HI, getting a little desperate for a project, so I succumbed to the lure of ebay. I wonder if I'm missing a screw or av mount of some kind? see pics. Also there's a nipple or two hidden in a crack that go to fuel tank ( I'll show you mine if you show me yours). Part of the purge valve system, but not sire which is which. Any thoughts on this. Would especially like to hear from someone familiar with this saw. Thanks for any help. David