In this video we finally get to have some fun hooping our racing go kart. We were given a set of miscellaneous expansion pipes with the purchase of this kt100 kart so we figured that we would put them to good use and make a video out of how they changed the performance.
We were able to narrow it down to a couple of choices and found that there were 2 different types of pipe. One for low end power band and one for a more aggressive driving, higher end power band. Either way both types are great and it really just depends on how you would like to drive or what track you are one.
Thanks for watching and be sure to subscribe for some more awesome 2 stroke kart content!
**Be sure to check your local laws before driving any non-registered motorized vehicle. Do not attempt these activities at home. All content produced by Build Break Repeat is for entertainment purposes only.**
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*Gas Tank used in this video*
-http://www.gopowersports.com/2-qt-plastic-fuel-tank/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video

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By YTB

20 thoughts on “2-stroke racing go kart expansion pipe shootout!”
  1. Avataaar/Circle Created with python_avatars PabloSkidsgofar says:

    Hey there, what mixture were you running?

  2. Avataaar/Circle Created with python_avatars Jake thesnake says:

    B1 is a low end pipe, the second pipe looks like a classic Blimpie pipe. The higher the number the higher the power band in relation to rpm's. G4 or L4 would be a high end pipe etc.

  3. Avataaar/Circle Created with python_avatars gage rollins says:

    I have the same exact go kart. They were 1600 dollars in 1998 and it's a "margay kt100 Yamaha kart" is what it said in the sales paper

  4. Avataaar/Circle Created with python_avatars 3000 gt says:

    What is the name of those sealed expansion chambers I can't find them

  5. Avataaar/Circle Created with python_avatars Alec Upfold says:

    Very entertaining videos.
    Don't worry about the octane too much. If your ignition timing is fixed then boosting the octane is pointless.

  6. Avataaar/Circle Created with python_avatars Gary Peterson says:

    The length of pipe before it is crucial too. Try different lengths to fine tune the power band.

  7. Avataaar/Circle Created with python_avatars Big Cazza says:

    your pipes are pretty shit compared to available solutions, on bitumen that motor can hit 16000 rpm+ on dirt ive even seen them do high 15k rpm and there's one that targets 16250 rpm

  8. Avataaar/Circle Created with python_avatars elijah cormier says:

    2 stokes need back pressure, I believe that the exhaust you put on was creating more back pressure which may have added more power all around.

  9. Avataaar/Circle Created with python_avatars nasanction says:

    You still haven't fixed the clutch?

  10. Avataaar/Circle Created with python_avatars PowerOf One says:

    I want power both ends…. πŸ™

  11. Avataaar/Circle Created with python_avatars edgars lacis says:

    Guys i think it has a 2 stroke

  12. Avataaar/Circle Created with python_avatars Rob Ormiston says:

    I have the same kart. Emmick kart with the Yamaha KT 100 motor. Mine is a mid 1980's it will go 86 at 14,000 rpm. You can change the power band by shortening the header pipe too. I have the same steering cowl and electronics. I will look next time to see if it has an M in the seat. But I think it does. If had a few big racers want to buy my race pipe.

  13. Avataaar/Circle Created with python_avatars Luca Merauta says:

    You know that when you let go the throttle the engine is no more lubricating….

  14. Avataaar/Circle Created with python_avatars way2dumb says:

    THAT STUFF YOU SAY ABOUT THE POWER CURVE OF 2 STROKE MOTORS IS TOTALLY WRONG.
    bloody hate caps lock

  15. Avataaar/Circle Created with python_avatars Bj Akers says:

    Change pipe change the jets poor cart won't last long I'd love to buy it…

  16. Avataaar/Circle Created with python_avatars DIRTY 1 says:

    what kind of header are yall usin

  17. Avataaar/Circle Created with python_avatars Hunter Potter says:

    I love your videos by HunterπŸ˜ŽπŸ˜ŽπŸ˜ŽπŸ˜ŽπŸ˜ŽπŸ˜ŽπŸ˜πŸ˜πŸ˜πŸ˜πŸŽ…πŸŽ…πŸŽ…πŸŽ…

  18. Avataaar/Circle Created with python_avatars Dylan DenHaese says:

    That isnt supposed to idle it burns out the clutch

  19. Avataaar/Circle Created with python_avatars Dylan DenHaese says:

    Why is that thing so lean holy shit

  20. Avataaar/Circle Created with python_avatars Dylan DenHaese says:

    That engine doesnt have apowerband

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