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  #1  
Old 2nd December 2017, 01:12 PM
vroomvroom vroomvroom is offline
Wobbling Fledgling
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Headlight blowing fuse

Hi,I've got a 95 Vulcan 500 and the headlight keeps blowing the fuse in the junction box. I took the headlight apart to check for any loose connections. There's 3 wire's going into the back of the light socket but 1 of them(the ground?) has its copper core just hand wrapped around the retaining spring inside the socket. This isn't right is it? surely this is the prob? Any ideas or advice? Thanks in advance.
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  #2  
Old 2nd December 2017, 04:23 PM
gixer1100's Avatar
gixer1100 gixer1100 is offline
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2,258 posts since Jul 2008
Motorbike: gsxr 1000 fighter,blade
Modifications: a few
Default Re: Headlight blowing fuse

nope its not right...I take it its a h4 bulb
3 pin...it needs to be on the bulb...
if you were near me I'd fit it for you...
get up a pic

Last edited by gixer1100; 2nd December 2017 at 04:24 PM.
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  #3  
Old 2nd December 2017, 05:05 PM
vroomvroom vroomvroom is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Re: Headlight blowing fuse

thanks for the reply...it does seem like your usual set up.
the bulb end looks like this...Click the image to open in full size.
with the green wire wrapped around a spring inside the socket itself...

the bulb isn't a pin bulb,its got more of the domestic end about it like this...
http://www.steadfastcycles.com/cart/...oducts_id=4552

would the spring act as ground? If so would it be worth soldering it on..Or would I be as well of replacing the whole lot?

Thanks again..feckin 'lectrics!
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  #4  
Old 2nd December 2017, 05:06 PM
vroomvroom vroomvroom is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Re: Headlight blowing fuse

Meant doesn't seem like usual set up!
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  #5  
Old 2nd December 2017, 07:30 PM
Blanka Blanka is offline
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Biker.ie Member No. 5983
1,062 posts since Jun 2007
Motorbike: fazer
Default Re: Headlight blowing fuse

Can you put up a picture of the connector? It sounds like someone might have bodged in the wrong bulb and the power wire is shorting to ground and blowing the fuse.
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  #6  
Old 3rd December 2017, 11:47 AM
vroomvroom vroomvroom is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Re: Headlight blowing fuse

This is the back of the light socket,you can see the blue and white wires attached to the back of the socket and the green wire is wrapped around a spring inside..
https://photos.app.goo.gl/DqW6TMdRowq0CWql1
would this be be a sufficient ground if soldered?
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  #7  
Old 3rd December 2017, 06:51 PM
Blanka Blanka is offline
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Biker.ie Member No. 5983
1,062 posts since Jun 2007
Motorbike: fazer
Default Re: Headlight blowing fuse

I could be wrong and hopefully someone corrects me if I am but I don't think a bad ground connection would blow a fuse. A bad ground would cause more resistance so a voltage drop and less current would flow. Your lights would get dimmer or they might not work at all. If that bare wire is a power wire and it's shorting by touching the bulb holder then that would blow the fuse.
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  #8  
Old 3rd December 2017, 07:16 PM
vroomvroom vroomvroom is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Re: Headlight blowing fuse

Makes sense...I didn't get a voltmeter on it because it was so deliberately coiled around the spring I just presumed it was a make shift grounding. Going to just bite the bullet and order a new bulb and unit I think. Thanks for the help and info.
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  #9  
Old 3rd December 2017, 07:29 PM
Blanka Blanka is offline
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Biker.ie Member No. 5983
1,062 posts since Jun 2007
Motorbike: fazer
Default Re: Headlight blowing fuse

You could try disconnecting that bare wire and make sure it doesn't touch anything then stick a new fuse in and see if either high beam or low beam works. If it's a power wire and it's shorting and blowing the fuse disconnecting it should allow the other circuit to work with a new fuse
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  #10  
Old 3rd December 2017, 09:17 PM
vroomvroom vroomvroom is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Re: Headlight blowing fuse

I'll give it go,no harm trying.
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  #11  
Old 7th December 2017, 09:33 AM
vroomvroom vroomvroom is offline
Wobbling Fledgling
Original Poster of This Thread Topic Starter
 
Biker.ie Member No. 37735 from Galway
9 posts since Oct 2017
Motorbike: vulcan 500
Default Re: Headlight blowing fuse

Originally Posted by vroomvroom View Post
I'll give it go,no harm trying.
That worked!! Thanks for the advice....
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  #12  
Old 7th December 2017, 09:18 PM
Blanka Blanka is offline
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Biker.ie Member No. 5983
1,062 posts since Jun 2007
Motorbike: fazer
Default Re: Headlight blowing fuse

Originally Posted by vroomvroom View Post
That worked!! Thanks for the advice....
No problem That'll get you going for now but you should probably still replace the bulb and connector for a newer style one so you don't have problems in the future.
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