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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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  • CalumC Calum

    @Stevie-Wonder Obviously haven't had a two stroke seize on you...
    https://youtu.be/g5_A5oi7wC0?si=Nk_odNb7xHzDdZhc&t=36

    Nasty when this happens and you're on a bend and is very common on two strokes unfortunately.

    Stevie WonderS Offline
    Stevie WonderS Offline
    Stevie Wonder
    wrote on last edited by
    #1049

    @Calum luckily not, I’ve seen videos and learned to ride with my fingers over the clutch just in case, but I’ve never thought about it suddenly happening mid corner.

    Oddly enough I see a young guy on an rs extrema, I passed him some compliments then next thing you know hes blapping the throttle going around a tight corner. I could help but think of your comment

    S 1 Reply Last reply
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    • Stevie WonderS Stevie Wonder

      @Calum luckily not, I’ve seen videos and learned to ride with my fingers over the clutch just in case, but I’ve never thought about it suddenly happening mid corner.

      Oddly enough I see a young guy on an rs extrema, I passed him some compliments then next thing you know hes blapping the throttle going around a tight corner. I could help but think of your comment

      S Offline
      S Offline
      SpookDog
      wrote on last edited by
      #1050

      I don’t know if it’s a bad habit or not, but since I had the Dtr’s teething troubles I always ride with my Churchill’s over the clutch, sometimes the brake as well. I have my back brake set so that my foot is comfortably over the pedal…
      I’ve had 3 or 4 heat seizures in my time. I’ve always managed to whip in the clutch In time. To the point where I could kick it over straight away afterwards…

      Used to hover the clutch in a car as well…

      ————————————-

      Just fitted the new clutch perch and lever, as well as a new Slinky cable. The action feels like a hot knife and butter now! I never realised how wrong the one it came with was, or how it used to bind…

      If I could afford £50 for a genuine clutch cable I would. Or if I had a genuine outer I’d fit a stainless cable and solderless nipple.
      The one cable that I will only use genuine is the throttle. My bike came with an aftermarket one and it’s shite. Not so bad if you’re pre mixed but absolutely necessary with auto lube…

      S 1 Reply Last reply
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      • S SpookDog

        I don’t know if it’s a bad habit or not, but since I had the Dtr’s teething troubles I always ride with my Churchill’s over the clutch, sometimes the brake as well. I have my back brake set so that my foot is comfortably over the pedal…
        I’ve had 3 or 4 heat seizures in my time. I’ve always managed to whip in the clutch In time. To the point where I could kick it over straight away afterwards…

        Used to hover the clutch in a car as well…

        ————————————-

        Just fitted the new clutch perch and lever, as well as a new Slinky cable. The action feels like a hot knife and butter now! I never realised how wrong the one it came with was, or how it used to bind…

        If I could afford £50 for a genuine clutch cable I would. Or if I had a genuine outer I’d fit a stainless cable and solderless nipple.
        The one cable that I will only use genuine is the throttle. My bike came with an aftermarket one and it’s shite. Not so bad if you’re pre mixed but absolutely necessary with auto lube…

        S Offline
        S Offline
        SpookDog
        wrote on last edited by SpookDog
        #1051

        Does anyone think that the position of the front calliper can affect its performance?
        I have exactly the same calliper on the front and rear (30mm piston) but the front brake only has 1/3 of the effectiveness of the rear, as far as I know this is totally back to front! The front is normally 70% of the total performance, no?…
        I can’t get my head around how woeful the front brake performance is. It makes no sense. They both have Brembo carbon ceramic pads…

        I really want to find someone who does waterjet cutting, or something similar, to make a rotor that will fit the Dtr’s front hub and take a floating disc from a donor. Whatever size/make that is the most inexpensive/common. Then design an ally mount to couple it with a Brembo 2 piston calliper, or such, that will fit the spoke to disc clearance…
        Somebody needs to do a decent affordable upgrade!…

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        • CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #1052

          Brakes on my DTR were horrendous.

          Don't have that problem any more, bike stops on a DIME!

          Always Originate, Never Pirate!

          S 1 Reply Last reply
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          • CalumC Calum

            Brakes on my DTR were horrendous.

            Don't have that problem any more, bike stops on a DIME!

            S Offline
            S Offline
            SpookDog
            wrote on last edited by
            #1053

            @Calum

            It’s only my front brake, the rear is the bogs dollox!…

            1 Reply Last reply
            0
            • CalumC Offline
              CalumC Offline
              Calum
              wrote on last edited by
              #1054

              @SpookDog It's definitely bled properly?

              Always Originate, Never Pirate!

              S 1 Reply Last reply
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              • CalumC Calum

                @SpookDog It's definitely bled properly?

                S Offline
                S Offline
                SpookDog
                wrote on last edited by
                #1055

                @Calum

                I don’t think that it is. There’s no play on the lever, let alone sponginess, but I don’t think it’s getting the full pressure of the system at the pads. I can’t see any other reason…

                47,125 miles today! That’s 34K since I’ve been riding 🙂…

                CalumC 1 Reply Last reply
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                • S SpookDog

                  @Calum

                  I don’t think that it is. There’s no play on the lever, let alone sponginess, but I don’t think it’s getting the full pressure of the system at the pads. I can’t see any other reason…

                  47,125 miles today! That’s 34K since I’ve been riding 🙂…

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #1056

                  @SpookDog Mate, that's a mental amount of riding!

                  Always Originate, Never Pirate!

                  1 Reply Last reply
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                  • HOTSHOT IIIH HOTSHOT III

                    @SpookDog In practice the linkage bearing sleeves often don't wear so if you vernier your originals up and they're still close to 20mm OD you can just get the linkage parts separately. Relay arm bearings:

                    https://shop.marksman-ind.com/93315-32052-00-equivalent-yamaha-bearing-29446-p.asp

                    Linkage bushes:
                    https://simplybearings.co.uk/shop/p142950/MB2020X-Bronze-Backed-Steel-Bush-20x23x20mm/product_info.html

                    Seals:
                    https://simplybearings.co.uk/shop/p26044/20x27x5mm-Nitrile-Rubber-Rotary-Shaft-Oil-Seal-with-Garter-Spring-R23-/-TC/product_info.html

                    Double check all of these dimensions before ordering as it's a while since I did a DTR linkage job but I'm pretty sure these are correct. Just rip the piss out of me if they're not.

                    S Offline
                    S Offline
                    SpookDog
                    wrote on last edited by SpookDog
                    #1057

                    Double check all of these dimensions before ordering as it's a while since I did a DTR linkage job but I'm pretty sure these are correct. Just rip the piss out of me if they're not.

                    Is there anyone who knows the sizes of the needle-roller bearings and the phosphor bronze bushes definitely? The only way I can find out is to strip down the linkage first. I don’t want to take the bike off of the road though. Also I’ll probably destroy the bearings and bushes during removal! From what I remember the bearings were loose rollers that I had to stick/pack into place with grease, only the outer ‘cages’ were drift~fitted inside the linkage to frame union. They were very thin gauge metal and easily damaged…

                    Ta!…

                    PS. Is the 20mm inner or outer?…

                    Edit: The inner is 20mm on both bearings and bushes. Are the bearings 23mm outer like the bushes?…

                    S 1 Reply Last reply
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                    • S SpookDog

                      Double check all of these dimensions before ordering as it's a while since I did a DTR linkage job but I'm pretty sure these are correct. Just rip the piss out of me if they're not.

                      Is there anyone who knows the sizes of the needle-roller bearings and the phosphor bronze bushes definitely? The only way I can find out is to strip down the linkage first. I don’t want to take the bike off of the road though. Also I’ll probably destroy the bearings and bushes during removal! From what I remember the bearings were loose rollers that I had to stick/pack into place with grease, only the outer ‘cages’ were drift~fitted inside the linkage to frame union. They were very thin gauge metal and easily damaged…

                      Ta!…

                      PS. Is the 20mm inner or outer?…

                      Edit: The inner is 20mm on both bearings and bushes. Are the bearings 23mm outer like the bushes?…

                      S Offline
                      S Offline
                      SpookDog
                      wrote on last edited by
                      #1058

                      Well, I couldn’t confirm the sizes, so I’m hoping that they’re right so I don’t have to Rip t Piss out of Hotshot!! 😜
                      I’m just praying that the sleeves are in good enough order (especially the roller bearing one) to match up nicely 🤞 …

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