Honda CRF450R 2009 Service Manual page 369

TROUBLESHOOTING
Hard steering
Steering stem adjusting nut too light
Faulty or damaged steering head bearings/races
Insufficient tire pressure
Faulty tire
Faulty HPSD
Steers to one sIde or does not track straight
Bent fork tube
Bent axle shaft
Wheel installed incorrectly
Unequal forti oil quantity in each fork tube
Faulty steering head bearings
Benl frame
Worn wheel bearings
Worn swingarm pivot components
Unevenly adjusted right and left fori< legs
Uneven PSF air pressure in righ t and left forks (After '12)
Front wheel wobbling
Bent rim
Worn wheel bearings
Benl spokes
Faulty lire
insufficient lire pressure
Axle nol tightened properly
Unbalanced tire and wheel
Wheel hard t o turn
Faulty wheel bearings
• Benl axle shaft
• Brake drag (page 16-6)
Soft s uspension
Weak fork springs (,09" '12)
Insufficient fork oil in fork
Incorrect fork oil weight
Insufficient PSF air pressure (After '12)
Insufficient tire pressure
Stiff suspension
Excessive fork oil quantity
Fork oil viscosity too thick
Excessive PSF air pressure (After '12)
Bent or damaged fork tubes
Clogged fork oil passage
Front suspension noise
Insufficient fork oil in fori<
• loose fori< fasteners
FRONT WHEEUSUSPENSION/STEERING
14-9