So, I still have it, and I ride it around the neighborhood. I've learned a lot about the little Bultaco after riding it around a bunch:
- The mirror I had stuffed in the bar end of the throttle was causing the throttle to bind just enough. Once removed, all the revving issues I was having riding around went away, and the throttle is just a joy
- Plug gap is very important. I have fouled 2 plugs so far, and I think it's because the gap is off so much. When I replaced the plug this time, I checked the spec, and set the gap at 0.5 mm. The previous gap was off by at least twice that much. Correct gap has to help my fouling issues.
- I need to fix the horn still. I've just been lazy
Who knows - maybe I'll ride it to work this week.....