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DT125R FORUM

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  4. Temp gauge trouble shooting

Temp gauge trouble shooting

Scheduled Pinned Locked Moved Electrics
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  • CalumC Calum

    @declan Thermistor: an electrical resistor whose resistance is greatly reduced by heating, used for measurement and control.

    I presume that's how the DTR does it.

    Yes they will eventually fail like most things. It's the cheapest place to start looking.

    Simple to test, measure it's resistance cold, heat it up, measure it's resistance hot.

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by declan
    #5

    @calum I'll look into it thank you Calum

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    • MightymanM Offline
      MightymanM Offline
      Mightyman
      wrote on last edited by
      #6

      If it hasn't worked since you first got the bike, you may have the wrong one installed. There are two different types.

      TDR 125 - 2001

      declanD 2 Replies Last reply
      0
      • MightymanM Mightyman

        If it hasn't worked since you first got the bike, you may have the wrong one installed. There are two different types.

        declanD Offline
        declanD Offline
        declan
        wrote on last edited by
        #7

        @mightyman looks pretty old guy said that it was working but he was a compulsive liar so I highly doubt it

        declanD 1 Reply Last reply
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        • declanD declan

          @mightyman looks pretty old guy said that it was working but he was a compulsive liar so I highly doubt it

          declanD Offline
          declanD Offline
          declan
          wrote on last edited by
          #8

          @declan the needle moves in the clocks when the key is turned so I know that works

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          • MightymanM Mightyman

            If it hasn't worked since you first got the bike, you may have the wrong one installed. There are two different types.

            declanD Offline
            declanD Offline
            declan
            wrote on last edited by
            #9

            @mightyman do any of you lads recommend any other systems like universal temp gauges

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            • J Offline
              J Offline
              Jens Eskildsen
              wrote on last edited by
              #10

              I have an universal temp gauge on my radiator, wrosk good.
              Goes on pretty hard, but fits both my Dt and my wr250r

              http://www.ebay.com/itm/Universal-1-3-Bar-Thermo-Thermostatic-Radiator-Cap-Cover-Water-Temperature-Gauge/371712652878?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

              terry.tzT declanD 2 Replies Last reply
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              • NottsbikerN Offline
                NottsbikerN Offline
                Nottsbiker
                wrote on last edited by
                #11

                How hot is the bike running?

                Might be a daft question but is it getting hot enough to show on the gauge. I seem to remember my previous DT-R's would run just under halfway on the gauge.

                CalumC 1 Reply Last reply
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                • NottsbikerN Nottsbiker

                  How hot is the bike running?

                  Might be a daft question but is it getting hot enough to show on the gauge. I seem to remember my previous DT-R's would run just under halfway on the gauge.

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #12

                  @nottsbiker If the themostat has been removed, then it's going to take a VERY long time to warm up.

                  Very bad for engines running without a thermostat.

                  Always Originate, Never Pirate!

                  1 Reply Last reply
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                  • J Jens Eskildsen

                    I have an universal temp gauge on my radiator, wrosk good.
                    Goes on pretty hard, but fits both my Dt and my wr250r

                    http://www.ebay.com/itm/Universal-1-3-Bar-Thermo-Thermostatic-Radiator-Cap-Cover-Water-Temperature-Gauge/371712652878?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

                    terry.tzT Offline
                    terry.tzT Offline
                    terry.tz
                    wrote on last edited by
                    #13

                    @jens-eskildsen thank you for that I'm going to get one as one it looks cool and mine rises but its never ever above 1/8-1/4 on the gauge might be the thermostat is not reading right anymore but it could be fine so thanks

                    "Muddy water is best cleared by leaving it alone" Alan Watts

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                    • NottsbikerN Offline
                      NottsbikerN Offline
                      Nottsbiker
                      wrote on last edited by
                      #14

                      Sorry only skim read

                      Yes is going to take for ever to get up to operating temperatures with no stat

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                      • J Offline
                        J Offline
                        Jens Eskildsen
                        wrote on last edited by
                        #15

                        Sounds right with the reading, mine is just above where the line in the display starts to thicken, but will get hot in deep sand or slow technical trails.

                        Photo for clarification, mine is usually well below this reading:
                        https://i.ytimg.com/vi/QkRvx66dWc0/maxresdefault.jpg

                        terry.tzT 1 Reply Last reply
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                        • J Jens Eskildsen

                          Sounds right with the reading, mine is just above where the line in the display starts to thicken, but will get hot in deep sand or slow technical trails.

                          Photo for clarification, mine is usually well below this reading:
                          https://i.ytimg.com/vi/QkRvx66dWc0/maxresdefault.jpg

                          terry.tzT Offline
                          terry.tzT Offline
                          terry.tz
                          wrote on last edited by
                          #16

                          @jens-eskildsen mine don't get that far even when I been off road but I am running pure water doubt it could make that much difference but we will see as I'm getting one anyway they look good 😀

                          "Muddy water is best cleared by leaving it alone" Alan Watts

                          declanD 1 Reply Last reply
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                          • terry.tzT terry.tz

                            @jens-eskildsen mine don't get that far even when I been off road but I am running pure water doubt it could make that much difference but we will see as I'm getting one anyway they look good 😀

                            declanD Offline
                            declanD Offline
                            declan
                            wrote on last edited by
                            #17

                            @terry-tz mine doesent read at all and my bike warms up real quick faster than my 4 stroke it gets really hot but just seems that it's the way the engine likes it tbh since I don't cruise any where it's always full throttle If the roads clear

                            terry.tzT 1 Reply Last reply
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                            • declanD declan

                              @terry-tz mine doesent read at all and my bike warms up real quick faster than my 4 stroke it gets really hot but just seems that it's the way the engine likes it tbh since I don't cruise any where it's always full throttle If the roads clear

                              terry.tzT Offline
                              terry.tzT Offline
                              terry.tz
                              wrote on last edited by terry.tz
                              #18

                              @declan ye same and I'm not sure I think it moves a tiny bit il take a photo and just look like a d!ck later and keep at in the band everywhere I go I can imagine the looks now when I'm at traffic lights with my purple helmet 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆

                              "Muddy water is best cleared by leaving it alone" Alan Watts

                              declanD 1 Reply Last reply
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                              • terry.tzT terry.tz

                                @declan ye same and I'm not sure I think it moves a tiny bit il take a photo and just look like a d!ck later and keep at in the band everywhere I go I can imagine the looks now when I'm at traffic lights with my purple helmet 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆 😆

                                declanD Offline
                                declanD Offline
                                declan
                                wrote on last edited by
                                #19

                                @terry-tz 😂😂😂😂

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                                • J Jens Eskildsen

                                  I have an universal temp gauge on my radiator, wrosk good.
                                  Goes on pretty hard, but fits both my Dt and my wr250r

                                  http://www.ebay.com/itm/Universal-1-3-Bar-Thermo-Thermostatic-Radiator-Cap-Cover-Water-Temperature-Gauge/371712652878?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

                                  declanD Offline
                                  declanD Offline
                                  declan
                                  wrote on last edited by
                                  #20

                                  @jens-eskildsen does yours sit on 20 when cold why does it do this they all seem to?

                                  1 Reply Last reply
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                                  • terry.tzT Offline
                                    terry.tzT Offline
                                    terry.tz
                                    wrote on last edited by
                                    #21

                                    ???? I'm confused at what your asking him

                                    "Muddy water is best cleared by leaving it alone" Alan Watts

                                    declanD 1 Reply Last reply
                                    0
                                    • terry.tzT terry.tz

                                      ???? I'm confused at what your asking him

                                      declanD Offline
                                      declanD Offline
                                      declan
                                      wrote on last edited by
                                      #22

                                      @terry-tz 0_1503246991425_IMG_1518.JPG

                                      Stone cold it sits on 20.c every pic I can find shows the needle on exactly that

                                      1 Reply Last reply
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                                      • J Offline
                                        J Offline
                                        Jens Eskildsen
                                        wrote on last edited by
                                        #23

                                        Havent noticed, but I tested at boiling temp and it was spot on.

                                        declanD 1 Reply Last reply
                                        0
                                        • J Jens Eskildsen

                                          Havent noticed, but I tested at boiling temp and it was spot on.

                                          declanD Offline
                                          declanD Offline
                                          declan
                                          wrote on last edited by
                                          #24

                                          @jens-eskildsen mind looking for me when you can?

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