Mystery sealing washer during Sprocket change (Gen 5)

Hi,

I was doing a chain and sprockets change. To remove the front sprocket cover, I removed two of the clutch slave cylinder bolts, and then the two sprocket cover bolts. The slave cylinder is still attached to the sprocket cover; I've read posts saying that I should ziptie or rubber band the slave cylinder piston to stop it popping out, but I suppose this isn't an issue if you leave it connected to the sprocket cover?

In any case, in cleaning out the gunk that had accumulated on the back of the sprocket cover, I came across a sealing washer. I've got no idea where this goes. I can't seem to find any mention of it in the manual, or in the fiche. Any ideas? Please see pic attached. The seal is a broken circle, not sure if it is supposed to be that way or it just broke at some point.

The only possibility I can think of is that it is part number 24 in the diagram here: https://www.partzilla.com/catalog/honda/motorcycle/2000/vfr800fi-ac-interceptor/left-crankcase-cover.

But seeing as I never removed the clutch slave cylinder from the sprocket...what do I do?

Thanks in advance.

 

Might be the seal for the clutch actuating rod?? That would be item 24.

 

Id agree the sealing ring. Looks like you need a new one if it is.
When i removed my throttle bodies i found a little washer in the V, convinced it had fallen down from somewhere i had many a sleepless nights trying to figure where from. In the end i just put it in my box and forgot about it. You never know what previous owners do

 

I see on VFRD it was suggested it might be an o-ring from the chain..... good possibility also.

 

I measured more carefully, and the OD is about 11 mm, after it split. This suggests that it isn't the clutch rod seal as it is too small. That one ought to be around 18 mm in OD according to the fiche.
As raYzerman said, looks like it is an o-ring from the chain. It is the right size, has grooves like a chain o-ring does, and my old chain is missing o-rings everywhere.
Thanks for the suggestions and input! For now I'm just going to swap the chain as planned and ignore it...here's hoping my next post isn't about the clutch not holding pressure

 

Glad youve sorted it and its always nice to have closure on a thread, thanks