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DT125R FORUM

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DTR Build Up

Scheduled Pinned Locked Moved DTR
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  • Biker_123B Biker_123

    Really liking the look of this DT! Looks the business in white/red. Good job mate 🙂

    ConnorDTRC Offline
    ConnorDTRC Offline
    ConnorDTR
    wrote on last edited by
    #38

    @Biker_123 Cheers fella!

    1 Reply Last reply
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    • ConnorDTRC ConnorDTR

      Well the seat is now recovered, was a bit harder than expected. Got it done rather well though.

      Got my parcel from wemoto today aswell, new flywheel cover. Was cheaper and easier to buy new than find secondhand. Grommets for the panels, rear brake switch and spring and a sprocket with 2 less teeth to help the rear tyre clear the swingarm for mot.

      Couldn't resist the time to take a video
      https://drive.google.com/file/d/0B8zzxn-bUqzQbUlGMWxrZy1jeGs/view

      Neighbours were not too pleased, but stuff em. MOT time at the end of the month when my speedo and indicators are on!

      Also my brakes seem to be rather feeble, hardly anything from the rear brake and front brake takes ages to slow me down. May have to be rebled however they seem to be pretty stiff as is, any pointers? Pads are brand new, however discs have a fair bit of surface corrosion from standing. Think they need some time to bed in

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #39

      @ConnorDTR you should always bed in new pads on old discs. And vice versa.

      They will require bedding in.

      I found the brakes on my dt useless. Engine braking was thw only way to slow that down.

      The thing I am most pleased with my bike is not the power, but the brakes.

      Always Originate, Never Pirate!

      ConnorDTRC 1 Reply Last reply
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      • CalumC Calum

        @ConnorDTR you should always bed in new pads on old discs. And vice versa.

        They will require bedding in.

        I found the brakes on my dt useless. Engine braking was thw only way to slow that down.

        The thing I am most pleased with my bike is not the power, but the brakes.

        ConnorDTRC Offline
        ConnorDTRC Offline
        ConnorDTR
        wrote on last edited by
        #40

        @Calum Not sure how i'd get the brakes to bed in before the MOT, don't want it failing because of shoddy brakes. In the video near the end you can see how long it took for me to stop, that was giving it everything it's got. Must've only been doing 20.

        I agree that the brakes are shoddy, not a match compared to the twin pistons my cbr125 had! And way worse than my car.

        Think i've found the first upgrade!

        CalumC 1 Reply Last reply
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        • ConnorDTRC ConnorDTR

          @Calum Not sure how i'd get the brakes to bed in before the MOT, don't want it failing because of shoddy brakes. In the video near the end you can see how long it took for me to stop, that was giving it everything it's got. Must've only been doing 20.

          I agree that the brakes are shoddy, not a match compared to the twin pistons my cbr125 had! And way worse than my car.

          Think i've found the first upgrade!

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #41

          @ConnorDTR decent set of pads and brake fluid. I have had it bad before. How bad I can't say.

          Always Originate, Never Pirate!

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          • DartyD Offline
            DartyD Offline
            Darty
            wrote on last edited by
            #42

            Standard DTR brakes are a bit rubbish. You realise how old they are more and more. Defiantly get some Braided brake lines front and back, adds the feel you need over the standard hoses. Did you Vacuum bleed the brakes by the way?

            Braking from 80mph on a DT sometimes feels like I need to stick my leg out as an airbrake, GP style... FUN. haha Not confidence inspiring.

            My brakes were okay at best, EBC pads and discs were quite good.

            Sounds nice and perky man! good to see it running well

            Keep it real

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            • ConnorDTRC Offline
              ConnorDTRC Offline
              ConnorDTR
              wrote on last edited by
              #43

              Guess who's bike is going to see the inside of an mot garage for the first time in 6 years!

              CalumC 1 Reply Last reply
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              • ConnorDTRC ConnorDTR

                Guess who's bike is going to see the inside of an mot garage for the first time in 6 years!

                CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #44

                @ConnorDTR Won't be mine MOT is for squares...jokes. Good luck when is it due.

                Always Originate, Never Pirate!

                ConnorDTRC 1 Reply Last reply
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                • CalumC Calum

                  @ConnorDTR Won't be mine MOT is for squares...jokes. Good luck when is it due.

                  ConnorDTRC Offline
                  ConnorDTRC Offline
                  ConnorDTR
                  wrote on last edited by
                  #45

                  @Calum Well the MOT was due 8 September 2011 lol. But it's going in at 9 tomorrow morning

                  1 Reply Last reply
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                  • ConnorDTRC Offline
                    ConnorDTRC Offline
                    ConnorDTR
                    wrote on last edited by
                    #46

                    Guess who's suffered from using a cheap headgasket.... This mug

                    CalumC 1 Reply Last reply
                    0
                    • LJK_hunterL Offline
                      LJK_hunterL Offline
                      LJK_hunter
                      wrote on last edited by LJK_hunter
                      #47

                      How long did it last? because i've recently replaced the head gasket on mine with a cheap one.

                      ConnorDTRC 1 Reply Last reply
                      0
                      • ConnorDTRC ConnorDTR

                        Guess who's suffered from using a cheap headgasket.... This mug

                        CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #48

                        @ConnorDTR said:

                        Guess who's suffered from using a cheap headgasket.... This mug

                        You really should have known better!

                        Athena or Genuine, ever!

                        Always Originate, Never Pirate!

                        ConnorDTRC 1 Reply Last reply
                        0
                        • LJK_hunterL LJK_hunter

                          How long did it last? because i've recently replaced the head gasket on mine with a cheap one.

                          ConnorDTRC Offline
                          ConnorDTRC Offline
                          ConnorDTR
                          wrote on last edited by
                          #49

                          @LJK_hunter 60 miles...

                          1 Reply Last reply
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                          • CalumC Calum

                            @ConnorDTR said:

                            Guess who's suffered from using a cheap headgasket.... This mug

                            You really should have known better!

                            Athena or Genuine, ever!

                            ConnorDTRC Offline
                            ConnorDTRC Offline
                            ConnorDTR
                            wrote on last edited by
                            #50

                            @Calum I really should have, bikes going to be off the road now for a week or so. Ruined my fresh new top end. Also think the head could be warped so going to take it all into college and test it. Well i have a new athena top end gasket set on its way and have a spare cylinder that just needs a quick hone which should last until the end of the month where i can afford a proper rebore

                            CalumC 1 Reply Last reply
                            0
                            • ConnorDTRC Offline
                              ConnorDTRC Offline
                              ConnorDTR
                              wrote on last edited by
                              #51

                              Also i'm going to invest in a digital coolant temp gauge seeing as the koso clocks don't have a temp gauge

                              1 Reply Last reply
                              0
                              • ConnorDTRC ConnorDTR

                                @Calum I really should have, bikes going to be off the road now for a week or so. Ruined my fresh new top end. Also think the head could be warped so going to take it all into college and test it. Well i have a new athena top end gasket set on its way and have a spare cylinder that just needs a quick hone which should last until the end of the month where i can afford a proper rebore

                                CalumC Offline
                                CalumC Offline
                                Calum
                                wrote on last edited by
                                #52

                                @ConnorDTR said:

                                @Calum I really should have, bikes going to be off the road now for a week or so. Ruined my fresh new top end. Also think the head could be warped so going to take it all into college and test it. Well i have a new athena top end gasket set on its way and have a spare cylinder that just needs a quick hone which should last until the end of the month where i can afford a proper rebore

                                I have written a guide to skim the head on here mate. You won't need a professional skim unless you reallh have cooked it!

                                Be alright mate they're fairly resilient. But you now you know.

                                Always Originate, Never Pirate!

                                ConnorDTRC 1 Reply Last reply
                                1
                                • CalumC Calum

                                  @ConnorDTR said:

                                  @Calum I really should have, bikes going to be off the road now for a week or so. Ruined my fresh new top end. Also think the head could be warped so going to take it all into college and test it. Well i have a new athena top end gasket set on its way and have a spare cylinder that just needs a quick hone which should last until the end of the month where i can afford a proper rebore

                                  I have written a guide to skim the head on here mate. You won't need a professional skim unless you reallh have cooked it!

                                  Be alright mate they're fairly resilient. But you now you know.

                                  ConnorDTRC Offline
                                  ConnorDTRC Offline
                                  ConnorDTR
                                  wrote on last edited by
                                  #53

                                  @Calum That's where i found the other info i posted up lol, just need to wait for my dad to go out so i can steal the bathroom mirror! Hoping it'll be good for a bit, was so fun riding the bike! Also offroad is hard, i'll post a proper update in an hour or so

                                  CalumC 1 Reply Last reply
                                  0
                                  • ConnorDTRC Offline
                                    ConnorDTRC Offline
                                    ConnorDTR
                                    wrote on last edited by ConnorDTR
                                    #54

                                    Well here's how my first day riding my bike went,

                                    http://i.imgur.com/WSsEKxc.jpg?1
                                    Just a little pre mot prep, checking bearings are tight all lights are working etc

                                    http://i.imgur.com/EPdAqV3.jpg?1
                                    Admiring my creation

                                    http://i.imgur.com/e9wIrrS.jpg?2
                                    Passed with no advisories

                                    http://i.imgur.com/UomhNDp.jpg?1
                                    Went for a good ride with my friend Darryl, we checked out a few trails and i dropped my bike for the first time

                                    http://i.imgur.com/2Rvbv2c.jpg?1
                                    Went out later in the night to meet my friend from college and his mate as they fancy a DT too! However as soon as i got there the bike cut out, would kick over fine but wouldn't kick in. Tried bump starting it but still no avail, until the loudest bang every could be heard from my bike. This was when i suspected something was seriously wrong, as when you kicked it over there was a new, very questionable noise so i suspected my bottom end has gone.

                                    http://i.imgur.com/NoMC7gZ.jpg?1
                                    http://i.imgur.com/Zy06OBM.jpg?1
                                    http://i.imgur.com/Qs0ch8l.jpg?1
                                    When i got home (Thanks to my friend Dan for getting me in his van) I decided to get right down to it and strip the cylinder off in the freezing cold in my shed, Can see what i believe is called a four point seizure, to do with the piston heating up and expanding quicker than the cylinder so the piston gets stuck in the cylinder. When i drained the coolant i saw there was bugger all in there, 100ml at best and it wasn't the same colour as when it went in.... plus the coolant expansion tank has shot out its cap.

                                    So i've ordered an athena top end gasket set and going to reuse the old cylinder with a quick rehone and the old piston as there are no marks at all, skim the head using Callums glass and wet and dry method, refill the coolant and hope that she runs again. Going to keep an eye for any white smoke and the expansion tank this time

                                    1 Reply Last reply
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                                    • ConnorDTRC ConnorDTR

                                      @Calum That's where i found the other info i posted up lol, just need to wait for my dad to go out so i can steal the bathroom mirror! Hoping it'll be good for a bit, was so fun riding the bike! Also offroad is hard, i'll post a proper update in an hour or so

                                      CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #55

                                      @ConnorDTR that's the one mate. Flat surface as possible. Nice ciruclar motion.

                                      Believe me, if you have read my.build thread then you know it can sort out a battered 21 year old engine that had clearly been run with the head gasket gone for a long time lol.

                                      Always Originate, Never Pirate!

                                      ConnorDTRC 1 Reply Last reply
                                      0
                                      • CalumC Calum

                                        @ConnorDTR that's the one mate. Flat surface as possible. Nice ciruclar motion.

                                        Believe me, if you have read my.build thread then you know it can sort out a battered 21 year old engine that had clearly been run with the head gasket gone for a long time lol.

                                        ConnorDTRC Offline
                                        ConnorDTRC Offline
                                        ConnorDTR
                                        wrote on last edited by
                                        #56

                                        @Calum What grit did you use? Pretty sure i've got some fine emery cloth here aswell, or is that still too rough? I've got 2000 grit but it's those crap little rolls that are about 10 cm wide from halfrauds

                                        CalumC 1 Reply Last reply
                                        0
                                        • CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #57

                                          Oh dear! Yes I see what's happened here. That barrel could get away without a hone to ne fair. But you're the right thing.

                                          I was running my dt with too much fuel and it bore washed and scored similar. But wasn't the end of the world. Still runs.

                                          Always Originate, Never Pirate!

                                          1 Reply Last reply
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