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air/ fuel ratio screw??

Discussion in 'Other Motorcycles' started by himmetal, Sep 10, 2011.

  1. himmetal

    himmetal New Member

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    i have a set of mikuni carbs on my gs450 and it is running lean and i need to adjust the air fuel mixture. is the adjustment screw hiding under a metal plug because of the epa regulations??? help???
     
    himmetal, Sep 10, 2011
    #1
  2. Ravenz07

    Ravenz07 Member

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    The metal plug needs to be drilled out, but be careful. You dont want to go too far and hit your pilot screw.
     
    Ravenz07, Sep 10, 2011
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  3. himmetal

    himmetal New Member

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    thank you! Is that the the only obvious metal plug on the carb?
     
    himmetal, Sep 10, 2011
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  4. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Probably. At least the only one you'll see looking straight down.

    Are they CV's? (I'm assuming they are.)

    If so, the plug you're looking for is over the pilot (mixture) screw. If indeed they're CV's, they'll be very similar to this: http://xjbikes.com/Forums/viewtopic/t=31061.html The second pic in the article shows it clearly (with the plug removed.)
     
    bigfitz52, Sep 10, 2011
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  5. himmetal

    himmetal New Member

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    yes thank u!
    they are cv carbs
     
    himmetal, Sep 10, 2011
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