Step up to "Mid-Race" power with the Polini Corsa Cylinder Kit. While based on the legendary Polini 70cc Sport, the Corsa is factory-tuned with revised port timing and a polished exhaust port to deliver significantly more horsepower and higher RPM ceilings. This cast-iron kit combines the bulletproof reliability of a daily driver with the aggressive acceleration required for the track.
This kit is designed for Horizontal Minarelli-based 2-Stroke engines. It is a direct-fit performance upgrade for:
Note: Not compatible with AF05E engines (pre-1994 model years).
Mechanic's Note: The Corsa is a high-revving kit. To prevent engine failure, you must increase your oil-to-fuel ratio by adding 1oz of high-quality 2-stroke oil per gallon of gas. Additionally, this kit performs best when paired with at least a 17.5mm or 19.1mm Carburetor and a mid-race expansion chamber exhaust.
Part Number: 1100-1486 Manufacturer: Polini Motori (Italy)
Polini Corsa big bore (70cc) racing cylinder kit for Genuine Buddy 50, RoughHouse 50, and Rattler 50 scooters, Zuma 50 2T, and other horizontal Minarelli-based engines. Not compatible with AF05E engines (pre-1994 model years).
NOTE: It's important to properly break in your big-bore kit for 200-300 miles before running your bike full throttle for any extended length of time. We also recommend adding one ounce of 2-stroke oil to your gas tank; 50cc oil injectors
