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DT125R FORUM

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  4. So Close!...

So Close!...

Scheduled Pinned Locked Moved DTR
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  • CalumC Online
    CalumC Online
    Calum
    wrote on last edited by Calum
    #524

    Yeah, ideally you'd clear your computers cache settings as it does try to be clever and preserve the last theme from a specific software version. This causes problems where by the code has changed, but your browser has cached certain parts of the website, resulting in a conflict of information. It should fix itself when the cache expires.

    The main thing is we've moved to Bootstrap 5 now.

    Always Originate, Never Pirate!

    1 Reply Last reply
    0
    • HOTSHOT IIIH Offline
      HOTSHOT IIIH Offline
      HOTSHOT III
      wrote on last edited by
      #525

      @Calum , since the format changed I've not been receiving notifications about unread posts/reactions to replies etc. Is there something I can change on my PC to sort this? Still running Windows 7 so as you can imagine I'm sat here jumping on my stove pipe hat like an irate Victorian railway engineer.

      CalumC 1 Reply Last reply
      0
      • HOTSHOT IIIH HOTSHOT III

        @Calum , since the format changed I've not been receiving notifications about unread posts/reactions to replies etc. Is there something I can change on my PC to sort this? Still running Windows 7 so as you can imagine I'm sat here jumping on my stove pipe hat like an irate Victorian railway engineer.

        CalumC Online
        CalumC Online
        Calum
        wrote on last edited by
        #526

        @HOTSHOT-III So long as you are using a modern browser and not Internet Explorer you should be fine. Try clearing the browsers cache.

        Always Originate, Never Pirate!

        HOTSHOT IIIH 1 Reply Last reply
        1
        • CalumC Calum

          @HOTSHOT-III So long as you are using a modern browser and not Internet Explorer you should be fine. Try clearing the browsers cache.

          HOTSHOT IIIH Offline
          HOTSHOT IIIH Offline
          HOTSHOT III
          wrote on last edited by
          #527

          @Calum It's working now, very strange as I've been keeping an eye on it since my TSE250 engine thread the other day. Maybe it just took your reply this morning for my software to recognise it. Anyway thanks for responding 👍

          1 Reply Last reply
          1
          • S Offline
            S Offline
            SpookDog
            wrote on last edited by SpookDog
            #528

            Any of you arcane knowledged fuxors out there know where to get hold of the kind of seals needed to rebuild a rear shock? I know that they are specialised & not ‘mainstream’, but I know they are made and available to people (especially in the business) if you know where to look. Anyone know where to look?…
            🙂
            Ta!…

            PS can anybod tell me what the process is called where you cut metal with a water jet? Or even the plasma (maybe?) technique? I’d like to find out about cutting sheet stainless or high carbon steel sheet …

            1 Reply Last reply
            0
            • S Offline
              S Offline
              SpookDog
              wrote on last edited by
              #529

              Got a bargain £32.50 crank from fleabay! It looks like it’s been cleaned (acid) before having a new conrod fitted! I’ve never seen a crank with so little play, even side to side 🙂 have everything new now apart from the clutch actuator bearing, which I’m going to fit a good used one to unless anyone knows the size?…
              PS how to load pics? I have no button or options…

              1 Reply Last reply
              0
              • CalumC Online
                CalumC Online
                Calum
                wrote on last edited by
                #530

                You just do the same as you always do, but by default the "advanced" editor is hidden. But it's just Markdown so you just write it inline

                ![](http://example.com/example.png)

                Markdown Cheat Sheet

                Always Originate, Never Pirate!

                S 1 Reply Last reply
                0
                • CalumC Calum

                  You just do the same as you always do, but by default the "advanced" editor is hidden. But it's just Markdown so you just write it inline

                  ![](http://example.com/example.png)

                  Markdown Cheat Sheet

                  S Offline
                  S Offline
                  SpookDog
                  wrote on last edited by
                  #531

                  @Calum

                  Cheers bud!
                  WTF? It’s in the top banner above the ‘typing area’ now! 😛 I must of been using the quick post option…

                  alt text

                  alt text

                  S 1 Reply Last reply
                  0
                  • S SpookDog

                    @Calum

                    Cheers bud!
                    WTF? It’s in the top banner above the ‘typing area’ now! 😛 I must of been using the quick post option…

                    alt text

                    alt text

                    S Offline
                    S Offline
                    SpookDog
                    wrote on last edited by
                    #532

                    Just try to buy a set of early matching casings for the engine build. The serial number is some zeros that end in 654. So I’m guessing that they’re quite early!
                    Wish me luck!!

                    1 Reply Last reply
                    1
                    • CalumC Online
                      CalumC Online
                      Calum
                      wrote on last edited by
                      #533

                      Crank looks good bud, what's the crank float on it?

                      Are the threads intact?

                      Do you know what rod has been used?

                      Always Originate, Never Pirate!

                      1 Reply Last reply
                      0
                      • S Offline
                        S Offline
                        SpookDog
                        wrote on last edited by SpookDog
                        #534

                        Rod has 2rh on it like a standard one (?)…

                        Threads are good, there’s just a bit of a ‘knurled’ over end on the inside of the hollow bit on the stator side. Someone hammered on it (a bit) in the past…

                        It doesn’t float, it sank when I put it in a bucket of water 🙂 …
                        Sorry! It’s virtually nothing. I’ll measure it later when I’m sober 🥴 but it’s tight…

                        I noticed the two heat spots on the topside of where the centre pin is and thought it had work done on it. I don’t know whether they heat the sides to split the crank or assemble it, I’m guessing they split it. The spots look well defined so I thought it was someone who knew what they were doing. Hopefully! 😵‍💫 …

                        But seriously it looks good. About time I had some good luck ☠️

                        S 1 Reply Last reply
                        0
                        • S SpookDog

                          Rod has 2rh on it like a standard one (?)…

                          Threads are good, there’s just a bit of a ‘knurled’ over end on the inside of the hollow bit on the stator side. Someone hammered on it (a bit) in the past…

                          It doesn’t float, it sank when I put it in a bucket of water 🙂 …
                          Sorry! It’s virtually nothing. I’ll measure it later when I’m sober 🥴 but it’s tight…

                          I noticed the two heat spots on the topside of where the centre pin is and thought it had work done on it. I don’t know whether they heat the sides to split the crank or assemble it, I’m guessing they split it. The spots look well defined so I thought it was someone who knew what they were doing. Hopefully! 😵‍💫 …

                          But seriously it looks good. About time I had some good luck ☠️

                          S Offline
                          S Offline
                          SpookDog
                          wrote on last edited by
                          #535

                          Managed to get the early casings for £45! Engine number 654! Sweet!…
                          Also managed to remove & measure the clutch actuator arm bearing and get a couple ordered. Gaskets are in the post. I’ve got just about everything I need to build…

                          Just need to strip a rear shock so I can measure the size of the various seals needed to rebuild one…

                          Happy daze! 🤩 …

                          S HOTSHOT IIIH 2 Replies Last reply
                          0
                          • S SpookDog

                            Managed to get the early casings for £45! Engine number 654! Sweet!…
                            Also managed to remove & measure the clutch actuator arm bearing and get a couple ordered. Gaskets are in the post. I’ve got just about everything I need to build…

                            Just need to strip a rear shock so I can measure the size of the various seals needed to rebuild one…

                            Happy daze! 🤩 …

                            S Offline
                            S Offline
                            SpookDog
                            wrote on last edited by
                            #536

                            Has anyone ever used one of those steam cleaner gizmos to try and clean engine/bike parts? I’m gonna try it out and see what occurs 😎 …

                            1 Reply Last reply
                            0
                            • CalumC Online
                              CalumC Online
                              Calum
                              wrote on last edited by
                              #537

                              I use aluminium oxide shot blasting cabinet that works a treat on small aluminium parts, if you have the patience...

                              Otherwise I send things like engine cases off to be vapor blasted.

                              Always Originate, Never Pirate!

                              S 1 Reply Last reply
                              0
                              • CalumC Calum

                                I use aluminium oxide shot blasting cabinet that works a treat on small aluminium parts, if you have the patience...

                                Otherwise I send things like engine cases off to be vapor blasted.

                                S Offline
                                S Offline
                                SpookDog
                                wrote on last edited by
                                #538

                                @Calum

                                You can buy small home blast cabinets? I’ve never thought to look. Do you need a separate compressor?…

                                1 Reply Last reply
                                0
                                • S SpookDog

                                  Managed to get the early casings for £45! Engine number 654! Sweet!…
                                  Also managed to remove & measure the clutch actuator arm bearing and get a couple ordered. Gaskets are in the post. I’ve got just about everything I need to build…

                                  Just need to strip a rear shock so I can measure the size of the various seals needed to rebuild one…

                                  Happy daze! 🤩 …

                                  HOTSHOT IIIH Offline
                                  HOTSHOT IIIH Offline
                                  HOTSHOT III
                                  wrote on last edited by
                                  #539

                                  @SpookDog I don't think the stock DTR shock is rebuildable. It's of the IFP type meaning it has an internal floating piston and the chamber behind it (right at the top of the shock body) is charged with air or nitrogen at 300+psi. Yamaha even show you exactly where to drill a 3mm hole to safely release the gas pressure before throwing it away. With those kinds of pressures it would be quite dangerous to try taking it apart IMO.

                                  It's like this so as the shock compresses and the piston rod occupies more volume inside the damper body, the IFP moves so the overall volume of the damper doesn't change and it just compresses the nitrogen chamber. This prevents the oil from becoming aerated which would result in inconsistent and/or total loss of damping.

                                  I just found this which shows how the IFP works, ignore the remote reservoir as the DT125R shock accomplishes all this in a single shock body as they figured that would be all 17-year-olds needed. The DT200R and most MX bikes have a remote or piggyback reservoir to increase oil volume and reduce overheating/fading during serious off-road riding. TBH I've never had an issue with a stock DTR shock so as long as there's no pitting on the shaft and no visible leaks I think you're good to go.

                                  https://www.youtube.com/watch?v=GBcRBOikb8c

                                  S 1 Reply Last reply
                                  0
                                  • HOTSHOT IIIH HOTSHOT III

                                    @SpookDog I don't think the stock DTR shock is rebuildable. It's of the IFP type meaning it has an internal floating piston and the chamber behind it (right at the top of the shock body) is charged with air or nitrogen at 300+psi. Yamaha even show you exactly where to drill a 3mm hole to safely release the gas pressure before throwing it away. With those kinds of pressures it would be quite dangerous to try taking it apart IMO.

                                    It's like this so as the shock compresses and the piston rod occupies more volume inside the damper body, the IFP moves so the overall volume of the damper doesn't change and it just compresses the nitrogen chamber. This prevents the oil from becoming aerated which would result in inconsistent and/or total loss of damping.

                                    I just found this which shows how the IFP works, ignore the remote reservoir as the DT125R shock accomplishes all this in a single shock body as they figured that would be all 17-year-olds needed. The DT200R and most MX bikes have a remote or piggyback reservoir to increase oil volume and reduce overheating/fading during serious off-road riding. TBH I've never had an issue with a stock DTR shock so as long as there's no pitting on the shaft and no visible leaks I think you're good to go.

                                    https://www.youtube.com/watch?v=GBcRBOikb8c

                                    S Offline
                                    S Offline
                                    SpookDog
                                    wrote on last edited by
                                    #540

                                    @HOTSHOT-III

                                    OK, that’s interesting! I knew that they weren’t ’serviceable’ but I didn’t realise they were charged with pressure in any kind of way. Probably why they have the ‘explode~explodey’ sticker on them! 🙂 I wonder how they charge them? They usually have a pfhiefer (spelling!😛) valve on them don’t they?…

                                    Cheers bud! 👍 …

                                    S 1 Reply Last reply
                                    1
                                    • S SpookDog

                                      @HOTSHOT-III

                                      OK, that’s interesting! I knew that they weren’t ’serviceable’ but I didn’t realise they were charged with pressure in any kind of way. Probably why they have the ‘explode~explodey’ sticker on them! 🙂 I wonder how they charge them? They usually have a pfhiefer (spelling!😛) valve on them don’t they?…

                                      Cheers bud! 👍 …

                                      S Offline
                                      S Offline
                                      SpookDog
                                      wrote on last edited by
                                      #541

                                      @SpookDog

                                      Haven’t blown a head gasket in forever!! So sweet! 🤩 I’ve almost forgotten the Pain (ITA$$!) of it all 🥲
                                      Still waiting on the #654 casings, bank holidays and wot~not 🙂 Till then I’m gonna build my new (2 me) front forks, ala proagressive springs and new tyre (balanced! No more riding a jackhammer!) new (genuine!) seals and top’n’bottom bushees. Whit new 2me speedo drive…

                                      Cost me an arm & a leg to squirrel all these bits away over the last wotever but it’s almost time to play!! 😵‍💫

                                      S 1 Reply Last reply
                                      1
                                      • S SpookDog

                                        @SpookDog

                                        Haven’t blown a head gasket in forever!! So sweet! 🤩 I’ve almost forgotten the Pain (ITA$$!) of it all 🥲
                                        Still waiting on the #654 casings, bank holidays and wot~not 🙂 Till then I’m gonna build my new (2 me) front forks, ala proagressive springs and new tyre (balanced! No more riding a jackhammer!) new (genuine!) seals and top’n’bottom bushees. Whit new 2me speedo drive…

                                        Cost me an arm & a leg to squirrel all these bits away over the last wotever but it’s almost time to play!! 😵‍💫

                                        S Offline
                                        S Offline
                                        SpookDog
                                        wrote on last edited by
                                        #542

                                        Can’t seem to get much work done at the moment, my ‘shed’ has no walls and the weather has been, meh! 😐 I’m out of the rain but the wind is fling more crap around than a bi~polar chimpanzee 🙂 …

                                        Also, I’ve just realised that I don’t have a decent head for the new engine! Does anyone have a good 3mb head that’s not being used? For a fair price? The last pristine one I had played pong with a piston ring locator pin 😬 …

                                        CalumC 1 Reply Last reply
                                        0
                                        • S SpookDog

                                          Can’t seem to get much work done at the moment, my ‘shed’ has no walls and the weather has been, meh! 😐 I’m out of the rain but the wind is fling more crap around than a bi~polar chimpanzee 🙂 …

                                          Also, I’ve just realised that I don’t have a decent head for the new engine! Does anyone have a good 3mb head that’s not being used? For a fair price? The last pristine one I had played pong with a piston ring locator pin 😬 …

                                          CalumC Online
                                          CalumC Online
                                          Calum
                                          wrote on last edited by
                                          #543

                                          @SpookDog Ouch, pretty sure 3MB heads are getting hard to come by these days...

                                          The only ones on fleBay are absolutely hanging 🤣

                                          Always Originate, Never Pirate!

                                          S 1 Reply Last reply
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