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DT125R FORUM

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  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
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  • J Offline
    J Offline
    jgr72
    wrote on last edited by
    #10

    Do I need to change whole engine? is it possible to just change cylinder/piston? Or does 200 have longer stroke (different crank)?

    declanD 1 Reply Last reply
    0
    • J jgr72

      Do I need to change whole engine? is it possible to just change cylinder/piston? Or does 200 have longer stroke (different crank)?

      declanD Offline
      declanD Offline
      declan
      wrote on last edited by
      #11

      @jgr72 wouldn't have a clue mate

      1 Reply Last reply
      0
      • J jgr72

        About a week ago, I bought new project for me 🙂 My plan and idea is to keep this as original looking as possible, and maybe try to get museum register for it. That's why I'd like to change exhaust to as original look as possible... maybe gianelli painted black!? Now bike is running quite well, and papers claim it has 17kw... I think I will just ride the next summer, and take it to parts during next winter...

        here are few photos:

        alt text

        alt text

        NINJAN Offline
        NINJAN Offline
        NINJA
        wrote on last edited by
        #12

        @jgr72 Looks nice and tidy, with some minor work she would look mint in no time bud. 😉

        SEDUCED BY THE DARK SIDE!!!

        1 Reply Last reply
        0
        • DartyD Offline
          DartyD Offline
          Darty
          wrote on last edited by
          #13

          What a gem!

          Keep it real

          1 Reply Last reply
          0
          • J Offline
            J Offline
            jgr72
            wrote on last edited by
            #14

            Thanks 🙂 photos will lie, it's not that good looking IRL, but best that i've have seen for some time... there are some scratses in plastics etc...

            Today, I changed fork boots (progrip, I order them from ebay.co.uk), it was an easy job... Few days ago I changed brake and cluth lever blades, brake was missing the ball on the outer end, and both was wrong color, they should be black and thet ware aluminium-color...

            Next step is to find where it's leaking oil... at least 2t oil tank is leaking, If I'm not able to find new hoses I think I will empty the tank and add oil into the gasoline, and forget the original 2t oil supply system...

            ZrakoZ 1 Reply Last reply
            0
            • J jgr72

              Thanks 🙂 photos will lie, it's not that good looking IRL, but best that i've have seen for some time... there are some scratses in plastics etc...

              Today, I changed fork boots (progrip, I order them from ebay.co.uk), it was an easy job... Few days ago I changed brake and cluth lever blades, brake was missing the ball on the outer end, and both was wrong color, they should be black and thet ware aluminium-color...

              Next step is to find where it's leaking oil... at least 2t oil tank is leaking, If I'm not able to find new hoses I think I will empty the tank and add oil into the gasoline, and forget the original 2t oil supply system...

              ZrakoZ Offline
              ZrakoZ Offline
              Zrako
              wrote on last edited by
              #15

              @jgr72 Im changed oil hoses for clear ones from halfords . Cost me like £5 or less.

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

              J 1 Reply Last reply
              0
              • ZrakoZ Zrako

                @jgr72 Im changed oil hoses for clear ones from halfords . Cost me like £5 or less.

                J Offline
                J Offline
                jgr72
                wrote on last edited by
                #16

                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 1 Reply Last reply
                0
                • 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 Online
                          CalumC Online
                          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 Online
                                        CalumC Online
                                        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
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