MacCool
Well Known Member
Normally I lean for taxi, but I'm not terribly aggressive about it. The other day however, as I was headed to the runup area, I had some rough running that turned out to be on the right mag. I spent a little time leaning and it did clear.
The engine is an IO-320 D1A with two P-Mags on an RV-9A. The spark plugs are NGK BR9ES. I'm wondering if maybe I should be running a little hotter plug, a BR8ES, or just be more aggressive in leaning for taxi. Thoughts...?
The engine is an IO-320 D1A with two P-Mags on an RV-9A. The spark plugs are NGK BR9ES. I'm wondering if maybe I should be running a little hotter plug, a BR8ES, or just be more aggressive in leaning for taxi. Thoughts...?