Not really a question, but more of a informational tid-bit. While working on my wife's xs400 (81) I inadvertently disposed of the stock airfilters since the paper was all but there. Little did I know how valuable those metal frames were. Doh! Anyway, I picked up some cheapo Emgo pods and it ran like ballsack. After doing some reading I put 142.5 mains and 50 pilots in and it runs like a raped ape. Just putting this out there to maybe help someone out who is mucked for getting air filters.