This is a full in-depth video of installing a Live Axle Kit and Billet parts onto our vintage #gokart project. These parts increase performance and reliability (and they look cool too) Together these modifications are our favorite upgrade for any kart!
PARTS LINKS

(Build Break Repeat is proudly sponsored by GoPowerSports)
Live Axle Kit (we used 36”): https://www.gopowersports.com/6-live-axle-kit/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Billet Rod: https://www.gopowersports.com/predator-performance-billet-connecting-rod/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Billet Flywheel: https://www.gopowersports.com/arc-speedway-billet-flywheel-212cc-non-hemi-predator/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
22lb Valve Springs: https://www.gopowersports.com/22lb-valve-springs/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Sprocket Hub: https://www.gopowersports.com/1-sprocket-and-drum-mounting-hub/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
22mm Mikuni kit x1: https://www.gopowersports.com/22mm-mikuni-carburetor-performance-kit-aftermarket/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Header x1: https://www.gopowersports.com/header-pipe-muffler-economy-coleman-200/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
6” Floater Wheel, No Offset, 5/8 Bearing, 13x5-6 Turf Tire x3: https://www.gopowersports.com/13-x-500-6-turf-tire-1/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Clutch, 10T 420 Chain x1: https://www.gopowersports.com/10t-3-4-bore-centrifugal-clutch-41-420/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
54T Sprocket x1: https://www.gopowersports.com/sprocket-48-60-teeth-41-420-chain-dual-pattern/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Drum Brake x1: https://www.gopowersports.com/4-brake-drum-1246-manco/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Pedals x1: https://www.gopowersports.com/vintage-go-kart-pedals/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Brake Cable x1: https://www.gopowersports.com/60-brake-cable/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Brake Band x1: https://www.gopowersports.com/4-manco-brake-band-with-clip/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Brake Band pin x1: https://www.gopowersports.com/brake-band-pin/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Throttle Cable x1: https://www.gopowersports.com/75-mikuni-go-kart-cable-straight-end/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Engine Mount x1: https://www.gopowersports.com/engine-mount-2/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Steering Wheel x1: https://www.gopowersports.com/steering-wheel/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
¼” Self-Tapping Bolt x2: https://www.gopowersports.com/self-tapping-bolt-1-4-governor-hole/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
PARTS USED (AMAZON AFFILIATE)
Orbital Sander- https://amzn.to/3XaEB9r
Krylon Gloss cherry Red - https://amzn.to/3qQH6BE
2k Clearcoat - https://amzn.to/3qOi4mX
Self-Etching Primer – https://amzn.to/3X9vB4o
Gloss Black Enamel - https://amzn.to/3JhT26a
Grip Tape – https://amzn.to/3NySiMi
Vinyl Seat Fabric - https://amzn.to/3PmgvHb
Seat Foam - https://amzn.to/3JgCStA
LINKS TO OUR NEW TOOLS AND EQUIPMENT: https://linktr.ee/BuildBreakRepeatChannel (Amazon Affiliate Links, if you buy something using our links it will help the channel!)
TOOLS
Tools we use from our channel partners:
HOBART Welding Equipment
https://www.hobartwelders.com/
Texas Metalworks 40x80 Welding Table
https://texasmetalworks.com/product/fully-fabricated-welding-table/
RogueFab Tubing Notcher
https://www.roguefab.com/product/versanotcher-universal-tubing-notcher/
SWAG Offroad PortaBand Table
https://www.swagoffroad.com/products/swag-portaband-pro-table
Optrel Grinding Mask
https://usa.optrel.com/en/products/augenschutz/helme-zum-schleifen-schneiden/products/show/clearmaxx/
https://www.youtube.com/watch?v=l1zHz8pYfyQ&ab_channel=AndrewApplepie
SOCIAL MEDIA
CHECK OUT OUR INSTAGRAM! https://instagram.com/build.break.repeat?igshid=ulwwhmio96an
MERCH
MERCHANDISE CUSTOM DESIGNED BY YOURS TRULY
https://teespring.com/stores/build-break-repeat
MUSIC
Background Music -Epidemic Sound Library
Intro Song - Jimmi by Andrew Applepie
Intro 0:00-0:15
Disassembly 0:15-2:31
Engine Build 2:31-6:14
Engine 6:14-11:31
Live Axle 11:31-13:47
Drive + Finale 13:47-17:10

In our last couple of videos, we took this vintage kenbar Streaker cart back to its former glory. Once we were done, we asked on Instagram what we should do next and the most comments we got were for our live axle kit from Go Power Sports and some Billet engine parts. So in today's video we'll be installing just that now. eating and debating tires I Don't have many tips besides getting a nice set of Tire spoons, maybe some tools like this one and then just struggle.

Now that we've got the tires off the old Wheels it's time to install them on the new Wheels which are keyed for our new live action. It's time to cut off this rear one wheel po setup. So I can weld in the bearing hangers for the live axle? Foreign: We're going to measure here from the spindle bracket and we're going to try and match the location of the old axle. Once we measured and located where our live axle bearing hangers were going to sit, we sanded down the paint and we pulled out our Hobart multi-hander welder.

As you can see, the welds turned out great and we love our Hobart welder because it makes projects like this. Quick and easy, foreign, foreign. We finished mounting the bearing hangers on the cart, covered up all the scuffs and scratches with a Fresh coat of paint and got it looking good as new. So now it's time to focus back on the engine.

In the last couple of videos, we took out the governor and put a Mikuni on it and now it's time to make it a little more bulletproof. So we've got some 22 pound valve springs to eliminate valve float at high RPM and we've got some pretty cool Billet parts. So for the next upgrade, we have this awesome Go Power Sports Billet Flywheel and it'll make a huge performance upgrade, especially when paired with a Billet rod. All right, don't go in there bud Hey! I really needed this Bud Thank you very much.

You're welcome All right! I Gotta go man back North Carolina Safe travels Thanks! Sorry about that guys. Last night we had picked up a hitchhiker and we let him use our bathroom. He said he was going back to North Carolina I've never seen them before but I hope he's uh, made it back safely. Now we're going to start breaking into this engine to install those Billet parts.

So we're going to start out with an eight millimeter socket and remove these bolts on the shroud foreign eight millimeter socket. We're going to remove the coil I'll get a three quarter inch socket and remove the nut that holds the starter Cup on. You can remove your starter cup and your fan and now we're going to remove the flywheel. Okay, so we put crowbars on the stronger parts of the block and we threaded a nut on to protect our threads and out comes the flywheel.

So now this giant piece of cast iron will not be exploding on us and you know, causing all bunch of injuries. A couple 10 mils to get the side casing off. So we started by getting our pissed into top dead center. So that's where these two circles there and on the cam would line up.
That just makes a little bit easier to get to your bolts. We then we took out our cam, our flat tappets, and our push rods. and then we're going to break free these bolts and see how the stock rod bearings are. Let's take a look that's really not that bad actually.

I was expecting worse wear. There's nothing to cut your finger on. We're going to move the crank back, so the whole goal of this is to not have to remove the head. So I'm gonna have to start replacing the head gaskets and do all that.

all we'll have to do is set the valve lash at the very end. Now we're going to come around to the other side of the engine and remove our crank. so we're just going to kind of wiggle it around the rod and voila! So right now I'm just checking the oil clearance on our crankshaft. So yeah, it should be exactly at 1.188 and then plus or minus five tenths of a thousand and this will just give us a good idea that our oil clearance is all right.

We don't have plastic age so we can't really check this side of the clearance, but you know if our cranks good, we're probably good. So now we're sliding out our piston and we just want to get it so that we can see the wrist pin and no more. We don't want the piston rings to come out or anything, so a little bit right there should be good. Okay, so we're gonna get a pick and we're gonna get under this little tab right here and boom.

Oh okay. so we got the clip out and now I'm gonna use my pinky. There we go and there is our stock. Rod A little bit of wear, but not very reliable.

Put a little oil on these surfaces just so there's no wear when we first start it up and we're going to pop this back in. So one thing you want to be careful of is to make sure you don't hit the serrated part of the rod on the crank or anything because that's kind of the mating service to make sure everything's lined up right. Ha. So here's something that really shows the difference between these two rods.

So on the stock one, you kind of have a oil flinger Dipper thing that just kind of, you know, dips in and splashes around. Now this has a scoop that has a channel that goes to the bearing. So not only do you have real bearing material that are replaceable, you also have an oil feed for that bearing rather than this one that just has a hole at the top. So the stock one just has a hole and oil seeps in.

but this one kind of forces it in and there's a Groove So that's why we like these so much. I'm going to make sure we've got a layer of oil on everything and put our crank back and once again making sure not to damage the serrated Parts on the rod that's in. We're going to line up our notches on the bearings as we'll click right into place and we're ready. We have our quarter inch 12 point bolts.

We're going to start by torquing them both down to 60 inch pounds and we're going to increase by increments of 20 up to 170 inch pounds. All right! And make sure to line these up at top dead center. So perfect! Arc Says to lap the flywheel to the crank so we're gonna do that so we just have some valve grinding Compound on there and we're just going to lap it and just kind of work it in. reinstall your Woodrow key then the flywheel.
For this flywheel, they recommend a coil gap of 30 thou. so we've got our feeler gauge here set to 30 thou. I'm gonna check it, get it snug and then tighten it. Now the last part of this engine build is going to be replacing the stock valve springs with some 22 pound valve springs so eight millimeter socket we're going to take off the valve cover and expose our valve train.

Now we're going to install a 22 pound valve springs so you put your spring on first. So we haven't done valve springs in a while and we're kind of struggling with this at first because we didn't know what we usually do. but I think we just figured out the best thing that works for us with two people. So we used a right angle pick and we put it inside the spark plug hole to hold the valves up so they can't fall into the cylinder.

Then the other person will take both thumbs and just barely kind of hold the keepers into place, leaving some wiggle room for them to fall into place. and then you just compress the valve spring, use the tips of your thumbs to move the keepers and as you all saw in video, that was our first try for the exhaust port and we got it. First try in a couple seconds. Now you get your feeler gauges back out.

You're going to set a valve lash of tooth out on the intake side and three thou on the exhaust side and what you'll need is a 14 millimeter wrench and a 10 mil ratchet to tighten up the nuts. Okay, go forward. Once you feel a little bit of resistance, that means your valve lash is set. Now we're going to fill it back up with some 10w30.

The engine upgrades are complete and now it's time to move on to the live axle assembly. Now for the moment everyone's been waiting for. we're gonna install the solid live axle, right? Give her a spin! Beauty refresh Now we'll add on our lock collar for the bearing, then our brake drum. foreign.

Also, remember to put your sprocket where your clutch is going to be I'm ready. We are in business. We got our chain on our break over here. Everything's really neatly packaged.

We got all our locking collars set and there's our tire look all right. Now that she's all done, it's time to put her down. Beauty All right, so it looks almost exactly like it did before, except now we have a live axle. Yeah, looks pretty sweet.

We got the paint to match pretty well with some rough spots, but looks good. Yeah, considering all the cutting and Welding we had to do on this thing, it still looks pretty nice and we now have the added performance of having both. Wheels getting equal power to the ground so it won't turn as well or handle as well because we don't have that one wheel peel and the one Freewheel but it'll handle much better off-road Yeah, Yeah, and that's what we're after. And on top of that, we've got some nice valve springs and Billet parts giving us reliability and more top end.
So this thing should be a little rocket. All right, All right guys, this thing is a ripper. Live axle definitely reduces the steering a little bit. You can probably hear the tires squealing a bit.

Definitely, if you're on dirt, this thing would be far better though. you wouldn't be spinning with your one wheel peel and then I mean if you have a woman peel, you still lose traction. Sometimes you can't power out of turns as well. What really impressed me the most about this car actually was the engine.

We got the Billet flywheel, the Billet rod, and those valve springs. This thing rips I mean it, it revs real high. you know it just keeps pulling. There's a whole different character to the engine.

All right, All right. So what was the top speed on those last couple runs? So before we put all those Billet parts on, it was 35 I think so. we'll go to our screen recording. Here we go.

We'll give you the live reaction: 43 on the first run, 44 on the second round, and another 44. sweet. So we went from 35 to 44. So almost a 10 mile an hour? That's a big deal for yeah.

The Go-kart 200cc is like what percent is that? you know? Pretty good. Do some math: 30 35 by 44. 79 weight 20 increase in top speed. That's pretty good.

That is really good so I'm happy with it. Foreign.

Avatar photo

By YTB

21 thoughts on “How to build a fast reliable go kart!”
  1. Avataaar/Circle Created with python_avatars Parker Swaim says:

    Now you should 5.9 swap it

  2. Avataaar/Circle Created with python_avatars lucky beggar says:

    lifan gs212e

  3. Avataaar/Circle Created with python_avatars Alvinjohnson00 says:

    Can you sell it to me

  4. Avataaar/Circle Created with python_avatars Paul Pinto says:

    Rest peacefully Buddy.

  5. Avataaar/Circle Created with python_avatars badad0166 says:

    Great crosspromotion with some stellar acting. Well done! Light a match!

  6. Avataaar/Circle Created with python_avatars Cyrus Cosmo says:

    A tip for holding valves closed. Place about two feet of 1/4" braided nylon rope inside the cylinder, then roll the piston up towards TDC till it stops. The rope inside the cylinder will hold the valves closed and not scratch up the inside of your cylinder. Leave a few inches outside the cylinder so you can remove it easily after you finish replacing valve springs. So Sorry for your loss, RIP Buddy.

  7. Avataaar/Circle Created with python_avatars Leo says:

    very underrated

  8. Avataaar/Circle Created with python_avatars GucciGinge says:

    How does my stock predator 212 with gov delete reach 47? I’m very light so I guess that’s why

  9. Avataaar/Circle Created with python_avatars Youhaverights Copshaveduties says:

    Was the stock rod Cast aluminum because it looked stock billet to me?

  10. Avataaar/Circle Created with python_avatars Youhaverights Copshaveduties says:

    Bye everyone Back to North Carolina!!!! LOL

  11. Avataaar/Circle Created with python_avatars Don Cook says:

    Watched both of your videos on this kart and really enjoyed them both. What would be really cool would be to do a video on stretching the frame. Just sayin……Keep um coming…..

  12. Avataaar/Circle Created with python_avatars Frederick Logue says:

    Sorry about Buddy. Put a real break on that cart at that speed.

  13. Avataaar/Circle Created with python_avatars Metrofarmboy says:

    Sorry for your loss guys,he was a good boy!

  14. Avataaar/Circle Created with python_avatars frederic rike says:

    Sorry for you loss, guys. Adventure buddies are always special. As a matter of fact, all of you lot were headed off to college a bit back; an update, if you would. Always awesome!

  15. Avataaar/Circle Created with python_avatars larry says:

    rip buddy

  16. Avataaar/Circle Created with python_avatars BryDuhBikeGuy says:

    It looks so good,and moves pretty well.Would you show building an exhaust support so bumpy areas don't snap the header off?Thnx.
    So sorry for the loss of Buddy. You guys gave him some great memories too.

  17. Avataaar/Circle Created with python_avatars Heat Hot says:

    please do a front brake kit next

  18. Avataaar/Circle Created with python_avatars War Hound says:

    Had to add a massive weight to my old carts front end when it had the 433cc Yamaha sled engine on it as it didn't turn worth a darn without it. And ya it was insanely fast for mph 70+.

  19. Avataaar/Circle Created with python_avatars Phillip Mountain Man says:

    Cool little cart, nice build.

  20. Avataaar/Circle Created with python_avatars ElJewpacabra says:

    Sorry about your puppy brother. They really are man’s best friend and can be so pure. Wish they could stay forever

  21. Avataaar/Circle Created with python_avatars CarsandCameras says:

    Hitchhikers are bad this time of year!

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