Polini evolution 3-yamaha/minarelli cylinder kit for motorcycle spare parts moped accessories

€423.49
Tax included
Polini evolution 3-yamaha/minarelli cylinder kit for motorcycle spare parts moped accessories
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Out of stock

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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.

TECHNICAL CHARACTERISTICS:

  • Power unit designed for high performance.
  • Cylinder capacity increased with diameter 47.6 mm interior.
  • Light alloy cast cylinder.
  • Closed Deck system for internal coolant flow.
  • Cylinder liner with coating of nickel-silicon.
  • Five exhaust transfers of new design.
  • Larger exhaust port with central bridge.
  • Better exhaust gas sweep exhaust
  • Increased performance at high speeds.
  • Gravity cast piston in light alloy with high silicon content
  • Chrome-plated cast piston rings S10 .
  • Light alloy cylinder head.
  • Combustion chamber with specific crushing to eliminate detonation.

Aluminum Composition
Diameter Ø ( mm) 69.76
POLINI
VM1123488

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Polini evolution 3-yamaha/minarelli cylinder kit for motorcycle spare parts moped accessories

Polini evolution 3-yamaha/minarelli cylinder kit for motorcycle spare parts moped accessories

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