Can't believe it, the problem was the short yellow/green double female that connects the start switch to the clutch switch in the plastic wrap under the seat.
I'm a master mechanic but have almost no electrical experience on bikes. All mine were built like a Seiko watch; except.
They cut the outside rubber seal on the distributor bearing when they sat the head on my Yamaha 360 6 speed at the factory. So it had a slooow leak out the dist cover. This VS800 has always had the bad habit of the clutch fluid turning to pond scum. Rebuilt the master cylinder and that slowed it down. But I still have to replace it once a year.