just changed my oil again at 4500 miles. Bought a few crush washers at my dealer, and what do you know, they are completely the wrong washer, they are f'n useless. Just left the crush washer on there and didn't worry about it. Was just lookin under the bike and noticed the drain plug a little wet with oil. Hasn't dripped anything yet, but i don't want to crank the bolt anymore in fear of stripping it. Could be just left over oil after my change, which was a few hundred miles ago. Do u guys change the washer every time u change the oil. Never changed it on my gsxr 750 and didn't have any problems. If i should change it, anyone got a link?