Home Forums 2-Cycle Racing TM K9B vs K9C

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    • #64253

      Hello all,

      Mods, if this isn’t the right section for this question, please move to the correct location.

      I have just bought a TM K9B engine for my kart that is claimed to be fresh and ready to run, and by the looks of things it is.  As I research replacement parts, I see more parts available for the K9C model.

      Can anyone tell me the difference between the B and C model of these engines?  I have searched here and google but have come up empty handed.  I really want to know what parts are and are not interchangeable, and what the differences are if any.

      Thank you!

      2008 GP 8 Honda 125 / TM K9B
      Building F125 Enduro

    • #64259
      Glenn L Riggs

      Both models are very similar and parts are interchangeable the c has a little different exhaust port difference most of the differences are in the pipe a b pipe has more torque and the c is a little higher in rpm. It is also legal now to use different tm parts hope this helps.

    • #64322

      Glenn, this does help.  Thank you!

      2008 GP 8 Honda 125 / TM K9B
      Building F125 Enduro

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