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Differences in CRF 250 Heads
  • Bigbird
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    Joined:Tue Aug 08, 2006 9:02 pm
    Differences in CRF 250 Heads

    by Bigbird » Tue Aug 27, 2013 9:06 am

    What are the differences between a 2005, 2006, and 2007 CRF 250R heads? And... when were there significant changes in head design?
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    crfsonly
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    Re: Differences in CRF 250 Heads

    by crfsonly » Tue Aug 27, 2013 1:47 pm

    The changes were primarily port changes. They are completely backward and forward compatible with the 2004-2009 CRF250R series. The best porting of the three you mentioned is the 2007. They continued to make porting improvements beyond 2007 and reduced the stem diameter of the 2008-2009 heads.
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  • Bigbird
    Posts:37
    Joined:Tue Aug 08, 2006 9:02 pm

    by Bigbird » Tue Aug 27, 2013 4:54 pm

    Thanks once again.
  • Bigbird
    Posts:37
    Joined:Tue Aug 08, 2006 9:02 pm

    by Bigbird » Tue Aug 27, 2013 4:55 pm

    Thanks once again.
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    crfsonly
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    by crfsonly » Wed Aug 28, 2013 10:36 am

    you're welcome. let me know if you have further questions.
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