Hey guys, my bro-in-law just bought a 73 115 hp evinrude. Model 115393m. I've been searching for the right spark plug with no luck. I've learned not to trust what came from the previous owner! Any help appreciated!
The old OMC's seen to run best on Champions. That's pretty much all Bombardier has ever provided to their dealer network. You'll have good luck with them.
