I recently posted something about this earlier, and grayracer said that if I moved the bike and oil was still coming out, then it was the seal around the shifter. Well I moved my bike and it dropped some more oil, and after looking at it, it looks like the seal around the shifter is where it is coming from. My friend who has a YZ250 has said that to change out that little rubber seal that you have to split the cases. I dont have the know how to do that, nor do we want to spend $400 to get 1 little seal changed. So, my question is, do you really have to split the cases to change the rubber seal where the shifter goes into the transmission?