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Loss of all power
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Loss of all power 29 Jun 2022 05:04 #869524

  • Qsmothers3
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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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Loss of all power 29 Jun 2022 05:08 #869525

  • Wookie58
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Check battery terminals and grounds (engine and chassis)
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Loss of all power 29 Jun 2022 05:39 #869527

  • TexasKZ
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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.
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2000 ZRX1100 not ridden enough
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Loss of all power 29 Jun 2022 09:26 #869539

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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

This is my Z

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Loss of all power 30 Jun 2022 05:23 #869602

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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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Loss of all power 01 Jul 2022 08:46 #869677

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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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Loss of all power 01 Jul 2022 09:05 #869681

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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. 
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Loss of all power 01 Jul 2022 09:53 #869689

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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 ?

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Loss of all power 01 Jul 2022 13:07 #869726

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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.
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Loss of all power 01 Jul 2022 15:02 #869742

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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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Loss of all power 14 Jul 2022 16:11 #870363

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It had a dead cell in the battery. Bought a new battery and she runs like a dream! 

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