Drained some of the oil, wasn't milky or weird smelling and tried setting setting it on fire but didn't light so pretty sure there's no gas in there. Rebuilt the carbs, jammed them back in the bike and hooked up Rhonda's tank as a stand-in. Don't mind the enormous fairing up front, slung that on for shits and giggles...
https://youtu.be/-EHuxVzExoc
Getting a non-runner to start for the first time is a feeling like no other. Love it. Took a while to fire, but that's because (I think) of the empty float bowls and vacuum petcock set-up. You may be able to see the can sitting on the frame - that's Honda carb/combustion chamber cleaner and it's good stuff. Much thicker than regular carb cleaner which - for whatever reason - works really well (guess it sticks around longer, burns slower?). Either way, with the airbox not connected to the carbs and a good 5-10 seconds of that stuff sprayed into the carb body and it's off to the races.
The bike sounds pretty damn good too, no weird rattles, clanks or leaks yet. Did see that one of the spark plug threads is cross-threaded so I guess I'm going to have to pull the head and re-tap it or get a TimeSert in there . Other than that, so far, so good. Will check compression tomorrow, but all four pipes were nice and hot (ie totally burnt myself on all of them) - including the cylinder with the cross-threaded spark plug.
Included in the vid is a close up of the air filter housing. Me and my wife have a jewelry business - if I find a skull in amongst the rats nest in there I'm casting it in bronze and it's going on this bike.
Sweet. So now that I know it runs I'm gonna do the basics on her to the point where she'll pass her safety inspection, then bring her home and get the grinders out. Good people - onwards 8)