3. INSPECTION/ADJUSTMENT DOWNTOWN 125i FUEL LINE Check the fuel lines and replace any parts which show signs of deterioration, damage or leakage. THROTTLE OPERATION Check the throttle grip for smooth movement. Measure the throttle grip free play. Free Play: 26 mm Major adjustment of the throttle grip free play is made with the adjusting nut at the throttle body side. Adjust by loosening the lock nut and turning the adjusting nut. 3-4