Hi Andy and the rest of the enthusiasts, I have a Fuel Pump update; they are necessary. I gave the bike an aggressive ride, and it starved for gas. At first, I thought I forgot to turn the gas on - I hadn't. I popped off the side cover and tested the fuel flow - slow but steady. After sitting there about 5 minutes giving the carbs time to fill, it again started right up, and starved for gas again just as I pulled up to the house.

So I went in the hunt for a compatible pump since an NOS was not to be found (the only OEM NS250R pump I could find was used). I ended up buying a nearly identical aftermarket pump - this one:
https://www.ebay.com/itm/305362488548

It is virtually identical to the original except the pressure side spigot was straight instead of a 90 degree bend - even the plugin was the same. It took some doing because of where the pump was squeezed in between the rear shock, behind and above the motor, and almost dead center in the middle of the frame under everything - lots of routing clips to keep the lines away from the chain, pipe, and cylinder head.

NS250R's need a fuel Pump.

I sold the bike, and I suspect the new owner 'Jason' will probably join-up and take over for me here. I learned TONS about the bike, and found it to be very well designed and a blast to ride, even if it was only a mile! The new owner is a lifetime enthusiast, and was as excited about the NS as I was - I'm glad I had the opportunity to own it and have a true enthusiast / ex-racer buy it!

Thank you Andy for the help and acquiring the Parts Manual; I used it a lot!

Regards,
Warren