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Electrical Nightmare 15 Sep 2023 07:31 #889398

  • Cmelton
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1984 KZ1000P,I have been re-grounding each component, trying to isolate the gremlin that turns on and off at will each light on the motorcycle. The lights work one minute and the next time that I turn the ignition key, they don’t. Its maddening. I have spent hours and hours trying to find the offending connection. Has anyone had this issue, and what was the answer?
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Last edit: by Street Fighter LTD.

Electrical Nightmare 15 Sep 2023 08:03 #889404

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Use a wiring diagram and the guide in the below link, start at the consumer that isn't working and move backwards towards the power source until you find the point that you are losing voltage. Be methodical and logical and it will take hours not days to sort these issues (don't be tempted to short-cut the process)

Electrical fault finding guide - KZRider Forum - KZRider, KZ, Z1 & Z Motorcycle Enthusiast's Forum

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Electrical Nightmare 15 Sep 2023 08:15 #889405

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Thank you, I cant open the attachment? I will try it again later.

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Electrical Nightmare 15 Sep 2023 08:19 #889406

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which lights???
all of them?
Does the horn work when the lights go out?
Does the neutral light go out?
Has anything been modified on the bike electrically?
 
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

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Electrical Nightmare 15 Sep 2023 17:38 #889427

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Still unable to download the guide? Could you check it out?

Thanks,

C.W.

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Electrical Nightmare 15 Sep 2023 18:52 #889429

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Wierd.

I just downloaded a copy from Wookie58's link and opened it. 
1980 kz750E1, Delkevic exhaust

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Electrical Nightmare 15 Sep 2023 20:11 #889431

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It’s a retired police unit, so there’s wires everywhere. Neutral and oil stay on most of the time, all other marker, signal and driving lights alternate. I pulled the ignition switch, cleaned the contact points, greased the turn mechanism, soldered a wire back into place, put a new body and earth ground on. Presto, no improvement. 

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Electrical Nightmare 15 Sep 2023 20:38 #889433

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This should be a fun one.
There are probably hidden relays and switches within the harness.

1st step--identify exactly which lights or devices cut out.
You'll have to trace the positive wire of that dead light back through the harness to see where it goes.
That one light may lead to your entire issue..
 
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

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