Originally Posted by
18greens
Does any of that help explain what you saw?
It's a good suggestion, but I'm not that guy that just flicks it back and forth, especially not if it does not do as expected....
Originally Posted by
uncle8
If your mixture was set, for some reason or other, at a leaner than normal setting, applying carb heat will enrichen it so that it may return it to a more normal setting and a higher RPM.
That could be the case actually, I do lean it a bit before taxi, but not very much.
For that to happen, wouldn't I have leaned it way too hard in the first place? The only reason I see to lean it hard during the run up, is if the engine runs rough checking the magnetos, to try and "burn off" residue from the spark plugs.