Hello, I test rode a 2000 XR650R today. It had the Pro Circuit T-4 silencer and Honda Power up kit. The bike felt great and I really liked everything about it. However, when I pulled up to the owner, he noticed it was leaking oil. We had a look and it had blown the counter shaft seal I did a bit of research on this forum and have come to the conclusion that this is a problem a few other 2000 owners have experienced. Is this problem common to 2001 and newer bikes too, or just the 2000? Thanks.