Large selection of chinese 50cc scooter parts, 50cc gas scooter parts, 50cc scooter parts and accessories, 50cc moped parts, your one stop scooter parts & moped parts shop, Welcome shop parts for scooters at Scooterpartshouse. There are two kinds of engine used in Chinese 50cc scooters mostly: GY6 50cc Scooter Engine(also kown as 139QMA, 139QMB, QMB139, 50QTB) Jog 50cc Scooter Engine(also kown as 1PE40QMB 1E40QMB) http://www.scooterpartshouse.com