Good evening, I have recently purchased from what I can tell is a Johnson Electromatic Super sea horse outboard engine I was told it is a 45hp<br />maybe 1970's I've looked in the appropriate places for the serial#'s with no luck maybe I'm looking in the wrong places please help with location of freeze plug, transom bracket. Also is there any way to match up part #'s with serail or model#'s? Thank you!!!