Service manuals are your best friends. With a manual and a few basic hand tools, you'll be able to repair and replace just about anything on your bike. Yeah, they can be expensive, but they're a lot cheaper than breaking off some crucial piece because you didn't realize that there was one more bolt holding it in place.
A mind is a terrible thing to waste. Educate yourself: If you're serious about motorcycle maintenance, try to find a repair course at your local community college or alternative education center. If one isn't available, there are dozens of books on the market that can teach you the basics.