KZ750 high beams shut bike off.
- JohnLuke
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KZ750 high beams shut bike off.
06 Jan 2019 05:29
If y’all read the previous thread I made it may make some sense. But right now she runs with the head light on low beam. As soon as you turn high beam on the bike shuts off.
Any ideas?
Thanks!
Any ideas?
Thanks!
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- loudhvx
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Re: KZ750 high beams shut bike off.
06 Jan 2019 10:08 - 06 Jan 2019 13:33
Even though this issue might be unrelated to the ignition switch, I'd keep it all in one thread because the new ignition switch will be relevant for testing and troubleshooting. Until the details of the ignition switch are ironed out, as in it's working as expected, there are possible hidden variables to consider while troubleshooting the hi-beam/ignition issue.
Once the ignition switch is working as expected, then you can use it as a test-point to troubleshoot the hi-beam/ignition problem.
Once the ignition switch is working as expected, then you can use it as a test-point to troubleshoot the hi-beam/ignition problem.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
Last edit: 06 Jan 2019 13:33 by loudhvx.
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- Warren3200gt
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Re: KZ750 high beams shut bike off.
06 Jan 2019 10:18 - 06 Jan 2019 10:21
Are you sure your high beam and kill switch wires are connected to the loom correctly? Just thinking aloud as that would / could also affect your ignition switch performing as expected.
Last edit: 06 Jan 2019 10:21 by Warren3200gt.
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- JohnLuke
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Re: KZ750 high beams shut bike off.
06 Jan 2019 15:04
I believe my ignition switch is working properly. I can only start the bike in the ON position and the ACC position just turns on the electronics but no start on ACC. I think that’s to be expected. So I’m still having trouble with that high beam switch. Not sure why.
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- loudhvx
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Re: KZ750 high beams shut bike off.
06 Jan 2019 15:55 - 06 Jan 2019 16:04JohnLuke wrote: I believe my ignition switch is working properly. I can only start the bike in the ON position and the ACC position just turns on the electronics but no start on ACC. I think that’s to be expected. So I’m still having trouble with that high beam switch. Not sure why.
That is not how it should be working based on the diagram I drew. (I've wired quite a few bikes with a generic switch in the exact way we talked about and it works as intended to give an option of riding without headlights.)
The ACC position should power everything except the headlights and the bike should run without headlights.
The IGN position should power everything including the headlights and the bike should run with headlights.
The ACC output should have power in two positions.
The IGN output should only have power in one position.
This way you have the option of running the bike with headlights or without.
The way you describe it working, you have lights in two positions, but ignition only in one position.
This means you have the option of everything, or lights only.
This indicates the switch is wired incorrectly, different from the diagram.
In order to start troubleshooting the high-beam problem, the ignition switch has to be confirmed to work as expected based on how it is wired (following the diagram).
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
Last edit: 06 Jan 2019 16:04 by loudhvx.
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- JohnLuke
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Re: KZ750 high beams shut bike off.
06 Jan 2019 20:04
I guess tomorrow I’ll just move the wires around on the switch until I get what I need. But if I’m not mistaken it is wired the way you said. But obviously something is wrong . Currently I don’t have the reserve lighting device plugged in. Nor does it run on en plugged in.
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- Nerdy
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Re: KZ750 high beams shut bike off.
06 Jan 2019 20:07
Does the kill switch turn on the high beam?

1967 Yamaha YCS1 Bonanza
1980 KZ440B
1981 Yamaha XT250H
1981 KZ440 LTD project bike
1981 GPz550
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- JohnLuke
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- JohnLuke
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Re: KZ750 high beams shut bike off.
06 Jan 2019 21:14
Are we even sure if this switch has the functionality we’re trying to get from it? Because the instructions say that the ACC is for electrical, not ignition. I guess at this stage I won’t be that mad if I can’t turn the headlights off.
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- loudhvx
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Re: KZ750 high beams shut bike off.
07 Jan 2019 09:36 - 07 Jan 2019 10:04
Every generic 3-position switch I've used worked the same way. ACC means accessories like the radio, but nothing to make the car run.
The normal function would be just like in a car. OFF is everything powered off. Next position would be ACC where just the radio would get power, then next would be ON or IGN where the rest of the car's electrical (ignition, charging, etc ) gets power.
I edited the diagram to show what to try next on the ignition switch.
Once we know that is working correctly, we can use a voltmeter to start troubleshooting the high-beam issue.
Do you have a volt meter? Or a test light that you know very well (some might have quircks).
The normal function would be just like in a car. OFF is everything powered off. Next position would be ACC where just the radio would get power, then next would be ON or IGN where the rest of the car's electrical (ignition, charging, etc ) gets power.
I edited the diagram to show what to try next on the ignition switch.
Once we know that is working correctly, we can use a voltmeter to start troubleshooting the high-beam issue.
Do you have a volt meter? Or a test light that you know very well (some might have quircks).
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Kz550 valve train warning.
Other links.
Last edit: 07 Jan 2019 10:04 by loudhvx.
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- JohnLuke
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