What should I do if the carburetor throttle cannot be removed?

The carburetor throttle won't open. Let's do this:

1. Preparation tool: a small wrench. 10, a large Phillips screwdriver, a T30 internal wrench and a bottle of carburetor cleaner.

2. Remove the throttle inlet elbow.

3. Unplug the throttle harness plug.

4. Remove the throttle body.