Yamaha TTR90 Fahrer- Und Wartungshandbuch Seite 166

STEERING HEAD INSPECTION AND ADJUSTMENT
WHEEL INSPECTION/
EC36T000
WHEEL INSPECTION
1. Inspect:
• Wheel runout
Elevate the wheel and turn it.
Abnormal runout → Replace.
2. Inspect:
• Bearing free play
Exist play → Replace.
STEERING HEAD INSPECTION AND
ADJUSTMENT
1. Elevate the front wheel by placing a suit-
able stand under the engine.
2. Check:
• Steering shaft
Grasp the bottom of the forks and gently
rock the fork assembly back and forth.
Free play → Adjust steering head.
3. Check:
• Steering smooth action
Turn the handlebar lock to lock.
Unsmooth action → Adjust steering ring
nut.
4. Adjust:
TT-R90
• Steering ring nut
Steering ring nut adjustment steps:
• Remove the front fender 1.
• Remove the handlebar and handle crown.
• Loosen the ring nut 2 using the ring nut
wrench 3.
3 - 18
INSP
ADJ