Anytime i ride numerous wheelies or if i ride them for over a mile my air box starts leaking oil. i re-routed my crankcase ventilation hose off the airbox and positioned it higher than the block when the front end is straight up and down but it seems to still be leaking???? i keep my oil level topped off never over fill it. any ideas??? i was pretty sure the oil came form the crankcase ventilation hose but im not sure??? i dont know of anywhere else it could be coming from?? bike runs great! just leaks in a long wheelie.