Thanks! "I love it when a plan comes together!"
So far, so good. No oil or coolant leaks. I've started and run it a few more times over the past few days. I need to dial in the carb. Still running lean. Can't touch the throttle once it starts and is idling or it'll stall. After it warms up, I can rev it... but is definitely lean above idle. Plug reflects that.
I bought a 10pc main jet and 10pc pilot jet set for the PZ30 carb I have. While I await that, I plan to start drilling out the jets I have. Currently I have a #40 pilot... which I feel is close.... but the ~#105-ish main I have is too lean. Annoyingly... my small drill bits go from 1.00mm (#100) to 1.20mm (#120)... so no granularity in between. That's why I finally ordered the full jet set to better dial it in. I may just drill out my main to a #120 and verify that it's too rich as I await the slow-boat with my jets.
I did happen upon the VIN number. Stamped into the leftside frame near the footpegs.
Cheers!