Maintenance of Yamaha

[Nick1945]

I have an '07 121", and they DON"T have plastic pieces on the rear arm,so I use Ulmers shock rub kit, and it works. They last about 4000 miles or so, then the little bearings are toast, and I get a new one for the start of the new season.

136 has the plastic wear plates, and the 121 must not, because Ulmer says his little rub bearings only fit the 121, not the 136

Yep, and that's why I use them, because they work