Help?

[SHodas]

I have an 05 RX1-ER and I took apart my chain case to replace the cog shaft. Put everything back (I thought) and found this part? It's 1" ID and 1.25" OD and about 0.638 inches long. Looks like a collar. Has no seal on it.

 

[yam177]

Its a Spacer for the upper gear bearing You need to to support the jacksaft and the inner race of the bearing

 

[Grimm]

Use the microfiches here to give yourself a better idea on how it's all put back together.
http://www.yamaha-motor.com/sport/parts/home.aspx

 

[SHodas]

Not for the upper gear, that collar is larger in diameter. I tried the microfishes, not helping. the ony place it fits is on the jack shaft after the nut goes on, based pn that diameter, thanks