How often should the pilot throttle be cleaned?

The following is about "How often do you clean the pilot throttle valve?" Related introduction:

It is recommended to clean the pilot throttle every 20,000 kilometers. After the gas enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be burned to do work. The role of the throttle:

1. The throttle valve 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;

2. It is called the throat of an automobile engine, which is connected with the air filter and the engine block. Throttle four-stroke gasoline engines are generally like this;

3. Throttle is one of the most important components in EFI automobile engine system. Its upper part is the air cleaner grille, and the lower part is the engine body, which is the throat of the automobile engine.