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DT125R FORUM

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  4. So Close!...

So Close!...

Scheduled Pinned Locked Moved DTR
1.1k Posts 26 Posters 208.1k Views
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  • 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
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    • 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 Offline
      CalumC Offline
      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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      • CalumC Calum

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

        The only ones on fleBay are absolutely hanging 🤣

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        S Offline
        SpookDog
        wrote on last edited by SpookDog
        #544

        @Calum

        Bud, I know. Weird thing is the last pristine one I bought was off of fleabay! It was about £20 as well!! Before that it was the pristine 3mbp head & barrel with the entire 3wire servo & p/valve setup for £140. There are genuine sellers out there who aren’t all sheepled into the whole artificial Dtr pricing thing! It’s just time consuming to find them…
        I do have a 4fu I can use, just not sure about the squish, ect…

        I dinged my (genuine!) fork seal putting it in yesterday 🤬 luckily I found a geezer selling 2 genuine seals for £14 last nite. I also got 2 genuine seal washers for £10 (just not sure of the point or proper placement) and indulged in a fork seal fitting tool for £12, I just hope it works better than my chipped big flathead screwdriver! 😐 …

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        • S SpookDog

          @Calum

          Bud, I know. Weird thing is the last pristine one I bought was off of fleabay! It was about £20 as well!! Before that it was the pristine 3mbp head & barrel with the entire 3wire servo & p/valve setup for £140. There are genuine sellers out there who aren’t all sheepled into the whole artificial Dtr pricing thing! It’s just time consuming to find them…
          I do have a 4fu I can use, just not sure about the squish, ect…

          I dinged my (genuine!) fork seal putting it in yesterday 🤬 luckily I found a geezer selling 2 genuine seals for £14 last nite. I also got 2 genuine seal washers for £10 (just not sure of the point or proper placement) and indulged in a fork seal fitting tool for £12, I just hope it works better than my chipped big flathead screwdriver! 😐 …

          S Offline
          S Offline
          SpookDog
          wrote on last edited by
          #545

          PS
          I’m also looking for a left hand casing for parts. Doesn’t need to be usable or have VIN…

          S 1 Reply Last reply
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          • S SpookDog

            PS
            I’m also looking for a left hand casing for parts. Doesn’t need to be usable or have VIN…

            S Offline
            S Offline
            SpookDog
            wrote on last edited by
            #546

            Does everybody else balance the tyres on their bikes? All the bikes I’ve owned and ridden and I’ve never, ever had to balance the tyres! Never even though about it. Yet my dtr used to ride like a pneumatic drill and I didn’t realise it wasn’t a ‘characteristic’ 🥴 Bad enough when it’s just one doing it! Throw in the rear with the rim~lock and it’s no wonder I didn’t like going over 60mph!! Bucking Flipping Bronco**!!** ☠️ …

            CalumC 1 Reply Last reply
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            • S SpookDog

              Does everybody else balance the tyres on their bikes? All the bikes I’ve owned and ridden and I’ve never, ever had to balance the tyres! Never even though about it. Yet my dtr used to ride like a pneumatic drill and I didn’t realise it wasn’t a ‘characteristic’ 🥴 Bad enough when it’s just one doing it! Throw in the rear with the rim~lock and it’s no wonder I didn’t like going over 60mph!! Bucking Flipping Bronco**!!** ☠️ …

              CalumC Offline
              CalumC Offline
              Calum
              wrote on last edited by
              #547

              @SpookDog I explicitly asked not to as I didn't want it to affect the aesthetics 🤣 I rarely use my bikes and I certainly don't go at any speed

              Always Originate, Never Pirate!

              S 1 Reply Last reply
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              • CalumC Calum

                @SpookDog I explicitly asked not to as I didn't want it to affect the aesthetics 🤣 I rarely use my bikes and I certainly don't go at any speed

                S Offline
                S Offline
                SpookDog
                wrote on last edited by
                #548

                @Calum

                Did you upgrade your front master cylinder when you fitted the brembo 2pot calliper? If so what size? I’m gonna guess you used an aprilia one! 🙂 …

                Just trying to find out about front master cylinder sizes, mine has a 13mm which is interesting. The 13mm rear wasn’t ‘enough’ to work a 35mm front calliper when I fitted it on the rear…

                I’ve found a few different nissin ones from different bikes. Triumph do a few 14mm & 5/8in ones.
                There are loads that look identical to the dtr125 ones from different 125’s which can be had for £20-30 (minus the Dtr tax which would make it £60-80 😛) in mint condition!…

                CalumC 1 Reply Last reply
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                • S SpookDog

                  @Calum

                  Did you upgrade your front master cylinder when you fitted the brembo 2pot calliper? If so what size? I’m gonna guess you used an aprilia one! 🙂 …

                  Just trying to find out about front master cylinder sizes, mine has a 13mm which is interesting. The 13mm rear wasn’t ‘enough’ to work a 35mm front calliper when I fitted it on the rear…

                  I’ve found a few different nissin ones from different bikes. Triumph do a few 14mm & 5/8in ones.
                  There are loads that look identical to the dtr125 ones from different 125’s which can be had for £20-30 (minus the Dtr tax which would make it £60-80 😛) in mint condition!…

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #549

                  @SpookDog I run four pots on the front and twin pot on the rear. The front I'm using an Aprilia RSV Mille master cylinder and the rear is on the stock Nissin master cylinder.

                  Braking wise the thing stops on a dime!

                  Always Originate, Never Pirate!

                  S 1 Reply Last reply
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                  • CalumC Calum

                    @SpookDog I run four pots on the front and twin pot on the rear. The front I'm using an Aprilia RSV Mille master cylinder and the rear is on the stock Nissin master cylinder.

                    Braking wise the thing stops on a dime!

                    S Offline
                    S Offline
                    SpookDog
                    wrote on last edited by SpookDog
                    #550

                    @Calum

                    Cheers bud, I forgot you run ally wheels…

                    Do you have any knowledge about anybod that could manufacture a centre ‘hat’ rotor for the front hub? I would love to get a centre bit made so you could ‘bolt’ a floating disc to it. It shouldn’t be too difficult because there’s no offset to worry about. I’ve read that they can be made from aluminium, which shouldn’t be too hard. Just some CNC work and figuring what outer disc to fit/match it to. It’d be harder to make the calliper mounting plate to fit a 2 pot calliper too it, surely?…
                    Any thoughts?…

                    S 1 Reply Last reply
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                    • S SpookDog

                      @Calum

                      Cheers bud, I forgot you run ally wheels…

                      Do you have any knowledge about anybod that could manufacture a centre ‘hat’ rotor for the front hub? I would love to get a centre bit made so you could ‘bolt’ a floating disc to it. It shouldn’t be too difficult because there’s no offset to worry about. I’ve read that they can be made from aluminium, which shouldn’t be too hard. Just some CNC work and figuring what outer disc to fit/match it to. It’d be harder to make the calliper mounting plate to fit a 2 pot calliper too it, surely?…
                      Any thoughts?…

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                      SpookDog
                      wrote on last edited by
                      #551

                      SpookDog:

                      alt text

                      alt text

                      alt text

                      alt text

                      And the beat goes on ☠️ …
                      (as does the work!)

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                      • S SpookDog

                        SpookDog:

                        alt text

                        alt text

                        alt text

                        alt text

                        And the beat goes on ☠️ …
                        (as does the work!)

                        S Offline
                        S Offline
                        SpookDog
                        wrote on last edited by SpookDog
                        #552

                        How bad are rear wheel bearings to replace?…

                        I’ve done one before but it was nearly 35 years ago. I seem to remember lump hammer and giant screwdriver, ala chisel? I seem to remember having to depress the centre tube to allow access to the bearing from the opposite side? Any help/tips appreciated 🙂 …

                        S 1 Reply Last reply
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                        • S SpookDog

                          How bad are rear wheel bearings to replace?…

                          I’ve done one before but it was nearly 35 years ago. I seem to remember lump hammer and giant screwdriver, ala chisel? I seem to remember having to depress the centre tube to allow access to the bearing from the opposite side? Any help/tips appreciated 🙂 …

                          S Offline
                          S Offline
                          SpookDog
                          wrote on last edited by
                          #553

                          alt text

                          Leaky tube makes for another night of running~repair!…

                          Noticed that the rear wheel bearings are a bit ‘graunchy’ 😬 No play just the odd notch 🤬 Good job I bought some when I got the bike! 🙂 …

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                          • S SpookDog

                            alt text

                            Leaky tube makes for another night of running~repair!…

                            Noticed that the rear wheel bearings are a bit ‘graunchy’ 😬 No play just the odd notch 🤬 Good job I bought some when I got the bike! 🙂 …

                            S Offline
                            S Offline
                            SpookDog
                            wrote on last edited by
                            #554

                            @SpookDog

                            alt text

                            1 Reply Last reply
                            1
                            • CalumC Offline
                              CalumC Offline
                              Calum
                              wrote on last edited by
                              #555

                              Pipe looks good on it.

                              You need to get some photos of it in the light etc, preferably on the trails!

                              Always Originate, Never Pirate!

                              S 1 Reply Last reply
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                              • CalumC Calum

                                Pipe looks good on it.

                                You need to get some photos of it in the light etc, preferably on the trails!

                                S Offline
                                S Offline
                                SpookDog
                                wrote on last edited by
                                #556

                                I’m not a daytime/morning person but I will oblige when the good weather finally breaks! 😎 …

                                Has anyone ever had a water pump seal fail? I’ve had some contamination problems with my gear oil, it’s grey and emulsified. Horrible state! The only things I can think of are the pump seal letting a small amount of liquid into the gearbox, or possibly condisation from cold damp air during the winter. Which is a stretch of the imagination 🙂 …

                                S 1 Reply Last reply
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                                • CalumC Offline
                                  CalumC Offline
                                  Calum
                                  wrote on last edited by
                                  #557

                                  Yeah, waterpump seal failed on my brothers DTR and he ended up with coolant in the gearbox oil.

                                  Should be a relatively simple fix, just remove the clutch cover, dismantle the waterpump impeller and press out the seal and push in the new one.

                                  Always Originate, Never Pirate!

                                  1 Reply Last reply
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                                  • S SpookDog

                                    I’m not a daytime/morning person but I will oblige when the good weather finally breaks! 😎 …

                                    Has anyone ever had a water pump seal fail? I’ve had some contamination problems with my gear oil, it’s grey and emulsified. Horrible state! The only things I can think of are the pump seal letting a small amount of liquid into the gearbox, or possibly condisation from cold damp air during the winter. Which is a stretch of the imagination 🙂 …

                                    S Offline
                                    S Offline
                                    SpookDog
                                    wrote on last edited by
                                    #558

                                    Finally got round to doing the forks! Got new genuine oil seals from fleabay for less than a tenner each, but try and find the top dust seals!!…

                                    Made sure the bolts are separated from the aluminium by using CT1 sealant to ‘encapsulate’ the fuxors! Doesn’t hurt leaky copper washers either;) …

                                    alt text

                                    Used 1 & 1/2 extension bars to use the 27mm hex/Allen adapter to hold the inners in place made torquing it up real easy…

                                    alt text

                                    Finally fitted these puppies in the forks!…

                                    alt text

                                    Will fit the forks to the bike soon as possible, weather permitting 😐 …

                                    markus.wM 1 Reply Last reply
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                                    • CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #559

                                      Yeah nice, I'd be interested in hearing about your experience with those springs. USD's made a huge difference to my bike, but it was significantly more work that just fitting springs.

                                      Always Originate, Never Pirate!

                                      S 1 Reply Last reply
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                                      • CalumC Calum

                                        Yeah nice, I'd be interested in hearing about your experience with those springs. USD's made a huge difference to my bike, but it was significantly more work that just fitting springs.

                                        S Offline
                                        S Offline
                                        SpookDog
                                        wrote on last edited by SpookDog
                                        #560

                                        @Calum

                                        I thought about it, even bought some (YZ) that had been fitted to a Dtr by a previous, but the reality of how massive tall they are just put me off. Getting the right donors is definitely the ‘ting’ 🙂 The standard forks are way too soppy…

                                        S 1 Reply Last reply
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                                        • S SpookDog

                                          @Calum

                                          I thought about it, even bought some (YZ) that had been fitted to a Dtr by a previous, but the reality of how massive tall they are just put me off. Getting the right donors is definitely the ‘ting’ 🙂 The standard forks are way too soppy…

                                          S Offline
                                          S Offline
                                          SpookDog
                                          wrote on last edited by
                                          #561

                                          Has anyone else noticed that when you tighten up the front wheel spindle it wobbles up-down/side-side a little? I’ve had this with different forks and spindle combinations! Is this normal?!…

                                          I’ve noticed that the gap on the speedo side is nearly 5mm more than the disc side, normal or not?…

                                          Ta for any insight 🙂 …

                                          S HOTSHOT IIIH 2 Replies Last reply
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