This is exactly what my 73 looks like. The red cable is what is not attached or broken at the carburetor (I assume). I guess at this point just tell me where to buy one and I am going to have to find someone to fix it. I am fairly mechanically inclined however I think re-installing this cable is going to be above my pay grade...lol
http://img488.imageshack.us/img488/7837/10010397dw.jpg