2001 YAMAHA YFM660R oil level

ER
Yuki_DATA2:HM00G210_YFM660R-60:YFM350TOC-E.frame
OPERATION ........................................... 6-1
Starting a cold engine ....................... 6-3
Starting a warm engine ..................... 6-9
Warming up ........................................ 6-9
Reverse knob operation and
reverse driving ............................... 6-11
Shifting ............................................. 6-15
To start out and accelerate .............. 6-17
To decelerate .................................... 6-21
Engine break-in ................................ 6-23
Parking .............................................. 6-27
Parking on a slope ........................... 6-29
Accessories and loading ................. 6-31
Accessories....................................... 6-31
Loading ............................................. 6-33
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 ............................... 7-59
Crossing through shallow water .... 7-63
Riding over rough terrain ................ 7-67
Sliding and skidding ........................ 7-69What 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
Panel removal and installation ....... 8-15
Engine oil and oil filter cartridge .... 8-17
Cooling system ................................ 8-31
Changing the coolant ...................... 8-33
Spark plug inspection ...................... 8-41
Air filter element cleaning ............... 8-45
Carburetor adjustment .................... 8-51
Idle speed adjustment ..................... 8-53
Valve clearance adjustment ............ 8-55
Reverse lock release cable
adjustment ..................................... 8-55
Throttle lever adjustment ................ 8-57
Front and rear brake pad
inspection ....................................... 8-59
Brake fluid level inspection ............. 8-61
Brake fluid replacement .................. 8-65
Front brake adjustment ................... 8-67
Rear brake adjustment .................... 8-69
Parking brake adjustment ............... 8-71
Clutch lever free play adjustment .... 8-756
7
8

5-1
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-5.frameEL
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.5-5 ~ 5-7,
8-59 ~ 8-69
Clutch• Check operation, condition and lever free play. 8-75
Parking brake• Check operation, condition and cable slack. 8-71 ~ 8-73
Fuel• Check fuel level.
• Fill with fuel if necessary.5-9 ~ 5-11
Engine oil• Check oil level.
• Fill with oil if necessary.5-13 ~ 5-15,
8-17 ~ 8-29
Coolant reservoir• Check coolant level.
• Fill with coolant if necessary.5-17, 8-31
Drive chain• Check chain slack and condition.
• Adjust if necessary.5-19, 8-77 ~ 8-83
Throttle• Check for proper throttle cable operation. 5-21, 8-57
Wheels and tires• Check tire pressure, wear and damage.5-23 ~ 5-29,
8-93 ~ 8-95
Fittings and Fasteners• Check all fittings and fasteners. 5-21
Lights• Check for proper operation. 5-21, 8-105 ~ 8-115

8-8
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameER
* It is recommended that these items be serviced by a Yamaha dealer.
** Lithium-soap-based grease
NOTE:
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.
Wheels*• Check balance/damage/runout.
• Replace if necessary.
Wheel bearings*• Check bearing assembly for looseness/damage.
• Replace if damaged.
Steering system*• Check operation.
• Repair if damaged.
• Check toe-in.
• Adjust if necessary.
Upper and lower arm
pivot and steering
shaft*• Lubricate every 6 months.**
Rear arm pivot*• Lubricate every 6 months.**
Fittings and Fasteners*• Check all chassis fittings and fasteners.
• Correct if necessary.
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year

8-17
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
1. Engine oil tank
2. Engine oil filler cap
3. Maximum level mark
4. Minimum level mark
1. Réservoir d’huile de moteur
2. Bouchon de remplissage de l’huile de moteur
3. Repère de niveau maximum
4. Repère de niveau minimum
1. Depósito de aceite de motor
2. Tapa de relleno de aceite de motor
3. Marca de nivel máximo
4. Marca de nivel mínimo
EBU00812
Engine oil and oil filter cartridge
The engine oil level should be checked before
each ride. In addition, the oil must be changed
and the oil filter cartridge replaced at the inter-
vals specified in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the ATV on a level surface.
2. Start the engine, warm it up until the en-
gine oil has reached a normal tempera-
ture of 60˚C, let it continue to idle for ten
seconds, and then turn the engine off.
NOTE:
To achieve the proper engine oil temperature
for an accurate oil level reading, the engine
must have first completely cooled down, and
then warmed up again for several minutes to
normal operating temperature.
3. Wait a few minutes until the oil settles, re-
move the engine oil tank filler cap, wipe
the dipstick clean, insert it back into the
filler hole (without screwing it in), and
then remove it again to check the oil level.

8-19
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
NOTE:
The engine oil should be between the mini-
mum and maximum level marks.
4. If the engine oil is below the minimum
level mark, add sufficient oil of the recom-
mended type to raise it to the correct lev-
el.
NOTE:
When adding oil, be careful not to overfill the
engine; the oil level rises faster starting from
the half-level-portion on the dipstick.
5. Insert the dipstick into the oil filler hole,
and then tighten the oil filler cap.
CAUTION:
Make sure that the oil filler cap is securely
tightened, otherwise oil may seep out when
the engine is running.

8-27
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
10. Add sufficient oil of the recommended
type to raise it to the correct level, and
then install and tighten the oil tank filler
cap.
CAUTION:
In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives with
the oil or use oils of a higher grade than
“CD”. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.
Make sure that no foreign material enters
the crankcase. Recommended engine oil:
See page 10-2.

8-29
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
11. Start the engine, and then let it idle for
several minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and check for the cause.
12. Turn the engine off, and then check the oil
level and correct it if necessary.

8-63
Yuki_DATA2:HM00G210_YFM660R-60:YFM350-8.frameEL
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.