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I have a 2005 r1 that I rebuilt the motor replaced the pistrods in it and now all it does is backfire through the throttle body the time is set to spec any help will do

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  • Cars & Trucks Master
  • 519 Answers

Hi Did you check the valve clearance tight valves will create this problem?

Posted on Apr 15, 2015

  • Anthony Harrigle
    Anthony Harrigle Apr 15, 2015

    Yes I did each rod was replaced wit the right color code

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