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mxsimps

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About mxsimps

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    TT Newbie

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    Michigan
  1. mxsimps

    forest service approved pipe for 2010 CRF250R

    The new DRD is 94db and comes with the spark arrestor screen insert.
  2. mxsimps

    2004 CRF250R Valve Problem

    I had the same problem with my 04 head. After replacing the stock valves twice, the valve seat material finally started to chip away. I bought a 2007 head, which has an updated valve seat material, and installed a Kibblewhite valve & spring kit. I have only had to perform one valve adjustment after 50 hrs of use mixed between trail riding and motocross racing.
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