Ever run a bike for several miles with no oil? Well, I have now. I have a 2006 Yamaha WR450F. (I'm posting this in this forum because I'm sure the recommendations are not model specific.) After an oil change I apperently--I guess more like, obviously--did not get the drain plug tight. The bike stalled climbing a hill. It started right up again, so I kept going. A mile or two later, it stalled again climbing a hill. I stopped then because I could tell something was definitely wrong. Checked the oil dip stick--none! Checked the bottom drain plug--gone! After getting a new drain plug and filling it up, I fearfully started it. To my surprise it ran! I took it around the block a couple of times to see if the tranny was trashed and didn't notice any problems. I've since drained the oil, twice to flush out the crap I'm sure I shaved off my internal parts. I haven't dared really run it, tough. Here are some questions I have: 1. What would you all recommend to do at this point? I realize a rebuild of the engine, transmission, or both would probably be best, but I don't have the cash to do so right now. (Feel free to insert editorials about how expensive my stupidity is.) 2. What danger is there in running it to see how it holds up? 3. What specifically should I be monitoring/watching for? at first? later in the bike's life? Thanks.