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Description Routine
Not move with high speed
● Protruding sprocket wheel and magneto
flywheel position not match
Yes No
Mixed time right?
● Spring not good Yes No
Spring of valve good？
◆
Engine works at high
speed or easy to stop?
Engine works at
high speed
●
● Ignition coil wrong connection
● Spark plug bad connection
No high speed or easy to
stop
reverse gear OK
Check reverse operation system
●Length of reverse cable is not suitable
reverse position wrong
● Connection of battery not good
● Oil line not good
No Yes
Any unusual sound of engine
gear case
●Differential gear damaged
●reverse gear damaged
●Connector sheath of reverse gear damaged
●Differential damaged
Reasons
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