Somehow the link in my post got inserted wrong. I updated it, so please follow the link once more.
I must have a picture somewhere . If so, I will post it.
I posted the complete pdf file. The 90 carb is no different.
Edit:
I updated the web page with image and drawing link. The drawing shows all needed mods to the ST carb.
Here is the drill about the amount of correction in the translation groove that is needed
1) set idle mixture (fuel nipple pointing to rear carb lug)
2) set high mixture
3) go to exactly half throttle
4) at half throtlle, use the IDLE fuel adjustment to get smooth running. Note the required amount of adjustment
5) The amount of adjustment in step 4) is the amount of the groove correction that is needed for PERFECT carb tune.
6) after grinding the groove, re-adjust idle for best transition