I have an Kawasaki FD750D, 27 hp, water cooled engine on my Scag mower. I'm having a problem with it, that we can't quite figure out ( see http://www.lawnsite.com/showthread.php?t=278085&page=4&highlight=kawasaki+FD661D+loses+power). The Kaw manual shows also the FD 671D and FD 711D as similar engines. My question here, is does anyone use this engine on any of their equipment? I'm having a hard time finding a service man that is familiar with the engine, since most mowers use air cooled engines. I'm trying to see if it's used in maybe some other application like a tractor model, or some mower other than mine.