Acotrel:
Since my commuter "hack" 650SS was a company-owned model may be why it was configured to whatever the last thing they were trying out. It had a single speedometer, no tach and twin carbs. I may have been unwittingly responsible for its death!
I had given my notice to quit, having landed a job with Boeing. DW and I were closing down the house ready for sale and she was moving to her folks' place in Leyland. I'd arranged to have the 650SS to take her home, only to find, when I went to gas up for the trip, someone had removed the oil tank.
A panic search didn't find it, but did reveal an older design tank, maybe off an early 50's bike. I installed it and filled it for the trip north. It leaked quite a bit, destroyed my wife's shoe on that side. She said she didn't know why her foot was warm! Before heading back to Wolverhampton, I took the tank off and cleaned it, fixed a small crack with my soldering iron. Next morning, I headed out, back to Wolverhampton for my farewells.
Cruising down the M6 at about 85 mph, approaching a service area, the engine started to tighten up. I switched quickly to the curb lane, pulled the clutch and shifted to neutral. As I coasted into the parking lot, the engine stopped.
I called the office and explained what had happened, and Peter Inchley dispatched the M-X support van to pick up me and the 650. We wheeled the bike into the shop, then I picked up my retirement stuff and got a taxi to the railway station. I stopped by Marston Road on my first Boeing trip to the UK a couple of months later and the bike was still there, untouched. There was also a P-11 that we'd tested for Berliner for a pending lawsuit. It had been slightly damaged in shop work. N-V was in its death throes and I don't know what happened to those bikes. I doubt they were ever fixed and were probably included in the close-of-factory disposal sale.