GY6 carburetor for GY6 49cc 50cc 139QMB 139QMA 4 Stroke Engine Scooter Moped Motorcycle ATV Go KartPD18J carburetor compatible with 49 50 cc Kymco Baja Lance Peace Eagle Jonway Scooter Moped Motorcycle ATV Go KartIntake manifold side: 18mm (inner diameter), intake manifold side: 28mm (outer diameter)Air filter intake:35mm (inner diameter), 39mm (outer diameter)Item include: 1 carburetorFit for Gator 50 Fit for Baja SC50 BE50 JL50QT Fit for Schwinn Laguna 50 Hope 50 Fit for Kymco BT50QT-11 Agility 50 4T Fit for 50cc Fit for Qingqi QM50QT Fit for Tank Urban 50 Fit for Sporty 50 Fit for SL50QT Fit for Hammerhead/Adly 50 Fox 50 Fit for Lance GTR50 Fit for Jonway Beta50 Fit for Lambda 50 Fit for Longbo LB50QT Fit for MotoFino MF50QT Fit for Eagle 49cc Fit for Excaliber Vanguard 50 Fit for GT5 Fit for Zongshen ZS50QT Fit for Jinlun 50cc scooter Fit for Sunny 50cc scooter Fit for NST 50cc scooter Fit for Biaotian BT49QT-2,BT49QT-7,BT49QT-9,BT50QT-9,BT50QT-11 Fit for Zongshen Metro 50 SL50QT-1