Engine models include QMB139,
QMJ152 and QMJ157. Gas scooters are imported
under a few different name brands. Here is a list of scooter brands that use
the same parts.
Roketa, JM Star, Yamati, Tank, Baron, Baja,
Verucci, Geely, Kaitong, Meiduo, Jonway,
Lance, Kinroad, Ricardo
and Vento just to name a few. Most Chinese 49/50cc four stroke
scooters use the QMB139 50cc engine and the 125/150cc four
stroke scooters use the GY6 engine.