Qianjiang motorcycle is boring. What's the matter?

There are many reasons why motorcycles are boring and need to be overhauled. According to what you said, the engine is overheated. It is recommended to change the engine oil to a better one, and check whether there is air leakage or oil leakage at the cylinder joint. If yes, it indicates that the buffer pad needs to be replaced, whether the chain cone is worn too much, and whether it is difficult to pull up the clutch. If it is difficult, it may be that the separator is too tight, leading to slipping and power reduction. Check yourself slowly, such as the quality of gasoline, whether the carburetor is too dirty, whether the spark plug ignition is normal, whether the high-pressure bag leaks, and so on.