Controlling engine speed manually?

Hey, I had an issue with the throttle controller on my zx35u hitachi. To make a long story short, it broke and I'm still figuring out how to fix it.

It happened about 20 hours ago, and since then I have disconnected the throttle control cable (electronically controlled) and used a cable-tie to position the throttle lever where I need it to be.

Typically, there's an electric motor which pulls the throttle cable (connected to spring loaded throttle lever) and that is how the engine speed is...

Controlling engine speed manually?

Controlling engine speed manually?