Maybe it was going back to square one on the tuning; maybe it was the "threat" of putting the 72 back in. Whatever it was, I got the 82 to idle reliably at just over 2,000rpm today. Mostly this was due to repeatedly turning the idle set screw inwards. It was at least four full turns. (Recall that the tuning instructions suggests starting with the screw flush and then adjusting it inward in 1/8 turn increments so that would be 32 adjustments!!!) Also it was clear that my test stand throttle linkage wasn't rigid enough because when I held the throttle arm in place it idled nicely.

The top end is still only 9,400. Of course I set that first, and that's the highest it would go before starting to lose rpms.

Once again, I was unable to fly because of wind. No one flew. I think I'm just going to have to write off the rest of March and probably much of April as well.