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  • #1

    Front wheel bouncing

    I was wondering if anyone has ever experienced the front tire/wheel bouncing, not wobbling, but bouncing at speeds around 80. It does it around 60 and 70 but you don't really notice it til around 80. And it's not just on one certain road.

    Thank you in advance.
    USMC 2005 - Present

    79 XS1100F -Mileage unknown - Clubman bars, aftermarket headlight and speedometer, 4 into 1 straight through exhaust, TopCat's fuse box, 1980G rear fender - Daily driver - My first Motorcycle
    78 XS1100E - Rebuilt And Sold I SHOULD OF KEPT IT!!!
    Tags: None
  • #2
    new tire? old tire? just started having this problem?
    Don
    1979 XS1100SF "Old Man" bought by my Dad brand new in 79, customized in 80 with Vetter, Standard tank, and touring seat. I inherited in 02 when Dad passed. Been riding it since 09. No resto, bike is a survivor...

    2007 RoadStar 1700 Midnight Silverado "The Black Pearl" Cobra Slash-downs, K&N filter. More mods to come


    old:
    1989 kawi ex500
    1996 yzf-r6
    1999 yzf-r1
    2001 kawi zx-6r
    2000 Ducati 748
    2002 YZF-R1
    2005 V-Star 1100 Classic

    Comment

    • #3
      Tire

      The tire is most likly way out of balance or out of round. Also the front shocks / forks may not be working properly, Oil. seals valving. many reasons for them not working right. I would change the fork oil and check the tire for round and balance 1st
      1979 XS1100 Special (Mad Max, OEM) Current
      1980 XS1100 Special
      1990 V Max
      1982 KZ750 LTD Twin
      1986 700 FZR Yamaha Fazer (faster then expected)
      1979 XS750 Special (my 1st Special)
      1974 CB750-Four



      Past/pres Car's
      1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

      Comment

      • #4
        I had a front tire seperate on a Toy run. It started with a bounce for a while then it got so I could not even ride it over 30Mph.
        The whole Toy Run slowed down and escorted me into town. Some then went as far as to ride me all the way home after too. It was a cool experience.
        Well back to the reason for the post...Check, recheck and check again the whole front end and tire. It could make all the difference.
        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!

        Comment

        • #5
          last time I had 1 bounce I pulled into the gas station and checked the air... had about 5 lbs in it oops!
          Don
          1979 XS1100SF "Old Man" bought by my Dad brand new in 79, customized in 80 with Vetter, Standard tank, and touring seat. I inherited in 02 when Dad passed. Been riding it since 09. No resto, bike is a survivor...

          2007 RoadStar 1700 Midnight Silverado "The Black Pearl" Cobra Slash-downs, K&N filter. More mods to come


          old:
          1989 kawi ex500
          1996 yzf-r6
          1999 yzf-r1
          2001 kawi zx-6r
          2000 Ducati 748
          2002 YZF-R1
          2005 V-Star 1100 Classic

          Comment

          • #6
            Maintenance

            From my own experience with the 80 SG I bought a few months ago (and which looked very good cosmetically), many of the original and second,third, etc. owners do or did very little regular maintenance on these vehicles. From the neck bearings to the rear gear box mine looked like it had seen zero regular maintenance once I got into it. I would recommend that you check everything. Right now you are concerned about wheel hop which could be anything from a tire that's coming apart to no damping in the front fork. If I were you, I'd get new tires, drain and refill the front shocks, check spring lenght etc. If, in fact it does have oil in the shocks but isn't leaking, your seals are probably OK. Then, check everything for signs of maintenance/do all the required maintenance and you'll feel better and know you are not adding insult to injury when it comes to the normal wear and tear on your bike. If you don't already have a manual get one, either on here or from the net. You'll be glad you did and have many answers at your finger tips
            Can't beat the smell of gas & oil

            Comment

            • #7
              I had a tire (the first tire I ever put on the front of my XS) that would bounce right at 70mph. I don't ride the freeway all that much so I didn't notice it very often, but it made long trips unbearable. It actually rattled the knobs off the radio in my fairing! I lifted the front wheel off the ground, and held it stable, then, looking just over the surface, I spun it slowly and could see a "fat" spot on it. Took it back to the place I bought it over a year afterward, and they replaced it for free - including installation. No problems with the replacement.
              1980 XS850SG - Sold
              1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
              Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
              Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

              Whether you think you can, or you think you cannot - You're right.
              -H. Ford

              Comment

              • #8
                Their old tires and I just replaced the oil and seals in the forks a few months ago. I am buying tires later this month anyways because the back tire is so word you can see the cord/thread in the tire so I can't even drive it anyone til I get some new tires. I will see if that fixes it but if not I will try the other stuff
                USMC 2005 - Present

                79 XS1100F -Mileage unknown - Clubman bars, aftermarket headlight and speedometer, 4 into 1 straight through exhaust, TopCat's fuse box, 1980G rear fender - Daily driver - My first Motorcycle
                78 XS1100E - Rebuilt And Sold I SHOULD OF KEPT IT!!!

                Comment

                • #9
                  Tires

                  With tires like that, 99% sure you will fix your hopp with new "balanced" one's, good luck with your bike


                  Originally posted by mmaddix View Post
                  Their old tires and I just replaced the oil and seals in the forks a few months ago. I am buying tires later this month anyways because the back tire is so word you can see the cord/thread in the tire so I can't even drive it anyone til I get some new tires. I will see if that fixes it but if not I will try the other stuff
                  1979 XS1100 Special (Mad Max, OEM) Current
                  1980 XS1100 Special
                  1990 V Max
                  1982 KZ750 LTD Twin
                  1986 700 FZR Yamaha Fazer (faster then expected)
                  1979 XS750 Special (my 1st Special)
                  1974 CB750-Four



                  Past/pres Car's
                  1961 Catalina 389/1970 Torino GT 351/1967GTO 12to1 comp./ Roller cam/ T-10/ 456 gear/Tri-power/1967 GTO 400, 1969 Camaro, 1968 Z28, 2001 BMW M Roadster 0 to 60 in 4.5 sec. Jaguar XK8

                  Comment

                  • #10
                    Fabric showing? Bouncing? Park that thing until you get some new tires.
                    Marty (in Mississippi)
                    XS1100SG
                    XS650SK
                    XS650SH
                    XS650G
                    XS6502F
                    XS650E

                    Comment

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