Yamaha MBK YQ100 Service Manual page 66

CHECKING AND ADJUSTING THE STEERING HEAD
Steering nut wrench
90890-01403
Lower ring nut (initial tightening
torque)
38 Nm (3.8 m•kg)
c. Loosen the lower ring nut
then tighten it to specification with a steering
nut wrench .
CAUTION:
Do not overtighten the lower ring nut.
Lower ring nut (final tightening
torque)
22 Nm (2.2 m•kg)
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" in chapter 6.
e.Install the rubber washer.
f. Install the center ring nut.
g.Finger tighten the center ring nut
the slots of both ring nuts. If necessary, hold
the lower ring nut and tighten the center ring
nut until their slots are aligned.
h.Install the lock washer
NOTE:
Make sure the lock washer tabs a sit correctly in
the ring nut slots.
i. Hold the lower and center ring nuts with a ring
nut wrench and tighten the upper ring nut with
a steering nut wrench.
Steering nut wrench
90890-01403
Ring nut wrench
90890-01268
Upper ring nut
75 Nm (7.5 m•kg)
3-23
INSP
REG
of 1/4 turn and
, then align
.