There's a second operation needed after blowing out a paper air filter with compressed air. Soak the filter with 3 ounces of gasoline, then toss a lit match at it. Then go buy a new filter. Compressed air blows holes in paper filter media big enough to pass rocks, marbles, and bowling balls- - - - -might as well not run a filter at all!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!