I took the bike out for an extended ride last night (on a closed course of course…) and even was able to get a high-speed (60mph) run in there. There seems to be some sort of missing/backfiring problem between 0-.25 throttle which got worse toward the end of the ride. At first I thought it was maybe the battery conking out but I checked it right away when I got home and it was 12.25 (which is impressive since it was 11 something when I left…the charging system is working!). It also resembled a lack of fuel, but I think there was plenty in the tank and in the lines as well.
I need to do some reading but it might be that the air screws are too tight, making for a too-rich mixture around the crossover point where the carbs switch from the idle to the main jets (and both are open), so it might be just a matter of adjusting those screws, but you would think it would backfire at idle if that was all there is to it.
In any event the bike went 60 without ejecting any parts, and then it stopped as well. I have to say the handling is awesome (not that I pushed it too hard, but it feels really good at speed). If I can get this one running problem cleared up, and find out what’s up with that back brake…I think she’s done for this phase.