Most of us have been there. So, at this point, is the feed dog still located all the way right in the needle plate? If so, have you decided it won't move to the center?
I think I'd be scouring the net for pictures of that same machine that show the feed dog. It just seems like it should ride closer to center.
Well, @CowboyBob should be able to tell us if the feed dog riding all the way right in the needle plate is normal. The picture in this post;