Generator
OWNER’S MANUAL
EF4000DE
EF5200DE
EF6600DE
YG4000D
YG5200D
YG6600D
YG6600DE
LIT-19626-01-15
7WV-28199-11
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AE00002
INTRODUCTION
Congratulations on your purchase of your new Yamaha.
This manual will provide you with a good basic understanding of the operation and
maintenance of this machine.
If you have any questions regarding the operation or maintenance of your machine,
please consult a Yamaha dealer.
AE00012
PRI-I.D. NUMBER:
IDENTIFICATION NUMBER RECORDS
Record your Primary I.D., and serial num-
bers in the spaces provided, to assist you
MODEL
in ordering spare parts from a Yamaha
dealer.
PRI-I.D.
CODE
Also record and keep these I.D. numbers
in a separate place in case your machine
is stolen.
SERIAL No.
AE00011
MACHINE IDENTIFICATION
The machine serial number is stamped in
the location as shown.
NOTE:
The first three digits of these numbers are
for model identification; the remaining dig-
its are the unit production number. Keep a
record of these numbers for reference
when ordering parts from a Yamaha deal-
er.
790-060
AE00022
EF4000DE/EF5200DE/EF6600DE
YG4000D/YG5200D/YG6600D/YG6600DE
OWNER’S MANUAL
© 2003 by Yamaha Motor Corporation, U.S.A.
1st Edition, August 2003
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in Japan.
P/N LIT-19626-01-15
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AE00032
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PLEASE READ AND UNDERSTAND
THIS MANUAL COMPLETELY BEFORE
OPERATING THE MACHINE.
Particularly important information is distin-
guished in this manual by the following
notations.
NOTE:
9 Yamaha continually seeks advance-
ments in product design and quality.
Therefore, while this manual contains
the most current product information
available at the time of printing, there
may be minor discrepancies between
your engine and this manual. If there
is any question concerning this manu-
al, please consult a Yamaha dealer.
9 This manual should be considered a
permanent part of this engine and
should remain with this engine when
resold.
-
The Safety Alert Symbol means ATTEN-
TION! BECOME ALERT! YOUR SAFETY
IS INVOLVED!
w
Failure to follow WARNING instructions
could result in severe injury or death to
the engine operator, a bystander, or a
person inspecting or repairing the engine.
cC
A CAUTION indicates special precautions
that must be taken to avoid damage to the
engine.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
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AE00041
CONTENTS
PERIODIC MAINTENANCE ................25
MAINTENANCE CHART ..................25
SPARK PLUG INSPECTION............27
CARBURETOR ADJUSTMENT .......27
ENGINE OIL REPLACEMENT .........28
AIR FILTER ......................................29
FUEL COCK .....................................30
FUEL TANK FILTER.........................30
LIMITED WARRANTY (EF- AND
EDL-SERIES) ........................................1
LIMITED WARRANTY (EC- AND
YG-SERIES) ..........................................2
LOCATION OF IMPORTANT LABELS.4
SAFETY INFORMATION.......................6
EXHAUST FUMES ARE
POISONOUS......................................6
MUFFLER SCREEN AND SPARK
ARRESTER ......................................31
FUEL IS HIGHLY FLAMMABLE AND
POISONOUS......................................6
BATTERY .........................................34
FUSE REPLACEMENT ....................35
G.F.C.I. RECEPTACLE TEST..........35
TROUBLESHOOTING......................36
STORAGE ...........................................40
DRAIN THE FUEL ............................40
ENGINE............................................40
BATTERY .........................................41
EXHAUST EMISSION CONTROL
ENGINE AND MUFFLER MAY
BE HOT ..............................................6
ELECTRIC SHOCK PREVENTION....7
CONNECTION NOTES ......................8
CONNECTION....................................8
EXTENSION CORD NOTES..............8
CONTROL FUNCTION..........................9
DESCRIPTION ...................................9
CONTROL BOX................................11
OIL WARNING SYSTEM..................13
ENGINE SWITCH.............................13
STARTER SWITCH..........................13
AC SWITCH (N.F.B.)........................14
ECONOMY IDLE SWITCH...............14
VOLTAGE ADJUSTER.....................15
G.F.C.I. RECEPTACLE ....................15
PRE-OPERATION CHECK .................16
FUEL.................................................16
ENGINE OIL .....................................17
GROUND (Earth)..............................18
BATTERY .........................................18
OPERATION........................................19
STARTING THE ENGINE.................19
APPLICATION RANGE ....................21
CONNECTION..................................22
STOPPING THE ENGINE ................24
SYSTEM AND COMPONENTS...........42
SPECIFICATIONS...............................43
DIMENSIONS...................................43
ENGINE............................................43
GENERATOR...................................43
WIRING DIAGRAM
EF4000DE ........................................44
EF5200DE ........................................45
EF6600DE ........................................46
YG4000D..........................................47
YG5200D..........................................48
YG6600D..........................................49
YG6600DE........................................50
BATTERY TRAY INSTALLATION......51
ENGINE HANGER INSTALLATION ...51
OPTIONAL PARTS INSTALLATION..51
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AE01119
YAMAHA MOTOR CORPORATION U.S.A.
EF- AND EDL-SERIES GENERATOR LIMITED WARRANTY
Yamaha Motor Corporation, U.S.A. hereby war-
rants that new Yamaha consumer generators pur-
chased from an authorized Yamaha consumer
generator dealer in the continental United States
will be free from defects in material and workman-
ship for the period of time stated herein, subject to
certain stated limitations.
2. Give notice to an authorized Yamaha con-
sumer generator dealer of any and all appar-
ent defects within ten (10) days after discov-
ery, and make the unit available at that time
for inspection and repairs at such dealer’s
place of business.
WARRANTY TRANSFER: To transfer the warran-
ty from the original purchaser to any subsequent
purchaser(s), it is imperative that the unit be
inspected and registered for warranty by an autho-
rized Yamaha consumer generator dealer. In order
for this warranty to remain in effect, this inspection
and registration must take place within ten (10)
days after transfer. An inspection and registration
fee will be charged for this service. In no case will
the warranty be extended beyond the original peri-
od.
THE PERIOD OF WARRANTY Any new EF-
series or EDL-series Yamaha Generator pur-
chased for private, non-commercial use from an
authorized Yamaha consumer generator dealer in
the continental United States will
be warranted against defects in material or work-
manship for a period two (2) years from date of
purchase, subject to exclusions noted herein. Any
Yamaha non-commercial
generator purchased and utilized for commercial
or rental applications will be warranted for a period
one (1) year from the date of purchase, subject to
exclusions noted herein.
YAMAHA MOTOR CORPORATION, U.S.A. MAKES
NO OTHER WARRANTY OF ANY KIND,
EXPRESSED OR IMPLIED. ALL IMPLIED WAR-
RANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE WHICH EXCEED
THE OBLIGATIONS AND TIME LIMITS STATED IN
THIS WARRANTY ARE HEREBY DISCLAIMED BY
YAMAHA MOTOR CORPORATION, U.S.A. AND
EXCLUDED FROM THIS WARRANTY.
DURING THE PERIOD OF WARRANTY any
authorized Yamaha consumer generator dealer
will, free of charge, repair or replace, at Yamaha’s
option, any part adjudged defective by Yamaha
due to faulty workmanship or material from the
factory. Parts used in warranty repairs will be war-
ranted for the balance of the product’s warranty
period. All parts replaced under warranty become
property of Yamaha Motor Corporation U.S.A.
SOME STATES DO NOT ALLOW LIMITATIONS ON
HOW LONG AN IMPLIED WARRANTY LASTS, SO
THE ABOVE LIMITATION MAY NOT APPLY TO
YOU. ALSO EXCLUDED FROM THIS WARRANTY
ARE ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES INCLUDING LOSS OF USE. SOME
STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES, SO THE ABOVE EXCLUSION
MAY NOT APPLY TO YOU.
GENERAL EXCLUSIONS from this warranty shall
include any failures caused by:
a. Installation of parts or accessories that are not
qualitatively equivalent to genuine Yamaha
parts.
b. Abnormal strain, neglect, or abuse.
c. Lack of proper maintenance.
d. Accident or collision damage.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE TO STATE.
SPECIFIC EXCLUSIONS from this warranty shall
include parts replaced due to normal wear or rou-
tine maintenance.
YAMAHA MOTOR CORPORATION, U.S.A.
Post Office Box 6555
THE CUSTOMER’S RESPONSIBILITY under this
warranty shall be to:
Cypress, California 90630
1. Operate and maintain the generator as speci-
fied in the appropriate Owner’s Manual;
– 1 –
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YAMAHA MOTOR CORPORATION U.S.A.
EC- AND YG-SERIES INDUSTRIAL GENERATOR LIMITED WARRANTY
Yamaha Motor Corporation, U.S.A. hereby war-
rants that new Yamaha EC- and YG-series gener-
ators purchased from an authorized Yamaha
industrial generator dealer in the continental
United States will be free from defects in material
and workmanship for the period of time stated
herein, subject to certain stated limitations.
WARRANTY TRANSFER: To transfer the warran-
ty from the original purchaser to any subsequent
purchaser(s), it is imperative that the unit be
inspected and registered for warranty by an autho-
rized Yamaha industrial generator dealer. In order
for this warranty to remain in effect, this inspection
and registration must take place within ten (10)
days after transfer. An inspection and registration
fee will be charged for this service. In no case will
the warranty be extended beyond the original peri-
od.
THE PERIOD OF WARRANTY for Yamaha EC-
series and YG-series generators shall be one (1)
year from the date of purchase.
DURING THE PERIOD OF WARRANTY any
authorized Yamaha industrial generator dealer
will, free of charge, repair or replace, at Yamaha’s
option, any part adjudged defective by Yamaha
due to faulty workmanship or material from the
factory. Parts used in warranty repairs will be war-
ranted for the balance of the product’s warranty
period. All parts replaced under warranty become
property of Yamaha Motor Corporation U.S.A.
YAMAHA MOTOR CORPORATION, U.S.A. MAKES
NO OTHER WARRANTY OF ANY KIND,
EXPRESSED OR IMPLIED. ALL IMPLIED WAR-
RANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE WHICH EXCEED
THE OBLIGATIONS AND TIME LIMITS STATED IN
THIS WARRANTY ARE HEREBY DISCLAIMED BY
YAMAHA MOTOR CORPORATION, U.S.A. AND
EXCLUDED FROM THIS WARRANTY.
GENERAL EXCLUSIONS from this warranty shall
include any failures caused by:
a. Installation of parts or accessories that are not
qualitatively equivalent to genuine Yamaha
parts.
b. Abnormal strain, neglect, or abuse.
c. Lack of proper maintenance.
d. Accident or collision damage.
SOME STATES DO NOT ALLOW LIMITATIONS ON
HOW LONG AN IMPLIED WARRANTY LASTS, SO
THE ABOVE LIMITATION MAY NOT APPLY TO
YOU. ALSO EXCLUDED FROM THIS WARRANTY
ARE ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES INCLUDING LOSS OF USE. SOME
STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES, SO THE ABOVE EXCLUSION
MAY NOT APPLY TO YOU.
SPECIFIC EXCLUSIONS from this warranty shall
include parts replaced due to normal wear or rou-
tine maintenance.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, AND YOU MAY ALSO HAVE OTHER
RIGHTS WHICH VARY FROM STATE TO STATE.
THE CUSTOMER’S RESPONSIBILITY under this
warranty shall be to:
1. Operate and maintain the diesel generator as
specified in the appropriate Owner’s Manual;
YAMAHA MOTOR CORPORATION, U.S.A.
Post Office Box 6555
Cypress, California 90630
2. Give notice to an authorized Yamaha industri-
al generator dealer of any and all apparent
defects within ten (10) days after discovery,
and make the unit available at that time for
inspection and repairs at such dealer’s place
of business.
– 2 –
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WARRANTY QUESTIONS AND ANSWERS
Q. What costs are my responsibility during the
Q. Is the warranty transferable to second own-
warranty period?
ers?
A. The customer’s responsibility includes all
costs of normal maintenance service, non-
warranty repairs, accident damages, as well
as oil and spark plugs.
A. Yes. The remainder of the existing warranty
can be transfered upon request.The unit has
to be inspected and reregistered by an autho-
rized Yamaha generator dealer for the policy
to remain effective.
Q. What are some examples of “abnormal” strain,
neglect, or abuse?
CUSTOMER SERVICE
A. These terms are general and overlap each
other in areas. Specific examples include:
Running the machine out of oil; lack of proper
maintenance; operating the machine with a
broken or damaged part which causes anoth-
er part to fail; and so on. If you have any
specific questions on operation or mainte-
nance, please contact your dealer for advice.
If your machine requires warranty service, you
must take it to any authorized Yamaha generator
dealer within the continental United States. Be
sure to bring your warranty registration identifica-
tion or other valid proof of the original date of pur-
chase. If a question or problem arises regarding
warranty, first contact the owner of the dealership.
Since all warranty matters are handled at the deal-
er level, this person is in the best position to help
you. If you are still not satisfied and require addi-
tional assistance, please write:
Q. Does the warranty cover incidental costs such
as transportation due to a failure?
A. No. The warranty is limited to repair of the
machine itself.
YAMAHA MOTOR CORPORATION U.S.A. CUS-
TOMER RELATIONS DEPARTMENT
P.O. BOX 6555
Q. May I perform any or all of the recommended
maintenance shown in the Owner’s Manual
instead of having the dealer do them?
Cypress, California 90630
A. Yes, if you are a qualified mechanic and follow
the procedures specified in the Owner’s and
Service Manual. We do recommend, however,
that items requiring special tools or equipment
be done by a Yamaha generator dealer.
CHANGE OF ADDRESS
The federal government requires each manufac-
turer to maintain a complete, up-to-date list of all
first purchasers against the possibility of a safety-
related defect and recall. This list is compiled from
the purchase registrations sent to Yamaha Motor
Corporation, U.S.A. by the selling dealer at the
time of your purchase. If you should move after
you have purchased your new generator, please
advise us of your new address by sending a post-
card listing your Yamaha model name, engine
number, dealer number (or dealer’s name) as it is
shown on your warranty identification, your name
and new mailing address. Mail to:
Q. Will the warranty be void or cancelled if I do
not operate or maintain my new Yamaha
exactly as specified in the Owner’s Manual?
A. No. The warranty on a new Yamaha cannot
be “voided” or “cancelled.”
However, if a particular failure is caused by
operation or maintenance other than as
shown in the Owner’s Manual, that failure
may not be covered under warranty.
Q. What responsibility does my dealer have
under this warranty?
A. Each Yamaha generator dealer is expected
to:
YAMAHA MOTOR CORPORATION, U.S.A.
WARRANTY DEPARTMENT
P.O. Box 6555
1. Check the operation of the generator
before sale.
Cypress, California 90630
2. Explain the operation, maintenance, and
warranty requirements to your satisfaction
at the time of sale, and upon your request
at any later date.
This will ensure that Yamaha Motor Corporation,
U.S.A. has an up-to-date registration record in
accordance with federal law.
In addition, each Yamaha generator dealer is
held responsible for his setup, service and
warranty repair work.
– 3 –
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AE00062
twy r q
e
LOCATION OF IMPORTANT LABELS
(For EF4000DE/YG4000D)
Please read the following labels carefully before oper-
ating this machine.
NOTE:
Maintain or replace safety and instruction labels, as
necessary.
twy r q
1
2
HOT EXHAUST
WARNING
Electrocution Or property damage
can occur: Do not connect this
generator to any building ’s electrical
system unless an isolation switch
has been installed by a licensed elec-
trician. Refer to the owner’s manual.
3
WARNING
HOT AREA
DO NOT TOUCH
4
q
q
WARNING
AVERTISSEMENT
LISEZ LE MODE D‘EMPLOI ET TOUTES LES ETIQUETTES AVANT DE
FAIRE FONCTIONNER LA MACHINE.
FAITES FONCTIONNER UNIQUEMENT DANS DES LIEUX BIEN AERES.
8
8
READ THE OWNER‘S MANUAL AND ALL LABELS BEFORE OPERATING.
8
ONLY OPERATE IN WELL-VENTILATED AREA.
8
EXHAUST GAS CONTAINS POISONOUS CARBON MONOXIDE.
CHECK FOR SPILLED FUEL OR FUEL LEAKS.
STOP ENGINE BEFORE REFUELING.
LES GAZ D‘ECHAPPEMENT CONTIENNENT DU MONOXYDE DE CARBONE.
8 VERIFIEZ SI DU CARBURANT A ETE RENVERSE DU S‘IL FUIT.
8
8
8
ARRETEZ LE MOTEUR AVANT DE FAIRE LE PLEIN DE CARBURANT.
N‘UTILISEZ PAS A PROXIMITE DE MATERIAUX INFLAMMABLES.
8
8
DO NOT OPERATE NEAR FLAMMABLE MATERIALS.
ELECTROCUTION CAN OCCUR IF GENERATOR IS USED IN RAIN,
SNOW, OR NEAR WATER. KEEP THIS UNIT DRY AT ALL TIMES.
IL Y A RISQUE D‘ELECTROCUTION SI LE GENERATEUR FONCTIONNE
SOUS LA PLUIE, DANS LA NEIGE, OU PRES DE L‘EAU. GARDEZ LA
8
8
MACHINE AU SEC EN TOUTES CIRCONSTANCES.
7NJ-24162-10
5
6
DISPLACEMENT
:
J
VALVE LASH
(
A
)
IN
:
EX:
z.zz~z.zz
z.zz~z.zz
zzz
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY : zzzzzzzzzzzz
IGNITION TIMING
IDLE SPEED
&
IDLE MIXTURE
NO OTHER ADJUSTMENTS NEEDED.
rpm AT NO LOAD
E M
REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
:
zzzz~zzzz
THIS ENGINE MEETS zzzz-zzzz CALIFORNIA EMISSION REGULATIONS FOR SMALL OFF-ROAD ENGINES.
FUEL
:
THIS ENGINE IS CERTIFIED TO OPERATE ON UNLEADED GASOLINE.
TYPE
THIS ENGINE CONFORMS TO PHASE
EMISSIONS COMPLIANCE PERIOD:CATEGORY
2
U.S.EPA REGULATIONS FOR SMALL NONROAD ENGINES.
(EPA)
A
YAMAHA MOTOR CO. LTD
zzz-2179R-zz
ENGINE OIL
:
SAE 10W
-
30
SE
(
)
y
ENGINE AIR INDEX C a l i f o r n i a o n l
MOST 0C L E A N
2
4
6
8
LEAS1T 0
CLEAN
T H E P O L L U T I O N
:
N O T E
T H E L O W E R T H E A I R
I S C E R T I F I E D
F O R T H E F O L L O W I N G U S E :
I N D E X , T H E L E S S
T H I S E N G I N E
T O B E E M I S S I O N C O M P L I A N T
INTERMEDIATE
MODERATE
EXTENDED
CHECK OWNERS MANUAL FOR FURTHER
L A B E L REMOVED B Y
D
M
E
A
T
T
A
E
I
L
S
T
H
I
S
T
O
B
E
T
H
E
U
L
T
I
P U R C H A S E R O N L Y !
– 4 –
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t
(For EF5200DE/EF6600DE/YG5200D/
YG6600D/YG6600DE)
e
r
q
792-027a
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1
2
HOT EXHAUST
WARNING
Electrocution Or property damage
can occur: Do not connect this
generator to any building ’s electrical
system unless an isolation switch
has been installed by a licensed elec-
trician. Refer to the owner’s manual.
792-028b
3
q
q
WARNING
AVERTISSEMENT
LISEZ LE MODE D‘EMPLOI ET TOUTES LES ETIQUETTES AVANT DE
FAIRE FONCTIONNER LA MACHINE.
FAITES FONCTIONNER UNIQUEMENT DANS DES LIEUX BIEN AERES.
8
8
READ THE OWNER‘S MANUAL AND ALL LABELS BEFORE OPERATING.
8
8
ONLY OPERATE IN WELL-VENTILATED AREA.
EXHAUST GAS CONTAINS POISONOUS CARBON MONOXIDE.
CHECK FOR SPILLED FUEL OR FUEL LEAKS.
STOP ENGINE BEFORE REFUELING.
LES GAZ D‘ECHAPPEMENT CONTIENNENT DU MONOXYDE DE CARBONE.
8 VERIFIEZ SI DU CARBURANT A ETE RENVERSE DU S‘IL FUIT.
8
8
8
ARRETEZ LE MOTEUR AVANT DE FAIRE LE PLEIN DE CARBURANT.
N‘UTILISEZ PAS A PROXIMITE DE MATERIAUX INFLAMMABLES.
8
8
DO NOT OPERATE NEAR FLAMMABLE MATERIALS.
ELECTROCUTION CAN OCCUR IF GENERATOR IS USED IN RAIN,
SNOW, OR NEAR WATER. KEEP THIS UNIT DRY AT ALL TIMES.
IL Y A RISQUE D‘ELECTROCUTION SI LE GENERATEUR FONCTIONNE
SOUS LA PLUIE, DANS LA NEIGE, OU PRES DE L‘EAU. GARDEZ LA
8
8
MACHINE AU SEC EN TOUTES CIRCONSTANCES.
7NJ-24162-10
4
5
DISPLACEMENT
:
J
VALVE LASH
(
A
)
IN
:
EX:
z.zz~z.zz
z.zz~z.zz
zzz
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY : zzzzzzzzzzzz
IGNITION TIMING
IDLE SPEED
&
IDLE MIXTURE
NO OTHER ADJUSTMENTS NEEDED.
rpm AT NO LOAD
E M
REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
:
zzzz~zzzz
THIS ENGINE MEETS zzzz-zzzz CALIFORNIA EMISSION REGULATIONS FOR SMALL OFF-ROAD ENGINES.
FUEL
:
THIS ENGINE IS CERTIFIED TO OPERATE ON UNLEADED GASOLINE.
TYPE
THIS ENGINE CONFORMS TO PHASE
EMISSIONS COMPLIANCE PERIOD:CATEGORY
2
U.S.EPA REGULATIONS FOR SMALL NONROAD ENGINES.
(EPA)
A
YAMAHA MOTOR CO. LTD
zzz-2179R-zz
ENGINE OIL
:
SAE 10W
-
30
SE
(
)
y
ENGINE AIR INDEX C a l i f o r n i a o n l
MOST 0C L E A N
2
4
6
8
LEAS1T 0
CLEAN
T H E P O L L U T I O N
:
N O T E
T H E L O W E R T H E A I R
I S C E R T I F I E D
F O R T H E F O L L O W I N G U S E :
I N D E X , T H E L E S S
T H I S E N G I N E
T O B E E M I S S I O N C O M P L I A N T
INTERMEDIATE
MODERATE
EXTENDED
CHECK OWNERS MANUAL FOR FURTHER
L A B E L REMOVED B Y
D
M
E
A
T
T
A
E
I
L
S
T
H
I
S
T
O
B
E
T
H
E
U
L
T
I
P U R C H A S E R O N L Y !
– 5 –
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AE00071
SAFETY INFORMATION
AE00072
EXHAUST FUMES ARE POISONOUS
9 Never operate the engine in a closed area or it
may cause unconsciousness and death within a
short time. Operate the engine in a well ventilated
area.
741-002
AE00075
FUEL IS HIGHLY FLAMMABLE AND POISONOUS
9 Always turn off the engine when refuelling.
9 Never refuel while smoking or in the vicinity of an
open flame.
741-003
9 Take care not to spill any fuel on the engine or
muffler when refuelling.
9 If you swallow any fuel, inhale fuel vapor, or allow
any to get in your eye(s), see your doctor immedi-
ately. If any fuel spills on your skin or clothing,
immediately wash with soap and water and
change your clothes.
741-005
9 When operating or transporting the machine, be
sure it is kept upright. If it tilts, fuel may leak from
the carburetor or fuel tank.
741-004
AE00843
ENGINE AND MUFFLER MAY BE HOT
9 Place the machine in a place where pedestrians
or children are not likely to touch the machine.
741- 006
9 Avoid placing any flammable materials near the
exhaust outlet during operation.
741-007
– 6 –
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9 Keep the machine at least 1 m (3 ft) from buildings
a
or other equipment, or the engine may overheat.
a 1 m (3 ft)
741-008a
9 Avoid operating the engine with a dust cover.
741-009
9 Be sure to carry the generator only by its carrying
q
handle(s).
1 Carrying handle(s) (shaded)
741-060
AE00083
ELECTRIC SHOCK PREVENTION
9 Never operate the engine in rain or snow.
741-010
9 Never touch the machine with wet hands or elec-
trical shock will occur.
741-011
9 Be sure to ground (earth) the generator.
NOTE:
A
Use ground (earth) lead of sufficient current capacity.
q
1 Lead diameter
741-062e
– 7 –
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B
Ground (earth) Lead
Diameter:
0.12 mm (0.005 in)/ampere
EX;
q
10 Ampere → 1.2mm (0.05 in)
å EF4000DE/YG4000D
741-065
B EF5200DE/EF6600DE/YG5200D/YG6600D/YG6600DE
AE00088
q
CONNECTION NOTES
9 Avoid connecting the generator to commercial power out-
let.
9 Avoid connecting the generator in parallel with any other
generator.
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q
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1 Correct
2 Incorrect
AE00091
CONNECTION
w
Before the generator can be connected to a build-
ing’s electrical system, a licensed electrician must
install an isolation (transfer) switch in the build-
ing’s main fuse box. The switch is the connection
point for generator power and allows selection of
generator or main line power to the building. This
will prevent the generator from charging the main
power line (backfeeding) when the main power
supply has failed or has been turned off for line
repair. Backfeeding can electrocute or injure line
maintenance personnel. Also, generator and build-
ing electrical system damage can occur when nor-
mal operating power returns if unit is used without
an isolation switch.
741-040a
AE00086
EXTENSION CORD NOTES
9 When using an extension cord, its total length
should not exceed
60 meters for cross section of 1.5 mm square
and
100 meters for cross section of 2.5 mm square.
9 This extension cord should be protected by a
tough flexible rubber sheath (IEC 245) or the
equivalent to withstand mechanical stresses.
– 8 –
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AE00101
EF4000DE
CONTROL FUNCTION
q w !
2
!
3
u
!3
e
AE00102
DESCRIPTION
(for EF4000DE/EF5200DE/EF6600DE)
1 Fuel tank
r
2 Fuel tank cap
3 Fuel cock
4 Air filter cover
5 Spark plug
6 Muffler
!
0
oi
7 Ground (Earth) terminal
8 Oil filler cap
!
3
t !
3
9 Oil drain plug
0 Recoil starter
q Voltage adjuster (for EF5200DE/EF6600DE)
w Fuel level gauge
e Carrying handles (shaded)
y
EF5200DE/EF6600DE
!
3
w
!
2
q !
3
!
3
t
!
1
!
3
e
y
!
r
0
o
i
793-064a
– 9 –
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AE00102
YG4000D
DESCRIPTION
(for YG4000D/YG5200D/YG6600D/
YG6600DE)
q w!
2
!
3
i
!e3
1 Fuel tank
2 Fuel tank cap
3 Fuel cock
r
4 Air filter cover
5 Spark plug
6 Muffler
7 Choke lever (for YG4000D/YG5200D/YG6600D)
8 Ground (Earth) terminal
9 Oil filler cap
u !
1
!o0
t
!
3
!
3
0 Oil drain plug
q Recoil starter
w Fuel level gauge
e Carrying handles (shaded)
y
YG5200D/YG6600D
!
3
w
q
!
2
!
3
!
3
t
u
!
3
y
!
1
e
r
!
0
o
793-065a
YG6600DE
!
3
!
3
w
q
!
2
t
!
3
!
3
y
!
1
e
r
!
0
o
793-066a
– 10 –
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AE00104
EF4000DE
CONTROL BOX
(for EF4000DE/
EF5200DE/EF6600DE)
1 AC switch (N.F.B.)
2 AC receptacle
3 Voltage meter
4 Oil warning light
5 Engine switch
6 Economy idle switch
y
q
w
r
e
t
EF5200DE
w
q
r
e
y
t
EF6600DE
q
r
w
e
y
t
793-067
– 11 –
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AE00104
YG4000D
CONTROL BOX
(for YG4000D/
YG5200D/YG6600D/
YG6600DE)
y u t
q
q
w
e
1 AC switch (N.F.B.)
2 G.F.C.I. receptacle
3 AC receptacle
4 Voltage meter
(for YG5200D/
YG6600D/YG6600DE)
5 Oil warning light
6 Engine switch
7 Economy idle switch
8 Starter switch
(for YG6600DE)
9 Pilot light
o
t
YG5200D
(for YG4000D)
r
q w
e
q
u
y
YG6600D
t
r
q
w
e
q
u
y
793-068
YG6600DE
y t
r
e
q
q w
u
i
793-069
– 12 –
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AE00111
OIL WARNING SYSTEM
When the oil level falls below the lower level, the
engine stops automatically. Unless you refill with oil,
the engine will not start again.
NOTE:
If the engine stalls or does not start, turn the engine
switch to "ON" position and then pull the recoil starter.
If the oil warning light flickers for a few seconds, the
engine oil is insufficient. Add oil and restart.
700-027c
AE00121
A
ENGINE SWITCH
q
The engine switch controls the ignition system.
e
w
1
7
“ON”
Ignition circuit is switched on.
The engine can be started.
2
5
“STOP”
763-119
Ignition circuit is switched off.
The engine will not run.
B
3
6
“START”
q
w
Starting circuit is switched on.
The starter motor starts.
å EF4000DE/EF5200DE/EF6600DE
∫ YG4000D/YG5200D/YG6600D/YG6600DE
763-121a
cC
Take your hand off the switch immediately after
the engine starts.
AE00920
STARTER SWITCH (for YG6600DE)
The starter switch controls the following item.
Push:
763-011
Starting circuit is switched on.
Release:
Starting circuit is switched off.
cC
Take your hand off the switch immediately after
the engine starts.
– 13 –
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AE00863
A
B
AC SWITCH (N.F.B.)
q
The AC switch (Non-Fuse Breaker) turns off automati-
cally when the load exceeds the generator rated out-
put.
q
q
w
w
w
1
2
I
3
“ON”
“OFF”
763-193a
å EF4000DE/YG4000D
C-1
C-2
∫ EF5200DE/EF6600DE/YG5200D/YG6600D/YG6600DE
q
C-1
Supplies AC 120V (EF4000DE/YG4000D)
q
C-2
Supplies AC 120V (EF5200DE/EF6600DE/YG5200D/
YG6600D/YG6600DE)
Supplies AC 120V and 240V (EF4000DE/YG4000D)
Supplies AC 120V and 240V (EF5200DE/EF6600DE/
YG5200D/YG6600D/YG6600DE)
w
w
q
D-1
D-2
763-194d
D-1
D-2
cC
q
q
q
Reduce the load to the specified generator rated
output if the AC switch (N.F.B.) turns off. If it turns
off again, consult a Yamaha dealer.
763-195a
763-124a
779-017
AE00142
ECONOMY IDLE SWITCH
When the economy idle switch is turned to "ON", the
engine speed is automatically reduced to idle when
the generator load is reduced to 0.8 A or less. The
results are better fuel consumption and less noise.
q
w
1
2
I
3
“ON”
“OFF”
240V
GR
NOTE:
Y
G
120V
The economy idle switch must be turned to "OFF" to
increase engine speed to rated rpm when:
- using a load of 0.8 A or less.
W
X
120V
- supplying AC 120V only from W with X.
– 14 –
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AE00791
VOLTAGE ADJUSTER
(for EF5200DE/EF6600DE)
The adjuster is equipped for adjusting output voltage
to rated voltage.
NOTE:
779-039
Turn the adjuster clockwise or counterclockwise to
increase or decrease output voltage.
779-037
AE00848
q
G.F.C.I. RECEPTACLE
(for YG4000D/YG5200D/YG6600D/YG6600DE)
The G.F.C.I. (Ground Fault Circuit Interrupter) 1 shuts
off power to the protected receptacles if a ground fault
(electrical leak) is detected.
If the reset button 2 pops out 3, the equipment
plugged into the receptacle may be faulty. If this hap-
pens, check the equipment carefully. If the equipment
appears to be in good condition, press the reset button
firmly until a click is heard. This will restore power. If
the reset button pops out again, unplug the equipment
immediately. Have the equipment inspected and
repaired by a qualified repairperson before attempting
to use it again.
w
763-083
e
763-060
w
TO REDUCE THE CHANCE OF ELECTRICAL
SHOCK:
9 Do not attempt to operate equipment if the
ground fault circuit interrupter reset button
pops out repeatedly during use.
9 Test the ground fault circuit interrupter during
the pre-operation checks according to the
maintenance instructions on page 35.
9 Remember that only receptacles labeled
“GFCI” have ground fault circuit interrupter
protection.
– 15 –
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AE00845
PRE-OPERATION CHECK
NOTE:
Pre-operation checks should be made each time the
generator is used.
w
The engine and muffler will be very hot after the
engine has been run.
Avoid touching the engine and muffler while they
are still hot with any part of your body or clothing
during inspection or repair.
741-001
AE00856
FUEL
Make sure there is sufficient fuel in the tank.
Recommended fuel:
Unleaded gasoline
Fuel tank capacity:
q
707-033a
Total:
EF4000DE/YG4000D:
18.5 L (4.07 Imp gal, 4.89 US gal)
EF5200DE/EF6600DE/YG5200D/YG6600D/
YG6600DE:
21.0 L (4.62 Imp gal, 5.55 US gal)
Your Yamaha engine has been designed to use regu-
lar unleaded gasoline with a pump octane number ((R
+ M)/2) of 86 or higher, or research octane number of
91 or higher.
707-001
1 Fuel level gauge
“F”
“E”
Full
Empty
707-037
707-051
– 16 –
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w
9 Fuel is highly flammable and poisonous.
Check “SAFETY INFORMATION” (See page 6)
carefully before refueling.
9 Do not fill above the top of the fuel filter or it
may overflow when the fuel heats up later and
expands.
9 Wipe up any spilled fuel immediately.
9 After refueling, make sure the tank cap is tight-
ened securely.
AE00222
ENGINE OIL
Make sure the engine oil is at the upper level of the oil
filler hole.
Add oil as necessary.
1 Upper level
700-068
Recommended oil:
å
YAMALUBE 4 (10W-30) or SAE 10W-30
type SE motor oil
SAE #30
SAE #20
q
∫
ç
∂
SAE 10W
700-110
Engine oil quantity:
EF4000DE/YG4000D:
0°C
25°C
1.0 L (0.88 lmp qt, 1.06 US qt)
EF5200DE/EF6600DE/YG5200D/YG6600D/
YG6600DE:
A YAMALUBE 4(10W-30)
D SAE 10W
C SAE #20
B SAE #30
1.1 L (0.97 lmp qt, 1.16 US qt)
32°F
80°F
700-065
NOTE:
Recommended engine oil classification:
API Service “SE” or “SF”.
cC
The generator has been shipped without engine
oil. Fill with oil or it will not start.
700-006
– 17 –
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AE00241
A
GROUND (Earth)
Make sure to ground (earth) the generator.
Check "SAFETY INFORMATION" on page 7.
å EF4000DE/YG4000D
741-061
∫ EF5200DE/EF6600DE/YG5200D/YG6600D/YG6600DE
B
741-066
AE00231
BATTERY
(for EF4000DE/EF5200DE/EF6600DE/YG6600DE)
(See page 34 for more details)
Check the fluid level and fill if necessary.
Use only distilled water if refilling is necessary.
Installation
830-002a
1. Turn the engine switch to the "STOP" position to
prevent accidental short circuiting.
2. Install the battery on the battery mount tray
securely.
w
q
NOTE:
Clamp the red wire to the positive (+) terminal first,
then the black wire to the negative (–) terminal of the
battery. Do not reverse these positions.
762-004
w
Be sure to service battery leads to prevent arcing
when the battery is not installed.
e
9 Disconnect the battery charging output lead.
Then insulate the generator side connector by
folding it back on itself and carefully wraping it
with electrical tape to prevent electrical con-
tact with ground (earth) or any other leads.
9 Remove the battery leads from the generator.
q
762-005
1 Connector
2 Battery leads
3 Electrical tape
– 18 –
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AE00955
OPERATION
NOTE:
q
The generator has been shipped without engine oil.
Fill with oil or it will not start.
700-006a
1 Upper level
AE00918
STARTING THE ENGINE
q
NOTE:
9 Before starting the engine, do not connect any
electric devices.
9 Turn the AC switch (N.F.B.) and economy idle
switch to the “OFF” position.
761-047
A
B
1
3
“OFF”
å AC switch (N.F.B.) for EF4000DE/YG4000D
∫ AC switch (N.F.B.) for EF5200DE/EF6600DE/YG5200D/
YG6600D/YG6600DE
120V
q
q
240V
q
q
763-196b
ç Economy idle switch
C
q
763-126b
1. Turn the fuel cock lever to the “ON” position.
1 “ON”
q
705-037
2. Turn the engine switch to the “ON” position.
A
B
q
q
1
7
“ON”
å EF4000DE/EF5200DE/EF6600DE
∫ YG4000D/YG5200D/YG6600D/YG6600DE
763-127c
– 19 –
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Electric Starting Model:
(for EF4000DE/EF5200DE/EF6600DE)
3. Turn the engine switch to “START”.
q
1
6
“START”
763-120a
(for YG6600DE)
3. Push the starter switch to start the engine.
1 Starter switch
cC
9 Take your hand off the switch immediately
after the engine starts.
q
763-011a
9 If the engine fails to start, release the switch,
wait a few seconds, then try again. Each
attempt should be as short as possible to pre-
serve the battery. Do not crank the engine
more than 10 seconds on any one attempt.
Manual Starting Model:
(for YG4000D/YG5200D/YG6600D)
3. Turn the choke lever to the “1” position.
A
1 Choke lever
å YG4000D
q
∫ YG5200D/YG6600D
701-033b
NOTE:
B
The choke is not required to start a warm engine. Turn
the choke lever to the operating position.
q
701-025c
4. Pull slowly on the recoil starter until it is engaged,
then pull it briskly.
5. After the engine starts, warm up the engine until
the engine does not stop when the choke lever is
returned to the operating position.
704-010
– 20 –
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A
NOTE:
Especially in areas below freezing point, keep the
choke lever at the halfway position until the engine is
warmed up.
q
6. When the engine is warm, turn the choke lever
back to the operating position (fully to the left).
701-033c
B
1 Operating position
q
å YG4000D
∫ YG5200D/YG6600D
701-025d
AE00970
APPLICATION RANGE
AC
0.4–0.75
(Efficiency 0.85)
Power factor
1
0.8–0.95
EF4000DE/YG4000D
EF5200DE/YG5200D
–3,500W
–4,500W
–2,800W
–3,600W
–1,190W
–1,530W
EF6600DE
YG6600D
YG6600DE
–6,000W
–4,800W
–2,040W
NOTE:
9 “–” means below.
9 Application wattage indicates when each device is used by itself.
cC
Be sure the total load is within generator rated output otherwise generator dam-
age will occur.
NOTE:
Some precision equipment is voltage sensitive and may require a more uniform voltage
supply than portable generators provide. Examples include some medical equipment,
personal computers, and some inverters that sense peak and RMS voltage values.
Consult the precision-equipment vendor before relying on any portable generator to pro-
vide power to such equipment.
– 21 –
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AE00949
CONNECTION
Alternating Current (AC)
cC
9 Be sure all electric devices including the lines
and plug connections are in good condition
before connection to the generator.
9 Be sure any electric devices are turned off
before plugging it in.
761-006
9 Be sure the total load is within generator rated
output.
9 Be sure the receptacle load current is within
receptacle rated current.
761-046
1. Wind the power lead 2 or 3 turns around frame.
2. Start the engine.
A
B
3. Plug into AC receptacle.
4. Make sure the voltage meter indicates the rated
voltage (except for YG4000D) or the pilot light is
on (for YG4000D).
779-032a
779-039a
763-194e
å Voltage meter
∫ Pilot light
If the voltage meter does not indicate the rated volt-
age, adjust output voltage to rated voltage (for
EF5200DE/EF6600DE).
q
1 Voltage adjuster
NOTE:
Turn the adjuster clockwise or counterclockwise to
increase or decrease output voltage.
A-1
A-2
q
q
5. Turn the AC switch (N.F.B.) and economy idle
switch to the “ON” and turn on any electric
devices.
1
I
“ON”
B-1
B-2
A-1
AC120V can be used. (EF4000DE/YG4000D)
AC120V can be used. (EF5200DE/EF6600DE/
YG5200D/YG6600D/YG6600DE)
A-2
q
q
q
q
B-1
B-1
AC120V and 240V can be used. (EF4000DE/YG4000D)
AC120V and 240V can be used. (EF5200DE/
EF6600DE/YG5200D/YG6600D/YG6600DE)
763-195a
– 22 –
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For YG4000D, YG5200D and YG6600D(E), also turn
C
the individual AC switch (N.F.B.) to the “ON” position.
q
1
I
“ON”
ç Individual AC switch (YG4000D)
763-210
∂ Individual AC switch (YG5200D and YG6600D(E))
D
q
763-211
cC
240V
Reduce the load to the specified generator rated
output if an AC switch turns off. If it turns off
again, consult a Yamaha dealer.
GR
Y
G
120V
W
X
120V
NOTE:
779-017
9 The 4-blade plug receptacle can supply both 120V
and 240V power sources.
E
9 The economy idle switch must be turned to “OFF”
to increase engine speed to rated rpm when:
- using a load of 0.8A or less.
q
- supplying AC120V only from W with X.
763-129a
´ Economy idle switch
1
I
“ON”
– 23 –
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AE00840
STOPPING THE ENGINE
NOTE:
9 Turn off any electric devices.
9 Turn the AC switch (N.F.B.) and economy idle
switch to the “OFF” position.
1
3
“OFF”
A
B
å AC switch (N.F.B.) (for EF4000DE/YG4000D)
∫ AC switch (N.F.B.) (for EF5200DE/EF6600DE/YG5200D/
YG6600D/YG6600DE)
120V
q
q
240V
q
q
763-196b
ç Economy idle switch
C
q
763-126b
1. Disconnect any electric devices.
q
761-047
2. Turn the engine switch to the “STOP” position.
A
B
1
5
“STOP”
q
å EF4000DE/EF5200DE/EF6600DE
∫ YG4000D/YG5200D/YG6600D/YG6600DE
q
763-130b
3. Turn the fuel cock lever to “OFF”.
1 “OFF”
q
705-038
– 24 –
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AE00401
PERIODIC MAINTENANCE
AE00403
MAINTENANCE CHART
Regular maintenance is most important for best performance and safe operation.
w
Stop the engine before starting maintenance work.
Initial
Every
6
Pre-Ope-
ration
1
3
12
No.
Item
Remarks
check
month
months months months
(daily)
or 20 Hr or 50 Hr or 100 Hr or 300 Hr
Check condition.
Adjust gap and
clean. Replace if
necessary.
**
1. Spark Plug
0
Check and adjust
when engine is
cold.
**
2.* Valve Clearance
0
Check breather
hose for cracks or
damage. Replace
if necessary.
**
Crankcase
3.*
0
0
breather system
Check and adjust
engine idle speed.
**
4.* Idle speed
Check for leakage.
Retighten or
*replace gasket
if necessary.
0
**
5. Exhaust System
Check muffler
screen and spark
arrester. Clean/
replace if
0
necessary.
Check oil level
Replace
0
6. Engine Oil
0
0
0
Clean.
Replace if
necessary.
**
7. Air Filter
0
Clean fuel cock
and fuel tank
filter. Replace if
necessary.
8. Fuel Filter
*
: It is recommended that these items be serviced by a Yamaha dealer.
** : Related to emission control system.
– 25 –
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Initial
Every
6
Pre-Ope-
ration
1
3
12
No.
Item
Remarks
check
month
months months months
(daily)
or 20 Hr or 50 Hr or 100 Hr or 300 Hr
Check fuel hose
for crack or da-
mage. *Replace
if necessary.
9. Fuel Line
0
0
**Choke lever
for YG4000D
Check choke
YG5200D operation.
10.
YG6600D
Check for fan
damage.
11. Cooling System
12. Starting System
0
0
Check recoil
starter operation.
0
More frequently
if necessary.
**
13.*
Decarbonization
Check the voltage
meter indication or
pilot light.
14. Generation
G.F.C.I. receptacle
0
0
for YG4000D
YG5200D
Check operation
*Repair if
necessary.
.
15.
YG6600D
YG6600DE
Check all fittings
and fasteners.
Correct if
Fittings/
Fasteners
16*
17.
0
necessary.
Check battery fluid
level. Add distilled
water.
0
Battery
for EF4000DE
EF5200DE
*Check specific
gravity and brea-
ther pipe ope-
ration. Correct if
necessary.
EF6600DE
YG6600DE
0
: It is recommended that these items be serviced by a Yamaha dealer.
: Related to emission control system.
*
**
cC
Use only Yamaha specified genuine parts for replacement. Ask an authorized
Yamaha dealer for further attention.
– 26 –
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AE00971
SPARK PLUG INSPECTION
You should periodically remove and inspect the spark
plug.
1. Check for discoloration and remove the carbon.
Standard electrode color:
Tan Color
760-011
2. Check the spark plug type and gap.
Standard Spark Plug:
BPR4ES (NGK)
Spark Plug Gap:
a
0.7–0.8 mm (0.028–0.031 in)
760-001a
a Gap
3. Install the spark plug.
Spark Plug Torque:
20 N•m (2 kgf•m, 14 lbf•ft)
AE00431
CARBURETOR ADJUSTMENT
The carburetor is a vital part of the engine. Adjusting
should be left to a Yamaha dealer with the profession-
al knowledge, specialized data, and equipment to do
so properly.
– 27 –
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AE00972
ENGINE OIL REPLACEMENT
1. Place the machine on a level surface and warm
up the engine for several minutes.
Then stop the engine.
2. Remove the oil filler cap.
3. Place an oil pan under the engine. Remove the oil
drain plug so that the oil can be completely
drained.
e
4. Check the drain plug, gasket, oil filler cap and O-
ring.
If damaged, replace.
w
1 Oil drain plug
2 Gasket
q
700-067
3 O-ring
5. Reinstall the oil drain plug.
Drain Plug Torque:
30 N•m (3.0 kgf•m, 22 lbf•ft)
6. Add engine oil to the upper level.
1 Upper level
Recommended oil:
q
å
YAMALUBE 4 (10W-30) or SAE 10W-30
type SE motor oil
SAE #30
SAE #20
∫
ç
∂
700-006a
SAE 10W
0°C
Engine oil quantity:
25°C
EF4000DE/YG4000D:
A YAMALUBE 4(10W-30)
1.0 L (0.88 Imp qt, 1.06 US qt)
EF5200DE/EF6600DE/YG5200D/YG6600D/
YG6600DE:
D SAE 10W
C SAE #20
B SAE #30
32°F
80°F
1.1 L (0.97 lmp qt, 1.16 US qt)
700-065
NOTE:
Recommended engine oil classification:
API Service “SE” or “SF”.
cC
Be sure no foreign material enters the crankcase.
– 28 –
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AE00914
A
AIR FILTER
1. Remove the air filter cover and element.
2. Wash the element in solvent and dry.
3. Oil the element and squeeze out excess oil.
The element should be wet but not dripping.
q
Recommended oil:
Foam-air-filter oil
or
SAE #20 motor oil
cC
Do not wring out the element.
This could cause it to tear.
NOTE:
For EF4000DE/YG4000D, the dry foam urethane
(sponge) 1 is installed to absorb any excessive oil
that comes out of the air filter element. Therefore do
not apply oil to the sponge 1. If it gets oily, squeeze
out the oil.
710-058a
B
4. Insert the element into the air filter.
NOTE:
Be sure the element sealing surface matches the air
filter so there is no air leak.
cC
The engine should never run without the element;
excessive piston and cylinder wear may result.
w
Never use solvent while smoking or in the vicinity
of an open flame.
å EF4000DE/YG4000D
∫ EF5200DE/EF6600DE/YG5200D/YG6600D/YG6600DE
710-037a
– 29 –
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AE00461
FUEL COCK
w
Never use or be near fuel and solvent while smok-
ing or in the vicinity of an open flame.
1. Stop the engine.
2. Turn the fuel cock lever to “OFF”.
3. Remove the fuel cock cup and gasket.
4. Clean the cup with solvent and wipe it off.
5. Check the gasket. Replace it if damaged.
6. Reinstall the gasket and fuel cock cup.
w
Be sure the fuel cock cup is tightened securely.
705-065a
AE00471
FUEL TANK FILTER
1. Remove the fuel tank cap and filter.
q
1 Filter
2. Clean the filter with solvent.
If damaged, replace.
3. Wipe the filter and insert it.
w
Be sure the tank cap is tightened securely.
707-043b
– 30 –
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AE00443
MUFFLER SCREEN AND SPARK ARRESTER
(For EF4000DE/YG4000D)
w
The engine and muffler will be very hot after the
engine has been run.
Avoid touching the engine and muffler while they
are still hot with any part of your body or clothing
during inspection or repair.
741-001
A
B
q
q
1. Remove the muffler screen.
1 Muffler screen
2 Screw
w
w
711-055
å EF4000DE
∫ YG4000D
2. Use a flathead screw driver to pry the spark
arrester out from the muffler.
711-012b
3. Remove the spark arrester.
q
1 Spark arrester
711-012d
4. Remove the carbon deposits on the muffler
screen and spark arrester using a wire brush.
711-022
cC
When cleaning, use the wire brush lightly to avoid
damaging or scratching of the muffler screen and
spark arrester.
711-050
– 31 –
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5. Check the muffler screen and spark arrester.
Replace them if damaged.
6. Install the spark arrester.
w
q
NOTE:
Align the spark arrester projection with the hole in the
muffler pipe.
711-012a
1 Projection
2 Hole
A
B
7. Install the muffler screen.
å EF4000DE
∫ YG4000D
711-057
AE00841
MUFFLER SCREEN AND SPARK ARRESTER
(For EF5200DE/EF6600DE/YG5200D/YG6600D/
YG6600DE)
w
The engine and muffler will be very hot after the
engine has been run.
741-001
Avoid touching the engine and muffler while they
are still hot with any part of your body or clothing
during inspection or repair.
q
1. Remove the muffler protector and muffler screen.
1 Muffler protector
2 Muffler screen
3 Screw
711-056
e
w
2. Use a flathead screw driver to pry the spark
arrester out from the muffler.
711-028
– 32 –
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3. Remove the spark arrester.
q
1 Spark arrester
711-029
4. Remove the carbon deposits on the muffler
screen and spark arrester using a wire brush.
711-022
cC
When cleaning, use the wire brush lightly to avoid
damaging or scratching of the muffler screen and
spark arrester.
5. Check the muffler screen and spark arrester.
Replace them if damaged.
711-050
6. Install the spark arrester.
w
q
NOTE:
Align the spark arrester projection with the hole in the
muffler pipe.
1 Projection
2 Hole
711-029a
7. Install the muffler screen and muffler protector.
711-027a
– 33 –
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AE00842
BATTERY
(for EF4000DE/EF5200DE/EF6600DE/YG6600DE)
Replenishing the battery fluid
1. Check the fluid level. The level should be between
the upper and lower level marks.
762-039
1 Upper level
2 Lower level
q
w
2. Add only distilled water if necessary.
cC
9 Normal tap water contains minerals which are
harmful to a battery; therefore, refill only with
distilled water.
762-001a
9 Do not disconnect the battery during engine
operation.
9 Avoid operating the generator with the battery
removed.
762-002
w
Battery electrolyte is poisonous and dangerous,
causing severe burns, etc. It contains sulfuric (sul-
phuric) acid. Avoid contact with skin, EYES or
clothing.
Antidote:
EXTERNAL-Flush with water.
INTERNAL-Drink large quantities of water or milk.
Follow with milk of magnesia, beaten egg or veg-
etable oil. Call physician immediately.
Eyes: Flush with water for 15 minutes and get
prompt medical attention. Batteries produce explo-
sive gases. Keep sparks, flame, cigarettes, etc.
away. Ventilate when charging or using in closed
space. Always cover eyes when working near bat-
teries. KEEP OUT OF REACH OF CHILDREN.
762-012
– 34 –
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AE00895
FUSE REPLACEMENT
(for EF4000DE/EF5200DE/EF6600DE/YG6600DE)
w
Be sure to use specified fuse. A wrong fuse will
cause electrical system damage and A FIRE HAZ-
ARD.
cC
Be sure the engine switch is turned off to prevent
accidental short circuiting.
1. Loosen the control panel screws and then remove
779-033a
the control panel.
2. Replace the blown fuse with one of proper amper-
age.
Specified fuse: 10A
NOTE:
If the fuse immediately blows again, consult a Yamaha
dealer.
779-034a
AE00501
G.F.C.I. RECEPTACLE TEST
(for YG4000D/YG5200D/YG6600D/YG6600DE)
1. Start the engine.
2. Turn the AC switch (N.F.B.) to the “ON” position.
3. Press the test button 1, then check the position of
the reset button 2.
w
q
763-083a
G.F.C.I. Reset
G.F.C.I. Receptacle
Button Position
Operation
e
r
after Test
Pop Out 3
Stay In 4
Correct
Incorrect
763-059
4. If G.F.C.I. operation is correct, push in the reset
button.
If the G.F.C.I. operates incorrectly, consult a
Yamaha dealer.
w
Do not operate the generator with a faulty G.F.C.I.
circuit. Electric shock could occur. Have the gen-
erator repaired by a qualified mechanic.
– 35 –
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AE00512
TROUBLESHOOTING
Engine won’t start
1. Fuel systems
No fuel supplied to combustion chamber.
2 No fuel in tank .... Supply fuel.
2 Clogged fuel line .... Clean fuel line.
2 Foreign matter in fuel cock .... Clean fuel cock.
2 Clogged carburetor .... Clean carburetor.
707-001
705-037a
2. Engine oil system
Insufficient
2 Oil level is low .... Add engine oil.
700-006
3. Electrical systems
A
B
2 Engine switch to “ON”.
Poor spark
2 Spark plug dirty with carbon or wet .... Remove
carbon or wipe spark plug dry.
2 Faulty ignition system .... Consult dealer.
763-127d
4. Compression
Insufficient
2 Worn out piston and cylinder .... Consult dealer.
2 Loose cylinder head nuts .... Tighten nuts proper-
ly.
2 Damaged gasket .... Replace gasket.
760-009
– 36 –
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AE00515
FOR EF4000DE/EF5200DE/EF6600DE/YG6600DE
A
ENGINE DOES NOT START
B
Turn the engine switch to “ON”, then turn
the engine switch to “START” (for
EF4000DE/EF5200DE/EF6600DE) or
push the starter switch (for YG6600DE).
And check if the starter motor cranks.
763-213
C
Cranks
D
Does not crank
F
Turn the engine switch to “START” or
push the starter switch, and check if the
oil warning light flickers.
G
Does not flicker
H
Flickers
L
Turn the engine switch to “START” or
push the starter switch, and check the
spark plug for spark strength.
(See “WARNING”).
w
9 To prevent FIRE HAZARDS be
sure fuel is not present in the
spark plug area.
9 To prevent FIRE HAZARDS be
sure to place the spark plug
as far way as possible from
the spark plug hole and car-
buretor area.
9 To prevent ELECTRIC SHOCK
do not hold spark plug lead
with hand while testing.
M
R
Engine does not start.
Check the following
N
Engine starts.
U
Clean or Replace; Consult a
S
T
Clogged
OK
Yamaha dealer.
9 Fuel cock clogging
9 Air cleaner element
clogging.
V
Consult a Yamaha dealer.
– 37 –
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E
Faulty battery and/or starter motor.
Consult a Yamaha dealer.
I
Check engine oil level.
J
OK
Consult a
Yamaha dealer.
K
Level low
Add engine oil.
O
Check the spark plug.
9 Type:
9 Gap:
P
Incorrect
Replace or
Adjust Gap.
Q
OK
Clean the spark
plug.
– 38 –
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AE00515
FOR YG4000D/YG5200D/YG6600D
A
ENGINE DOES NOT START
B
Turn the engine switch to “ON”, then pull
the recoil starter and check if the oil warn-
ing light flickers.
E
F
Check engine oil level.
OK
Consult a
Yamaha dealer.
G
Level low
C
H
Does not flicker
D
Flickers
Add engine oil.
Pull the recoil starter and check the spark
plug for spark strength.
(See “WARNING”)
K
Check the spark plug.
9 Type:
9 Gap:
L
Incorrect
Replace or
Adjust Gap.
M
OK
w
9 To prevent FIRE HAZARDS be
sure fuel is not present in the
spark plug area.
Clean the spark
plug.
9 To prevent FIRE HAZARDS be
sure to place the spark plug as
far way as possible from the
spark plug hole and carburetor
area.
9 To prevent ELECTRIC SHOCK do
not hold spark plug lead with
hand while testing.
Engine does not
start.
I
J
Engine starts.
N
Q
R
Check the following
Clean or Replace; Consult a
Yamaha dealer.
O
P
Clogged
OK
9 Fuel cock clogging
9 Air cleaner element
clogging.
Consult a Yamaha dealer.
– 39 –
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AE00601
STORAGE
q
å
Long term storage of your machine will require some
preventive procedures to guard against deterioration.
AE00611
DRAIN THE FUEL
1. Drain the fuel tank, fuel cock, and carburetor float
a
∫
bowl.
a Carburetor drain plug
w
2. Pour a cup of SAE 10W30 or 20W40 motor oil into
a
the tank.
3. Shake the tank to coat the inner surfaces thor-
oughly.
4. Drain off the excess oil.
r
e
å EF4000DE/EF5200DE/YG4000D/YG5200D
∫ EF6600DE/YG6600D/YG6600DE
707-084
AE00621
ENGINE
1. Remove the spark plug, pour about one table-
spoon of SAE 10W30 or 20W40 motor oil into the
spark plug hole and reinstall the spark plug. Recoil
start the engine by turning over several times (with
ignition off) to coat the cylinder walls with oil.
2. Pull the recoil starter until you feel compression.
Then stop pulling. (This prevents the cylinder and
valves from rusting).
3. Clean exterior of the generator and apply a rust
inhibitor.
4. Store the generator in a dry, well-ventilated place,
with the cover placed over it.
5. The generator must remain in a vertical position
when stored, carried or operated.
712-010
– 40 –
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AE00633
BATTERY
(for EF4000DE/EF5200DE/EF6600DE/YG6600DE)
1. Remove the battery.
2. Check the fluid level. Add only distilled water if
necessary. (See page 34; “BATTERY-
Replenishing the battery fluid”)
762-003
3. After checking the fluid level, charge the battery.
4. Store the battery in a cool, dark and dry place and
charge it once a month.
Do not store the battery in an excessively warm or
cold place [i.e., less than 0°C (30°F) or more than
30°C (90°F)].
w
9 Disconnect the negative lead first, then the
positive lead from the battery.
9 Connect the positive lead first, then the nega-
tive lead to the battery when installing the bat-
tery.
9 Never smoke or make and break connections
at the battery while charging. Sparks may
ignite the battery gas.
9 Be sure the battery terminals are tight and that
the battery vent tube is properly routed and is
securely attached to the battery.
cC
9 Do not disconnect the battery during engine
operation.
9 Avoid operating the generator with the battery
removed.
AE00632
RECOMMENDED BATTERY
(for EF4000DE/EF5200DE/EF6600DE/YG6600DE)
Recommended battery:
Capacity: 12V/26A•h
NOTE:
9 Clamp the red wire to the positive (+) terminal and
the black wire to the negative (–) terminal of the
battery. Do not reverse these positions.
9 Be sure the battery is installed on the battery
mount tray securely.
– 41 –
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AE00789
EXHAUST EMISSION CONTROL SYSTEM
AND COMPONENTS
Item
Acronym
9 CARB. ASSY., LH. & JT., ......................CARB (Carburetor)
CARBURETOR2
9 T.C.I. MAGNETO ASSY. & .....................EI (Electronic Ignition)
PLUG, SPARK
9 CRANKCASE1 & HEAD, .......................PCV (Positive Crankcase
CYLINDER1
Ventilation)
9 AIR FILTER ASSY. .................................ACL (Air Cleaner)
9 MUFF., 2, CAP, NET, WIRE2 &
ARRESTER, SPARK
The above items and the corresponding acronyms are provided in accordance with U.S.
EPA REGULATIONS FOR NEW NONROAD SPARK-IGNITION NONHANDHELD
ENGINES and the CALIFORNIA REGULATIONS FOR 1995 AND LATER SMALL OFF-
ROAD ENGINES.
The acronyms conform to the latest version of the SAE’s recommended practice docu-
ment J1930, “Diagnostic Acronyms, Terms, and Definitions For Electrical/Electronic
System”.
It is recommended that these items be serviced by a Yamaha dealer.
– 42 –
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AE00701
SPECIFICATIONS
AE00702
DIMENSIONS
Unit EF4000DEEF5200DEEF6600DE YG4000D YG5200D YG6600D YG6600DE
Overall Length mm (in) 804 (31.7) 894 (35.2) 894 (35.2) 580 (22.8) 670 (26.4) 670 (26.4) 894 (35.2)
Overall Width mm (in) 525 (20.7) 520 (20.5) 520 (20.5) 525 (20.7) 510 (20.1) 510 (20.1) 520 (20.5)
Overall Height mm (in) 510 (20.1) 510 (20.1) 510 (20.1) 560 (22.0) 560 (22.0) 560 (22.0) 560 (22.0)
Dry Weight
kg (lb) 66 (145.5) 90 (198.4) 90 (198.4) 60 (132.3) 85 (187.3) 85 (187.3) 92 (202.8)
AE00704
ENGINE
EF6600DE/
YG6600D/
YG6600DE
EF4000DE/
YG4000D
EF5200DE/
YG5200D
Unit
Type
Air cooled 4-stroke gasoline OHV
Inclined, 1 cylinder
301
Cylinder Arrangement
Displacement
Bore × Stroke
cm3
251
357
mm (in)
75.0 × 57.0
78.0 × 63.0
(3.07 × 2.48)
85.0 × 63.0
(3.35 × 2.48)
(2.95 × 2.24)
Rated Output
Operation Hours
Fuel
kW (HP)/r/min
Hr
4.5 (6.1)/3600
5.8 (7.8)/3600
7.1 (9.5)/3600
8.5
7.6
6.6
Unleaded gasoline
Fuel Tank Capacity L (Imp gal, US gal) 18.5 (4.07, 4.89)
21.0 (4.62, 5.55)
1.1 (0.97, 1.16)
Engine Oil Quantity L (Imp qt, US qt)
Ignition System
1.0 (0.88, 1.06)
TCI
Spark Plug: Type
BPR4ES (NGK)
0.7–0.8 (0.028–0.031)
73
Gap
mm (in)
dB (A)
Noise Level*
69
74
* : Measured at rated operation from 7 m (23 ft) distance.
AE00707
GENERATOR
Unit EF4000DE EF5200DE EF6600DE YG4000D YG5200D YG6600D YG6600DE
AC Output
Rated voltage
Rated frequency
Rated current
Rated output
Safety Device: Type
V
Hz
A
120/240
60
29.2/14.6 37.5/18.8 50.0/25.0 29.2/14.6 37.5/18.8 50.0/25.0 50.0/25.0
kVA
3.5
4.5
6.0
3.5
4.5
6.0
6.0
N.F.B.
– 43 –
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AE00751
WIRING DIAGRAM
EF4000DE
G/Y
y
L
L
R
L
R
R
L
R
G/Y
G/Y
R
G/Y
R
R
R
t
V
G/Y
Br
Br
u
i
o
Br
Br
Br
y
B
Br
Br
q
Br
e
!
!
B/W Br
!
B
B
R
R
G
G
Y
L/W
L/W
G
G
OFF
ON
Y
G
G
START
W
W
G
G
W
G
W
G
W
G
W
G
Br
W
W
B/W
!
R/B
B
!
!
!
B
R
r
@
!
B/W R/W Br
R/W
B
B
Br
R
!
G
Y
B/W
B/W
Y
W
R
B/W B/W
w
R
G/R
L
Y
B/W
B
R
R/W
R
W
G/R
R
R
R
B/W R/B
R/W
B/W
Br
B
B
Y
Y
Y
L
!
W
B/W
R/W
W
G/R
L/W
W
W
Y
G/R
Y
B
L/W
B
Y
W
Y
L/W
L/W
G/R
G/R
B
RR
G/R
G/R
B
B
B
B/W
W
R
R/W
@
@
@
-
+
@
@
M
@
@
770-030
Color code
1 Rotor assembly
2 Stator assembly
3 Main coil
4 Sub coil
5 Voltage meter
6 N.F.B.
7 AC receptacle
8 AC receptacle
9 AC receptacle
0 Engine switch
q Remote control terminal
w Rectifier
t Condenser
B
Black
y Economy idle unit
u Oil warning unit
i Oil warning light
o Economy idle switch
p Solenoid valve
a Battery
s Carburetor heater
d Oil level switch
f Charging coil
g T.C.I.unit
Br
G
L
Brown
Green
Blue
R
W
Red
White
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
h Spark plug
Y
Yellow
e Fuse
j Starter motor
r Rectifier/regulator
– 44 –
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EF5200DE
u
u
i
!
y
q
e
t
o
!
!
!
r
!
!
B
B/W
R
R
Br
OFF
ON
!
START
w
B
B/W
Br
!
R/B
G
Y
@
@
!
B
R
@
@
B/W R/W Br
R/W
R
B
B
Br
R
B/W B/W
B
B/W R/W R/B Br
R
B
B/W
R
R/W
Y
Y
!
G/R
L/W
B
G/R
L/W
B
G/R G/R
B
B
L/W
Y
Y
L/W
Y
Y
@
R
R/W
@
@
@
#
-
+
M
@
@
770-031
Color code
1 Rotor assembly
2 Stator assembly
3 Main coil
4 Sub coil
5 Exciter coil
u AVR
i Condenser
o Economy idle unit
p Oil warning unit
a Oil warning light
B
Black
Br
G
L
Brown
Green
Blue
R
W
Red
White
6 Voltage meter
7 N.F.B.
8 AC receptacle
9 AC receptacle
0 AC receptacle
q Engine switch
s Economy idle switch
d Solenoid valve
f Battery
g Carburetor heater
h Oil level switch
j Charging coil
k T.C.I.unit
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
w Remote control terminal
e Rectifier
Y
Yellow
l Spark plug
r Fuse
; Starter motor
t Rectifier/regulator
y Voltage adjuster
– 45 –
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EF6600DE
u
u
L
R
G/Y
R
G/Y
G/Y
R
L
i
!
y
q
r
o
e
t
Br
Br
Br
G/Y
!
B
!
!
!
!
B
B/W
R
R/W L/R
Y
OFF
ON
START
!
B
B/W
R
R/W L/R
Y
w
!
R/B
@
G
Y
@
!
B
R
@
@
B/W B/W
R/W R/W
B
R
B
R
R/W Br
B/W
L/R
Y
L/R
Y
B
B/W
R
R/W
Y
L/R
R
R
B
B/W R/W R/B Br
R
Y
Y
!
G/R
L/W
B
G/R
L/W
B
B
G/R G/R
B
L/W
Y
Y
L/W
Y
Y
@
@
R
R/W
@
@
#
#
-
+
@
M
@
770-032
Color code
1 Rotor assembly
u AVR
B
Black
2 Stator assembly
3 Main coil
4 Sub coil
5 Exciter coil
6 Voltage meter
7 N.F.B.
8 AC receptacle
9 AC receptacle
0 AC receptacle
q Engine switch
i Condenser
Br
G
L
R
W
Brown
Green
Blue
Red
White
o Economy idle unit
p Oil warning unit
a Oil warning light
s Economy idle switch
d Solenoid valve
f Battery
g Carburetor solenoid valve
h Carburetor heater
j Oil level switch
k Charging coil
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
w Remote control terminal
e Rectifier
Y
Yellow
l T.C.I.unit
r Fuse
; Spark plug
t Rectifier/regulator
y Voltage adjuster
z Starter motor
– 46 –
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YG4000D
G/Y
y
t
L
G/Y
R
G/Y
R
G/Y
R
L
L
L
R
R
u
R
R
Br
Br
i
o
G
y
Br
Br
Br
G/Y
y
Br
Br
q
e
!
B
G
G
Y
L/W
L/W
G
G
!
Y
W
G
G
W
W
G
W
G
W
G
W
G
W
G
G
W
!
!
r
G
Y
!
w
!
!
B/W
B/W
Y
Y
L
Y
B/W
B
B
B/W
Y
Y
L
B/W
!
L
G/R
L/W
W
W
L
G/R
B
L/W
B
L/W
Y
Y
L/W
Y
B
B/W
Y
@
B
!
!
@
Color code
1 Rotor assembly
2 Stator assembly
3 Main coil
4 Sub coil
5 Pilot light
w Condenser
B
Black
Brown
Green
Blue
e Economy idle unit
r Oil warning unit
t Oil warning light
y Economy idle switch
u Solenoid valve
i Oil level switch
o Charging coil
p T.C.I.unit
Br
G
L
R
W
Red
White
6 N.F.B.
7 GFCI receptacle
8 AC receptacle
9 AC receptacle
0 Engine switch
q Rectifier
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
a Spark plug
Y
Yellow
– 47 –
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YG5200D
u
G
Gy
L
R
L
L
G/Y
R
G/Y
R
G/Y
G/Y
R
L
i
R
R
!
R
V
y
q
r
o
o
e
R
u
Br
t
Br
u
Br
Br
Br
B
G/Y
Br
Br
!
B
G
Y
L/W
!
Y
Y
G
G
Y
G
Y
G
G
G
G
G
B
B
!
W
W
W
G
W
G
B
B
B
B
W
W
W
W
B
Y
B
Y
R
G
R
G
w
!
!
!
!
!
B/W
Y
Y
B/W
B
L
Y
B/W
B
B/W
L
B/W
!
G/R
G/R
G/R
L/W
B
L/W
B
G/R
B
B
G
/R
L/W
Y
Y
L/W
Y
Y
@
@
@
@
Color code
1 Rotor assembly
2 Stator assembly
3 Main coil
e AVR
r Condenser
t Economy idle unit
y Oil warning unit
u Oil warning light
i Economy idle switch
o Solenoid valve
p Oil level switch
a Charging coil
s T.C.I.unit
B
Black
Br
G
L
Brown
Green
Blue
4 Sub coil
5 Exciter field coil
6 Voltage meter
7 N.F.B.
8 GFCI receptacle
9 AC receptacle
0 AC receptacle
q Engine switch
w Rectifier
R
W
Red
White
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
d Spark plug
Y
Yellow
– 48 –
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YG6600D
u
G
Gy
L
R
L
L
G/Y
R
G/Y
R
G/Y
G/Y
R
L
i
R
R
!
R
V
y
q
r
e
R
u
o
o
Br
t
Br
u
Br
Br
Br
B
G/Y
Br
Br
!
B
G
Y
L/W
!
Y
Y
G
G
Y
G
Y
G
G
G
G
G
B
B
!
W
W
W
G
W
G
B
B
B
B
W
W
W
W
B
Y
B
Y
R
G
R
G
w
!
!
!
!
!
B/W
Y
Y
B/W
B
L
Y
B/W
B
B/W
L
B/W
!
G/R
G/R
G/R
L/W
B
L/W
B
G/R
B
B
L/W
G/R
Y
Y
L/W
Y
Y
L/R
L/R
@
@
@
@
@
770-027
Color code
1 Rotor assembly
2 Stator assembly
3 Main coil
e AVR
r Condenser
t Economy idle unit
y Oil warning unit
u Oil warning light
B
Black
Br
G
L
Brown
Green
Blue
4 Sub coil
5 Exciter field coil
6 Voltage meter
7 N.F.B.
R
W
Red
White
i Economy idle switch
o Solenoid valve
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
8 GFCI receptacle
9 AC receptacle
0 AC receptacle
q Engine switch
w Rectifier
p Carburetor solenoid valve
a Oil level switch
s Charging coil
d T.C.I.unit
f Spark plug
Y
Yellow
– 49 –
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YG6600DE
u
G
Gy
L
R
L
L
G/Y
R
G/Y
R
G/Y
G/Y
R
L
i
R
R
R
!
V
y
q
r
e
R
Br
o
o
u
t
Br
u
Br
Br
Br
G/Y
Br
Br
!
B
G
Y
L/W
!
Y
Y
G
G
Y
G
Y
G
G
G
G
G
B
W
W
G
B
B
W
W
G
B
!
B
W
B
B
W
B
W
W
Y
R
G
Y
R
G
!
!
w
B
!
R/B
!
@
@
!
B
R
@
@
R/W R/W Br
R
R/W
Y
Y
B/W
W
R
G/R
Y
L
Y
B/W
B
G/R
R
R
B
B
R/WR/W
R/B
Br
R
B/W
B
L/R
W
RR/W
B/W
L
B/W
R/W
W
!
G/R
G/R
G/R
L/W
B
L/W
B
G/G/R
G/R
B
B
L/W
G/R
B
Y
L/W
Y
Y
Y
L/R
L/W
R
@
@
R
R/W
@
@
#
-
+
M
@
K
@
770-028b
Color code
1 Rotor assembly
u AVR
B
Black
2 Stator assembly
3 Main coil
4 Sub coil
i Condenser
Br
G
L
Brown
Green
Blue
o Economy idle unit
p Oil warning unit
a Oil warning light
5 Exciter coil
R
W
Red
White
6 Voltage meter
7 N.F.B.
s Economy idle switch
d Solenoid valve
f Battery
g Carburetor solenoid valve
h Carburetor heater
j Oil level switch
k Charging coil
B/W Black/White
G/R Green/White
G/Y Green/Yellow
L/W Blue/White
R/W Red/White
8 GFCI receptacle
9 AC receptacle
0 AC receptacle
q Starter switch
w Engine switch
Y
Yellow
e Remote control terminal
r Rectifier
l T.C.I.unit
; Spark plug
t Fuse
z Starter motor
y Rectifier/regulator
– 50 –
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AE00761
AE00795
BATTERY TRAY INSTALLATION
(for EF4000DE/EF5200DE/EF6600DE/
YG6600DE)
ENGINE HANGER INSTALLATION
(for YG4000D/YG5200D/YG6600D/
YG6600DE)
AE00762
OPTIONAL PARTS INSTALLATION
AE00763
Two wheel kit
– 51 –
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— MEMO —
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— MEMO —
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PRINTED IN JAPAN
!
03 9 08 – 1.1 × 1
PRINTED ON RECYCLED PAPER
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