BLOWN 125cc TURBO Motor TEARDOWN Go Kart | Part 9

We tear down our turbo 125cc go kart motor to see what went wrong when it failed on the dyno.

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[shaneanningsx]

Wonder if it was valve floating and hit piston those stock springs are pretty shit

[jeveuxresteranonymemerci]

hi ! To solve your valve problem, you might have to ubgrade the valves springs. love your videos, continu like that !

[SkyfighterZX]

Didn't the guy at the dyno say "you dropped a valve" ? Dude nailed it xD

[matthewf]

Upgrade the valve springs to something 3 to 4 times as strong(valves too if you can). I bet the valves were floating at high rpm and the piston hit the intake valve.

At least these engines are cheap and very easy to work on. Good luck with the next iteration!

[lineoflads]

I’ve really enjoyed this series keep it up!

[seanwilson]

There's loads of car youtubers doing similar stuff to you but the go kart stuff is pretty unique bud, think you've found your niche
Love the build ❤

[corbyweeto]

I doubt running lean would do that, would burn a hole in the piston first. My guess is valve float, I'd get upgraded valves and springs on the next build. Also should get a 160cc. Same dimensions and mounting points I'm pretty sure

[RBTuned]

Did you adjust the valve clearance? This must be done with a new engine and after 200 km of running-in

[markcarasco]

You can bought a new head for that motor, you can search for big valve head set, and I suggest to use a racing valve spring for that since that motor was revving high. If you bought a big valve head you can port the inside of intake and exhaust for much better performance.

[VipersCave]

Mate! That spark plug just made my day 🤣 Another great video brother 👍

[southernchaos]

Can't wait to see the BBK install and see it run after!!

[justinify]

Any chance the that 280zx is available for purchase?

[nicolasp]

next step is going to be wild! I hope one day i will do something similar! Try to buy a cams for turbo, stongers valves prings to rev more and dont me worried to happen this again! And work the intake to allow more air

[Vovoracing]

Buy beefier valve springs i think they are weak or the valve lash was super off

[chlebiarz]

Pls instal 150cc cylinder kit on this little monster

[EmileDuToit-jw]

Hi, what size tires are you running on the kart?

[awol]

early I love these go kart videos makes me want to build one

[Mark__IZHK]

if you don't want problems, just get one of those takegawa superhead lol.Btw, thr problem might be from lack of oil, and also the valve clearance.I have tge same engine and i noticed that this one doesn't rev as much as it should.

[JareebsGarage]

I'd check valve spring to see if it valve ans dropped thr valve, also if you wana add gaskets to lower compression do it on the base gasket side (cylinder to crankcase side) lastly I'm building a turbo 2 stroke triple snowmobile if your interested check it out 😊!!

[Mamay-zbvb]

You can buy a big valve head and 60mm cylinder block for that engine, but you need to machined or port the crack case to fit the block. Then manually port the intake manifold to match the flow needed for the big valve head. Add turbulence when you port the intake to have maximum air and gas mixture.