You are in the ballpark with that needle setting. It is all dependant upon your climate. When an engine is new you are ALWAYS better off to run it a little rich, so continue to find the peak RPM as you have done and then richen it a LITTLE. NOW GO FLY, maintain enough altitude just incase. Since you have had this issue, I would fly like this until you feel it is safe to get down and dirty with it. Take it easy a log some time on that engine. As it breaks in you will need to adjust the needles some more.

Keep in mind I said a LITTLE rich. You do not want to maintain a rich setting for too long as carbon will start to build up in your engine.


Jeff