Hi, I have an 05 WR450 and the other day I did the usual maintenance (oil change, oil filter change and spark plug). Everything seemed to go fine but as I was riding the other day I noticed a really small amount of oil draining (not dripping) from the bottom of the oil filter cover. I did wipe it out and thought that it could have been from oil that was not completely cleaned from oil filter cover. I continued riding and nothing happened after wiping it. The next day, I used the bike again and exactly the same happened. Thus, now I have been using the bike for a couple of days and the same problem persists. Furthermore, I have not seen any oil coming out from the bolts that tighten the oil filter cover and as far as I know they are not stripped (I might be wrong as I am a newbie on this, but the bolts still tighten properly). I know that the issue might also be from the o-rings but did not buy a new set of o-rings yet for the oil filter cover. Meanwhile, I would like to know your opinion on this please. What do you suggest? Thank you. Regards.