Incredibly Fast Rev After Routine Maintenance

I'm obviously confusing some with my lack of knowledge.

Here's a couple of pics to hopefully explain what I'm trying to say (hopefully I uploaded these images correctly). Where I say the "full open" position in the first image, I mean a high idle position. I understand that "full open" would be set much further back.

Am I missing any linkages that anyone can tell?

Thanks for looking.

Jim