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jaybnsn

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About jaybnsn

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    TT Newbie

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    Arizona
  1. jaybnsn

    noise in engine

    yes i installed the auto decompression cam that cam out in 03
  2. jaybnsn

    noise in engine

    I own a 02 yz250f. i bought used from guy that never rode it. the guy is a freind of mine. performed cam mod before ever riding it. have ridden approx 30-40 hrs sense.bike has alot of power and torque but top end is noisy/rattly on decel and high rpms. noise could be normal not sure. checked valve clearances during mod and where fine. My question is are most or all 4 strokes noisy in the valve train area? Is that noise normal
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