RE: the official kyosho haf 8 electric and 09 mini inferno thread .
My manual said between 3 ½ to 4 turns out. I have break in MANY engines and about 90% them have to be leaned out a little to keep running. Factory setting are not set in stone as weather, humidity, and altitude have an affect on this setting. I started break in on my 09 at 3 ½ to 3 ¾ turns out.