Originally Posted by
axle
he is saying with the screw head flush with the body that it go's in use a set of calipers to measure it, and trun it in or out so it is .045 thousandths from flush. hope this help
High speed needle 0,045 inch IN from flush (= 1,1mm)
Low speed needle 0,045 inch OUT from flush (= 1,1mm)
Idle screw 0,03 inch IN from flush (= 0,76mm)
In my experience this is very close to optimal settings...it needs just minor adjustments from these settings. Most important is idle gap. It should be ~0,7mm. Then just go from there.
Settings also depend on plug. A GRP C5 or 6 plug likes it a bit leaner on top (cold natured plug) then for exapmple an O'donnell 97T (warmer nature).