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DT125R FORUM

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  4. PIC HEAVY (wr200 topend , zeeltronic, tm34ss carb, V-force reed block,Larger radiator,DEP PIPE,)

PIC HEAVY (wr200 topend , zeeltronic, tm34ss carb, V-force reed block,Larger radiator,DEP PIPE,)

Scheduled Pinned Locked Moved DTR
tuningdtryamaha2003wr200
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  • Louis-DT-WRL Louis-DT-WR

    Thanks guys, yes the zeeltronic is amazing. I was the one who helped zeeltronic make a cdi for the dt125r 2003 with my specs, data and wiring with the connector blocks pictures. Really helped set the correct powervalve curve and limits with my wr200 top end and using the dt125r stator plate, also the ignition timing.
    alt text

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #10

    @Louis-James I remember the commotion on the last site. Respect for that mate that's awesome.

    Always Originate, Never Pirate!

    Louis-DT-WRL 1 Reply Last reply
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    • ConnorDTRC Offline
      ConnorDTRC Offline
      ConnorDTR
      wrote on last edited by
      #11

      That is ridiculously clean! Looking good

      1 Reply Last reply
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      • CalumC Calum

        @Louis-James I remember the commotion on the last site. Respect for that mate that's awesome.

        Louis-DT-WRL Offline
        Louis-DT-WRL Offline
        Louis-DT-WR
        wrote on last edited by
        #12

        @Calum thanks. I've seen yours too and it's sweet

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

          The 200cc part
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          Crank cases bored to fit the wr200 crankshaft
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          Enlarging the transfer ports
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          alt text

          Louis-DT-WRL 1 Reply Last reply
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          • Louis-DT-WRL Offline
            Louis-DT-WRL Offline
            Louis-DT-WR
            wrote on last edited by
            #14
            This post is deleted!
            1 Reply Last reply
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            • Louis-DT-WRL Louis-DT-WR

              The 200cc part
              alt text
              Crank cases bored to fit the wr200 crankshaft
              alt text

              Enlarging the transfer ports
              alt text

              alt text

              Louis-DT-WRL Offline
              Louis-DT-WRL Offline
              Louis-DT-WR
              wrote on last edited by Louis-DT-WR
              #15

              Bought this off Gumtree, all threads stripped, I had to use a m10 helicoil kit on the head studs. The powervalve was damaged so I bought a brand new one at a later date. This is the nickasil bore version and didn't need a re-bore luckily so I bought a new wiseco piston and a brand-new wr200 crankshaft, originally I bought a wiseco yamaha blaster one which did fit in with modifications to the primary drive gear but I wasn't happy with it so I swapped it.

              alt text
              alt text

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

                Bought this off Gumtree, all threads stripped, I had to use a m10 helicoil kit on the head studs. The powervalve was damaged so I bought a brand new one at a later date. This is the nickasil bore version and didn't need a re-bore luckily so I bought a new wiseco piston and a brand-new wr200 crankshaft, originally I bought a wiseco yamaha blaster one which did fit in with modifications to the primary drive gear but I wasn't happy with it so I swapped it.

                alt text
                alt text

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

                A few comparison pics
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                The new piston
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                Powdercoated in my favorite colours

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

                  Old vs new haha
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                  Née crank bearings
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                  alt text
                  Test fit (I later had the crankcases sprayed) alt text

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

                    Here's a close up of the wr200s boost ports (before I cleaned them) note: also bought a brand new powervalve afterwards as the dowl holes were sloppy.
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                    Here's it built up (not using the tmx30 anymore)
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                    1 Reply Last reply
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                    • Louis-DT-WRL Offline
                      Louis-DT-WRL Offline
                      Louis-DT-WR
                      wrote on last edited by Louis-DT-WR
                      #19

                      My custom intake upgrade
                      Vforce v3 reed block - mikuni tm34ss carburetor
                      alt text

                      I cut the spigot off the reed block and centralized the flow to match the original and cut bolt holes to match
                      alt text

                      1 Reply Last reply
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                      • Louis-DT-WRL Offline
                        Louis-DT-WRL Offline
                        Louis-DT-WR
                        wrote on last edited by Louis-DT-WR
                        #20

                        I cut off the flow guide from the manifold (this is not a restrictor, people think it is but it isn't, removing it will lose performance) I do not need this as my reed block comes with one fitted.

                        alt text

                        1 Reply Last reply
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                        • Louis-DT-WRL Offline
                          Louis-DT-WRL Offline
                          Louis-DT-WR
                          wrote on last edited by Louis-DT-WR
                          #21

                          See what I mean?
                          alt text

                          1 Reply Last reply
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                          • Louis-DT-WRL Offline
                            Louis-DT-WRL Offline
                            Louis-DT-WR
                            wrote on last edited by Louis-DT-WR
                            #22

                            I used a tm34ss from a Aprilia rs250
                            alt text

                            Note the angle spigots, this makes fitting a lot more easy and the float bowl stays level

                            alt text

                            1 Reply Last reply
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                            • Louis-DT-WRL Offline
                              Louis-DT-WRL Offline
                              Louis-DT-WR
                              wrote on last edited by Louis-DT-WR
                              #23

                              I had to carefully enlarge the manifolds bore to 34mm and also increase the size to fit the carburetor in, I managed to add a grip step to match the carburetor (this adds more stability.)

                              Because the size of the carbs inlet I had to compromise. I tried a yz250 evos rubber boot which almost was perfect but it kept breaking due to age.

                              So plan B was like this:

                              alt text

                              1 Reply Last reply
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                              • Louis-DT-WRL Offline
                                Louis-DT-WRL Offline
                                Louis-DT-WR
                                wrote on last edited by Louis-DT-WR
                                #24

                                alt text
                                alt text

                                It wasn't the nicest way, but it works well

                                1 Reply Last reply
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                                • Louis-DT-WRL Offline
                                  Louis-DT-WRL Offline
                                  Louis-DT-WR
                                  wrote on last edited by Louis-DT-WR
                                  #25

                                  I also removed the top of the airbox previous to this mod

                                  alt text
                                  alt text

                                  1 Reply Last reply
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                                  • Louis-DT-WRL Offline
                                    Louis-DT-WRL Offline
                                    Louis-DT-WR
                                    wrote on last edited by Louis-DT-WR
                                    #26

                                    A few pictures of it fitted.
                                    alt text
                                    alt text

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                                    • Louis-DT-WRL Offline
                                      Louis-DT-WRL Offline
                                      Louis-DT-WR
                                      wrote on last edited by
                                      #27

                                      I had to blank off the vacuum pipes on the carb and I also adjusted the autolube because of all my modifications

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                                      • Louis-DT-WRL Offline
                                        Louis-DT-WRL Offline
                                        Louis-DT-WR
                                        wrote on last edited by Louis-DT-WR
                                        #28

                                        I forgot to say that my DEP exhaust is for a wr200, so it's perfect for my bike. I had to make custom fixing and rubber mounts. Note how long the silencer was hahaha
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                                        1 Reply Last reply
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                                        • Louis-DT-WRL Offline
                                          Louis-DT-WRL Offline
                                          Louis-DT-WR
                                          wrote on last edited by Louis-DT-WR
                                          #29

                                          Dt125r dep and wr200 dep together. It looks like I'm punching it, can't remember the reason for that 😆
                                          alt text

                                          1 Reply Last reply
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