OK, not sure what happened here...but everybody get back in your seats and quiet down...
![Cool 8)](https://www.kymcoforum.com/Smileys/default/cool.gif)
...we're just trying to help, here
Are you saying the throttle return spring is the rusty, external one in your pics?? I have not seen that before. The throttle return spring is usually a coiled spring wrapped around the butterfly on the carb..not something external.
It should be attached to the part that rotates when you open the throttle. I can kind of see what should be the return spring in your pics..
See my attached pic with yellow arrow...is that not a spring?
I don't know what the heck that old rusty, screen door closer spring is...