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Hi, my name is Kerry
Replace the cap and rotor if it hasn't just been done.
If you have a point ignition, do a complete ignition tune-up.
Bear in mind that it takes about 10 minutes for the choke to open, if that's when it stalls (exactly when the choke opens) it's possible that your carb is not adjusted right.
Was the carb replacement an attempt to fix this problem?