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DT125R FORUM

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  4. 2003 Yamaha Dt125R Project

2003 Yamaha Dt125R Project

Scheduled Pinned Locked Moved DTR
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  • Walney-ReptilesW Walney-Reptiles

    well guys for chrismas i got a PKW 32 keihin carb off my old man Looks mint he said its good for a 125cc upto a tuned 200cc 😄 will upload photos later on.

    O Offline
    O Offline
    oldman
    wrote on last edited by
    #54

    @Walney-Reptiles your dad is a good man!

    1 Reply Last reply
    1
    • Walney-ReptilesW Offline
      Walney-ReptilesW Offline
      Walney-Reptiles
      wrote on last edited by
      #55

      heres some photos all shiney and new 😄

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      1 Reply Last reply
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      • ChallengerC Offline
        ChallengerC Offline
        Challenger
        wrote on last edited by
        #56

        The carb looks tall for a DT, did you try fitting it already? Maybe only the gas linkage mount will need changing.

        1 Reply Last reply
        0
        • CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #57

          Should be okay, I don't recall there being height clearance issues when fitting the VHSA. Be good to see how this fairs up.

          Always Originate, Never Pirate!

          1 Reply Last reply
          2
          • T Offline
            T Offline
            theportingmaster
            wrote on last edited by
            #58

            Previously fitted a PWK 32 carb to a 2003 dt and the carb is quite small pictured next to a Mikuni TM 30. Fitted it to a modified 2003 dt inlet manifold, throttle cable outer needs shortening by 30mm carb end and with a warm air filter rubber fits over.
            1b.jpg
            1aa.jpg
            1a.jpg
            1c.jpg
            1d.jpg

            Walney-ReptilesW 1 Reply Last reply
            2
            • T theportingmaster

              Previously fitted a PWK 32 carb to a 2003 dt and the carb is quite small pictured next to a Mikuni TM 30. Fitted it to a modified 2003 dt inlet manifold, throttle cable outer needs shortening by 30mm carb end and with a warm air filter rubber fits over.
              1b.jpg
              1aa.jpg
              1a.jpg
              1c.jpg
              1d.jpg

              Walney-ReptilesW Offline
              Walney-ReptilesW Offline
              Walney-Reptiles
              wrote on last edited by
              #59

              @theportingmaster cheersa for your post mate ill have to stick with the PWK32 or now as it was a crimbo prezzie, what jet size did you use on the pwk on the 2003 dt? would be good to know. cheers buddy!

              1 Reply Last reply
              0
              • J Offline
                J Offline
                jonne123
                wrote on last edited by
                #60

                Do you recommend carbon fiber reeds?

                Walney-ReptilesW 1 Reply Last reply
                0
                • J jonne123

                  Do you recommend carbon fiber reeds?

                  Walney-ReptilesW Offline
                  Walney-ReptilesW Offline
                  Walney-Reptiles
                  wrote on last edited by Walney-Reptiles
                  #61

                  @jonne123 there,s a few topics on this site already buddy try reading through them, this is for posting about my progress on my project

                  https://dt125r.co.uk/topic/790/recommended-reeds

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                  0
                  • T Offline
                    T Offline
                    theportingmaster
                    wrote on last edited by
                    #62

                    Hi @Walney-Reptiles used a K135 main jet with a K38 slow jet fitted to a standard airbox. Bike had a Gianelli full system on it.

                    Walney-ReptilesW 1 Reply Last reply
                    0
                    • T Offline
                      T Offline
                      theportingmaster
                      wrote on last edited by
                      #63

                      Hi @jonne123 carbon reeds only make a difference really to fully modified engines when all other mods are done as it is a
                      combination of all tuning mods matched that makes a difference and carbon reeds do nothing for a standard engine.
                      I fit them to most engines I build as make them myself as easy to make them and cost around £1 a set to make.

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                      0
                      • T theportingmaster

                        Hi @Walney-Reptiles used a K135 main jet with a K38 slow jet fitted to a standard airbox. Bike had a Gianelli full system on it.

                        Walney-ReptilesW Offline
                        Walney-ReptilesW Offline
                        Walney-Reptiles
                        wrote on last edited by
                        #64

                        @theportingmaster said in 2003 Yamaha Dt125R Project:

                        K38 slow jet

                        cheers buddy, il be getting a limited edition stainless steel and silencer exhaust from portugal in the next few months, will upload photos when its arrived!

                        1 Reply Last reply
                        1
                        • Walney-ReptilesW Offline
                          Walney-ReptilesW Offline
                          Walney-Reptiles
                          wrote on last edited by Walney-Reptiles
                          #65

                          Soo i have come to a very hard decision and have somthink i need to say and i would like everyone that see's this to have a read

                          All of the above parts (forks, engine, carb, frame, wiring loom + other bits that are not on here,are going up for sale) any questions please ask

                          all stuff for sale (Buyer sorts courier or Collection)

                          Engine + Carb + Wiring loom Will be soild as one unit Open to Decent offers around £650

                          Engine (Fully rebuilt check the above posts out)
                          Carb PWK32 Keihin (Brand new never used)
                          Wiring loom + 3RM-20 CDI + PV servo (Wiring loom Needs a little work, no ignition switch, no indicator wiring as the loom was made bare for green laning less stuff togo wrong when out and off roading)

                          WR426F + aliminium adapter + New head set bearings dust sheilds and shims (No wheel or caliper or Disc) (also see posts above) (£160 OVNO)

                          WR 200 Swingarm + Caliper and Carrier £115 OVNO (Can get photos by Request) Open to offers

                          Frame + tank + Rad as it is Needs sand blasting and powder coating in buyers color choice, the frame has had nuts welded onto the original nuts where the original ones stripped out and has had the rear brake master cylinder mount reinforced with 4mm steel welded on Comes with V5 also has a WR125 Rad with rubber vibration mounts fitted and Red fan will need wiring up to the bike fitted to the standard rad mount tank still fits on with the plastics extra pipe fittings on the rad may need blanking off (Price will be how ever much the powder coating costs + £200) can get photos by request

                          Other bits i have are two rims front and rear they need blasting and powder coating no hubs no spokes i have New bearings for the DTR hubs can get photos by request... Open to offers

                          cant name all the parts i have off hand but if you want to know if i have a part ask and i will see if i have the parts

                          CalumC 1 Reply Last reply
                          0
                          • Walney-ReptilesW Walney-Reptiles

                            Soo i have come to a very hard decision and have somthink i need to say and i would like everyone that see's this to have a read

                            All of the above parts (forks, engine, carb, frame, wiring loom + other bits that are not on here,are going up for sale) any questions please ask

                            all stuff for sale (Buyer sorts courier or Collection)

                            Engine + Carb + Wiring loom Will be soild as one unit Open to Decent offers around £650

                            Engine (Fully rebuilt check the above posts out)
                            Carb PWK32 Keihin (Brand new never used)
                            Wiring loom + 3RM-20 CDI + PV servo (Wiring loom Needs a little work, no ignition switch, no indicator wiring as the loom was made bare for green laning less stuff togo wrong when out and off roading)

                            WR426F + aliminium adapter + New head set bearings dust sheilds and shims (No wheel or caliper or Disc) (also see posts above) (£160 OVNO)

                            WR 200 Swingarm + Caliper and Carrier £115 OVNO (Can get photos by Request) Open to offers

                            Frame + tank + Rad as it is Needs sand blasting and powder coating in buyers color choice, the frame has had nuts welded onto the original nuts where the original ones stripped out and has had the rear brake master cylinder mount reinforced with 4mm steel welded on Comes with V5 also has a WR125 Rad with rubber vibration mounts fitted and Red fan will need wiring up to the bike fitted to the standard rad mount tank still fits on with the plastics extra pipe fittings on the rad may need blanking off (Price will be how ever much the powder coating costs + £200) can get photos by request

                            Other bits i have are two rims front and rear they need blasting and powder coating no hubs no spokes i have New bearings for the DTR hubs can get photos by request... Open to offers

                            cant name all the parts i have off hand but if you want to know if i have a part ask and i will see if i have the parts

                            CalumC Offline
                            CalumC Offline
                            Calum
                            wrote on last edited by
                            #66

                            @Walney-Reptiles Ah sorry to hear this bud.

                            Can you not post in the for sale section?

                            Always Originate, Never Pirate!

                            Walney-ReptilesW 1 Reply Last reply
                            0
                            • CalumC Calum

                              @Walney-Reptiles Ah sorry to hear this bud.

                              Can you not post in the for sale section?

                              Walney-ReptilesW Offline
                              Walney-ReptilesW Offline
                              Walney-Reptiles
                              wrote on last edited by
                              #67

                              @Calum Il copy and paste it into the forsale section but id like to leave it in here too as all the pics etc... are in here

                              1 Reply Last reply
                              0
                              • L Offline
                                L Offline
                                Lukas
                                wrote on last edited by
                                #68

                                i know that this is quite a old conversation but if you still have the dt125 and you want more power, a yz125 1989-1993 engine atleast fits perfectly with the swingarm and you just have to make like 2 head mounts from sheet steel, i did that to mine cause well the cylinder fucked up and i had a yz laying around because i was doing a dyz project anyway, so i sold my other damaged dt125 frame and just built it in my main bike where i kept the dt frame for plates and the frame number and everything else on it is from a yz

                                1 Reply Last reply
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