Just bought a used bass boat with an evinrude 150 intruder this past winter. I don't have the history on this engine as far as the previous owner. It is a 1993 ,it appears to run well, I do think it has sat a few years as the last boat tag was from 1998. I want to take a look at the thermostats ,but don't have a clue where to look.Any help is welcome!