I got a new 50hp e-tec. I run it across the lake and it goes just supper unit it doesn't. 

The motor just boggs down and then it will actually die on me. So I pulled the fuel tank out on the floor and pump the ball until it gets hard...   and then start up the motor and in 30 seconds it will run full throttle again...   across the lake and then it starts to sputter and bog down...  pump the fuel ball again until hard and it will go full throttle again. 

What is going on ?  Do I have a bad primer bulb ?  Could the fuel lines still have air bubbles in the line and maybe that is why the primer bulb is failing ? Shouldn't the motor be pulling fuel thru the line on it's own ?