Ok, I bought this motor and the guy said that it ran fine last year. When I got it home I put it in a barrel and it fired right up. So I put it on my boat and took the kids fishing. The motor started on the first pull and ran awesome for about 2 miles and then i shut it off. When we went to move, I couldn't get the motor to continue to run. It would start for about 5 - 10 second of smooth running and then spit and sputter then die. so I had to row all the way back to the dock. I checked all the hoses and connections and figured it was a fuel problem. Still couldnt get it to start. In the morning (put back in the barrel) it fired up on the first pull and sat there and idled perfect for about 5 minutes. I shut it off and again it would not run. I changed the plugs, rebuilt the car and double checked all the hoses. Still wont start.....Please help, I'm out of ideas