Weber fuel return location

[camoit]

There is no return on a Weber. But you want to use an electric fuel pump. I think the PSI should be 3 PSI. do not use the manual pump. It has way to much pressure.
The only vacuum line that hooks up is for the advance. If that yellow one you circled has a spring then yes it's the idle mix screw, but it's hard to see from the picture.

Here is a video on how to adjust the choke if it runs to rich for to long when cold.
https://www.youtube.com/watch?v=gviih8tqKxc