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. DT 125 R '88... New project

DT 125 R '88... New project

Scheduled Pinned Locked Moved DTR
89 Posts 11 Posters 26.0k Views 1 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.
  • J jgr72

    How does the 2t oil hose connect to down end (pump side)? Silicone hose might be best... that tightens well and does not leak so easy than harder hoses...

    ZrakoZ Offline
    ZrakoZ Offline
    Zrako
    wrote on last edited by
    #17

    @jgr72 0_1494524512485_20170503_205236.jpg
    5min job . Just reuse the hose clamps or get some from ebay.

    1979 Jawa Mustang 50
    2003 Gilera DNA 125 R.I.P
    2015 Keeway TX 125 SM
    2006 Yamaha DT 125 X

    1 Reply Last reply
    1
    • J Offline
      J Offline
      jgr72
      wrote on last edited by jgr72
      #18

      Okey you did it that way 🙂

      Today I struggle with front brake pads... I've seen and changed various brake parts in various vehicles, and never been so hard... I don't know did I do something wrong or am I just stupid 😄 But now it's there... Maybe pad retaining spring wasn't in original shape anymore... I need to take it apart again, cause caliper seals ware so bad condition... Next step is to change rear tyre 🙂

      alt text

      1 Reply Last reply
      0
      • J Offline
        J Offline
        jgr72
        wrote on last edited by
        #19

        -New fork boots
        -new levers
        -new rear tyre

        Rear turning light apears to be loose 😄

        New sticer decals, transparent (2t) oil hose and a set of main jets ordered from ebay...

        alt text

        NINJAN 1 Reply Last reply
        3
        • J jgr72

          -New fork boots
          -new levers
          -new rear tyre

          Rear turning light apears to be loose 😄

          New sticer decals, transparent (2t) oil hose and a set of main jets ordered from ebay...

          alt text

          NINJAN Offline
          NINJAN Offline
          NINJA
          wrote on last edited by
          #20

          @jgr72 Looking good bud - nice work. 👍

          SEDUCED BY THE DARK SIDE!!!

          1 Reply Last reply
          0
          • CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #21

            Yeah that's looking smart.

            Always Originate, Never Pirate!

            1 Reply Last reply
            0
            • MightymanM Offline
              MightymanM Offline
              Mightyman
              wrote on last edited by
              #22

              You swapping to new graphics? The current ones you have are awsome!

              TDR 125 - 2001

              1 Reply Last reply
              0
              • J Offline
                J Offline
                jgr72
                wrote on last edited by
                #23

                I'm only changing that are broken or worn... And will replace them to exactly original.

                MightymanM 1 Reply Last reply
                1
                • J jgr72

                  I'm only changing that are broken or worn... And will replace them to exactly original.

                  MightymanM Offline
                  MightymanM Offline
                  Mightyman
                  wrote on last edited by
                  #24

                  @jgr72 nice 👍

                  TDR 125 - 2001

                  1 Reply Last reply
                  0
                  • J Offline
                    J Offline
                    jgr72
                    wrote on last edited by
                    #25

                    Few days ago I changed original snorkel to an DT230 Lanza version... Few decals arrived also from ebay... Not changing them now... later... maybe during winter... If I decide to take the bike in parts and do some painting to body and rear swing...

                    Been sitting in google for hours and days 😄 ... searching for something fun:
                    maybe I will change Gianelli exhaust, Athena 170cc cyl kit and mikuni TM30 carburetor during winter... Those shoud give me more pleasure to ride 🙂 And still keep original look... Need to work hard to make the money for that 😄 😄 😄

                    1 Reply Last reply
                    1
                    • J Offline
                      J Offline
                      jgr72
                      wrote on last edited by
                      #26

                      A little update... Today I fixed front brake... Sealing was worn, and it would be only matter of time, when the brake cylinder would stuck totally... It was already a bit lazy I think... I did it just in time, there ware some corrosion in brake caliper, but I used sand paper and decide that it's still useful... Piston was in excellent condition... Old brake fluid was quite black and shitty... perhaps original and nearly 30 years old? Then caliper rebuild with new sealing and gasket... Tomorrow I have to bleed air away from the system... It looks like I have to use pressured air to force brake fluid into caliper... Brake lever is now doing nothing 😄 Sorry that I was too lazy to take any photos...

                      I found myself from ordering a new carb... Mikuni TM30... and it's on the way already 😛 And earlier I also ordered DT230 Lanza version of carburetor -> air box joint... Lanza item should be direct fit to TM30 carb and maybe some minor modification to the original air box... On the engine side, the diameter difference (VM28 vs TM30) is only 1mm bigger, I assume it will fit to the original intake rubber... TM30 is also 5mm longer, but that shouldn't be any problem...

                      Anyone have idea for right main jet? 160? 170? 180?

                      Silocone tubes arrived yesterday, I will replace all 2-stroke oil feed tubes from oiltank, to carb...

                      1 Reply Last reply
                      1
                      • J Offline
                        J Offline
                        jgr72
                        wrote on last edited by
                        #27

                        Today I changed leaking autolube hoses to a silicone one... I ordered them from ebay many weeks ago and they arrived few days ago... It was an easy job to do. Tank to autolube pump hose was nice fit with 5mm silicone hose. Autolube pump to carb was nice fit with 3mm hose. But be aware if you bleed whole pump empty, it might not be able to suck oil from tank!!! Be careful when you start the engine!!! I have to squirt oil direct in to the pump and open air screw in order to get the air out from the pump. Here are from photos from that job...

                        Dissolution:
                        alt text

                        Pump to carb hose size:
                        alt text

                        Tank to pump hose:
                        alt text

                        Pump to carb hose in place:
                        alt text

                        Tank to pump hose in place:
                        alt text

                        Ready to ride:
                        alt text

                        CalumC 1 Reply Last reply
                        2
                        • J jgr72

                          Today I changed leaking autolube hoses to a silicone one... I ordered them from ebay many weeks ago and they arrived few days ago... It was an easy job to do. Tank to autolube pump hose was nice fit with 5mm silicone hose. Autolube pump to carb was nice fit with 3mm hose. But be aware if you bleed whole pump empty, it might not be able to suck oil from tank!!! Be careful when you start the engine!!! I have to squirt oil direct in to the pump and open air screw in order to get the air out from the pump. Here are from photos from that job...

                          Dissolution:
                          alt text

                          Pump to carb hose size:
                          alt text

                          Tank to pump hose:
                          alt text

                          Pump to carb hose in place:
                          alt text

                          Tank to pump hose in place:
                          alt text

                          Ready to ride:
                          alt text

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #28

                          @jgr72 Nice clear lionesis what I like to see.

                          Keeping an eye on that oil 😉

                          Always Originate, Never Pirate!

                          1 Reply Last reply
                          1
                          • J Offline
                            J Offline
                            jgr72
                            wrote on last edited by jgr72
                            #29

                            Yeah, actually it was nice to see how the oil travels in pump to carb hose... I had red oil and air in that hose, and it travels with a rythm 💃 And it was easy to see how it works when you rev the engine...

                            1 Reply Last reply
                            3
                            • MightymanM Offline
                              MightymanM Offline
                              Mightyman
                              wrote on last edited by
                              #30

                              Very nice, hopefully others can come across this thread if they want to swap their own hoses out for clear ones. 👍

                              TDR 125 - 2001

                              1 Reply Last reply
                              0
                              • J Offline
                                J Offline
                                jgr72
                                wrote on last edited by
                                #31

                                Thats why I took those photos! Internet is a information source 🙂

                                1 Reply Last reply
                                0
                                • J Offline
                                  J Offline
                                  jgr72
                                  wrote on last edited by
                                  #32

                                  Santa Claus came early this year 🙂 I received TM30 & 230 Lanza air joint in a same day 🙂 It's a great match with those two! Let's see later how it will fit into DT125R airbox 😄 Sadly I don't have any main jets between 150 and 200 range... I've been told that 170 might be right main jet to start from... Also need to drill a hole to the TM30 for oil feed anyway, and don't have that hose nose yet... I'll come later on with pics when I'm installing that... Here are some pictures of todays treasure:

                                  Yamaha DT 230 Lanza carburetor -> air box joint:
                                  alt text

                                  It a great match together:
                                  alt text

                                  alt text

                                  alt text

                                  alt text

                                  CalumC 1 Reply Last reply
                                  4
                                  • J jgr72

                                    Santa Claus came early this year 🙂 I received TM30 & 230 Lanza air joint in a same day 🙂 It's a great match with those two! Let's see later how it will fit into DT125R airbox 😄 Sadly I don't have any main jets between 150 and 200 range... I've been told that 170 might be right main jet to start from... Also need to drill a hole to the TM30 for oil feed anyway, and don't have that hose nose yet... I'll come later on with pics when I'm installing that... Here are some pictures of todays treasure:

                                    Yamaha DT 230 Lanza carburetor -> air box joint:
                                    alt text

                                    It a great match together:
                                    alt text

                                    alt text

                                    alt text

                                    alt text

                                    CalumC Offline
                                    CalumC Offline
                                    Calum
                                    wrote on last edited by
                                    #33

                                    @jgr72 Looking good buddy!

                                    Always Originate, Never Pirate!

                                    1 Reply Last reply
                                    0
                                    • A Offline
                                      A Offline
                                      andrewj1680
                                      wrote on last edited by
                                      #34

                                      How did this setup workout for you?

                                      1 Reply Last reply
                                      0
                                      • J Offline
                                        J Offline
                                        jgr72
                                        wrote on last edited by
                                        #35

                                        Actually I haven't tried it yet... But it supposed to be a good setup!? Original carb feels a bit out of right setup... It feels rich in mid rev and it won't rev above 8k... top speed is hardly 110km/h. But I have no intention to do anything for it... new carb is only waiting to "step in" 😄

                                        Still waiting for that oil hose nose from ebay... It's taking many weeks from china to europe sometimes... Meanwhile I had to do something... I drilled a 2.5mm hole for oil feed hose nose and tapped M3 threads with a screw drive style handle... M3 is so small and alu so soft that it was an easy to turn...

                                        alt text

                                        alt text

                                        1 Reply Last reply
                                        1
                                        • J Offline
                                          J Offline
                                          jgr72
                                          wrote on last edited by
                                          #36

                                          Finally hose noses arrived:

                                          I bought few of them in case I need one in future...

                                          alt text

                                          There it is... I also added some "thread glue":

                                          alt text

                                          alt text/20170704_092559.jpg)

                                          alt text

                                          Okey, now I have all I need to change the carb. But how about the carb throttle cable? Is it a straight swap, or do I have to make some modifications? I've been trying to find answers from google...

                                          declanD 1 Reply Last reply
                                          1
                                          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