Dave,

I finally got some time to get out flying again... and damn... This engine is still giving me grief! I tried what you said....and still does the exact same thing... I even tried going down to the 12/7 APC tuned to turn at 11200-11300... Same thing happens.. I even reverted back to the base settings that you mentioned in a different post for the idle and regulator screws... and still the same thing happens... It just quits after a minute or so whenever the throtle is below 25%. I'm really getting frustrated since I've yet to get this engine to run reliably.... and it's not like I'm YS challenged... as I've had 3 YS's that were (and 1 still is) as reliable as a swiss clock!!