Yamaha TW125 1999 Service Manual page 76

CHECKING AND ADJUSTING THE STEERING HEAD
b. Loosen the lower ring nut 4 and then tighten
it to specification with a ring nut wrench 5 .
NOTE:
Set the torque wrench at a right angle to the ring
nut wrench.
Ring nut wrench
90890-01403
Lower ring nut
(initial tightening torque)
38 Nm (3.8 mSkg)
c. Loosen the lower ring nut completely, then
tighten it to specification.
WARNING
Do not overtighten the lower ring nut.
Lower ring nut (final tightening
torque)
18 Nm (1.8 mSkg)
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 inspect the upper and
lower bearings.
Refer to "STEERING HEAD AND HAN-
DLEBAR" in chapter 6.
e. Install the rubber washer .
f. Install the upper ring nut 6 .
g. Finger tighten the upper ring nut 6 , then
align the slots of both ring nuts. If necessary,
hold the lower ring nut and tighten the upper
ring nut until their slots are aligned.
h. Install the lock washer 7 .
NOTE:
Make sure that the lock washer tabs a sit cor-
rectly in the ring nut slots b .
5. Install:
S upper bracket
S handlebar
Steering stem nut
90 Nm (9.0 mSkg)
Upper bracket pinch bolt
23 Nm (2.3 mSkg)
Handlebar holder bolt
20 Nm (2.0 mSkg)
3-27
CHK
ADJ