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DT125R FORUM

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  4. Inspecting powervalve

Inspecting powervalve

Scheduled Pinned Locked Moved Engine
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  • Irongamer727I Offline
    Irongamer727I Offline
    Irongamer727
    wrote on last edited by
    #1

    Okay. I posted earlier about a rattle noise coming when the bike is revved a bit.
    I have spoken to several mechanics and they believe it's the powervalve rattling a bit. The powervalve on mine is OPEN. So to the question. How do I remove the pv? Simply unbolt every screw on each side and them pull the pv out?

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    • CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #2

      But what will removing it acheive. It will be properly noisy without one.

      Always Originate, Never Pirate!

      MightymanM 1 Reply Last reply
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      • CalumC Calum

        But what will removing it acheive. It will be properly noisy without one.

        MightymanM Offline
        MightymanM Offline
        Mightyman
        wrote on last edited by
        #3

        @calum I reckon he might be wanting to clean it or replace worn parts

        TDR 125 - 2001

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        • NottsbikerN Offline
          NottsbikerN Offline
          Nottsbiker
          wrote on last edited by Nottsbiker
          #4

          The only way it will rattle is if the Orange o rings are missing or perished.

          To remove you take off the end caps and pulley if fitted. To undo the central pulley bolt you need to lock the bobbin in the exhaust port some how. I use the wooden handle of my hammer to achieve this. Be careful when you pull each halve out that you don't drop or lose the two pins that go either side of the main bolt.

          CalumC 1 Reply Last reply
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          • NottsbikerN Offline
            NottsbikerN Offline
            Nottsbiker
            wrote on last edited by
            #5

            WD40 and scotchbrite clean them up really well

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            • NottsbikerN Nottsbiker

              The only way it will rattle is if the Orange o rings are missing or perished.

              To remove you take off the end caps and pulley if fitted. To undo the central pulley bolt you need to lock the bobbin in the exhaust port some how. I use the wooden handle of my hammer to achieve this. Be careful when you pull each halve out that you don't drop or lose the two pins that go either side of the main bolt.

              CalumC Offline
              CalumC Offline
              Calum
              wrote on last edited by
              #6

              @nottsbiker Not true as it happens. The bush the oring sits on can actually wear out as well, elieve it or not.

              Always Originate, Never Pirate!

              NottsbikerN 1 Reply Last reply
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              • Irongamer727I Offline
                Irongamer727I Offline
                Irongamer727
                wrote on last edited by
                #7

                Thanks guys!

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                • CalumC Calum

                  @nottsbiker Not true as it happens. The bush the oring sits on can actually wear out as well, elieve it or not.

                  NottsbikerN Offline
                  NottsbikerN Offline
                  Nottsbiker
                  wrote on last edited by
                  #8

                  @calum said in Inspecting powervalve:

                  @nottsbiker Not true as it happens. The bush the oring sits on can actually wear out as well, elieve it or not.

                  Sorry had assumed it was locked open 😉

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