New answers tagged muffler
What I did was I cleaned out the muffler with brake cleaner then blew it out with my air compressor (didn't really do much, I didn't see much carbon buildup come out). I put the muffler back on, dumped out the E10 gas that I had in the tank, replaced it with 100% gas, and now it works. Not sure which of these steps ultimately fixed it.
While I can't provide the technical details as to why, I would say your weedeater is performing as expected. With full choke and full throttle, you are flooding it when the muffler is attached. I would expect that you would smell or even see fuel coming out of the exhaust. However, with the muffler removed, the backpressure is so low that the engine can blow ...
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