47mm Big Bore Complete Cylinder Rebuild Kit Head Comp fit for 4 Stroke GY6 49cc 50cc 139QMA 138QMB Engine Parts Chinese ATV Quad Scooter Go Kart (69mm upgrade valve)

Hauertzx 47mm Big Bore Complete Cylinder Rebuild Kit Head Comp fit for 4 Stroke GY6 49cc 50cc 139QMA 138QMB Engine Parts Chinese ATV Quad Scooter Go Kart

• Fitment: GY6 49cc 50cc 4-stroke engines (139QMA 139QMB), Fitment for Chinese scooters, ATVs, Quads, and Go Karts.
• Compatible For: GY6-50cc/80cc Engine Most Chinese Brand Vehicle like Roketa, Sunl, Baja, Kazuma, Carroll Stream Eagle, Taotao, Panterra, Redcat Tank Giovanni Aimex Jackel Wildfire Xtreme Seaseng Qlink Yiben Jonway Jmstar, Vento, Tng, Apollo, BuYang, Coolster, JCL, Jetmoto, Jonway, Kinroad, Loncin, Motobravo, Polaris, SSR, TTR, Yamoto, Znen, Zongshen, etc
• Package Included: 47mm Cylinder Head with 69mm valve, 47mm Bore Cylinder Block, Set of 47mm Piston Assy, Piston, Rings and Wrist Pin, Full Set of Engine Gasket, 6pins CDI, Ignition coil, 4pin AC regulator, relay, A7TC Spark Plug, Set of Intake Manifold and Muffler Bolts, and Exhaust locking ha, Set of 8.5 Gram roller , Rocker Arms, Valve Seals, Oil Pump Assy with Driving Gear, Camshaft, Camshaft chain 82, belt 699*18*30, Chain adjuster, Oil screen, spring, cover and oil seal, Starter clutch,Starter gear kits
• Noted:Not suitable for EGR engines