Why does a motorcycle jerk during acceleration?

[GageLee]

Motorcycle jerking during acceleration may be caused by issues such as lugging, fuel supply, carburetor, electrical circuit, or air filter problems. Additional details are as follows: 1. Lugging: For motorcycles with gears, if the gear and throttle are not properly coordinated, selecting too high a gear can result in insufficient power output, causing jerking, commonly known as lugging. In this case, simply downshifting will resolve the issue. 2. Fuel supply problem: A slightly clogged fuel tank cap or gasoline filter can cause uneven fuel supply at high throttle. 3. Carburetor issue: A slightly clogged carburetor can also lead to uneven fuel supply, and cleaning the carburetor usually solves the problem. 4. Electrical circuit problem: Check the spark plug for excessive carbon deposits. If there is a lot of carbon buildup, it may be due to an overly rich mixture from the carburetor, causing incomplete combustion. Adjust the carburetor's mixture ratio and scrape off the carbon deposits. 5. Clogged air filter: This can result in insufficient air supply, leading to an overly rich mixture, incomplete combustion, and reduced engine power. If clogged, it is recommended to replace the air filter or clean the filter element thoroughly.