I removed the swingarm on my '83 XL600R to do assorted maintenance items and generally clean it up. Had a heck of a time getting the airbox removed. Now, for the life of me, I can't get the dang thing back in. Obviously, the box is wider than the frame rails (I removed it towards the rear with great difficulty). How do I go about reinserting it in the frame? Thought it might squeeze in through the left side, but no. Rear I can't seem to figure out how to make it 'narrow' enough (there are several hard plastic protruberances on the right hand side of the box) to get in, either?? I'm stumped. Too much forcing will break the hard plastic parts!!