I was out riding about a week ago and the bike developed an oil leak. I got it home stripped it down, cleaned it and found that the output shaft was leaking oil. I felt the free play in it and spun the shaft and listened to the bearing noise and thought it didn't sound good. Being unsure of how much play is ok with bikes I decided to replace the seal and see how it went. I removed the seal and...the bearing is stuffed off its face...balls missing...bits of metal everywhere.....so its and engine out job. Has anyone else experienced this with a GPX250 before? Its a 91 model only done 13000k's...I've done no mono'ing or anything....so seems real strange to me that this has happened.