Your description sounds normal, gas engines stop when guel is used up, but I presume that you meant after the prime fuel is used up. This sounds like a fuel delivery problem, and most likely within the carb itself, you need to disassemble and clean out all blockages.
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Your description sounds normal, gas engines stop when guel is used up, but I presume that you meant after the prime fuel is used up. This sounds like a fuel delivery problem, and most likely within the carb itself, you need to disassemble and clean out all blockages.