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  • Kerker Header

    B] Just picked up a nice 79 XS1100 special, was setting a while, so I sat down and disasembled the carbs for cleaning, got the thing all back together, stuck on some pod filters and put in a new battery and it fired right up. after a little while it was running great, so I took it for a ride, the thing pulls great up to about 5000, but anything after that it wants to sputter, its got a kerker header on it and I noticed that one of the header pipes (second from the left) is smashed on the bottom, it looks like it's closed about 60%, would that have anything to do with it cutting out after about 4 to 5 grand ?
    Before you criticize someone, you should walk a mile in their
    shoes. That way, when you criticize them, you're a mile away
    and you have their shoes.

  • #2
    Hey there Dean,

    Welcome to the FORUM. Glad you aren't shy about diving in and working on these beasts! The carbs scare most folks! The key item you mentioned about the work you did was that you put on "POD FILTERS" ! ! There are some out there that have a prominent lip around where they mount onto the carbs, and they actually restrict the air flow thru the vents and ports in the inlet bell!

    Take them off and do a quick run and see how it behaves! IF it easily goes over 5K....should run up to 8+ with NO hesitation, then you know that the filters are the culprits! Some folks have trimmed the lip back a bit to unrestrict the airflow, and so they could keep their filters!?

    IF it still falls flat on it's face with the pod filters off, then further investigation of the carbs may be in order!? I don't think the partially crimped pipe would have that much affect on it!
    T.C.
    T. C. Gresham
    81SH "Godzilla" . . .1179cc super-rat.
    79SF "The Teacher" . . .basket case!
    History shows again and again,
    How nature points out the folly of men!

    Comment


    • #3
      Thanks T.C. !!

      I just picked (stole) this bike up last week for $250.
      Hell of a deal, has a new tank, cosmeticly I would give it a good 8 on a 1-10. Previous owner said it had an electrical problem and it wouldn't start, I cleaned the plugs turned it over and it fired. the problem was filthy carbs. It has a few minor issues, like a sticky rear caliper, and a leaky cam chain tensioner, but I'll get to those next.
      Thanks again, I'm sure will talk again
      Dean
      Before you criticize someone, you should walk a mile in their
      shoes. That way, when you criticize them, you're a mile away
      and you have their shoes.

      Comment


      • #4
        jett time

        go to a 135.0 main jett,also find a tiny washer that will fit under the needle ,to raise it(xj's don't have adjustable needles like the xs's do ) you will be able to go all the way to the end of the tach with this set up.
        1982 XJ 1100
        going strong after 60,000 miles

        The new and not yet improved TRIXY
        now in the stable. 1982 xj11, 18,000miles

        Comment


        • #5
          Jetting

          Are you talking about the XJ or the XS, I have the XS (79)
          Before you criticize someone, you should walk a mile in their
          shoes. That way, when you criticize them, you're a mile away
          and you have their shoes.

          Comment


          • #6
            sorry

            was speaking of xj sorry. must get glasses soon..thought i saw xj....ooopppsssneedless to say you opened up the air side of it so you will need more fuel to compensate.
            1982 XJ 1100
            going strong after 60,000 miles

            The new and not yet improved TRIXY
            now in the stable. 1982 xj11, 18,000miles

            Comment


            • #7
              Thanks Man!, where in Illinois are you located, I grew up in aurora Ill, but now live in Ky.
              Thanks
              Before you criticize someone, you should walk a mile in their
              shoes. That way, when you criticize them, you're a mile away
              and you have their shoes.

              Comment


              • #8
                ky? Where, I am in Jeffersonville IN, on the other side of the river from louisville.
                Travis Miller
                1978 E

                Comment


                • #9
                  Paducah..right under Illinois
                  Before you criticize someone, you should walk a mile in their
                  shoes. That way, when you criticize them, you're a mile away
                  and you have their shoes.

                  Comment


                  • #10
                    yea, heard of it, never been there though.
                    Travis Miller
                    1978 E

                    Comment

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