I believed to have water in my fuel from a friend borrowing my boat. Anyway check engine light came on after running 1 or 2 minutes. I shut it down immediatly and took it home. I have drained the tank replaced the filter and it will not idle smooth or operate at more than 2500 or so. Should I remove the resivoir and pump to drain or would do you think I am looking at a bad fuel pump? The water was only in the system for 2 days and I did not run it. I think the pump may be bad, it sounds bad but runs. Thoughts