With debugging the wiring and ignition done, attention turns to getting the fuel in. The carburetors on this bike are pretty sophisticated. It costs $135 in gaskets and o-rings to rebuild the entire thing. It takes about 3-9 hours to do the whole thing right. There are a few people who do the rebuilds and will charge you anywhere from $200 to $800. The turn around time is anywhere from 4 weeks to 3 days. That's an option for some people, but anyone who claims to be an engineer should have no problem performing this rocket surgery. So at the least, figure it costs about $150 and at least a whole day of work. This particular set wasn't completely filthy like some I've seen. Now that they are rebuilt, the engine fires right up and idles nicely.
One of the float bowl screws had stripped the threads right out of the body, so I tapped it oversized and cut a new screw for it. Fortunately nothing else needed any machining or otherwise modifying. I could have drilled out the jets by a few thousandths to allow for extra airflow, but that isn't in the plans yet.
I found this micro lathe and have it kind of set up for drilling stuff. Its more of a novelty at the moment because the drive system is kind of scary and I'm not sure if the leather belt drive system is usable. The drive motor sounds like a jet engine spooling up, but fits in the palm of your hand. But it is the smallest useful lathe I've ever seen. For $40 at a garage sale, so beat that.