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    front wheel hop

    As I gain speed, the front of my bike starts to do a hopping motion, not uncontrollably, but definently noticable. Do I need to chage my fork oil?
    Last edited by Guest; 07-12-2010, 05:12 PM.

    #2
    What sort of speed are we talking?

    Comment


      #3
      I'm thinking fork oil in most any condition except solid should prevent bouncing of a wheel that is balanced and true. That said, if you don't know how old your fork oil is, it may need changed anyway.

      Of course, the wheel is balanced, right? It's the bike shown in your signature? Does the rim run true, or do you need to adjust the spokes?
      Dogma
      --
      O LORD, be gracious to me; heal me, for I have sinned against you! - David

      Skeptical scrutiny is the means, in both science and religion, by which deep insights can be winnowed from deep nonsense. - Carl Sagan

      --
      '80 GS850 GLT
      '80 GS1000 GT
      '01 ZRX1200R

      How to get a "What's New" feed without the Vortex, and without permanently quitting the Vortex

      Comment


        #4
        Originally posted by Dogma View Post
        I'm thinking fork oil in most any condition except solid should prevent bouncing of a wheel that is balanced and true. That said, if you don't know how old your fork oil is, it may need changed anyway.

        Of course, the wheel is balanced, right? It's the bike shown in your signature? Does the rim run true, or do you need to adjust the spokes?
        How would you balance a wheel? How would you adjust the spokes?
        Its at a low speed, no more than 35mph
        I should change the fork oil anyway, just worried if its something mechanical

        Comment


          #5
          Hi,

          Wobbling and hopping at that low of a speed sounds kind of scary.

          I always have my wheels/tires balanced when I get new tires mounted. The shop balances for free, lucky me.

          Or you can do it like Mr. brwringer does: Balancing Tires

          To true the wheel you'll need a spoke wrench and good eyeballs, adjusting each spoke until there is no wobble or hop in the rim and it is exactly straight and round.



          Click the picture above for more info on these tools. For a quick guide to spoke wheel straightening: http://www.ehow.com/how_5575718_stra...cycle-rim.html

          Thank you for your indulgence,

          BassCliff
          Last edited by Guest; 07-13-2010, 02:53 AM.

          Comment


            #6
            Edit:

            Cliff's simultaneous post is more informative than mine was...
            Last edited by Dogma; 07-12-2010, 06:57 PM.
            Dogma
            --
            O LORD, be gracious to me; heal me, for I have sinned against you! - David

            Skeptical scrutiny is the means, in both science and religion, by which deep insights can be winnowed from deep nonsense. - Carl Sagan

            --
            '80 GS850 GLT
            '80 GS1000 GT
            '01 ZRX1200R

            How to get a "What's New" feed without the Vortex, and without permanently quitting the Vortex

            Comment


              #7
              Not being sarcastic here , but if you have to ask how to adjust or balance a spoked wheel , take it to someone that specialises in this black art . It can take a bit of skill and can be easy to balls up .
              See if you can find someone willing to pass their knowledge on . Try a restorers club or British bike club . Those old buggers are usually only to keen to help out .
              Good luck .
              Cheers , Simon .
              http://i258.photobucket.com/albums/h...esMapSimon.jpg

              '79 GS1000S my daily ride in Aus

              '82 (x2) GS650ET in the shed

              Comment


                #8
                Damper Rod

                When you change the fork oil, be sure to diassemble and clean the damper rod. If the ports are plugged it won't work .
                sigpic
                1981 Suzuki GS750E (one owner), 1982 Suzuki GS750T (my "tinker" toy), Previous (First) Bike: 1979 GS425 (long gone)
                2002 Suzuki Bandit 1200S (new to me in 11/2011)

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