In this video we finally get to have some fun hooning our racing go kart. We spent time installing a smaller sprocket as well as installing a tuned expansion pipe specifically for top speed on our go cart.
**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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MUSIC - If you liked the music in this video be sure to check out my buddies Soundcloud!
https://soundcloud.com/shockedeel/j-a-m
https://bandcamp.com/download?id=3635175367&ts=1515906951.1490003405&tsig=a6d42a087ba6c6a743af77e5e10da1df&type=track
https://andrewapplepie.bandcamp.com/track/jimmi
*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

21 thoughts on “2 stroke racing go kart top speed!”
  1. Avataaar/Circle Created with python_avatars Craig Jones says:

    Change out the clutch

  2. Avataaar/Circle Created with python_avatars bjlracer says:

    There is way more on the table for this kart. I used to race these and I could have got 50+ mph with ease using a low end pipe and geared for the corners. Try leaning out the high side and let the RPM'S sing

  3. Avataaar/Circle Created with python_avatars roger lawrence white says:

    Am wondering how fast it could go using the kt100 engine on a bike like those motorized bicycle kits, definitely a lot faster than a 212cc predator engine, maybe you guys could try it ? Either way, you make great videos and wishing you many years of safe and fun riding

  4. Avataaar/Circle Created with python_avatars DRIVING FAILD says:

    Internet said the kt 100 is the best 2 stork

  5. Avataaar/Circle Created with python_avatars William Brown says:

    I just got my dads kt100 from when he raced it in college and I have it running now but I have no clue what I’m doing and my dad forgot what everything does lol anyone have any tips or things to look for also what does the T and lever do on the carb?

  6. Avataaar/Circle Created with python_avatars DJ NUKE's BASS BOOSTED says:

    You guys mist use a engine with gears. Must more performance. Sounds like the cluth is sliping on the cart. But good job boys. Im now busy with a 300cc 2stroke go cart with electronic gear shifter

  7. Avataaar/Circle Created with python_avatars The Kid says:

    Some kind of safety gear … somethin eeesh lol

  8. Avataaar/Circle Created with python_avatars The Kid says:

    I’m glad your balls didnt flabber out Lmao !
    Can’t wait to get my fresh blue printed Parilla Leopard 125cc goin by this weekend !

  9. Avataaar/Circle Created with python_avatars Dayoneaquatics says:

    Hey guys ! Is there any way to message you guys ? I have a kart that won’t stay running, has the kt100 2stroke as well !

  10. Avataaar/Circle Created with python_avatars WD Tripps says:

    Man, when I raced using 5hp Briggs, I would've killed that 2 stroke. But it was punched 80 over, had racing cam, two fuel pumps for the alcohol, straight pipe, unbreakable rod, special head, valves, ect. Top speed was 112. The engine builder knee his craft well. We even put a flywheel off of a 3.5 H. P. Engine for torque for the short dirt tracks. Damn thing sounded like a small block Chevy. Long story short, back then I wanted to put a cr 80 2 stroke on one with the six speed. Ofcoase stock was sheer blastphomy, nothing was ever stock. Yes an 80cc is small, but I was only 11 years old. Yea my old 5hp Briggs would have killed that 2 stroke. Get the clutch fixed, use proper gas ratio, go a little lean, shave the head a cunt hair, bore it 60 over and so a few other things to the carb. That thing isn't close to it's potential.

  11. Avataaar/Circle Created with python_avatars adam b says:

    You'll never get a top speed run if you dont grab youd balls. I dont think its winding out enough, the engine doesnt sounds like it's pushing the rpm it should be.

  12. Avataaar/Circle Created with python_avatars Charlie Chesbro says:

    You definitely were not getting to top rpm you need either a longer road or put a bigger sprocket on it so you have more gear to hit top rpm witch is like 14000 rpm for those motors

  13. Avataaar/Circle Created with python_avatars Krusty says:

    For top speed, you gotta sort the carb and clutch tuning setup first. Sounds rich on top end, and the temp gage reading 263F is WAY too cold, implying rich as shit.. that is why it is not hitting top rpm, just burbling and breaking up. The Clutch should be set to engage at the rpm torque peak of the motor (for racing) or lower (to save clutch wear and tear). Also to get to the ultimate top end speed you need a larger clutch sprocket.

  14. Avataaar/Circle Created with python_avatars Andrew Senss says:

    Throw a 53tooth sprocket on that bad boy….made my stage 3 212 hit 59mph on a 8"tire!

  15. Avataaar/Circle Created with python_avatars jzero32 says:

    HATE those wet clutches, always a pain in the ass. Why I went to a shifter – NO clutch or chain problems with minimal maintenance compared to the wet.

  16. Avataaar/Circle Created with python_avatars Mike Rose says:

    How many cc's is the motor your running.

  17. Avataaar/Circle Created with python_avatars Pro Racer says:

    The clutch is fucking fucked 😭😭😢😢

  18. Avataaar/Circle Created with python_avatars Hola! Cameron Mcculloch says:

    Got any carts or mini bikes you'd sell? Looking to pick one up around 500$ thanks.

  19. Avataaar/Circle Created with python_avatars Big Oof says:

    That clutch is slipping way too much lol

  20. Avataaar/Circle Created with python_avatars TrackMasterNate says:

    I knew what i was going to see with the sprocet change. It can barely move itself

  21. Avataaar/Circle Created with python_avatars Todd Bearden says:

    You must be hiding my comments from the public. Everybody else gets 10-15 12 likes and I get one every time and it's probably from build break and repeat as in the public don't see my comments. I think it's because I gave constructive criticism and that's pretty shitty

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