Danny and Bruce I removed the thermostat as I was having over heating issues. I did not see the two bottom bolts on the stat housing till after I removed the fiberglass wall in front of the motor. I replaced the impeller a few days earlier. It was all but destroyed, not sure why when it was replaced 2 seasons earlier but I did not fry the engine. I took the boat out after removing the stat and not replacing it. The boat ran well but heated up to half the gauge approx 175 f and stayed there on WOT. So now I thinking do I have a over heating issue without the stat? hould I leave it out? Is the stat bad or do I have restriction in the cooling system? Guys any ideas.