Re: New engine worries ( 1st build)
Ciro, that's true, but a rich oil/fuel can actually affect the air/fuel mixture and make it lean.
Also, switching to 40:1 instead of 32:1 will help with fouling, but it may not be addressing the issues. A properly burning mixture should burn/clean the plug even at 32:1. I would've suggested possibly switching to a leaner jet and a hotter plug (but that gives a level of risk that a dealer may not want to be responsible for).