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DT125R FORUM

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  4. Yamaha dt 125 clutch making a noise

Yamaha dt 125 clutch making a noise

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yamaha dt 125r
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  • CalumC Calum

    @Tristan The oil can go really grey when the water pump impeller seal goes and coolant leaks into the crank cases.

    Open up the radiator cap and see if there is any oil in the coolant.

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    Tristan
    wrote on last edited by
    #5

    @Calum yes I checked that already and I checked the impella aswell and its working fine, I got a feeling it could be maybe a bearing but again I'm not 100% sure

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    • T Tristan

      @Calum yes I checked that already and I checked the impella aswell and its working fine, I got a feeling it could be maybe a bearing but again I'm not 100% sure

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      SpookDog
      wrote on last edited by SpookDog
      #6

      @Tristan
      A bearing wouldn’t sound loose. Have you checked the nuts on the crank gear, balancer shaft and clutch? These are the only ones that spin and have tightening nuts on them (I think!)...

      Does the noise change when you pull in the clutch lever? Or when you cycle through the gears?...

      Looked at the magneto side?...

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      • S SpookDog

        @Tristan
        A bearing wouldn’t sound loose. Have you checked the nuts on the crank gear, balancer shaft and clutch? These are the only ones that spin and have tightening nuts on them (I think!)...

        Does the noise change when you pull in the clutch lever? Or when you cycle through the gears?...

        Looked at the magneto side?...

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        Tristan
        wrote on last edited by
        #7

        @SpookDog no it's a constant noise wether I pull the clutch in or not or wether I'm in gear or not obviously just can't hear it while I'm riding cause of the higher revs but when it idles or I stop at a red light it makes the noise I really can't figure it out another guy today told me that it's normal for a dt but it's weird that it only came after a month after I rebuilt it, it was quiet few days ago

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        • T Tristan

          @SpookDog no it's a constant noise wether I pull the clutch in or not or wether I'm in gear or not obviously just can't hear it while I'm riding cause of the higher revs but when it idles or I stop at a red light it makes the noise I really can't figure it out another guy today told me that it's normal for a dt but it's weird that it only came after a month after I rebuilt it, it was quiet few days ago

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          SpookDog
          wrote on last edited by
          #8

          @Tristan

          Take a video of it, post it on YouTube then give us a link so we can listen in, bud...
          Really need to hear exactly what you mean...

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          • S SpookDog

            @Tristan

            Take a video of it, post it on YouTube then give us a link so we can listen in, bud...
            Really need to hear exactly what you mean...

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            Tristan
            wrote on last edited by
            #9

            @SpookDog okay cool I'll get to that tomorrow some time but how exactly do I post it so you guys can see?

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            • T Tristan

              Hi all, I have a old yamaha dt 125r 1983 that I rebuilt and converted to motard but I have only been riding it for a month with no problems till the other day I heard my clutch is making a bad noise almost like something is lose but when I opened my clutch I saw everything was fine besides my notched basket, could it be that the clutch is run in? I don't think it could be but some people said it's possible, just really annoying when I idle the bike it has that lose noise but it hasn't done anything to the power or problem starting, everything seems right and works fine it's just it has that noise
              Any advice or help will be greatly appreciated thanks in advance😁
              Tristan.

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              Tristan
              wrote on last edited by
              #10
              This post is deleted!
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              • T Tristan

                @SpookDog okay cool I'll get to that tomorrow some time but how exactly do I post it so you guys can see?

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                Tristan
                wrote on last edited by
                #11

                @Tristan hey guys I'm sending the link through now with my bike idling and the noise, would be greatly appreciated if you guys could take a listen and let me know what you think

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                • T Tristan

                  @Tristan hey guys I'm sending the link through now with my bike idling and the noise, would be greatly appreciated if you guys could take a listen and let me know what you think

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                  Tristan
                  wrote on last edited by
                  #12

                  @Tristan https://youtu.be/-ENCb-6bnCY

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                  • T Tristan

                    @Tristan https://youtu.be/-ENCb-6bnCY

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                    SpookDog
                    wrote on last edited by SpookDog
                    #13

                    @Tristan
                    Mine sounded like that when the piston was slapping. I don’t think that’s the case with yours, as yours still clicks as it dies. If your noise came on suddenly then it might be kick start related. Try moving the kickstart down a bit while the engine is running. Be careful though, please!! See if it alters the sound...
                    I can’t remember the ins and outs of the mechanism how the kickstart engages at the mo. I’ll look into it...

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                    • T Tristan

                      @Tristan https://youtu.be/-ENCb-6bnCY

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                      SpookDog
                      wrote on last edited by SpookDog
                      #14

                      @Tristan
                      Yeah, from what I can hear (I think!) it sounds like the noise an engine makes when you kick it over and hold the starter down. It’s hard to tell from a phone speaker...

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                      • S SpookDog

                        @Tristan
                        Mine sounded like that when the piston was slapping. I don’t think that’s the case with yours, as yours still clicks as it dies. If your noise came on suddenly then it might be kick start related. Try moving the kickstart down a bit while the engine is running. Be careful though, please!! See if it alters the sound...
                        I can’t remember the ins and outs of the mechanism how the kickstart engages at the mo. I’ll look into it...

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                        Tristan
                        wrote on last edited by
                        #15

                        @SpookDog I really appreciate the time thank you, my one mate says he thinks it's something to do with waterpump but the impella still works and seems fine

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                        • CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #16

                          Definitely needs investigating that. Sounds like some gear rubbing on the housing.

                          Always Originate, Never Pirate!

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                          • CalumC Calum

                            Definitely needs investigating that. Sounds like some gear rubbing on the housing.

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                            Tristan
                            wrote on last edited by
                            #17

                            @Calum but the noise is literally only coming from the clutch side, my guess is it's either something to do with the waterpump or even the flywheel, I'll put the cover off tomorrow and check the flywheel, I know on my mates husky hes flywheel key broke and it made a similar noise but I'll definitely get back to you guys as soon as I know something, really appreciate the time guys thank you🙏😁

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                            • T Tristan

                              @Calum but the noise is literally only coming from the clutch side, my guess is it's either something to do with the waterpump or even the flywheel, I'll put the cover off tomorrow and check the flywheel, I know on my mates husky hes flywheel key broke and it made a similar noise but I'll definitely get back to you guys as soon as I know something, really appreciate the time guys thank you🙏😁

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                              SpookDog
                              wrote on last edited by
                              #18

                              @Tristan
                              Dude, check the throw-out cog on the kickstart shaft. It sounds like it’s not disengaging properly...

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                              • S SpookDog

                                @Tristan
                                Dude, check the throw-out cog on the kickstart shaft. It sounds like it’s not disengaging properly...

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                                Tristan
                                wrote on last edited by
                                #19

                                @SpookDog I actually turned the Kickstarter while the bike was idling and normally it would make a noise but it didn't so I actually do think it might be that,I'll get a new gasket and pull the casing off to check the Kickstart shot man

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                                • T Tristan

                                  @SpookDog I actually turned the Kickstarter while the bike was idling and normally it would make a noise but it didn't so I actually do think it might be that,I'll get a new gasket and pull the casing off to check the Kickstart shot man

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                                  SpookDog
                                  wrote on last edited by SpookDog
                                  #20

                                  @Tristan
                                  Sweet , it’s definitely that, keep us informed. I like to know when things actually work out...

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                                  • S SpookDog

                                    @Tristan
                                    Sweet , it’s definitely that, keep us informed. I like to know when things actually work out...

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                                    Tristan
                                    wrote on last edited by
                                    #21

                                    @SpookDog will definitely keep you posted, yes I'm also sure it's that just gotta take a look at it the weekend, it shouldn't damage anything right? Just for 2 days I need to use the bike for work so it needs to wait till Saturday

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                                    • CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #22

                                      I wouldn't ride it with that sound.

                                      And LC engines have got to be hard to come by now surely.

                                      Always Originate, Never Pirate!

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                                      • S SpookDog

                                        @Tristan
                                        Sweet , it’s definitely that, keep us informed. I like to know when things actually work out...

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                                        Tristan
                                        wrote on last edited by
                                        #23

                                        @SpookDog hey man, I checked the Kickstart everything still good on it and cleaned it up but the noise is still there😢

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                                        • CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #24

                                          Definitely sounds like something (a gear cog) is rubbing somewhere.

                                          And there was nothing untoward about the engine? Nothing was lose inside? No metal filings in the oil?

                                          Always Originate, Never Pirate!

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