Checked several times for burs in the fittings, blocked lines etc... I ended up running it for a while with the exhaust coling bypassed. I got the water running through the head only and it shoots a heavy stream while running-the way it should. It seems as if the exhaust cooling is kind of restrictive. Should i run another water pickup for the exhaust cooling or can i do away with it? Question 2- Is their any way to get rid of cooked fuel on the motor head from priming it, its ugly looking and hard to get rid of.