I have a 2006 25 HP yamaha 2 stroke with less than 10 hours on it. I went duck hunting with it and got in some mucky mud and shut the motor off. When i got the boat out of that stuff and restarted it, there was no water coming out of the pee hole. Where do I start to repair this. Is it possible that the pee hole is plugged? Or is it possible that the water pump is shot or even mud stopping up the cooling water in the head? Thanks.