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I Have a Kohler Courage 20 on a Cubcadet Mower I Recently had a tuneup done and now the oil switch has been replaced and the mower is burning oil i can see oil bubbleing out of the seam on the muffler. Can the muffler have some excess oil in it cuz the cylinder head and valve area show no sign of oil im stumped... thanks

Yes it can take off the muffler and clean it out with brake parts cleaner and so clean out the muffler port while your at it. Surly the rings are not bad

Thanks ill give it a try and let ya know how it works thanks