my engine was running great after getting it out of the shop this season for about 2 mo. Then the next time I took it out I lost the upper end. It wasn't any speeder on it's best day, about 35 tops. but now It just get to a plane. After checking it out it looked liked I had water in the top cylinder because that plug was really clean so I changed both the head and exhaust gasgets. but still no change. I'm not sure if my block is bad or what. what I really want to do is put a new motor (biiger hp) in this boat because I really like the hull design of this boat but I'm not sure what or if I should spend more money on it. does anyone know if a 120 force motor will fit on a 90 hp sportjet trans. is the pinion a differet size. if anyone can I'd be appec.
