Honda CBR650F Service Manual page 279

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FRONT WHEEL/SUSPENSION/STEERING
SERVICE INFORMATION
FRONT WHEEL/SUSPENSION/STEERING
GENERAL
• A hoist or equivalent is required to support the motorcycle when servicing the front wheel, fork and steering stem.
• A contaminated brake disc or pad reduces stopping power. Discard contaminated pads and clean a contaminated disc with a
high quality brake degreasing agent.
• Do not operate the brake lever after removing the front wheel.
• Use only tires marked "TUBELESS" and tubeless valves on rim marked "FOR TUBELESS".
• After the front wheel installation, check the brake operation by applying the brake lever.
• CBR650FA, CB650FA: After the front wheel installation, perform the air gap inspection (page 19-21).
• For brake system service (page 18-2).
TROUBLESHOOTING
Hard steering
• Insufficient tire pressure
• Faulty tire
• Steering stem adjustment nut too tight
• Worn or damaged steering beatings
• Worn or damaged steering beating races
• Bent steering stem
Steers to one side or does not track straight
• Bent axle
• Wheel installed incorrectly
• Worn or damaged wheel bearings
• Bent fork leg
• Damaged or loose steering bearings
• Damaged frame
• Faulty wheel bearing
Front wheel wobbles
• Bent rim
• Faulty tire
• Worn or damaged wheel bearings
• Loose axle
• Unbalanced tire and wheel
Wheel hard to turn
• Faulty wheel bearings
• Bent axle
• Brake drag (page 18-2)
Soft suspension
• Low tire pressure
• Weak fork spring
• Low fluid level in fork
• Incorrect fork fluid weight (low viscosity)
Stiff suspension
• High tire pressure
• Bent fork tube
• Fork slider binds
• High fluid level in fork
• Incorrect fork fluid weight (high viscosity)
• Clogged fork fluid passage
Front suspension noise
• Loose fork fasteners
• Incorrect fork fluid weight (low viscosity)
• Worn slider of fork tube bushing
16-2