2001 YAMAHA YFM660R brakes

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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 element• Clean.
• Replace if necessary.Every 20~40 hours
(More often in wet or dusty areas.)
Carburetor*• Check and adjust 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 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 if necessary.
Drive chain• Check and adjust slack/alignment/clean/lube.
Brakes*• Check operation/fluid leakage/See NOTE Page 8-8.
• Correct if necessary.
Clutch*• Check operation.
• Adjust if necessary.

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1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimo
Front
Avant
Delantero
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Brake fluid level inspection
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.
Recommended brake fluid: DOT 4
1. Minimum level mark
1. Repère de niveau minimum
1. Marca de nivel mínimo
Rear
Arrière
Trasero

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Brake fluid replacement
1. Complete fluid replacement should be
done only by trained Yamaha service per-
sonnel.
2. Have a Yamaha dealer replace the follow-
ing components during periodic mainte-
nance or when they are damaged or
leaking.


Replace all rubber seals every two years.


Replace all hoses every four years.
WARNING
Operating with improperly serviced or adjust-
ed brakes.
You could lose braking ability, which could
lead to an accident.
After servicing:


Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.


Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.

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a. Free play
a. Jeu
a. Juego libre
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Front brake adjustment
The front brake lever should have a free play of
Zero mm at the lever end. If not, ask a Yamaha
dealer to adjust it.
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:


Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.


Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.

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Rear brake adjustment
NOTE:
Adjust the rear brake before inspecting the rear
brake pads.
Pedal height adjustment
The top of the brake pedal should be posi-
tioned 4 mm below the top of the footrest. If
not, ask a Yamaha dealer to adjust it.
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident.
After servicing:


Make sure the brakes operate smoothly
and that the free play is correct.


Make sure the brakes do not drag.


Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
a. Brake pedal position
a. Position de la pédale de frein
a. Posición del pedal del freno

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5. Screw in the adjusting bolt on the brake
caliper by hand until it feels tight, then
screw it out 1/8 turn. Tighten the adjusting
bolt locknut to the specified torque.
WARNING
Operating with improperly adjusted brakes
could cause the brakes to malfunction result-
ing in reduced braking performance. This
could increase the chance of a collision or acci-
dent. After adjusting the parking brake, block
the rear of the machine off the ground and
spin the rear wheels. Check to make sure there
is no brake drag. If brake drag is noticed, per-
form the adjustment again. Tightening torque:
16 Nm (1.6 m·kg)

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CAUTION:
Excessive water pressure may cause water
seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical de-
vices. Many expensive repair bills have result-
ed from improper high pressure detergent
applications such as those available in coin-
operated car washers.
4. Once the majority of the dirt has been
hosed off, wash all surfaces with warm
water and mild, detergent-type soap. An
old toothbrush or bottle brush is handy
for hard-to-get-at places.
5. Rinse the machine off immediately with
clean water and dry all surfaces with a
chamois, clean towel or soft absorbent
cloth.
6. Dry the chain and lubricate it to prevent
rust.
7. Clean the seat with a vinyl upholstery
cleaner to keep the cover pliable and
glossy.

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8. Automotive type wax may be applied to
all painted and chrome plated surfaces.
Avoid combination cleaner-waxes. Many
contain abrasives which may mar the
paint or protective finish. When finished,
start the engine and let it idle for several
minutes.
WARNING
Wet brakes may have reduced stopping abili-
ty, increasing the chance of an accident. Test
the brakes after washing. Apply the brakes
several times at slow speeds to let friction dry
out the linings.