Seller notes

Specification: Material: Metal Head:  64mm valves Cylinder Size :  50mm ID Diamater: Intake Valve Diameter: 18mm Exhaust Valve Diameter: 16mm Performance Racing CDI (AC Fired):70mmx30mmx37mm Performance Racing Coil length:360mm Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) Please Compare The Scooter Kit With Your Original One Before Purchasing！ Fits (For the reference): ✅For 139QMB & 1P39QMB /GY6 4 Stroke Chinese Scooters NOTE: Installation Manual Is NOT Incl...

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