hi, my wife has a 400 AT, she follows me around on the trails and everything is fine. i have a foreman that is snorkeled and i go through water that is over the seat, the other day we were in a flooded ditch and the water was only up over her feet and the bike died. the drain tube is plugged but it still died. it took me 30 minutes of messing with the choke and everything else to get it to start, but everytime she goes through water that is over her feet it dies. can anyone tell me something i don't know.