Originally Posted by MaxMidnight
Surely 'does it smell a bit rich' would be subjective and, if I may be so bold as to suggest, perhaps not the best way to diagnose an issue?
I never cease to be pleasantly amused by MaxMidnight's frustration with less technical approaches. That said, I had the same problem as you (progressively dropping rpm's once they were lower than 2000, eventually stalling), and I agree with everything he said.
If the problem persists at all after adjusting the AF screws, cleaning the pilot air jets using the shotgun method (followed by a carb sync) worked well for me. My mechanic told me it was voodoo. It was not, and I don't use a mechanic anymore thanks to this forum.