Polini Contessa 72cc Big Bore Kit for Minarelli 2T

Polini Contessa 72cc Big Bore Kit for Minarelli 2T Scooters

The Polini Contessa 72cc Big Bore Kit is a solid performance upgrade for 2-stroke horizontal Minarelli engines. This kit allows riders to boost their engine's displacement from 50cc to 72cc, resulting in increased power. It is designed for straightforward setup and tuning, making it a great choice for those looking to improve their ride. This product is one of the Minarelli 50cc / Yamaha jog scooter parts that can significantly improve performance without extensive modifications.

Construction and Features

This big bore kit includes a cast-iron cylinder which provides durability and effective heat retention. The aluminum piston comes with two piston rings and a 10mm wrist pin with circlips, ensuring a reliable fit. The kit also includes two 6mm exhaust studs for secure assembly.

Performance Benefits and Tuning

With a simple design, this kit is straightforward to set up and tune, allowing for a meaningful performance increase. Riders can enjoy improved acceleration and overall responsiveness without needing complex jetting or engine modifications. It’s advisable to break in the engine by riding 200–300 miles before pushing it to full throttle for extended periods.

Specifications

• Displacement: 72cc
• Piston Diameter: 47mm
• Piston Rings: 2x 47mm
• Wrist Pin: 10mm (with circlips)
• Cylinder: Cast iron
• Exhaust Studs: 2x M6
• Dimensions: 7.5" L x 6" W x 5" H

Fitment

This big bore kit is compatible with various models of scooters featuring Minarelli horizontal 2T engines, including:

• Yamaha Zuma 50 (2T)
• Yamaha BWS 50 (2T)
• Yamaha Vino 50 (2T)
• Yamaha Jog 50 (2T)
• Genuine Buddy 50
• Genuine RoughHouse 50
• Genuine Rattler 50
• Aprilia SR (Pre-2000)
• Adly: Various models

Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.

Shop more: Minarelli 50cc / Yamaha Jog Parts · Scooter Big Bore & Cylinder Kits · Scooter Parts