Loss of all power

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29 Jun 2022 05:04 #869524 by Qsmothers3
Loss of all power was created by Qsmothers3
So I was riding my 82 kz440 this morning and when I went to take off from a stoplight I lost all electrical power. Last week I blew the main fuse so I replaced it. I checked that this morning and put a new one in for safe measure. Still no power. Any advice?

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  • Wookie58
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29 Jun 2022 05:08 #869525 by Wookie58
Replied by Wookie58 on topic Loss of all power
Check battery terminals and grounds (engine and chassis)
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca
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29 Jun 2022 05:39 #869527 by TexasKZ
Replied by TexasKZ on topic Loss of all power
Also make sure the battery is fully charged and have it load tested. Battery stores and many auto parts stores will do it for free. A dead cell can act the way you describe.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
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  • gd4now
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29 Jun 2022 09:26 #869539 by gd4now
Replied by gd4now on topic Loss of all power
Agree that the battery is the first thing to check.  In my experience the other likely things to look at are the fuse box and the keyed switch.  Do you have a VOM or test lite to help you find the issue?

In the past the solder joint on the keyed switch on my 650 that brought power to the switch broke on the switch and I lost all power.  
1977 KZ650 B1
Pods and Denco header

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  • slmjim+Z1BEBE
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30 Jun 2022 05:23 #869602 by slmjim+Z1BEBE
Replied by slmjim+Z1BEBE on topic Loss of all power

TexasKZ post=869527Also make sure the battery is fully charged and have it load tested. Battery stores and many auto parts stores will do it for free. A dead cell can act the way you describe.

Load testing is necessary when a battery is suspect.

We've seen many batteries that will show ~12 VDC no-load on a multimeter, but will not pass any significant current, dropping to near 0VDC under load.

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01 Jul 2022 08:46 #869677 by Qsmothers3
Replied by Qsmothers3 on topic Loss of all power
Turns out the battery was shot. I find that odd though because the battery is only a year old...what would cause a battery to go bad that quickly?

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01 Jul 2022 09:05 #869681 by Mikaw
Replied by Mikaw on topic Loss of all power
Scorpion by chance?… I had a battery in a mid 80’s f-150 die. No indication it was going bad. Pulled into a party store. When a went to start to leave nothing. Completely dead. It’s an electrical item it can fail at any point without reason. 
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
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01 Jul 2022 09:53 #869689 by Wookie58
Replied by Wookie58 on topic Loss of all power

Turns out the battery was shot. I find that odd though because the battery is only a year old...what would cause a battery to go bad that quickly?
has it had periods of being fully discharged then "boost charged" or "jump started" to get it back to life ?
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/filebase-alias?view=download...d-fault-diagnosis&ca

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01 Jul 2022 13:07 - 01 Jul 2022 17:01 #869726 by JR
Replied by JR on topic Loss of all power
Qsmothers3 wrote

Turns out the battery was shot. I find that odd though because the battery is only a year old...what would cause a battery to go bad that quickly?

The last 2 lead acid batteries I had lasted barely a year each. One was a generic Canadian Tire brand and the other a Yuasa which surprised me. I guess they dont make them like the used to.
1980 kz750E1, Delkevic exhaust
Last edit: 01 Jul 2022 17:01 by JR.

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  • Scirocco
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01 Jul 2022 15:02 #869742 by Scirocco
Replied by Scirocco on topic Loss of all power
It´s easy to boil out dry a new battery if the voltage regulator is going over his voltage loading limit.
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14 Jul 2022 16:11 #870363 by Qsmothers3
Replied by Qsmothers3 on topic Loss of all power
It had a dead cell in the battery. Bought a new battery and she runs like a dream! 

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