Just got in the mail from Amazon the 89-2008 GS500 service/repair manual. It is hardcover and includes colored images for basic maintenance procedures. Also, there is a listing with pictures of tools ranging from regular maintenance to shop and pro tools. Nice book!! It's $28.02 on Amazon at Suzuki 89-08 GS500 Haynes manual (http://www.amazon.com/Suzuki-1989-2008-Haynes-Service-Repair/dp/1844258815/ref=sr_1_2?ie=UTF8&s=books&qid=1276827829&sr=8-2)
(http://img716.imageshack.us/img716/8099/bikemanual.jpg)