I just bought a boat and I would like to know what year and some other answers. The Model number is 225587151. It seemed like it was running hot when i put in the garbage can. I just had the lower unit off and the impeller looked good and all the passages looked ok. What else is there that I can check before I put it in the water. Is there a T-stat on these? It seemed to run alright and everything looks good exept it seemed a little hot for the little time i was running it. Maybe I was just paranoid of it. <br />Thanks<br />Chris