3. INSPECTION/ADJUSTMENT SUPER8 50 2T Throttle Stop Screw ENGINE BODY At High and Low Speeds The engine must be warm for accurate idle speed adjustment. Adjust the idle speed to the specified range by turning the throttle stop screw and air screw. Idle Speed: 1850100rpm Air Screw Air Cleaner Remove the air cleaner cover by removing the five bolts cleaner cover screws. Screws Remove the air cleaner element. Air Cleaner 3-9