Pomelnic tipizat individual Cometic 90 98 Yamaha YZ250 Bottom End Gasket Kit. Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley Davidson and V Twin applications. This Part Fits: Year Make Model Submodel 1992 1994 Yamaha WR250 Base 1992 1998 Yamaha YZ250 Base