I hope you XR experts can help me out a bit. A buddy of mine bought a 2006 XR650 a couple of days back and we have now been out twice to ride. We noticed a lot of oil dripping/leaking out of the air filter box out the lid on the side. This leaking didn't seem to stop although the engine oil level remained the same. Where else could the oil come from? Is the transmission oil separate to the engine oil on the Honda's? If so, is there a breather from the transmission leading to the air box? I am puzzled at the source of the oil, as it doesn't seem to stop. Any ideas or checks you guys can recommend?