Yamaha YFS200 Blaster Top End Repair Kit - 1.00mm Oversize Piston to 66.92mm, 6.6:1 Compression Ratio (Fits 1997 Models) - Engine Rebuild & Performance Upgrade for ATV & Off-Road Vehicles

Top End Repair Kit - 1.00mm Oversize to 66.92mm, 6.6:1 Compression For 1997 Yamaha YFS200 Blaster ATV Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kitMOS2 (Teflon/Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizuresMachined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%Anodized Domes Increases heat re_sistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistonsHypereutectic Casting Process Provides higher silicon content for reduced expansion rates and additional wear re_sistance; it also has an ability to withstand higher cylinder temperatures *Bore Diameter: 66.92mmSold Each - Order Quantity Appropriate For Your Machine.