Your luck is just a tad better than mine. I was given a 15 Force, which is extremely similar, and it probably cost me about a grand to make it work, by the time I was done. (That’s just the parts, from Marine Engine and eBay. I know, shame on me; but I really wanted one.) Anyway, here’s the plug from Marine engine. You might find it someplace else, too.
https://www.marineengine.com/newparts/part_details.php?pnum=MER19-F681226
Long live American manufacturing!
