
When the motorcycle jerks while throttling off, it is usually caused by excessive carbon buildup in the throttle body or reduced fuel injection. Causes of Carbon Buildup: If there is excessive carbon buildup in the throttle body, it is necessary to promptly visit a 4S shop or repair shop to clean the throttle body, which will resolve the jerking issue when throttling off. Reduced Fuel Injection: The combustion of fuel, which is the power source of the engine, is determined by the engine's ignition, air intake, and fuel injectors. If the air intake decreases, ignition weakens, or fuel injection reduces, the power output will be insufficient, resulting in a jerking sensation.


