O-ring identification

[rhammett01]

Hi all,

I've been a member of this site for as long as I can remember but don't think I've said hello. I've had a '81 XS650 in boxes for years that I've finally found time to work on.

I bought Mike's standard XS650 gasket set (Part 18-0202) but I'm having a hard time identifying a few of them. I've labeled them in the attached picture.

Thank you in advance.

 

[gggGary]

O-rings?
in no particular order I think some are 5 valve covers, 6 cam ends, 2 rocker shafts.

 

[5twins]

I'm going to guess #1 are for the valve guides. Never replaced unless the guides are removed. #3 would be for the '76 and later acorn cover nut on the cam chain adjuster. #4 I don't have a clue. Don't know of 3 spots that take the same o-ring. Most spots require 1, 2, or 4 o-rings.

 

[rhammett01]

Thank you all. By the process of elimination and your answers, I think I got them all where they needed to go.