The idle speed of Cheetah Black King Kong hot car is unstable.

Causes and maintenance methods of unstable idle speed of hot car;

1, check whether the throttle is dirty or blocked, and remove the carbon deposit on the throttle; Working state of idling motor; Then check whether there is too much carbon deposit at the air inlet. Carbon deposition in the air inlet will narrow the cross-sectional area of the air passage, and the control unit can't accurately control the idle air intake, resulting in too rich or too lean mixture, which will lead to abnormal combustion and engine jitter.

2. Check the conditions of spark plugs, high-voltage lines and ignition coils in the ignition system. If the ignition system is poor, the spark plug will lead to unstable idle speed of the hot car; Check whether the spark plug has too much carbon deposit, remove the carbon deposit or replace the spark plug.