I was given an older Johnson 2HP outboard that looks relatively new and in good shape....if I can get it to run.<br /><br />First question is how can I find out the year this was made.<br /><br />Model number 2R79A<br />Serial Number E5029395<br /><br />Second: I went through and checked all gaskets and they look good except the head gasket. I tried to remake it with some gasket material and it fired right up for a few seconds and then quit. It didn't hold up and blew another hole in the gasket. It wasn't in the same place so I don't think the head is warped. It seems to blow out at the holes that let water pass through. Do I need special gasket material if I am going to make it myself or should I just purchase a gasket for it? Thanks for the help