What is the idle speed?

[OJosie]

An idle speed of 700-800 RPM is normal. The following are the hazards and solutions when the idle speed is out of the normal range: Hazards and solutions for high idle speed: Excessive idle speed will increase fuel consumption and also lead to carbon buildup in the car engine. It is necessary to check whether the intake manifold is loose or leaking. Hazards and solutions for low idle speed: If the car's idle speed is too low, there is an immediate safety risk of stalling while driving. If the car's idle speed fluctuates, it may be due to the spark plugs or ignition coils not working properly, causing the engine pistons to malfunction and resulting in severe vibrations. Adjust the throttle opening adjustment screw to ensure the engine temperature is normal, valve clearance is appropriate, ignition system is functioning properly, all pipes are well sealed, choke valve is fully open, and throttle valve can close tightly.