Poor Performance At High Speed; Poor Handling - KYMCO Super 8 50 Service Manual

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
 Faulty ECU
Incorrect
 Faulty pressure regulator
Abnormal
 Faulty injector
Abnormal
 Camshaft not installed properly
Incorrect
 Faulty valve spring
Weak
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
SUPER 8 50
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