Midrange Miss
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    450man574
    Posts: 141
    Joined: Wed Aug 01, 2012 7:51 am

    Midrange Miss

    by 450man574 » Sat Jun 01, 2013 6:43 pm

    When my Bike is cold or Cool it Runs Great, after 2 -3 laps it starts to get a Midrange miss, as it gets warmer it is Worse. At first I thought it was the New Spark Plug, So I changed it, No Good. Moved the Needle, Little better but Not Smooth. Changed Jets up and Down, No better.
    2013 KTM 450 SX-F
    2005 CRF450R
    2007 CRF250R
    2002 CR125
    2005 Brute Force 900
    1999 HD 120"
    2011 ZR-1
    2009 Viper
    2010 F-350
  • User avatar
    450man574
    Posts: 141
    Joined: Wed Aug 01, 2012 7:51 am

    by 450man574 » Mon Jun 03, 2013 6:23 am

    Stator? Coil? any Ideas?
    2013 KTM 450 SX-F
    2005 CRF450R
    2007 CRF250R
    2002 CR125
    2005 Brute Force 900
    1999 HD 120"
    2011 ZR-1
    2009 Viper
    2010 F-350
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    crfsonly
    Owner
    Posts: 9651
    Joined: Thu Apr 01, 2004 3:45 pm

    by crfsonly » Mon Jun 03, 2013 4:27 pm

    is it an electrical miss or a fuel delivery stumble?
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
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  • User avatar
    450man574
    Posts: 141
    Joined: Wed Aug 01, 2012 7:51 am

    by 450man574 » Mon Jun 03, 2013 6:05 pm

    Feels Like an Elec Miss
    2013 KTM 450 SX-F
    2005 CRF450R
    2007 CRF250R
    2002 CR125
    2005 Brute Force 900
    1999 HD 120"
    2011 ZR-1
    2009 Viper
    2010 F-350
  • User avatar
    crfsonly
    Owner
    Posts: 9651
    Joined: Thu Apr 01, 2004 3:45 pm

    by crfsonly » Wed Jun 05, 2013 5:23 pm

    if it is, they are more difficult to diagnose. do you have a known good bike to swap parts from to determine which if any electrical component is bad?
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    _________________
    CRF Parts and Accessories: http://crfsonly.com
  • User avatar
    450man574
    Posts: 141
    Joined: Wed Aug 01, 2012 7:51 am

    by 450man574 » Wed Jun 05, 2013 5:29 pm

    CDI Box Was Bad
    2013 KTM 450 SX-F
    2005 CRF450R
    2007 CRF250R
    2002 CR125
    2005 Brute Force 900
    1999 HD 120"
    2011 ZR-1
    2009 Viper
    2010 F-350
  • User avatar
    crfsonly
    Owner
    Posts: 9651
    Joined: Thu Apr 01, 2004 3:45 pm

    by crfsonly » Wed Jun 05, 2013 5:52 pm

    excellent...that's the first one to try. glad you found it.

    ken
    OEM Parts for Honda - Yamaha - Suzuki - Kawasaki: http://yeltrik.com
    _________________
    CRF Parts and Accessories: http://crfsonly.com

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