Where is the idle speed adjustment of Ruifeng m3?

Open the engine cover of Ruifeng m3. There is a Torx screw in front of the throttle position, which is the screw for adjusting the idle speed. Use an Allen key to adjust. Clockwise rotation can increase idle speed, and counterclockwise rotation can decrease idle speed. The following is the relevant information: 1. The idle speed of a car refers to a working condition. When the engine is idling, it is called idling, that is, the gear of the car is neutral. The engine speed at idle speed is called idle speed. Idle speed can be adjusted by adjusting the size of air door. When the engine is running, if the accelerator pedal is completely released, the engine will be at idle speed. When adjusting the idle speed, the speed should not be high and low, otherwise it will cause early wear and tear to the engine, so it is best to adjust it in the automobile maintenance department. 2. Too high or too low idle speed is harmful. Excessive idle speed, fuel consumption and high engine operating temperature will increase machine wear. Low idle speed makes it easy to stall when starting, and frequent starting of the engine is not good for the starter. Low idle speed is easy to cause gear shifting and flameout during driving, which is very dangerous. Especially when it is close to the car, it is easy to rear-end. In addition, the engine idling jitter causes great losses to the engine.