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Thread: Keep blowing ignition fuses

  1. #1
    Junior Member
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    Keep blowing ignition fuses

    OK. Searching has shown me that this is a common problem with the XB's. I've done some of the troubleshooting steps. The fuse blows when I have the ignition relay in place. It does not when I remove the relay. I have swapped all the relays around so I'm fairly certain the relay isn't the issue. I've also seen where the #77 connector to the voltage regulator can be removed to diagnose. Which of the connectors down by the front sprocket is the proper connector? It's the one with just the red and black wire, correct? If so, I have disconnected that and the fuses still blow. So I assume that rules out the voltage regulator? Does that just leave me with hunting down a short somewhere?

  2. #2
    Senior Member lunaticfringe's Avatar
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    Quote Originally Posted by mfergel View Post
    OK. Searching has shown me that this is a common problem with the XB's. I've done some of the troubleshooting steps. The fuse blows when I have the ignition relay in place. It does not when I remove the relay. I have swapped all the relays around so I'm fairly certain the relay isn't the issue. I've also seen where the #77 connector to the voltage regulator can be removed to diagnose. Which of the connectors down by the front sprocket is the proper connector? It's the one with just the red and black wire, correct? If so, I have disconnected that and the fuses still blow. So I assume that rules out the voltage regulator? Does that just leave me with hunting down a short somewhere?

    Searching has shown me that this is a common problem with the XB's.
    your search engine is incorrect. it's not.


    Does that just leave me with hunting down a short somewhere?
    yes....it does. likely areas:
    top of motor rearward of coil.....harness to injectors
    77 connector....see pic...then see arrow
    small harness beneath motor and atop muffler/cowling bracket areas
    steering neck harness wrap specifically the much-maligned "brown wire".

    452650.jpg

  3. #3
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    Quote Originally Posted by lunaticfringe View Post
    Searching has shown me that this is a common problem with the XB's.
    your search engine is incorrect. it's not.


    Does that just leave me with hunting down a short somewhere?
    yes....it does. likely areas:
    top of motor rearward of coil.....harness to injectors
    77 connector....see pic...then see arrow
    small harness beneath motor and atop muffler/cowling bracket areas
    steering neck harness wrap specifically the much-maligned "brown wire".

    452650.jpg
    Google would disagree. Bunch of these on the BadWeatherBikers forum.

    I'll take a look at the connector again as I may have pulled a different one.

  4. #4
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    Quote Originally Posted by mfergel View Post
    Google would disagree. Bunch of these on the BadWeatherBikers forum.

    What did Google say?

    What did the BadWeatherBikers forum say?

  5. #5
    Senior Member rchuff's Avatar
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    You know Google doesn't lie!!!. Lol!!!


    Last edited by rchuff; 09-13-2019 at 10:03 PM.

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