If the ignition coil is used improperly, it will cause damage to the ignition coil, so the following points should be noted: prevent the ignition coil from being heated or damp; Do not turn on the ignition switch when the engine is not running; Frequently inspect, clean and tighten the line joints to avoid short circuits or tie-ins; Control engine performance to prevent overvoltage; The spark plug shall not be "hoisted" for a long time; The moisture on the ignition coil can only be dried with a cloth and must never be baked with fire, otherwise the ignition coil will be damaged.