TOPIC:

If the electrical harness is original, and other signs suggest things have been not switched over, I'd suspect perhaps a top end overhaul which included a new head and maybe the cylinder block serviced as well. The engine looks hand painted as well. Looking at the paint and other bike's components closely might show what had been done and uncover it's story.

If you wanted to find out if you had a KZ or Z engine with a DFI head on it then the first question I would be asking is "what's the engine serial number?"

If you wanted to find out if you had a KZ or Z engine with a DFI head on it then the first question I would be asking is "what's the engine serial number?"

That I believe was already resolved discussing it elsewhere.

Dont know mate. Oil glass on clutch housing so i think its carb. Its no issue i just like knowing all i can about my bikes.
Thanks as always

Good point. I will check when home.

Check 1984 KAWASAKI VOYAGER 1300 ZN1300A ENGINE TOP END CYLINDER HEAD

This one has the sensor like yours.