Bike cut out in the middle of riding

Discussion in 'Sportster Models' started by RideTheLightning, May 2, 2011.

  1. RideTheLightning

    RideTheLightning Active Member

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    I was getting off the highway and the bike just stopped running. I was able to pull off to the side of the road safely. Tried to start her up again with no luck. The starter motor cranked, I was getting kind of a backfiring noise and a small smell of gasoline.

    Got a tow, got it to the bike shop and it started right up... then died again.

    So I have what seems like a intermittent spark.

    Do you guys think it's as simple as fouled plugs or more of a major issue? I am just looking for ideas of what it might be while I am sitting idly.

    Thanks,
    RTL
     
  2. Bodeen

    Bodeen Well-Known Member Staff Member Moderator Contributor

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    What was the last mod you did to it? Start there. Kill switch is a culprit. Had the bars off latley? All the lights stay on when this happens? Or is completely dead?
    Fouled plugs wouldnt just start working again. Maybe its a heat issue?

    Bodeen
     
  3. Dr. Dolittle

    Dr. Dolittle Experienced Member Staff Member Moderator Contributor

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    Bad gas? Did you fill up recently?
     
  4. Hoople

    Hoople Account Removed

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    Is a 2002 Sportster carb or FI.
     
  5. RideTheLightning

    RideTheLightning Active Member

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    Last mod was me putting on S&S slip-on mufflers in maybe October '10. Bars have not been off ever. Lights stayed on.
    Yes. I put about 1 gallon of 93 octane (full tank), rode roughly 30 miles, then this happened.
    Carb. :p

    Appreciate the responses! :)
     
  6. glider

    glider Veteran Member

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    I would say it looks like bad gas. May pay to pull the tank and clean it out, then drain or pull the float bowl and do the same.

    Look for the screw to drain the float bowl.

    [​IMG]

    *Poor Performance With Carb Models - Harley Davidson Community
     
  7. RideTheLightning

    RideTheLightning Active Member

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  8. Jack Klarich

    Jack Klarich Expert Member

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    Check the petcock and fuel strainer make sure you have good flow:s
     
  9. glider

    glider Veteran Member

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    Bad gas covers water or debris in the fuel from the station where you got the fuel.
     
  10. RideTheLightning

    RideTheLightning Active Member

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    This post made me lol. :D Will do.

    Cool. Would using a fuel additive like MMO or Seafoam help prevent this type of thing from happening or is it more on a case-by-case basis?

    Your link will definitely help me in the future.

    Every time I jump on this forum I get a little motivated to become a DIY guy. :)