Yamaha Jog / Horizontal Minarelli Polini 47mm "70cc" - Racing mt5 Comes with a 2 ring

Comes with a 2 ring piston that features a notched skirt

Rarely seen 65cc big fin kit

these heads are turned to be perfectly flat and true

but it has a little surface rust under the clear coat

Note: To achieve optimum performance re-jet the carburetor with the available jet kits

Yamaha Jog / Horizontal Minarelli Polini 47mm "70cc" - Racing mt5 Comes with a 2 ring47mm cylinder kit for Yamaha Jog, Malaguti F10 and F12, and Aprilia SR 94. (Horizontal Minarelli) 70cc cast iron cylinder kit with an aggressive modified port map for peak performance. The "R" series features an enlarged and reshaped exhaust and transfers. Possibly the nicest cast iron option for your scooter. Comes with cylinder, head, piston, rings, pin clips, and gasket set. Polini 166. 0076 R