What Causes Abnormal Noise When Shifting Gears on a Motorcycle?
2 Answers
Abnormal noise when shifting gears on a motorcycle can be caused by the following reasons: Improper operation: When starting the vehicle, the throttle must be closed to the minimum to reduce the chance of abnormal noise. If you increase the throttle before shifting, most vehicles will produce abnormal noise. Normal performance: This is mainly related to the design and manufacturing process of the vehicle. If the manufacturing precision is not up to standard, the clutch may not disengage completely, resulting in a noticeable noise when shifting into first gear, often accompanied by a jerking forward motion of the vehicle. Clutch malfunction: As the vehicle ages, the clutch may not disengage smoothly, leading to abnormal noise. This sound can be reduced or completely eliminated through maintenance.
I just started riding a motorcycle, and the strange noises when shifting gears have me quite worried. A common cause is improper clutch operation—if you don’t pull it in fully before shifting, the gears can clash and make a clunking sound. A chain that’s too loose or too tight can also cause a jumping or rattling noise. Once, my chain wasn’t adjusted properly, and it made a loud noise when turning. Since then, I always check the chain tension with my fingers before each ride, keeping it within the manufacturer’s recommended tightness. Dirty or insufficient engine oil can also lead to insufficient lubrication in the transmission, causing creaking sounds. Remember to change the oil regularly and check the chain lubrication to prevent these minor issues. Strange noises aren’t just annoying—they can also distract you and affect safety. So, as a beginner, it’s important to develop good habits: operate the clutch decisively and avoid shifting in a half-clutch state. If the noise persists, it’s best to visit a professional shop to rule out internal gear wear.
