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Thread: A little assistance dialing in 07 yfz 450 carb.

  1. #1
    Nightmare's Avatar
    Nightmare is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Sep 2010
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    lehigh valley, PA
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    A little assistance dialing in 07 yfz 450 carb.

    I am doing a side job for a buddy. He purchased this 07 yfz450 real cheap. It needed a little bit of work to look right and get in riding condition.
    I cleaned the carb perfectly, and cleaned all the interenals nicely.
    I am having a backfiring issue on decel. But only decal. It idles perfectly, and hauls ASS! But backfires on decel pretty bad. Any help woutl e greatly appreciated.
    Ride: 1986 Honda ATC 200x
    Following Mods Done:
    -Anodized blue block-off plate
    -Factory head light and master cylinder guard
    -ITP mudlite SP rear tire/Chengshin turf tamer front
    -DG reverse megaphone exhaust
    -UNI airfilter
    -Moose bars/Protaper Grips/MotionPRO twist Throttle
    -CEET classic ATC blue seat cover (should of sent it to mosh :-(...)
    -Tuned Carb with a 125 main jet
    -COMPLETELY restored gas tank
    -RED/WHITE PowerMadd Handguards
    -1/4" thick aluminum swing arm skid plate!

  2. #2
    KASEY's Avatar
    KASEY is offline weee weeee weeeeeeeeeee ! ! ! The day begins with 3WW
    Join Date
    Jan 2003
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    ARIZONAS BIGGEST TROUBLEMAKER
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    4,250
    lean.. on the pilot jet or you have leaks in the exhaust pipe somewhere...

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