DT125X DT125R Engine tuning stage Part 2

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  • Опубліковано 24 сер 2024
  • We are going to show our most recent project we been working on, a tuning stage onto DT125X engine riding on open road.
    In this video you can learn:
    -how to check ignition timing
    -how to change OEM ignition timing
    -Carburetor setup
    Stay tuned for part 3 we aiming to reach 25-30 HP.
    Follow us at Instagram: @jl.motorsport.uk

КОМЕНТАРІ • 78

  • @supunvishka3994
    @supunvishka3994 3 роки тому +2

    Great vidio and nice ride

  • @AdriftersLife
    @AdriftersLife 3 роки тому +2

    Big fan!

  • @Mt24855
    @Mt24855 7 місяців тому +1

    My friend used to have one with a big bore kit i think it was 180cc if i remember rightly and he used to leave my type s civic sitting while on the back wheel 😂 great bikes unfortunately like gold dust now and insurance companies dont wanna touch you because there over the 15hp limit

  • @AdriftersLife
    @AdriftersLife 3 роки тому +1

    We want more !!!!!! 🙏🏻

    • @JLMotorsport
      @JLMotorsport  3 роки тому

      Waiting for Dyno shops to open again =)

    • @AdriftersLife
      @AdriftersLife 3 роки тому

      @@JLMotorsport my set up is
      Top perfomance krukas
      Athena 170cc + port tuning
      EBC permanent clutch
      Vforce v4 reeds
      At the moment stock 28mm carb
      At the moment dep exhaust
      Waiting on custom exhaust
      And carb ;) love this video’s
      If u have a free dyno I would love to come for fine tuning :)

    • @JLMotorsport
      @JLMotorsport  3 роки тому

      @@AdriftersLife that sounds like a spicy project ! dyno's in UK are quite expensive.

  • @streetracer6752
    @streetracer6752 Рік тому +3

    What is the size sprocket kit?

  • @karumasPT
    @karumasPT 2 роки тому +2

    Isso pede mesmo ai a valvula a trabalhar!! Fica altamente. Ja tive assim uma preparação parecida 🤣

  • @dannymiester5825
    @dannymiester5825 Рік тому +2

    Your neighbours must love you lol

    • @dannymiester5825
      @dannymiester5825 Рік тому +1

      I have a dt200r but it is not fast, it has a 28mm carb, do you think a 30mm will get more power?

    • @JLMotorsport
      @JLMotorsport  Рік тому +1

      they do 🤣

    • @JLMotorsport
      @JLMotorsport  Рік тому +1

      @@dannymiester5825 Sure, the bigger the better. But if you have everything else stock, its just not worth it.

  • @vukasinmijajlovic8102
    @vukasinmijajlovic8102 7 місяців тому

    i think its running lean on idle, you see how it hold rpm high then lowers it.

  • @jessebrown9046
    @jessebrown9046 3 роки тому +3

    Great videos bud! I put a 30mm pwk on my 200r with a wr200 pipe and I was wondering what jets to start with? What size jets are you using?

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      Start with 160-170 and try to lean it 5 points each time.

    • @jessebrown9046
      @jessebrown9046 3 роки тому +1

      I'll start with a 170 and plug chop and work my way down if need be, what pilot roughly do you think?, I thought maybe start with 40 or 42

  • @heimataihaoatai5103
    @heimataihaoatai5103 6 місяців тому

    hey my friend where did you get the extractor for the startor ?

  • @javir.s6377
    @javir.s6377 3 роки тому +2

    Un video poniendo un rotor , seria muy interesante :)

    • @JLMotorsport
      @JLMotorsport  3 роки тому +2

      ua-cam.com/video/RnZrHjOiVbQ/v-deo.html

  • @lizicskabela6096
    @lizicskabela6096 3 роки тому +2

    I use the same pwk carb and it sounds that it could do much more. The power has to load a bit for me. Was there any full throttle with full power? Regards

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      when you add a carb this size, you are increasing the quantity of air and fuel, so it means more time to burn, you might to increase the advance timing, but be careful, cause advance can eat your piston alive :)

  • @jonaskahl8474
    @jonaskahl8474 2 роки тому +1

    Amazing! Where did you got the stock ignition curve from? I have a Zeeltronic Cdi on mine and need a save map for the first startup.

    • @JLMotorsport
      @JLMotorsport  2 роки тому +1

      Have a look during the video I show it there. But you can get it from haynes handbook.

  • @anapaulapereira3255
    @anapaulapereira3255 3 роки тому +3

    like de portugal

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      Obrigado

    • @anapaulapereira3255
      @anapaulapereira3255 3 роки тому +2

      @@JLMotorsport e melhor se valvula ypvs ou com valvula ypvs

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      @@anapaulapereira3255 É um dos videos que possivelmente vamos abordar em breve caso haja interesse dos nossos subscritores.

    • @anapaulapereira3255
      @anapaulapereira3255 3 роки тому +2

      @@JLMotorsport tava a ver baracing dtr 125 a 208kh a milha dtr ta sen valvula

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      Este motor esta so retificado a 56,40mm, ou seja praticamente original.

  • @Renatomamen
    @Renatomamen 3 роки тому +2

    Boas pessoal, que graus de admissão e escape isso está? Pra só boosts e colaça taxada isso está a andar mesmo muita bem... parabéns

    • @Renatomamen
      @Renatomamen 3 роки тому +1

      É que taxa e squish estão a usar?

    • @JLMotorsport
      @JLMotorsport  3 роки тому +3

      We are using STD intake and exhaust timings as well as cylinder head. Only added 2 auxiliary ports to the exhaust.

  • @djCarterboi25
    @djCarterboi25 Рік тому +1

    Hi mate do you not need woodraff key after advancing the timing as fort it would just turn on crank or come loose and what gains you get from advancing it

    • @JLMotorsport
      @JLMotorsport  Рік тому +1

      The woodroof key is just to quickly assemble the flywheel. what really holds it together is the conical fitting, if you ever used a flywheel puller before you will know very well what I mean. ( Racing ignitions do not have woodroof keys)

    • @djCarterboi25
      @djCarterboi25 Рік тому

      @@JLMotorsport oh don’t they I’ve never known that cheers. So what do you gain from advancing the timing more revs?

    • @JLMotorsport
      @JLMotorsport  Рік тому

      @@djCarterboi25 depending on your carb/ cylinder setup you will gain loads more power/torque and revs. (be careful, it can seize your engine)

    • @djCarterboi25
      @djCarterboi25 Рік тому +1

      @@JLMotorsport I currently run 170 anthenna kit 32mm carb hopefully getting a stainless pipe this week

  • @CRM125R
    @CRM125R 7 місяців тому

    What piston did you use was it stock bore ?

    • @JLMotorsport
      @JLMotorsport  7 місяців тому +1

      Stock bore is 56mm, I used a 56,40 Wossner in this engine.

  • @kingkong81icloud
    @kingkong81icloud 10 місяців тому

    I have had 4 Yamaha DT125R, an a YZ 250 1991 but in new condition, I would pick my best DT125R, more fun than the YZ ,the YZ was brutal ,x race bike 2 fast and heavy , plus you don’t need to wear boots with a DT R, the older gen was better than the DT X , I don’t know why they changed it

  • @archiewalters1785
    @archiewalters1785 3 роки тому +2

    Is this build using a power valve servo ?

    • @JLMotorsport
      @JLMotorsport  3 роки тому

      Atm is pinned at fully open position.

    • @archiewalters1785
      @archiewalters1785 3 роки тому

      @@JLMotorsport what makes better power, having the servo working or having it fully pinned open ?

    • @JLMotorsport
      @JLMotorsport  3 роки тому

      @@archiewalters1785 we will figure it out in a dyno session

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      Stay tuned for part 3

    • @bradl6722
      @bradl6722 2 роки тому +1

      @@JLMotorsport when you releasing part 3

  • @ludovitch9527
    @ludovitch9527 3 роки тому +2

    What exhaust is that?

    • @JLMotorsport
      @JLMotorsport  3 роки тому +2

      Its fully custom made by us.
      Hand crafted one, fully stainless 👌

    • @ludovitch9527
      @ludovitch9527 3 роки тому +2

      @@JLMotorsport Sounds and looks great!

    • @JLMotorsport
      @JLMotorsport  3 роки тому +1

      @@ludovitch9527 yes Indeed 👌🏻

  • @Johnwick-vw5ox
    @Johnwick-vw5ox Рік тому +1

    Won't the flywheel just spin as no key?

    • @JLMotorsport
      @JLMotorsport  Рік тому

      The woodroof key is just to make it easier to assembly it (massive production) What makes it to lock in place is the conical taper on the shaft. (if you ever removed a flywheel you will know what I mean)

    • @Johnwick-vw5ox
      @Johnwick-vw5ox Рік тому +1

      Thanks for the reply.
      I thought you needed a key.
      I have learnt something new today.
      How much does it cost to do the same as what you have done to the dtr?

    • @JLMotorsport
      @JLMotorsport  Рік тому +1

      @@Johnwick-vw5ox under 1000 quid you can do something similar.

  • @pitpatepapatebom6868
    @pitpatepapatebom6868 Рік тому

    I bought my own dt125re 1 year ago
    Still cant make it start 😢
    Pain for living in 3rd world country

  • @AdriftersLife
    @AdriftersLife 3 роки тому +1

    Why are u running open carb?

  • @fabian_2takt222
    @fabian_2takt222 3 роки тому +1

    Hey wich Carb do you have on it?

    • @JLMotorsport
      @JLMotorsport  2 роки тому +1

      Keihin PWK 34mm

    • @doublet5755
      @doublet5755 2 роки тому +1

      @@JLMotorsport how do you put the 34 in the connector?

    • @JLMotorsport
      @JLMotorsport  2 роки тому +1

      @@doublet5755 you have to mill the original intake.

  • @BitbartDE
    @BitbartDE 3 роки тому +2

    Why not just buy a adjustable cdi and do it that way. Removing the metal piece from the crankshaft to put the flywheel in an other position isn't the most safe way. I saw engines where the flywheel got lose at high rpm and damaged the crank.

    • @BitbartDE
      @BitbartDE 3 роки тому +2

      I mean it still should have lights so why dont you buy a mvt ignition, Zeeltronic

    • @JLMotorsport
      @JLMotorsport  3 роки тому +4

      Hi, This is a budget build, custumer doesnt want to spend to much in this project that's why. if we had used a racing ignition we should get even more power out of it.
      Flywheel key does not hold the flywheel is only there to make ignition timing easy and accurate.

    • @Jokestbh
      @Jokestbh Рік тому

      @@JLMotorsport That isnt your bike and your hammering it lol ledgend

    • @JLMotorsport
      @JLMotorsport  Рік тому

      @@Jokestbh What kind of tuner would I be if I dont trust my own work ? 🤷‍♂️

  • @russi461
    @russi461 Рік тому +1

    250ml 2st waaaaaat

  • @cristianosilva4245
    @cristianosilva4245 3 роки тому +3

    esses motores dao problemas!!!

  • @davidjoe2581
    @davidjoe2581 8 місяців тому

    music is fiiing annoying!!!!

  • @selimiadelina9861
    @selimiadelina9861 3 роки тому

    Hello what name in facebook i search you but idont finde