Wiseco 90 96 Yamaha WaveRunner SuperJet (602M) Piston Kit 4K Abstract Wallpapers Group (81+) Abstract Cool 4K Wallpapers at August Kaiser blog Abstract Cool 4K Wallpapers at August Kaiser blog. 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 1990 1993 Yamaha SJ650 Super Jet Base 1990 1992 Yamaha WR650 WaveRunner LX Base 1990 1993,1995 1996 Yamaha WRA650 WaveRunner III Base 1991 1995 Yamaha WRB650 WaveRunner VXR Base