I don't understand your reference to a choke connection to the throttle butterfly. Can you explain that please, preferably with a picture? It also looks as if you have the anti-oscillation spring connected to Hole 1, where it is supposed to go to Hole 2. The main link through the middle of the spring should go to Hole 1 and the other end of it should connect at the back of the rack-and-pinion governor control.

Can you post a picture of the back of the governor control please, so we can see the link connections?

The speed control cable should operate the rack on the back of the governor control, and the rack should travel through its full movement when you move the speed control from stop to maximum.