Finally on the water after 5 months. The Ulterra installed and working. The engine is not overheating now.

WOT issue (or on plane): The engine jumps on occasion. It is like I hit something in the water on occasion. The engine just jerks some. This is just on occasion. The engine is running with the cavitation plate just at water level.

The engine printout shows no faults.

Any help would be appreciated. It is a 2011 30hp Merc 4 stroker.