DAELIM DAYSTAR VL125E, Service Manual

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22-4
SERVICE Troubleshooting
Poor Performance(At High Speed)
1. Check the ignition timing and Incorrect. Faulty valve clearance adjustment.
valve clearance. Faulty ECU.
Faulty crank position sensor.
Flywheel not installed properly.
2. Disconnect fuel tube at Fuel flows Clogged fuel tube.
Fule pump. restricted. Clogged fuel tank cap hole.
Clogged fuel tank cap hole.
3. Check valve timing Incorrect. Cam sprocket not installed properly.
4. Check valve spring tension. Weak. Faulty spring.
Correct.
Fuel flows freely.
Poor Performance(At High Speed)
1. If steering is heavy. Too tight steering top thread.
Damaged steering bearings.
2. If front wheel or rear wheel Excessive wheel bearing play.
is wobbling Bent rim.
Improperly installed wheel hub.
Worn rear fork pivot bush.
Bent frame.
Rear fork pivot adjusting bolt is too tight.
3. If the motorcycle pulls to one side. Front and rear wheels are not aligned.
Bent front fork.
Bent rear fork.
Correct.