I have a mid 80s Evinrude 2.5 that runs great till about half throttle than it cuts out and i have to prime it to keep it going. Is it the fuel pump? It starts right up and runs great but i cant really go too fast because it keeps dieing on me. Is it hard to rebuild the fuel pump or should I just put a new one on? I was surprised at how good this moved my 8 foot dighy. The engine sat for almost 8 years and we through it in a garbage can and it started right up, we couldnt belive it. I have no trouble with it exept the fuel problem.<br />Thanks<br />Chris