KZ700-A1 Wiring Help

I saved a 84 KZ700 a few years back from a friend of a friend that was going to scrap it. It's been bastardized and half hacked together as a bobber and hasn't run in years. The wiring was a mess when I got it and I am looking cut down and minimize and rebuild the harness with only what it needs.

So looking online I can't find anything on the KZ700 I know it's suppose to be very similar to the KZ750 but when it comes to the IC Ignitor nothing is the same. My bike has a single 10 pin plug with 9 of the pins used, everything else I have seen has 8 pins or two four pins.

If anyone has any insight on what diagrams I can use to get this thing figured out please let me know. Thanks in advance to anyone that can help.

Below are some links. There's a KZ700-A1 wiring diagram at the mbsween.bike-night site.
The KZ700 is covered by both pdf manuals. the one at the 750Turbo site is scanned much better.
Your bike is probably most similar to the 83 KZ750-L3 (USA models). the L4 wasn't sold here.

Ignition system. just an fyi, your bike should have a pulsing coil rotor (instead of a timing advancer). other than that, I don't know how much your ignition system differs from the 750s.

basic wiring diagrams. here's a topic by loudhvx in which he provides wiring diagrams for a number of KZs.
bare bones for mattylight

Manual. 750turbo.com --- Index .
1980-84 750-4 & KZ700. 1983-85 ZX750. pdf manual link near the bottom of the list. good pdf scans.

Wiring diagrams. mbsween. bike-night. KZ750L3 . Scroll down & click "The Bible" link.
the site has wiring diagrams & a 750-4 pdf manual that isn't scanned as good as the one on the Turbo site.
Note: not applicable for the KZ700, but some of the wiring diagrams are mislabeled in the links: the 1981 Ltd is an H2, the 82 is an H3, & the 83 is an H4.

Some of the later kz's had an interlock safety input on the igniter. That usually accounts for the extra wire on the igniter. It just needs to be grounded to enable the igniter.

Some bikes have an extra wire related to the tachometer to provide a pulse signal. This extra wire usually taps into one of the coil wires, and is not an extra wire on the igniter, but may be an extra wire in the harness connector.

I'd have to see a diagram to know for sure, and to identify the correct extra wire.

There may be a chance:
Check the last page of mattylight and look for the zn1100. See if that igniter has the same colors.

mbsween. kz bike night --- KZ700-A1 wiring diagram

The KZ700 has an electronic tachometer with a black wire connected to the black wire going to the one of the coils.

The igniter has a black/white wire that goes to a diode. I guess this is the extra wire. The side stand switch is wired thru that diode.

Ok that looks like its going to help out a lot. It looks like the oil pressure switch and the black wire going to the diode is what is different.

Ok one more thing though, that wiring diagram doesn't seem to show the reserve lighting device? Also I had the two turn signal and hazard relays like the 83 kz750-H4 diagram. It looks like the wiring is a combination of those two? It doesn't really matter much to me so long as I can make the ignition system work and I think with those diagrams I can make a harness that will work. I'm going to build a very minimal harness just head light, tail light, ignition and charging system.

I don't have the bike in front of me now, probably won't get back to the shop till Monday.

If you are going minimal, the reserve lighting unit can be easily bypassed.

loudhvx wrote: If you are going minimal, the reserve lighting unit can be easily bypassed.

Yep, Just tie the blue, blue/yellow and blue/orange wires together. I cut the connector off my reserve lighting box spliced those 3 together, cut the rest of the wires down even, wrapped the end with silicone wrap and plugged it back in.

Thanks to the info you guys have dug uo for me I got the bike fired up for the first time in what has probably been 5 or more years. Now I just need to finish cleaning up the wiring/building the new harness, then i can take it all back apart and build a new rear subframe and paint the frame.

Still lots of things to go that will need attention along the way. Going to need rear brakes looks like the pads ran down to nothing ate up the rotor and they broke a caliper bolt. May end up swapping the front end for some shocks and brakes form a newer sports bike.

Does most of the chassis stuff swap over from the KZ750? For like the rear brakes?

The KZ700A is literally a KZ750L3 with a debored engine. It's fully interchangeable.

You can also use parts from the KZ750E, KZ750R1 & KZ750P

Awesome, once it doesn't look like an ugly rats nest of wires and booger welds I will put some pictures.

Going to be having friend Tim Harney from Harney Boy Racing in Brooklyn build the subframe and seat pan for me. So hopefully one day it will be a nice cafe racer lol.

Last thing, I know this is in the wrong section but what decent exhausts for these? The one on it has been broken and booger welded several times and was cut off before the muffler.

Quick, easy, cheap and stainless answer is the mid 90s to mid 2000 ZR7.