1982 GPZ 550 BATT Warning Light Question - Kawasaki Motorcycle Forums
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post #1 of 20 (permalink) Old 05-07-2017, 11:30 PM Thread Starter
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1982 GPZ 550 BATT Warning Light Question

My new to me 1982 GPZ 550 is flashing the gauge "BATT" warning light and the "WARNING" light too. Why is it doing this, what does this mean? It's on a smart charger and starts and runs fine.
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post #2 of 20 (permalink) Old 05-08-2017, 02:48 PM
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Your bike probably has (or had) a battery sensor of some sort.
When the sensor isn't used, the warning light flashes. I don't know the simplest way to disable it.
The 82 750-R1 battery sensor has a pink wire that needs to be connected to a switched 12 VDC source.
The brown wire circuit would be one way to do it; the horn is usually on that circuit.
The brown wiring coming from the ignition switch has a bullet connector, so maybe a double connector could be used there to attach the pink wire.



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1981 KZ650-CSR. Competition, Sports & Road.
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post #3 of 20 (permalink) Old 05-08-2017, 02:59 PM Thread Starter
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It's bone stock, had it for a week. Rode it for the first time Sunday and noticed the BATT light was now flashing
. . . as simple as topping off the battery?
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post #4 of 20 (permalink) Old 05-09-2017, 12:24 AM Thread Starter
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Apparently, it means low battery acid levels.
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post #5 of 20 (permalink) Old 05-09-2017, 09:09 AM
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Yes. I've never heard of anyone actually using the thing & it doesn't work on AGM batteries.
Most guys just want a permanent way to stop the battery light from blinking. hee.


ps: I would check the battery & load test it. The bike needs a good, fully charged battery to run right.




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1981 KZ650-CSR. Competition, Sports & Road.
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post #6 of 20 (permalink) Old 05-12-2017, 05:39 PM
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Try filling the battery with distilled water, if that does not squelch the warning light i can easily tell you how to wire the sensor so that it is not a warning. Whatever you do, DO NOT FOR ANY REASON attach the sensor wire to an12 volt circuit, it is meant to sense app 6 volts from the center of the battery, 12 v will damage the onboard diagnostic center

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post #7 of 20 (permalink) Old 05-14-2017, 10:45 AM
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Don't you love it when some one ask a question that gets answers and then never replies again? Seems like the membership on this site has dwindled drastically.

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post #8 of 20 (permalink) Old 05-14-2017, 12:30 PM Thread Starter
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Bob: After refilling it earlier in the week, the darn thing is on again. How do you wire it so it doesn't go off anymore?
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post #9 of 20 (permalink) Old 05-14-2017, 06:35 PM
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is battery still full? If it is overcharging and boiling the electrolyte out of the battery then the warning is a good thing

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post #10 of 20 (permalink) Old 05-14-2017, 06:36 PM
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The sensor wire is in one of the center cavities?

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