Re: Idle Screw Adjustment
All the idle screw does is hold the slide slighty open for idle, the farther in the higher the slide, the higher the idle. You should not use the adjustment at the top of carby for idle adjustment. As Joe says this is strictly for taking the slack out of the cable. 4-1/2 turns out is just a general starting point each engine will be different.
"No such thing as a stupid question, just a stupid answer"
48cc Grubee Starfire Round Head......