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    Stuck in 4th & 5th

    Posted this is General Maintenance, moving it here.
    Original thread.

    Things took a major turn for the worse today. Now I can only get 4th & 5th gears.

    I did some reading through old posts and will remove the clutch basket hoping to find a problem with the change paw bits.

    Feel free to chime in with suggestions.....
    -Mal

    "The only reason for time is so that everything doesn't happen at once." - B. Banzai
    ___________

    78 GS750E

    #2
    I am afraid I also would suspect a bent shifter fork.
    I replaced my transmission in my GPz by removing the engine, flipping it upside down and splitting the cases. Since I have read the engines are very similar, you may be able to do the same thing. Picked up the entire transmission off fleabay for cheap, took 2 days with help from a friend who is an excellent mechanic.
    Of course, I had so much practice removing and installing the engine it was a piece of cake.
    ebay example

    Comment


      #3
      Originally posted by koolaid_kid View Post
      I am afraid I also would suspect a bent shifter fork.
      I replaced my transmission in my GPz by removing the engine, flipping it upside down and splitting the cases. Since I have read the engines are very similar, you may be able to do the same thing. Picked up the entire transmission off fleabay for cheap, took 2 days with help from a friend who is an excellent mechanic.
      Of course, I had so much practice removing and installing the engine it was a piece of cake.
      ebay example
      Doh! here's hoping it isn't a bent fork. BTW the forks look as if they are cast alloy, if they are how can they bend?
      -Mal

      "The only reason for time is so that everything doesn't happen at once." - B. Banzai
      ___________

      78 GS750E

      Comment


        #4
        Definitely worth pulling off the clutch and having a look there before splitting the engine further. You might just have some gunk in there that's stopping the mechanism on the end of the gear shifting cam engaging properly. Plus when you do, drain and replace the oil with new. Sometimes that on its own works wonders.
        79 GS1000S
        79 GS1000S (another one)
        80 GSX750
        80 GS550
        80 CB650 cafe racer
        75 PC50 - the one with OHV and pedals...
        75 TS100 - being ridden (suicidally) by my father

        Comment


          #5
          Originally posted by hampshirehog View Post
          Definitely worth pulling off the clutch and having a look there before splitting the engine further. You might just have some gunk in there that's stopping the mechanism on the end of the gear shifting cam engaging properly. Plus when you do, drain and replace the oil with new. Sometimes that on its own works wonders.
          Cheers HH, fingers and toes are all crossed.
          -Mal

          "The only reason for time is so that everything doesn't happen at once." - B. Banzai
          ___________

          78 GS750E

          Comment


            #6
            Be sure and study up in removing and installing the clutch. IIRC, you need a special tool to install the clutch hub. And best of luck, hope it solves it.

            Comment


              #7
              Originally posted by koolaid_kid View Post
              Be sure and study up in removing and installing the clutch. IIRC, you need a special tool to install the clutch hub. And best of luck, hope it solves it.
              Yeah, I think that's right. I'll do some research.......
              -Mal

              "The only reason for time is so that everything doesn't happen at once." - B. Banzai
              ___________

              78 GS750E

              Comment


                #8
                The Suzuki & Clymer manuals say the tool is necessary, the Haynes manual says not so. I will find out this weekend.

                While I'm in there I will replace the oil pump o-rings. Is there anything similar I should take care of?
                -Mal

                "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                ___________

                78 GS750E

                Comment


                  #9
                  You can file the check marks off the splines and buff the glaze off the fiber plates. Some more assistance could be here: Clutch Odds and Ends

                  Comment


                    #10
                    Originally posted by koolaid_kid View Post
                    You can file the check marks off the splines and buff the glaze off the fiber plates. Some more assistance could be here: Clutch Odds and Ends
                    10-4 kk, thanks muchly.
                    -Mal

                    "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                    ___________

                    78 GS750E

                    Comment


                      #11
                      Took the clutch out tonight and thought I'd upload a snap of the paw. I've not been in here before so I'm not sure how it should look when stuck in 4th gear but methinks it's not right. Any comments?

                      -Mal

                      "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                      ___________

                      78 GS750E

                      Comment


                        #12
                        Originally posted by allojohn View Post
                        Took the clutch out tonight and thought I'd upload a snap of the paw. I've not been in here before so I'm not sure how it should look when stuck in 4th gear but methinks it's not right. Any comments?

                        looking at the picture it looks like the centering spring may be broken. In the picture directly above the arm with the pin in the center , it looks like the spring is broken. I have seen this before.
                        1984 GS1100GK newest addition to the heard
                        80 GS 1000gt- most favorite ride love this bike
                        1978 GS1000E- Known as "RoadKill" , Finished :D
                        83 gs750ed- first new purchase
                        85 EX500- vintage track weapon
                        1958Ducati 98 Tourismo
                        “Remember When in doubt use full throttle, It may not improve the situation ,but it will end the suspense ,
                        If it isn't going to make it faster or safer it isn't worth doing

                        Comment


                          #13
                          Originally posted by hjfisk View Post
                          looking at the picture it looks like the centering spring may be broken. In the picture directly above the arm with the pin in the center , it looks like the spring is broken. I have seen this before.
                          Man that will be good news, I hope you're right.
                          -Mal

                          "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                          ___________

                          78 GS750E

                          Comment


                            #14
                            I agree, that does not look right at all. On a positive note, I looked at the parts fiche for all those parts and they all appear to be external to the engine case. Unfortunately, some are discontinued, so you will probably have to go eBay shopping or ask here at GSR.
                            I have never disassembled those parts before, so I don't know how to suggest the next move. Hopefully someone on here knows. I will PM someone I know and ask him to have a look as to how to proceed, he may know what to do.

                            Comment


                              #15
                              I pulled the the gear shift shaft out and took the spring off - it's good. Reassembled and aligned the paw on the gear shifter. Everything works fine now. I can move up and down the gears at will - smooth as silk.

                              Is this significant, or am I fooling myself? I haven't fixed anything so the problem will still be there, right?

                              I'll put it all back together and ride it to see what happens.
                              -Mal

                              "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                              ___________

                              78 GS750E

                              Comment

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