I Turn Pocket Bike Into Big Bike Engine 

Seeing that this is a 2 stroke, i think an expansionchamber for each cylinder would greatly improve performance and rpm limit on this pocket rocket. Awesome build 👏

Being precise enough in your work to weld together two crankcases and two crankshafts, and get away without needing boring of the crankcase for alignment is mighty impressive. Nice one!

Allen Millyard would be proud. He's the only other person I've seen saw a crankcase in half and not turn it into scrap!

Cutting and welding two crankcases and two crankshafts together is impressive in itself let alone with a little help with a lathe and press not having to bore the case, using a rod the same diameter as the crankshaft to perfectly align the crankcase’s while welding was genius

Absolutely the finest art of knowledge, to build (or rebuild) an engine. When you look at a video like this, it looks decivingly simpel to to do something like this. But dont be mislead, only a few hundreds of a millimeter wrong messurement, or a few degrees wrong on ignition and the engine would be useless. You, Sir, are a true professional.

Excellent Engineering..with some more fine tuning that little mini should turn out lethal to ride👌👍

Very nice build. Reminds me of a Yamaha YSR50 that I put together with a 200 cc CS5 engine. Cleaned up the ports and made some expansion chambers. When I was jetting the carbs and getting the gearing right it would carry my 240 pounds at 85 mph. It was stolen before I finished it.

Your skills are unmatched by 99% of small engine builders. You did in one video what would take me a year to accomplish. But you crossthreaded the shit out of that first intake bolt 😂

Very cool project, interesting build. I have a 2004 MotorHispania RX50, thing is considered a 9/10 scale crotch rocket. It has a 50cc liquid cooled engine that turns 15krpm and supposedly makes 7hp. It has 6 gears and a clutch. It won't do a wheelie easily but it does take me (250lbs) up to a max speed of 71mph, downhill, with the wind at my back. Regular riding I never usually go over 55mph

Dude. That was sick. You’re a beast and you made it look easy in the video but only a few people will fully appreciate how much work that actually was. That’s sick. A lil tuning the carbs and I bet that thing is a beast

That was badass. These are impressive little engines. 4.75hp and it fits in the palm of your hand. I think your engine deserves a gearbox of some sort and a top speed run. Im also curious how well the pull start survives, pulling over 2 cylinders

Great work as ever,definately needs a decent expansion chamber exhaust you can hear it choking as the revs build up.asides from that it looks a hoot to blast about on.

WOW !🎉 Absolutely astonishing! Hat's off to a genius.🌞

Please make a V-Twin for bicycle! You'd make the motorized bicycle community so happy!

Звучит зачетно. Но с продувкой целиндров беда 😂

Top notch engineering skills. Definately deserves a new sub!!! 👏

This guy is a genius! I love it

Love the videos! 🔥🔥🔥🔥 Would love to see a 4 cylinder 4-stroke engine to 2 stroke! Maintaining the oil on the pan and turbo 👌👌

I didn't expect the bike to sound this good!

Well, I'm blown away by this gentleman's creativity. This isn't his 1st build. I enjoy watching how things are made in other foreign countries around the world. Apparently, you dont need a state of the art work shop. The editing skills are just as sweet. Nice work 👍 👍

Awesome build!!!

Well done, I love small engines, fun to follow you and your inventions.

Great job ! Double wacker ! Trinidad & Tobago. West Indies.

Awesome craftsmanship. I enjoyed watching this build.

This dude so talented, hope you have a high paying job with all these skills u own

Class. It's just the fine tuning and final tiny adjustments and you'll have amazing engines.

Awesome work!

4 min in and you had me thinking "Is he making a parra twin?" love it!

Gives new meaning to "Built not bought"!💪

Single cylinder 2stroke sounds nice, but you made it 2 cylinder which sounds more amazing.

Bro , you've given this generation and generations before it who've never thought about doing something like what you did . It's amazing what you just did and it pays to have all the necessary equipment to do what you did . Thank you it's an epic video 💯

Beautiful work!

Insane production quality

The Asian Allan Millyard...Bravo man!!!!!!!!!!!!

This is awesome and excellent machining! I know it’s two stroke but it seems to be very Smokey

Мы тоже с сыном собираем мотоциклы автомобили)))) респект отцу и сыну молотцы

In addition to the shock that the creative work brings to me, one detail that touches me is that he darkened the strong light during welding to make it less dazzling. This is actually very important. In some other people's videos, These bright lights make the audience very uncomfortable and quite dazzling

This man is talented and clever.

Sounds so good!!!

2 silnder....motor kecil....mantaaapp..mas brooo..

you're really great, keep up the good work!

It's one thing to own tools,but knowing what to do with them takes skill.Awesome upgrade..👍

Master craftsman, amazing skills.

I have an 8 and 9 year old nephew that would LOVE to take a spin on this bike! Well done!

Galing mo naman pre, salute sayo!

Oh man…. Great job!!! 🇧🇷

So sick!!! I'd love to see you make an Inline-4 with four of those/some 50cc bike engines sewn together. Then run it longitudinally with a driveshaft to a diff/transfer case in the back. Maybe make a pocket quad/mini 4-wheeler that way. That pokemon (pocket monster) sounds awesome as well!

That’s so nice!!! I’d definitely buy that

Yep this is an awesome build. Keep up the good work love this video..

Bro just went from 600rr to a 1000rr upgrade kit for kids!! Solid! 🎉

Damn this guy is a legend

solid na solid mas maganda kapag twin tune pipe para 2 stroke talaga tunog. btw do what you love solid ng gawa mo. more of these content please.

Nice job, brother. And love the scheme of the repsol !!

This is by far the best build video out there hands down..! I am sure this project was nowhere near as simple as your precise editing has allowed us all to enjoy your talented skills and abilities to think outside the box and create such an idea so masterfully.. your talents i am guessing really have no limits and i am now curiously wondering what you might create next.. good luck and good blessings to you and those who support you.

I do not believe I have seen anyone attempt to fabricate (and design/engineer?) an engine block by hand. Astounding.

I love how the shot at 16:40 ish makes the bike look almost twice its normal size.

That is definitely great engineering.... It's definitely cool to see you got a primeweld tig225x to samtec welder I run myself I got the water cooler and a water cooled torch to trying to tackle the same projects you're doing....😮😮😮 Keep up the great videos and the great work looking forward to your next video.

Damn, crazy man 😁

Ja wykonałem dla siebie trochę większą ramę, z tyłu amortyzator i przedni widelec ze sprężynami. Założyłem gaźnik od Simsona.Super zabawa.

I am truly impressed by your skill with machine tools there are some home made tools that worked perfectly a true mad scientist

Excellent! It is awesome!

Excellent job 😎

Very cool twin cylinder mini bike engine build 😎👍👍

Wow great job sounds very good

ang galing mo pare!!

That’s awesome dude 😍😍

Sounds 👌 Twin spannies next 👍 Clever guy 👏👏

Always a nice ride through the Franken-mechanical realm you exist in. Cheers

Brilliant work mate 👍👍👍

Sounds great. Cool video

Ciao, tu sei il meglio!!. Se il mondo rimanesse senza corrente, solo VOI SOPRAVVIVRESTE. In Italia si dice: Che la fame, aguzza l'ingegno

Your machining skills are very impressive, I don't know if I could be as precise when flycutting a surface that flat, only taking off .005" or the metric equivalent, whatever system you're used to. The union of the two crankshafts was also amazing, though I might have used a more solid joining than press fitting them. Incredible!!

Awesome build 👍👍

You are a good hand master and you have the masines to do or fix anything and all the tools!!

Le Dan would most likely approve. Nice work.

Now! Put a regular CVT on that. so it can show its full power! 🎉😊 i love your works! i am always watching your video! From Philippines! 🫰😁 P.S. I also want to see a four cylinder pocket bike! i would love it! 🤩😊

Awesome skills!

Parabéns , que incrível projetos assim são muito bons , ótimo trabalho eu gostei demais , ficou massa !

Cool project. Amazed it ran. Drastically increases the torque of those cag engines but unless you change the gearing or increase the rpms you won't gain any speed compared to stock. An easier project is to fit a bzm to it. You would triple the power compared to the motor that you just created.

👏 Excellent engineering.. you are very good at 2 stroke engines, I think it is very powerful. With some more sophisticated adjustments, this tiny mini car would be dangerous to drive👌👍

Great skills, love it

200cc 2 stroke scooter engine in a pocket rocket 🚀

Great built only thing is changing to 2 full expansion pipes will really help the engine breath at higher Rpm.👍

this is impressive. A real work of art. make a 4 cylinder one next vid;)

WOW, you always build something Awesome. Great work bro.👌👍🤘🔥🔥🔥🔥🔥👌

Iba ang galing ng pinoy

Casually welding aluminium without any breathing gear or covering up your skin is a great way to shorten your life, lung cancer and skin cancer is a real killer. I used to tack stuff all the time without putting gloves on to save time, or i wouldnt connect my air line to my mask because the job i was doing would only take 30 seconds. But then i see the older guys who are in their 50s and 60s dieing from lung cancer and skin cancer, people who i know personally, so now i make sure i do it every time, no matter how small the job is. Even if it's not aluminium, cast iron or regular steel is still bad, especially if the metal has had oil on it at some point, the smoke will cause cancer. I also notice you handle a lot of solvents without using gloves which is another sure fire way to get all manner of different cancers and central nervous system damage, especially some of those older part cleaners that im almost certain aren't yet banned in the country you are in. Tetrachloroethylene is one of the worst chemicals you can put your hands into, and what's worse is that your body cannot get rid of it once it's inside of you. You really should consider wearing some protection, gloves are not expensive and if you can't get nice mask with an airline and air filter pack at the very least weld outside with a fan set just above your arc. And for the love of god check your solvents especially for Tetrachloroethylene, there are lots of alternatives out there which aren't quite as dangerous. Or you could just wear gloves!! I love your videos but someone has to tell you this, stay safe.

Galing ng Hacksaw! Congrats bro malapit kana mag 1M!!!!

Your "homemade engine build" playlist is hillarious. Engines, engines, engines, ANDREW TATE, some healthcare video, engines, engines

Increadible man

Muito top essas modificações que você faz

NICE!!! might I add..Put sum air in the back tire. youll notice a huge difference immediately

Nice build

Really really impressive and really really cool 🏁🏍️🤩👍

Man you should produce them engines for sale for real I would buy one of the rip😅😊❤

I too believe two pipes would give better prestanda! Expansion chamber on each also seems great!

Ok ! You got MAD Machining Skills !! 💀🏴‍☠️🏴‍☠️🏴‍☠️🏴‍☠️ Rrrrrrrrrrr--R !! R !

It would be so cool if you could do a 4 cylinder boxer motor like goldwing

Superb work :D! I think the weakest link is the clutch not being able to put down the incredible power now, haha ;D!

Sounds awesome