Seller notes

Scooter Big Bore Performance Kit, Fits The QMB139/GY6 Based 50cc Four Stroke Chinese Scooter Engines. This is a 50mm Bore, Comes Complete with Cylinder, Piston Set, Gaskets, Complete Head Already Assembled (64mm Valve Length), Performance Air Filter, Performance A 9 cam ,Performance Variator with 6.5 Gram Roller Weights,50cc 20 mm carburetor, #90,#95,#100 carb jets for fine tuning your engine Performance Blue Exhaust , (64mm) Rocker arms , Performance CDI Box ,Intake spacer , o ring ,Fuel filter...

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