CIAO 65 POLINI STAGE 2!!! | Meglio del 75cc!!

Today I'm introducing my new 65cc Polini street engine for my Ciaetto! I decided to install a new Mazzuchelli racing crankshaft and rework the crankcases to increase the block's performance without modifying the cylinder, ensuring good reliability. Everything was mounted on C3 bearings and two base gaskets were used to slightly raise the timing. The engine was then fitted with a 13/13 carburetor with a Malossi filter, Giannelli Fire, and an 80mm pulley transmission. In one of my next videos, I'll show you the true potential of this block and its top speed!