Alex1

My fault, the water is being expelled out through the water vent on the left hand side of the hull. However, it comes out without restriction. The quick couple adaptor is not there. That is why I think part of the problem is that not enough water is going through the manifold. About every 8 hours of runtime, I go through an exhaust hose and when I check it the manifold is very hot. I usually have to wait at least a half hour before reaching into the engine compartment to change the tube.
Any other ideas?? All leads are appreciated and will be followed up on.

Thanks