2003 Yamaha YZ 125 Logo
Anonymous Posted on Sep 18, 2010

Were is the fuel fiter - 2003 Yamaha YZ 125

  • Marvin
    Marvin Sep 18, 2010

    the factory doesn't install a separate fuel filter is my understanding.

  • Anonymous Sep 18, 2010

    so there is no fuel filter? when i hit the gas it bogs down and dies like there is a clog of some sort.

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Danny

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  • Expert 127 Answers
  • Posted on Sep 27, 2010
Danny
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The factory does have a sort of filter that they install on the fuel petcock( on/off fuel switch mounted under tank) but it is a screen( usually plastic) you have to take the 2 screws off and remove the on/off switch to get to it( drain fuel first)......but they hardly ever get clogged!!!! you can check,but i dont think thats your problem...sounds to me like your either running to rich or to lean which will be a carb issue.... do you foul plugs allot?or get a black oily residue leaking from exhaust?( to rich or to much fuel to engine from carb ) if not then sounds like its running to lean.( not enough fuel) ( rich or lean will cause it to bog when hammering on throtle..) if your running lean i would remove carb and clean with carb cleaner( might have a partially pluged jet in the carb.......

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