How do you adjust the idle on a 1994 Hyundai excel?

To adjust the idle on a 1994 Hyundai Excel, first ensure the engine is warm. Locate the idle adjustment screw on the throttle body; it may be covered by a plastic cap. Turn the screw clockwise to increase the idle speed and counterclockwise to decrease it, checking the RPM with a tachometer as you adjust. After adjustments, let the engine run for a few minutes to stabilize the idle speed before finalizing the setting.