2001 YAMAHA YFM600FWA engine

EBU00015
CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ....................... 1-1
SAFETY INFORMATION ........................ 2-1
DESCRIPTION AND MACHINE
IDENTIFICATION .................................... 3-1
Identification number records ........... 3-3
Key identification number ................. 3-5
Vehicle identification number ........... 3-5
Model label ......................................... 3-7
CONTROL FUNCTIONS ......................... 4-1
Main switch......................................... 4-1
Indicator lights .................................... 4-3
Oil temperature warning light
checking method .............................. 4-5
Speedometer .................................... 4-11
Fuel gauge ........................................ 4-11
Handlebar switches .......................... 4-13
Throttle lever .................................... 4-19
Speed limiter .................................... 4-21
Front brake lever .............................. 4-23Rear brake pedal and lever.............. 4-25
Parking brake .................................... 4-27
Drive select lever .............................. 4-29
Recoil starter..................................... 4-29
Fuel tank cap..................................... 4-31
Fuel cock ........................................... 4-33
Starter (choke) “ ” ........................ 4-35
Seat ................................................... 4-37
Storage box ...................................... 4-39
Front carrier ...................................... 4-39
Rear carrier ....................................... 4-39
Rear shock absorber
adjustment...................................... 4-41
Auxiliary DC connector .................... 4-43
PRE-OPERATION CHECKS .................... 5-1
Front and rear brakes......................... 5-7
Fuel .................................................... 5-11
Engine oil .......................................... 5-15
Final gear oil/Differential
gear oil ............................................ 5-19
Throttle lever .................................... 5-19
Fittings and Fasteners...................... 5-21
Lights................................................. 5-211
2
3
4
5

Switches ........................................... 5-21
Tires .................................................. 5-23
How to measure tire pressure ........ 5-27
Tire wear limit .................................. 5-29
OPERATION ........................................... 6-1
Starting a cold engine ....................... 6-3
Starting a warm engine ..................... 6-9
Warming up ........................................ 6-9
Drive select lever operation and
reverse driving ............................... 6-11
Reverse lock release wire ................ 6-15
Engine break-in ................................ 6-17
Parking .............................................. 6-19
Parking on a slope ........................... 6-21
Accessories and loading ................. 6-23
RIDING YOUR ATV ................................ 7-1
Getting to know your ATV ................. 7-3
Ride with care and good
judgement ........................................ 7-5
Be careful where you ride ............... 7-27
Turning your ATV ............................ 7-39
Climbing uphill ................................. 7-45
Riding downhill ................................ 7-55
Crossing a slope ............................... 7-59Crossing through shallow
water ............................................... 7-63
Riding over rough terrain ................ 7-67
Sliding and skidding ........................ 7-69
What to do if ..................................... 7-73
What to do ........................................ 7-73
PERIODIC MAINTENANCE AND
ADJUSTMENT ....................................... 8-1
Owner’s manual and tool kit ............. 8-3
Periodic maintenance/
lubrication ........................................ 8-7
Engine oil .......................................... 8-15
Final gear oil ..................................... 8-25
Differential gear oil .......................... 8-29
Front axle boots ............................... 8-33
Spark plug inspection ...................... 8-35
Air filter cleaning.............................. 8-39
Carburetor adjustment .................... 8-45
Idle speed adjustment ..................... 8-47
Valve clearance adjustment ............ 8-49
Throttle lever adjustment ................ 8-49
Front brake pad inspection ............. 8-51
Rear brake shoe inspection ............. 8-51
Inspecting the brake fluid level ....... 8-53
Brake fluid replacement .................. 8-57
6
7
8

2-1
EBU00661
SAFETY INFORMATION
AN ATV IS NOT A TOY AND CAN BE
HAZARDOUS TO OPERATE. An ATV handles
differently from other vehicles including
motorcycles and cars. A collision or rollover
can occur quickly, even during routine
maneuvers such as turning and riding on hills
or over obstacles, if you fail to take proper
precautions.
SEVERE INJURY OR DEATH can result if you
do not follow these instructions:
●Read this manual and all labels carefully
and follow the operating procedures de-
scribed.
●Never operate an ATV without proper in-
struction.
●Always follow the age recommendation:
– A child under 16 years old should never
operate an ATV with engine size greater
than 90cc.
●Never allow a child under age 16 to operate
an ATV without adult supervision, and nev-
er allow continued use of an ATV by a child
if he or she does not have the abilities to op-
erate it safely.

2-15
WARNING
●Always turn off the engine when refuel-
ing.
●Do not refuel right after the engine has
been running and is still very hot.
●Do not spill gasoline on the engine or ex-
haust pipe/muffler when refueling. Never
refuel while smoking, or while in the vi-
cinity of sparks, open flames, or other
sources of ignition such as the pilot lights
of water heaters and clothes dryers. Gas-
oline can catch fire and you could be
burned.
●When transporting the machine in anoth-
er vehicle, be sure it is kept upright and
that the fuel cock is in the “OFF” position.
Otherwise, fuel may leak out of the carbu-
retor or fuel tank.
●Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gaso-
line vapor, or get some gasoline in your
eyes, see your doctor immediately. If gas-
oline spills on your skin, wash with soap
and water. If gasoline spills on your cloth-
ing, change your clothes.

2-17
WARNING
Always operate your machine in an area with
adequate ventilation. Never start or run the
engine in a closed area. Exhaust fumes are poi-
sonous and may cause loss of consciousness
and death within a short time.

3-1
EBU00032
DESCRIPTION AND MACHINE
IDENTIFICATION
1. Storage box
2. Air filter
3. Fuel tank cap
4. Oil cooler / cooling fan
5. Reverse lock release
wire
6. Rear brake pedal
7. V-belt housing
8. Auxiliary DC connector
9. Drive select lever
10. Fuel cock
11. Rear shock absorber
12. Fuses13. Recoil starter
14. Engine oil level window
15. Oil filter
16. Rear brake lever
17. Left handlebar switches
18. Parking brake
19. Starter (choke) lever
20. Speedometer
21. Main switch
22. Fuel level gauge
23. On command four-
wheel drive switch
24. Throttle lever
25. Front brake lever
26. Horn
NOTE:
The machine you have purchased may differ
slightly from those shown in the figures of this
manual.

4-1
1. Main switch
1. Contacteur à clé
1. Interruptor principal
EBU00040
CONTROL FUNCTIONS
EBU00041
Main switch
Functions of the respective switch positions
are as follows:
ON:
Engine can be started only at this position and
the headlight and taillight come on when the
light switch is on.
OFF:
All electrical circuits are switched off. The key
can be removed in this position.

4-3
1. Four-wheel drive indicator light “4WD”
2. Reverse indicator light “REVERSE”
3. Neutral indicator light “NEUTRAL”
4. Oil temperature indicator light “OIL TEMP”
1. Témoin 4 × 4 “4WD”
2. Témoin de marche arrière “REVERSE”
3. Témoin de point mort “NEUTRAL”
4. Témoin d’avertissement de la température d’huile “OIL TEMP”
1. Luz de control del modo de tracción de cuatro
ruedas “4WD”
2. Luz de control de marcha atrás “REVERSE”
3. Luz de control de punto muerto “NEUTRAL”
4. Luz de aviso de la temperatura del aceite “OIL TEMP”
EBU00043
Indicator lights
EBU00044
Reverse indicator light “REVERSE”
This indicator light comes on when the trans-
mission is in reverse.
EBU00045
Neutral indicator light “NEUTRAL”
This indicator light comes on when the trans-
mission is in neutral.
EBU00732
Oil temperature warning light “OIL TEMP”
When the oil temperature reaches a specified
level, this light comes on to warn that the en-
gine oil temperature is too hot. If the warning
light comes on during operation, stop the en-
gine as soon as it is safe to do so and allow the
engine to cool down for about 10 minutes.
CAUTION:
●The engine may overheat if the ATV is
overloaded. If this happens, reduce the
load to specification.
●Restart after making sure that the warn-
ing light is out. Continuous use while the
warning light is on may cause damage to
the engine.