I have an 11 horse Universal 2 cylinder Model 5411. It is raw water cooled only. I recently got struck by lighting. Since then it has been running hot. I replace the thermostat and cleaned all hoses and replaced the impeller. It is still running hot. When I go to the engine room it doesnt seem that hot. Is it possible my guage is off? Or is there a blockage somehere I cant find. Also the impeller housing cap is a little worn. It seems to be pumping well though. Any ideas? Thanks, Eric Stone