

POLINI EVOLUTION 3 CYLINDER KIT FOR YAMAHA-MINARELLI ENGINES: GREAT PERFORMANCES TO BE NUMBER ONE
New aluminum Polini L/C Evolution 3 kit for Yamaha engines and Minarelli. The 47.6 is approved to compete in all the scooter championships in the world and has the bridged exhaust port again. The new bridged port design allows the exhaust to be much larger, which is very important to achieve maximum acceleration and more power at all rpm. The cylinder head is made of two pieces, it is made with a central dome that functions as the combustion chamber and a cover designed to better dissipate heat. It is possible to assemble the kit without modifying the original casings. To achieve the best performance it is suggested to replace the crankshaft, although not is mandatory.
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