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DT125R FORUM

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  3. Pv adjustment help

Pv adjustment help

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  • declanD declan

    @Calum When it was lined up with the hole it was sticking out a fair bit in the exhaust port roughly half inch

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

    @declan Nah, it should be flush with the port bud.

    Always Originate, Never Pirate!

    declanD 1 Reply Last reply
    0
    • CalumC Calum

      @declan Nah, it should be flush with the port bud.

      declanD Offline
      declanD Offline
      declan
      wrote on last edited by
      #10

      @calum it’s lined up nicely now mate

      CalumC 1 Reply Last reply
      0
      • declanD declan

        @calum it’s lined up nicely now mate

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

        @declan Cool, so with that being the case, if it's still not reving past 8K, you now at least now it's not the PV. To test that properly. Let the PV line with the port, then disconnect the servo. It should red line unless there is another underlying issue.

        Always Originate, Never Pirate!

        declanD 1 Reply Last reply
        1
        • CalumC Calum

          @declan Cool, so with that being the case, if it's still not reving past 8K, you now at least now it's not the PV. To test that properly. Let the PV line with the port, then disconnect the servo. It should red line unless there is another underlying issue.

          declanD Offline
          declanD Offline
          declan
          wrote on last edited by
          #12

          @calum okay Calum thanks again bud

          1 Reply Last reply
          0
          • SpannersS Offline
            SpannersS Offline
            Spanners
            wrote on last edited by
            #13

            Hi All........
            Remember when l first joined the forum and said there would be some stupid questions.
            As you all know l have been making good my DT 125 and today l actually was able to take her for a spin.
            Now l have no doubt that the PV is doing something but when it come in it feels like you are clutching it?
            It is wild, at 6000rpm all hell breaks loose, but it just feels like it is not operating properly.
            I hope l explain it properly, it’s not a rush of power more like your dipping the clutch to create more RPM’s?
            Any ideas, is it too a set up issue?
            Sounds stupid but how should it feel? 🤣

            CalumC 1 Reply Last reply
            0
            • F Offline
              F Offline
              finnerz89
              wrote on last edited by finnerz89
              #14

              @Spanners Are you sure your clutch isn't just slipping?

              Current bikes:
              DT125X '07
              Street Triple R '11
              Aprilia ETV1000 '02

              Previous:
              DR650RSE '96
              FJ1200 '92

              SpannersS 1 Reply Last reply
              1
              • SpannersS Spanners

                Hi All........
                Remember when l first joined the forum and said there would be some stupid questions.
                As you all know l have been making good my DT 125 and today l actually was able to take her for a spin.
                Now l have no doubt that the PV is doing something but when it come in it feels like you are clutching it?
                It is wild, at 6000rpm all hell breaks loose, but it just feels like it is not operating properly.
                I hope l explain it properly, it’s not a rush of power more like your dipping the clutch to create more RPM’s?
                Any ideas, is it too a set up issue?
                Sounds stupid but how should it feel? 🤣

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

                @spanners Sounds like either the chain, or the clutch is slipping.

                I had a mate with a 2001 DTR said the same thing to me, didn't realise the chain was spinning on the front cog believe it or not. I took it for one spin up the road and was like F me mate that is deadly. If it slips and coils up Bye Bye engine as the chain smashes the crank case together.

                If you've put Castrol Magnetec oil in the gearbox, the clutch will slip.

                Always Originate, Never Pirate!

                SpannersS 1 Reply Last reply
                0
                • CalumC Calum

                  @spanners Sounds like either the chain, or the clutch is slipping.

                  I had a mate with a 2001 DTR said the same thing to me, didn't realise the chain was spinning on the front cog believe it or not. I took it for one spin up the road and was like F me mate that is deadly. If it slips and coils up Bye Bye engine as the chain smashes the crank case together.

                  If you've put Castrol Magnetec oil in the gearbox, the clutch will slip.

                  SpannersS Offline
                  SpannersS Offline
                  Spanners
                  wrote on last edited by
                  #16

                  @calum
                  Thank you again for all your help!
                  The clutch plates changed when l had the water coming in the gearbox from the water pump seal, could be a bedding in issue?
                  Both sprockets and chain brand new, changed as a full kit.
                  Oil in gearbox is Rock oil lite, bought from Wemoto, someone suggested on a forum and definitely not magnatec!

                  1 Reply Last reply
                  0
                  • F finnerz89

                    @Spanners Are you sure your clutch isn't just slipping?

                    SpannersS Offline
                    SpannersS Offline
                    Spanners
                    wrote on last edited by
                    #17

                    @finnerz89
                    I can’t be fully confident, but are brand new clutch plates.
                    Could it be a bedding in issue?

                    CalumC declanD 2 Replies Last reply
                    0
                    • SpannersS Spanners

                      @finnerz89
                      I can’t be fully confident, but are brand new clutch plates.
                      Could it be a bedding in issue?

                      CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #18

                      @spanners Did you soak the clutch plates in oil 24 hours prior to installing?

                      Always Originate, Never Pirate!

                      SpannersS 1 Reply Last reply
                      0
                      • SpannersS Spanners

                        @finnerz89
                        I can’t be fully confident, but are brand new clutch plates.
                        Could it be a bedding in issue?

                        declanD Offline
                        declanD Offline
                        declan
                        wrote on last edited by
                        #19

                        @spanners are you sure your pv is set up mine was like a rev limiter on and off power around 6.5k

                        1 Reply Last reply
                        0
                        • CalumC Calum

                          @spanners Did you soak the clutch plates in oil 24 hours prior to installing?

                          SpannersS Offline
                          SpannersS Offline
                          Spanners
                          wrote on last edited by
                          #20

                          @calum
                          We cover the clutch plates in the gearbox oil before installing them.
                          It was in accordance with the Haynes manual.
                          Should they have been soaked 24 hours?
                          If so, what are the implications of not doing this?
                          Have they not been soaking in the gearbox oil since installation?
                          How do l stop the clutch slipping from now or when it wears will it natural gather more grip when the high spots wear?
                          If not I’ve got a dangerous reving rocket! Ho-ho!

                          F declanD 2 Replies Last reply
                          0
                          • SpannersS Spanners

                            @calum
                            We cover the clutch plates in the gearbox oil before installing them.
                            It was in accordance with the Haynes manual.
                            Should they have been soaked 24 hours?
                            If so, what are the implications of not doing this?
                            Have they not been soaking in the gearbox oil since installation?
                            How do l stop the clutch slipping from now or when it wears will it natural gather more grip when the high spots wear?
                            If not I’ve got a dangerous reving rocket! Ho-ho!

                            F Offline
                            F Offline
                            finnerz89
                            wrote on last edited by
                            #21

                            @spanners have you adjusted the lever properly as per the manual? Could just be that it's set up wrong

                            Current bikes:
                            DT125X '07
                            Street Triple R '11
                            Aprilia ETV1000 '02

                            Previous:
                            DR650RSE '96
                            FJ1200 '92

                            SpannersS 1 Reply Last reply
                            0
                            • SpannersS Spanners

                              @calum
                              We cover the clutch plates in the gearbox oil before installing them.
                              It was in accordance with the Haynes manual.
                              Should they have been soaked 24 hours?
                              If so, what are the implications of not doing this?
                              Have they not been soaking in the gearbox oil since installation?
                              How do l stop the clutch slipping from now or when it wears will it natural gather more grip when the high spots wear?
                              If not I’ve got a dangerous reving rocket! Ho-ho!

                              declanD Offline
                              declanD Offline
                              declan
                              wrote on last edited by
                              #22

                              @spanners no it must be 24 hrs the implications are you will burn up your friction material they won’t soak as the oil goes to the sump and does not sit in the clutch cover

                              SpannersS 1 Reply Last reply
                              0
                              • declanD declan

                                @spanners no it must be 24 hrs the implications are you will burn up your friction material they won’t soak as the oil goes to the sump and does not sit in the clutch cover

                                SpannersS Offline
                                SpannersS Offline
                                Spanners
                                wrote on last edited by
                                #23

                                @declan
                                Oh bugger!

                                1 Reply Last reply
                                0
                                • F finnerz89

                                  @spanners have you adjusted the lever properly as per the manual? Could just be that it's set up wrong

                                  SpannersS Offline
                                  SpannersS Offline
                                  Spanners
                                  wrote on last edited by
                                  #24

                                  @finnerz89
                                  The bike apparently had a top end rebuild before l got it so l have not messed with anything to do with that. I will have a read and investigate tomorrow.
                                  Thank you for your help!

                                  F 1 Reply Last reply
                                  0
                                  • SpannersS Spanners

                                    @finnerz89
                                    The bike apparently had a top end rebuild before l got it so l have not messed with anything to do with that. I will have a read and investigate tomorrow.
                                    Thank you for your help!

                                    F Offline
                                    F Offline
                                    finnerz89
                                    wrote on last edited by
                                    #25

                                    @spanners you should have about 3mm of free play at the lever as a rough figure

                                    Current bikes:
                                    DT125X '07
                                    Street Triple R '11
                                    Aprilia ETV1000 '02

                                    Previous:
                                    DR650RSE '96
                                    FJ1200 '92

                                    1 Reply Last reply
                                    0
                                    • CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #26

                                      Could be the clutch springs not torqued up properly.

                                      Always Originate, Never Pirate!

                                      SpannersS 1 Reply Last reply
                                      0
                                      • CalumC Calum

                                        Could be the clutch springs not torqued up properly.

                                        SpannersS Offline
                                        SpannersS Offline
                                        Spanners
                                        wrote on last edited by
                                        #27

                                        @calum
                                        I bought a full clutch kit we replaced everything.
                                        All springs are new and we adjusted it to the best of our knowledge and skill.
                                        Maybe the problem was with the repairers! Ha-ha!
                                        Clutch seems pretty solid apart from the power valve, you would have thought if it was slipping, it would do it through all the gears?
                                        I’ll get it up to full speed in 5th to see if it slips, then back to the old drawing board...... 😪

                                        F 1 Reply Last reply
                                        0
                                        • O Offline
                                          O Offline
                                          oldman
                                          wrote on last edited by
                                          #28

                                          It's frustrating innit! Just as you think the end is near something else crops up! Good luck and hope you find the problem quickly,

                                          1 Reply Last reply
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