ok i started one of mt boats today to pull it out of the water for the winter today after sitting for about a month. it fired right up, ran for about a min then quit. i tried to re-fire it and it would not start. i checked for fuel and there was pleanty getting there. i checked for spark and nothing. any ideas what would just stop working like that. i know it could be anything but if anyone has an idea on what things to check first please let me know.