Athena 47.6mm Vertical Minarelli Cylinder Kit
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Athena 47.6mm Air Cooled Vertical Minarelli/Yamaha Zuma Big Bore Cylinder and Head Kit. Kit includes cylinder, cylinder head, piston, ring, piston pin, cir clips, head gasket, base gasket, exhaust gasket and carbon fiber reeds. When you use this Athena 47.6mm Big Bore Kit you will increase your total displacement to 70cc! Fits "Pre-Bug Eye" Zuma (1989-1990, 1997-2001) *You may need to modify your engine case to accommodate the larger cylinder. Upgrades to 70cc Aluminum Construction with Nickel Carbide Plated Bore Cylinder Bore: 47.6mm Cylinder Sleeve Outer Diameter: 50.75mm Wrist Pin Diameter: 10mm Total Piston Height: 48mm Compression Height (from center of wrist pin hole to top edge of piston): 26mm Includes Carbon Fiber Reeds Yamaha This product is not intended for use on public roads or land.
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