Here is a pic of what I used to adjust my idle that last 2 to 3 hundred rpms downward. On the left side of the pic you'll see an elliptical shaped flat metal piece. On the right side of that metal piece is a bolt. This adjusts it in almost like a cam fashion. After a month of pulling out my hair, this little bit of info brought me back my sanity. I hope this helps someone else. I wish I could use a pointer or something in here to point exactly to what I'm talking about, but this will have to do.
Scruffboy
