How to make motorcycle lampshade leak?

You can feel the leakage. When there is no new starting lever leaking, you obviously feel that there is no pressure cylinder. You can also take off the spark plug. The spark plug hole blocks the middle finger of your hand, and you can't press the starting lever. If your hand is not pressed by the top cylinder pressure, it means that the combustion chamber is leaking, which may be caused by valve leakage, piston ring and cylinder gasket damage and excessive wear.