Bent Shift Forks

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  • GL1800 (Any Year): Bent Shift Forks

    What causes Bent shift forks? '06 GL 1800 55 thousand Mi. Developed loud rattling noise. I thought it was the clutch basket. Took it to the Honda shop and they removed the eng and tore the trans apart. I stopped there the other day and the mech showed me the shift forks. One was worn very bad, one had some wear and one very little wear. The mech said that is what happens with bent forks. What caused that and how do I prevent it???

  • #2
    Personal opinion, but I suspect the hardness of the forks. Probably defect from the factory, but don't expect Honda to ever own up to that. Some will say H/T shifters but some motorcycles come from the factory with them and absolutely no problems. I guess the one thing not to do is to force a M/ C tranny into gear. That would be a big no-no. The rest is a guess.
    2007 Crucible Orange Metallic
    2009 Kawasaki Red Concours 14
    AMA Life Member 0672853
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    NRA Life Member

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    • TrikeBiker
      TrikeBiker commented
      Editing a comment
      No heel toe shifter

  • #3
    My guess would be the good ole factory defect.
    2007 Crucible Orange Metallic
    2009 Kawasaki Red Concours 14
    AMA Life Member 0672853
    IBA Member 8846 Premier
    NRA Life Member

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    • #4
      Send Rocky a PM.
      Richard
      Darksider #390
      Murgie's FAQ

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      • #5
        Did your bike have a tendency to jump out of gear? My 03 did that and eventually bent the 4th/5th gear shift fork.

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        • #6
          Did the shop say how long it will take before they get it back together?
          2007 Crucible Orange Metallic
          2009 Kawasaki Red Concours 14
          AMA Life Member 0672853
          IBA Member 8846 Premier
          NRA Life Member

          Comment: (For off-topic replies)


          • TrikeBiker
            TrikeBiker commented
            Editing a comment
            They were to start reassembly last Monday. Didn't say how long it would take but i am not in a big hurry because I had knee surgery 2 wk ago.

          • orangecrate
            orangecrate commented
            Editing a comment
            I wish you a speedy recovery on both the knees and, of course, the bike! BTW, I use a short shifter. Takes a little getting user to, but shorter throw makes it nice.

        • #7
          Originally posted by TrikeBiker View Post
          What causes Bent shift forks? '06 GL 1800 55 thousand Mi. Developed loud rattling noise. I thought it was the clutch basket. Took it to the Honda shop and they removed the eng and tore the trans apart. I stopped there the other day and the mech showed me the shift forks. One was worn very bad, one had some wear and one very little wear. The mech said that is what happens with bent forks. What caused that and how do I prevent it???

          Gears not fully engaging is the only thing that will damage shifter forks as the gears try and disengage from each other. the result is the weaker/thinner metal of the fork gets slightly bent. in time this adds up to where you are at now. a bad transmission that won't shift properly.


          You asked how can you stop a repeat of this problem? realistically-you can't per say.
          Because these bikes are mechanical and mechanical things can and do break for a number of reasons. defective heat treatment can be one of them among others..

          So how can you increase your chances of a more positive shift each time?

          A member on another board made an adjustment to or shifters. Deano improved the shifter travel by 1/4 inch. by drilling a new hole 1/4 down on the shifter pawl arm.

          This in turn made you move your foot less to get a more positive shift each time by way of less distance your ankle had to move the shifter. ( just you did when younger by adding a Hurst shifter to and old car-you got a more positive action and shift)
          Deano's idea still used the OEM hyme joint that was very loose fitting on it's pivots. I found that unexceptable,knowing there was a better joint system out there.

          What was disappointing to me also was that this idea dropped the shifter height by that same 1/4 inch.
          I didn't want my toe dragging any lower when I was leaned over on the left making a corner.



          So-Not being one to leave well enough alone. I took Deano's idea and improved on it some more.

          I found a Stainless Steel adjustable Teflon lined self cleaning joint kit that not only improves the shifting. But it's now adjustable.
          You can now set the height to the OEM shifter height. Or you can adjust it's height if you want to, or have bigger than normal feet/boots.

          My partner sells the kit for the DIY guys or offers an exchange for a few bucks more if you don't want to mess with it?.. (it's faster to just measure/mark and swap it out too-lol)

          Scroll down for the shifter kit here- http://www.dhsracing.com/GL-1800.htm

          Watch the two videos I made of the OEM sloppy joints and of the new kit.

          What the kit does is take the sloppy oem joints out of the equation,
          which makes each shift more positive with less effort,
          which also gives you the rider some adjustability now.



          What makes me mad is. Why do I have to come up with these improvement that Honda should of done at the factory!!


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          • TrikeBiker
            TrikeBiker commented
            Editing a comment
            Thanks Rocky. I am going to check out that shifter.

          • Matt Caswell
            Matt Caswell commented
            Editing a comment
            Rocky.. I've missed your posts since you got booted from Gulag 1800.. Glad to see you and some others here!
            matt

          • srt8-in-largo
            srt8-in-largo commented
            Editing a comment
            Some badass stuff available in that link... diggin it.

        • #8
          Thanks Rocky. I enjoy reading your posts.
          Richard
          Darksider #390
          Murgie's FAQ

          Comment: (For off-topic replies)


          • #9
            I completely endorse the Short Shift Kit sold D H S
            I would suggest that you put it on as soon as you get your Scoot back
            You will be amazed at the difference in shifting and doubt you will ever have another tranny problem

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            • #10
              Originally posted by bobbsmith View Post
              I completely endorse the Short Shift Kit sold D H S
              I would suggest that you put it on as soon as you get your Scoot back
              You will be amazed at the difference in shifting and doubt you will ever have another tranny problem
              Are we being a little sarcastic bobbsmith?
              Richard
              Darksider #390
              Murgie's FAQ

              Comment: (For off-topic replies)

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