When you take off the headlight it is right on top of the throttle bodies and has 4 air screws on top and one adjusting screw on the side,the service manual shows the one on the side as the idle set screw but says nothing about the air screws or what the adjustment is,anyone know? mine will foul plugs at idle and smells very rich. the parts diagram shows this part with the throttle bodies but does not say what it is, it does however show the air screws as replacement parts.
