5. FUEL SYSTEM UXV 500 Slow Jet Needle Jet Holder Remove the slow jet. Remove choke jet. Remove main jet. Remove the needle jet holder. Main Jet Remove the needle jet. Remove the pilot screw, spring, washer and O-ring. Before pilot screw removal, slowly turn Needle Jet the pilot screw clockwise and count the number of turns until the screw is lightly seated. Make a note of how many turns were made so the screw can be reset correctly. Pilot Screw 5-9