2001 YAMAHA YFM400F engine coolant

Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600TOC-
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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
Coolant temperature indicator light
checking method .............................. 4-7
Speedometer .................................... 4-11
Fuel gauge ........................................ 4-13
Handlebar switches .......................... 4-15
Throttle lever .................................... 4-21
Speed limiter .................................... 4-23
Front brake lever .............................. 4-25Rear brake pedal and lever.............. 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
Front shock absorber
adjustment...................................... 4-41
Rear shock absorber
adjustment...................................... 4-45
Auxiliary DC jack .............................. 4-49
PRE-OPERATION CHECKS .................... 5-1
Front and rear brakes......................... 5-7
Fuel .................................................... 5-11
Engine oil .......................................... 5-15
Final gear oil ..................................... 5-19
Differential gear oil .......................... 5-21
Throttle lever .................................... 5-21
Fittings and Fasteners...................... 5-21
1234
5

ER
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600TOC-
Lights ................................................ 5-23
Switches ........................................... 5-23
Tires .................................................. 5-25
How to measure tire pressure ........ 5-29
Tire wear limit .................................. 5-31
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
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 ................ 7-69
Sliding and skidding ........................ 7-71
What to do if ..................................... 7-75
What to do... ..................................... 7-75
PERIODIC MAINTENANCE AND
ADJUSTMENT ....................................... 8-1
Owner’s manual and tool kit ............. 8-3
Periodic maintenance/
lubrication ........................................ 8-7
Panel removal and installation ....... 8-15
Engine oil .......................................... 8-31
Final gear oil ..................................... 8-41
Differential gear oil .......................... 8-47
Cooling system ................................ 8-53
Changing the coolant ...................... 8-57
Front axle boots ............................... 8-63
Spark plug ........................................ 8-65
Air filter cleaning.............................. 8-71
67
8

3-1
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600-3.frame
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EBU00032
DESCRIPTION AND MACHINE
IDENTIFICATION
1. Rear spring preload
adjusting ring
2. Storage box and tool kit
3. Spark plug
4. Rear brake fluid
reservoir
5. Radiator cap
6. Front spring preload
adjusting ring
7. V-belt case
8. Rear brake pedal
9. Front spring preload
adjusting ring
10. Fuel cock
11. Air filter case
12. Fuses13. V-belt cooling duct
check hose
14. Coolant reservoir
15. Oil filter cartridge
16. Engine oil dipstick
17. Rear brake lever
18. Left handlebar switches
19. Starter (choke)
20. Horn switch
21. Drive select lever
22. Speedometer
23. Main switch
24. Fuel tank cap
25. Auxiliary DC jack
26. Right handlebar switch
27. Throttle lever
28. Front brake lever
NOTE:

The machine you have purchased may differ
slightly from those shown in the figures of this
manual.

4-3
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600-4.frame
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1. Park indicator light “P”
2. Reverse indicator light “R”
3. Neutral indicator light “N”
4. Coolant temperature warning light “ ”
5. Four-wheel-drive indicator light “ ”
1. Témoin de stationnement “P”
2. Témoin de marche arrière “R”
3. Témoin de point mort “N”
4. Témoin d’avertissement de la température du liquide de
refroidissement “ ”
5. Témoin 4x4 “ ”
1. Luz de indicatora de estacionamiento “P”
2. Luz de control de marcha atrás “R”
3. Luz de control de punto muerto “N”
4. Luz de aviso de la temperatura del refrigerante “ ”
5. Luz de control del modo de tracción de cuatro
ruedas “ ”
EBU00043
Indicator lights
EBU00609
Park indicator light “P”
This indicator light comes on when the drive
select lever is in the “P” (park) position.
EBU00602
Reverse indicator light “R”
This indicator light comes on when the trans-
mission is in reverse.
EBU00603
Neutral indicator light “N”
This indicator light comes on when the trans-
mission is in neutral.
EBU00713
Coolant temperature warning light “ ”
When the coolant temperature reaches a spec-
ified level, this light comes on to warn that the
coolant temperature is too hot. If the light
comes on during operation, stop the engine as
soon as it is safe to do so and allow the engine
to cool down for about 10 minutes.

4-5
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600-4.frame
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The coolant temperature warning light circuit
can be checked according to the procedure on
page 4-7.
CAUTION:

l
The engine may overheat if the ATV is
overloaded. If this happens, reduce the
load to specification.
l
Restart after making sure that the light is
out. Continuous use while the light is on
may cause damage to the engine.
EBU00605
Four-wheel-drive indicator light “ ”
This indicator light comes on when the
2WD/4WD switch is in the 4WD position.
NOTE:

Due to the synchronizing mechanism in the dif-
ferential gear case, the light may not come on
until the ATV starts moving.

4-7
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600-4.frame
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EBU00714
Coolant temperature warning light checking method
ACB-09E
Turn the main switch to “ON” and
the engine stop switch to “ ”.
Coolant temperature warning
light does not come on.
Coolant temperature
warning light comes on.
Coolant temperature
warning light does
not come on.
Coolant temperature and
electrical circuit are OK.
Go ahead with riding.
Push the start switch with the
transmission in the neutral position.
Ask a Yamaha dealer to
inspect the electrical circuit.
Coolant temperature
warning light comes
on momentarily.

5-1
Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600-5.frame
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EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brakes
• Check operation, free play, fluid level and fluid leakage.
• Fill with DOT 4 brake fluid if necessary.5-7 ~ 5-9,
8-91 ~ 8-95
Fuel
• Check fuel level.
• Fill with fuel if necessary.5-11 ~ 5-13
Engine oil
• Check oil level.
• Fill with oil if necessary.5-15 ~ 5-17,
8-31 ~ 8-41
Coolant reservoir
• Check coolant level.
• Fill with coolant if necessary.8-53 ~ 8-63
Final gear oil/
Differential gear oil
• Check for leakage. 5-19, 8-41 ~ 8-51
Throttle
• Check for proper throttle cable operation. 5-21, 8-87
Wheels and tires
• Check tire pressure, wear and damage.5-25 ~ 5-31,
8-107 ~ 8-109
Fittings and Fasteners
• Check all fittings and fasteners. 5-21
Lights
• Check for proper operation. 5-23, 8-121 ~ 8-127
Front axle boots
• Check for damage. 8-63

Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600-8.frame
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8-7
EBU00262
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
Valves*

• Check valve clearance.
• Adjust if necessary.
Cooling system
• Check coolant leakage.
• Repair if necessary.
• Replace coolant every 24 months.
Spark plug
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
Air filter
• Clean.
• Replace if necessary.Every 20~40 hours
(More often in wet or dusty areas.)
Crankcase breather
system*

• Check breather hose for cracks or damage.
• Replace if necessary.

Exhaust system*

• Check for leakage.
• Retighten if necessary.
• Replace gasket(s) if necessary.

Carburetor*

• Check and adjust idle speed/starter operation.
• Adjust if necessary.

Fuel line*

• Check fuel hose for cracks or damage.
• Replace if necessary.

Engine oil

• Replace (Warm engine before draining).

Engine oil filter cartridge

• Replace.

Engine oil strainer*

• Clean.

Final gear oil

• Check oil level/oil leakage.
• Replace every 12 months.

Differential gear oil
Front brake*

• Check operation/fluid leakage/see NOTE page 8-8.
• Correct if necessary.

Rear brake*

• Check operation/fluid leakage/see NOTE page 8-8.
• Correct if necessary.