Yamaha YZ450FT Automobile User Manual


 
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INSP
ADJ
STEERING HEAD INSPECTION AND ADJUSTMENT
Tighten the ring nut 3 using ring nut
wrench 4.
N
OTE:
Apply the lithium soap base grease on the
thread of the steering shaft.
Set the torque wrench to the ring nut
wrench so that they form a right angle.
Ring nut wrench:
YU-33975/90890-01403
T
R
.
.
Ring nut (initial tightening):
38 Nm (3.8 m kg, 27 ft lb)
Loosen the ring nut one turn.
Retighten the ring nut using the ring nut
wrench.
WARNING
Avoid over-tightening.
T
R
.
.
Ring nut (final tightening):
7 Nm (0.7 m kg, 5.1 ft lb)
Check the steering shaft by turning it lock
to lock. If there is any binding, remove the
steering shaft assembly and inspect the
steering bearings.
Install the plain washer 5, handle crown
6, plain washer 7, steering shaft nut 8,
steering shaft cap 9, handlebar 0, han-
dlebar holder A and number plate B.
N
OTE:
The upper handlebar holder should be
installed with the punched mark a for-
ward.
Install the handlebar so that the marks b
are in place on both sides.
Insert the end of fuel breather hose C into
the hole in the steering shaft cap.
CAUTION:
First tighten the bolts on the front side of
the handlebar holder, and then tighten
the bolts on the rear side.