How to adjust the idle speed of He Yue RS4G93D engine?

The idle speed of the engine is usually 700 to 900 revolutions per minute. Every model is different, so the idle speed is different. If it is an electronic throttle, the idle speed cannot be adjusted. Pulling the throttle can slightly loosen the adjusting screw of the throttle spring, as long as the engine does not turn off after the refueling door.

Adjustment shall meet the following conditions:

1. Install air filter, clean or replace filter element;

2. The engine coolant is at normal working temperature; 3, choke valve should be fully open;

4. Cut off all auxiliary equipment;

5. Connect all vacuum hoses;

6, ignition timing should comply with the regulations;

7. The transmission should be in the park/neutral position;

8, carburetor float chamber oil level should be within the prescribed scope.