Hey guys, I'm putting the front cylinder head back on my bike after having a shop do some valve work. I put the head in a box when I took it to the shop, and now, pulling it out of the box, I've found an o-ring gasket that looks familiar, but damned if I can remember, or figure out, where it goes. I've looked at the manual, and at the micro fiche on Ron Ayers ... but I can't see where it goes.

Is there an o-ring between the head and the block? (I don't think so.) Is there an o-ring between the head and the valve cover?

The gasket is about a 1/2", outer diameter.

Thanks for the help.