Menace85 SS Kit

The Menace85 SS bolt-on kit! 8.3HP!! Upgrades: 52mm Bore x 40mm Stroke CNC Smolik Head Balanced Crank "MZ65 Style" Expansion Chamber Pipe PHBG 21mm Carburetor  CNC Piston Port Intake Standard Parts: 36t Sprocket and Hardware 4 Bolt Chain Tensioner Clutch Lever and Cable 415 Chain CDI Fuel Tank and Hardware Chain Guard Throttle Assembly Optional: Porting the cylinder, cleaning up the ports, and adjusting port timing. Additional 2-4 week lead time. Important Notes Pipes are made to be a "Universal" fit. Slight adjustments may be needed to fit your frame due to slight frame, engine, and pipe manufacturing variations.  While we check over every pipe, small pinhole leaks are inevitable and unavoidable. Pipes will not be warrantied for such symptoms.  All engines are shipped with large squish (1.0-1.4mm) to ensure safety when first tuning. You may remove 1 of the 2 base gaskets to decrease squish for increased power but be aware this will cause extra wear and tear on the bottom end. DO NOT go below 0.8mm squish.  The carbs are tuned rich by default for engine safety. For optimal performance, the carbs must be tuned for your environment. 80-90 main jet range is expected, using Dellorto 5mm Round Jets.