Got it. Thank you. Where did you get the part that screws into the head? it sounds like it has the same OD as the Mikuni carb. That's where my problem was. I randomly found an old NOS aftermarket part on eBay.
Keep in mind our bike has a 650 LS engine. The head inlet has same size OD as the carb outlet so it's a straight fit. In your case you have 2 different sizes.
Dad commented in an email that we'll need to keep an eye on this plumbing coupling to make sure the fuel doesn't break it down. I think I'm going to take one and soak it in fuel for a week to see how it holds up.
Things are moving forward, the fairing is at the painter so we should have some nice body work soon. The bike is a clearly hybrid of the old and the new.
Last year I pryed the fork reflectors off because they didn't go with the theme. Dad recently made some nice plates to fill the void left. I think they look nice. If you look on right side of pic you can see the blue bean can of the wedgetail system.
Starter motor
Here's a view from above showing the light weight starter installed. We're too old to be trying to bump start the bike!
Bodywork is back from the painter, we're very happy with the results. Unfortunately the wrong plexiglass was sent when we bought fairing last year so working with supplier to remedy. Main thing left to do is mount oil cooler. Bike should be ready to start soon.