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TOPIC: Just picked up a 1980 KZ750h LTD and I have some questions

Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 03:49 #803388

  • rickycodie
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Hey all, i've been crusing the forums and this seems like a really helpful place! I would like to know if you all have a barebones wiring diagram made up and if someone could point me in the direction of a good points replacement that would be awesome. oh and here is the resto so far..

photos.app.goo.gl/S1YnbMShU5GKJ2f39

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Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 04:11 #803389

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For a bare bones wiring diagram look here.

www.kzrider.com/forum/4-electrical/17274...bones-for-mattylight
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Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 05:34 #803391

  • martin_csr
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Howdy. Unrelated to the wiring. Next time for painting the side covers, you can remove the emblems before painting by scoring or cutting the metal lock nuts with a dremel, then pry them with a painter's tool or putty knife. mine crumbled >> the metal was old & brittle. New oem-style lock nuts are available, but I used a different type that thread on & applied a small dollop of rtv as a just in case. credit to skyman.


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Last edit: by martin_csr.

Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 06:56 #803399

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Scirocco wrote: For a bare bones wiring diagram look here.

www.kzrider.com/forum/4-electrical/17274...bones-for-mattylight


Everytime I try that link it comes up broken. I'm signed in, and I've used chrome and Firefox.
Any other links?

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Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 07:03 #803401

  • SWest
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Works for me.
Steve
Z1b1000 1975 Z1b
Opinions expressed by me do not reflect those of the the staff or members
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 08:45 #803403

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Here's another link to the same topic scirocco linked. Simplified wiring diagrams by loudhvx >> Pg 11 (see pages 11-21).
If it doesn't work, search KZR for bare bones for mattylight.
some of the diagrams are no longer there (pgs. 1-10). But from pg. 11-on many are still available.

There's an 82 KZ750-H3 wiring diagram on pg 15 & an 81 KZ650-H1 CSR on pg 14. I did not look thru any more pages.
The 650-CSR is very similar to the 750H Ltd and has the same ignition system & charging system as the LTD.

Also, there's a good pdf service manual available for the 750-4 chain drive & the mbsween KZ750L3 page has stock wiring diagrams.
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Last edit: by martin_csr.

Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 14:00 #803423

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That earlier link works, but the first page diagrams have been lost. Most, but not all, of the later diagrams have been restored.

I think the 1980 Kz750 Ltd might have already come with electronic ignition. At least this diagram I drew in 2013 shows it that way.
Page 16 of Mattylight.
www.kzrider.com/forum/4-electrical/17274...ght?start=300#590852
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Last edit: by loudhvx.

Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 19:12 #803431

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thanks for your help, one last question, should i use 20 or 16 gauge wire for this? i don't want to cut up my harness if i don't have to.

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Just picked up a 1980 KZ750h LTD and I have some questions 06 May 2019 22:57 #803432

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16 for most things including the ignition. Maybe 18 for lighting other than the headlight.

14 for the red/white and black/yellow of the regulator rectifier.

Much heavier, obviously for the starter circuit.
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Just picked up a 1980 KZ750h LTD and I have some questions 07 May 2019 07:01 #803444

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By rickycodie: thanks for your help, one last question, should i use 20 or 16 gauge wire for this? i don't want to cut up my harness if i don't have to.

Just an FYI. Z1Enterprises.com has colored wire. I would try to keep the wire colors as close to stock as possible. The hardware stores around here don't have a very good selection for matching the stock wire harness. I've never tried an electrical supply, so I'm not sure what else is available out there.
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Just picked up a 1980 KZ750h LTD and I have some questions 12 May 2019 08:33 #803715

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loudhvx wrote: Much heavier, obviously for the starter circuit.


Is 7-Gauge OK for this? Seems to be the largest gauge they sell in Germany.
1980 KZ750H
2012 Honda Hornet
1993 Mini Cooper :)
Current Project: kzrider.com/forum/11-projects/612054-kz750h-restoration

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Just picked up a 1980 KZ750h LTD and I have some questions 12 May 2019 09:55 #803721

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I'm not sure European gauge wire is the same size as in the U.S.. Maybe it is, I just don 't have any experience with it.

For the starter cable and ground cable, to the battery, you will want the conductor to have about 6 or 7 mm cross section. Also, home wiring or industrial wiring tends to be very stiff, even for stranded conductor. If you can get finely stranded automotive wire that thick, it would be much nicer to work with.
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