Part of being a GL1200 owner is looking for the information that I need. That is part of the reason I created this site. Here are some links and info that can help.
www.ngwclub.com – They have tons of info and pictures, it is a great online community for Goldwing enthusiasts.
GoldwingDocs – Another amazing site with tons of info, blogs and my personal favorate for GL1200 repair guilds: GoldwingDocs GL1200 How-To Articles
Saber Cycle – GL1200 Parts