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DT125R FORUM

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  4. 200cc crankcase conversion

200cc crankcase conversion

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  • Stevie WonderS Offline
    Stevie WonderS Offline
    Stevie Wonder
    wrote on last edited by
    #1

    Is there anyone here who could or knows someone that’d one day bore it may cases to accept WR200 3xp top end and crank? And what they’d charge for it?

    It’s been something I’ve been curious about ever since seeing @Louis-DT-WR build his engine

    CalumC S 2 Replies Last reply
    0
    • Stevie WonderS Stevie Wonder

      Is there anyone here who could or knows someone that’d one day bore it may cases to accept WR200 3xp top end and crank? And what they’d charge for it?

      It’s been something I’ve been curious about ever since seeing @Louis-DT-WR build his engine

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

      @Stevie-Wonder Pretty sure he documented it all on this website...

      Always Originate, Never Pirate!

      1 Reply Last reply
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      • Stevie WonderS Stevie Wonder

        Is there anyone here who could or knows someone that’d one day bore it may cases to accept WR200 3xp top end and crank? And what they’d charge for it?

        It’s been something I’ve been curious about ever since seeing @Louis-DT-WR build his engine

        S Offline
        S Offline
        scrimsmustang
        wrote on last edited by
        #3

        @Stevie-Wonder said in 200cc crankcase conversion:

        Is there anyone here who could or knows someone that’d one day bore it may cases to accept WR200 3xp top end and crank? And what they’d charge for it?

        It’s been something I’ve been curious about ever since seeing @Louis-DT-WR build his engine

        It's nothing cases just need a couple of mm taking off to accept the 200 crankshaft. Any small local engineering shop will do it for around 30 quid. Top end just drops straight on

        1 Reply Last reply
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        • B Offline
          B Offline
          BEng1968
          wrote on last edited by
          #4

          Yes I know somebody who could do it, my dad. Where do you live?

          S 1 Reply Last reply
          0
          • B BEng1968

            Yes I know somebody who could do it, my dad. Where do you live?

            S Offline
            S Offline
            SpookDog
            wrote on last edited by
            #5

            @BEng1968

            What county/ town you at? It’d be nice to know a good engineer. They’ve all but disappeared down my way...
            Dorset

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            • ChallengerC Offline
              ChallengerC Offline
              Challenger
              wrote on last edited by
              #6

              WR200 also uses bigger reeds, usual mod is to weld around the DTR reeds mount and then make the hole bigger for new reed cage

              Stevie WonderS 1 Reply Last reply
              1
              • B Offline
                B Offline
                BEng1968
                wrote on last edited by
                #7

                Uk, Leicester

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                • ChallengerC Challenger

                  WR200 also uses bigger reeds, usual mod is to weld around the DTR reeds mount and then make the hole bigger for new reed cage

                  Stevie WonderS Offline
                  Stevie WonderS Offline
                  Stevie Wonder
                  wrote on last edited by Stevie Wonder
                  #8

                  @Calum said in 200cc crankcase conversion:

                  @Stevie-Wonder Pretty sure he documented it all on this website...

                  Ye I know @Calum I’ve re-reading it but all the photos are now gone 😞

                  @Challenger I’ve got a v force blaster 200 Reed cage that should help right ?

                  And thanks @scrimsmustang! If I’d been known it was simple earlier I think I’d have already done it 😂

                  Excusing the powervalve blade itself do you need the WR’s Servo motor, pulleys and housing etc

                  And I presume you need either a 200cdi or a Zeely/Ignitech programmable ignition too

                  markus.wM S 2 Replies Last reply
                  0
                  • Stevie WonderS Stevie Wonder

                    @Calum said in 200cc crankcase conversion:

                    @Stevie-Wonder Pretty sure he documented it all on this website...

                    Ye I know @Calum I’ve re-reading it but all the photos are now gone 😞

                    @Challenger I’ve got a v force blaster 200 Reed cage that should help right ?

                    And thanks @scrimsmustang! If I’d been known it was simple earlier I think I’d have already done it 😂

                    Excusing the powervalve blade itself do you need the WR’s Servo motor, pulleys and housing etc

                    And I presume you need either a 200cdi or a Zeely/Ignitech programmable ignition too

                    markus.wM Offline
                    markus.wM Offline
                    markus.w
                    wrote on last edited by
                    #9

                    @Stevie-Wonder "all the photos are now gone"
                    He changed his YouTube channel name when he built the cb750 but here's the link to his video which is a montage of all the photos of the conversion.
                    https://youtu.be/uVk7RZRvxDg

                    1 Reply Last reply
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                    • Stevie WonderS Stevie Wonder

                      @Calum said in 200cc crankcase conversion:

                      @Stevie-Wonder Pretty sure he documented it all on this website...

                      Ye I know @Calum I’ve re-reading it but all the photos are now gone 😞

                      @Challenger I’ve got a v force blaster 200 Reed cage that should help right ?

                      And thanks @scrimsmustang! If I’d been known it was simple earlier I think I’d have already done it 😂

                      Excusing the powervalve blade itself do you need the WR’s Servo motor, pulleys and housing etc

                      And I presume you need either a 200cdi or a Zeely/Ignitech programmable ignition too

                      S Offline
                      S Offline
                      scrimsmustang
                      wrote on last edited by
                      #10

                      @Stevie-Wonder said in 200cc crankcase conversion:

                      @Calum said in 200cc crankcase conversion:

                      @Stevie-Wonder Pretty sure he documented it all on this website...

                      Ye I know @Calum I’ve re-reading it but all the photos are now gone 😞

                      @Challenger I’ve got a v force blaster 200 Reed cage that should help right ?

                      And thanks @scrimsmustang! If I’d been known it was simple earlier I think I’d have already done it 😂

                      Excusing the powervalve blade itself do you need the WR’s Servo motor, pulleys and housing etc

                      And I presume you need either a 200cdi or a Zeely/Ignitech programmable ignition too

                      No you can use a 125 servo and a 125 CDI with no problems at all

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