Hand throttle / choke not connected

[DinoinATL]

My 1967 spider has the two pull knobs to the left of the steering wheel and neither seem to be connected to the engine. This is a picture of a broken wire coming out of the firewall in the engine bay (near the throttle cable) and I suspect it’s for the hand throttle. Does anyone have a picture of where this connects to the engine when properly connected?
The wire is broken just to the right of that screw / nut.

[Fanalone]

Hi

If you download the parts catalog PART 2, that Ribolla_67 just shared in the library section.
You will find the requested information in chapter A2.21 (page 53 - 66)
Ribolla_67 info:
http://www.fiatdinoforum.org/viewtopic.php?t=1874
Library section (login section):
http://www.fiatdinoforum.org/viewtopic.php?t=1873

BR
Erik

[DinoinATL]

I figured it out, the hand throttle knob is not getting enough pull on the cable. In the picture, I think the screw/nut needs to be closer to the linkage to get it to move better or it needs wd-40 / some grease.