Developed in our top-secret shop with help from our partners at Martin Racing Performance!
Take a look under the left side of your motor. If the motor number begins with QMB139 then you're in business! This Chinese 49/50cc engine is used on many of the 4-stroke imported scooters including the new KYMCO 4 stroke units.
Some common brands and names being imported are: EVO 50cc, Zongshen Metro 50cc, Baja Powersports (PEP BOYS made by Zongshen) Baja SC50, Strada RX 50 (4 stroke) Powersports Factory, Jalon JL50QT-21, Falcon and JL50QT-15, JL50QT-16 , Pantera Freedom, Fusion and Retro, Verucci VC50TS-3M, Sunl SL50QT-16, SL50QT-16, SL50QT-18, SL50QT-2, SL50QT-3, Roketa Bahama, Maui, Sicily, Tank, Baotian 50QT-9, Baotian, 50QT-11, Dotera 50QT-11, Jalon JL50QT-18, Sinski XSJ50QT-6, Sinski XSJ50QT-B, Taishan Commuter, Taishan Sport Zhong Hu 50cc 4t and many more..... this list is continually growing!