The bike is running, and looks like it’s gonna be fine.

Sunday I went to where it’s brother was parked in a DUMPSTER, and snagged a lot of spare parts, including the whole electrical harness, the engine, all the electronics, gauges, cables, wheels. Discovered that what was causing it to run erratically was a loose connector, and resolved that, now it starts in seconds and runs out nicely. I’m gonna probably have to buy some tires but otherwise I still have less than $100 invested.