1981 KZ440 LTD original wiring from stator question

Hello guys, 
just picked up a kz440 ltd from a guy who had no information/ clue what was going on with it so it currently doesn’t run. Now I’m looking to breathe new life into it.

So, my plan is strip the wiring harness off and go as minimal as possible. I looked through the bare bones thread and found one for my year and model that I think will  work for my needs. However, I have a question about the wires coming from behind the pulley cover on the left side.

The wires in question ties into the main harness and has two yellows, one black, and one green. I assume the two yellows go to the rectifier, and black being ground, but what is the green and where would I bring that wire ?
As I said, I’m looking to have as little as possible on this bike as far as wiring so any help would definitely be appreciated, thanks!

The green goes to the voltage regulator and controls the field coil

Thanks for the reply, I assume this wire would then just be grounded to the frame on this bike then? I don’t see any green wire on the diagrams relating to it..

Wookie58 wrote:

The green goes to the voltage regulator and controls the field coil

Are you sure Wookie!? Only the KZ400 have a field coil, the KZ440 didn´t have a field coil charging system, so the green wire is the neutral switch.

Would need to check the wiring diagram specific to the bike, if it's a permanent magnet system does it still only have two stator outputs? (2 yellow wires) that being the case then I assume the black is the oil pressure switch wire?

Scirocco wrote:

Wookie58 wrote:

The green goes to the voltage regulator and controls the field coil

Are you sure Wookie!? Only the KZ400 have a field coil, the KZ440 didn´t have a field coil charging system, so the green wire is the neutral switch.

I stand corrected (that's what happens when you make assumptions  ) the black is the oil pressure switch wire as previously mentioned

So upon looking at this in the manual, looks like you both were correct. Green being neutral switch, black oil pressure switch. In my scenario, would it be a good idea to install a small indicator light for the neutral switch, and just cap the oil pressure / add another small light?

Bpop2019 wrote:

So upon looking at this in the manual, looks like you both were correct. Green being neutral switch, black oil pressure switch. In my scenario, would it be a good idea to install a small indicator light for the neutral switch, and just cap the oil pressure / add another small light?
 

IMO the bare minimum of diagnostic info you should have is an oil pressure light, and you should not remove it.

I'm very happy to have forgotten all I know about the nightmare wiring on my KZ440 project. I'm just happy that it works.   
Actually, it's not too bad. It's a very simple wiring system, as far as bikes go. The 2 yellow wires go to rectifier, yes.  It's a single-phase alternator/rectifier setup. 

So I got a question regarding the ground for the battery and starter. I’m essentially using the bare bones template that I attached, but am making a few adjustments.
I was planning on running a new ground from the relocated starter relay to the starter, and a new ground from the battery to the frame. From the battery negative, I will be running a ground wire for the lights that will also connect to the starter relay. 
After looking at the bare bones diagram, it shows both the negative from the battery and the starter motor are both grounded at the engine with a shared wire to the frame.
Am I missing something here or overthinking it? I thought the battery was grounded to the Frame from the factory and the starter relay >starter motor>engine with a shared ground from the relay to the battery? 
Any guidance is much appreciated as always 

Bpop2019 wrote:

So I got a question regarding the ground for the battery and starter. I’m essentially using the bare bones template that I attached, but am making a few adjustments.
I was planning on running a new ground from the relocated starter relay to the starter, and a new ground from the battery to the frame. From the battery negative, I will be running a ground wire for the lights that will also connect to the starter relay. 
After looking at the bare bones diagram, it shows both the negative from the battery and the starter motor are both grounded at the engine with a shared wire to the frame.
Am I missing something here or overthinking it? I thought the battery was grounded to the Frame from the factory and the starter relay >starter motor>engine with a shared ground from the relay to the battery? 
Any guidance is much appreciated as always 

I would suggest you start by printing the diagram and mark with a red pen which are "live" and which are "ground" and also establish which are "permanent live" and which are "ignition live" . Then work out what size cables you are going to use.
At the moment you appear confused and are in danger of needing a fire extinguisher 

Well thanks for the concern.
id like to say that maybe I rambled and made it come off as confusing then.

in an attempt to simplify, my question is was the negative battery cable grounded to the chassis from the factory?

there is also larger gauge ground from the starter relay to the starter motor. 

looking at the diagram in the service manual, the red/white from the relay taps into the black/yellow chassis ground wire that is connected to the negative post on the battery. 

I was planning on keeping it exactly like this, only matching the gauge wire in between the relay and starter, and using a longer length to a more hidden location.

hopefully this is less confusing , if not , I’ll take my beatings