Question about 2001 Yamaha YZ 426 F

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Header glows rebuilt carberator now head glows

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  • carloshami May 21, 2009

    yes header glowes bright orange in broad daylight

  • carloshami May 21, 2009

    the bike was hard to start so i cleaned carb and put new float and gaskets in it. now it still hard to start and when i do start it the header glows. i adjusted fuel screw moved clip on needle down one position but can't figure it out.

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Hi Carlo,

with regard to the issue and when you said the header was glowing, did you mean like its almost at a metal melting point, like a blacksmith's glowing hot iron?

Posted on May 20, 2009

  • 1 more comment 
  • marlon john madrid
    marlon john madrid May 21, 2009

    is this an aftermarket set or OEM? never had this kind of issue with FMFs or any AMs not even OEMs even after continuous trail rides

  • marlon john madrid
    marlon john madrid May 21, 2009

    is this an aftermarket set or OEM? never had this kind of issue with FMFs or any AMs not even OEMs even after continuous trail rides

  • marlon john madrid
    marlon john madrid May 22, 2009

    cool
    i made a research on the glow and it was actually normal. the engine fires more pack (after redoing the carb) to instead of the pipe getting hit with a compressed hot air every other combustion, instead it gets hit with firings.

    looks cool, just dont let your boots on it too long.

    happy riding buddy


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