I was out riding supermoto on my 07 yz450f yesterday with my dad. We came to a stop light and he pointed out I was rapidly losing oil, so we pulled into a gas station and stopped, where my bike continued to lose oil fast. It wasn't squirting out, but it was a fast leak. The bike didn't overheat, run bad, or lose compression at all, it just started barfing oil everywhere. It seemed to be coming from somewhere around the neutral switch. When i got the bike home I drained the rest of the oil out of it, refilled it and ta da! No leak, at least not at idle or revving. I can't figure it out but I dont want to ride it til I figure out why and where it was leaking. Any ideas?