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DT125R FORUM

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  4. DT125R 98 rev problem

DT125R 98 rev problem

Scheduled Pinned Locked Moved Engine
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  • CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #3

    Sounds like a powervalve issue would be my first point of call.

    Does the servo operate when the ignition is switched on and off.

    How long has this problem occurred for.

    3RM, is that the model with the 3 wire powervalve with separate control unit for the servo.

    I would also check to see that the cdi isn't faulty.

    What condition is the battery in and the charging unit. Funny stuff can happen when the battery dies. If the battery is not maintaining charge then you will need to examine charging unit.

    A worn tired engine will also cause problems if everything else seems fine.

    Firstly check that the powervalve is operating as it should? Then you will want to check the cdi.

    How does the power feel. Could be as simple as worn clutch whereby it slips and as such revs out. Then gains traction and falls back to 6k.

    To be honest there are many factors that this couls fall under. But ultimately it's a mechanical operation and resolving it is just a matter of time.

    Try the above and let us know how you get on.

    Always Originate, Never Pirate!

    T 1 Reply Last reply
    0
    • L Offline
      L Offline
      LAIMONASLTDT
      wrote on last edited by
      #4

      I'm opened power valve fully and set in that possition,battery is fully working,voltage good to,

      1 Reply Last reply
      0
      • L Offline
        L Offline
        LAIMONASLTDT
        wrote on last edited by
        #5

        How to examine charging unit?

        1 Reply Last reply
        0
        • CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #6

          Either cdi or clutch then.

          Always Originate, Never Pirate!

          1 Reply Last reply
          0
          • CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #7

            To test the charging unit you will want to do an impedance test through the coils and make sure you're getting the same ohms as stated in the manual

            Always Originate, Never Pirate!

            1 Reply Last reply
            0
            • L Offline
              L Offline
              LAIMONASLTDT
              wrote on last edited by
              #8

              Hey again,i saw that my speedo has no light anymore, and i checked conection which is showed in picture (speedo cable) [url=http://postimage.org/][img]http://s13.postimg.org/t8kuhr4lj/hhhhgfy.png[/img][/url]
              after all i found one germany website there is write something about derestricting,but the problem is engine is 4bl type cdi and electricion is 3rm10 for probably de03 engine ant engine has power valve with 5 vires servo,it's hybride system ,does it is posible to derestrict cutting black/white cable from speedo?

              1 Reply Last reply
              0
              • L Offline
                L Offline
                LAIMONASLTDT
                wrote on last edited by
                #9

                sorry bad link http://s13.postimg.org/t8kuhr4lj/hhhhgfy.png

                CalumC 1 Reply Last reply
                0
                • L LAIMONASLTDT

                  sorry bad link http://s13.postimg.org/t8kuhr4lj/hhhhgfy.png

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #10

                  @LAIMONASLTDT I believe you're talking about the reed switch which goes into the back of the clocks on the older models.

                  It sounds unfortunate that you've got a bit of a hybrid which makes understanding your problem slightly tricky.

                  Regardless of the engine, the CDI is what we're interested in.

                  The older models, I believe, had a separate ECU for controlling the Powervalve, although that isn't what you have here.

                  You effectively have the CDI taking readings and determining when to restrict the engine upon certain parameters.

                  One of those parameters are, presumably, speed/RPM. So you want to falsify those readings. It won't be the wire controlling the back light. You need to isolate the correct wire that will go from the Clocks to the CDI. I wiring diagram from a Haynes manual will indicate which one is doing that for you.

                  Always Originate, Never Pirate!

                  1 Reply Last reply
                  0
                  • CalumC Calum

                    Sounds like a powervalve issue would be my first point of call.

                    Does the servo operate when the ignition is switched on and off.

                    How long has this problem occurred for.

                    3RM, is that the model with the 3 wire powervalve with separate control unit for the servo.

                    I would also check to see that the cdi isn't faulty.

                    What condition is the battery in and the charging unit. Funny stuff can happen when the battery dies. If the battery is not maintaining charge then you will need to examine charging unit.

                    A worn tired engine will also cause problems if everything else seems fine.

                    Firstly check that the powervalve is operating as it should? Then you will want to check the cdi.

                    How does the power feel. Could be as simple as worn clutch whereby it slips and as such revs out. Then gains traction and falls back to 6k.

                    To be honest there are many factors that this couls fall under. But ultimately it's a mechanical operation and resolving it is just a matter of time.

                    Try the above and let us know how you get on.

                    T Offline
                    T Offline
                    thegagetmasta19
                    wrote on last edited by thegagetmasta19
                    #11

                    @Calum hi Callum I was just wondering if you would be able to help me I'm currently building a dt125r from the ground up just boxes of bits and I'm trying to find a cdi that will work with my loom which is a 1998 any help will be much appreciated thanks

                    CalumC 1 Reply Last reply
                    0
                    • T thegagetmasta19

                      @Calum hi Callum I was just wondering if you would be able to help me I'm currently building a dt125r from the ground up just boxes of bits and I'm trying to find a cdi that will work with my loom which is a 1998 any help will be much appreciated thanks

                      CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #12

                      @thegagetmasta19 I got a feeling you're looking for a 3RM CDI. But really I'm not the best person to ask.

                      Always Originate, Never Pirate!

                      T 1 Reply Last reply
                      0
                      • CalumC Calum

                        @thegagetmasta19 I got a feeling you're looking for a 3RM CDI. But really I'm not the best person to ask.

                        T Offline
                        T Offline
                        thegagetmasta19
                        wrote on last edited by
                        #13

                        @Calum ok Callum thanks I'm new here so do you know anyone I could ask thanks

                        CalumC 1 Reply Last reply
                        0
                        • T thegagetmasta19

                          @Calum ok Callum thanks I'm new here so do you know anyone I could ask thanks

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #14

                          @thegagetmasta19 It's not really about asking specific people bud. Open a thread in the relevant section, if someone is kind enough to help you then they will. Forums aren't about targeting specific people, it's a community of people who want to help each other.

                          Always Originate, Never Pirate!

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                          0
                          • Louis-DT-WRL Offline
                            Louis-DT-WRL Offline
                            Louis-DT-WR
                            wrote on last edited by
                            #15

                            Could be the reed stops are too far apart and reeds can't keep up,

                            1 Reply Last reply
                            0
                            • Louis-DT-WRL Offline
                              Louis-DT-WRL Offline
                              Louis-DT-WR
                              wrote on last edited by
                              #16

                              Has it always had this problem for you or just started happening?

                              1 Reply Last reply
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