I'm having a problem removing the handlebars.
See attached picture.. http://images.yuku.com/image/jpeg/0b92593b7750f9a0601b83c5a2157e4449325cd.peg
Red arrow - nut doesn't tighten or loosen I can turn it and it's just spinning leaving a gap Blue arrow.
Yellow arrow - Not able to remove handlebars.
I had the handle bar out and recently put them back in and now they seem stuck in the head tube. Any advice helpful.
Thanks in advance.

