Here is a link to wiring diagrams, plug pin outs, circuit descriptions and locations I did for the Gen1 KLR650. I update/add from time to time so may be worth revisiting. I also cannot guarantee that this Dropbox will remain so if it is useful, it may be worth downloading:
https://www.dropbox.com/sh/uha92pqkxq4eoaw/AABwFh5AIevN4dlJeZUitdjsa?dl=0
https://www.dropbox.com/sh/uha92pqkxq4eoaw/AABwFh5AIevN4dlJeZUitdjsa?dl=0