1993 Johnson 200GT....Someone correct me if I am wrong, but through the exhaust relief ports either side of the pee stream there should be water flow through these ports. I have no water flow there and also no water flow going to my water pressure gauge which is T connected between both heads. Can someone please give me some advice as what to look for. I know my water pump is working excellent so that is of no concern. Is there a possible stat issue????