TOPIC:

If they are factory coils. One will have a green and a yellow/ red. The other will have black and y/r. The black goes to black from the contact points plate. Same with green I showed you a picture of the two wire harness that goes inside the engine at the counter sprocket, winds it’s way around the starter to the points. Green is cylinders 2&3. Black is 1&4.

wrote:

The three wire connector near the coils is part of the brake light warning system that appeared in 1974, warning light in tachometer, 28019-001


 

Wow, thanks. So the Z1 didn’t have the brake light warning relay?

Wiring a Z1 is sort of intuitive.  Lay the main harness out on the frame  The plugs will only fit one other plug.  The free wires on the harness will be near whatever they are supposed to hook into.

There should be a blue wire coming out of each of your handlebar controls.  They should hook together.

Wow, thanks. So the Z1 didn’t have the brake light warning relay?

The warning light and relay was added in 74, you can use a 74 harness on a 73 without the relay.
 

Slowly working my way through this.  I've got most of the connections in the headlight bucket and the tail section. Called Z1 Parts and they're sending me out a pair of single wire turn signals.  Been using my KZ900 a lot to get an idea for the harness routing. I apologize for the poor pics. The poor light must have slowed the shutter speed way down on my phone. In pic 1, Not sure of the brown and pinkish orange females coming from the new harness...  has to be turn signal flasher.  Then pic two...  This is the PO's hookup of the regulator rectifier.  The 3 yellows from the alternator are going to the 3 yellows from the regulator rectifier.  Brown from the alternator is taped off.  Red from the regulator rectifier is unattached ... which I'm thinking goes to the battery?  What about the brown from the alternator that's taped off?  Then there's the 3 wire right above and to the right of the 3 yellow connection from the RR, a black yellow, blue and brown that are coming off the new harness. Still trying to figure them out.  Pic 3 shows the coil hookup.  Have the yellow/red going to the colored on the coils.. they're pink now, assuming they used to be red?  Then the green and black from the ignition module are going to the black on each coil.  There's a red female coming off the ignition with the green and black that's got me guessing also.  I'd appreciate any of your thoughts on what's been done and any of the mystery wires... and thanks for all your advice to date.
 

The two wires with spade connectors are for the flasher relay which hangs on right side of tool tray.
Original alternator wires are yellow, pink, blue.
 

There's 3 yellows coming off the alternator which he has connected to 3 yellows on the RR. What's confusing is there's a brown and purple in that bundle coming off the alt and they're taped off going no where.  I guess I need to open up the alt again to see what's on that side.

One goes to your oil pressure bypass and the other goes to the neutral switch down by the front sprocket.  I can't remember for sure which is which but I think the purple goes to the neutral switch.

Brown is voltage sensing used on the old, separate regulator.  Not needed on modern combined reg/rec units.
Oil pressure sw. is blue, transitioning to blue/red tracer on the other side of the 5 pin connector.
Hard to tell from the diagram color key, but the neutral sw. is probably red/blue tracer.
Not seeing purple anywhere on the wiring diagram.  Is there a purple that is coming directly out of the alt. bundle, or in the main harness?  Better pic?

Good Ridiun'
slmjim & Z1BEBE

The PO has the alternator wired directly to the RR instead of going through the panel with the blue and green connectors. Does anyone see any advantage or disadvantage to doing it this way?

White connector is rectifier, Green connector is voltage regulator.
My guess is your parts are not z1 and came from another bike so no connector.