Starting point adjustment on the side screw model is screw in gently as far as possible and then back off one turn.
OM, That surprises me. If all the way out with the screw is lean, then going in all the way, and backing out one turn would be rich. Is the information about the difference between vertical and horizontal adjustment screws wrong?
Thanks, Larry
Does read a little strange but your coming at it from the open side instead of the usual thinking closed position.