Yamaha YZFR1W 2007, Service Manual

Page: 110 / 429

CHASSIS
3-27
NOTE:
To maintain the proper wheel alignment, adjust
both sides evenly.
d. Tighten both locknuts to specification.
e. Tighten the wheel axle nut to specification.
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EAS21440
LUBRICATING THE DRIVE CHAIN
The drive chain consists of many interacting
parts. If the drive chain is not maintained prop-
erly, it will wear out quickly. Therefore, the drive
chain should be serviced, especially when the
vehicle is used in dusty areas.
This vehicle has a drive chain with small rub-
ber O-rings between each side plate. Steam
cleaning, high-pressure washing, certain sol-
vents, and the use of a coarse brush can dam-
age these O-rings. Therefore, use only
kerosene to clean the drive chain. Wipe the
drive chain dry and thoroughly lubricate it with
engine oil or chain lubricant that is suitable for
O-ring chains. Do not use any other lubricants
on the drive chain since they may contain sol-
vents that could damage the O-rings.
EAS21500
CHECKING AND ADJUSTING THE STEER-
ING HEAD
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there
is no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that
the front wheel is elevated.
2. Check:
• Steering head
Grasp the bottom of the front fork legs and
gently rock the front fork.
Binding/looseness
→
Adjust the steering
head.
3. Remove:
• Upper bracket
Refer to "HANDLEBARS" on page 4-45
and "STEERING HEAD" on page 4-59.
4. Adjust:
• Steering head
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a. Remove the lock washer “1”, the upper ring
nut “2”, and the rubber washer “3”.
b. Loosen the lower ring nut “4” and then
tighten it to specification with a steering nut
wrench “5”.
NOTE:
Set the torque wrench at a right angle to the
steering nut wrench.
Direction “a”
Drive chain is tightened.
Direction “b”
Drive chain is loosened.
Locknut
16 Nm (1.6 m·kg, 12 ft·lb)
Wheel axle nut
150 Nm (15 m·kg, 108 ft·lb)
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains