Throttle Body: Adjustments

ADJUSTING THROTTLE VALVE
Throttle stop screw Is set during manufacture and should not be moved. If screw position has been altered, proceed with basic adjustment.
- Turn throttle stop screw counterclockwise until a gap appears between the stop and the adjustment screw
- Turn throttle stop screw clockwise until it touches the stop
- Turn throttle stop screw clockwise an additional 1/2 turn
- Check idle speed and differential pressure regulator current reading
- Readjust idle speed if necessary