47mm Big Bore Head Cylinder Piston Kit Suitable for Yamaha Clone Jog50 to 70CC

Compatible with:

Suitable for Yamaha Jog / MinarelliI / Yamaha Clone

Suitable for Yamaha Jonway / Jmstar /Roketa / Sunl 

Specifications

Type: Cylinder Big Bore Kit

Material: Metal

Displacement: 70cc

Master Cylinder Size: 110x95x80mm / 4.33"x3.74"x3.15"

Cylinder Head Size: 100x90x35mm / 3.94"x3.54"x1.38"

Piston Size: 48x47mm / 1.89"x1.85"

Wrist Pin Size: 38x10mm / 1.50"x0.39"

Package include:

1 Kit Cylinder Big Bore (as picture show)

Description :

70cc 2-stroke big bore kit for chinese scooters. 

This kit has a 47mm cylinder bore and 10mm wrist pinIncludes wrist pin bearing. 

47mm Big Bore Head Kit for 50cc 2-stroke 40QMB, E40QMB, 1E40QMB AND 1PE40QMB for Minareliengines to increase drive power.

Featrue:

The kit includes a piston, ring, pin, fixture, and top washer kit (as shown in the figure).

Cast pistons have additional strength with ultra-high silicon content.

The piston skirt is coated with molybdenum polytetrafluoroethylene coating to minimize resistance/wear and extend service life.

The piston dome has undergone anodizing treatment, providing excellent heat resistance and longer service life.

The gasket is made of high-performance materials to improve durability and provide higher reliability.

All components in the kit are bolted and can be easily installed.