Proper Blown Fuse

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Yorick
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Proper Blown Fuse

Post by Yorick »

Am going out later so thought I'd check the Suzuki will start. Struggled but couldn't quite tell as had headphones on.
So turned it on again and nothing.

Then I looked at main fuse. It's melted. Even melted a little hole in plastic casing :(

It's strange how all was OK 5 seconds earlier.

Now can I just clean it all up and put a new one in?

Or best to take it to a dealer to get properly checked out?

Ta
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weeksy
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Re: Proper Blown Fuse

Post by weeksy »

Mmmm I don't like that. The obvious question is 'why'

What caused the fuse to go pear shaped.
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Re: Proper Blown Fuse

Post by Yorick »

weeksy wrote: Mon Aug 26, 2024 11:04 am Mmmm I don't like that. The obvious question is 'why'

What caused the fuse to go pear shaped.
Yup. Worried that I'll be stranded somewhere.
Have also asked on the GSXR forum to see if it's a known problem.
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Re: Proper Blown Fuse

Post by Mussels »

I'd be looking for a big and broken cable, probably to the starter motor and burned.
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Re: Proper Blown Fuse

Post by Yorick »

Also. After it was dead, I hooked it up to the battery charger.
Maybe this did the big damage after the fuse blew?
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Re: Proper Blown Fuse

Post by weeksy »

Is it possible you fitted the charger the wrong way round? That's very much like a main fuse blown by fitted red to black
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Re: Proper Blown Fuse

Post by Yorick »

weeksy wrote: Mon Aug 26, 2024 11:17 am Is it possible you fitted the charger the wrong way round? That's very much like a main fuse blown by fitted red to black
No. It's got a tail bit.
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Re: Proper Blown Fuse

Post by mangocrazy »

That kind of damage is the universe's way of telling you to find out the root cause. Is that the main fuse? As Mussels says, I'd be checking out the big current devices like starter motor and alternator. Has the regulator/rectifier gone south?
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Re: Proper Blown Fuse

Post by mangocrazy »

If you fancy doing some initial troubleshooting, there are some good investigative guides here:


https://www.electrexworld.co.uk/acatalog/Technical.html
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Re: Proper Blown Fuse

Post by Skub »

I'd want to know precisely what caused that amount of damage. Definitely not a case of sticking in a new fuse and heading off somewhere hoping for the best.
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Re: Proper Blown Fuse

Post by DefTrap »

I had something similar once. There was obvious corrosion, dirt and nastiness in and around where the main fuse had plugged in - possibly water ingress over years. Looked like it overheated before it blew the fuse.

So anyway I replacd the corroded and melted parts and the fuse, never happened again in the subsequent years I owned it.
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Re: Proper Blown Fuse

Post by Yorick »

Hmm. I don't like leccy and looks like it could be a few things. I could easily half fix it and it goes again


Gonna book it into shop.

Thanks all.
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Re: Proper Blown Fuse

Post by mangocrazy »

Keep us posted on the outcome - be interested to know what caused it.
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Re: Proper Blown Fuse

Post by A_morti »

Like they said, that's definitely not just a new fuse and ride into the sunset.

As voltage decreases, amps increase. Or something. Anyway, if the battery was very low, it could have caused things to get hot.
Or the starter or even engine might be seized.
Or dirty/ corroded/ loose terminals on a thick wire, probably with at least one end attached to the battery, starter solenoid, engine block, or starter.

Or bring it to the man to figure it out.
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Re: Proper Blown Fuse

Post by Wossname »

It’s a common problem caused by cheap beer and too much sunshine.
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Re: Proper Blown Fuse

Post by Yorick »

It's booked in. They're busy, so September 24th :(
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Re: Proper Blown Fuse

Post by weeksy »

Fuck that, but a new bike until it's ready
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Re: Proper Blown Fuse

Post by KungFooBob »

Set it on fire, claim on the insurance.

I was obviously an electrical fault that started the fire.
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Re: Proper Blown Fuse

Post by Yorick »

weeksy wrote: Tue Aug 27, 2024 2:52 pm Fuck that, but a new bike until it's ready
I'll just ride the GasGas more. I can ride the GSXR all the next few months.

And at Portimao I'm hiring a tricked up GSXR1000 .
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Re: Proper Blown Fuse

Post by ChrisW »

Didn't you have to replace the main fuse a year or so ago? Do you know why it went then?