This video shows how I adjusted the fuel mixture screw to get my 2U pony running better.
https://youtube.com/watch?v=MHr5E3HQ8BA
yea i seen yours started up really nice and smooth, unfortunately mine does not start and run that smooth. i just need to know the amount of turns to turn the main jet and needle valve.
Start with the high speed adjustment at 1-1/2 turns from closed and the idle speed at 1-3/8 turn from closed.