How to Adjust the Idle Speed of a Car?

[OAlexa]

Car idle speed adjustment method: 1. After fully releasing the throttle handle, leave a certain amount of free play, install the air filter, ensure the performance of other components is intact, start the engine, let it warm up, and first open the choke; 2. Begin the adjustment by first screwing the air adjustment screw all the way in, then reversing it one turn, then adjust the throttle screw to ensure the engine can run at a certain speed even when the throttle handle is fully released; 3. Try to lower the idle speed first, reducing the engine speed as much as possible; 4. Then try to increase the idle speed, also adjusting the air adjustment screw, aiming to make the engine speed as high as possible; 5. Repeat these steps continuously, adjusting several times until you find a satisfactory idle speed.