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DT125R FORUM

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  4. Powervalve dtr 2002

Powervalve dtr 2002

Scheduled Pinned Locked Moved Engine
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  • C cartermarc1

    My powervalve doesn’t seem to work properly I recent replace the the servo put new one on I think got the cables on right when put the battery on it turns one way doesn’t return has now bottom power I’ve set the it up with the cables so it lines up with the hole if u put battery on it goes clockwise and stays there can hear the servo trying to move but won’t moves freely with hand any help much apriciated thanks

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by
    #2

    @cartermarc1 sure your cables aren’t too tight?

    C 2 Replies Last reply
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    • declanD declan

      @cartermarc1 sure your cables aren’t too tight?

      C Offline
      C Offline
      cartermarc1
      wrote on last edited by
      #3

      @declan Ile take a picture of them won’t be Wednesday night tho there not tight got no.1 going to no.1 same with no.2 from pics I’ve seen of others looks right thanks

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      • CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #4

        I had a similar problem when my cdi went faulty. Was an aftermarket CDI mind you.

        Always Originate, Never Pirate!

        C 1 Reply Last reply
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        • CalumC Calum

          I had a similar problem when my cdi went faulty. Was an aftermarket CDI mind you.

          C Offline
          C Offline
          cartermarc1
          wrote on last edited by
          #5

          @calum ok mate thanks

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          • declanD declan

            @cartermarc1 sure your cables aren’t too tight?

            C Offline
            C Offline
            cartermarc1
            wrote on last edited by
            #6

            )I was wondering if I had the cables the Wright way round I’ve read that some are crossed over

            CalumC 1 Reply Last reply
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            • C cartermarc1

              )I was wondering if I had the cables the Wright way round I’ve read that some are crossed over

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

              @cartermarc1 I would disconnect the cables and just make sure the valve does a sweep properly when you switch the ignition on and off.

              Always Originate, Never Pirate!

              C 1 Reply Last reply
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              • CalumC Calum

                @cartermarc1 I would disconnect the cables and just make sure the valve does a sweep properly when you switch the ignition on and off.

                C Offline
                C Offline
                cartermarc1
                wrote on last edited by
                #8

                @calum I’ve took the cables off it’s working anti-clockwise on the servo but only when I turn it clockwise with my hand

                CalumC 1 Reply Last reply
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                • C cartermarc1

                  @calum I’ve took the cables off it’s working anti-clockwise on the servo but only when I turn it clockwise with my hand

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

                  @cartermarc1 It doesn't do a cleaning cycle then? Only going one way and not returning.

                  Sounds like the servo ECU is burnt out.

                  Always Originate, Never Pirate!

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                  • C Offline
                    C Offline
                    cartermarc1
                    wrote on last edited by
                    #10

                    No mate its not only turning one way have a look for a new servo how do I open it fully while I find one thanks for the help

                    CalumC 1 Reply Last reply
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                    • C cartermarc1

                      No mate its not only turning one way have a look for a new servo how do I open it fully while I find one thanks for the help

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

                      @cartermarc1 I don't suspect it's the servo.

                      When I had this issue, it was the CDI that was faulty (since the servo's operation is controlled by the CDI). But depending on your model it might be a separate ECU.

                      For a 2002, I believe it's the CDI.

                      I would just leave it disconnected, and pin the valve open for now.

                      Always Originate, Never Pirate!

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                      • C Offline
                        C Offline
                        cartermarc1
                        wrote on last edited by
                        #12

                        How do I pin the valve thanks

                        CalumC 1 Reply Last reply
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                        • C cartermarc1

                          How do I pin the valve thanks

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #13

                          @cartermarc1 Set it to open and lock off the nut to stop it rotating.

                          Always Originate, Never Pirate!

                          C 1 Reply Last reply
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                          • CalumC Calum

                            @cartermarc1 Set it to open and lock off the nut to stop it rotating.

                            C Offline
                            C Offline
                            cartermarc1
                            wrote on last edited by
                            #14

                            @calum to set it to open is powervalve is flush with the top ? Thanks for all your help

                            CalumC 1 Reply Last reply
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                            • C cartermarc1

                              @calum to set it to open is powervalve is flush with the top ? Thanks for all your help

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

                              @cartermarc1 The valve will be flush with the exhaust port, since the valves job is to altr the exhaust port height to enable better low end performance by restricting lost fuel and air theough the open port.

                              Always Originate, Never Pirate!

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