I recently inherited a Singer 107 w1 and I am trying to get it all set up. Everything seems to be in working order, except when I turned the dial to change the stitch length, it lengthened the stitches to just over 4 per inch and now it won't change at all. The zig zag still works fine and it's not skipping any stitches. I tried the adjustments it says to do in the manual (pictured below) but that didn't do anything. The only thing a did notice was that the tip of the stitch dial rod is slightly bent (pictured below), but I'm not sure if that is major enough to keep it from adjusting at all. Does anyone have any experience with this machine? I can't find any information online other than adjusting those two screws.