It's a cheap try. You have to put the Seafoam in your tank and drive around to make sure it is mixed in. Then the generator has to run long enough to run the old gas thru the line from the tank. You might try adjusting the altitude lever as the generator is running and see if that helps. It is about the only adjustment there is. If you can get it running, let it run for a couple of hours and put a load on it when it starts to run more smoothly.
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