I took the boat for a ride Friday. After 3 hours of cruising with a nice rpm reading of 5000 the motor start making like a muffle noise and quit runing. I will start engine and my brother will keep pumping the fuel bulb for about 100 feet and them the motor quit runing. I suspect that maybe was the fuel pump, so I got a fuel pump kit and replace all the gaskets, springs, etc. Well I decided to check spark plugs, too. I found one of the bottom spark plugs have a small part of metal inside. Well the boat still not runing.<br />any comments will be greatly appreciated.<br />Thanks<br />RiverMan 