Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set

The 69mm valve length upgrade kit is compatible with a wide range of 49cc and 50cc 4-stroke scooters, including models from Jonway, Warrior, Agility, People, Suer, Pagsta, Baja, Motorsports, Sun City, Primo, DR, Dirt Runner, Baotian, Dotera, Eton, Jalon, Jinlun, Roketa, Sinski, SSR, Sunl, Tank, Taotao, and Verucci. This comprehensive kit provides the necessary components to upgrade your GY6 engine from 50cc to 100cc, without the need for an EGR system, resulting in increased RPM, power, and top speed.

The key specifications of this upgrade kit include: - Bore: 50mm - Displacement: 100cc - Valve Length: 69mm

The package includes the following components: 1. One set of 6 Gram Racing Pure Copper Roller Weights 2. One Cylinder Head with 69mm valve and updated Camshaft 3. One Rocker Arms Assembly 4. Two Valve Seals 5. One Oil Pump Assembly with Driving Gear 6. One 50mm Bore Cylinder Block 7. One set of 50mm Piston Assembly, including Piston, Rings, and Wrist Pin 8. One Full Set of Engine Gaskets 9. One set of Intake Manifold and Muffler Bolts, and Exhaust Locking Hat 10. One 6-pin Racing AC CDI 11. One Racing Ignition Coil 12. One Racing 3-electrode A7TC Spark Plug 13. One set of Clutch Small Racing Spring 14. One Racing Clutch Big Spring

This comprehensive kit simplifies the installation process, providing all the necessary components to upgrade your 50cc scooter engine to a larger 100cc displacement. The upgraded engine will deliver more power, higher RPM, and increased top speed, without the need for an EGR system.

The kit is compatible with a wide range of popular 49cc and 50cc 4-stroke scooter models, including those from Jonway, Warrior, Agility, People, Suer, Pagsta, Baja, Motorsports, Sun City, Primo, DR, Dirt Runner, Baotian, Dotera, Eton, Jalon, Jinlun, Roketa, Sinski, SSR, Sunl, Tank, Taotao, and Verucci. This makes it a versatile solution for those looking to boost the performance of their 50cc scooters.

Whether you're seeking greater acceleration, top speed, or overall riding enjoyment, this 69mm valve length upgrade kit is a comprehensive and straightforward solution to enhance the capabilities of your 49cc or 50cc 4-stroke scooter.

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