[Bean11]

Found this near one of the valves/valve springs. Looks broken and I cannot seem to locate where it came from precisely. Thanks for the help.

 

[JAYinNY]

Maybe part of a cam shim.

 

[Yendor]

Bean11 - it would help a lot to know what model & year bike you are working on.

But I would agree with a Cam Shaft End Play Shim.
They are about 1" in Diam. and come in thickness of .001 & .002
They take up excess side to side play in the cam shaft.

It is not unusual to find them worn thru.

 

[HerrDeacon]

That would be my guess as well.

 

[Bean11]

Sorry I keep forgetting to add that very pertinent info haha. It's a 1973 cb350. And thank you for the responses, it seems y'all are right about it being a cam shim.

 

[HerrDeacon]

Sorry I keep forgetting to add that very pertinent info haha.

Just stick it in your signature so its always there.

Be sure to ensure that all the pieces are found. Hard to tell in the pictures but it looks like a section of the circle is missing.

 

[Bean11]

It definitely is broken, I'll have to pick a replacement up.