engine Oil leaking from air box!!

On my 08 wr450f I noticed that the air box was leaking black oil (engine oil). I opened the side door and the bottom was full and it was slowly dripping out the side door. I could see some small spatters on the air filter. Any idea whats going on here. I cleaned it out to stop the leaking.

Probably too much oil in the motor and the crank case breather is spitting oil into the air box. At leasty i think the newer wr's are routed this way.

Yup, just like they said, too much oil. I only know from experience....oops:ride:

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