2001 YAMAHA YFM660R lock

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Parking brake adjustment
Parking brake adjustment may be required if
the parking brake does not hold properly.
1. Fully loosen the parking brake cable ad-
justing bolt locknut and the adjusting bolt
on the left brake lever.
2. Loosen the adjusting bolt locknut and the
adjusting bolt on the rear brake caliper.
3. Turn the adjusting bolt on the brake lever
so that cable length “A” is 64 ~ 68 mm.
NOTE:
If the cable cannot be adjusted to specification,
consult a Yamaha dealer.
4. Tighten the adjusting bolt locknut on the
brake lever.
CAUTION:
When tightening the locknut, hold the adjust-
ing bolt with a wrench so that the adjusting
bolt does not turn together with the locknut.
1. Locknut 2. Adjusting bolt
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
1. Locknut 2. Adjusting bolt
A. Cable length
1. Contre-écrou 2. Boulon de réglage
A. Longeur de câble
1. Contratuerca 2. Perno de ajuste
A. Longitud del cable

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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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Clutch lever free play adjustment
The clutch lever free play should be adjusted to
5 ~ 10 mm.
1. Loosen the locknut at the clutch lever.
2. Turn the adjusting bolt at the clutch lever
in direction
a to increase the free play or
in direction
b to decrease the free play.
3. Tighten the locknut at the clutch lever.
NOTE:
If the specified free play cannot be obtained,
proceed with the following steps.
4. Loosen the locknut at the clutch lever.
5. Turn the adjusting bolt at the clutch lever
in direction
a to loosen the cable.
6. Loosen the locknut at the crankcase side.
7. Turn the adjusting nut at the crankcase in
direction
a to increase the free play or in
direction
b to decrease the free play.
8. Tighten the locknut at the crankcase and
the clutch lever.
1. Locknut 2. Adjusting bolt c. Free play
1. Contre-écrou 2. Boulon de réglage c. Jeu
1. Contratuerca 2. Perno de ajuste c. Juego libre
1. Locknut 2. Adjusting nut
1. Contre-écrou 2. Écrou de réglage
1. Contratuerca 2. Tuerca de ajuste

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Drive chain slack adjustment
1. Loosen the rear wheel hub upper and low-
er nuts.
2. Loosen the adjusting bolt locknuts on
each side of the swingarm. To tighten the
drive chain, turn the adjusting bolts in di-
rectiona. To loosen the drive chain, turn
the adjusting bolts in direction b and
push the wheels forward. Turn each ad-
justing bolt exactly the same amount to
maintain correct axle alignment.
There are alignment marks on each side of the
swingarm and on the hub. Use them to check
for proper wheel axle alignment.
3. After adjusting, tighten the locknuts and
the wheel hub nuts to the specified
torques.
Tightening torques:
Locknut:
16 Nm (1.6 m·kg)
Upper wheel hub nut:
90 Nm (9.0 m·kg)
Lower wheel hub nut:
90 Nm (9.0 m·kg)
1. Upper wheel hub nut 2. Lower wheel hub nut
1. Écrou supérieur de moyeu de roue
2. Écrou inférieur de moyeu de roue
1. Tuerca superior del buje de la rueda
2. Tuerca inferior del buje de la rueda
1. Locknut (× 2) 2. Adjusting bolt (× 2)
3. Alignment marks (× 2)
1. Contre-écrou (× 2) 2. Boulon de réglage (× 2)
3. Repères d’alignement (× 2)
1. Contratuerca (× 2) 2. Perno de ajuste (× 2)
3. Marcas de alineación (× 2)

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1. Bulb holder
1. Fixation d’ampoule
1. Portabombillas
1. Bulb 2. Bulb holder
1. Ampoule 2. Fixation d’ampoule
1. Bonbilla 2. Portabombillas
7. Push the bulb holder inward, turn it coun-
terclockwise and remove the defective
bulb.
WARNING
The headlight bulb is hot when it is on and im-
mediately after it is turned off. Wait for the
bulb to cool down before touching or remov-
ing it. You can be burned, or a fire could start if
the bulb touches something flammable.
8. Put a new bulb into position and secure it
in place with the bulb holder.
9. Install the bulb holder cover.
CAUTION:
Make sure the bulb holder cover is securely fit-
ted over the bulb holder and seated against
the reflector.
10. Align the projections with the holders, in-
stall the headlight unit into the case, and
install the screw.
11. Install the headlight cover in the original
position, and then install the screw.

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1. Lens 2. Screw (× 2)
1. Lentille 2. Vis (× 2)
1. Lente 2. Tornillo (× 2)
1. Bulb
1. Ampoule
1. Bonbilla
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Tail/brake light bulb replacement
1. Remove the screws and the lens.
2. Remove the defective bulb by pushing it
inward and turning it counterclockwise.
3. Install a new bulb by pushing it inward
and turning it clockwise.
4. Install the lens and tighten the screws.
CAUTION:
Do not over-tighten the screws as the lens
may break.

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CLEANING AND STORAGE
A. CLEANING
Frequent, thorough cleaning of your machine
will not only enhance its appearance but will
improve its general performance and extend
the useful life of many components.
1. Before cleaning the machine:
a. Block off the end of the exhaust pipe to
prevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler caps
are properly installed.
2. If the engine case is excessively greasy,
apply degreaser with a paint brush. Do
not apply degreaser to the chain, sprock-
ets or wheel axles.
3. Rinse the dirt and degreaser off with a
garden hose. Use only enough pressure
to do the job.

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5. Block up the frame to raise all wheels off
the ground.
6. Tie a plastic bag over the exhaust pipe
outlet to prevent moisture from entering.
7. If storing in a humid or salt-air atmo-
sphere, coat all exposed metal surfaces
with a light film of oil. Do not apply oil to
any rubber parts or the seat cover.
8. Remove the battery and charge it. Store it
in a dry place and recharge it once a
month. Do not store the battery in an ex-
cessively warm or cold place (less than
0 ˚C or more than 30 ˚C).
NOTE:
Make any necessary repairs before storing the
machine.