Go to smokeriders.com they have one.
You can find a free wiring diagram for a 1982 Suzuki GS 550 in the owner's manual. You can sometimes even find them at auto part stores.
I am looking for a wiring diagram for the Intruder 1500 which also shows color codes. In the process I found the following link. It's for the Intruder 1500 and does not show color codes, but hope it's helpful. http://www.yankeecruisah.com/art/int-1500-wire.gif
electronic choke wiring
autozone.com
A stereo wiring diagram for a 1982 Toyota 4WD can be found in the stereo's instruction manual. You can also find stereo diagrams by contacting the manufacturer.
Ebay occasionally sells a CD with wiring and vacuum diagrams.
chiltons manual.
Go to www.the12volt.com
You could find in a book at autozone
http://wiki.answers.com/Q/Where_can_you_find_the_wiring_diagram_for_a_1982_ford_e3501982 ford e350
electrical connections from motor to remote controls color code