Yeah the 550 is close. I got it to fire up a couple times after doing the oil, timing, points, plugs and new gas treatment. I think the carbs just need to be rebuilt and synced. Other than that, the wiring is a mess but it shouldn't take much. The annoying thing with that one is i'll have to go the bonded title route, never done it before, will have to look into how to do it all.
The carbs for the 400 were totally shot, took the float bowls off and they were hard packed with white powder and the float bowl pin holders were snapped off. Going to just salvage the usable parts for future use and grab some another set through ebay or something.
You coming down for the eastside classic or whatever is going on next weekend Stev-o?