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stock jet size help 85 xj700n

Discussion in 'XJ Technical Chat' started by hardtailed81/85xj700, Sep 21, 2015.

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  1. hardtailed81/85xj700

    hardtailed81/85xj700 New Member

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    i have a carb off an 81 750 maxim that im putting on a 85 700n I know the jet sizes aren't right
    for the 700 ........110/40 195/50 is whats in the I assume hitachi carb
    what are the stock jet sizes straight from the factory on a 85xj700n
    anyone know ???????
     
  2. XJ550H

    XJ550H Well-Known Member Premium Member

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    main jet
    #107: all XJ700 non-X models.
    www.xj4ever.com part number
    HCP6317 Aftermarket Hitachi brass #107 MAIN FUEL JET, stock size for XJ700 non-X models,

    main air jet
    #70: all XJ700 non-X models, XJ750RL Seca models, and XJ750E-II models.
    HCP6311 Aftermarket Hitachi brass MAIN AIR JET #70, original size for all XJ700 non-X (air-cooled) models, XJ750RL Seca models, and XJ750E-II models.
     
  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    PILOT FUEL JET,
    #36.5: all XJ700 non-X models.
    www.xj4ever.com part number
    HCP6321 Aftermarket Hitachi brass #36.5 PILOT FUEL JET,


    Hitachi pilot air jets
    #210: all XJ700 non-X models.

    HCP6296 Aftermarket Hitachi brass PILOT AIR JET #210, original size for all 1985-86 XJ700 air-cooled engines.
     
  4. hardtailed81/85xj700

    hardtailed81/85xj700 New Member

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    Thanks my man
    Helps alot
     
  5. XJ550H

    XJ550H Well-Known Member Premium Member

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    remeber this is stock jets for stock bike .
    do you have a stock bike ? no pods stock exhaust? is so your jets will/may be different for proper running
     
  6. hardtailed81/85xj700

    hardtailed81/85xj700 New Member

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    , post: 477824, member: 16564"]remeber this is stock jets for stock bike .
    do you have a stock bike ? no pods stock exhaust? is so your jets will/may be different for proper running[/QUOTE]
    No not stock Im going to have pods

    And right at the moment no muffler just straight pipes I needed a starting point for the jets I know il
     
  7. hardtailed81/85xj700

    hardtailed81/85xj700 New Member

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    Have to use the formula to get it right
    just curios you know the jet specs
    for an 81 xj650 maxim
     
  8. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    Towards the end of this page are all of the carb specs for every different model:

    http://www.xjbikes.com/forums/threads/in-the-church-of-clean.14692/

    Note that an HSC32 carb (XJ650 and XJ750 models) is not going to fit/work properly on an XJ700 model (which uses HSC33 series carbs). While it MIGHT (and even that is a big question mark) physically fit into an HSC33 carb rack, besides the jetting issues, there is the problem that it is a physically smaller (throat/venturi) carb and you'll never be able to synch and tune such a mis-matched rack of carbs.....
     
  9. hardtailed81/85xj700

    hardtailed81/85xj700 New Member

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    Ive looked but cant find the markings to determine which carb ive got for sure
    but yah that sucks if so
    I was hoping to useit
    it fit by swapping the two end pieces black adapter s
    from the 750 they curve inward slightly
     

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