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Needle and seat crossover numbers?

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  • Needle and seat crossover numbers?

    Greetings to those most knowlegable,

    I have dove head long into the carbs on the 79sf and so far the only parts needed for the rebuild are two worn needle valves and seats. I am going to replace the lot and start fresh.
    Took the advice I have read here about Mike's XS but am confused as to what the crossover numbers are for xs650 to xs1100.

    The seats I have look like the BS38 CV carbs on Mike's site but there are two sets there that look the same. Part numbers 48-5019 and #48-1429. I don't see any others that look similar to the needle and seats I pulled.

    I have hunted the forums for the correct numbers but have drawn a blank. Didn't want to Mike's and ask about parts for the 1100, having read here, about that it might be a tender subject.

    Just point me in the right direction if the numbers are already posted in the forums somwhere.

    I have been around this online group since late June and the wealth of practical knowledge here is astounding. Of course there is a corresponding ammount of BS, which my dad used to say, "Balances the world".

    Thanks much for any assist.

    Rodger
    RIP Whiskers (Shop Boss) 25+yrs

    "It doesn't hurt until you find out no one is looking"

    Everything on hold...

  • #2
    The Yamaha part number for the needle valve & seat assembly for your bike is 1J7-14190-20-00.
    Tim Ripley - Gaithersburg, MD
    1981 XS1100 Special "Spoiled Rotten" Just sold - currently bikeless!!
    23mm float height
    120 main jets
    42.5 pilot jets
    drilled stock airbox with K&N
    Jardine 4 to 1 Exhaust
    spade fusebox
    1st and 2nd gear fix

    Comment


    • #3
      float valves

      The info. you are requesting should be in this thread...

      http://xs11.com/forum/showthread.php...s+float+valves
      2H7 (79) owned since '89
      3H3 owned since '06

      "If it ain't broke, modify it"

      Comment


      • #4
        You can get them at this site for 12 bucks each and that includes a bowl gasket. It's the fourth one down. Part#48-1407
        Tim Ripley - Gaithersburg, MD
        1981 XS1100 Special "Spoiled Rotten" Just sold - currently bikeless!!
        23mm float height
        120 main jets
        42.5 pilot jets
        drilled stock airbox with K&N
        Jardine 4 to 1 Exhaust
        spade fusebox
        1st and 2nd gear fix

        Comment


        • #5
          Thank you for your direction. Helpful as always.

          Someday I'll learn the correct key words to hunt these down and quit bothering eveyone.
          Thanks again for the help.

          Rodger
          RIP Whiskers (Shop Boss) 25+yrs

          "It doesn't hurt until you find out no one is looking"

          Everything on hold...

          Comment

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