I purchased a new Wright Stander 19hp Kawasaki 601V. There was an out of state deal on this brand new unit that I couldn't pass up. My dilema is that I need 25hp. From a reliable source I was told that the 19 - 21 - 23 - 25 hp models are identical with the exception of the carburation jetting. I phoned Kawasaki. Too say they were tight lipped was an understatement. Has anyone made this jetting conversion? I was also thinking about putting on the canister filter upgrade.