当摩托车从低速档换向高速档位时,出现了这样一种情况:必需将脚尖用力踏着,否则就会自动往上跳档。这就是一种方向往上脱档的脱档故障,多见于三档和四档。它主要是由于凸轮板固定销磨损,以及固定排档位置的锁紧装置磨损,使凸轮板转动方向的旷量增大所致。 When a motorcycle is shifted from a low gear to a high gear, a situation arises where the tiptoe must be vigorously steered or it will automatically jump up. This is a direction off the gear off the file, more common in the third gear and fourth gear. It is mainly due to the wear of the cam plate fixing pin, as well as the wear of the locking device in the fixed gear position, which leads to the increase of the cam plate rotation direction.