What is throttle cleaning? Must I take it down and wash it?

Simply put, the throttle is the throat of an automobile engine, which is located between the air filter and the intake manifold. This is a controllable valve to control the air entering the engine. The depth of stepping on the accelerator is directly related to the opening of the accelerator, so the performance of idle speed and power is closely related to the cleanliness of the accelerator.

The throttle should be removed for cleaning, and it is difficult to clean it without removing it.