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DT125R FORUM

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  4. DTR 125 new piston ?

DTR 125 new piston ?

Scheduled Pinned Locked Moved DTR
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  • B Offline
    B Offline
    Blaze.Vile
    wrote on last edited by
    #2

    Also, the bike only gets up to 8k revs, feels like the powerband kicks in at about 5k instead of 6k and sounds nothing like a 2 stroke,

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    • CalumC Online
      CalumC Online
      Calum
      wrote on last edited by
      #3

      You got the right colour powerband installed?

      Always Originate, Never Pirate!

      B 1 Reply Last reply
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      • CalumC Calum

        You got the right colour powerband installed?

        B Offline
        B Offline
        Blaze.Vile
        wrote on last edited by
        #4

        @Calum I believe so. It's the same power band that has been installed for the last 1500 miles (in which it has been running fine) the bike has also lost the signature "brap" a 2 stroke usually has.

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        • CalumC Online
          CalumC Online
          Calum
          wrote on last edited by
          #5

          Best take the exhaust off and have a look up the port. See if the piston/bore is damaged.

          Always Originate, Never Pirate!

          B 1 Reply Last reply
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          • CalumC Calum

            Best take the exhaust off and have a look up the port. See if the piston/bore is damaged.

            B Offline
            B Offline
            Blaze.Vile
            wrote on last edited by Blaze.Vile
            #6

            @Calum There is no rattle at all, could there still be a possibility of a new piston ? Or could I just need to re pack my end can ? As the bike was bought second hand with the exhaust system already on it I cannot tell you how many miles it has been used for.

            CalumC 1 Reply Last reply
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            • B Blaze.Vile

              @Calum There is no rattle at all, could there still be a possibility of a new piston ? Or could I just need to re pack my end can ? As the bike was bought second hand with the exhaust system already on it I cannot tell you how many miles it has been used for.

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

              @Blaze-Vile Just take the exhaust off and have a nosey. Literally 10 minutes and you'll know if it needs a new piston.

              Always Originate, Never Pirate!

              B 1 Reply Last reply
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              • CalumC Calum

                @Blaze-Vile Just take the exhaust off and have a nosey. Literally 10 minutes and you'll know if it needs a new piston.

                B Offline
                B Offline
                Blaze.Vile
                wrote on last edited by
                #8

                @Calum okay, just look for scratches on the barrel and wear on the piston ay ?

                CalumC 1 Reply Last reply
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                • B Blaze.Vile

                  @Calum okay, just look for scratches on the barrel and wear on the piston ay ?

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

                  @Blaze-Vile Yeah, see if the piston is damaged.

                  It could be that you have exhaust leakage.

                  Always Originate, Never Pirate!

                  B 1 Reply Last reply
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                  • CalumC Calum

                    @Blaze-Vile Yeah, see if the piston is damaged.

                    It could be that you have exhaust leakage.

                    B Offline
                    B Offline
                    Blaze.Vile
                    wrote on last edited by
                    #10

                    @Calum I've felt around the connections and I couldn't feel a leakage, No scratches on the piston or barrel either.

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                    • CalumC Online
                      CalumC Online
                      Calum
                      wrote on last edited by
                      #11

                      Power valve operating as expected

                      Always Originate, Never Pirate!

                      B 1 Reply Last reply
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                      • CalumC Calum

                        Power valve operating as expected

                        B Offline
                        B Offline
                        Blaze.Vile
                        wrote on last edited by
                        #12

                        @Calum The servo still moves it when the ignition turn on however the powerband opens up earlier than usual.

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