Common sense of professional automobile maintenance: how to adjust the idle speed?

When adjusting the idle speed, it is necessary to ensure that the ignition system is in a normal state and the engine is trouble-free. When adjusting, loosen the throttle opening adjustment screw first to make the engine reach the lowest speed without stalling. Screw in the idle speed adjusting screw with a screwdriver, and when the engine is about to turn off, screw it out slowly to make it run stably and reach high speed, and then screw out the throttle opening adjusting screw until it reaches the lowest speed without turning off the engine.

In this way, the two screws cooperate with each other and are debugged repeatedly until the throttle opening is very small and the engine runs at the lowest stable speed. Finally, increase the speed and suddenly close the throttle, so that the engine can run stably without stalling. After adjustment, if suffocation or flameout occurs, the throttle adjustment screw should be slightly screwed in to slightly increase the speed.

Generally, the interest rate should be adjusted when the engine choke is fully open, the water temperature is 60m 80C and the temperature is above 5C. Too low or too high a temperature will affect the adjustment of interest rates.