At the same time, the motorcycle's spark plug does not flash and the engine does not turn over.

Your description may be inaccurate. If the generator is not running, the spark plug should not light. Is the battery low? Lights, horns, etc. cannot determine if the battery is discharged. Compared to electric starters, horns and lights use very little power. If a motorcycle is not used for a long time, the battery may lose power or even be discarded. You should first try charging it with a charger. If it still cannot be used after charging, the battery needs to be replaced. If there is a kick starter, remove the spark plug and squeeze the kick starter lever a few more times to drain any excess oil in the cylinder. If the motorcycle is not used for a long time, the gasoline in the carburetor may evaporate and deteriorate, forming a sticky substance that blocks the carburetor nozzle holes and makes it impossiblethe start. Therefore, the carburetor must be removed and cleaned carefully. to carefully clean all the different parts of the carburetor. The nozzle holes and gasoline in the fuel tank must be replaced if they deteriorate. If it was normal before parking, there will usually be no major problems during parking. The starter, electrical components and other engine components will basically not be damaged. However, the battery is subject to loss of power and the carburetor is subject to loss of power. clogging. If the starter motor still does not turn after charging or replacing the battery, check for problems with the circuits, whether the starter motor is rusty or stuck after a long period of disuse, etc.