66
XVIII. Common faults and causes of motorcycles
The oil pump is blocked or damaged, and the fuel quality is poor
Spark plug failure: too much carbon deposits and long use time
Spark plug cap failure: poor contact or burnt Ignition coil
failure: poor contact or burnt
CDI failure: poor contact or burnt
Trigger coil failure: poor contact or burnt
Stator failure: poor contact or burned out
Failure of each connection line: poor contact
Starting mechanism failure: worn or damaged
Intake and exhaust valve, valve seat failure: the fuel contains too
much gum or has been used for too long