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DT125R FORUM

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  4. 2003 Yamaha Dt125R Project

2003 Yamaha Dt125R Project

Scheduled Pinned Locked Moved DTR
68 Posts 14 Posters 8.1k Views
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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!

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          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

              1 Reply Last reply
              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.

                  1 Reply Last reply
                  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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