Engine 50cc complete 12 inch QMB 4 stroke China scooter with SLS

Complete engine with SLS 12-inch QMB 4-stroke DESCRIPTION: Is your scooter's engine past its prime? We offer a complete replacement engine for all common Chinese scooters with 12-inch tires. If a piston seizes or a crankshaft is damaged, the cost of repairs can easily become too much – so it may be worth replacing the entire engine. TECHNICAL DATA: - Engine type: 139QMB with short shaft (126 mm) / 12-inch version - for vehicles with rear drum brakes - Secondary air system (SLS): yes - Gearbox shaft: short 126 mm (protrudes approx. 30 mm from the engine block) - V-belt length: 729 mm NOTE: Important: Please check the oil level before starting the engine for the first time! SCOPE OF DELIVERY: ? Complete engine block including alternator and starter motor