I think I may have gotten the overheating problem fixed tonight. I took the sides of the fairing off so I could get to the cooling fan and when I jumped it with a battery, it spun just like it should. The next thing to look at was the thermostatic switch and when I got in there, this is what I saw:
The wires had come apart right at the connector. Fortunately, I’ve got an extra wiring harness, so I went ahead and snipped off the connector. As it turns out, this was one of those thing that seems doomed to fail — the way it was crammed into the other bike, the wires were starting to abrade as well, so I used some tape and heat shrink tubing to shore that up. I get it all reconnected like so:
Tomorrow, I’ll take it out and get it good and hot and see if the fan comes on.