GAS GAS EC 125 Racing 2013 User Manual page 62

MALFUNCTION
11 Shock absorber set too hard
12 Shock absorber set too soft
13 Abnormal motorcycle noises
14 Handlebar vibration
POSSIBLE CAUSE
- Excessive front fork oil.
- Front fork oil viscosity too high.
- Bent front fork.
- Tire air pressure set too high.
- Incorrect rear shock absorber adjustment.
- Insufficient front fork oil.
- Front fork oil viscosity too low.
- Bent front fork.
- Tire air pressure too low.
- Incorrect rear shock absorber adjustment.
- Incorrect drive chain adjustment .
- Worn drive chain.
- Worn rear sprocket teeth.
- Insufficient drive chain lubrication .
- Incorrect rear wheel alignment.
- Insufficient front fork oil.
- Weak or broken front fork spring.
- Worn disc brake.
- Pad installed incorrectly or surface glazed.
- Damaged cylinder.
- Improperly tightened brackets, nuts, bolts.
- Worn tire, and worn swingarm or its
needle bearings.
- Wheel rim off-centre.
- Incorrect wheel alignment.
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REMEDY
- Pour excess oil until reaching the correct oil level.
- Drain fork oil and fill with correct fork oil viscosity.
- Replace the front fork. Go to a specialized workshop.
- Check tire air pressure.
- Adjust rear shock absorber.
- Fill with fork oil until reaching the correct oil level.
- Drain fork oil and fill with correct fork oil viscosity.
- Replace the front fork. Go to a specialized workshop.
- Check tire air pressure.
- Adjust the rear shock absorber.
- Adjust the drive chain.
- Replace the drive chain, rear sprocket and the secondary
transmission pinion.
- Replace the rear sprocket.
- Lubricate with appropriate chain oil.
- Align the rear wheel. Go to a specialized workshop.
- Add front fork oil until reaching the correct level.
- Replace the front fork spring.
- Change the disc brake.
- Reinstall or replace pad.
- Replace the damaged cylinder.
- Verify and adjust to the correct torque values.
- Replace worn parts with new ones.
- Centre rim.
- Verify wheel spokes tension. Readjust if necessary.