TROUBLESHOOTING INFORMATION
RS 125
9.1.6. BRAKES
Trouble Symptom and possible causes Remedy
Brake hydraulic system leaking. Repair or replace.
Brake pads worn. Replace.
Contact surfaces of brake pads contaminated with oil. Replace.
Brake discs worn. Replace.
Loss of braking
Air in the hydraulic circuit. Bleed the circuit.
Contact surfaces of brake pads vitrified. Sand brake pad surfaces.
Brake pads inverted. Install brake pads cor-
rectly.
Wheel hub bearing damaged. Replace.
Front or rear wheel spindle loose. Tighten to the specified
torque.
Brake pads worn. Replace.
Foreign matter suspended in brake fluid. Change brake fluid.
Brakes squeal
Return hole of master cylinder obstructed. Dismantle and clean
brake master cylinder.
Air in the hydraulic circuit. Bleed the circuit.
Brake fluid level low. Top up to specified level.
Bleed the circuit.
Brake lever has exceed-
ing travel
Brake fluid does not meet specification. Change using specified
brake fluid.
Fittings loose. Tighten to the specified
torque.
Hoses cracked. Replace.
Brake fluid leakage
Piston and/or body damaged. Replace piston and/or
body.
9.1.7. CHASSIS
Trouble Symptom and possible causes Remedy
Steering adjusting ring nut overtightened. Adjust.
Steering bearing damaged. Replace.
Steering stem distorted. Replace.
Hard steering
Tyre underinflated. Adjust.
Uneven front fork settings. Adjust.
Front fork buckled. Replace.
Handlebars shake
Front wheel rim and/or tyre warped. Replace.
Wheel rim warped. Replace.
Front wheel hub bearings worn. Sostituire.
Tyre defective or does not meet specification. Replace.
Wheel spindle nut loose. Tighten.
Front wheel wobbles
Front fork oil does not meet specification. Adjust.
Springs yielded. Replace. Front fork too soft
Front fork oil level low. . Top up
Front fork oil does not meet specification (viscosity too high). Replace. Front fork too stiff
Front fork overfilled. Remove excess oil.
Front fork oil level low. Top up. Front fork is noisy
Suspension nuts loose. Tighten.
Wheel rim warped. Replace.
Wheel hub bearings or swinging arm bearings worn. Replace.
Tyre defective or does not meet specification. Replace.
Swinging arm and shock absorber bearings worn. Replace.
Rear wheel wobbles
Rear suspension bolts or nuts loose. Tighten.
Shock absorber spring yielded. Replace.
Adjuster incorrectly set. Adjust.
Rear suspension too soft
Perdita d'olio dall'ammortizzatore. Sostituire.
Adjuster incorrectly set. Adjust.
Shock absorber pivot bolt distorted. Replace.
Swinging arm distorted. . Replace.
Rear suspension too stiff
Swinging arm and shock absorber bearings worn. Replace.
Rear suspension bolts or nuts loose. Tighten. Rear suspension noisy
Swinging arm and shock absorber bearings worn. Replace.
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