RE: DLE 55 Issues
In a way yes, you started with BOTH needles somewhat rich, or maybe 2 turns out.
1. You lean the high needle till you get peak RPM
2. You then set the throttle for around 3,000 RPM and lean the low needle till you get peak RPM (without changing the throttle). You find the peak RPM by going slightly past it, then go back till just on the rich side of peak RPM
3. Peak the high needle again and you're good to go (don't skip this step because adjustments you made to the low needle affect the top end as well)