More than likely your pilot jet is plugged again. One of the most common things people do is clean or rebuild their carb but don't clean or flush the fuel tank which is the source of the problems. Take your tank off and flush / wash it. I use a hose with a sprayer and flush it a bunch of times. Then take fresh gas and pour a half gallon in and swish it around. Empty the gas and let it dry out. Then change the fuel line and add a fuel filter. Clean the pilot jet again and you can at least eliminate the fuel system from the cause of the bad idle.
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