I can't find the exact year and hp in the champion catalog. I think these might be the proper plugs L77JC4, but not sure. It's a tiller/pull start (that hasn't started yet).
Andy, The BRP parts diagram shows the pull start models of your motor started life with the Champion QL77J4. <br /><br />I would use the QL77JC4 at .04 unless you are doing mostly high speed, then .03.
