What causes excessive vibration when accelerating a motorcycle?
2 Answers
1. Rapid gas expansion in the cylinder during gasoline combustion causes vibration; this may be related to fuel quality or using gasoline with an incorrect octane rating. 2. Check if the clutch is functioning properly; the relationship between the clutch pressure plate and friction disc is interdependent. When the friction disc has issues, it accelerates wear on the pressure plate and even the flywheel, mainly manifesting as difficulty shifting gears, incomplete disengagement, and shaky starts. 3. It could be due to excessive clearance in the engine's cam, rocker arm, valves, or damaged bearings/bearing seats.
I feel that the motorcycle vibrates too much when accelerating, and the reasons are quite common. When the chain is loose or severely worn, the power transmission becomes unstable during acceleration, causing shaking; damaged engine mounts fail to cushion the vibrations; unbalanced tires, uneven tire pressure, or patches on the tread make the ride even more shaky; dirty spark plugs or improper ignition cause rough engine operation; fuel supply issues like clogged injectors also lead to uneven performance. When riding, I just need to check the chain tension and tire wear, and if it's not fixable, take it to the shop—don't push through and compromise safety. Regular maintenance can prevent this issue; otherwise, excessive vibrations make it hard to control the handlebars, which is quite dangerous.
