I don't think that would work. The choke arm must have a spring on it to return it to the open position. If you just cut off the ear on the throttle arm, the spring would prevent the choke from staying closed when you needed it in that position.

So you might say just unhook the choke spring. Well, that might not work either. The chokes we are used to have a detent that holds them in either the fully open or closed position. If that model carb does not have those detents the choke would easily bounce out of the closed or open position just due to engine vibration.

I had one of those choke lock carbs on a Mintor 22. It did work but was a pain in the ass compared to what we usually have on most engines.

Mike