Can anyone tell me how I can make my Ozark run a little richer, I have never taken a carb apart but I am very mechanically inclined. From what I understand there has to be a adjustment screw somewhere but unless its inside the carb it don't have one. I don't want to rejet unless its my last alternative, but if I have to can anyone tell me if I need to go up one size or down one size and can anyone tell me where the jet is, and what size jet the Ozark has in it from the factory.

Also a mechanic said I could probably run a slightly colder plug and every thing would be fine, whats your thoughts on this.