when seat goes under water, engine sputters and dies. there will be water in the carb which i drain out. there will also be a small amount (one or two drain tubes full) in the breather box. the water in the box will have gas in it. i have a snorkle which i do not believe it leaks and have siliconed every possible hose/tube connecting to the carb/breather. I am hitting a wall on what it could be. any suggestions would be greatly appreciated