The throttle valve is matched with the air filter.

Will affect the normal operation of the engine.

Because the throttle valve is matched with the air filter, the air inlet of the engine will be too dirty and the gas will be wet, which will affect the normal work of the engine.

Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, and the combustion is successful.