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DT125R FORUM

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  4. Another New Guy

Another New Guy

Scheduled Pinned Locked Moved Welcome New Owners!
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  • Louis-DT-WRL Offline
    Louis-DT-WRL Offline
    Louis-DT-WR
    wrote on last edited by
    #10

    Yes it's my dt200wr and dt125r/wr200 hybrid on Instagram.

    I believe the reed switch worked from limiti the speed as it fits inside the speedometer

    1 Reply Last reply
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    • D Offline
      D Offline
      d3cme
      wrote on last edited by
      #11

      So i've checked and think I have the 'good' CDI according to this site. I've checked and I've got a 3RM-30. (Clicky - It needs a good clean back there 😐

      http://dtpedia.de/mediawiki/index.php/CDI_Steuerteile

      "The 3RM-30 is a very special, and in Germany very rare model. According to my research, it was used in the model years 1999-2002 in the French national version. It is almost identical to the 3RM-20, but has a slightly modified YPVS control."

      I'm yet to go out since moving the reed switch, but if that hasn't helped I'll see if theres anything I can do to test the CDI.

      2002 DT125R - Black

      NINJAN 1 Reply Last reply
      0
      • D d3cme

        So i've checked and think I have the 'good' CDI according to this site. I've checked and I've got a 3RM-30. (Clicky - It needs a good clean back there 😐

        http://dtpedia.de/mediawiki/index.php/CDI_Steuerteile

        "The 3RM-30 is a very special, and in Germany very rare model. According to my research, it was used in the model years 1999-2002 in the French national version. It is almost identical to the 3RM-20, but has a slightly modified YPVS control."

        I'm yet to go out since moving the reed switch, but if that hasn't helped I'll see if theres anything I can do to test the CDI.

        NINJAN Offline
        NINJAN Offline
        NINJA
        wrote on last edited by
        #12

        @d3cme Going for a ride will be the true test to see if you've unshackled that CDI for-sure!!! 😉

        SEDUCED BY THE DARK SIDE!!!

        1 Reply Last reply
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        • D Offline
          D Offline
          d3cme
          wrote on last edited by
          #13

          Wasn't the Reed Switch 😞

          Guessing I'll need to look into exhaust/zeeltronic etc. Might just see if i can stick it out I didn't want to mess around with it really.

          2002 DT125R - Black

          NINJAN 1 Reply Last reply
          0
          • D d3cme

            Wasn't the Reed Switch 😞

            Guessing I'll need to look into exhaust/zeeltronic etc. Might just see if i can stick it out I didn't want to mess around with it really.

            NINJAN Offline
            NINJAN Offline
            NINJA
            wrote on last edited by
            #14

            @d3cme So no improvements at all???

            SEDUCED BY THE DARK SIDE!!!

            D 1 Reply Last reply
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            • NINJAN NINJA

              @d3cme So no improvements at all???

              D Offline
              D Offline
              d3cme
              wrote on last edited by
              #15

              @NINJA no still just the same, feels like it hits the redline at 7500-8k rpm, really odd.

              Do you know if the CDI is smart enough to limit revs when the engine is ‘cold’? Only thing I can see that might be wrong as such is the temp sensor didn’t move much beyond cold. I tested the gauge by earthing the connector last week but haven’t had the sender out the head yet. Engine was up to temp.

              2002 DT125R - Black

              D NINJAN 2 Replies Last reply
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              • D d3cme

                @NINJA no still just the same, feels like it hits the redline at 7500-8k rpm, really odd.

                Do you know if the CDI is smart enough to limit revs when the engine is ‘cold’? Only thing I can see that might be wrong as such is the temp sensor didn’t move much beyond cold. I tested the gauge by earthing the connector last week but haven’t had the sender out the head yet. Engine was up to temp.

                D Offline
                D Offline
                d3cme
                wrote on last edited by d3cme
                #16

                alt text

                That was after about a 30 min ride (also annoying condensation in there too).

                2002 DT125R - Black

                1 Reply Last reply
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                • D d3cme

                  @NINJA no still just the same, feels like it hits the redline at 7500-8k rpm, really odd.

                  Do you know if the CDI is smart enough to limit revs when the engine is ‘cold’? Only thing I can see that might be wrong as such is the temp sensor didn’t move much beyond cold. I tested the gauge by earthing the connector last week but haven’t had the sender out the head yet. Engine was up to temp.

                  NINJAN Offline
                  NINJAN Offline
                  NINJA
                  wrote on last edited by NINJA
                  #17

                  @d3cme Your water temp sensor may be knackered? Which is a possible cause to your problems, but it sounds like you have another problem causing the restriction. Is the power valve set up correctly? Has the YPVS (?) air bottle been removed? It's number 35 in this pic, it comes off the intake between the carb and air filter box;

                  https://www.fowlersparts.co.uk/parts/4171936/dt125r-3rmm-2002-050-b/intake

                  SEDUCED BY THE DARK SIDE!!!

                  D 1 Reply Last reply
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                  • T Offline
                    T Offline
                    theportingmaster
                    wrote on last edited by
                    #18

                    @d3cme I have a 2002 dtr imported from the isle of man, has the 3rm-20 cdi. Moved the reed switch about 6 inches just cut the insulation so could pull the 2 wires really out of the way. Mine didn't rev past 7-8000 max till moved the reed switch now revs past 11000 and goes off the clock. If you rev it stood still in neutral does it got to 11000.

                    D 1 Reply Last reply
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                    • T theportingmaster

                      @d3cme I have a 2002 dtr imported from the isle of man, has the 3rm-20 cdi. Moved the reed switch about 6 inches just cut the insulation so could pull the 2 wires really out of the way. Mine didn't rev past 7-8000 max till moved the reed switch now revs past 11000 and goes off the clock. If you rev it stood still in neutral does it got to 11000.

                      D Offline
                      D Offline
                      d3cme
                      wrote on last edited by
                      #19

                      @theportingmaster said in Another New Guy:

                      @d3cme I have a 2002 dtr imported from the isle of man, has the 3rm-20 cdi. Moved the reed switch about 6 inches just cut the insulation so could pull the 2 wires really out of the way. Mine didn't rev past 7-8000 max till moved the reed switch now revs past 11000 and goes off the clock. If you rev it stood still in neutral does it got to 11000.

                      This sounds promising then, I’d literally moved it to where the cables were glued into the insulation. I’ve just moved it to under the headlight so will give it a try and report back...

                      2002 DT125R - Black

                      1 Reply Last reply
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                      • NINJAN NINJA

                        @d3cme Your water temp sensor may be knackered? Which is a possible cause to your problems, but it sounds like you have another problem causing the restriction. Is the power valve set up correctly? Has the YPVS (?) air bottle been removed? It's number 35 in this pic, it comes off the intake between the carb and air filter box;

                        https://www.fowlersparts.co.uk/parts/4171936/dt125r-3rmm-2002-050-b/intake

                        D Offline
                        D Offline
                        d3cme
                        wrote on last edited by
                        #20

                        @NINJA said in Another New Guy:

                        @d3cme Your water temp sensor may be knackered? Which is a possible cause to your problems, but it sounds like you have another problem causing the restriction. Is the power valve set up correctly? Has the YPVS (?) air bottle been removed? It's number 35 in this pic, it comes off the intake between the carb and air filter box;

                        https://www.fowlersparts.co.uk/parts/4171936/dt125r-3rmm-2002-050-b/intake

                        I can’t see anything missing but not sure I can see that part exactly.. will need to strip it back a bit more to see for sure I think.

                        While I was looking I’ve got 2 ports on the carb without anything on, I got some pics and will look on that site to see if I can see the same view for the carb and work out what they are.

                        2002 DT125R - Black

                        NINJAN 1 Reply Last reply
                        0
                        • D Offline
                          D Offline
                          d3cme
                          wrote on last edited by d3cme
                          #21

                          Sorry half effort answering both of you there.

                          It will rev freely up to the indicated 10,500rpm redline in neutral or with the clutch in.

                          Power valve seems to be ok (unless there’s nothing in there if that’s possible?) but was the first thing I checked and did need to align it but didn’t really change anything as I can’t get into the range where it would be wide open 😞 cycles as you’d expect when turning the ignition on and settles lined up now. Battery was knackered when I got the bike so I’ve replaced it, does anything else need resetting/setting up after?

                          Temp sender I’ll get ordered as won’t do much good broken if nothing else (yikes how much!)

                          2002 DT125R - Black

                          1 Reply Last reply
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                          • D d3cme

                            @NINJA said in Another New Guy:

                            @d3cme Your water temp sensor may be knackered? Which is a possible cause to your problems, but it sounds like you have another problem causing the restriction. Is the power valve set up correctly? Has the YPVS (?) air bottle been removed? It's number 35 in this pic, it comes off the intake between the carb and air filter box;

                            https://www.fowlersparts.co.uk/parts/4171936/dt125r-3rmm-2002-050-b/intake

                            I can’t see anything missing but not sure I can see that part exactly.. will need to strip it back a bit more to see for sure I think.

                            While I was looking I’ve got 2 ports on the carb without anything on, I got some pics and will look on that site to see if I can see the same view for the carb and work out what they are.

                            NINJAN Offline
                            NINJAN Offline
                            NINJA
                            wrote on last edited by NINJA
                            #22

                            @d3cme You can't miss it dude, it sits against the frame next to the air filter cover, aka that black bottle between the fuel tap and the sprocket;

                            Yamaha DT125R 2003-8.JPG

                            Take and post a pic of your bike the same as the pic I posted above please dude.

                            SEDUCED BY THE DARK SIDE!!!

                            D 1 Reply Last reply
                            1
                            • NINJAN NINJA

                              @d3cme You can't miss it dude, it sits against the frame next to the air filter cover, aka that black bottle between the fuel tap and the sprocket;

                              Yamaha DT125R 2003-8.JPG

                              Take and post a pic of your bike the same as the pic I posted above please dude.

                              D Offline
                              D Offline
                              d3cme
                              wrote on last edited by
                              #23

                              @NINJA said in Another New Guy:

                              @d3cme You can't miss it dude, it sits against the frame next to the air filter cover, aka that black bottle between the fuel tap and the sprocket;

                              Yamaha DT125R 2003-8.JPG

                              Take and post a pic of your bike the same as the pic I posted above please dude.

                              I deffo don’t have that! I’ve got the bracket now I know where it sits... can’t see where it would connect on that elbow though?

                              alt text

                              2002 DT125R - Black

                              D CalumC 2 Replies Last reply
                              0
                              • D d3cme

                                @NINJA said in Another New Guy:

                                @d3cme You can't miss it dude, it sits against the frame next to the air filter cover, aka that black bottle between the fuel tap and the sprocket;

                                Yamaha DT125R 2003-8.JPG

                                Take and post a pic of your bike the same as the pic I posted above please dude.

                                I deffo don’t have that! I’ve got the bracket now I know where it sits... can’t see where it would connect on that elbow though?

                                alt text

                                D Offline
                                D Offline
                                d3cme
                                wrote on last edited by
                                #24

                                @d3cme said in Another New Guy:

                                @NINJA said in Another New Guy:

                                @d3cme You can't miss it dude, it sits against the frame next to the air filter cover, aka that black bottle between the fuel tap and the sprocket;

                                Yamaha DT125R 2003-8.JPG

                                Take and post a pic of your bike the same as the pic I posted above please dude.

                                I deffo don’t have that! I’ve got the bracket now I know where it sits... can’t see where it would connect on that elbow though?

                                alt text

                                The elbow on mine looks like the alternate ‘19’ in the diagram. Not sure what it means though? No YPVS? different YPVS?

                                2002 DT125R - Black

                                1 Reply Last reply
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                                • D d3cme

                                  @NINJA said in Another New Guy:

                                  @d3cme You can't miss it dude, it sits against the frame next to the air filter cover, aka that black bottle between the fuel tap and the sprocket;

                                  Yamaha DT125R 2003-8.JPG

                                  Take and post a pic of your bike the same as the pic I posted above please dude.

                                  I deffo don’t have that! I’ve got the bracket now I know where it sits... can’t see where it would connect on that elbow though?

                                  alt text

                                  CalumC Offline
                                  CalumC Offline
                                  Calum
                                  wrote on last edited by
                                  #25

                                  @d3cme That's fine, older DTR's don't have that bottle. I removed it from my DTRE and used an older style boot. Eventually deleted it entirely by using a pod filter.

                                  Always Originate, Never Pirate!

                                  D 1 Reply Last reply
                                  1
                                  • CalumC Calum

                                    @d3cme That's fine, older DTR's don't have that bottle. I removed it from my DTRE and used an older style boot. Eventually deleted it entirely by using a pod filter.

                                    D Offline
                                    D Offline
                                    d3cme
                                    wrote on last edited by
                                    #26

                                    @Calum said in Another New Guy:

                                    @d3cme That's fine, older DTR's don't have that bottle. I removed it from my DTRE and used an older style boot. Eventually deleted it entirely by using a pod filter.

                                    When you say older though, mines a 2002 so later DTR, but early if compared to DTX/DTRE I think? Looks like it’s how it should be as opposed to obviously missing something though.

                                    2002 DT125R - Black

                                    CalumC 1 Reply Last reply
                                    0
                                    • D d3cme

                                      @Calum said in Another New Guy:

                                      @d3cme That's fine, older DTR's don't have that bottle. I removed it from my DTRE and used an older style boot. Eventually deleted it entirely by using a pod filter.

                                      When you say older though, mines a 2002 so later DTR, but early if compared to DTX/DTRE I think? Looks like it’s how it should be as opposed to obviously missing something though.

                                      CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #27

                                      @d3cme But it's not UKDM so who knows.

                                      What I mean is, that not all DTRs came fitted with those bottles.

                                      Always Originate, Never Pirate!

                                      D 1 Reply Last reply
                                      1
                                      • CalumC Calum

                                        @d3cme But it's not UKDM so who knows.

                                        What I mean is, that not all DTRs came fitted with those bottles.

                                        D Offline
                                        D Offline
                                        d3cme
                                        wrote on last edited by
                                        #28

                                        @Calum good point, thank you!

                                        2002 DT125R - Black

                                        NINJAN 1 Reply Last reply
                                        0
                                        • D d3cme

                                          @Calum good point, thank you!

                                          NINJAN Offline
                                          NINJAN Offline
                                          NINJA
                                          wrote on last edited by
                                          #29

                                          @d3cme My DTR was a 2002 and when I removed that boost bottle the bike did not accelerate as fast, plus I lost 10mph off the top speed. As soon as I put it back on the bike was fast again. Now having no bottle may not affect Rpm's but it did slow the bike down. However if the CDI is mapped for a boost bottle, then surely the lack of one would affect the bikes performance???

                                          SEDUCED BY THE DARK SIDE!!!

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