Stock 650cc. Cylinder Sleeve for Yamaha XS650
Stock 650cc Cylinder Sleeve. Replaces damaged or worn out original sleeve so engine can go back to stock piston size (approx. 74.94MM. or 2.95" ) or any of it's oversizes. ID, OD, length and thickness dimensions are the same as original.Fits: All 1970-84 stock cylinder blocks.Note: After installation of sleeve into your cylinder, sleeve must be sized(bored/honed) to accept the pistons you are using. This operation should be performed by a competent professional machine shop.