Thanks, very helpful! I wonder what serial number Davis' bike is?
It sure looks like there was some variety on these things, as far as a few of the smaller parts. The seat on the old picture of the bike on it's stand, looks like what mine has. Black all over. The pegs on the two in the brochures I've seen have the light colored pegs like mine, and the brake levers in the one on the blue brochure, and on another one I found pics of on the internet, match the levers on mine. The wheel colors seem to vary, also. Mine appear to be silver, where the paint is still intact on the rear wheel.
I wonder what they had for the kill switch originally, maybe the springy lever next to the spark plug? Mine has the wiring connector next to the tappet cover, but no evidence anywhere of a switch. And no evidence of a springy lever, either, since it would have been painted with the engine, right? Strange.
I took my carb apart, it was dirty, but looks like it will clean up ok. Not much wear. Ordered a kit for it. I also ordered the belt that I think is the right size, we'll see if it fits/works. It's rather confusing....
I removed the engine, and did a little cleaning. Sure is a nice bright red under the engine (and on the underside of that plate, also). The engine mount bolts are black steel, no rust on them, because the leaking oil preserved them perfectly.