Yamaha TT-R90 Manuel D'atelier Du Proprietaire page 160

STEERING HEAD INSPECTION AND ADJUSTMENT
a
b
3
5
b
2
4
Check the steering shaft by turning it lock
G
to lock. If there is any binding, remove the
steering shaft assembly and inspect the
steering bearings.
Install the handle crown 6, handlebar 7,
G
and front fender.
CAUTION:
Install the handlebar holder with its
groove a facing outward, and tighten
the bolts so that the gaps b are equal.
Steering stem bolt:
40 Nm (4.0 m • kg, 2.9 ft • lb)
Front fork cap bolt:
40 Nm (4.0 m • kg, 2.9 ft • lb)
Handlebar upper holder:
13 Nm (1.3 m • kg, 9.4 ft • lb)
TT-R90E
Steering ring nut
G
Steering ring nut adjustment steps:
Remove the front fender 1.
G
Remove the handlebar and handle crown.
G
Loosen the ring nut 2 using the ring nut
G
wrench 3.
Ring nut wrench:
YU-1268/90890-01268
Tighten the ring nut 4 using ring nut
G
wrench 5 and turn the steering right and
left a few times.
NOTE:
Set the torque wrench to the ring nut wrench
so that they form a right angle.
Ring nut wrench:
YM-33975/90890-01403
Ring nut (initial tightening):
38 Nm (3.8 m • kg, 27 ft • lb)
3 - 17
INSP
ADJ