I recently bought a '82 Yamaha QT50 and I have a slight problem. The moped was taken apart to ship and when I put it back together I noticed that the handle bars don't lock into place or anything. There is a long bolt that goes down the center of the steering column and it is supposed to screw into something inside the column. Mine doesn't have that...so as such my handle bars are all woobly and not stable. Any idea as to how I could go about stablizing my handle bars?