2 weeks ago I bought a 2000 XRr, took it out to a local OHV park last Sunday and had a great time. It's a mostly hill-climb area so we only put about 45mi. on. Before I left that morning, checked the fluids and noticed the oil was a little low. The guy I bought the bike from said the oil was changed around 150mi. ago, I ended up putting the better part of a quart into it witch put the level at the high mark on the dip stick. After the day's riding, got it home, washed it up and was going to start it to make sure no water was in the pipe, checked the oil and it was not registering on the dip stick at all. Added another 8-10 oz. and it's still not showing. The bike ran great all day last Sun. no smoke, not leaking from anywhere, started fine every time. I won a Honda serv. manual on ebay, but have not recieved it yet so I'm kinda fumblin' in the dark. Any ideas where I should start looking ?