1-Namura Ring Set
1-Namura Wrist Pin
2-Namura Circlips
1-Namura Top End Gasket Set with Valve Seals
Cast Piston has Super-High Silicone Content for Additional Strength
Piston Skirts are Molybdenium Teflon Coated,
to Minimize Resistance/Wear & Provide Extended Life
Piston Dome is Anodized for Superior Heat Resistance & Longer Lifespan
100 mm STD (Stock) BORE
Piston Diameter Size is 99.97 mm)
2001 2002 2003 2004 2005 Yamaha Raptor 660 (YFM660R) 4-Stroke