What is the performance of the throttle problem?

There is something wrong with the throttle: failure to start, stepping on the throttle after starting, emitting black smoke, high fuel consumption, high idle speed and unsmooth acceleration are all signs that the throttle is broken. 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. The throttle valve is connected with the air filter and the engine block, which is called the throat of the automobile engine. Correct and standardized throttle cleaning can ensure the normal operation of the engine, but the cleaning must be controlled, and excessive cleaning will lead to premature scrapping of the throttle.