I took out my fishing boat for a little ride the other day. After about 15 minutes it stopped suddenly. I made attempts to restart it, but the ignition would not turn it over and the flywheel will would not move when I tried to start it manually (the model I have has a pull start as well). <br /><br />The engine is 25hp Merc outboard. It is less than a year old. The only thing I can think of is that the fuel/oil mixture I was using is almost 2 months old. The propeller is also a little chewed up, but I doubt that would be the cause. <br /><br />A friend of mine told me my model contains a fuse, but, even if the fuse was blown, I doubt that would jam the flywheel. <br /><br />Any thoughts? Besides lack of oil, which was not the cause, what else could have caused this? Overheating? (not likely in 15minutes of use) Am I correct in guessing that the engine is seized? If so, should my warranty cover this?<br /><br />I am rookie at this. . . . I apologize if the answers to my questions are obvious.