I have a friend that has a 40 HP Evinrude motor that quit pumping water yesterday. In fact he called me and I had to go out and tow him in to the dock. I was wondering if anyone could help him out in getting his water pump flushed out. He seems to think that the motor sucked a bunch of crap into the water pump,which made it quit pumping water. Any help on this problem would be greatly appreciated. The river is very high right now,and there is a lot of crap in the water.