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    garerae's Avatar
    garerae Posts: 2, Reputation: 1
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    #1

    Jun 20, 2009, 07:36 AM
    87virago backfiring
    Hey there, I just bought a 87 virago its very loud and backfires even when idling how can I fix this and what would cause it thanks gare
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Jun 20, 2009, 07:39 AM

    I would start with a good tune up, timing?
    darthsinister's Avatar
    darthsinister Posts: 25, Reputation: 1
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    #3

    Jun 21, 2009, 08:57 PM
    Definitely sounds like a timing problem.
    volcom7114's Avatar
    volcom7114 Posts: 1, Reputation: 1
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    #4

    Jul 11, 2009, 03:39 AM
    The carbs need to be the same in air and fuel so get them set. And a good tune up wouldn't hurt if you haven't already done so...
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #5

    Jul 11, 2009, 07:09 AM

    Don't think I would feed equal Air and fuel.
    Any mixture less than 14.7 to 1 is considered to be a rich mixture, any more than 14.7 to 1 is a lean mixture.
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