This is usually caused by a clogged main jet in your carb...which is epidemic with the gasoline today containing ethanol. You'll need to clean/rebuild or replace it. You can get replacement carburators online for ~ $25 sometimes so it's not even worth tearing them open anymore. One tip - take pictures with your phone as you disassemble the linkage so you put everything back in the same holes.
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This is usually caused by a clogged main jet in your carb...which is epidemic with the gasoline today containing ethanol. You'll need to clean/rebuild or replace it. You can get replacement carburators online for ~ $25 sometimes so it's not even worth tearing them open anymore. One tip - take pictures with your phone as you disassemble the linkage so you put everything back in the same holes.