Navigation

    DT125R FORUM

    • Register
    • Login
    • Search
    • Recent
    • Tags
    • Popular
    • Users
    • Groups

    What temp should a dtr125 run at

    DTR
    8
    31
    1674
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • R
      ryanjimccfc last edited by

      I have a digital dash on my dtr125 just wondering what temp the bike should run at

      declan 1 Reply Last reply Reply Quote 0
      • declan
        declan @ryanjimccfc last edited by declan

        @ryanjimccfc mine runs at 90-100•c I let it cool if it reaches 110 (coolant sensor)

        Irongamer727 1 Reply Last reply Reply Quote 0
        • F
          finnerz89 last edited by

          Depends where the temp sensor is

          1 Reply Last reply Reply Quote 0
          • R
            ryanjimccfc last edited by

            I have stage 6 clocks

            declan 1 Reply Last reply Reply Quote 0
            • declan
              declan @ryanjimccfc last edited by

              @ryanjimccfc but where is the temp sensor

              1 Reply Last reply Reply Quote 0
              • Irongamer727
                Irongamer727 last edited by

                Mine runs at 57-60 degrees. If you stand still sometimes 80 degrees.

                1 Reply Last reply Reply Quote 0
                • Irongamer727
                  Irongamer727 @declan last edited by

                  @declan that's REALLY hot. Something is weird. What then gauge are you using?

                  1 Reply Last reply Reply Quote 0
                  • R
                    ryanjimccfc last edited by

                    It's in the cylinder head

                    1 Reply Last reply Reply Quote 0
                    • F
                      finnerz89 last edited by

                      My temp probe sits in the radiator fins (it's a trailtech) and the max I've recorded is 87degs.
                      Bear in mind that's with waterless coolant so nowhere near it's boiling point and it runs higher anyway.

                      1 Reply Last reply Reply Quote 0
                      • Irongamer727
                        Irongamer727 last edited by

                        Mine is in the cylinder head.

                        declan 1 Reply Last reply Reply Quote 0
                        • R
                          ryanjimccfc last edited by

                          Mine goes upto about 88 some times just wondering if that's to hot

                          F 1 Reply Last reply Reply Quote 0
                          • F
                            finnerz89 @ryanjimccfc last edited by

                            @ryanjimccfc that's fine mate

                            1 Reply Last reply Reply Quote 0
                            • declan
                              declan @Irongamer727 last edited by

                              @irongamer727 i have a temp reading coolant cap yea I thought it was a little hot but it seems to run fine and iv had a lot hottter engines than that

                              Calum 1 Reply Last reply Reply Quote 0
                              • Calum
                                Calum @declan last edited by Calum

                                @declan Bear in mind, by the time the temperature at the coolant cap reaches X, it's already too late.

                                Personally, I'd run the temperature underneath the spark plug using a thermal coupling, or failing that at the cylinder head.

                                If your engine is bog standard, then you haven't got to worry, but once you start modifying, temperature is key to understanding the risks of detonation.

                                So getting as accurate reading as possible is going to help.

                                The hotter the engine, the more at risk you are to detonation. My DT runs savagely hot in traffic at idle even reaching temperatures of 110 degrees celcius.

                                But you must appreciate the forumula

                                pV = nrt

                                The specific latent heat of a substance is increased as pressure increases. So whilst water may boil at 100 degrees at sea level, that's not the case at 1.3 bar, which the radiator cap is rated to.

                                1 Reply Last reply Reply Quote 0
                                • Minia
                                  Minia last edited by

                                  You shouldn't need to really worry until it sits at more than 105 or so.

                                  declan 1 Reply Last reply Reply Quote 0
                                  • declan
                                    declan @Minia last edited by

                                    @minia mine sits at 100 at the cap so I guess mines overheating? I don’t get coolant over boil

                                    Calum Minia 2 Replies Last reply Reply Quote 0
                                    • Calum
                                      Calum @declan last edited by

                                      @declan As I say, pressure needs to exceed 1.3 bar, which is massive. If you imagine my car only generates 0.8 bar of boost pressure.

                                      This is a why waterless coolant has its benefits. 1.3 bar of pressure is exerted on the entirety of your coolant system. It's going to be mainly the radiator that will take the most damage. The drawback is that the specific heat capacity of it is less, resulting in higher operating temperatures.

                                      declan 1 Reply Last reply Reply Quote 0
                                      • declan
                                        declan @Calum last edited by declan

                                        @calum have you seen the workshops videos on yt about waterless coolant I wouldn’t touch the stuff it’s a good listen either way if you get free time

                                        1 Reply Last reply Reply Quote 0
                                        • Minia
                                          Minia @declan last edited by

                                          @declan You're not overheating as long as your engine and coolant system still run efficiently. Keep in mind when water is pressurised it requires more energy for it to boil, which is why if you're riding hard on a bike your thermometer might say 105 celcius, but actually it's fine because it is pressurised and therefore your boiling point is raised.

                                          And besides you will feel it if your engine is struggling, it will smell hot, you'll lose power, you'll hear it struggle at lower rpms etc

                                          declan 1 Reply Last reply Reply Quote 0
                                          • declan
                                            declan @Minia last edited by

                                            @minia it’s not something that worries me tbh I ain’t rode it in ages it’s rotting on the garden sadly

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post