DT125R FORUM

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

    Dtr mileage

    General Discussion
    6
    26
    1919
    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.
    • declan
      declan last edited by

      What’s your highest mileage your clocks have shown on your bikes my dt say over 140k that seems like it’s really high to me

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

        @declan my trip counter also says I’ve done 200 miles on my new tyres I’ve road my field probably twice and my estate once how’s that possible

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

          Well that simply isn't possible, since the maximum DTR clocks can read is 99,999.9 miles....

          Always Originate, Never Pirate!

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

            @calum my clocks are kmh am I doing the conversion wrong

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

              @declan Most likely. The highest I've seen clocks are around the 30k mark. And that's savage amount of miles on a DTR.

              Always Originate, Never Pirate!

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

                @calum my clock says 225665kmh

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

                  @declan Yeah the last digit is a decimal value mate. That's the mileage of my Starlet, which is exceptionally high.

                  It's 22'566.5 km, which is around 14k miles. Which is about the time you'd want to do a top end rebuild on these bikes.

                  Always Originate, Never Pirate!

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

                    @calum ohhh so I just got it wrong lol I already did the top end when I got it it’s still sweet

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

                      @declan Yeah I know, I was just saying, for future reference. That's a rule of thumb, not the rule itself. And depending on the state of tune for the bike it may need to be done more often. A bog standard DTR oiled with decent stuff should do around 12-15k miles. I'd do mine a hell of a lot sooner than that, just because it's cheaper to throw a new set of rings on there than it is to rebuild the engine.

                      Always Originate, Never Pirate!

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

                        @calum so at say like 12k miles your still running perfect but have a spare set of rings can you throw them on and get another 12k out of your piston or does it not work quite that well

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

                          @declan Try maybe once a year lol.

                          But then my barrel has been ported, larger intake and exhausts port cause excessive wear to the rings. When you start tuning, throw reliability out the window.

                          That said, didn't ride my bike this year so it won't need doing. And don't plan on using it next year, so I won't do it next year either.

                          No, you definitely wouldn't want to be doing 24k on a factory piston. Buy forged components and they will last a lot longer, but it's all about tolerances.

                          We are specifically talking 2 strokes here, but the principles apply to any mechanical engineering. So long as components are within tolerance, they should last.

                          But anything can happen, including manufacturing defects. So it's completely up to the builders discretion whether a component can be reused.

                          Always Originate, Never Pirate!

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

                            @calum so is my trip counter reading 40.6 too instead of 406

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

                              @declan I don't know, is it? The last digit on the end is a decimal point.

                              Always Originate, Never Pirate!

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

                                @calum if the last digit is a decimal point then yes it is

                                1 Reply Last reply Reply Quote 0
                                • P
                                  PJT95 last edited by

                                  Bought my bike at 22k miles. Piston went at 26k and scored barrel. It was still on original bore too.. piston swapped and going strong again, currently at 29k miles.

                                  Calum 1 Reply Last reply Reply Quote 0
                                  • Calum
                                    Calum @PJT95 last edited by

                                    @pjt95 Yeah...but it's not going to be making full power. And it won't last that long if the barrel is scored. And I don't know about you, but the last thing I want is the engine seizing whilst I'm doing 70mph...

                                    Always Originate, Never Pirate!

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

                                      @calum straight line ain’t too bad but on a corner is a death wish

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

                                        @declan Although he was coming off a corner, it seized on a straight.

                                        https://youtu.be/g5_A5oi7wC0?t=34s

                                        I just don't think it's worth the risk. If the bike isn't tip top, don't ride it.

                                        Always Originate, Never Pirate!

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

                                          @calum personally I wouldn’t run a bike with a screwed up top end unless I don’t mind losing it

                                          1 Reply Last reply Reply Quote 0
                                          • P
                                            PJT95 last edited by

                                            It was scored, I wasn't aware it was original piston until it went. I got it rebored and skimmed by Fahron Engineering so I'd say its in good shape now. Now I know how many miles this piston/ring and bore have done, I'll definitely be replacing rings when the time comes.

                                            Mine seized on the way home from work on coming off an island doing 35-40mph, it deffo scared me.

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