Features: This electronic choke carburetor will fit almost all 4-stroke GY6 50CC scooters Air filter intake: 39mm (outer diameter) Air filter intake: 35mm (outer diameter) Intake manifold side: 28mm (outer diameter) Intake manifold side: Outer 19mm Diameter) Electric choke (plug style): 2-pin, male PumpFits models: 50, Roketa, SUNL, JCL, QM50QT-6V, Vento, Various manufacturers/models not included, Tank, Wildfire, Boss, QM50QT-4G, Baja, Baja-P, Retro 50cc, Freedom 50cc, CFMoto, 50, Hope 50, Kymco, BT50QT-11, Fusion 50cc, X-Treme, Lifan, Verucci, Qingqi Package includes: 1 moped carburetor