first thing i would do is get the overheating issue solved. the plastic impeller and gear are prone to stripping out. definitely need to get this fixed so you dont run it too hot. take off the plastic cover on the clutch cover, then take the little metal cover off (antifreeze gonna come out), then check out the impeller. if its not chewed up then put a little pressure on it and turn the motor over by hand with the kicker and make sure it spins with resistance. if it doesnt spin then the plasic gear is stripped out inside.