The Chilton manual doesn't indicate it but do you have to take the rear wheel off to remove the gas tank on an '83 GL1100? The manual is specific to '75 - '79.

You deffinately have to remove the rear wheel. I always go to this sight for good images of the brake down of my bikes. http://www.cyclepartsnation.com/pages/parts/viewbybrand/7/Honda.aspx