TOPIC:

OK. Found the A4 wiring diagram. It shows the pressure sender, a level sender and the 27010-1038, "WARNER,OIL LEVEL. So, I think it's a 'language' thing: 27010-1038, " SWITCH,OIL LEVEL" is the pressure sender and there is no 'level' sensor on the ZN1300. Clear as mud.

According to the parts catalog, they all had them

This Kawasaki 27010-1038 SWITCH,OIL LEVEL Not Available fits the following models and components
Kawasaki Motorcycle 1988 Voyager - ZN1300-A6 Oil Pan / Oil Filter
Kawasaki Motorcycle 1987 Voyager - ZN1300-A5 Oil Pan / Oil Filter
Kawasaki Motorcycle 1983 Voyager - ZN1300-A1 Oil Pan / Oil Filter
Kawasaki Motorcycle 1984 Voyager - ZN1300-A2 Oil Pan / Oil Filter
Kawasaki Motorcycle 1986 Voyager - ZN1300-A4 Oil Pan / Oil Filter
Kawasaki Motorcycle 1982 KZ1300-A4 Oil Pan / Oil Filter
Kawasaki Motorcycle 1985 Voyager - ZN1300-A3 Oil Pan / Oil Filter
Kawasaki Motorcycle 1980 KZ1300-B2 OIL PAN/OIL FILTER (E/NO. 010638-)
Kawasaki Motorcycle 1980 KZ1300-A2 OIL PAN/OIL FILTER (E/NO. 016038)
Kawasaki Motorcycle 1981 KZ1300-A3 OIL PAN/OIL FILTER (E/NO. 016038)
Kawasaki Motorcycle 1979 KZ1300-A1 OIL PAN/OIL FILTER (E/NO. 016038)




On the parts drawing for the 85 -A3 it shows a plug 92066-059 in place of the oil pressure switch and the parts catalog states the plug was used on

This Kawasaki 92066-059 PLUG,OIL LINE,1/8X7 Not Available fits the following models and components:
Kawasaki Motorcycle 1979 KZ400-B2 Crankcase
Kawasaki Motorcycle 1978 KZ400-C1 Crankcase
Kawasaki Motorcycle 1978 KZ400-B1 Crankcase
Kawasaki Motorcycle 1982 KZ440-G1 Crankcase
Kawasaki Motorcycle 1987 Voyager - ZN1300-A5 Crankcase
Kawasaki Motorcycle 1985 Voyager - ZN1300-A3 Crankcase
Kawasaki Motorcycle 1988 Voyager - ZN1300-A6 Crankcase
Kawasaki Motorcycle 1983 Voyager - ZN1300-A1 Crankcase
Kawasaki Motorcycle 1986 Voyager - ZN1300-A4 Crankcase
Kawasaki Motorcycle 1984 Voyager - ZN1300-A2 Crankcase

And finally the oil pressure switch "according to the parts catalog"

This Kawasaki 16144-006 SWITCH ASSY,OIL PRESSURE Not Available fits the following models and components:
Kawasaki Motorcycle 1979 KZ1300-A1 Crankcase
Kawasaki Motorcycle 1980 KZ1300-A2 Crankcase
Kawasaki Motorcycle 1980 KZ1300-B2 Crankcase
Kawasaki Motorcycle 1981 KZ1300-A3 Crankcase
Kawasaki Motorcycle 1982 KZ1300-A4 Crankcase

Bucko that part "25025" looks like the oil level warning relay that sits under the tailpiece of my ZG, although the pic isn't that clear.
Kawboy that level switch doesn't look like the one I remember in the sump of my ZG, I remember it being a taller, larger affair with the caged float not dissimilar to a carburetter bowl float. The ZG & ZN shared the same engine architecture ...strange

Ok so I found the oil pressure switch, or rather where it should have been. There is a plug in the port. The 27010 part is just a wire. But it's a way for the signal from the oil level switch to exit the case.

See my other post. I found where the pressure switch should be port is blocked off. The 27010 was def not a pressure switch which is why I was confused. Its just a part for the signal to exit the case.

It would seem you are correct. The parts list has a pipe plug blocking off the port and that's it.