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DT125R FORUM

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  4. Clutch

Clutch

Scheduled Pinned Locked Moved Engine
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  • RickyR Ricky

    I put it all back in and the revs still die down when I pull the clutch in and when I put it in natural the engine vibrates where the clutch is

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #5

    @Ricky How bad is the vibration??

    As said the clutch is weighted and needs to be balanced properly.

    If the clutch is REALLY bad, then sounds like it hasn't been timed correctly with the balancer shaft.

    Has the engine been rebuilt?

    Remember, it is a two stroke, expect vibrations. Again it comes down to how bad.

    Could be lose engine mounts...

    Always Originate, Never Pirate!

    RickyR 1 Reply Last reply
    0
    • CalumC Calum

      @Ricky How bad is the vibration??

      As said the clutch is weighted and needs to be balanced properly.

      If the clutch is REALLY bad, then sounds like it hasn't been timed correctly with the balancer shaft.

      Has the engine been rebuilt?

      Remember, it is a two stroke, expect vibrations. Again it comes down to how bad.

      Could be lose engine mounts...

      RickyR Offline
      RickyR Offline
      Ricky
      wrote on last edited by
      #6

      @Calum it only happens when I put it in natural and let my clutch out as soon as I pull my clutch in it stops but then the revs die down its only started doing this since I put the new clutch in

      DT 125X

      CalumC 1 Reply Last reply
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      • RickyR Ricky

        @Calum it only happens when I put it in natural and let my clutch out as soon as I pull my clutch in it stops but then the revs die down its only started doing this since I put the new clutch in

        CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #7

        @Ricky And again to confirm, you definitely balanced the clutch properly as I described?

        The clutch springs the old ones? Are they within tolerance? Are they torqued appropriately.

        Always Originate, Never Pirate!

        RickyR 1 Reply Last reply
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        • CalumC Calum

          @Ricky And again to confirm, you definitely balanced the clutch properly as I described?

          The clutch springs the old ones? Are they within tolerance? Are they torqued appropriately.

          RickyR Offline
          RickyR Offline
          Ricky
          wrote on last edited by
          #8

          @Calum yeah I spaced the notches out on the metal plates evenly the springs are new this is the clutch i got http://m.ebay.co.uk/itm/EBC-DRC-COMPLETE-CLUTCH-KIT-FITS-YAMAHA-DT-125-X-2005-2006-/131742599793?nav=SEARCH

          DT 125X

          CalumC 1 Reply Last reply
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          • RickyR Ricky

            @Calum yeah I spaced the notches out on the metal plates evenly the springs are new this is the clutch i got http://m.ebay.co.uk/itm/EBC-DRC-COMPLETE-CLUTCH-KIT-FITS-YAMAHA-DT-125-X-2005-2006-/131742599793?nav=SEARCH

            CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #9

            @Ricky Don't really know what to suggest then.

            Could be worn primary drive bearings and pulling the clutch out exacerbates things.

            How many miles has the engine done, and has it ever been rebuilt?

            Always Originate, Never Pirate!

            RickyR 1 Reply Last reply
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            • CalumC Calum

              @Ricky Don't really know what to suggest then.

              Could be worn primary drive bearings and pulling the clutch out exacerbates things.

              How many miles has the engine done, and has it ever been rebuilt?

              RickyR Offline
              RickyR Offline
              Ricky
              wrote on last edited by
              #10

              @Calum it's done 20k not sure when it was rebuilt

              DT 125X

              CalumC 1 Reply Last reply
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              • RickyR Ricky

                @Calum it's done 20k not sure when it was rebuilt

                CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #11

                @Ricky Well if it's original internals then it could be knocking, which will mean it'll need a rebuild.

                if it's been rebuilt then it could be that it hasn't been assembled properly, and the engine hasn't been timed up properly. But the vibration when the engine isn't timed up is really bad!

                Always Originate, Never Pirate!

                RickyR 1 Reply Last reply
                0
                • CalumC Calum

                  @Ricky Well if it's original internals then it could be knocking, which will mean it'll need a rebuild.

                  if it's been rebuilt then it could be that it hasn't been assembled properly, and the engine hasn't been timed up properly. But the vibration when the engine isn't timed up is really bad!

                  RickyR Offline
                  RickyR Offline
                  Ricky
                  wrote on last edited by
                  #12

                  @Calum it's not that bad I don't think haha but it only started since i put the new clutch in

                  DT 125X

                  1 Reply Last reply
                  0
                  • MightymanM Offline
                    MightymanM Offline
                    Mightyman
                    wrote on last edited by
                    #13

                    2 stroke KTMs are renound for an unusual sound if you aren't holding the clutch in but what you are describing seems like more than just this..

                    TDR 125 - 2001

                    RickyR 1 Reply Last reply
                    0
                    • MightymanM Mightyman

                      2 stroke KTMs are renound for an unusual sound if you aren't holding the clutch in but what you are describing seems like more than just this..

                      RickyR Offline
                      RickyR Offline
                      Ricky
                      wrote on last edited by
                      #14

                      @Mightyman this never use to do till I changed the clutch

                      DT 125X

                      CalumC 1 Reply Last reply
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                      • RickyR Ricky

                        @Mightyman this never use to do till I changed the clutch

                        CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #15

                        @Ricky Probably just paranoai. You definitely got enough oil.in there yeah.

                        Always Originate, Never Pirate!

                        RickyR 1 Reply Last reply
                        0
                        • DartyD Offline
                          DartyD Offline
                          Darty
                          wrote on last edited by
                          #16

                          Go back in and check the torque on the nuts, is it noisy? like a continuous ticking sound? Clutch plates are slipping if the revs are dying, Re-adjust the clutch action on the clutch itself.

                          Mine did this once, but vibration suggests bearing, or loose plates, which seems unlikely.

                          Keep it real

                          RickyR 2 Replies Last reply
                          1
                          • CalumC Calum

                            @Ricky Probably just paranoai. You definitely got enough oil.in there yeah.

                            RickyR Offline
                            RickyR Offline
                            Ricky
                            wrote on last edited by
                            #17

                            @Calum haha something is different and yeah 750ml

                            DT 125X

                            1 Reply Last reply
                            0
                            • DartyD Darty

                              Go back in and check the torque on the nuts, is it noisy? like a continuous ticking sound? Clutch plates are slipping if the revs are dying, Re-adjust the clutch action on the clutch itself.

                              Mine did this once, but vibration suggests bearing, or loose plates, which seems unlikely.

                              RickyR Offline
                              RickyR Offline
                              Ricky
                              wrote on last edited by
                              #18

                              @Darty it's more like a thudding noise than a tapping

                              DT 125X

                              1 Reply Last reply
                              0
                              • DartyD Darty

                                Go back in and check the torque on the nuts, is it noisy? like a continuous ticking sound? Clutch plates are slipping if the revs are dying, Re-adjust the clutch action on the clutch itself.

                                Mine did this once, but vibration suggests bearing, or loose plates, which seems unlikely.

                                RickyR Offline
                                RickyR Offline
                                Ricky
                                wrote on last edited by
                                #19

                                @Darty the inner basket spins when I tighten the springs up I've got them tight

                                DT 125X

                                1 Reply Last reply
                                0
                                • RickyR Offline
                                  RickyR Offline
                                  Ricky
                                  wrote on last edited by Ricky
                                  #20

                                  What's the best way to put the metal plates in sharp side facing the engine or the smothered side I've been told it doesn't matter as long as there all the same way

                                  DT 125X

                                  1 Reply Last reply
                                  0
                                  • MightymanM Offline
                                    MightymanM Offline
                                    Mightyman
                                    wrote on last edited by
                                    #21

                                    Could be worth posting a video so we can hear the noise. Might be easier than describing it 😂

                                    TDR 125 - 2001

                                    RickyR 1 Reply Last reply
                                    0
                                    • MightymanM Mightyman

                                      Could be worth posting a video so we can hear the noise. Might be easier than describing it 😂

                                      RickyR Offline
                                      RickyR Offline
                                      Ricky
                                      wrote on last edited by
                                      #22

                                      @Mightyman good idea haha I'll do it later

                                      DT 125X

                                      1 Reply Last reply
                                      0
                                      • RickyR Offline
                                        RickyR Offline
                                        Ricky
                                        wrote on last edited by Ricky
                                        #23

                                        A video as promised please ignore the tapping lol
                                        https://youtu.be/BdgV44NU6D8

                                        DT 125X

                                        1 Reply Last reply
                                        0
                                        • CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #24

                                          So what's the tapping?

                                          The fact the idle goes down with the clutch in doesn't really bother me. I see that a lot, usually the thrust bearings going on the clutch, however we don't have those.

                                          What we do have is a primary drive bearing, which if it's on its way out, will vibrate and probably cause this sort of issue.

                                          With that sort of mileage on a two stroke, and an uncertainty of the engines age, I'd be stripping it down for a rebuild...

                                          I don't think we're going to diagnose it really.

                                          If it isn't what I've been suggesting then I really think it might just be an engine rebuild jobby, or paranoia.

                                          If it was really bad then you would know. Again it all comes back to how much vibration. If it's a lot, then it's for a reason. But two strokes rattle a lot anyway so it's really hard to tell.

                                          Always Originate, Never Pirate!

                                          RickyR 1 Reply Last reply
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