I combine 2 regular 50cc engines into 1 100cc U engine

[@Enjoymentboy]

This is just awesome. The 270° idle sounded amazing. Fantastic work!!! I'd LOVE to see 8 of the 50cc put together to make a 400cc V8.

[@LorenzoVianello-hz7if]

Il primo motore ha il tendicatena della distribuzzione a destra il secondo girando al contrario dovrebbe averlo a sinistra e stato bravo perché il secondo motore gira al contrario quindi ha dovuto pensare al camme e all'accensione . Non è stato bravo alle lavorazioni alle macchine utensili ma a come far andare il secondo motore con una rotazzione contraria . Se avesse fatto girare i 2 motori allo stesso senso con una catena oppure con un rinvio sarebbe stato più semplice . Quindi complimenti al meccanico

[@TE_53349]

id love to see little honda gx25 - 25cc engines put into an inline 4 configuration for an inline 4 100cc

[@brostenen]

Do it with puch 2 strokes instead. Might be more easy, as you do not have valves. I suggest puch, yamaha or honda cylinders.

[@EbonyPope]

Since It's air cooled and the second cylinder sits behind the first one it will probably suffer overheating though. Not enough air-flow for the second cylinder I fear.

[@paradiselost9946]

@@EbonyPope doesnt have to be made from air cooled honda type engines... yes. thats the issue they do have. rear cylinder gets toasty. water cooling can fix that. comeon, the point of this channel is he straps existing engines together and they run. they arent intended for production...

[@daddymarkram]

Crazy that one person knows how to do all that. Well done. 270 degrees had the best sound in my opinion. Thanks for the video. 🙂

[@РомаЛиходей]

270--Ямаха ТДМ❤

[@РомаЛиходей]

И 90, тое Маха ТДМ❤

[@ChayMiddleton]

Why do this ? Because he can

[@ЮраСидоришин]

👍👍👍

[@TheRavnKnight]

still amazes me how his brain wrapped around this and made everything work ... cool

[@jerekalevijarvinen1389]

To be fair two strokes are 65% dark magic, 20% resonance and 5% of autism. Once you figure out that you never actually learned anything about the inner workings of them besides the name of the parts and surrender to impulse, you'll be able to build anything 😂

[@Breakingbylaws]

​@@jerekalevijarvinen1389still trying to find the two stroke in the video that ur talking about

[@rayota260]

@@jerekalevijarvinen1389 this is not a 2 stroke dude, clearly you have not learned even the names and parts

[@BlackandWhitecustoms]

It's really easy just take about 7 grams of mushrooms in a machine shop and when you come back to reality something amazing will have been built 😂

[@douglasgreen437]

​@@jerekalevijarvinen1389 It's clearly a 4 stroke...

[@KaizersPOV]

this dude single-handedly beat the big manufacturer of motorcycle war on Firing order by building an adjustable firing order paralel twinhahaha

[@icanbuildit4977]

What makes it adjustable

[@4sstylz]

@@icanbuildit4977 A lot of things, but if you watch the video there is an adjustable distribution system.

[@4sstylz]

Rotax made the bmw f800 parallel twin adjustable. It figure a third rod for vibration dampening and is set up at 360° on the f800 line but 315° on the Husqvarna nuda 900 twin. Also the two bike really works differently. The BMW have multi-plexing, the nuda not.

[@Dymitr_Nawrocki]

@@4sstylz f800 is not adjustable like engine in the video because you need replace crank and camshaft to change it from 360° to 315°. If you change those parts you can modify every pallalel twin to any offset between firing. Engine in the video is adjustable because you can change angle between cylinders without any additional parts, its just unscrewing some parts and adjusting them to work differently.

[@4sstylz]

@@Dymitr_Nawrocki You're right. But the number of engine with more than 1 firing order is prety rare.

[@infographistehistorichaiti5929]

It would have been a great and fun project to do. But this guy demonstrated that it would require so many high precision tools and so much knowledge to do. I can only sit here and admire.

[@karlkuttup]

hes been shown how to use the machines from about 12yrs old maybe younger ,i used same machines and a handfull of other hand set old pre 1940s stuff no cad or cnc ,id have no clue how to set one up give me a 1888 lathe and ill turn anything

[@johntilson2535]

This is the first southeast Asian channel I've seen that didn't involve pulling the item to be restored out of a muddy swamp, only to wash it and do some minor cosmetic work to pronounce it 'restored'. This man has the machining skills and ability to actually DO something that isn't clickbait. Why those 'other channels' have millions of subscribers and this man only half a million doesn't make sense but...what in life today actually does??🤣

[@ShaunChurchill-S.A]

Absolutely agreed, his engineering skills are mind boggling. He has a good set of tools & machinery at though, to work all that out & manufacture something no one else does is extraordinary. Bravo I say

[@VigKing]

he is in Vietnam and so am I, from my perspective and that of most Vietnamese people, youtube ledan is number 1 on the topic of mechanics

[@paradiselost9946]

i see it as he is a mechanic, maybe made a few oddballs in his spare time of an evening. same deal as millyard. he was doing it well before YT... a hobby... someones like... "hey, maybe i film it next time?" no real intention of going big, just having fun doing what he does... whereas the fake "restoration" video is rehearsed and staged from every step of the way. a team of people, every shot carefully thought out... then the fake accounts clicking "like and subscribe"... how many accounts can a bot make in a day, how many upvotes and views? once you hit that magic number, go monetary, flood the recommendations list with smoothly edited rubbish content... playing the algorithm... my god YT is a strange place when you sign out of everything and erase cookies, etc... its pretty bad when you dont! ever tried filming yourself doing anything? i have lots of little things i _could_ document and post... but it never works out that way. i was modifying a fireplace i made yesterday... hmmm... fire the camera up and document? so, first step... mark this line on a pipe with this here "liquid paper" pen... it doesnt work. fine. sidetrack, document getting a tin of thinners, clearing the tip, back to marking line... battery goes flat. sigh. toss camera aside, make fireplace. done. undocumented but done. quite warm :)

[@Sigma33sailor]

Don’t forget the mandatory paint job to make ik look like new.

[@chongshenchang9367]

Yes, Exactly. He is a genuine content creator. Pulling things to be restored out of the Muddy swamp really got me.. 😁😁😁 You are right my friend.

[@hectorvelandia3782]

My respects to this guy. He should have his own manufacturing business.

[@ash.ab.5575]

yes but with H2

[@ratsun5603]

@@ash.ab.5575 h2.. seriously?

[@kcbeerslinger]

Wow !! this was astounding. Most people couldn't do this with a pro machine shop and look what he did. I'm impressed.

[@ShaunChurchill-S.A]

Like I Said...👍

[@zfekete74]

Mind blowing how you designed to the angle to be adjustable. Genius work. Thank you. Enjoyed every moment of the work. And the sound...

[@richj120952]

So much precision work for making only a 100cc engine. At best it would have about 9 HP (6.7 KW). That being said, the skill and level of planning to do it is truly amazing to watch.

[@ShaifulAdilin-j6q]

This is not 50 cc each..look at old piston is seams 90-100 cc 100cc*2 this modification is 200cc

[@Chainsaw2373]

He has major skills and is a brilliant machinist and engineer. My hat is off to him. Excellent work. 👍🏻

[@SuperMurrayb]

Thank you for finally making the Honda 100 cc twin that should have been made after the Yamaha Twinjet 100 came out back in '66. Everyone was expecting a twin 100 but Honda brought out a single instead. Now we know what could have been. Thanks again.

[@bgd73]

great examples of splitting fires for the same volume.. and showing a derivative that is balanced and unequal. More than ingenuity, this video has a lesson.

[@walterhaumaier9137]

This dude is a genius I wonder how he figures out all the things that would make something like this work

[@oires]

The 360 works better because you have a combined intake, in this configuration there is no overlap between the two cylinders and the carburetor is able to deliver fuel and air better.

[@martin-vv9lf]

and there's perfect engine balance with contra rotating crankshafts at 360degrees i think. that should improve performance.

[@Drosba]

@@martin-vv9lf That would be the 180º, with 360º they move up at the same time and then down at the same time.

[@helixworld]

@@Drosba The contra-rotating crankshafts can have perfect primary balance if the counter weights are increased from the single cylinder design.

[@ferrumignis]

@@Drosba With 180 degree timing the out of balance forces with the pistons halfway down the bore would add, increasing vibration. 360 degree could give perfect primary balance if the crankshaft counterweights are adjusted, as helixworld says.

[@Kordziel]

360 sounds good like an English twin,

[@markjones1672]

Sunbeam S8? Best build yet? Genius....on a shoestring. Admiration!

[@hondaryder3779]

No, on flipflops.😏

[@lescrooge]

The 270 degree sounds really cool. great job

[@КостяНежеловский]

It turned out very cool. And if you do it with two exhausts, it will be absolutely gorgeous.

[@mojtabajavadi-d2x]

The most beautiful and accurate timing engine I have ever seen Hearing the sound of the engine, the young master performed the accurate timing from the lower gears One top dead center piston and two bottom dead center pistons I also know turning and some mechanics and welding, but our young master taught me a good lesson today Master, may you always be successful in your work

[@46danz]

Blows me away of how smart some folks are, brilliant. Thoroughly enjoyed.

[@TommyTucker0]

I would love to know half of everything you have forgotten, that would make me a fantastic mechanic, you are an absolute legend !!!!

[@Lurch-Bot]

Some people just have excellent spatial reasoning skills and don't need any fancy CNC machines. I've ground a rod for an 0.010 over bearing by hand with a file and crocus cloth and the car is still going strong 14 years later. I'm definitely impressed by LeDan's work but it is also something I could do myself if I were determined to do so. I've been toying with the idea of making a pushrod boxer twin using aircraft engine cylinders. Would probably use Lycoming O-235 parts for a displacement of 117.5 ci, along with a blower, and put it in a drag bike to go up against Harleys.

[@pjtfinland1794]

Notice how enormously vibration free that engine is, as it has two counter rotating crankshafts!

[@panosgamithis8868]

I never get sick of watching this craftsman at work.... 👍🏻👍🏻

[@loddude5706]

This guy's thinking & skill render him worthy of a Millyardian cup-cake . . . maybe even two! : )

[@Captsewer]

Le Dan, tell us more about you, your background and your shop. I enjoy your work. David from the USA

[@mcgo3595]

Yes! I’d love to see a tour of the shop. Tools.. Lathe.. Bikes.. etc.. Will from Alabama, USA.

[@eemtech1606]

Wonderful work! You sliced everything as you were slicing bread. You joined everything as you were glueing papers.

[@FransvandenBergeMuziekschuur]

Absolute genius. Greetings from the Netherlands.

[@julieanddavidmyers6641]

I love the flexibility of the engine design to switch from 180 to 270 and 360. degree

[@djo_man]

This has got to be your best-sounding creation yet.

[@ChrisHirter]

I was surprised he didn't (appear to) replace the main bearings, although he was very thorough about everything else as far as I can see. The engine sounds perfectly in tune both runs. Gifted man.

[@mrantek7373]

Yeah. I was wondering why not to do so if he already been there

[@davesmith8101]

You are a master engineer and no mistake, that was a genius level project and done with real skill and ingenuity. Well done!

[@dudycemed790]

Now, let's make it 2 stroke. 👏👏👏

[@josephwu3136]

I keep asking for more 2 stroke content. But not sure if he can see these comments

[@dudycemed790]

@@josephwu3136 Me too, still waiting for 2 stroke engine mods.

[@canerandagio104]

A word of advice, now build a custom Harley Davidson style frame, and you'll have the coolest bike in all of Asia.

[@vitalygood4122]

Это шикарно🎉 мастер своего дела! Ждем от тебя V8 из мопедных движков)

[@ianclampin103]

Clever and extremely skilled guy, nice job 👍

[@erytingcris]

This was absolutely insane! I don't have the attention span usually to watch something all the way thru but this I did.

[@stubby7934]

The thought and effort needed to bring this together is amazing...

[@bliglum]

Sounds happiest at 270. Such a cool custom engine. Very nice!

[@thebestneverrest4977]

Hàn nhôm nà chắc ghê ta, phay ra không có bọt bên trong luôn. Mà tây nó khen quá chừng, nhiều chủ shop có thiết bị chuyên nghiệp cũng không chắc làm được, tự làm tools đổi độ nổ, dân độ xe VN đỉnh quá.

[@chrigu70]

Not gonna lie! This was an impressive work carried out. Im truely impressed!

[@doraexplora9046]

That is a work of art. Sounds fantastic as well. Crude engineering. But this guy has some skills! I thought his Boxer engine was interesting but this a definite improvement.

[@truSN8P]

Great build! This really illustrates the different firing angels and their sound - awesome!!!

[@billsharpe459]

Absolutely amazing engineering skills, well thought out, sounds fantastic!

[@kasimishaq]

The amount of joy and intriuge these kind of videos make for me is unreal. I love the mechanical engineering world so much

[@2NatoStandard]

A true engineer. One that isn't phased by engine block cracks, but still, a true engineer 👍

[@JS-kd7jf]

That's both interesting and satisfying to watch!! The man is a GENIUS!!

[@SavetheSheep]

It sounds amazing. So many skills. Thank you for sharing !

[@WorivpuqloDMogh]

Damn a U engine moped never thought this could be done. You are awesome dude

[@NoelMintern]

Engine sounds great,..more like a larger engine. No shortage of" get up and go".Real talent and craftsmanship;...

[@Conzales]

The sound is beautiful. Really stable and quiet low rumble. I bet is has lots of low rpm torque as a light bike. 👌

[@SushantSavaikar-n2c]

You are a genius 👏 🙌..ask your mom what she had when you were in her womb ! 😊.excellent job. Mr. Soichiro Honda would have taken you in his R&D if this was done when he was alive. 25 years before.

[@SamusMaximusSMXD]

THIS IS UNREAL, id love to be able to learn from this guy

[@jean-baptistelabruyere3926]

Grand respect pour ton ingéniosité, et ta détermination pour aller au bout du projet. J'adore l'idée du réglage possible du calage moteur 180, 270 et 360 💪👍😎

[@nickrolfe367]

A relative of mine did this with two Kawasaki KH250 engines, was a beast of a machine

[@sidewinder1639]

This is incredible! Amazing somebody can make this

[@NoelCraigNI]

Very impressive, it even sounds beautiful. Well done!

[@billfranks6805]

Wow your a brilliant engineer that's amazing you'll be building the future soon I expect to see a fantastic future for you Bill

[@michaelb.42112]

I absolutely LOVE this new Honda you made. Its beautiful, practical, and one of a kind. You should be world famous for making custom bikes. Id love to own one of your bikes. Hello from San Francisco.

[@newandoldtech5634]

This is the guy that can do what I have been thinking of for 25 years. A hydraulic pump that emulate the 3 phase characteristics of electrical power. If there are three pistons at 120 degree in between, it would theoretically be an even flow and pressure of oil. The same way three phase electricity works.

[@ThomasWay-t8r]

Mechanical engineering genius! Absolutely Awesome 🤔

[@om-rw1ux]

Re Dan, please please come to Japan Your talent are all people's dream. All these work must be shown in Motorcycle show

[@kopterstarsyder5908]

Fantastic work. I hope the cooling is enough for both cylinders

[@eonreeves4324]

this is the coolest thing i have seen all week

[@mhuppertz]

Impressive engineering! You are a Boss!

[@ReverendBow]

Incredible Build. Very impressive!

[@74applegreen]

Craziest home engineer ever!

[@matthewrichardson828]

I would love to have this bike. What a work of art.

[@infinity528hz5]

True piece of Art, so beautiful builds you come up with

[@karlmoffat6165]

Holy incredible, my only concern is cooling, fins are all the wrong way and I don't think there's any left on the back cylinder!!! LoL ❤❤❤❤

[@funy0n583]

I wonder how long he’s been working on these Honda engines for him to even come up with this idea and actually successfully execute it what a legend

[@patricedavid8649]

Bravo et respect mr le dan, excellent travail effectué dans cette configuration. Joli taf. Le Boss quoi ❤

[@csorrows]

I much prefer the sound of the 270 degrees out. Once again, awesome job!

[@greyhorse1211]

Simple. A work of art. Well done!

[@warp65]

This has to be one of the most interesting videos on yt.

[@stampamaxdf4341]

Incredible the sound of this engine!!!

[@johnpipolo8366]

Impressive Le Dan. Surely a motorcycle manufacturer has to offer you a spot in there engineering R & D dept.

[@RaulDiFondi]

Nice Job!! Love the sound it makes.

[@SW-mk6cz]

Wow… that sounds obviously much easier than it is 😮❤ great job. Interested in the durability of all the welding joints 🤷🏻‍♂️

[@ГеннадийДолгов-н3и]

охлаждение второго цилиндра покинуло чат. никогда не размещайте один цилиндр за другим на двигателе с воздушным охлаждением

[@david929190]

I liked the 270 degree firing order sound. Be cool to hear it with the Harley firing offset.

[@ungerspretoria8280]

A new engine is born...amazing, Bravo!

[@KarelRode]

I believe this should be called a Two-50!

[@boybuyo83]

100 cc upgraded with style. What a skill

[@SamusMaximusSMXD]

“How will you make the engines mount together and such ?” Le Dan : “yes.”

[@StanleyKubick1]

this is literal magic! sounds so good, too!

[@barrysnelson4404]

Good work and I loved the surface finish from the simple fly cutting - but I think it will overheat and that rear cylinder will seize..

[@Broadshore]

It would be interesting to see you a 4 Cylinder version of this. Like the old Sunbeam and the Indian motorcycles of the days.

[@aprinaldi3610]

Gather people in the world, they can't beat you yet, bro.

[@IrenESorius]

You are a true mechanical,, ✨🌟✨ Could you fit one more,, 😆. I looooove the pull from 3 cylinder, 120 degree. 🥰 Nice to see that you have invested in a sandblaster box,, 👍‍‍👍‍‍. Fresh blasted aluminium with clearcoat on top looks very nice. Thank you for sharing,, 💖🙏💖

[@HosenMatzZ]

Dude you're some nha que powerhouse! Big love to Vietnam.

[@canastasiou68]

Awesome bro,im always impressed by your builds. Cheers from Australia

[@stevesmart944]

Such a talent !!

[@inhocsigno9151]

Amazing machining work, great job!

[@marcw2604]

This guy kind of reminds me of Allen Millyard Great work!

[@FranZap86]

This video is the perfect example of how different crank degrees in parallel twins sounds: 180° crank 23:18 270° crank 24:50 360° crank 26:22

[@franks4973]

Obviously very talented mechanic and machinist but I wish there were subtitles for us regular folks.

[@StanleyKubick1]

subs for what? not a word was spoken

[@markharris1329]

Amazing skills, what frame is this? Been searching everywhere!

[@BRI33NOR]

Brilliant engineering.

[@stevekovacs6250]

Amazing conversion.

[@wgk4845]

wow wow wow. Would love to see u make two 50cc into a 100cc U engine in flat (boxer) configuration! Great job man!