Wiseco 86 91 Kawasaki JS300 ProLite (549M07750) Piston Kit Our Nudist Moments Nude Boating Time at South China Sea Filipinonudist. Classic Forged 2 stroke pistons are perfect for those looking to rebuild their 2 stroke engine with reliable, high quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail. This Part Fits: Year Make Model Submodel 1986 1988 Kawasaki JS300 Base 1987 1991 Kawasaki JS300 300SX Base