I have a 1996 Mariner model#c40elpto serial #06313344 that has a weak tell tale stream. I had the water pump replaced and still the same result. The stream is solid its just doesn't seem to have a lot of pressure.I checked the tube for obstructions and it was clear. Could it be a bad t-stat? Does anyone know if this moter has a t-stat? Does it have a high temp alarm? Any help would be greatly appreciated.