Can the idle speed of Haval H 1 be adjusted?

Adjustment method of engine idle speed: When the engine idle speed is unstable, it should be adjusted when the engine temperature is normal and the oil circuit is trouble-free. (1) Slowly loosen the throttle opening adjusting screw with a screwdriver (commonly known as screwdriver, screwdriver). When the engine is about to turn off, screw it in a little bit to keep the engine running. (2) Adjust the idle air mixing adjustment screw. Get the engine running.