I thought that you adjusted the throttle stop screws to set your idle speeds? On my '97 Ski-doo Formula 500 carbs - it calls the air bleed screw a "idle adjustment screw". Can someone help me understand the difference and how they work together ? My throttle stop screw is turned out 4 1/2 turns while my idle adjust screws (aka air bleed screws) are turned out 1 1/2 turns. Which way makes the air bleed screw richer - in or out ?