To quote Colin Clive, "Look! It's moving. It's alive. It's alive... It's alive, it's moving, it's alive, it's alive, it's alive, it's alive, IT'S ALIVE!" (Frankenstein, 1931)
I fired up my CB400F for the first time since pulling its head and a bunch of other work. Yes, the carbs need to be synched and two of them are dribbling gas, but IT'S ALIVE!
And it started immediately w/o smoke or odd noises.
Bob