Cylinder Polini Corsa '89-'01

Polini Big Bore Kit-This is for the "pre- Bug" Vertical  engine '89-'01

Polini Corsa Big Bore Kit for the Pre-2002 Yamaha Zuma 50cc 2-stroke. This is the vertical cylinder engine.
Not legal for use in California

47mm Bore, 10mm Pin, 72cc

  Good torque, good  horse power.