Speaking of leaning, I'm at 00V, elevation 6874.  I wasn't sure what to do to "set up" my IO550N when all the specs are for sea level.  My plane won't idle at full rich.  I start with the mixture pulled out about an inch, and lean another inch after engine start.

 

During my 25 hours, I never landed at a field below 6000 feet.  I think I ended up tweaking up the idle speed a little.  I didn't want it to die on final, or on the runway.  All was well until my first real cross country to SNF last year.  I landed at Wiley Post, 1200 elevation and the engine was idling really high!  Fortunately I had plenty of runway for my "power on" landing.

 

I pulled the cowl and adjusted the idle back down, but I was really nervous for my return to the high country.  I left the mixture out about 1 1/2" for landing and it ran just fine.

 

All that said, is there any way to properly set up my engine here at my field?

 

Mike Easley

Colorado Springs