91 sportster backfire..

Discussion in 'Sportster Models' started by julliani, Jun 10, 2010.

  1. julliani

    julliani New Member

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    I have a 1991 sportster 1200 it has been backfiring after the engine is warm. it only does it while im am giving it a steady throttle. any ideas????
     
  2. glider

    glider Veteran Member

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