So I open my airbox and see there is a nice film of oil on everything. And the back end of the air box is a bit damp with oil. I raced the bike all last year and never had this issue. I don't overfill my oil so I am kinda puzzled as to why this is happening. I have the pair system in place and have the oil breather tube hooked up to the airbox (hence the oil). I am wondering if there might be something else going on with the motor, causing excess pressure internally and causing the oil to get into the airbox? The oil I am running is Motul double ester 300V.