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DT125R FORUM

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  4. So Close!...

So Close!...

Scheduled Pinned Locked Moved DTR
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  • S SpookDog

    2170 miles since the rebuild and all is well. Zips up to & cruises @ 60mph (@6000rpm) so smooth and quick if there’s no headwinds!😜

    Gonna try the Exol synthetic and see how it stands up to castrol1 and silcolene comp2...

    Ordered the Brembo carbon ceramic pads for the rear and am gonna fit them with the front calliper with the new bigger diameter master cylinder...

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    SpookDog
    wrote on last edited by
    #273

    @SpookDog

    2320 miles with no head blown! I’m officially calling it FIXED!! All caused by a too small pilot jet, un~fucking believable 🙄 Now I can get a rebore & new piston (that I trust completely) and get on with other jobs needing doing, like forks, paint, exhaust, new 6 foot friendly seat, new loom, ect 😜

    CalumC 1 Reply Last reply
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    • S SpookDog

      @SpookDog

      2320 miles with no head blown! I’m officially calling it FIXED!! All caused by a too small pilot jet, un~fucking believable 🙄 Now I can get a rebore & new piston (that I trust completely) and get on with other jobs needing doing, like forks, paint, exhaust, new 6 foot friendly seat, new loom, ect 😜

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #274

      @SpookDog 6 foot friendly seat? I had shorter dog bones made which jacked up the height of my bike. Roughly 10mm shorter than standard raised it sufficiently enough for me and I am 1.88m ~ 6"1

      Always Originate, Never Pirate!

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      • CalumC Calum

        @SpookDog 6 foot friendly seat? I had shorter dog bones made which jacked up the height of my bike. Roughly 10mm shorter than standard raised it sufficiently enough for me and I am 1.88m ~ 6"1

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        SpookDog
        wrote on last edited by
        #275

        @Calum

        Jacking it would only make it worse for me. It’s the slipping down & forwards that stretches out my butt & boys. I need a higher, better padded/supported front to my seat. My but fits onto the spot where the soft thicker front foam levels out onto the thinner padded rear. There’s a ridge there I think...

        Don’t RE’s have different tank, seat, config than the Dtr? I’m guessing they improved it...

        markus.wM 1 Reply Last reply
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        • S SpookDog

          @Calum

          Jacking it would only make it worse for me. It’s the slipping down & forwards that stretches out my butt & boys. I need a higher, better padded/supported front to my seat. My but fits onto the spot where the soft thicker front foam levels out onto the thinner padded rear. There’s a ridge there I think...

          Don’t RE’s have different tank, seat, config than the Dtr? I’m guessing they improved it...

          markus.wM Offline
          markus.wM Offline
          markus.w
          wrote on last edited by
          #276

          @SpookDog the forward most lowest part of the seat is where you should be sitting with you inside leg squeezing the tank for ultimate control/stability. But sounds to me like this part is too low for you? The dt125r seat height is 840mm/33inches, and the dt125re is 915mm/36inches so considerably taller. You can swap the seats as I've seen it done but you'd need to also swap the tank and all panels. A bit extreme though for a classic bike. Alternatively remove the seat cover and pack it up with a bit of memory foam or similar. Probably then best to fit a new seat cover.

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          • markus.wM markus.w

            @SpookDog the forward most lowest part of the seat is where you should be sitting with you inside leg squeezing the tank for ultimate control/stability. But sounds to me like this part is too low for you? The dt125r seat height is 840mm/33inches, and the dt125re is 915mm/36inches so considerably taller. You can swap the seats as I've seen it done but you'd need to also swap the tank and all panels. A bit extreme though for a classic bike. Alternatively remove the seat cover and pack it up with a bit of memory foam or similar. Probably then best to fit a new seat cover.

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            SpookDog
            wrote on last edited by SpookDog
            #277

            @markus-w

            If I sit there my knees are too far forward. My elbows stick out like chicken wings. Also my ankles won’t let my feet bend up enough to operate the gearshift. I just can’t fold myself up enough, imagine like a clown on a mini bike! But squatting for a dump 🙄

            Cheers for the RE info. I didn’t realise the tank, seat & panels could be fitted to a dtr I thought the exhaust was different as well?...

            markus.wM 1 Reply Last reply
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            • S SpookDog

              @markus-w

              If I sit there my knees are too far forward. My elbows stick out like chicken wings. Also my ankles won’t let my feet bend up enough to operate the gearshift. I just can’t fold myself up enough, imagine like a clown on a mini bike! But squatting for a dump 🙄

              Cheers for the RE info. I didn’t realise the tank, seat & panels could be fitted to a dtr I thought the exhaust was different as well?...

              markus.wM Offline
              markus.wM Offline
              markus.w
              wrote on last edited by
              #278

              @SpookDog slight difference in the exhaust, mainly the bracket near the radiator which can be easily adapted with a little spacer but there would be no need to change the exhaust. Have you considered wider bars with risers and rotate the gear lever forward on the teeth by 15-20 degrees?

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              • markus.wM markus.w

                @SpookDog slight difference in the exhaust, mainly the bracket near the radiator which can be easily adapted with a little spacer but there would be no need to change the exhaust. Have you considered wider bars with risers and rotate the gear lever forward on the teeth by 15-20 degrees?

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                SpookDog
                wrote on last edited by
                #279

                @markus-w

                Good ideas but the foot pegs are just too far back for my frame. I have plans for a custom seat. I have 2 spare bases and 1 spare foam. It’s just pretty low on my priorities at the mojo. I will get round to it though 🙂
                Cheers bud

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                • S SpookDog

                  @markus-w

                  Good ideas but the foot pegs are just too far back for my frame. I have plans for a custom seat. I have 2 spare bases and 1 spare foam. It’s just pretty low on my priorities at the mojo. I will get round to it though 🙂
                  Cheers bud

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                  SpookDog
                  wrote on last edited by SpookDog
                  #280

                  3077 miles and all is well with my head 🥴

                  I’m getting the odd cloud of blue smoke when I open it up after a while of riding though. I ride conservatively most of the time not going above 6000rpm’s, but when I do I get a hellavu cloud of smoke, enough to notice in the mirrors! I’ve noticed it before but usually it’s when I’m at 70 in 5th. The engine doesn’t ‘chug’ or drop off revs at all. Today though it did it when I dropped a gear to overtake at about 50mph, I didn’t notice the rpm, just the cloud of smoke in my mirrors!...
                  Anyone else notice this with their bikes? Is it normal? Or do I have a brake pedal side crank seal problem? Any input is appreciated 👍 ...

                  It doesn’t do it every time. Just the odd time after riding ‘gently’

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                  • S SpookDog

                    3077 miles and all is well with my head 🥴

                    I’m getting the odd cloud of blue smoke when I open it up after a while of riding though. I ride conservatively most of the time not going above 6000rpm’s, but when I do I get a hellavu cloud of smoke, enough to notice in the mirrors! I’ve noticed it before but usually it’s when I’m at 70 in 5th. The engine doesn’t ‘chug’ or drop off revs at all. Today though it did it when I dropped a gear to overtake at about 50mph, I didn’t notice the rpm, just the cloud of smoke in my mirrors!...
                    Anyone else notice this with their bikes? Is it normal? Or do I have a brake pedal side crank seal problem? Any input is appreciated 👍 ...

                    It doesn’t do it every time. Just the odd time after riding ‘gently’

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                    SpookDog
                    wrote on last edited by
                    #281

                    MOT time today! And my bike has decided it’s not gonna rev above 6k anysense! Seems the power valve is sticky/gummed up in the barrel. I’m gonna strip it and clean it after the mot. Does this happen often or just after I started using different 2stroke oil?! 😐

                    CalumC S 2 Replies Last reply
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                    • S SpookDog

                      MOT time today! And my bike has decided it’s not gonna rev above 6k anysense! Seems the power valve is sticky/gummed up in the barrel. I’m gonna strip it and clean it after the mot. Does this happen often or just after I started using different 2stroke oil?! 😐

                      CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #282

                      @SpookDog I have never had it happen to me in 12 years of ownership.

                      Always Originate, Never Pirate!

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                      • S SpookDog

                        MOT time today! And my bike has decided it’s not gonna rev above 6k anysense! Seems the power valve is sticky/gummed up in the barrel. I’m gonna strip it and clean it after the mot. Does this happen often or just after I started using different 2stroke oil?! 😐

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                        Scootjockey
                        wrote on last edited by
                        #283

                        @SpookDog
                        The servo motor is ok isn’t it ? For the powervalve to be gummed up and it’s not opening is a bit suspect, as the servo can apply quite a bit of force and if it’s not it might on its way out. ? Then again is the battery ok and alternator charging ok ?

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                        • S Scootjockey

                          @SpookDog
                          The servo motor is ok isn’t it ? For the powervalve to be gummed up and it’s not opening is a bit suspect, as the servo can apply quite a bit of force and if it’s not it might on its way out. ? Then again is the battery ok and alternator charging ok ?

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                          SpookDog
                          wrote on last edited by
                          #284

                          @Scootjockey

                          It was proper sticky with black crud. Cleaned it up with some degreasant. I’ll have to keep my eye on it in the near future...

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                          • S SpookDog

                            @Scootjockey

                            It was proper sticky with black crud. Cleaned it up with some degreasant. I’ll have to keep my eye on it in the near future...

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                            Scootjockey
                            wrote on last edited by
                            #285

                            @SpookDog
                            I’d imagine that was due to carbon build up and the change in oil, just goes to show 2 strokes are fickle things and need regular TLC to be kept up to speed

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                            • S Scootjockey

                              @SpookDog
                              I’d imagine that was due to carbon build up and the change in oil, just goes to show 2 strokes are fickle things and need regular TLC to be kept up to speed

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                              SpookDog
                              wrote on last edited by
                              #286

                              @Scootjockey
                              Yeah. The engine seems to run fine (even good!) with the 2T synthetic oil I’ve been using. It’s only the power valve that’s suffering. Also I wasn’t sent the Oil I was expecting, I ended up with ‘Smith Alan’. I didn’t take any notice of the packaging, just that it was synthetic and approved. My embarrassing fuckup!...
                              I’m going back to Castrol for the foreseeable future...

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                              • S SpookDog

                                @Scootjockey
                                Yeah. The engine seems to run fine (even good!) with the 2T synthetic oil I’ve been using. It’s only the power valve that’s suffering. Also I wasn’t sent the Oil I was expecting, I ended up with ‘Smith Alan’. I didn’t take any notice of the packaging, just that it was synthetic and approved. My embarrassing fuckup!...
                                I’m going back to Castrol for the foreseeable future...

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                                SpookDog
                                wrote on last edited by
                                #287

                                The power valve started sticking again a day after. I switched back to castrol R1 and it has cleared up nicely...

                                The bike itself ran fine with the oil, it was just the power valve was gumming up with a thick, sticky varnish. Not power valve friendly! I still want to try Exol oil at some point...

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                                • CalumC Calum

                                  @SpookDog The bleed nipple should be backed off when retracting the pistons, you risk damaging something otherwise.

                                  On cars, with solid brake lines, the bleed nipple should be backed off else risking rupting a solid line.

                                  declanD Offline
                                  declanD Offline
                                  declan
                                  wrote on last edited by
                                  #288

                                  @Calum i once cracked a caliper not loosening the master cylinder cap not my finest moment

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                                  • declanD declan

                                    @Calum i once cracked a caliper not loosening the master cylinder cap not my finest moment

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                                    SpookDog
                                    wrote on last edited by
                                    #289

                                    Stripped and replaced the clutch side main oil seal. It looked fine, but on removal there was gear oil on the bottom of the main bearing. Brown, not red...

                                    Bike definitely feels different as well. The tick over has altered so I’m gonna have to tweak the airscrew, which I don’t think I’m very good at 🙄 The revs seem to pick up much ‘cleaner’ as well...

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                                    • S SpookDog

                                      Stripped and replaced the clutch side main oil seal. It looked fine, but on removal there was gear oil on the bottom of the main bearing. Brown, not red...

                                      Bike definitely feels different as well. The tick over has altered so I’m gonna have to tweak the airscrew, which I don’t think I’m very good at 🙄 The revs seem to pick up much ‘cleaner’ as well...

                                      S Offline
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                                      SpookDog
                                      wrote on last edited by
                                      #290

                                      Also replaced the EBC uprated clutch springs with the original ones, the clutch is as light as a feather!. Downshifting is a lot less clunky since I adjusted the basket/pressure plate 👍 ...

                                      Also my progressive springs have finally arrived and been posted! I really want a second hand set of forks to use either for the upgrade, or to use while the others are stripped for powder coating, ect...

                                      CalumC 1 Reply Last reply
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                                      • S SpookDog

                                        Also replaced the EBC uprated clutch springs with the original ones, the clutch is as light as a feather!. Downshifting is a lot less clunky since I adjusted the basket/pressure plate 👍 ...

                                        Also my progressive springs have finally arrived and been posted! I really want a second hand set of forks to use either for the upgrade, or to use while the others are stripped for powder coating, ect...

                                        CalumC Offline
                                        CalumC Offline
                                        Calum
                                        wrote on last edited by
                                        #291

                                        @SpookDog Oh awesome, I run the EBC Springs and after a short while of riding I don't bother with the clutch, just let off the throttle.

                                        The problem I was worried about was once you start increasing the vehicles power you may run into clutch troubles. But total overkill for stock systems.

                                        Always Originate, Never Pirate!

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                                        • CalumC Calum

                                          @SpookDog Oh awesome, I run the EBC Springs and after a short while of riding I don't bother with the clutch, just let off the throttle.

                                          The problem I was worried about was once you start increasing the vehicles power you may run into clutch troubles. But total overkill for stock systems.

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                                          SpookDog
                                          wrote on last edited by
                                          #292

                                          @Calum
                                          My thinking was that an unrestricted motor might need uprated springs, but it seems absolutely fine with standard springs...

                                          The HyperPro springs actually look like a top knotch product. I was a bit dubious at first, like I am with any fleabay listing, but they come with copious instructions, fork oil & fork grease for the bottom of the stantions that sit in the lower legs. Plus they are properly well packaged...
                                          Made in 🇳🇱 Holland for 89 ~ 06 model Dtr/e’s, which was one of my worries 😜 ...

                                          S 1 Reply Last reply
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