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DT125R FORUM

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  4. Hello Everyone! Planning to buy a DTR125

Hello Everyone! Planning to buy a DTR125

Scheduled Pinned Locked Moved Welcome New Owners!
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  • V Offline
    V Offline
    Vuteng
    wrote last edited by Vuteng
    #12

    @HOTSHOT-III Thank you very much for the information! I was just in the garage taking stuff apart and I took a look at the airfilter. The snorkel and everything is there but the foam on the air filter bracket is all fallen apart so I cleaned everything and blew out the airbox. I think this foam around the bracket is needed so it seals correct? Is there a way to reaply it or should I find a replacement one? Pic below to explain what I mean

    Also I noticed that the red oil light never turns on, from what I’ve read in the manuals it should glow red while idling in neutral, correct? The pump is working as the bike is smoking

    Seat was pink from what I found on the web and I really love the look with the pink seat so i will try to find that
    HMDNitkW.jpg

    HOTSHOT IIIH 1 Reply Last reply
    1
    • V Vuteng

      @HOTSHOT-III Thank you very much for the information! I was just in the garage taking stuff apart and I took a look at the airfilter. The snorkel and everything is there but the foam on the air filter bracket is all fallen apart so I cleaned everything and blew out the airbox. I think this foam around the bracket is needed so it seals correct? Is there a way to reaply it or should I find a replacement one? Pic below to explain what I mean

      Also I noticed that the red oil light never turns on, from what I’ve read in the manuals it should glow red while idling in neutral, correct? The pump is working as the bike is smoking

      Seat was pink from what I found on the web and I really love the look with the pink seat so i will try to find that
      HMDNitkW.jpg

      HOTSHOT IIIH Offline
      HOTSHOT IIIH Offline
      HOTSHOT III
      wrote last edited by HOTSHOT III
      #13

      @Vuteng No worries. You may be right about the pink seat, it's hard to keep track sometimes lol.

      The oil light should illuminate with the neutral light, it might just be a bulb.

      The air filter holder can be repaired with new foam. Get some 5mm air filter foam off eBay, clean the holder thoroughly and glue it on using Seal-All, a petrol and oil resistant glue. This is very important, if you run the bike without this the engine will suck dirt. It's also worth applying a dribble of foam filter oil right around it before sliding it back into the airbox with a fresh filter installed.

      https://www.ebay.co.uk/itm/365607220379?_skw=air+filter+foam+sheet+5mm&itmmeta=01KXEHQNAYY94YVPA0ZCWEDJWT&hash=item551fe3749b:g:bw0AAOSwvgZoJ56X&itmprp=enc%3AAQALAAABAGfYFPkwiKCW4ZNSs2u11xBJIt2fFtFYVz7npvy9%2FdRi6S7mEgUJZasERX59eCBKfXenkOvpapeRTvdBtNGUKUfiPY4fEK4pf%2B9FZEvfYbBUON3xdL3tnhWs58zVRQNZ7pceGI5BgLatkYMECyxPveg5pYDIaV21EePCl7Cqfvwvk3ioK5viwwH2Yz8sIBO23aXzUAkNNyDVUNCXMZc3LzjGdqxuqVXOAKppI%2BXdoEEGNlsakeXqsPKIdfDmz%2BI2T5pOUti5Eev1OACioI8km0yJRYiIVkU2JROBBc1g6SRJx%2FMTcKF3eHF9UzWNeU7y5%2BvMJ4u3qBNGNE1dBrHcjSI%3D|tkp%3ABk9SR-DV3tHrZw

      https://www.repairproducts.co.uk/product/seal-all-gas-oil-resistant-adhesive/

      V 1 Reply Last reply
      0
      • HOTSHOT IIIH HOTSHOT III

        @Vuteng No worries. You may be right about the pink seat, it's hard to keep track sometimes lol.

        The oil light should illuminate with the neutral light, it might just be a bulb.

        The air filter holder can be repaired with new foam. Get some 5mm air filter foam off eBay, clean the holder thoroughly and glue it on using Seal-All, a petrol and oil resistant glue. This is very important, if you run the bike without this the engine will suck dirt. It's also worth applying a dribble of foam filter oil right around it before sliding it back into the airbox with a fresh filter installed.

        https://www.ebay.co.uk/itm/365607220379?_skw=air+filter+foam+sheet+5mm&itmmeta=01KXEHQNAYY94YVPA0ZCWEDJWT&hash=item551fe3749b:g:bw0AAOSwvgZoJ56X&itmprp=enc%3AAQALAAABAGfYFPkwiKCW4ZNSs2u11xBJIt2fFtFYVz7npvy9%2FdRi6S7mEgUJZasERX59eCBKfXenkOvpapeRTvdBtNGUKUfiPY4fEK4pf%2B9FZEvfYbBUON3xdL3tnhWs58zVRQNZ7pceGI5BgLatkYMECyxPveg5pYDIaV21EePCl7Cqfvwvk3ioK5viwwH2Yz8sIBO23aXzUAkNNyDVUNCXMZc3LzjGdqxuqVXOAKppI%2BXdoEEGNlsakeXqsPKIdfDmz%2BI2T5pOUti5Eev1OACioI8km0yJRYiIVkU2JROBBc1g6SRJx%2FMTcKF3eHF9UzWNeU7y5%2BvMJ4u3qBNGNE1dBrHcjSI%3D|tkp%3ABk9SR-DV3tHrZw

        https://www.repairproducts.co.uk/product/seal-all-gas-oil-resistant-adhesive/

        V Offline
        V Offline
        Vuteng
        wrote last edited by
        #14

        @HOTSHOT-III Today I redid the foam, used some air filter foam I found and epoxy glued it + new air filter all oiled up. I tested the kickstand switch and it works but the oil light is not working. Will dismantle the tacho tomorrow. I looked at it today, i just remove the two pins underneath and it comes apart?

        HOTSHOT IIIH 1 Reply Last reply
        1
        • V Vuteng

          @HOTSHOT-III Today I redid the foam, used some air filter foam I found and epoxy glued it + new air filter all oiled up. I tested the kickstand switch and it works but the oil light is not working. Will dismantle the tacho tomorrow. I looked at it today, i just remove the two pins underneath and it comes apart?

          HOTSHOT IIIH Offline
          HOTSHOT IIIH Offline
          HOTSHOT III
          wrote last edited by
          #15

          @Vuteng Yes that's right, just remove the two "R" clips under the tacho. All the bulb holders are rubber and just pull out of the tacho.

          Great to hear you repaired the air filter holder!

          V 1 Reply Last reply
          0
          • HOTSHOT IIIH HOTSHOT III

            @Vuteng Yes that's right, just remove the two "R" clips under the tacho. All the bulb holders are rubber and just pull out of the tacho.

            Great to hear you repaired the air filter holder!

            V Offline
            V Offline
            Vuteng
            wrote last edited by
            #16

            @HOTSHOT-III Today i took the cluster apart, bulb is okay. So I followed the wires of the oil level sensor and it's unplugged. I suspect I have to take off the tank to reconnect it? I guess it's disconnected because it is not working.

            HOTSHOT IIIH 1 Reply Last reply
            0
            • V Vuteng

              @HOTSHOT-III Today i took the cluster apart, bulb is okay. So I followed the wires of the oil level sensor and it's unplugged. I suspect I have to take off the tank to reconnect it? I guess it's disconnected because it is not working.

              HOTSHOT IIIH Offline
              HOTSHOT IIIH Offline
              HOTSHOT III
              wrote last edited by
              #17

              @Vuteng The previous owner may have just forgotten to reconnect it for some reason, if that fixes it then great. Connector is underneath the fuel tank as you say.

              1 Reply Last reply
              0
              • V Offline
                V Offline
                Vuteng
                wrote last edited by
                #18

                I have registered the bike yesterday, already covered 100km. Love it! But what I've noticed dtarted to bother me, the clutch is veeery hard, so I would like to lube up the cable. What is the procedure to remove the cable from the bike and how to adjust it correctly?

                Also I noticed humming in 6th gear if I shift into 6th at 70kmh. If i go 80+ its okay. That is normal?
                Another thing I noticed, the bike falls on its face at 8k rpm, is it a CDI restriction or something else?

                Thanks for the help!

                1 Reply Last reply
                0
                • CalumC Offline
                  CalumC Offline
                  Calum
                  wrote last edited by
                  #19

                  Clutch could be stiff for many reasons. I run uprated clutch springs on my DTR so it is stiffer.

                  The clutch cable comes off very simply, just slacken the adjuster nuts on the clutch arm on the engine, then remove the cable from the engine. Route it through the frame and disconnect from the clutch perch.

                  You can then run some lubricant through the cable. I suspect though it'll be the clutch springs.

                  If the bike is falling flat on its face at 8k, then I'd initially say Powervalve.

                  Easy way to tell. Take the exhaust off, switch the ignition on and off (you'll hear the servo do the cleaning cycle). Once the powervalve turns flush with the exhaust port, switch the ignition off. Disconnect the powervalve servo from the main loom and ride the bike.

                  The bike should lose all bottom end, so basically gutless below 6k, but should rev to the limiter.

                  If this is the case, you've identified it's the powervalve. If this is not the case, then you know the problem lies elsewhere.

                  Always Originate, Never Pirate!

                  V 1 Reply Last reply
                  0
                  • CalumC Calum

                    Clutch could be stiff for many reasons. I run uprated clutch springs on my DTR so it is stiffer.

                    The clutch cable comes off very simply, just slacken the adjuster nuts on the clutch arm on the engine, then remove the cable from the engine. Route it through the frame and disconnect from the clutch perch.

                    You can then run some lubricant through the cable. I suspect though it'll be the clutch springs.

                    If the bike is falling flat on its face at 8k, then I'd initially say Powervalve.

                    Easy way to tell. Take the exhaust off, switch the ignition on and off (you'll hear the servo do the cleaning cycle). Once the powervalve turns flush with the exhaust port, switch the ignition off. Disconnect the powervalve servo from the main loom and ride the bike.

                    The bike should lose all bottom end, so basically gutless below 6k, but should rev to the limiter.

                    If this is the case, you've identified it's the powervalve. If this is not the case, then you know the problem lies elsewhere.

                    V Offline
                    V Offline
                    Vuteng
                    wrote last edited by Vuteng
                    #20

                    @Calum Thank you for the info, just ordered adjustable clutch and brake levers as they are very far away and I dont have small hands. Regarding the 8k problem, I tried it more today and I wouldnt say it completely stops, but It feel smore like a soft limiter, it just stops revving. I've read it can be a CDI limiter, how can I know for sure?

                    1 Reply Last reply
                    0
                    • CalumC Offline
                      CalumC Offline
                      Calum
                      wrote last edited by
                      #21

                      Did you try the powervalve trick I just told you about?

                      I know that the restrictions on the UK models differ from overseas models, so I am not familiar with what restrictions there are on other regions.

                      Either way, grabbing yourself a Zeeltronic ignition system will make all of these problems disappear and you'll gain a noticeable midrange boost.

                      Always Originate, Never Pirate!

                      V 1 Reply Last reply
                      0
                      • CalumC Calum

                        Did you try the powervalve trick I just told you about?

                        I know that the restrictions on the UK models differ from overseas models, so I am not familiar with what restrictions there are on other regions.

                        Either way, grabbing yourself a Zeeltronic ignition system will make all of these problems disappear and you'll gain a noticeable midrange boost.

                        V Offline
                        V Offline
                        Vuteng
                        wrote last edited by Vuteng
                        #22

                        @Calum Havent tried the powervalve trick you just told me about, will try in the weekend. So when I unplug the powervalve, to what rpm should the bike spin? Same 8k but without bottom end or higher?

                        How much is the Zeeltronic ignition system?

                        1 Reply Last reply
                        0
                        • CalumC Offline
                          CalumC Offline
                          Calum
                          wrote last edited by
                          #23

                          It should rev to the redline.

                          Depends on where you get your Zeel from, I paid £200 for mine, but that was like 12+ years ago.

                          Always Originate, Never Pirate!

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