Piston Kit: 010-826-04k .25MM Over 84.25mm Bore. Fits: Yamaha 760/1200 Non-PV. Made to exact OEM specifications Piston Kits Include: 1 Piston, 1 Ring Set, 1 Wrist Pin, 1pr CirclipsFits Yamaha 760 Models: GP 760; WAVE RAIDER 760; WAVE BLASTER 760; WAVE VENTURE 760; WAVE RUNNER 760; XL 760 All 1200 Non-PowerValve 1200 Models: GP 1200; SUV 1200; XL 1200**Prior to placing your order please measure your cylinders to determine the appropriate size required. Most pistons come in .25mm increments from stock or standard bore up to 1mm oversize. Refer to your shop service manual for guidance on the procedure or have the cylinders evaluated by a qualified machine shop**