750sx high and low speed needle won't adjust stock 40mm carb
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  1. #1
    PWCToday Newbie
    Join Date
    Jul 2020
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    Raleigh
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    29

    750sx high and low speed needle won't adjust stock 40mm carb

    I have stock 40mm on a 93. I went to check the hi and low speed settings.

    -High speed needle would turn in, but not stop turning. I could reverse it and pull the needle completely out of carb.

    -Low speed needle turns both ways, will not bottom out or reverse out.

    The needles have a plastic cap that sits on the brass needle - maybe the cap is turning and not the needle?
    Am I missing something?

  2. #2
    Top Dog FOG's Avatar
    Join Date
    May 2004
    Location
    Mesquite, NV
    Posts
    1,335

    Re: 750sx high and low speed needle won't adjust stock 40mm carb

    Pop the plastic caps off. Personally, I never put them back on...pita's.
    I'll quit before I sit~~~

  3. #3
    PWCToday Newbie
    Join Date
    Jul 2020
    Location
    Raleigh
    Posts
    29

    Re: 750sx high and low speed needle won't adjust stock 40mm carb

    I pulled the carb off and was able to pry off the caps. Needles broke free. Thanks for the tip.

  4. #4
    Resident Guru
    Join Date
    Dec 2014
    Location
    SRQ FL
    Age
    32
    Posts
    1,029

    Re: 750sx high and low speed needle won't adjust stock 40mm carb

    the caps are good for making those "final adjustments" after you dial the ski in really close but yeah theyre a pain in the ***. the keihins are not easy to adjust while theyre on the ski either
    1994 WB1 1100 conversion - 57mph on GPS

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