With a couple hundred different type and trims it is a guess but I there is two basic throttle setups. The following image is one of them. The other is a simpler setup. Hope the following makes sense.
Item 1012 mounted where the red arrow indicates. May be or not present. If not it would be needed to be added.
Blue line indicates where the return spring (211) would located. May be present or not. If not it would be needed to be added.
Green line indicates the throttle cable path. Cable clamp and screw may not be present. If not they would be needed to be added.
Orange circle indicates the fiction nut that must be loosen for remote throttle cable use.