No, your picture did not post successfully, and the HTML text which the picture uploader adds to your post, is not there. Did you see the little uploading box on your screen, after you clicked on "Add file from your PC"? After that box was on the screen for a while, you should have seen a thumbnail copy of your image on the screen. If the thumbnail did not appear, you would most likely have had a small message on the screen saying that the file was the wrong type (it has to be JPG or PNG), or that the file was too large (not more than 2.2 MB, if I recall correctly).
We haven't had a picture posted of a GCV cyinder head without the valve springs in place. However I took another look at an on-line illustrated parts list, and it shows the valve stem oil seal on the inlet valve only - see page B, below:
http://www.ereplacementparts.com/ho...ine-parts-c-37657_37658_37988_37770.html It may be that the exhaust valve's stem runs too hot for a polymer-based stem seal to work.