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DT125R FORUM

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  4. The wr200 3xp / dt125r 3bn hybrid 200cc engine no.2

The wr200 3xp / dt125r 3bn hybrid 200cc engine no.2

Scheduled Pinned Locked Moved Engine
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  • Louis-DT-WRL Offline
    Louis-DT-WRL Offline
    Louis-DT-WR
    wrote on last edited by
    #4

    alt text
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    Cylinder fits and ports all math up perfectly now.
    Crankshaft housing to be bored out next

    1 Reply Last reply
    1
    • Louis-DT-WRL Offline
      Louis-DT-WRL Offline
      Louis-DT-WR
      wrote on last edited by
      #5

      Crankshaft is finally due to arrive tomorrow 😁

      After speaking of the anodizers they recommend not anodising on a sandblasted finish.

      So I Powder coated instead.

      alt text
      alt text

      F CalumC 2 Replies Last reply
      2
      • Louis-DT-WRL Louis-DT-WR

        Crankshaft is finally due to arrive tomorrow 😁

        After speaking of the anodizers they recommend not anodising on a sandblasted finish.

        So I Powder coated instead.

        alt text
        alt text

        F Offline
        F Offline
        finnerz89
        wrote on last edited by
        #6

        @Louis-James similar colour to my cases! 👍 Looking good dude

        Current bikes:
        DT125X '07
        Street Triple R '11
        Aprilia ETV1000 '02

        Previous:
        DR650RSE '96
        FJ1200 '92

        Louis-DT-WRL 1 Reply Last reply
        0
        • F finnerz89

          @Louis-James similar colour to my cases! 👍 Looking good dude

          Louis-DT-WRL Offline
          Louis-DT-WRL Offline
          Louis-DT-WR
          wrote on last edited by
          #7

          @finnerz89 thanks, I chose at random tbh as the samples are so hard to tell from in my experience but happy with the outcome

          1 Reply Last reply
          0
          • Louis-DT-WRL Louis-DT-WR

            Crankshaft is finally due to arrive tomorrow 😁

            After speaking of the anodizers they recommend not anodising on a sandblasted finish.

            So I Powder coated instead.

            alt text
            alt text

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

            @Louis-James They've come up well.

            I was always really sceptical about powdercoating the crank cases.

            Always Originate, Never Pirate!

            declanD 1 Reply Last reply
            1
            • CalumC Calum

              @Louis-James They've come up well.

              I was always really sceptical about powdercoating the crank cases.

              declanD Offline
              declanD Offline
              declan
              wrote on last edited by
              #9

              @Calum howcome

              1 Reply Last reply
              0
              • Louis-DT-WRL Offline
                Louis-DT-WRL Offline
                Louis-DT-WR
                wrote on last edited by
                #10

                alt text
                Finally arrived

                NINJAN 1 Reply Last reply
                3
                • Louis-DT-WRL Louis-DT-WR

                  alt text
                  Finally arrived

                  NINJAN Offline
                  NINJAN Offline
                  NINJA
                  wrote on last edited by
                  #11

                  @Louis-James Very cranky!!! :smiling_face_with_open_mouth_cold_sweat: :face_with_tears_of_joy: 🤣

                  SEDUCED BY THE DARK SIDE!!!

                  1 Reply Last reply
                  1
                  • MiniaM Offline
                    MiniaM Offline
                    Minia
                    wrote on last edited by
                    #12

                    Looking good! Then again everything you do looks outstanding to me.

                    Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                    Louis-DT-WRL 1 Reply Last reply
                    1
                    • MiniaM Minia

                      Looking good! Then again everything you do looks outstanding to me.

                      Louis-DT-WRL Offline
                      Louis-DT-WRL Offline
                      Louis-DT-WR
                      wrote on last edited by
                      #13

                      @Minia thanks man. I like to do my best 😉

                      1 Reply Last reply
                      0
                      • Louis-DT-WRL Offline
                        Louis-DT-WRL Offline
                        Louis-DT-WR
                        wrote on last edited by
                        #14

                        alt text
                        alt text
                        New powervalver but not genuine from Greece.

                        alt text
                        alt text

                        NINJAN 1 Reply Last reply
                        1
                        • Louis-DT-WRL Louis-DT-WR

                          alt text
                          alt text
                          New powervalver but not genuine from Greece.

                          alt text
                          alt text

                          NINJAN Offline
                          NINJAN Offline
                          NINJA
                          wrote on last edited by
                          #15

                          @Louis-James If it's not genuine then what are the Yammy packets for??? :confused_face:

                          SEDUCED BY THE DARK SIDE!!!

                          Louis-DT-WRL 1 Reply Last reply
                          0
                          • NINJAN NINJA

                            @Louis-James If it's not genuine then what are the Yammy packets for??? :confused_face:

                            Louis-DT-WRL Offline
                            Louis-DT-WRL Offline
                            Louis-DT-WR
                            wrote on last edited by
                            #16

                            @NINJA the powervalve is a reproduction. I have lots of brand new genuine parts that came from fowlers

                            1 Reply Last reply
                            0
                            • Louis-DT-WRL Offline
                              Louis-DT-WRL Offline
                              Louis-DT-WR
                              wrote on last edited by
                              #17

                              What is this? I've not seen it before from memory clips inside the splined washer .

                              alt text

                              alt text

                              1 Reply Last reply
                              0
                              • Louis-DT-WRL Offline
                                Louis-DT-WRL Offline
                                Louis-DT-WR
                                wrote on last edited by
                                #18

                                alt text
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                                alt text

                                Cases bored out for the larger crankshaft

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                                NINJAN 1 Reply Last reply
                                2
                                • Louis-DT-WRL Louis-DT-WR

                                  alt text
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                                  alt text

                                  Cases bored out for the larger crankshaft

                                  alt text
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                                  alt text
                                  alt text

                                  NINJAN Offline
                                  NINJAN Offline
                                  NINJA
                                  wrote on last edited by
                                  #19

                                  @Louis-James Sweet looking job dude. :clapping_hands:

                                  SEDUCED BY THE DARK SIDE!!!

                                  1 Reply Last reply
                                  0
                                  • CalumC Online
                                    CalumC Online
                                    Calum
                                    wrote on last edited by
                                    #20

                                    WOw, that looks superb!

                                    Always Originate, Never Pirate!

                                    Louis-DT-WRL 1 Reply Last reply
                                    0
                                    • CalumC Calum

                                      WOw, that looks superb!

                                      Louis-DT-WRL Offline
                                      Louis-DT-WRL Offline
                                      Louis-DT-WR
                                      wrote on last edited by
                                      #21

                                      @Calum @NINJA cheers lads. When you're rebuilding an engine that the previous owner "rebuilt" themselves you soon realise how many parts were missing, damaged or incorrect. Any help with the clutch washer ? Still need to do 1 more fowlers order. Pistons on its way 🙂

                                      1 Reply Last reply
                                      0
                                      • 2 Offline
                                        2 Offline
                                        2stroketerry
                                        wrote on last edited by
                                        #22

                                        @Louis-James Great little engine your building and like seeing quality work that you do. When i put a 57mm stroke crank in mine didn't fit the washer under the PRIMARY DRIVE GEAR NUT so the so the nut had the maximum amount of threads to screw onto.

                                        0_1537452840393_nut.jpg

                                        The tabbed washer inside the splined washer is used to set the mainshaft endfloat on the clutch on some yamaha engines as they mix and match some gears inside the crankcase.
                                        Was thinking of using this on my new engine build but now decided to see what i can build using the Athena 170 kit so just bought them.
                                        https://www.ebay.co.uk/itm/YAMAHA-WR-200-3XP-4BF-NEW-SLEEVED-BIG-BORE-68mm-Cylinder-PISTON-3XP-11311-00-00/113185389112?hash=item1a5a5ffa38:g:3fwAAOSwEfBbZ3Je

                                        @Louis-James where did you get the final drive shaft from as need one for my new build. thanks

                                        Louis-DT-WRL 1 Reply Last reply
                                        1
                                        • 2 2stroketerry

                                          @Louis-James Great little engine your building and like seeing quality work that you do. When i put a 57mm stroke crank in mine didn't fit the washer under the PRIMARY DRIVE GEAR NUT so the so the nut had the maximum amount of threads to screw onto.

                                          0_1537452840393_nut.jpg

                                          The tabbed washer inside the splined washer is used to set the mainshaft endfloat on the clutch on some yamaha engines as they mix and match some gears inside the crankcase.
                                          Was thinking of using this on my new engine build but now decided to see what i can build using the Athena 170 kit so just bought them.
                                          https://www.ebay.co.uk/itm/YAMAHA-WR-200-3XP-4BF-NEW-SLEEVED-BIG-BORE-68mm-Cylinder-PISTON-3XP-11311-00-00/113185389112?hash=item1a5a5ffa38:g:3fwAAOSwEfBbZ3Je

                                          @Louis-James where did you get the final drive shaft from as need one for my new build. thanks

                                          Louis-DT-WRL Offline
                                          Louis-DT-WRL Offline
                                          Louis-DT-WR
                                          wrote on last edited by
                                          #23

                                          @2stroketerry thanks man, I also ran a blaster 200 crankshaft on my original 200cc engine but wasn't happy with less gear meshing between the primary drive and clutch.

                                          With regards to the tab washer.. I can't see it on any exploded diagrams. What years use it?

                                          The final drive shaft I got brand new on eBay from Greece , £30 from memory, from Yamaha it's around £100

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