What Causes Motorcycle Vibration?

[StColeman]

Motorcycle vibration can be caused by the following reasons: 1. Poor engagement of the rear clutch. When the engine speed increases, the shoe should properly grip the clutch bell. If this bothers you, simply replace the rear drive plate at a repair shop. 2. A loose belt in a scooter-type motorcycle may cause weak starting power and body vibration. Try replacing the belt, and while doing so, check if the centrifugal transmission is worn out. 3. Engine vibration may occur due to loose engine mounting screws or a broken frame. Inspect the engine mounting screws, front sprocket, sprocket seat, wheel bearings, and sprocket cushioning areas. 4. Excessive wear or dust accumulation in the drive belt pulley. Remove it to clean the dust, check if the pulley shoes are heavily worn or if the return springs are broken. Lightly sand the shoe surfaces with a flat file and reassemble for testing.