GAS GAS 125 TXT GP 2019, Owner'S Manual

Page: 48 / 51

Owner's Manual
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FAULT CAUSE SOLUTION
13 Motorcycle unstable - Cable makes turning handlebars
difficult.
- Excessively tight steering shaft nut.
- Damaged or worn steering bearings.
- Bent steering shaft.
- Separate cable or loosen slightly.
- Loosen steering shaft nut
- Replace steering bearings.
- Change steering shaft. - Go to a specialized workshop.
14 Excessively hard shock
absorption - Excessive oil in front fork.
- Excessively viscous oil in front fork.
- Bent front fork.
- Excessive tyre pressure.
- Badly adjusted shock absorber.
- Remove excess oil to reach proper level.
- Drain oil from fork and refill with oil of suitable viscosity.
- Change front fork. - Go to a specialized workshop.
- Check tyre pressures.
- Adjust rear shock absorber.
15 Excessively soft shock
absorption
- Insufficient oil in front fork.
- Insufficiently viscous oil in front fork.
- Bent front fork.
- Badly adjusted shock absorber.
- Add oil to front fork to reach proper level.
- Drain oil from fork and refill with oil of suitable viscosity.
- Change front fork. - Go to a specialized workshop.
- Adjust rear shock absorber.
16 Motorcycle makes abnormal
noises - Badly adjusted chain.
- Worn chain.
- Worn rear sprocket teeth.
- Insufficient lubrication of chain.
- Misaligned rear wheel
- Insufficient oil in front fork
- Weak or broken front fork spring.
- Worn brake disc.
- Badly placed or glazed pads.
- Damaged cylinder.
- Badly tightened supports, nuts or
bolts
- Adjust chain.
- Replace chain, rear sprocket and final drive system
pinion.
- Change rear sprocket.
- Lubricate with appropriate lubricant for chains.
- Align rear wheel. - Go to a specialized workshop.
- Add oil to front fork to reach proper level.
- Replace front fork spring.
- Replace brake disc.
- Reposition or change pads.
- Replace damaged cylinder.
- Check and adjust to appropriate tightening torques.
17 Handlebars vibrate - Worn tyre, swinging arm or needle
bearings.
- Off-centre rim.
- Misaligned wheel.
- Excessive tolerance in steering shafts.
- Loose handlebar bracket and steering
shaft nut.
- Replace worn parts with new ones.
- Centre rim.
- Check rim spoke tension. Readjust if necessary.
- Tighten handlebar bracket and steering shaft nut to
appropriate tightening torques.
- Tighten handlebar bracket and steering shaft nut to
appropriate tightening torques.
Troubleshooting