What happens when the throttle is dirty?

1, dirty throttle will cause the body to shake when starting, and it will also shake when driving.

An important reason for this situation is that the accelerator of bicycle is too dirty. Because there is too much colloidal carbon or dirt around the throttle, the cross-sectional area of the air passage will change, which leads to the control unit not being able to accurately control the idle intake, resulting in the mixture being too rich or too lean.

3. Another factor is carbon deposition in the intake system, that is, there is a large amount of colloidal carbon deposition near the valve seat and around the idle motor, which leads to the mixture being too rich and too lean. Will form the phenomenon of idle jitter, especially when the cold car starts.