Yamaha YZ450F Manuel D'atelier Du Proprietaire page 536

STEERING
4. Install:
Ring nut 1
G
Tighten the ring nut using the ring nut
wrench 2.
Refer to "STEERING HEAD INSPEC-
TION AND ADJUSTMENT" section in
the CHAPTER 3.
5. 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.
6. Install:
Front fork 1
G
Handle crown 2
G
NOTE:
Temporarily tighten the pinch bolts (under
G
bracket).
Do not tighten the pinch bolts (handle crown)
G
yet.
7. Install:
Plain washer 1
G
Steering shaft nut 2
G
8. After tightening the nut, check the steer-
ing for smooth movement. If not, adjust
the steering by loosening the ring nut little
by little.
9. Adjust:
Front fork top end a
G
Front fork top end (standard) a:
Zero mm (Zero in)
5 - 48
CHAS
7 Nm (0.7 m · kg, 5.1 ft · lb)
145 Nm (14.5 m · kg, 105 ft · lb)