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I removed my crank case breather tube and replaced it w/ a k&n filter, now it makes a strange moaning noise when i shut it off is that normal or do i have a bad PCV? Just wondering if Anyone has heard of this? and yes I followed the instructions on Ducati Suite.
 

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Re: Emission removal

Caution with this mod. Depending on how close you connected the breather to the crankcase, keep an eye out for oil being blown out at higher RPMs. If it saturates the filter and blows past it, the oil can drip down on the Vertical exhaust header and ignite. I needed at least 6 inches of hose between the case and breather before it stopped blowing by.

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