1. Turn off the fuel switch of the car, find the oil drain screw on the carburetor, and unscrew the oil drain screw with a screwdriver. If the gasoline in the carburetor deteriorates, the gasoline entering the cylinder will not burn normally and will not ignite normally. Pour the deteriorated gasoline into it, then tighten the oil drain screw and turn on the fuel switch.
2. Remove the spark plug of the automobile, and use a special injector to add about 5 ml of gasoline or engine oil into the cylinder of the motorcycle. When finished, install the removed spark plug and restart it.
3. If the battery is aging or dead, you can replace the aging battery of the motorcycle or charge the dead battery.