OK. Thanks for the replies. I'm happy with the explanation that they are from another bike. I don't seem to be missing anything, except for the bracket which goes behind the near side front tank rubber. So I won't worry about them.
I should have given an indication of size. the straight one is about an inch long and the other one has about 1 1/2" between the two recessed holes. Too small for a silencer mount. More like a horn mount. I also had a couple of kickstarts which I think the seller said were off a CJ. So perhaps these are too.
