Skip to content
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (Slate)
  • No Skin
Collapse
Brand Logo

DT125R FORUM

  1. Home
  2. Owners Build Threads
  3. DTR
  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
254 Posts 25 Posters 158.1k Views 6 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • ConnorDTRC Offline
    ConnorDTRC Offline
    ConnorDTR
    wrote on last edited by
    #11

    That is ridiculously clean! Looking good

    1 Reply Last reply
    0
    • 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

      1 Reply Last reply
      0
      • Louis-DT-WRL Offline
        Louis-DT-WRL Offline
        Louis-DT-WR
        wrote on last edited by Louis-DT-WR
        #13

        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 1 Reply Last reply
        0
        • 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
          0
          • 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
            0
            • 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
              alt text

              alt text
              The new piston
              alt text

              Powdercoated in my favorite colours

              alt text

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

                Old vs new haha
                alt text
                Née crank bearings
                alt text

                alt text
                Test fit (I later had the crankcases sprayed) alt text

                alt text
                alt text

                1 Reply Last reply
                1
                • 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.
                  alt text

                  alt text

                  Here's it built up (not using the tmx30 anymore)
                  alt text

                  alt text
                  alt text

                  1 Reply Last reply
                  1
                  • 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
                    0
                    • 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
                      0
                      • 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
                        0
                        • 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
                          0
                          • 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
                            0
                            • 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
                              0
                              • 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
                                0
                                • 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

                                  1 Reply Last reply
                                  0
                                  • 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

                                    1 Reply Last reply
                                    0
                                    • 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
                                      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 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
                                        0
                                        • Louis-DT-WRL Offline
                                          Louis-DT-WRL Offline
                                          Louis-DT-WR
                                          wrote on last edited by Louis-DT-WR
                                          #30

                                          The silencer was a bit long 😉
                                          alt text

                                          alt text

                                          So I cut it down, I'm after a different end cap if anyone has one spare?
                                          alt text

                                          1 Reply Last reply
                                          0
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups