Briggs Stratton 430447 User Manual

Operator’s Manual  
Vanguard  
Gasoline  
Model 430447  
433447  
580447  
583447  
589447  
ECopyright Briggs & Stratton Corporation  
Form No. 277108-9/06  
Printed in U.S.A.  
BRIGGSandSTRATTON.com  
Milwaukee, Wisconsin 53201 U.S.A.  
SAFETY  
WARNING  
WARNING  
Gasoline and its vapors are extremely  
flammable and explosive.  
Starting engine creates sparking.  
Sparking can ignite nearby flammable  
gases.  
Fire or explosion can cause severe burns  
or death.  
Explosion and fire could result.  
WHEN ADDING FUEL  
If there is natural or LP gas leakage in area, do not start  
Turn engine OFF and let engine cool at least 2 minutes  
engine.  
before removing gas cap.  
Do not use pressurized starting fluids because vapors are  
Fill fuel tank outdoors or in well-ventilated area.  
flammable.  
Do not overfill fuel tank. Fill tank to approximately 1-1/2  
inches below top of neck to allow for fuel expansion.  
Keep gasoline away from sparks, open flames, pilot lights,  
heat, and other ignition sources.  
WARNING  
Check fuel lines, tank, cap, and fittings frequently for cracks  
or leaks. Replace if necessary.  
Running engines produce heat. Engine  
parts, especially muffler, become ex-  
tremely hot.  
WHEN STARTING ENGINE  
Make sure spark plug, muffler, fuel cap and air cleaner are in  
Severe thermal burns can occur on  
contact.  
place.  
Do not crank engine with spark plug removed.  
If fuel spills, wait until it evaporates before starting engine.  
Combustible debris, such as leaves,  
grass, brush, etc. can catch fire.  
If engine floods, set choke to OPEN/RUN position, place  
throttle in FAST and crank until engine starts.  
Allow muffler, engine cylinder and fins to cool before  
WHEN OPERATING EQUIPMENT  
touching.  
Do not tip engine or equipment at angle which causes  
Remove accumulated combustibles from muffler area and  
gasoline to spill.  
cylinder area.  
Do not choke carburetor to stop engine.  
Install and maintain in working order a spark arrester before  
using equipment on forest-covered, grass-covered,  
brush-covered unimproved land. The state of California  
requires this (Section 4442 of the California Public  
Resources Code). Other states may have similar laws.  
Federal laws apply on federal land.  
WHEN TRANSPORTING EQUIPMENT  
Transport with fuel tank EMPTY or with fuel shut-off valve  
OFF.  
WHEN STORING GASOLINE OR EQUIPMENT  
WITH FUEL IN TANK  
Store away from furnaces, stoves, water heaters or other  
appliances that have pilot light or other ignition source  
because they can ignite gasoline vapors.  
WARNING  
Rotating parts can contact or entangle  
hands, feet, hair, clothing, or accessories.  
Traumatic amputation or severe lacera-  
tion can result.  
WARNING  
Operate equipment with guards in place.  
Keep hands and feet away from rotating parts.  
Tie up long hair and remove jewelry.  
Engines give off carbon monoxide, an  
odorless, colorless, poison gas.  
Breathing carbon monoxide can cause  
nausea, fainting or death.  
Do not wear loose-fitting clothing, dangling drawstrings or  
items that could become caught.  
Start and run engine outdoors.  
Do not start or run engine in enclosed area, even if doors or  
windows are open.  
3
SAFETY  
WARNING  
WARNING  
Unintentional sparking can result in  
fire or electric shock.  
If engine is warm DO NOT remove radiator  
cap.  
Escaping steam can cause burns.  
Unintentional start-up can result in  
entanglement, traumatic amputation,  
or laceration.  
Do not touch hot radiator, or open reservoir when engine is  
running  
Allow engine to cool before removing radiator cap, changing,  
or adding coolant.  
BEFORE PERFORMING ADJUSTMENTS OR  
REPAIRS  
WARNING  
Disconnect spark plug wire and keep it away from spark  
plug.  
Disconnect battery at negative terminal.  
Never remove radiator cap or radiator  
reservoir cap while the engine is hot or  
running. Severe thermal burns or injury  
can occur by escaping steam or hot  
engine coolant.  
WHEN TESTING FOR SPARK  
Use approved spark plug tester.  
Do not check for spark with spark plug removed.  
Stop engine and allow to cool before removing radiator or  
reservoir cap.  
WARNING  
To remove reservoir cap after engine is cool, place a thick  
cloth over cap and remove it slowly.  
Briggs & Stratton does not approve or authorize the use of  
these engines on 3-wheel All Terrain Vehicles (ATVs), motor  
bikes, fun/recreational go-karts, aircraft products or vehicles  
intended for use in competitive events. Use of these engines in  
such applications could result in property damage, serious  
injury (including paralysis), or even death.  
To remove radiator cap after engine is cool, place a thick  
cloth over cap and rotate it slowly counter-clockwise to the  
first stop. Pressurized steam may emit from the cap, stand  
back to avoid injury. Once all pressure is released, rotate cap  
counter-clockwise while pushing down on cap to remove.  
ENGINE INFORMATION  
TECHNICAL INFORMATION  
GENERAL INFORMATION  
ENGINE MODEL  
Engine Power Rating Information  
The gross power rating for individual gas engine models is labeled  
in accordance with SAE (Society of Automotive Engineers) code  
J1940 (Small Engine Power & Torque Rating Procedure), and  
rating performance has been obtained and corrected in  
This is a three cylinder, water cooled engine.  
MODEL 430447, 433447  
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 mm (2.68 in.)  
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 mm (2.52 in.)  
Displacement . . . . . . . . . . . . . . . . . . . . . . 697 cc (42.5 cu. in.)  
MODEL 580447, 583447, 589447  
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 mm (2.834 in.)  
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 mm (3.07 in.)  
Displacement . . . . . . . . . . . . . . . . . . . . . . 953 cc (58.1 cu. in.)  
accordance with SAE J1995 (Revision 2002-05). Actual gross  
engine power will be lower and is affected by, among other things,  
ambient operating conditions and engine-to-engine variability.  
Given both the wide array of products on which engines are  
placed and the variety of environmental issues applicable to  
operating the equipment, the gas engine will not develop the rated  
gross power when used in a given piece of power equipment  
(actual “on-site” or net horsepower). This difference is due to a  
variety of factors including, but not limited to, accessories (air  
cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.),  
application limitations, ambient operating conditions (temperature,  
humidity, altitude), and engine-to-engine variability. Due to  
manufacturing and capacity limitations, Briggs & Stratton may  
substitute an engine of higher rated power for this Series engine.  
TUNE-UP SPECIFICATIONS  
Spark plug gap . . . . . . . . . . . . . . . . . . . . . 0.76 mm (0.030 in.)  
Valve clearance (check when engine is cold).  
Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.18 mm (0.007 in.)  
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.18 mm (0.007 in.)  
4
ENGINE INFORMATION  
ENGINE PARTS  
2
1
3
7
16  
15  
14  
4
13  
5
8
9
12  
6
11  
10  
10  
1. Thermostat  
2. Oil filler cap  
3. Ignition coil  
10. Oil drains  
11. Oil filter  
12. Dipstick  
4. Electric starter  
5. Oil pan  
13. Oil pressure sending unit  
14. Carburetor  
6. Alternator  
7. Spark plug  
15. Engine Date Code  
xxxxxxxxx  
8. Coolant temperature sending unit  
9. Governor lever  
16. Engine Model & Type number  
xxxxxx xxxx-xx  
5
OIL  
OIL CAPACITY  
Oil capacity, including oil filter, is 3.5 quarts or 3.3 liters.  
TYPE OF OIL TO USE  
SAE Viscosity Grades  
Use high quality detergent oil classified “For Service SH, SJ” or  
higher.  
Do not use special additives with recommended oils.  
Do not mix oil with gasoline.  
Choose a viscosity according to the table opposite.  
*
CAUTION: This engine is shipped from Briggs &  
Stratton without oil. Check oil level before starting  
engine. If you start the engine without oil, the engine  
will be damaged beyond repair and will not be  
covered under warranty.  
10  
32  
0
50  
70  
21  
90  
32  
110  
43  
-30  
-34  
-10  
-23  
°F  
°C  
-12  
10  
STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE  
*
A synthetic 5W-30 oil may be used.  
CHECKING AND ADDING OIL  
Check oil level before starting the engine.  
Check level daily, or after every eight (8) hours.  
Keep oil level at FULL.  
Note: After filling with or changing oil, start and run engine at  
idle for 5 minutes. Shut engine off. Wait 3 minutes and check oil  
level. Add oil, if required, to bring level to Full mark on dipstick.  
Do not overfill.  
OIL FILL  
Bring oil  
level to F  
mark  
on dipstick.  
[2]. Remove dipstick and wipe  
with clean cloth.  
[4]. If oil is required, remove dipstick to allow  
proper venting and pour oil slowly. Fill to  
FULL line on dipstick. Recheck.  
[3]. Then replace dipstick, and  
remove to check oil level.  
[1]. Place equipment level.  
Clean around oil fill.  
CAUTION: When filling engine or adding oil.  
To prevent engine damage upon  
start-up, proper venting is necessary  
when filling engine with oil or adding oil.  
Note  
Clearance  
In addition to ensuring a level engine,  
removing dipstick, and pouring oil  
slowly, there must be clearance  
between the oil fill device and the oil fill  
hole in the valve cover as shown. This  
clearance is necessary to permit  
venting when filling, which prevents oil  
from overrunning into breather.  
Note  
Clearance  
[5]. Replace dipstick firmly.  
6
FUEL  
TYPE OF FUEL TO USE  
WARNING  
Use clean, fresh, unleaded gasoline with a minimum of 85 octane.  
Fresh fuel prevents gum from forming in the fuel system or on  
essential carburetor parts. Purchase fuel in quantity that can be  
used within 30 days. In countries other than U.S.A., leaded  
gasoline may be used if it is commercially available and unleaded  
is unavailable.  
Do not use gasoline which contains Methanol.  
Do not mix oil with gasoline.  
Fill fuel tank outdoors or in well-ventilated area, away  
from sparks, open flames, pilot lights, heat, and other  
ignition sources.  
If fuel spills, wait until it evaporates before starting  
THIS ENGINE IS CERTIFIED TO OPERATE ON GASOLINE.  
engine.  
Turn engine OFF and let engine cool at least 2 minutes  
before removing gas cap.  
ADDING FUEL  
[1]. Remove cap. Fill tank to approximately 1-1/2 inches  
below top of neck to allow for fuel expansion. Be careful  
not to overfill.  
[2]. Replace cap before starting.  
[3]. Check for fuel leaks at fuel filter, carburetor, fuel pump,  
fuel pipe, etc.  
COOLANT  
SPECIFICATIONS  
This engine is water cooled.  
Do not touch radiator or open  
WARNING  
radiator cap, or open reservoir  
when engine is hot or running.  
A 50/50% mixture is required of phosphate-free antifreeze and  
tap water for heat dissipation, rust resistance and lubrication.  
Allow engine to cool before  
changing or adding coolant.  
CHANGING & ADDING COOLANT  
Fill radiator to bottom of fill cap seat and between FULL and LOW  
in reservoir, if so equipped.  
GAUGES  
TYPICAL GAUGES (If Equipped)  
COOLANT TEMPERATURE GAUGE  
FUEL GAUGE  
Indicates coolant temperature  
when the starter switch is ON.  
Normal range 80° 90° C  
(175° 195° F).  
To minimize condensation,  
keep fuel tank full.  
Dangerous range above 105° C  
(220° F).  
HOUR METER  
FUEL SHUT-OFF  
Indicates the total number of  
hours the engine has been run.  
Open valve before starting  
engine.  
ON  
POSITION  
CAUTION: To prevent leaking, close fuel shut-  
off valve when engine is transported.  
7
GAUGES  
TYPICAL PANEL LIGHTS (If Equipped)  
WARNING LIGHTS (Typical)  
Ignition light  
The ignition light comes on when the starter switch is turned to  
the ON position, and should be out while engine is running. If  
ignition light goes out when starter switch is turned to the ON  
position, check fuse or bulb.  
Engine oil pressure light  
Temperature light  
The engine oil pressure light comes on when the starter  
switch is turned to the ON position and should be out while  
engine is running. If oil pressure light comes on while engine is  
running, stop engine immediately. Check oil level or electrical  
system.  
If temperature light comes on, engine is overheating. Check:  
S
coolant level;  
debris on radiator or any restriction to air flow.  
S
Charge light  
See an Authorized Briggs & Stratton 3/LC Service Dealer if  
necessary for operation repair.  
The charge light comes on when the starter switch is turned to  
the ON position, but should be out while engine is running. If  
charge light comes on while engine is running, check electrical  
system.  
STARTING  
STARTING IN COLD WEATHER:  
Use correct type of oil for expected starting  
After engine has started, release key, which will return  
temperature. (See Oil.)  
to ON position.  
Remove external equipment/engine loads. (See  
Allow engine to warm up several seconds to several  
equipment operating instructions.)  
minutes, depending on outside temperature.  
Periodically remove any debris buildup from the  
Gradually open choke.  
machine (See Maintenance.)  
Use fresh gasoline, which has higher volatility to  
Open fuel shut-off valve, if equipped, before starting  
improve starting.  
engine.  
For maximum performance and life, operate engine  
Pull choke and move throttle to FAST position.  
with choke in OPEN and throttle in FAST.  
CAUTION: Before starting engine for  
the first time, charge battery as the  
equipment manufacturer recommends.  
Failure to do so, may cause damage to  
the engine.  
WARNING  
The manufacturer of equipment on which  
this engine is installed specifies top speed at  
which engine will be operated. DO NOT  
EXCEED this speed.  
WARNING  
Do not use pressurized starting fluids.  
Vapors are flammable.  
Keep hands and feet clear of rotating  
machinery.  
8
STARTING & STOPPING  
TO START ENGINE  
Typical starter switch  
Typical throttle control  
[2]. Open throttle control  
slightly.  
[1]. Insert key into starter  
switch at OFF position.  
[3]. Turn key to START.  
CAUTION: To prolong starter life, use short starting cycles, not to  
exceed 15 secs/min. Extended cranking can damage starter motor.  
Follow equipment manufacturer’s recommendations, if any.  
[5]. NOTE: If engine does not start  
immediately follow below:  
PULL  
TO CHOKE  
CHOKE OPERATION/ENGINE WARM-UP  
If engine does not start immedi-  
ately, pull choke.  
Typical starter switch  
After starting, allow engine to  
warm up a few minutes before  
[4]. When engine starts, release key,  
which will return to ON position.  
applying load. Open choke grad-  
ually when applying load.  
Typical choke control  
TO STOP ENGINE  
CAUTION:  
Do not move choke control  
to CHOKE to stop engine.  
Backfire or engine damage  
may occur.  
[2]. Turn key to  
OFF.  
Always remove  
key and store  
out of reach of  
children.  
Typical throttle control  
[1]. Move throttle to SLOW.  
Allow engine to run for  
short time to cool down.  
Typical starter switch  
9
MAINTENANCE  
REGULAR MAINTENANCE WILL IMPROVE THE PERFORMANCE AND EXTEND THE LIFE OF THE ENGINE.  
MORE FREQUENT SERVICE IS REQUIRED WHEN OPERATING IN ADVERSE CONDITIONS.  
See an Authorized Briggs & Stratton 3/LC Dealer for service. Use only genuine Briggs & Stratton Parts. Other parts may not  
perform as well, may damage the engine, and may result in injury. In addition, use of other parts may void your warranty.  
DAILY CHECKS  
Task  
Perform task at  
hourly or calendar  
interval.  
OIL  
Before starting engine, check oil for correct level.  
See page 6 of this manual for instructions on checking  
and adding oil.  
Check oil level  
4
CAUTION: Used oil is a hazardous waste prod-  
uct. Dispose of used oil properly. Do not discard with  
household waste. Check with your local authorities,  
service center, or dealer for safe disposal/recycling  
facilities.  
Check for  
oil leaks  
4
Change oil and  
oil filter  
4*  
Check coolant  
Change coolant  
Check fan belt  
4
CLEANING DEBRIS  
4
Daily or before every use, clean accumulated debris from  
engine. Keep linkage, springs and controls clean.  
4
Service  
air cleaner  
4*  
4**  
Engine parts should be kept  
WARNING  
clean to reduce the risk of  
overheating and ignition of  
accumulated debris.  
Check valve  
clearance  
4
Check battery  
electrolyte  
4
CAUTION: Do not use water to clean engine  
parts. Water could contaminate fuel system. Use a  
brush or dry cloth.  
Change  
spark plugs  
4
Change fuel filter  
4
Clean  
spark arrestor  
(if equipped)  
4
MUFFLER  
Before running engine, clean  
muffler and manifold areas to  
remove all grass and com-  
bustible debris.  
Depending on use, this may  
need to be performed more  
often.  
WARNING  
*
Perform first maintenance operation after 50  
hours. All subsequent maintenance performed at this  
interval, unless specified. Service more often when  
operating under heavy load or in high temperatures.  
** Replace after every 600 hours of operation. Service  
more often when operating under heavy load or in high  
temperatures.  
10  
MAINTENANCE  
DAILY CHECKS continued  
COOLANT  
WARNING  
Never remove radiator cap or radiator reservoir  
cap while the engine is hot or running. Severe  
thermal burns or injury can occur by escaping  
steam or hot engine coolant.  
Coolant level should be between FULL and LOW when  
engine is cold. If reservoir is dry, it must be filled along with  
radiator .  
Check coolant level when engine is cold.  
If engine is warm DO NOT remove radiator cap.  
Normal water temperature  
gauge should read between  
175° and 195° F (80° and 90° C)  
when engine is running.  
Stop engine and allow to cool before removing radiator or  
WARNING  
reservoir cap.  
To remove reservoir cap after engine is cool, place a thick  
cloth over cap and remove it slowly.  
If water temperature rises  
above 220° F (105° C), idle  
engine down for a while. Then stop engine. Once engine  
is cooled, check coolant level, fan belt tension and  
clogged radiator fins.  
To remove radiator cap after engine is cool, place a thick  
cloth over cap and rotate it slowly counter-clockwise to  
the first stop. Pressurized steam may emit from the cap,  
stand back to avoid injury. Once all pressure is released,  
rotate cap counter-clockwise while pushing down on cap  
to remove.  
REGULAR MAINTENANCE  
CHANGING OIL  
WARNING  
[1]. Place engine level.  
[2]. Disconnect battery at negative terminal, and discon-  
nect spark plug wires.  
[3]. With engine OFF but still warm remove oil drain plug  
and drain oil into appropriate receptacle.  
Disconnect spark plug wires and keep it away from spark  
plugs.  
Disconnect battery at negative terminal.  
[4]. Reinstall drain plug and torque to 352 kg-cm  
(25.5 ft-lb).  
[5]. Refill engine with new oil. Fill to FULL mark on  
dipstick with new oil. Replace oil cap.  
Caution: Do not overfill.  
[6]. Start and run engine at idle for 5 minutes.  
[7]. Stop engine, and wait 3 minutes. Then re-check oil  
level.  
OIL FILTER  
[8]. If required, add oil to bring level to F mark on dipstick.  
OIL DRAIN  
[9]. Check for leaks.  
OIL DRAIN  
11  
MAINTENANCE  
REGULAR MAINTENANCE continued  
CHANGING OIL FILTER  
[1]. Perform this maintenance during oil change main-  
tenance. Drain engine oil as described for oil  
change, and remove oil filter.  
[2]. Before installing new filter, apply to filter gasket  
fresh, clean oil.  
[3]. Screw filter on by hand until gasket contacts oil  
filter adapter. Tighten 1/2 to 3/4 turn more.  
OIL FILTER  
[4]. Add fresh oil. Follow steps as described for oil  
change.  
OIL DRAIN  
OIL DRAIN  
[5]. Check for oil leaks around filter.  
AIR CLEANER  
Note: Air cleaner may be supplied by equipment manufacturer.  
Cartridge  
To clean cartridge, gently tap on end with handle of  
screwdriver. Replace cartridge if very dirty or damaged.  
AIR  
CLEANER  
BODY  
CAUTION: Do not use pressurized air or solvents  
to clean cartridge. Pressurized air can damage  
cartridge; solvents will dissolve cartridge.  
CARTRIDGE  
COVER  
[1]. Unlock clamps and remove cover.  
[2]. Remove cartridge from air cleaner body.  
[3]. Carefully clean out air cleaner cover.  
[4]. Install cartridge in body.  
CLAMPS  
[5]. Install cover and lock clamps.  
SPARK PLUG  
Check and re-gap spark plugs if required.  
Replace if damaged.  
Use an approved spark tester to check for spark.  
0.76 mm (0.030”)  
WIRE GAGE  
Note: In some areas,  
local law requires using  
resistor spark plug to  
suppress ignition sig-  
nals. If this engine was  
originally equipped with  
resistor spark plug, use  
same  
type  
for  
replacement.  
12  
MAINTENANCE  
VALVE CLEARANCE  
With No. 1 piston at TDC of compression stroke, check valve  
clearances for cylinders shown in chart below. Rotate crank-  
shaft 360° clockwise to check remaining valves. Adjust in  
same order, if required.  
Note: If engine is running normally, this check and adjustment  
may be omitted.  
Piston Position  
Cylinder  
Int  
1
D
D
2
3
D
No. 1 piston at TDC, of compres-  
sion stroke  
Exh  
Int  
D
D
Rotate Crankshaft 360° clockwise  
Exh  
D
[1]. Loosen adjusting lock nut.  
[2]. Using a wrench to hold adjusting lock nut, adjust with  
screwdriver. Determine clearance using a feeler gauge.  
[3]. While holding screw driver in place, torque adjusting  
lock nut.  
Valve clearances (cold):  
SCREW  
DRIVER  
WRENCH  
Int  
Exh  
0.18 mm (0.007 in.)  
0.18 mm (0.007 in.)  
FEELER  
GAUGE  
Adjusting lock nut torque: 110 kg-cm (95 in-lbs.)  
Check valve cover gasket for leakage. Replace if required.  
Torque valve cover nuts to 55 kg-cm (48 in-lbs.)  
FUEL FILTER  
WARNING  
[1]. Disconnect spark plug wires and keep away from  
spark plugs.  
DIRECTION OF FUEL FLOW  
[2]. When replacing fuel  
filter, ensure clamps  
are tight and fuel  
flows as shown.  
FUEL TANK  
SIDE  
Drain fuel tank or close fuel shut-off valve  
before replacing fuel filter. Otherwise, fuel can  
leak out, creating a fire/explosion hazard.  
CARBURETOR  
SIDE  
FAN BELT  
Check condition of fan belt.  
Replace if damaged or worn.  
BELT  
To check for correct fan belt tension  
When 10 kg (22 lbs.) of force is pressed at center of span  
between fan and alternator, there should be 10 to 12 mm  
(3/8 1/2 in.) of belt movement.  
13  
MAINTENANCE  
To adjust for correct tension  
HANDLE  
[1]. Loosen the 2 bolts ( A and B ).  
BELT  
[2]. Place a handle (or similar object) between the  
alternator and engine cylinder block. Then move the  
alternator towards the outside of the engine, until the  
fan belt deflection conforms to the specified value.  
Specified fan belt deflection:  
A
10 to 12mm / 10kg (3/8 to 1/2 in. / 22lbs.)  
[3]. Temporarily tighten the 2 bolts ( A and B ) to fix the  
alternator. Then remove the handle. Check fan belt  
deflection. If it is within specifications, permanently  
B
tighten the 2 bolts ( A and B ) as given below. If not,  
repeat the above adjustment procedure.  
Specified tightening torque:  
A : 195 kg-cm (170 in-lbs)  
B : 622 kg-cm (45 ft-lbs)  
Check the fan belt deflection again.  
ADJUSTMENTS  
CONTROL ADJUSTMENTS  
WARNING  
If engine is hard to start or acceleration is uneven, check  
control operation and adjust if required as described  
below:  
[1]. Move throttle control to FAST position.  
[2]. Pull choke control to CHOKE position.  
BEFORE PERFORMING ADJUSTMENTS OR  
REPAIRS  
Disconnect spark plug wire and keep it away from spark  
PULL  
TO CHOKE  
plug.  
Disconnect battery at negative terminal.  
THROTTLE  
WIRE AND  
LEVER  
CASING  
Typical throttle and choke controls  
[3]. Loosen casing clamp screw, then move wire and casing  
and engine choke lever in direction of arrow, until choke  
valve is completely closed.  
And/Or  
[4]. Move wire and casing and engine throttle lever in  
direction of arrow, until it touches high speed screw.  
CASING  
CLAMP  
HIGH SPEED  
SCREW  
SCREW  
[5]. Tighten casing clamp screw.  
CHOKE LEVER  
Choke and throttle control adjustment  
14  
ADJUSTMENTS  
CARBURETOR ADJUSTMENTS  
Differences in fuel, temperature, altitude or load may require  
minor carburetor adjustment. Air cleaner and air cleaner cover  
must be assembled to carburetor before starting engine.  
CARBURETOR  
THROTTLE  
LEVER  
IDLE  
MIXTURE  
VALVE  
The carburetor on this engine is low emission. It is equipped  
with an idle mixture valve with a limiter (see inset), which allows  
some adjustment, and an idle speed adjustment screw.  
WITH LIMITER  
Before adjustment, start and warm up engine approxi-  
mately 5 minutes.  
[1]. Place throttle control in IDLE or SLOW position.  
FUEL  
DRAIN  
PLUG  
IDLE SPEED  
SCREW  
[2]. Rotate carburetor throttle lever against idle speed screw  
and hold.  
[3]. Adjust idle speed screw to obtain equipment manufac-  
turer’s specified idling speed.  
Note: Engines operated at approx. 900 to 1500 m. (3000 to  
5000 ft.) or above sea level may require a high altitude carbure-  
tor main jet. If erratic performance is observed, contact an Au-  
thorized Briggs & Stratton 3/LC Service Dealer for a high alti-  
tude carburetor main jet.  
[4]. Turn idle mixture valve with limiter midway between  
limits.  
15  
SERVICE  
PARTIAL LIST OF GENUINE BRIGGS & STRATTON PARTS  
Part  
Part No.  
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100028  
Oil filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491056  
Oil filter (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820314  
Air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820263  
Resistor spark plug  
You may locate your nearest Authorized Briggs & Stratton  
3/LC Service Dealer by calling 1-800-233-3723.  
430447, 433447 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491055  
580447, 583447, 589447 . . . . . . . . . . . . . . . . . . . . 496018  
Spark tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19400  
Fuel filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 821026  
Gas additive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5041  
The illustrated shop manual shown here  
includes common specifications and  
detailed information covering adjust-  
ment, tune-up and repair of B&S three  
cylinder, 4 cycle engines. It is available  
from an Authorized Briggs & Stratton  
Service Dealer.  
SERVICE  
See an Authorized Briggs & Stratton 3/LC Service Dealer.  
Each one carries a stock of Genuine Briggs & Stratton 3/LC  
Parts and is equipped with special service tools. Only dealers  
advertising as Authorized Briggs & Stratton 3/LC Service  
Dealers are required to meet Briggs & Stratton standards.  
Part No. MS-0750  
When you purchase equip-  
ment powered by a Briggs &  
Stratton engine, you are assu-  
red of highly skilled, reliable  
service at any Authorized  
Service Dealers worldwide.  
Look for these signs wherev-  
er Briggs & Stratton service is  
offered.  
STORAGE  
Engines stored over 30 days need special attention.  
[1]. To prevent gum from forming in fuel system or on  
essential carburetor parts:  
[2]. While engine is still warm, change oil.  
[3]. Remove spark plugs and pour about 30 ml (1 oz.) of  
engine oil into each cylinder. Replace spark plugs and  
crank slowly to distribute oil.  
a) if fuel tank contains oxygenated or reformulated  
gasoline (gasoline blended with an alcohol or an ether),  
run engine until it stops from lack of fuel, or b) if fuel tank  
contains gasoline, either run engine until it stops from lack  
of fuel, or add a gasoline additive to the gas in the tank.  
(See parts list. Single-use pouches of gas additive are  
available from your service dealer.) If you use a gas  
additive, run the engine for several minutes to circulate the  
additive through the carburetor. Then, engine and fuel can  
be stored up to 24 months.  
[4]. Clean engine of surface debris, chaff or grass.  
[5].  
Store in a clean, dry area. Do  
not store in same area as a  
stove, furnace, water heater, or  
other appliance that uses a pilot  
light or has a device that can  
create a spark.  
WARNING  
16  
For Model Series 430447, 433447, 580447 & 583447  
which are less than 19 Kw  
Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB)  
and the United States Environmental Protection Agency (U.S. EPA)  
Emissions Control System Warranty Statement (Owner’s Defect Warranty Rights and Obligations)  
EMISSIONS CONTROL WARRANTY COVERAGE IS APPLICABLE TO  
CERTIFIED MODEL YEAR 2002 AND LATER ENGINES, WHICH ARE PUR-  
CHASED AND USED IN CALIFORNIA, AND TO CERTIFIED MODEL YEAR  
2002 AND LATER ENGINES, WHICH ARE PURCHASED AND USED ELSE-  
WHERE IN THE UNITED STATES.  
California and United States Emissions Control Defects Warranty Statement  
The California Air Resources Board (CARB), U.S. EPA and B&S are pleased  
to explain the Emissions Control System Warranty on your model year 2002  
and later small off-road engine (SORE). In California, new small off-road engi-  
nes must be designed, built and equipped to meet the State’s stringent anti-  
smog standards. Elsewhere in the United States, new small off-road engines  
certified for model year 2002 and later, must meet similar standards set forth by  
the U.S. EPA. B&S must warrant the emissions control system on your engine  
for the period of time listed below, provided there has been no abuse, neglect or  
improper maintenance of your small off-road engine.  
Your emissions control system includes parts such as the carburetor, air  
cleaner, ignition system, muffler and catalytic converter. Also included may  
be connectors and other emissions related assemblies.  
Where a warrantable condition exists, B&S will repair your small off-road en-  
gine at no cost to you including diagnosis, parts and labor.  
Briggs & Stratton Corporation Emissions Control Defects Warranty Coverage  
Small off-road engines are warranted relative to emissions control parts de-  
fects for a period of two years, subject to provisions set forth below. If any  
covered part on your engine is defective, the part will be repaired or replaced  
by B&S.  
Owner’s Warranty Responsibilities  
As the small off-road engine owner, you are responsible for the performance  
of the required maintenance listed in your Operating & Maintenance Instruc-  
tions. B&S recommends that you retain all your receipts covering mainte-  
nance on your small off-road engine, but B&S cannot deny warranty solely  
for the lack of receipts or for your failure to ensure the performance of all  
scheduled maintenance.  
As the small off-road engine owner, you should however be aware that B&S  
may deny your warranty coverage if your small off-road engine or a part has  
failed due to abuse, neglect, improper maintenance or unapproved modifi-  
cations.  
You are responsible for presenting your small off-road engine to an Autho-  
rized B&S Service Dealer as soon as a problem exists. The undisputed  
warranty repairs should be completed in a reasonable amount of time, not to  
exceed 30 days.  
If you have any questions regarding your warranty rights and responsibili-  
ties, you should contact a B&S Service Representative at 1-800-233-3723.  
EPA EMISSIONS COMPLIANCE PERIOD: 1000 Hours  
CARB EMISSIONS COMPLIANCE PERIOD: 500 Hours  
Briggs & Stratton Corporation Emissions Control Defects Warranty Provisions  
The following are specific provisions relative to your Emissions Control Defects  
Warranty Coverage. It is in addition to the B&S engine warranty for non-regulated  
engines found in the Operating & Maintenance Instructions.  
2. Length of Coverage  
B&S warrants to the initial owner and each subsequent purchaser that  
the Warranted Parts shall be free from defects in materials and workman-  
ship which caused the failure of the Warranted Parts for a period of two  
years from the date the engine is delivered to a retail purchaser.  
1. Warranted Parts  
Coverage under this warranty extends only to the parts listed below (the  
emissions control systems parts) to the extent these parts were present  
on the engine purchased.  
3. No Charge  
Repair or replacement of any Warranted Part will be performed at no  
charge to the owner, including diagnostic labor which leads to the deter-  
mination that a Warranted Part is defective, if the diagnostic work is per-  
formed at an Authorized B&S Service Dealer. For emissions warranty  
service, contact your nearest Authorized B&S Service Dealer as listed in  
the “Yellow Pages” under “Lawn Mowers,” “Engines, Gasoline,” “Gaso-  
line Engines” or similar category.  
a. Fuel Metering System  
Carburetor and internal parts  
Cold start enrichment system  
Fuel Pump  
4. Claims and Coverage Exclusions  
Fuel Filter  
Warranty claims shall be filed in accordance with the provisions of the  
B&S Engine Warranty Policy. Warranty coverage shall be excluded for  
failures of Warranted Parts which are not original B&S parts or because  
of abuse, neglect or improper maintenance as set forth in the B&S En-  
gine Warranty Policy. B&S is not liable to cover failures of Warranted  
Parts caused by the use of add-on, non-original, or modified parts.  
b. Air Induction System  
Air cleaner  
Intake manifold  
c. Ignition System  
5. Maintenance  
Spark plug  
Ignition coil  
Ignition processor  
Any Warranted Part which is not scheduled for replacement as required  
maintenance or which is scheduled only for regular inspection to the ef-  
fect of “repair or replace as necessary” shall be warranted as to defects  
for the warranty period. Any Warranted Part which is scheduled for  
replacement as required maintenance shall be warranted as to defects  
only for the period of time up to the first scheduled replacement for that  
part. Any replacement part that is equivalent in performance and durabili-  
ty may be used in the performance of any maintenance or repairs. The  
owner is responsible for the performance of all required maintenance, as  
defined in the B&S Operating & Maintenance Instructions.  
d. Exhaust System  
Exhaust manifold  
e. Miscellaneous Items Used in Above Systems  
Vacuum, temperature, position, time sensitive valves and  
switches  
Electronic Controls  
Connectors and assemblies  
Hoses  
6. Consequential Coverage  
Coverage hereunder shall extend to the failure of any engine compo-  
nents caused by the failure of any Warranted Part still under warranty.  
17  
For Model Series 580447, 583447 & 589447  
Which are equal to or more than 19 kW  
Briggs & Stratton Corporation (B&S), the California Air Resources Board (CARB)  
and the United States Environmental Protection Agency (U.S. EPA)  
Emissions Control System Warranty Statement  
(Owner’s Warranty Rights and Obligations)  
EMISSIONS CONTROL WARRANTY COVERAGE IS APPLICABLE TO  
CERTIFIED MODEL YEAR 2004 AND LATER ENGINES, WHICH ARE  
PURCHASED AND USED IN CALIFORNIA, AND TO CERTIFIED MODEL  
YEAR 2004 AND LATER ENGINES, WHICH ARE PURCHASED AND  
USED ELSEWHERE IN THE UNITED STATES.  
California and United States Emissions Control Warranty Statement  
The California Air Resources Board (CARB), U.S. EPA and B&S are pleased  
of time listed below, provided there has been no abuse, neglect or improper  
to explain the Emissions Control System Warranty on your model year 2004  
and later off-road spark-ignition engine over 19kW (25HP). In California, new  
off-road large spark-ignition engines must be designed, built and equipped to  
meet the State’s stringent anti-smog standards. Elsewhere in the United  
States, new Non-road spark-ignition engines over 19kW certified for model  
year 2004 and later, must meet similar standards set forth by the U.S. EPA.  
B&S must warrant the emissions control system on your engine for the period  
maintenance of your engine.  
Your emissions control system includes parts such as the carburetor, air  
cleaner, ignition system, muffler, and catalytic converter. Also included may  
be hoses, belts, connectors and other emissions related assemblies.  
Where a warrantable condition exists, B&S will repair your engine at no cost  
to you including diagnosis, parts and labor.  
Briggs & Stratton Corporation Emissions Control Warranty Coverage  
The 2004 and later off-road spark-ignition engines are warranted for two  
years.  
If any emissions-related part on your engine is defective, the part will be  
repaired or replaced by B&S.  
Owner’s Warranty Responsibilities  
As the engine owner, you are responsible for the performance of the required  
maintenance listed in your Operating & Maintenance Instructions. B&S  
recommends that you retain all your receipts covering maintenance on your  
engine, but B&S cannot deny warranty solely for the lack of receipts or for  
your failure to ensure the performance of all scheduled maintenance.  
As the engine owner, you should however be aware that B&S may deny you  
warranty coverage if your engine or a part has failed due to abuse, neglect,  
improper maintenance or unapproved modifications. You are responsible for  
presenting your engine to an Authorized B&S Service Dealer as soon as a  
problem exists. The warranty repairs should be completed in a reasonable  
amount of time, not to exceed 30 days. If you have questions regarding your  
warranty rights and responsibilities, you should contact a B&S Service  
Representative at 1-800-233-3723.  
EMISSIONS COMPLIANCE PERIOD:  
1000 HOURS  
Briggs & Stratton Corporation Emissions Control Warranty Provisions  
The following are specific provisions relative to your Emissions Control  
3. No Charge  
Warranty Coverage. It is in addition to the B&S engine warranty for  
non-regulated engines found in the Operating & Maintenance Instructions.  
Repair or replacement of any Warranted Part will be performed at no  
charge to the owner, including diagnostic labor which leads to the  
determination that a Warranted Part is defective, if the diagnostic work  
is performed at an Authorized B&S Service Dealer. For emissions  
warranty service, contact your nearest Authorized B&S Service Dealer  
as listed in the “Yellow Pages” under “Engines, Gasoline,” “Gasoline  
Engines,” “Lawn Mowers,” or similar category.  
1. Warranted Parts  
Coverage under this warranty extends only to the parts listed below (the  
emissions control systems parts) to the extent these parts were present  
on the engine purchased.  
a. Fuel Metering System  
Carburetor and internal parts  
Cold start enrichment system  
Fuel pump  
4. Claims and Coverage Exclusions  
Warranty claims shall be filed in accordance with the provisions of the  
B&S Engine Warranty Policy. Warranty coverage shall be excluded for  
failures of Warranted Parts which are not original B&S parts or because  
of abuse, neglect or improper maintenance as set forth in the B&S  
Engine Warranty Policy. B&S is not liable to cover failures of Warranted  
Parts caused by the use of add-on, non-original, or modified parts.  
Fuel filter  
b. Air Induction System  
Air cleaner  
Intake manifold  
c. Ignition System  
Spark plug  
5. Maintenance  
Ignition coil  
Any Warranted Part which is not scheduled for replacement as required  
maintenance or which is scheduled only for regular inspection to the  
effect of “repair or replace as necessary” shall be warranted as to  
defects for the warranty period. Any Warranted Part which is scheduled  
for replacement as required maintenance shall be warranted as to  
defects only for the period of time up to the first scheduled replacement  
for that part. Any replacement part that is equivalent in performance and  
durability may be used in the performance of any maintenance or  
repairs. The owner is responsible for the performance of all required  
maintenance, as defined in the B&S Operating & Maintenance  
Instructions.  
Ignition processor  
d. Exhaust System  
Exhaust manifold  
e. Miscellaneous Items Used in Above System  
Vacuum, temperature, position, time sensitive valves and switches  
Electronic controls  
Connectors and assemblies  
Hoses  
2. Length of Coverage  
B&S warrants to the initial owner and each subsequent purchaser that  
the Warranted Parts shall be free from defects in materials and  
workmanship which caused the failure of the Warranted Parts for a  
period of two years from the date the engine is delivered to a retail  
purchaser.  
6. Consequential Coverage  
Coverage hereunder shall extend to the failure of any engine  
components caused by the failure of any Warranted Part still under  
warranty.  
18  
BRIGGS & STRATTON 3/LC ENGINE OWNER WARRANTY POLICY  
Effective January 1, 2006 replaces all undated Warranties and all Warranties dated before January 1, 2006  
LIMITED WARRANTY  
Briggs & Stratton Corporation (B&S) will repair or replace, free of charge, any part(s) of the engine that is defective in material or workmanship or both.  
Transportation charges on parts submitted for repair or replacement under this warranty must be borne by purchaser. This warranty is effective for the  
time periods and subject to the conditions stated below. For warranty service, find the nearest Authorized Briggs & Stratton 3/LC Service Dealer in  
THERE IS NO OTHER EXPRESS WARRANTY. IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR FROM PURCHASE, OR TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED  
WARRANTIES ARE EXCLUDED. LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARE EXCLUDED TO THE EXTENT EXCLUSION  
IS PERMITTED BY LAW. Some states or countries do not allow limitations on how long an implied warranty lasts, and some states or countries do not  
allow the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives  
you specific legal rights and you may also have other rights which vary from state to state and country to country.  
OUR PRODUCT  
VANGUARDE  
Major Parts Warranty*  
Parts & Labor*  
3/LC Engine  
WARRANTY PERIOD  
3 years  
2 years  
2 years  
Consumer and Commercial Use  
*
Note the following special warranty periods: For purposes of this warranty policy, Parts and Labor coverage is 2 years. Major parts only  
coverage is extended to through the third year of operation. Major Parts Warranty (M.P.W.) covers but is not limited to or exclusive to cylinder  
block, cylinder head, crankshaft, camshaft, gears, pistons, rods, flywheel, flywheel housing, oil pump, fan, pulleys, mechanical governor,  
intake manifold, oil pan. M.P.W. does not cover and is not limited to piston rings, replaceable bearings, water pump, any electrical component,  
valve train components, accessory parts, seals, gaskets, carburetors, exhaust manifold, hoses, all fuel system components, injectors,  
injection pump, turbocharger, muffler, any filters, radiator, thermostat, spark plugs, glow plugs, fuel transfer pumps. The warranty period begins  
on the date of purchase by the first retail consumer or commercial end user, and continues for the period of time stated in the table above.  
NO WARRANTY REGISTRATION IS NECESSARY TO OBTAIN WARRANTY ON B&S ENGINES. SAVE YOUR PROOF OF PURCHASE  
RECEIPT. IF YOU DO NOT PROVIDE PROOF OF THE INITIAL PURCHASE DATE AT THE TIME WARRANTY SERVICE IS REQUESTED,  
THE MANUFACTURING DATE OF THE PRODUCT WILL BE USED TO DETERMINE THE WARRANTY PERIOD.  
ABOUT YOUR ENGINE WARRANTY  
B&S welcomes warranty repair and apologizes to you for being  
inconvenienced. Any Authorized Briggs & Stratton 3/LC Service  
Dealer may perform warranty repairs. Most warranty repairs are  
handled routinely, but sometimes requests for warranty service  
may not be appropriate. For example, warranty would not apply  
if engine damage occurred because of misuse, lack of routine  
maintenance, shipping, handling, warehousing or improper  
installation. Similarly, warranty is void if the serial number of the  
engine has been removed or the engine has been altered or  
modified.  
If a customer differs with the decision of the Service Dealer, an  
investigation will be made to determine whether the warranty  
applies. Ask the Service Dealer to submit all supporting facts to  
the Distributor or the Factory for review. If the Distributor or the  
Factory decides that the claim is justified, the customer will be  
fully reimbursed for those items that are defective. To avoid  
misunderstanding which might occur between the customer and  
the Dealer, listed below are some of the causes of engine failure  
that the warranty does not cover.  
grit, or other abrasive material that has entered the engine  
because of improper maintenance, is not covered by warranty.  
This warranty covers engine related defective material  
and/or workmanship only, and not replacement or refund of  
the equipment to which the engine may be mounted. Nor  
does the warranty extend to repairs required because of:  
1. Engines that are not properly applied to equipment. It is  
strongly recommended that the factory be contacted prior  
to applying a B&S 3/LC engine to equipment that did not  
originally use a B&S 3/LC engine.  
2. PROBLEMS CAUSED BY PARTS THAT ARE NOT  
ORIGINAL BRIGGS & STRATTON PARTS.  
3. Equipment controls or installations that prevent starting,  
cause unsatisfactory engine performance, or shorten  
engine life. (Contact equipment manufacturer.)  
4. Leaking carburetors, clogged fuel pipes or injectors,  
sticking valves, contaminated injection pumps, or other  
damage, caused by using contaminated or stale fuel. Use  
clean, fresh fuel (lead free gasoline, diesel fuel) and Briggs  
& Stratton fuel stabilizer, Part No. 5041.  
5. Parts which are scored or broken because an engine was  
operated with insufficient or contaminated lubricating oil,  
or an incorrect grade of lubricating oil (check oil level daily  
or after every 8 hours of operation. Refill when necessary  
and change oil and oil filter at recommended intervals.)  
OIL GARD may not shut down running engine. Engine  
damage may occur if oil level is not properly maintained.  
Read Operating & Maintenance Instructions.  
6. Repair or adjustment of associated parts or assemblies  
such as clutches, transmissions, remote controls, etc.,  
which are not manufactured by B&S.  
7. Damage or wear to parts caused by dirt, which entered the  
engine because of improper air cleaner maintenance,  
re-assembly, or use of a non-original air cleaner element  
or cartridge. (At recommended intervals, replace  
cartridge.) Read Operating & Maintenance Instructions.  
8. Parts damaged by over-speeding, or overheating caused  
by grass, debris, or dirt, which plugs, clogs radiator or air  
cooling access openings, or damage caused by operating  
the engine in a confined area without sufficient ventilation.  
Engine damage caused by not using accurate mix of  
anti-freeze and tap water, or water entering the engine due  
to any cause.  
9. Engine or equipment parts broken by excessive vibration  
caused by a loose engine mounting, loose cutter blades,  
unbalanced blades or loose or unbalanced impellers,  
improper attachment of equipment to engine crankshaft,  
over-speeding or other abuse in operation.  
10. Routine tune-up or adjustment of the engine.  
11. Engine or engine component failure, i.e., combustion  
chamber, valves, valve seats, valve guides, or burned  
starter motor windings, caused by the use of alternate  
fuels such as, liquified petroleum, natural gas, altered  
gasolines, etc.  
Warranty is available only through service dealers which  
have been authorized by Briggs & Stratton. Locate your  
nearest Authorized B&S 3/LC Service Dealer through our  
Normal wear:  
Engines, like all mechanical devices, need periodic parts service  
and replacement to perform well. Warranty will not cover repair  
when normal use has exhausted the life of a part or an engine.  
Improper maintenance:  
The life of an engine depends upon the conditions under which it  
operates, and the care it receives. Some applications, such as  
tillers, pumps and rotary mowers, are very often used in dusty or  
dirty conditions, which can cause what appears to be premature  
wear. Such wear, when caused by dirt, dust, spark plug cleaning  
19  

Brother MFC 822 User Manual
Bryant 704B User Manual
Bryant 764A User Manual
Canon Printer H12 4606 User Manual
Carrier 38AUZ User Manual
Carrier 52F User Manual
Epson All in One Printer XP205 User Manual
Haier Air Conditioner AS18GS1ERA User Manual
Haier Air Conditioner HPU 48HK03 User Manual
HP Hewlett Packard C5200 User Manual