(Edit by Purple) - as the site seems to be down, here is what I had saved to my laptop. Bear in mind that I have no idea what pertains to what, so make your own mind up. However, if much of the diagram you are looking at matches your bike, the chances are the rest of it will as well ....I made a colored diagram for anyone that wants it. Each color is high-lighted on it's own page.
TW200T/TC (1987)
http://gs750.valorsolo.com/download.php?id=170
TW200EU/EUC (1988-2000)
http://gs750.valorsolo.com/download.php?id=171
TW200EN/ENC (2001-Present)
http://gs750.valorsolo.com/download.php?id=172
I have been doing these by request for a couple years, so if you need one for a different bike, just ask.
You'll find them on post #8 here https://www.tw200forum.com/forum/technical-help/59753-98-2000-wiring-diagram-anyone.html