What is the performance of dirty motorcycle throttle?

When the motorcycle throttle is dirty, the following phenomena will occur: 1, and the throttle is badly stuck: the throttle is dirty, and the most obvious performance is that the speed is slow when stepping on the throttle and the speed rises slowly when idling, and the speed drops immediately when releasing the throttle; 2. Idle jitter: One of the most obvious problems that will directly affect the accuracy and smoothness of engine intake is that it may cause idle jitter or even flameout, and the throttle speed is not smooth; 3. Engine operation is affected: If the throttle valve is dirty to a certain extent, engine operation may be affected.