I came upon a 1990 (I was told) Johnson 15hp 2 stroke the other day. The guy said that it had not been started in about a year and a half. I finally started it today and it started right up but there is no water coming out of the pee hole. I had the motor in a tank of water because I could not find my flush fitting. I heard that some motors only release water when the thermostat opens, but I dont know if this is one of those. I am scared to turn it back on, dont want to overheat the motor. I also heard that if I take the thermostat off(if this motor even has one) that I can turn the motor on again and see if there is water comming out then. They said that it will tell me if I have a bad thermostat or a bad water pump. Here is my questions. First, do I even have a thermostat? Second, should there be water comming out all the time? Third, if I have a thermostat, where is it at and what does it look like.