork . . . . . . . . . . .22  
Adjusting rebound damping of fork . . . . . . . . . . . . . .22  
Adjusting the basic position of the hand brake lever .27  
Adjusting the fork and shock absorber . . . . . . . . . . .22  
Adjusting the handlebar tilt . . . . . . . . . . . . . . . . . . .38  
Adjusting the headlight range . . . . . . . . . . . . . . . . . .34  
Adjusting the spring preload on the fork . . . . . . . . . .23  
Baggage loops . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31  
Bleeding the cooling system . . . . . . . . . . . . . . . . . .37  
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Chain maintenance . . . . . . . . . . . . . . . . . . . . . . . . .25  
Changing the basic position of the clutch lever . . . . .38  
Changing the basic position of the foot brake lever . .28  
Changing the engine oil and the oil filter, cleaning  
the oil screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40  
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . .32  
Chassis number, Type label . . . . . . . . . . . . . . . . . . . .5  
Check the following before each start . . . . . . . . . . . .15  
Checking and adjusting the throttle cable play . . . . . .38  
Checking the chain for wear . . . . . . . . . . . . . . . . . . .25  
Checking the chain tension . . . . . . . . . . . . . . . . . . .24  
Checking the cooling liquid level in the compensating tank . .36  
Checking the cooling liquid level in the radiator . . . .37  
Checking the engine oil level . . . . . . . . . . . . . . . . . .39  
Checking the front brake fluid level . . . . . . . . . . . . .27  
Checking the front brake pads . . . . . . . . . . . . . . . . .27  
Checking the oil level of the hydraulic clutch . . . . . . .38  
Checking the rear brake fluid level . . . . . . . . . . . . . .28  
Checking the rear brake pads . . . . . . . . . . . . . . . . . .28  
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45  
Clutch lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Combination switch . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Compression damping of fork . . . . . . . . . . . . . . . . .12  
Compression damping of shock absorber . . . . . . . . . .23  
Conservation for winter operation . . . . . . . . . . . . . . .45  
Cooling liquid temperature display . . . . . . . . . . . . . . .8  
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . .36  
Correcting the chain tension . . . . . . . . . . . . . . . . . .24  
Damping action during compression of shock absorber .13  
Dismounting and remounting the front wheel . . . . . .29  
Dismounting and remounting the rear wheel . . . . . . .30  
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6  
Driving instructions . . . . . . . . . . . . . . . . . . . . . . . . .15  
Emergency OFF tip switch, light switch, starter tip switch . .9  
Engine number, engine type . . . . . . . . . . . . . . . . . . . .5  
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39  
Filler cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Foot brake pedal . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
49  
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50  
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KTM Group Partner  
KTM-Sportmotorcycle AG  
A–5230 Mattighofen  
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