I recall that there were some questions regarding our AFB carbs. Here is a link that will tell you everything you ever wanted to know, and a lot you never wanted to know!
Details galore. Big file, so download here:
https://www.carburetor-parts.com/assets/manuals/carter-afb-emanual.pdf
I found this looking for an idle discharge circuit diagram since the manual suggested this as a cause for rough idle condition. I had R&R’d my ”new” gas tank the PO installed to fix a leak. Since then, she idles poorly.
New filter and will just remove idle screws and blow them out.
Allan