I'm concerned it seems like my XR-L is using/loosing oil. I can go from 3/4 the way up the dip stick to not even showing after 200 miles on the road. Bike is in Supermoto trim, stock engine (16,000 mi), rejetted with filter & pipe. Inside of the airbox isn't oily so I don't seem to be pumping it out, it doesn't smoke, and I can't find a leak. I check the oil by warming it up, turning it off waiting 30s to 1minute and the check. What's up am I crazy or what?