Ok, so I dumped my 2003 WR450 in a creek here in Alaska. I can't seem to find any good information on exactly HOW bad this is for the bike (oil turned milky). Obviously I know this is not good for my ego or the bike, but I would like to know for myself how much damage I actually did by draining the cylinder and exhaust and riding out (we were 10 or so miles back). From what I can find on the oil manufacturer's websites, it isn't the water that ruins the engine per se (the water is supposed to evaporate off for the most part), but rather the rust that can be caused by water. I'll be changing the oil immediately, but does anyone know really how bad this is for the bike. I have anecdotal information from people that this kind of thing happens all the time. I just want to be informed.