Cylinder Kit Fits Yamaha C7HSA0000000 934501408800MK1000929 Cylinder Kit Includes Cylinder, Piston, Piston Rings and Wristpin and Circlips Also included are Head Gasket, Base Gasket and an Fits NGK Spark Plug Cylinder Bore and Stroke 4700mm x 4560mm OEM Compatibility 1985 Fits Yamaha Badger 80.