Author Topic: blowing main fuse once running  (Read 2008 times)

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Offline hardy

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blowing main fuse once running
« on: November 05, 2016, 10:04:25 PM »
Hi Guys,

I have an issue where the bike blows the main fuse when it is running for a few seconds, or when the bike is rocked. I am yet to rip and tear it apart, but as the bike has the original wiring harness am sure it has rubbed through somewhere.

So question is, are there any common wear points for the harness? I sure around the steering head where wires move will be a common one? 

Any other hints? 8)

ryan

Offline moonpup

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Re: blowing main fuse once running
« Reply #1 on: November 06, 2016, 11:29:38 AM »
I would think that the "rats nest" of wires in the headlight bucket might warrant a peek...  ;D
« Last Edit: November 06, 2016, 12:15:21 PM by moonpup »
Confucius say... "Better to have Bridgestone than Kidneystone"

Offline BRT-GTR

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Re: blowing main fuse once running
« Reply #2 on: November 06, 2016, 04:23:37 PM »
          Also check wiring to the coils under the tank, and around the rectifier. Could be a faulty rectifier.
     This type of fault can take some finding, I hope you get lucky.

        Brian.
« Last Edit: November 06, 2016, 04:29:42 PM by BRT-GTR »
Unspoiled by progress.

Offline hardy

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Re: blowing main fuse once running
« Reply #3 on: November 06, 2016, 05:41:20 PM »
I would think that the "rats nest" of wires in the headlight bucket might warrant a peek...  ;D

I pulled one out of the muffler when it was first received so anything is possible! I think it will just be a cause of start with the basics and move forward...

Offline coxy

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Re: blowing main fuse once running
« Reply #4 on: November 08, 2016, 02:41:51 PM »
does the fuse blow when you turn the key to the on position for the headlight?

Offline hardy

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Re: blowing main fuse once running
« Reply #5 on: November 09, 2016, 01:31:11 AM »
No not at all. Fuse is fine in any position until the bike is kick started. Any thoughts Coxy?

Offline husker

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Re: blowing main fuse once running
« Reply #6 on: November 09, 2016, 08:10:37 AM »
I had that problem when I first got my GTR running and found insulation missing on the connection from the rear brake switch that was touching the oil tank. I got lucky and found it fairly quickly......Rod
1968 Bridgestone GTR350,  1971 Kawasaki A7SS, 1983 KZ750 LTD

Offline hardy

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Re: blowing main fuse once running
« Reply #7 on: November 12, 2016, 07:24:28 AM »
Funny you should mention it, I fixed this fault on day one of ownership lol

Offline hardy

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Re: blowing main fuse once running
« Reply #8 on: December 05, 2016, 06:48:38 AM »
I've found the offending wire. It was in the wiring loom where it went through the bottom of the headlight bucket. There was no rubber grommet, so it had rubbed through.

New Gromit ordered, will be on the road again before Xmas! ;D

Offline slawsonb

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Re: blowing main fuse once running
« Reply #9 on: December 05, 2016, 10:29:33 AM »
Excellent!
...bert

 


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