Hi. First timer here. Long time member of AOMCI club. I acquired a Mercury MK 78 hydro motor at the Precision Marine estate sale. I need to part with it as no AOMCI members seem to have any interest in it. All info on this motor can be found by searching : Bayer Racing Equipment. What have I got? The owner asked many questions and all the info on it is there. It is a class F, gas engine. Motor is located in Grand Haven, Michigan 49417.