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About YZ400Stefan

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    TT Newbie

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  • Location
    New Jersey
  1. YZ400Stefan

    99 YZ400 JETTING W/ Big Gun Exhaust

    Thanks I'll give it a try...Can I change it without taking the CARB out?
  2. Can anyone tell me what MAIN jet and what PILOT jet to use with this BIG GUN Race Exhaust setup?