Ø45 mm cast iron piston cylinder Yamaha Chappy Polini 65

Upper engine Polini 65cc Yamaha Chappy 50

Piston kit new complete adaptable for motorcycle 50cc Yamaha Chappy from 1973 to 1996. Also consider replacing the piston pin needle cage with dimension 12x15x15 mm which is not supplied in the high engine kits (this bearing is sold separately). This engine configuration is strictly reserved for use on circuits or private grounds.

This piston cylinder block kit includes

• 1 x cylinder block
• 1 x piston
• 1 x set of seals
• 2 x piston rings
• 2 x circlips
• 1 x gudgeon pin

Technical characteristics and dimensions of the cylinder block kit

• Mark: Polini
• Manufacturer no .: 166.005
• Cylinder color: black
• Cylinder block material: cast iron
• Piston diameter: 45 mm
• Piston pin diameter: 12 mm
• Outer diameter thread muffler fixing: 42 mm
• No threading: 1.25