Howdy. I'm new to dirtbikes so please help a bro out. I just bought a well used 07 Husky TE250, and it's got a small leak from around the countershaft. Safe to suspect the o-ring. But in front of the o-ring is a spacer of some sort that I cannot figure out how to remove so I can replace the o-ring. Anyone out there familiar with these small husky singles? Thanks much!