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Offline anthony28

  • Inazuma Junior
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  • Posts: 3
  • Country: United States
Electrical Issue
« on: January 16, 2021, 03:52:36 AM »
Tonight I tried to start up the bike after it sitting under a tarp for about a month.
After turning the key, the lights turned on, but when I tried to start the engine, it turned off.
Since then, turning the key does nothing - the lights dont even turn on.
I assumed it was a battery problem but it is putting out 12.3 volts.
I checked the fuses under the seat and they seem ok.
Is there another 'main fuse' that I should check?
Also is there a standard procedure for troubleshooting this kind of thing specifically for this bike?

Thanks for any help!

Offline Megashorts

  • Inazuma Member
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  • Posts: 37
  • Country: UK
Re: Electrical Issue
« Reply #1 on: January 16, 2021, 07:41:25 AM »
You need a service manual. If you go to manuals.lib you can find one. In section 9 there are diagrams and a fault finding guide.

Offline DJN

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  • Country: UK
Re: Electrical Issue
« Reply #2 on: January 16, 2021, 02:16:47 PM »
Sounds like a  dying  battery.  How old is it ?
I get  13V  open circuit on my year old battery.

Offline Megashorts

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  • Country: UK
Re: Electrical Issue
« Reply #3 on: January 16, 2021, 04:20:42 PM »
An AGM battery at 12.3v (assuming its lost any surface charge) is at around 70% capacity and should easily start the bike.

Offline anthony28

  • Inazuma Junior
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  • Posts: 3
  • Country: United States
Re: Electrical Issue
« Reply #4 on: January 16, 2021, 04:24:52 PM »
The battery is 3 years old, although Im fairly certain it is OK. 12.3 volts should be fine from what I have read.
Looking at the manual, referencing the section Starter motor will not run of 9-12, I followed those directions.
There is no click in the starter relay.
I checked the starter relay voltage, according to the manual 'is a voltage OK', IDK what 'OK' is Im getting 0.3 Volts across the starter relay.
My electrical knowledge is limited, should everything read the same voltage as across the battery - 12.3 Volts?
Sorry for any silly questions I've never worked on the bike before. 

Offline Megashorts

  • Inazuma Member
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  • Posts: 37
  • Country: UK
Re: Electrical Issue
« Reply #5 on: January 16, 2021, 04:45:54 PM »
You should get very close to the 12v battery voltage across the Y/G & B/Y wires with the clutch pulled in when you press the starter button.


Offline anthony28

  • Inazuma Junior
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  • Posts: 3
  • Country: United States
Re: Electrical Issue
« Reply #6 on: January 16, 2021, 11:45:05 PM »
Turns out, the battery was completely dead.
Even though it was putting out 12.3 volts, it was putting out almost no power.
The auto parts store told me it was completely dead.
I assume it had something to do with not being ridden in over a month and the extreme cold weather recently.
I bought a new battery, and Im back up and running.
Thanks for the help!

 


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