KYMCO X -Town 125 ABS Service Manual page 22

1. GENERAL INFORMATION
POOR PERFORMANCE AT HIGH SPEED
1. Check ignition timing
Correct
2. Inspect the fuel flow
Normal
3. Inspect the fuel injector
Normal
4. Check valve timing
Correct
5. Check valve spring
Not weak
POOR HANDLING
1. If steering is heavy
2. If either wheel is wobbling
3. If the motorcycle pulled to one side
Possible cause
Incorrect  Faulty ECU
Abnormal  Faulty pressure regulator
Abnormal  Faulty injector
Incorrect  Camshaft not installed properly
Weak  Faulty valve spring
Possible cause
 Steering stem adjusting nut too tight
 Damaged steering head bearings
 Excessive wheel bearing play
 Bent rim
 Improper installed wheel hub
 Swing arm pivot bearing
excessively worn
 Bent frame
 Faulty the shock absorber
 Front and rear wheel not aligned
 Bent fork
 Bent swing arm
 Bent axle
X -Town 125 ABS/ CBS
1-20