Well I was able to get it flying long enough for me to solo today. It is still running rich and the low end is pretty much closed. After flying for a couple of minutes it seems to lean out a little though. I cant understand it. Someone mentioned there might be some o rings inside the carb to look at for air leak. Anyone know what they are talking about. Another person mentioned that the prop might not be balanced and is causing air bubbles. Any suggestions for checking balance?