Gear shift lever locating pin is worn and loose. Motorcycle is a kind of two-wheeled or three-wheeled vehicle driven by gasoline engine and controlled by handlebar, which is light, flexible and fast. Widely used in patrol, passenger and freight transportation, etc. It is also used as sports equipment. The reason why the second side of Wanliang Magic Trailer always leaves the party uphill is that the positioning pin of the shift lever is worn loose and needs maintenance.