You are one of the most amazing garage engineers I have ever seen. You have the sort of talent that is rare and so valuable. Keep it up, my friend. I'm also impressed with how well the rings on those pistons worked. Not much smoke from that engine.
The oil routing and using an old pump as a tensioner was smart. I was expecting a total loss system at first. Dunno how long plastic tubes will hold up with the heat though. Looks like #1 is more oil starved than #2. Though it appears both are getting a decent amount to the heads.
This guy needs to be designing for some major Manufacture. Yea, Engines are just air pumps and this guy is using pumps to make engines. Still incredible
What people don't realize is he would probably hate working for a company, he can do whatever he wants and isn't limited whatsoever working for himself. Life isn't always about money and working for someone else. I'd rather do something I enjoy and barely make it then work for a blood sucking corporation any day of the week!
People have been train to believe "making it" in life is working for some huge company, my idea of "making it" is exactly what this man is doing right here!
Honestly an engine is a big air compressor but I love how u make the compressor work as an engine and how u make one cylinder back into the compressor keep up the good work
This is the COOLEST F’ING BUILD EVER!!!! We need more people doing stuff like this instead of wasting everything and filling the Earth up with more junk. Way to upcycle these parts. Your ingenuity and ability to adapt parts from odds and ends is on a genius level! This guy should be filthy rich right now and teaching the way he thinks to millions more!!! Get this guy more views and maybe some sponsorships!!!!!!!!!!
This is what I've always wanted to see that I never could do....convert a lawnmower engine or something to a diesel engine or make a diesel engine from scratch or convert a compressor to diesel please do this it would be awesome
I want to suggest you something: try to use the hybrid setup (1 cylinder as compressor and 1 cylinder as engine) with the compressor cylinder as a “super charger”. Connect the compressor outtake in the engine intake. Idk if it could work, but if it does, it would be amazing! Btw, congrats for the excellent videos, I really love your channel!
In theory you can produce up to 1atm/~14.7psi of boost(Considering we don't have any leak and no extra space between the pump/engine for the air to expend) since the compressor compress air once per rotation while the engine intakes once every 2 rotations. But a good portion if not more of the power gained will be consumed in the process due to the force needed to compress air, leaks and inefficiencies.
That would look PERFECT with a propeller and mounted on the back of a small, one-man air boat. Excellent work. I am completely impressed with your skills.
Excellent job ! The work here warrants thinking on a different level from the average engineer ! It was a pleasure seeing the execution of your thoughts. Well done ! Trinidad & Tobago. West Indies.
Imagine putting this in a motorcycle and rolling up to a show like "Yeah it's my handmade Hemi V-Twin made from a compressor block..." Biggest flex award instantly
yep. in fact i may do something like that. i live in lubbock texas. any idea if it is possible to find a good sized and shape v twin air compressor at a junkyard?
I thought I was the only person that kept EVERYTHING from every single thing I've taken apart. I need to show my wife this. There is a reason why we keep everything LOL
Congrats! You were a very lucky guy to find all these parts in your scrap metal bin, as there are two identical cylinder heads that also fitted to the compressor cylinders, the timing chains and cogs etc. Nice work, btw!
@@shadowknouse6020 the dude mirrored a cylinder head by cutting and welding, certainly he could add an output shaft to this but that wasn't the point, it was simply a fun project
I clicked on this thinking I'll just skip through it as compressor looked like the old junk I see at work, that was not happening. I cant remember when is the last time I watched a half hour youtube video till the end. This engine deserves a chassis, I suggest dune buggy or similar, this is some mad max stuff.
stephen preston I’d be very surprised if it made more than like 5hp, to be honest. Also I’m not sure about whether the compressor cylinders could even handle some load
I own a business that focuses on recycling. This is amazing,I love it. Basically TRASH TO TREASURE.. it doesn't get any better. Keep it up. Looking forward to your next video.
This is impressive. I thorght about this Manny times, also with a radial AC compressor from a car, but sorting out spark allways had my stumped! Well done. Your a very talented man.
@@georgebamber6871 Welllll..not quite; The stroke of that thing is probably less than my cars engine, which would reduce the size even lower than 2.0L. My guess is with 8 cylinders it would be between 2.0L and 1.5L. You'd probably need forced induction to get any practical power out of using 4 of those things.
Just found your channel and i must say i am really loving what you do! Giving me alot of ideas and inspiration. And you make the perfect example of making great use of whatever you have lying around! Cant wait to see more! 😁
that and having a lathe,mill,milling machine,very high end tig welder,being highly skilled in every trade and very advanced understanding of every element of cam timing,stoke and internal combustion engines helps.
AAaaww that's the cutest spark plug i've seen in my life! Gonna buy a tiny engine like that and put it on my desk at work as an cooling ven for those warm days 😆
Congratulations, always very creative. Now, the idea of using one side as an engine and the other side as a compressor, was really great. Should have focused on that idea, the people would have loved that idea. You take a long time to post new videos, but they are excellent. Leandro Wagner.
As he was building it i was thinking to myself "I wonder if that could work". Then he does it and it does work! I think its a brilliant idea for a portable compressor for airing up tires in the field or something. So much lighter than the motor with separate belt driven compressor units. This would just be one small motor and maybe a small storage tank. Easy to carry around if you had to.
@@keithyinger3326 It's not going to last. The bottom end isn't designed to have the load of combustion on it, as seen by the fact it only has 1 main bearing. Also it would be slow. You'd be better off going to work and making the money to buy a cheap compressor. Or just put a motor on the compressor that got turned into a motor...
The drawings, gestures, text overlay, little editing tricks, and so on that you use to show what you're doing is very slick, hahah. It works out nicely and makes for a very interesting and addictive video style!
Daniel Di Gregorio 2strokes just feel weird like they have no power when ur taking off they’re 100x less durable they sound lice a can being dragged on the road they require more maintenance and they’re just nit worth the money
@@ilyas.o "no power" "100x less durable" "require more maintenance" "not worth the money" you dont know ANYTHING about engines. 2 strokes (especially smaller CCs make alot more power if tuned properly than 4 strokes, they can be as durable as 4 strokes if you maintain it properly. Last of all many of 2 strokes are cheaper than 4 strokes.
This is amazing talent" I'm very impressed " I've thought about these things " but he's actually doing it" and doing it very well ". Fun to watch how it's done". I love the v twin bike too" Good job" .
Won't work. Your enthusiasm is infectious, though! :-) LLS. Can you prove me wrong? Oh, please do!! Pixisto! I think he is going to do it!! It will be a "Six Stroke Twin". The first in the world.
@@extractorfan2143 Well you can put a 2 stroke 1 cyl and then make the 4 stroke 1 cyl share the crank as long as there is two seperate engine blocks and then have something like a crank tunnel between them.
Hmmm... you could leave the ignition out of the two-stroke and instead have it pump air into the four-stroke side. Twice the compression strokes, so it should pressurize the intake - kinda like a turbo or supercharger. You could probably feed it through a small intercooler first.
Fitting, machining and mechanical aptitude of this guy is high level. Awesome to watch
Just amazing all in one skills. Who dares cutting, relocating and re-welding the cam pushers. pushers.
The work of a Genius.
You are one of the most amazing garage engineers I have ever seen. You have the sort of talent that is rare and so valuable. Keep it up, my friend. I'm also impressed with how well the rings on those pistons worked. Not much smoke from that engine.
This guy is the type of friend you would wish you had in a post apocalyptic world :-))
Just thinking the same thing
bu
ok
Talk about feelings of inadequacy when your science fair project is next to his...
Hell i wish he was my friend now!
These videos never fail to impress. The level of skill you possess is truly incredible.
The oil routing and using an old pump as a tensioner was smart. I was expecting a total loss system at first. Dunno how long plastic tubes will hold up with the heat though. Looks like #1 is more oil starved than #2. Though it appears both are getting a decent amount to the heads.
This guy needs to be designing for some major Manufacture.
Yea, Engines are just air pumps and this guy is using pumps to make engines. Still incredible
He is really good. This is "Child's Play" for him.
Oh, didn't you know? He's Harley Davidson's chief engine designer.
What people don't realize is he would probably hate working for a company, he can do whatever he wants and isn't limited whatsoever working for himself. Life isn't always about money and working for someone else. I'd rather do something I enjoy and barely make it then work for a blood sucking corporation any day of the week!
People have been train to believe "making it" in life is working for some huge company, my idea of "making it" is exactly what this man is doing right here!
True
Ini baru waktu sekolah ga nembak dan ga bolos terbukti kepake ilmunya. Bisa bikin mesin mantap
Incredible, can't believe how talented this guy is.
levelflightvideo I know he is a beast! Even the most talented people I know would never attempt what he does
He is not talented he is Indian
I know right?! This guy has got one hell of a brain.
levelflightvideo how is this talent it’s common knowledge I could do this with my eye closed if I was as board as this guy
levelflightvideo guys gonna be the mechanic in every zombie game to turn the washing machine into a running driving zombie slicer
Between you and Jeremy Fielding, the world has become a richer place. Thank you for sharing your craftings with us!
Honestly an engine is a big air compressor but I love how u make the compressor work as an engine and how u make one cylinder back into the compressor keep up the good work
You have one helluva stock room. Crazy how many of those parts fit so well together with little to no modification.
I would like to see that engine in a frame, really really outstanding job.
If only it had a PTO so it could do something
I can't wait to see so, great work
Alexandre Diaz it won't last long I hear a slight rod knocking after the last high rev
Spank Themonkey yeah its made for hundreds of rpm not thousands, rods might go dry and sieze
I’d like to see it attached to a multi-geared pushbike.
What an absolute genius. I literally have nothing bad to say about this. Just absolutely incredible
This is the COOLEST F’ING BUILD EVER!!!! We need more people doing stuff like this instead of wasting everything and filling the Earth up with more junk. Way to upcycle these parts. Your ingenuity and ability to adapt parts from odds and ends is on a genius level! This guy should be filthy rich right now and teaching the way he thinks to millions more!!! Get this guy more views and maybe some sponsorships!!!!!!!!!!
this is by far the coolest homespun engineering I have ever seen.
This looks like an antique motorbike engine. So beautiful
This guy is basically: "If it looks like an engine, its gonna become one"
basically
Me and this guy need to hang out I do the same it’s my hobby I see things people wouldn’t imagine and engine
Rule 34 of engines :)
sweet Now if i kill an engine I can get out my bucket of bolts and make an engine
And I can’t figure out why my lawn mower runs funny.....
I personally like to see him put that engine into application, like make it do some work. custom mini bike perhaps
Not possible bc it has no output shaft
@@shadowknouse6020 Bet he could make one
Mechanical Malpractice what about a kart
@@shadowknouse6020 But it does, you can see it spin, it just needs a clutch, everything else.
Could use it to run a compressor.....if he still had one.
this guy is a REAL MECHANIC, and not what we have nowadays... They buy new parts and put them after removing the broken part
This is what I've always wanted to see that I never could do....convert a lawnmower engine or something to a diesel engine or make a diesel engine from scratch or convert a compressor to diesel please do this it would be awesome
I want to suggest you something: try to use the hybrid setup (1 cylinder as compressor and 1 cylinder as engine) with the compressor cylinder as a “super charger”. Connect the compressor outtake in the engine intake. Idk if it could work, but if it does, it would be amazing!
Btw, congrats for the excellent videos, I really love your channel!
Juan Rodrigues they made a couple of Ford 302s Like that
That just sounds like a really inefficient supercharger lol
the other cyl not as an engine but as a expander, that is called combined cycle and is wade more efficient than the supercharged setup
That sounds awesome!
In theory you can produce up to 1atm/~14.7psi of boost(Considering we don't have any leak and no extra space between the pump/engine for the air to expend) since the compressor compress air once per rotation while the engine intakes once every 2 rotations.
But a good portion if not more of the power gained will be consumed in the process due to the force needed to compress air, leaks and inefficiencies.
That would look PERFECT with a propeller and mounted on the back of a small, one-man air boat. Excellent work. I am completely impressed with your skills.
Excellent job ! The work here warrants thinking on a different level from the average engineer !
It was a pleasure seeing the execution of your thoughts.
Well done !
Trinidad & Tobago.
West Indies.
Imagine putting this in a motorcycle and rolling up to a show like "Yeah it's my handmade Hemi V-Twin made from a compressor block..." Biggest flex award instantly
🤣🤔🤔😎
yep. in fact i may do something like that. i live in lubbock texas. any idea if it is possible to find a good sized and shape v twin air compressor at a junkyard?
he TOTALY didnt just post a vid of him givin it a trans, and a nother putin it on a bike.....
"Compressor Block"
@@jackmagnium6115 you just need to find a compresser
I'm not sure some people understand the skills you have. Very talented
I thought I was the only person that kept EVERYTHING from every single thing I've taken apart. I need to show my wife this. There is a reason why we keep everything LOL
Yeah gonna be useful thing one day hahahaha
I showed my wife this and she said lets bet he is single and you know the reason..... wife is wife whatever you do...
Now you know sell it now..you can anything in the future
I always say when I die and the wife and kids are going through my stuff they're gonna be saying "why does he have all this junk"
I am 21 and my parents complain and threw away my chainsaw engine i took apart im crying
Congrats! You were a very lucky guy to find all these parts in your scrap metal bin, as there are two identical cylinder heads that also fitted to the compressor cylinders, the timing chains and cogs etc. Nice work, btw!
looks like two weed eater motors
@@zakaijohnson9421 weed eaters are not four stroke
we want more
Ang galing mo pre , grabe ka madami kn nman pinahangang banyaga, keep up the good work and more power to your channel! God bless
I love the big box of stuff he just goes
Digging through for parts !
Like Lego
Ну вот, скоро компрессоры сами будут до места назначения добираться, своим ходом. Молодец парнишка, руки золотые.
Said no man ever: I'm going to make a V-twin engine out of a compressor.
MUCH Respect. Thanks for passing the time!
Isn't that what Harley Davidson has been doing for years
A engine that cant power anything bc it has no output shaft
@@shadowknouse6020 the dude mirrored a cylinder head by cutting and welding, certainly he could add an output shaft to this but that wasn't the point, it was simply a fun project
Bike manufacturers: we spent millions to RND for updated engine's
This man : hold my wrench
I clicked on this thinking I'll just skip through it as compressor looked like the old junk I see at work, that was not happening. I cant remember when is the last time I watched a half hour youtube video till the end. This engine deserves a chassis, I suggest dune buggy or similar, this is some mad max stuff.
i don't think it will have nearly enough power to move even itself, cuz powerful enough engines aren't that simple.
Мыслитель Вечный maybe if the engine charged a battery via a generator that provide power for an electric motor to propel it.
This thing most likely only makes a couple horsepower
@@TrolloTV that was my question I don't think its going to make a ton of hp but it makes me wonder what it actually makes
stephen preston I’d be very surprised if it made more than like 5hp, to be honest. Also I’m not sure about whether the compressor cylinders could even handle some load
I own a business that focuses on recycling. This is amazing,I love it. Basically TRASH TO TREASURE.. it doesn't get any better. Keep it up.
Looking forward to your next video.
to do this you would need $10,000+ in tools and a very in depth understanding of machining,mechanical engineering,assembly and welding
This is so
Much better then people building houses out of mud
this guy is awesome. He knows just about everything of the engine theory
All with a tig welder, lathe, and end mill in a drill press. That's pretty impressive.
This is impressive. I thorght about this Manny times, also with a radial AC compressor from a car, but sorting out spark allways had my stumped! Well done. Your a very talented man.
This is an excellent engine and it sounds fantastic.
Excellent work. Thanks a lot. I will surely show this to my students. It is just perfect for students and those who love mechanics.
It still amazes me that he get these engines to work, he must be one hell of an engineer.
কি নাম এই মেসিন টির?
I admire this guy so humble and kind.
Boy has amazing mechanical skills and knowledge.
77987
Someone, probably: You can't just make an engine out of random things in your garage!
This guy: Hold my parts bin.
Again, he just turns ' everything to everything ', genius !
TWIN COMPRESSOR ARE NOT A BAD TINGS , BUT WHAT HE ACHIEVE IS ASTONISH. CARBURATOR ALONE IS A WORK OF ART.
Put four like this in row and you will have an outstanding V8 and use it in a car
On a go kart
I don't imagine much power being made lol, those pistons look to be half the size of my cars pistons, and it's a 3.0 v6
@@Dappersworth mathematically that would make it a 2.0 v8 that's plenty enough power for a small car
@@georgebamber6871 Welllll..not quite; The stroke of that thing is probably less than my cars engine, which would reduce the size even lower than 2.0L. My guess is with 8 cylinders it would be between 2.0L and 1.5L. You'd probably need forced induction to get any practical power out of using 4 of those things.
you know, there are cars with two cyls like fiat air
The green tubing makes it look like a weird alien toy I had when I was a kid
Ггскюм
Incredible that every contraption of an engine that he turns into works faultlessly
⁰0
After watching this, Harley Davidson motorcycles will be proud on you. 🔥🔥🔥
I second Juan Rodriguez's suggestion of using half compressor as supercharger, that'd be fun to watch!
This guy is a true apocalyptic survivor. Awesome job brother
From the front it resembles a ford 4.6 engine. And probably makes the same power as well!
hilarious
I thought the same dam thing haha lol
L
what a super cool display engine this would be superb as a show in a class
Was anyone else like “ oh look at that cute little baby camshaft”?
yeah also excited it is ohc
I mean. If all you do is cars.... sure
nah. my moped camshaft is much cuter than that thing
This is the most impressive thing I’ve seen in quite some time
The dude converted an intake port to an exhaust port. Never seen that b4.
The slave cam across 2 cylinder banks killed me 🤣
This is some of the best UA-cam content I’ve ever seen this guy is a freaking engineering genius
This is the coolest mechanical engineering I’ve ever seen
Very ingenious. I love to see someone fabricate something from nothing.
Id love to see the HP rating of this engine.
I dont know about HP, but I'm sure it's got good "compression" get it?? Hehe he h e
@@carsonw722 lol
Well, soon the compressors themselves will reach their destination on their own. Well done boy, golden hands
this is the guy you want to be friends with when the apocalypse comes.
Mason Reppeto hell yea wow!!! Unreal !!! Great man!!!!
We are in pre apocalypse mide right now. I think you mean post apocalyptic mode.
Exactly! I want him in my tribe!
Protect him at all cost!!
And your other friend should be a 9mm :)
Never thought I'd see the day...
When engines run on Sprite Cranberry LOL 😂😂😂😂😂😂😂😂😂😂😂
top de mais 👍👍👍
"Need a chain cover." Yes...
It needs an airfilter too.... Great job Kudos Man....!!!!
Please fix it on a motorcycle please it's a request....
It would be steampunk af if he wouldn't paint it and add those lime tubes 🤘🏻
It doesnt have a PTO o the other side of the crank
thats what im thinking.
This motor is useless bc it don't have a output shaft
A real "Meister". I'm impressed, in just half an hour, but no more compressed air in the workshop👋👍👍😁😁😁
I really really really would love to see this thing mounted in a go-kart or a moped or even a lawn mower and see what it could do
Me too
Same thoughts.
Круто когда у тебя есть такая гора деталей, где ты можешь без проблем подобрать необходимую головку цилиндров.
Круто когда у тебя гора мозгов!🤣👍
Круто когда у тебя гора мозгов!🤣👍
I must admit what this masterpiece even sounds like Harley's
To bad its useless bc it don't have a output shaft and no it don't sound like a harley
today i learn that i never be able to do such thing... Thx man, everyday ppl need to learn something
I'm excited to see you put that engine into a motorcycle.
Varadero 125 use vtwin engine. Check it out
This motor don't have a output shaft it can't power anything
You should do a gas to diesel conversion sometime.
Too easy xD better V2 one cylinder diesel and one petrol haha
@@exxaited I can't imagine how it's gonna be ..haha
Just found your channel and i must say i am really loving what you do! Giving me alot of ideas and inspiration. And you make the perfect example of making great use of whatever you have lying around! Cant wait to see more! 😁
that and having a lathe,mill,milling machine,very high end tig welder,being highly skilled in every trade and very advanced understanding of every element of cam timing,stoke and internal combustion engines helps.
AAaaww that's the cutest spark plug i've seen in my life! Gonna buy a tiny engine like that and put it on my desk at work as an cooling ven for those warm days 😆
Congratulations, always very creative. Now, the idea of using one side as an engine and the other side as a compressor, was really great. Should have focused on that idea, the people would have loved that idea.
You take a long time to post new videos, but they are excellent.
Leandro Wagner.
As he was building it i was thinking to myself "I wonder if that could work". Then he does it and it does work! I think its a brilliant idea for a portable compressor for airing up tires in the field or something. So much lighter than the motor with separate belt driven compressor units. This would just be one small motor and maybe a small storage tank. Easy to carry around if you had to.
People do this with VW flat fours - use two cyl for power and the other two as air pump. Cheaper than buying a new gasoline-powered air compressor.
@@keithyinger3326 It's not going to last. The bottom end isn't designed to have the load of combustion on it, as seen by the fact it only has 1 main bearing. Also it would be slow. You'd be better off going to work and making the money to buy a cheap compressor. Or just put a motor on the compressor that got turned into a motor...
I’m wondering how long it would take to overheat being that it’s air cooled and would be stationary as a compressor / engine.
Use the air compressor side to act as a turbo
The real genius here is all of the parts saved in those piles
isto sim é um trabalho que devemos compartilhar a inovação do técnico.
You have an impressive collection of bits and pieces
I wish I had your skills! You are on another level!
Take time and learn.
stop gaming and do something with your time that benefits you
Try turning a W air compressor to a W engine for the next episode!
The drawings, gestures, text overlay, little editing tricks, and so on that you use to show what you're doing is very slick, hahah.
It works out nicely and makes for a very interesting and addictive video style!
Thumbs up 👍 to the editor for that camshaft loose/tight graphic. The engine looked great all cleaned up and running. Great job.
Next, let's build 2 stroke V-Twin engine :D
Next time: "I turn a Ferrari V12 engine into a water pump"
Other way
When I was a kid working commercial water blasting we had a Ford 302 engine 4 cylinders were engine the other 4 cylinders were water blaster
Better and easier for you to turn it into a boat anchor!
i seen a big block chevy engine being used for a hazmat pump on the jobsite.
😂😂
It would be so cool to see him make a radial engine out off two of these compressors
Great idea !
would be fucking hard because he would need to fabricate a cranckshaft
@@Hugo-um8nh well, least he has a lathe and a milling machine. Surely would make it a lot easier. With a bit of research, I'm sure he could do it.
Man the things you throw together is awesome!!
Only a mad scientist could build this contraption, and fill up the engine with cherry sprite, "It's Alive"
*me: *waiting for my 50cc scooter to be fixed**
meanwhile engine einstein: **makes an air compressor into an engine**
Do you have a 4 stroke or 2 stroke 50cc
Fried Chicken 2 strokes r terrible
@@ilyas.o After Reading this i am crying in a corner, 2 strokes are Better for performance but worse for the km/l ratio
Daniel Di Gregorio 2strokes just feel weird like they have no power when ur taking off they’re 100x less durable they sound lice a can being dragged on the road they require more maintenance and they’re just nit worth the money
@@ilyas.o "no power" "100x less durable" "require more maintenance" "not worth the money" you dont know ANYTHING about engines. 2 strokes (especially smaller CCs make alot more power if tuned properly than 4 strokes, they can be as durable as 4 strokes if you maintain it properly. Last of all many of 2 strokes are cheaper than 4 strokes.
When you are stranded on Island, in the middle of nowhere:
People; waiting for death...
He: Oh, i will. Make a helicopter out of wood, and fly away..
Gillians island....this guy would been there for 30 minutes, and got off the island.
@@Laffy1345 he: Oh, there is a palm tree, good... I will. Make a helicopter out of it..
Funny bastarding answer off all UA-cam comments
😂😂😂Lol
This is amazing talent" I'm very impressed " I've thought about these things " but he's actually doing it" and doing it very well ". Fun to watch how it's done". I love the v twin bike too" Good job" .
You should try making a GO KART!!! But with stronger materials, maybe a race piston?
Although this sounds really good, you are a top engineer
I'm going to stop strangers on the street and tell them what a badass you are.
Bnda
hell yeah!!!
There are just so many talented people on UA-cam and you Sir, are a genius !!
If this guy was selling these I would definitely buy a couple
$2000 us,lots available....you pay shipping of course
HEY ! Try to make a bicylinder engine wich one is a 2 stroke and the other a 4 stroke ! I'm sure it's possible !
1952 Trojan van engine was on that principle. Very complicated...very gutless.
Won't work. Your enthusiasm is infectious, though! :-) LLS. Can you prove me wrong? Oh, please do!! Pixisto! I think he is going to do it!! It will be a "Six Stroke Twin". The first in the world.
@@jlucasound more like a 3 stroke.. cannot be done from a single crank case on this planet I think
@@extractorfan2143 Well you can put a 2 stroke 1 cyl and then make the 4 stroke 1 cyl share the crank as long as there is two seperate engine blocks and then have something like a crank tunnel between them.
Hmmm... you could leave the ignition out of the two-stroke and instead have it pump air into the four-stroke side. Twice the compression strokes, so it should pressurize the intake - kinda like a turbo or supercharger. You could probably feed it through a small intercooler first.
Lifan, Taotao, Skyteam: "Noo you cant just use a broken compressor and scrap heads to build a bike engine!" >:'o
LLS: Haha tig welder go mmmm:)
Or maybe
LLS: Haha Compressor engine go Brrrrr