If you need the choke fully on to keep the motor running, it’s could be the well in the carb bowl is plugged up as everything settles here. The passage from the well for the the low speed circuit has to be clear to and is often missed when cleaning a carb. The matching circuit in the carb body has to be clear to along with the high speed nozzle. Also check the orifices where the tips of the adjusting needles fit in. Any gunky buildup here will cause your symptoms to. A good soaking in parts cleaner followed by blowing out with high pressure air will make it all good again.
Here’s the well and the low speed passage which must be clear.
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