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80 gs550 fuse problem???

  • Thread starter Thread starter Wicked 550
  • Start date Start date
W

Wicked 550

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Hey guys I have a 1980 gs550 that I have been working on bobbering. Anyways I bought an aftermarket tail/brake light and for some reason I keep blowing the "signal" fuse. I can wire it to always have a running light but the second I wire it for the brake light and grab the brake the signal fuse will blow. I cut all the blinkers off and taped all the wires front and rear,
Could that have anything to do with no brake light and the blowing of the fuse?I'm pretty stumped here haha.
 
Wicked 550 said:
Hey guys I have a 1980 gs550 that I have been working on bobbering. Anyways I bought an aftermarket tail/brake light and for some reason I keep blowing the "signal" fuse. I can wire it to always have a running light but the second I wire it for the brake light and grab the brake the signal fuse will blow. I cut all the blinkers off and taped all the wires front and rear,
Could that have anything to do with no brake light and the blowing of the fuse?I'm pretty stumped here haha.
Click to expand...
You must have a dead short some where in your brake light circuit.
 
You say that the tail light is OK, but it blows when you apply the brake. Since it does not blow before you apply the brake, there is no reason so suspect your cut and taped signal wires. Apparently there is a direct short in the tail/brake light.

Are you sure you have the wires connected correctly? Have you verified off the bike that the tail/brake light is working correctly? Not all aftermarket companies are kind enough to actually provide accurate documentation for their product, so please verify that it actually works, then install it on the bike. If it still blows a fuse, the problem is in the bike, not the light.

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Thanks guys if I find time today after work I'm going to go through the whole thing again. And Im sure that it's wired correctly. But I will test the light I didn't think that could be an issue at all until u mentioned that steve... I'll let u know how it goes.
 
Wicked 550 said:
... I didn't think ...
Click to expand...
Sadly, that's the reason there are so many posts in the tech help section. :oops:

You can't always trust the colors or the descriptions, especially if the product was produced "somewhat (significantly?) west of San Francisco".

Connect a jumper wire from a battery to what you believe is a ground, then connect another jumper from the positive wire of the battery to each of the two wires to see what it does. When you have verified what wire does what, then you can connect it to the bike.

Please let us know what you find.

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take the bulb out of the light and try it. I've actually seen bad bulbs and/or sockets that had a short , which blew fuses!
 
barnbiketom said:
take the bulb out of the light and try it. I've actually seen bad bulbs and/or sockets that had a short , which blew fuses!
Click to expand...
That would also show itself in the independant test that I suggested.

With the light removed from the bike (at least electrically), you can do a whole BUNCH of testing without blowing any of the bike's fuses. Once you KNOW that the bike is working, connect the wires and try again. If you blow fuses now, you know it's not the light.

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Ok so I figured it out.... Steve u were right it was the light itself the whole time! The ground was broken off completely! So I re wired the whole thing and it works like a champ haha thanks for the help guys maybe next time I won't overlook the obvious and trust what comes through the mail.
 
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