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Popping Noise

Discussion in 'XJ Technical Chat' started by George125, Aug 29, 2016.

  1. George125

    George125 New Member

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    Hey all,
    I've been trying to diagnose a problem for the past few days to no luck. Bike starts up just fine, but there's a faint popping coming from the exhaust when it rides. I've noticed a decrease in power since the noise started happening. I went for a short ride a little while ago and when I got back it died on me in the driveway.
    If any more info is needed just let me know.
    Any suggestions would be greatly appreciated. Thank you in advance.
     
    Last edited: Aug 29, 2016
    George125, Aug 29, 2016
    #1
  2. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Aug 29, 2016
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  3. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Tell us what you have done in terms of recomissioning matinanace since aquiring the machine.
     
    k-moe, Aug 29, 2016
    #3
  4. George125

    George125 New Member

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    I bought the bike in March. Since then I have replaced the battery, fuses, spark plugs, changed the oil, and rebuilt the petcock. I've been needing to take my carbs off and clean them, but up until a month ago I did not have a garage. Now, I just haven't had much time. I put seafoam in the gas when I first bought the bike.
     
    George125, Aug 29, 2016
    #4
    Jetfixer likes this.
  5. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Then you already know the answer to your problem....
     
    k-moe, Aug 29, 2016
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    Stumplifter, hogfiddles, Jetfixer and 2 others like this.
  6. Jetfixer

    Jetfixer Well-Known Member

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    Check and adjust valves, take your carbs to church ... do not only do part way.. break the rack replace butter fly seals abd gaskets . Part of the popping is possible carbs are not synched correctly ... check with a 4 vacuum gauge is my set up preffence , but a home made mamoneter can also get good results. You could try this before doing carbs which would entail adjusting synch screws . Good luck.
     
    Jetfixer, Aug 29, 2016
    #6
    Stumplifter likes this.

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