by 'Works', you mean it closes when cold and eventually opens when warmed up?
You probably understand, that's not good enough - especially in a cold climate.
It may have an internal vacuum actuated pull off. Unless someone here has one apart, you'll have to determine this yourself. What it does is as soon as the engine starts, the choke will open a bit more. The older Holleys from the 60s and 70s have this, as do factory carbs. Newer stuff its maybe yes often no.
