2001 YAMAHA YFM600FWA brake fluid

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

5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Front brake• Check operation, free play, fluid level and fluid leakage.
• Fill with DOT 4 (or DOT 3) brake fluid if necessary.5-7 ~ 5-9,
8-51 ~ 8-67
Rear brake• Check operation and free play.
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,
8-15 ~ 8-23
Final gear oil/
Differential gear oil• Check for leakage. 5-19, 8-25 ~ 8-33
Throttle• Check for proper throttle cable operation. 5-19, 8-49
Wheels and tires• Check tire pressure, wear and damage.5-23 ~ 5-29,
8-71 ~ 8-73
Fittings and Fasteners• Check all fittings and fasteners. 5-21
Lights• Check for proper operation. 5-21, 8-83
Front axle boots• Check for damage. 8-33

5-7
EBU00479
Front and rear brakes
1. Brake levers and brake pedal
Check for correct free play in the brake le-
vers and brake pedal. If the free play is in-
correct, adjust it. Check operation of the
levers and pedal. They should move
smoothly and there should be a firm feel-
ing when the brake is applied. If not, have
the machine inspected by a Yamaha deal-
er. (See pages 8-59 ~ 8-67.)
2. Brake fluid level (front brake)
Check the brake fluid level. Add fluid if
necessary. (See pages 8-53~ 8-57.)
NOTE:
If DOT 4 is not available, DOT 3 can be used.Recommended brake fluid: DOT 4

5-9
3. Brake fluid leakage
Check to see if any brake fluid is leaking
out of the hose, joint or master cylinder of
the front brake. Apply the brake firmly for
one minute. If the lever moves slowly in-
ward, there may be a leak in the brake sys-
tem. If there is any leakage, the brake
system should be inspected by a Yamaha
dealer.
4. Brake operation
Test the brakes at slow speed after start-
ing out to make sure they are working
properly. If the brakes do not provide
proper braking performance, inspect the
brakes for wear. (See page 8-51.)
WARNING
Always check the brakes at the start of every
ride. Do not ride the ATV if you find any prob-
lem with the brakes or you could lose braking
ability, which could lead to an accident. If a
problem cannot be corrected by the adjust-
ment procedures provided in this manual,
have the ATV inspected by a Yamaha dealer.

8-7
EBU00262
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
Valves*• Check valve clearance.
• Adjust if necessary.
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.)
Carburetor*• Check idle speed/starter operation.
• Adjust if necessary.
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.
Fuel line*• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil• Replace (Warm engine before draining).
Engine oil filter• 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.
• Adjust if necessary.
V-belt*• Check operation.
• Check for cracks or damage every 12 months or
2,400 km whichever comes first.

8-8
* It is recommended that these items be serviced by a Yamaha dealer.
** Lithium-soap-based grease
NOTE:
Recommended brake fluid: DOT 4
(If DOT 4 is not available, DOT 3 can be used.)
Brake fluid replacement:
1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally
check the brake fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two
years.
3. Replace the brake hoses every four years, or if cracked or damaged.
Reverse lock release
wire*• Check operation.
• Adjust if necessary.
Wheels*• Check balance/damage/runout.
• Repair if necessary.
Wheel bearing*• Check bearing assemblies for looseness/damage.
• Replace if damaged.
Front and rear
suspension*• Check operation.
• Correct if necessary.
Steering system*• Check operation/Replace if damaged.
• Check toe-in/Adjust if necessary.
Drive shaft universal
joint*• Lubricate every 6 months.**
Front axle boots*• Check operation.
• Replace if damaged.
Fittings and Fasteners*• Check all chassis fittings and fasteners.
• Correct if necessary.
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year

8-53
EBU00315
Inspecting the brake fluid level
Insufficient brake fluid may let air enter the
brake system, possibly causing the brakes to
become ineffective.
Before riding, check that the brake fluid is
above the lower level and replenish when nec-
essary.
Observe these precautions:
1. When checking the fluid level, make sure
the top of the master cylinder is level by
turning the handlebars.
2. Use only the designated quality brake flu-
id. Otherwise, the rubber seals may dete-
riorate, causing leakage and poor brake
performance.
NOTE:
If DOT 4 is not available, DOT 3 can be used.Recommended brake fluid: DOT 4
1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimo

8-55
3. Refill with the same type of brake fluid.
Mixing fluids may result in a harmful
chemical reaction and lead to poor brake
performance.
4. Be careful that water does not enter the
master cylinder when refilling. Water will
significantly lower the boiling point of the
fluid and may result in vapor lock.
5. Brake fluid may deteriorate painted sur-
faces or plastic parts. Always clean up
spilled fluid immediately.
6. Have a Yamaha dealer check the cause if
the brake fluid level goes down.