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DT125R FORUM

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  4. restricted cdi

restricted cdi

Scheduled Pinned Locked Moved Electrics
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  • D dtr mkd

    @Calum checked power valve and it is ok. when ignition on it is flush open then when engine start it closes. if i lock the pv open the bike has more pover in high revs but cant get more than maybe 9-10k

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #5

    @dtr-mkd Nice, well you've checked that it's not the valve so depending on what year your bike is will determine how you derestrict it.

    There is a guide on here I'm sure you can find it if you search for it.

    Always Originate, Never Pirate!

    D 1 Reply Last reply
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    • CalumC Calum

      @dtr-mkd Nice, well you've checked that it's not the valve so depending on what year your bike is will determine how you derestrict it.

      There is a guide on here I'm sure you can find it if you search for it.

      D Offline
      D Offline
      dtr mkd
      wrote on last edited by
      #6

      @Calum it is 1988 3BN bike imported from switzerland. any help how to derestrict it will be great as i am new with dtr's

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      • A Offline
        A Offline
        andrewj1680
        wrote on last edited by
        #7

        Being a 88 model I'm guessing the power valve isn't on cables the best thing you can do if not is take the cover off the powervalve on the left side of the cylinder head and rotate it 180 degrees and then refit the cover

        CalumC 1 Reply Last reply
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        • A andrewj1680

          Being a 88 model I'm guessing the power valve isn't on cables the best thing you can do if not is take the cover off the powervalve on the left side of the cylinder head and rotate it 180 degrees and then refit the cover

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #8

          @andrewj1680 On the later DTR's powervalves were fitted as standard, on the earlier ones it was my impression that powervalves were ONLY fitted to those that provided a the dealer with a bike license.

          I was also under the impression that Joe Bloggs could go to Yamaha and buy the Powervalve to retrofit to their machines. But they just couldn't buy the bike with it fitted.

          So it's possible that a factory fresh 88 could have YPVS.

          I was also under the impression 88's were Mk3 DT LC's not R's.

          I don't know anything about the LC's, except the Mk3's wer every similar to the R's but ran a different engine

          alt text

          Previous generations of the LC ran front and rear drums with a completely different swingarm

          Always Originate, Never Pirate!

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          • A Offline
            A Offline
            andrewj1680
            wrote on last edited by
            #9

            Calum he stated his bike was the dtr and I know my f plate dt125r was a manual power valve and the only restriction on it was the power valve

            D 1 Reply Last reply
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            • A andrewj1680

              Calum he stated his bike was the dtr and I know my f plate dt125r was a manual power valve and the only restriction on it was the power valve

              D Offline
              D Offline
              dtr mkd
              wrote on last edited by
              #10

              @andrewj1680 guys the bike has a working servo for pv and when ignition on it does the cleaning cycle1_1489607366262_IMG_6539.JPG 0_1489607366260_IMG_6538.JPG

              A ZrakoZ 2 Replies Last reply
              0
              • D dtr mkd

                @andrewj1680 guys the bike has a working servo for pv and when ignition on it does the cleaning cycle1_1489607366262_IMG_6539.JPG 0_1489607366260_IMG_6538.JPG

                A Offline
                A Offline
                andrewj1680
                wrote on last edited by
                #11

                @dtr-mkd I'd take the cover off and check it's all moving as it should if so pin it in the open position and unplug the servo then try it again

                D 1 Reply Last reply
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                • D dtr mkd

                  @andrewj1680 guys the bike has a working servo for pv and when ignition on it does the cleaning cycle1_1489607366262_IMG_6539.JPG 0_1489607366260_IMG_6538.JPG

                  ZrakoZ Offline
                  ZrakoZ Offline
                  Zrako
                  wrote on last edited by
                  #12

                  @dtr-mkd thats a lovely clutch there

                  1979 Jawa Mustang 50
                  2003 Gilera DNA 125 R.I.P
                  2015 Keeway TX 125 SM
                  2006 Yamaha DT 125 X

                  D 1 Reply Last reply
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                  • A andrewj1680

                    @dtr-mkd I'd take the cover off and check it's all moving as it should if so pin it in the open position and unplug the servo then try it again

                    D Offline
                    D Offline
                    dtr mkd
                    wrote on last edited by
                    #13

                    @andrewj1680 i have done that and when the pv is pined open there is a big impruvement in higher revs but not more than 9-10k

                    1 Reply Last reply
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                    • ZrakoZ Zrako

                      @dtr-mkd thats a lovely clutch there

                      D Offline
                      D Offline
                      dtr mkd
                      wrote on last edited by
                      #14

                      @Zrako thanks. 30$ from aliexpress.com and it is a good improvement

                      1 Reply Last reply
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                      • CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #15

                        Right to nip this one in the bud.

                        As said if you use the search button

                        https://dt125r.co.uk/search?term=restrictions&in=titlesposts

                        https://dt125r.co.uk/topic/576/restrictions

                        Have a look at @CYBER-NINJA's post...

                        Always Originate, Never Pirate!

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                        • DylanDT219D Offline
                          DylanDT219D Offline
                          DylanDT219
                          wrote on last edited by
                          #16

                          okay quindi come hai tolto queste restrizioni?

                          1 Reply Last reply
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