Trying to troubleshoot an overheating problem. The sensor checked good. Acivated at 195 degrees. When running on the hose, I'm getting good flow out of the pee hole. Good flow on the small hose that goes to the back exhaust down turn elbow, but very little water is coming out of the big hose at the top of the exhaust. This is the big hose that runs back to the exhaust thru hull fitting. Am I suppose to be getting a steady flow of water at this hose fitting?