Diagnostic
- 5-
O
FRAME
STEERING
Steering stiff Steering bearings damaged Replace
Steering bearings overtightened Adjust
Steering pin bent Replace
Steering damper action excessive Adjust
Steering damper joints damaged Replace
Tyre pressure low Adjust
Vehicle tends to steer or does not travel on a straight line Fork bent Replace
Frame bent Replace
Swingarm bent Replace
Steering damper joints damaged Replace
Steering bearings damaged Replace
Wheel spindle bent Replace
Swingarm bearings damaged Replace
FRONT WHEEL
Front wheel wobbles/vibrates Wheel rim bent Replace
Wheel unbalanced Balance
Tyre faulty Replace
Tyre unsuitable Replace
Wheel bearings damaged Tighten
Spindle fixing screws loose Tighten
Spindle ring nut loose Tighten
Front wheel hardly turns Wheel bearings damaged Replace
Wheel spindle bent Replace
Brake pad friction on discs excessive (see brakes) Check
Brake discs bent Replace
Wheel spindle ring nut overtightened Use prescribed torque
FRONT SUSPENSION
Front suspension soft Fork oil deteriorated Renew
Spring preload low Adjust
Hydraulic compression damping insufficient Adjust
Fork oil level low Top up
Tyre pressure low Adjust
Fork damaged Repair
Front suspension stiff Spring preload excessive Adjust
Hydraulic compression damping excessive Adjust
Swingarm oil level high Adjust
Tyre pressure high Adjust
REAR WHEEL
Rear wheel wobbles/vibrates Wheel rim bent Replace
Wheel unbalanced Balance
Tyre faulty Replace
Tyre unsuitable Replace
Wheel bearings damaged Replace
Locknut loose Tighten
Suspension screws loose Tighten
Suspension bearings damaged Replace
Rear wheel hardly turns Wheel bearings damaged Replace
Wheel hub circlip displaced Check
Brake pad friction on discs excessive Check
Brake disc bent Replace
Drive chain damaged Replace
REAR SUSPENSION
Rear suspension soft Spring preload excessive Adjust
Hydraulic compression damping (high/low speed) insufficient Adjust
Hydraulic rebound damping insufficient Adjust
Tyre pressure low Adjust
Shock absorber damaged Replace
Rear suspension stiff Spring preload excessive Adjust
Hydraulic compression damping (high/low speed) excessive Adjust
Hydraulic rebound damping excessive Adjust
Tyre pressure high Adjust
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