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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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  • B Offline
    B Offline
    Biker_123
    wrote on 21 Feb 2016, 13:59 last edited by
    #7

    This bike is looking stunning @Louis-James !!! 😍 good job

    Every problem has a solution

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      Leftyno1
      wrote on 21 Feb 2016, 14:17 last edited by
      #8

      Respect on the project great work, is the zeeltronic as good as everyone says, have heard only good things.

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        Louis-DT-WR
        wrote on 21 Feb 2016, 15:07 last edited by Louis-DT-WR 4 Sept 2017, 18:02
        #9

        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

        C A 2 Replies Last reply 21 Feb 2016, 16:45
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        • L Louis-DT-WR
          21 Feb 2016, 15:07

          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

          C Offline
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          Calum
          wrote on 21 Feb 2016, 16:45 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!

          L 1 Reply Last reply 21 Feb 2016, 18:16
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          • C Offline
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            ConnorDTR
            wrote on 21 Feb 2016, 17:41 last edited by
            #11

            That is ridiculously clean! Looking good

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            • C Calum
              21 Feb 2016, 16:45

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

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              Louis-DT-WR
              wrote on 21 Feb 2016, 18:16 last edited by
              #12

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

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                Louis-DT-WR
                wrote on 21 Feb 2016, 20:03 last edited by Louis-DT-WR 4 Sept 2017, 18:02
                #13

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

                L 1 Reply Last reply 21 Feb 2016, 20:12
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                • L Offline
                  L Offline
                  Louis-DT-WR
                  wrote on 21 Feb 2016, 20:05 last edited by
                  #14
                  This post is deleted!
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                  • L Louis-DT-WR
                    21 Feb 2016, 20:03

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

                    Enlarging the transfer ports
                    alt text

                    alt text

                    L Offline
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                    Louis-DT-WR
                    wrote on 21 Feb 2016, 20:12 last edited by Louis-DT-WR 4 Sept 2017, 18:01
                    #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

                    L 1 Reply Last reply 21 Feb 2016, 20:15
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                    • L Louis-DT-WR
                      21 Feb 2016, 20:12

                      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

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                      Louis-DT-WR
                      wrote on 21 Feb 2016, 20:15 last edited by Louis-DT-WR 4 Sept 2017, 18:00
                      #16

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

                      alt text

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                      • L Offline
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                        Louis-DT-WR
                        wrote on 21 Feb 2016, 20:18 last edited by Louis-DT-WR 4 Sept 2017, 17:58
                        #17

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

                        alt text
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                          Louis-DT-WR
                          wrote on 21 Feb 2016, 20:22 last edited by Louis-DT-WR 4 Sept 2017, 17:57
                          #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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                            Louis-DT-WR
                            wrote on 22 Feb 2016, 12:08 last edited by Louis-DT-WR 4 Sept 2017, 17:56
                            #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

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                              Louis-DT-WR
                              wrote on 22 Feb 2016, 12:12 last edited by Louis-DT-WR 4 Sept 2017, 17:53
                              #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

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                                Louis-DT-WR
                                wrote on 22 Feb 2016, 12:16 last edited by Louis-DT-WR 4 Sept 2017, 17:52
                                #21

                                See what I mean?
                                alt text

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                                  Louis-DT-WR
                                  wrote on 22 Feb 2016, 12:18 last edited by Louis-DT-WR 4 Sept 2017, 17:51
                                  #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

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                                    Louis-DT-WR
                                    wrote on 22 Feb 2016, 12:35 last edited by Louis-DT-WR 4 Sept 2017, 17:51
                                    #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

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                                      Louis-DT-WR
                                      wrote on 22 Feb 2016, 12:40 last edited by Louis-DT-WR 4 Sept 2017, 17:50
                                      #24

                                      alt text
                                      alt text

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

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                                        Louis-DT-WR
                                        wrote on 22 Feb 2016, 12:45 last edited by Louis-DT-WR 4 Sept 2017, 17:49
                                        #25

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

                                        alt text
                                        alt text

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                                          Louis-DT-WR
                                          wrote on 22 Feb 2016, 12:48 last edited by Louis-DT-WR 4 Sept 2017, 17:48
                                          #26

                                          A few pictures of it fitted.
                                          alt text
                                          alt text

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