Hi all! Today a friend and I put my supermoto wheels on my 2002 drz400-s. My friend took it out for a spin, did a few wheelies and stoppies, and when he brought it back it was leaking oil. I couldn't see where it was coming from but it stopped after a few minutes. I washed the bike and took it around the block a few times --- no oil leaking. I checked the oil - pleanty in the bike. He lives about a mile from my dorms. On the way to the dorms I rode conservatively, and it's leaking oil again. the bike is a 2002 model, only 1300 miles on it. Anyone have ideas or places I should look?