FUEL PUMP VACUUM DIAPHRAGM PETCOCK FOR GY6 50cc – 150cc SCOOTERS *TYPE 3*

It will change normal GY6 50CC, 60CC, 80CC to 120CC without modify the engine
Item CY71-520-2
Diameter of the Kit(mm) 52
Diameter of Piston Pin(mm) 13
Diaplacement 88CC~120CC
Outer Diamter of Cylinder Skirt(mm) 55
Middle Height of Cylinder(mm) 53.2
Total Height of Cylinder(mm) 71
Total Height of Piston(mm) 34
Compression Height of Piston(mm) 17.5