Yamaha YP125R, Руководство по обслуживанию

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CHASSIS
3-38
Binding/looseness
→
Adjust the steering
head.
3. Remove:
• Lower handlebar holder
Refer to “STEERING HEAD” on page 4-57.
4. Adjust:
• Steering head
▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼
a. Remove the upper ring nut “1”, the lock wash-
er “2”, the center ring nut “3” and the rubber
washer.
b. Loosen the lower ring nut “4”, and then tight-
en it to specification with the steering nut
wrench “5”.
TIP
• Be sure to install all the ring nuts with the broad
side of the inner tapered section facing down.
• Set a torque wrench at a right angle to the
steering nut wrench.
c. Loosen the lower ring nut “4” 1/4 of a turn,
and then tighten it to specification with a
steering nut wrench.
WARNING
EWA13140
Do not overtighten the lower ring nut.
d. Check the steering head for looseness or
binding by turning the front fork all the way in
both directions. If any binding is felt, remove
the lower bracket and check the upper and
lower bearings.
Refer to “STEERING HEAD” on page 4-57.
e. Install the rubber washer.
f. Install the center ring nut.
g. Finger tighten the center ring nut, and then
align the slots of both ring nuts. If necessary,
hold the lower ring nut and tighten the center
ring nut until their slots are aligned.
TIP
Align the slots by turning the center ring nut in
the tightening direction.
h. Install the lock washer “2”.
TIP
Make sure the lock washer tabs “a” sit correctly
in the ring nut slots “b”.
i. Hold the lower and center ring nuts with a
steering nut wrench and tighten the upper
ring nut with another steering nut wrench.
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T
R
.
.
Lower ring nut (initial tightening
torque)
38 Nm (3.8 m·kgf, 27 ft·lbf)
Steering nut wrench
90890-01403
Exhaust flange nut wrench
YU-A9472
T
R
.
.
Lower ring nut (final tightening
torque)
22 Nm (2.2 m·kgf, 16 ft·lbf)
Steering nut wrench
90890-01403
Exhaust flange nut wrench
YU-A9472
T
R
.
.
Upper ring nut
75 Nm (7.5 m·kgf, 54 ft·lbf)