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DT125R FORUM

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  4. Clutch

Clutch

Scheduled Pinned Locked Moved Engine
67 Posts 7 Posters 15.0k Views 2 Watching
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  • 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
    0
    • 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
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              • 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
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                  • 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
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                              • 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

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                                • 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

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                                      • 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
                                        0
                                        • CalumC Calum

                                          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.

                                          RickyR Offline
                                          RickyR Offline
                                          Ricky
                                          wrote on last edited by
                                          #25

                                          @Calum the vibration isn't that bad it's the clutch problem it nearly dies when it's in gear and I pull the clutch in like when I'm at lights waiting to go

                                          DT 125X

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