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DT125R FORUM

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Dt125r jetting

Scheduled Pinned Locked Moved Tuning
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  • M Offline
    M Offline
    micheal cox
    wrote on last edited by
    #1

    Hi guys I have a 2000 dt 125 r and I've gutted stock exhaust and wanting to upjet and remove the snorkel what size should I be looking at getting? thanks in advance

    declanD 1 Reply Last reply
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    • M micheal cox

      Hi guys I have a 2000 dt 125 r and I've gutted stock exhaust and wanting to upjet and remove the snorkel what size should I be looking at getting? thanks in advance

      declanD Offline
      declanD Offline
      declan
      wrote on last edited by
      #2

      @micheal-cox generally speaking you want to keep your snorkel and there isn't much need to upjet in my opinion

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      • CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #3

        Unless younhave problem, you shouldn't need to upjet.

        If you are going down the performance route then you will want an aftermarket pipe anyway. Plus do away with the airbox completely.

        Always Originate, Never Pirate!

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        • DartyD Offline
          DartyD Offline
          Darty
          wrote on last edited by Darty
          #4

          @micheal-cox I actually have a 00'/01' DTR, so you should try...

          250 Main Jet.

          1 Notch richer with the Needle

          Snorkel off/with complete Dep system,.. should see the best result.

          The 99'-03' bikes are still a little lean from factory on the main jet,

          Keep it real

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          • J Offline
            J Offline
            Jens Eskildsen
            wrote on last edited by
            #5

            2strokes in general is jetted plenty rich, to make sure they dont seize.

            I run my 94 R with snorkel removed, and the airbox opened slightly more.
            Stock mainjet, and half a notch leaner on the needle. The mainjet is still plenty rich.

            Stock header, and aftermarked end can, otherwise stock.

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