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    • S
      SpookDog last edited by SpookDog

      Again!
      I believe (from searching) that the standard 28mm flatside carb is 210? (Mine has what appears to be a 180) I want to get the standard size jets as a jumping off point, can anyone tell me the standard main and pilot jet sizes please?
      I have searched for both with nothing on the pilot...

      P.S. are the needles marked for size, and if they are, how/where?...

      Cheers!...

      GoProKid95 1 Reply Last reply Reply Quote 0
      • Calum
        Calum last edited by

        What year is your model?

        Earlier DTRs ran 240 main jet. The later ones 210.

        S 1 Reply Last reply Reply Quote 1
        • S
          SpookDog @Calum last edited by

          @calum
          That’s the thing, it’s such a mongrel. 3bn casings, 3mb barrel & head, flatslide carb (early ones had roundslide ‘stubby’ carbs, no?) So I don’t really know what to look for...

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

            I think most UK Specs are 3BN cases, very early '88 years ran 3BN cylinders.

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            • GoProKid95
              GoProKid95 @SpookDog last edited by

              @spookdog

              I would say your best bet for Jetting would be starting with a 210 main jet found in 04 to 07 models. Set the needle clip one up for the lowest position, wind the air mixture screw (from all the way in) to around a 1/4 turn and start from there!

              ** assuming you’ve got a standard Mikuni TM28 Flatslide Carb!

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