If you add too much oil you will get it showing up in the filter. But i think when you tip the mower over to clean or sharpen the blade it will drain into the air filter assembly. Remember muffler sid always faces up.
George, June 2007
Usually when you are getting oil back to air cleaner its a internal problem ...mostly rings are worn or a clogged air sytem ...
bg, July 2006
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I can answer this question...
how do i check to find out why oil is getting in the air filter?
