1) = High speed needle. Turning it in = leaner. Turning it out = richer

Turn the high speed all the way in until it just becomes snug. DO NOT CRANK IT DOWN!!!!!!!!!!!!!! After it's snug, turn it out 2-1/2 turns to start it.

2) = Low speed needle (idle mixture). Same as above. Start it at about 2 turns out.

[link=http://airfieldmodels.com/information_source/model_aircraft_engines/index.htm]Model Aircraft Engines[/link]