I’m in Seattle. The shop I bought it from had two. They specialize in importing “classic” foreign vehicles that were never sold here. Mostly kei cars from Japan.
When I did the valve adjustment I asked for parts for some other Honda that was sold in the US. There’s only two diameters of shim so once you find a compatible model you just order parts for that. Same for oil filters and non-exotic parts. Other than that you’re calling Rick Oliver.
My carbs work perfectly and I refuse to ask or answer any further questions on the topic ;)
Thanks for the tip on thevisorshop.com.
If you want to chat more send an email to my username at the domain in my profile.
My NC30 is actually an EFI conversion project running Megasquirt. I got tired of trying to get to the carbs... ;-)