On my 415-C, I find that I can't lean my mixture. I pull it all the way out, and maybe a TINY change in engine sound, but oh so tiny. Heck, that is how I used to shut my Cessna 172 down, was to pull the mixture knob all the way out and starve the engine until it quit running. Is my plane unique, or is this another ercoupe thing? Any advice would be appreciated. Oh, I have a completely rebuilt Stromburg carb on my C-85 engine. Thanks, Gary
