A model J-2-J. This is want it says in the car guide book that is in the car. No plug name. Any idea what brand or type?

sounds like a Champion Marine plug (a very cold one at that) Ive had plenty of Evinrude/Johnson outboards that call for that series of plug; now they say to just use J-*-C my old v4 was a J4J and most of the others I used to have were either a J6J or J8J.