With the help of a friend of mine we managed to get her running, not very well, but that was without the plenum or the stacks on the carbs (which have black rubbery tar in them) and it was without an exhaust. So I'm feeling a little bit better about my mystery purchase, not that I felt bad, but it was nice to hear her wake up.
...and now that I know she works, back to tearing her up:
Had a little more water in her than I thought... this is what happens when an airhead tries his hand for the first time at a waterbike. There are 5 other bikes in my garage and this never would happen to any of them!
with my old Ducati (back in the garage for some paintwork fixing for the new owner)