(23-04-21, 06:34 AM)Falcon 269 link Wrote: Set at 3 turns out to richen the mixture at idle and just off idle.
Turning the air bleed screw out will lean a mixture off, not richen it. Unlike and not to be confused with a mixture screw, which is the opposite out to richen i.e. more fuel. The pilot air circuit, has no effect on fueling above 1/4 throttle (3000 rpm) as fueling is switched over the the main circuit.

Later