Ok, even though I own a 73 164, the service manual does not show the electric part attached with the idle adjustment screw. The 75 164 service manual has a picture of the electric part but does not identify it. On page 2:32, figure 2-72 you will see on top of the idle adjustment screw you will see an electric component that has two wires attached. What part is this and can provide a part number? Thanks.
Steve
Steve