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Hello Everyone !!:) Could someone help me with an answer ?

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  • #1

    Hello Everyone !!:) Could someone help me with an answer ?

    I have a 1979 XS 11000 special. , The problem is a serious sounding, loud noise/s coming from what seems like the right side if your sitting on the bike. It sounds like a blender full of nuts and bolts being run..

    It doesn't do it all the time, it mostly happens at about 1500 to 5000 RPM and then it just stops, until you switch gears and start to accelerate in the next gear.

    Well, I hope someone here can point me in the proper direciton get this fixed..

    Thank you

    Johnny V...
    Tags: None
  • #2
    You likely have the vacuum hose coming from the ignition advance (behind that cover) hooked to the wrong spot. It belongs on the #2 carb (motor side has a nipple), not the nipple on the black rubber intake boots. If it is hooked to the rubber intake boot it will pulsate hard at low rpm and sound bad. Just move the vacuum line and plug the rubber nipple on the intakr boot if you dont need it o run your vacuum operated fuel valve.
    '79 XS11 F
    Stock except K&N

    '79 XS11 SF
    Stock, no title.

    '84 Chevy K-10 "Big Blue"
    GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

    "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

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    • #3
      Your OTHER right, Wade.

      Alternator or clutch, take your pick and open the hatch.
      If you open the clutch, park the bike on the side stand, with the stand down in a deprssion, and the oil won't run out.
      If you open the alternator, don't remove the three centermost screws. They hold the coil pack to the cover.
      And Marshy has a good idea, you should check the advance mechanism for free play while your checking things.
      Let us know what you find.

      CZ

      Comment

      • #4
        So loud so early on a monday morning...

        John
        John is in an anonymous city with an Alamo (N29.519227,W-98.678980)

        Go ahead, click on the bikes - you know you want to...the electrons are ready.
        '81 XS1100H - "Enterprise"
        Bob Jones Custom Navy bike: Tkat brace, EBC floating rotors & SS lines, ROX pivot risers, Geezer rectifier, new 3H3 engine

        "Not all treasure is silver and gold"

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        • #5
          Originally posted by jwhughes3 View Post
          So loud so early on a monday morning...

          John
          +1 Made me jump; thank God for dark coffee.
          Bone stock 1980 Special except for the exhaust and crashbars. Oh yeah, and the scabbard for the Winchester Defender.

          Comment

          • #6
            Originally posted by webman64 View Post
            I have a 1979 XS 11000 special. , The problem is a serious sounding, loud noise/s coming from what seems like the right side if your sitting on the bike. It sounds like a blender full of nuts and bolts being run..

            It doesn't do it all the time, it mostly happens at about 1500 to 5000 RPM and then it just stops, until you switch gears and start to accelerate in the next gear.

            Well, I hope someone here can point me in the proper direciton get this fixed..

            Thank you

            Johnny V...

            The right side has the clutch and the alternator however if it's charging properly and the clutch is working right who knows.

            The noise you speak of is idicative of a cam chain out of adjustment. See if you can narrow down the location a bit closer than just the left side.

            Will it do it when you run through the gears on the center stand?
            Greg

            Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

            ― Albert Einstein

            80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

            The list changes.

            Comment

            • #7
              Sounds like a second gear issue to me. Right side, Blender full of nuts and bolts, and most importantly happens at about 1500 to 5000 RPM and then it just stops, until you switch gears and start to accelerate in the next gear. I would check it out a bit.
              2-79 XS1100 SF
              2-78 XS1100 E Best bike Ever
              80 XS 1100 SG Big bore kit but not fully running yet.
              Couple of more parts bikes of which 2 more will live!

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              • #8
                Oh, and don't run the engine with the alternator cover off, it will spit out ALL of the oil
                Former owner, but I have NO PARTS LEFT!

                Comment

                • #9
                  Engine Parts Noise

                  Hi Greg,

                  I was driving it yesterday, it happens alot when you let off the throttle, but also after you get to about 1500 rpms till like 4000 same gear, then it just stops. lol

                  Havent had a chance to get the side cover off yet, hoping to sometime lat er this evening.

                  Will let you know what I find asap !!

                  Thanks again ~

                  John V

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