Over 40 years ago I made a 1cc motor drive a bicycle at about 30 km/h. It lasted less than a minute, but it was the success feeling I needed for myself 😊

As a former rc car enthusiast I was wondering how long that poor little clutch would last! I’m shocked it even worked the first time, I’ve burned them up in tall grass before! Still very cool!

I never thought that I'd see my Honda 50 as having a big engine.

can we take a moment to appreciate how slick that moped frame is?

Thanks for taking the time to make these videos 👍 I understand how much time it takes to make projects like this possible. Haha I have a CNC robot in my shop too, robots are awesome 😂

For some reason this just really warms my heart. Nice work!

It's like putting a motorcycle engine in a semi truck 😂

The Tomos clutch needs a serious weight reduction, it's engaging at a too low rpm. Four NovaRossi, Picco or OS engines would solve a lot of problems ;-)

Your channel is quickly becoming my favorite experimental engine/motorsports/tinkering channel ever! Your ideas are everything I've always ever wanted the fabricate and experiment with! I wish I had the machines to do this stuff! Rock on!

I'm impressed the RC motor and it clutch drove the bike at all, so in that way it was a success. A 15cc RC engine is more likely to have a fighting chance and perhaps a go cart chain would run smoother.

You're SO right - a lot of us have dreamed about using old tiny nitro RC engines for bikes etc. If you're looking for a working clutch design for low-power engines, check out the old Honda CT 70 (and 50, and 90, and 110) "automatic" clutches. They're probably too heavy for this application, and they run in a light oil bath, but they're designed to operate reliably with 3.5-10 horsepower engines for years and years. I got a CT 70 when I was 12, beat it up for 4 years, gave it to my middle brother, who beat it up for another 4 years, then gave it to our youngest brother. He rode it until he turned 16 and got a Honda 200, traded it in and it was still on the original clutch plates.

Can you reduce the spring pressure on the main clutch? I had a batavus years ago and I was able to stretch the clutch spring and remove a couple of the steel balls to raise the stall up preventing it from engaging at lower rpm. Made takeoff from a dead stop much better. Higher revs allowed the clutch to really grab instead of slip. Similar concept as to some of the comments below for the RC clutch.

Best channel on UKposts

Any tiny engine with sufficient power (~1 hp and up) can be used for powering a motorcycle. Depends on what top speed, acceleration, fuel consumption, noise, emissions, and service life you're looking for.

I made my own hi-stall clutches for my RC car. No melting, and much higher stall than stock.

i was watching your videos for three years, although i have never ever riden any kind of moped or scooter in my life. let alone a two stroke... don't know why, but i was never intending to use any of info you provide so elegantly. and about two weeks ago i found an old riga-13 two stroke motorised bicycle in grandparents shed... i stood there for about ten years untouched, partly dismantled. No clutch cover, no ignition system cover. Just rusting. Today, i got it perfectly running and went for my first half hour ride around the block. Thank you for the inspiration. And the two stroke sound is just out of this worl :D

Amazes me the patience and knowledge of people like this chap!

that's why I love this guy. he's not afraid to try things that every gearhead, whether just a kid, or grown up, has wanted to know, or try, and couldn't for one reason or the other. that's awesome. I mean, who hasn't tinkered with these little motors on RC cars, and hasn't thought about doing this at least once? 😎👍💯

Pretty impressive for such a tiny engine. I'm curious about the Jawa, I had two of those and one of them did 80km/h with little modifications.

Just imagine hearing this thing coming screaming down the road from the direction of the shed that the worlds most powerful 2 stroke was made in. And you see this madman rolling past you at walking pace...

I would reduce the speed first with cogwheels and use a regular clutch from a moped. This ensures the engine can run in it's intended powerband and you will not smoke the clutch.... Love this channel!

Very cool, definitely thought about this a lot when I still drove my 3,5cc carson. Are there no adjustment screws on the clutch? Puch clutches had adjustment screws that would allow a somewhat-high grab point. If that wasn't enough there were stronger springs available.

Video was still very entertaining! I've been watching you since the beginning, you're the man!

I'm 2 minutes in and already feeling that poor little clutches pain

Yes I have dreamed of this many times,love this stuff,so cool

Rarely has the sound and image of a video been so weird. Sreaming 100mph sound and a leisurely 5mph bicycle trip round the block! :D

We appreciate you side tracking your numerous jobs to show us something cool 👍

For fine tuning the chain tension/overcoming the design flaw, you could simply use some jack bolts threaded into the top plate that when screwed down push off against the bottom plate.

I have made a few aluminum clutch pieces that would get hot but they grab good all of the time. Great video.

This is fantastic! When I was a kid, I always wondered if this was possible. The engine on my rc airplane looked similar enough to a motorcycle, but I couldn't test it when I was younger.

What a machine! You, Sir, are a star of UKposts, a true star.... I hope you live life and prosper.... Wishing you all the best from North Nottinghamshire UK

I would reckon that you need a lot more reduction on that first stage so that the motor gets to spin up more. Instead of a chain and sprocket maybe a timed belt although at 16-25,000 rpm the centrifugal force may make keeping it on a problem. Since I first saw you show that little nitro rc engine on the channel I've dreamed of converting 1 (or more than 1) to run a chainsaw.

That's exactly what I was wondering as a kid, playing with 3.5cc engines myself. Could it power a small go-cart?

So glad to see you been watching since your diy dyno video

Fun stuff and now we all know too. Thanks! Maybe keep your eye's open for small boat engines with wrecked bottom ends. That would be a fun 2 stroke de-stressor project. Plus who wouldn't want to know if that would work? Prudes with stock engines, that's who! Cheers man.

This was a cool project I have confidence you'll puzzle it out and make it work.

Nice attempt! I wonder if a bigger sprocket on the clutch would help. Also I think it would be interesting to see another one of these added for the front wheel.

Hi, I don't think RC Car racers would like you calling the engine a TOY, like calling a 50cc engine only for a mopeds.

Based on my experience with the Vegas, next time you bring a different framerate video into the timeline -> right click the video, go to properties and at video event tab "disable resample". The file will render and play normally after that.

Great content 👏 Always wanted to put these nitro engines in unusual platforms

That was fun and a nice break from the big projects.

You should try to putting a mini bike clutch on the jack shaft. It will probably put less stress on the other clutch.

I think 4 of them _might_ have enough torque to take off from stop and get you to 15mph. love to see someone do this!

That is pretty cool, makes me want to get the nitro motors out and mix some fresh fuel. Good job👍🏻

Thank you for trying this. I always thought it would be fun to try it on a bike with a 9 spd cassette to see if it could shift like an F1 car, but it needs more torque just to overcome the drivetrain friction. You have proven that the chain could be mounted directly from the motor without flying off, so I’m impressed. How about using a 2 stroke chainsaw motor?

Man and me struggling to fit 2 bearings in a minarelli moped, this man thinking of machining axials, bushings, and clutches for a minuscule toy engine.. You are crazy, never let the brap die!

Never clicked so fast

Ha ha ha... I know the feeling when you just know that somebody will get angry if you do something, but you can't help yourself.. Just had to do it.. Love it ;)

I have a Cen/Gen 7.7 and was actually considering the feasibility of this the other day. Thanks to your amazing video, I have decided to go on to another project, like, keeping the nitro engine in the model where it is now, getting a beer and chasing my cats with the remote 7.7. 16:10-An appropriately sized fan hub with thin, angled blades pressed onto the primary clutch body may allow the clutch body to shed heat in a more rapid manner than it does without a heat elimination strategy

you are allen millyard from an alternate dimension

Man i had this idea 2 years ago, you just made it!!

Thanks so much bro always wanted to try this now I know it will work!! Because if it works with a 3.5 cc Engine. Imagine what it will do with a 15cc rc engine!

I get the feeling these toyan engines really aren't designed for actually usage.

Really enjoyed seeing your neighborhood from the go pro

It reminds me of one of my uncles, he's a medicine doctor, and he's playing around with old 50cc race mopeds the weekends. He made me try one once, I remember that stupid high revs sound going at around 10km/h before changing gears. Then I've been arrested by the police 😂 That's a funny thing though

I think you should try a bigger sprocket on the rear wheel. These engines need revs, as you said yourself. Cool video, I've always wonderes if this would be doable :) Cheers from Denmark

I'm amazed how that tiny piston is running that motorcycle

tnx man . its my dreamwork

The failure of the RC clutch was disappointing, but expected. Could you just add stiffer springs to the current larger clutch to alter the engagement rpm?

That's cool, my kids pocket rocket at 39cc will hardly pull my weight from a standstill but with a bit of space to get up to power band things get real quick real fast

As an experienced machinist, I approve of your machining skills. 👍 Very good. Now if only I could afford my own machines. lol Love your videos! If I may make a request, I would love it if you played with small compression ignition engine designs. There are RC "Diesel" engines that are really clever.

I've searched for this topic more than once in two years and now it has appeared

Great engineering job bud!😎

I am also very partial to the 2 stroke. It looks great too

I subscribed after watching this bro you are the best do more videos like this!!!

Would love to see you build a 50cc large scale rc nitro engine. The power would be off the charts yo! btw i enjoy following you though your journeys .

I been waiting for someone to do this

Another cool vid this is a man who knows how to have fun, my kind of fun for sure. So rad.

Thx Mr. U give me hope. My motorbike broke down in the wrong side of a South African town(-ship)... I must figure out to get 2end engine in the Chinese 200cc motorbike..

Time for a multi engine "radial" version 😉

You should definitely get should a 1/5 scale two-stroke RC engine they make them from 23cc up to 30.5cc as far as I know and I had a Rovan RC with a 30.5cc engine that ripped pretty hard! The components are tougher as well like the clutch and it's big enough so you can actually modify the cylinder and case for more power!

First time you reved it I could tell its rich and not reving enough. I think your gear ratios need to be optimised for the engine to rev to about 30,000 revs. I recommend an LRP .32 engine with high quality 3 or 4 shoe clutch shoes.

Great channel! Please keep the videos coming.

Hi, about the part that the rpm was high enough, did you consider the gearing on the small to big sprocket?

You need a really high actuation clutch. For example, on my bike with a ktm sx 50 engine, the clutch is triggered at 9-10 thousand rpm. If it's softer, the bike won't move.

Yo this is amazing! I've wanted to see this for a long time!! Could you try with a manual clutch instead of centrifugal? :3

Come on man, all that cool machining knowledge and equipment make a great box

Should put a 100cc chainsaw engine in it next, that would be mint.

Hi great fun .. I had similar issues when installing a 30cc four stroke model engine into a r/c model helicopter . A wire eroded heavy duty clutch shoe gave the added BITE at lower rpm .

...And I love your area. So peaceful. I'm envious.

New to the channel so I apologize if I missed this but why are you using the tomos gearbox? Could you run the rc engine with no clutch to a jack shaft with a conventional moped clutch to the rear wheel?

Would love to see u build a tiny engine for a moped. The smallest one that works "ok"

I really want to live in Norway, it's lovely... not sure of those noisy neighbours though 😍

Cool man-I have a long trimmer I want to add to pedal bike-yes two stroke and have to find exhaust for exhaust. Wish me luck. Cheers

Epic tinkering ❤

That little thing sounds like an angry bee! I wish I saw more of those around my area.

I am curious about if the RC motor would have done better slapped onto a Motobecane AV7 or 10 with it's open variator and belt system. It would be more work to set up the bike initially. But for low power and torque applications it seems like it would be more optimal. Also seeing that Tomos A35/55 engine gives me flash backs to my youth rebuilding my own bikes. Haha, awesome video man.

my respect, man!

This bike sounds much faster than it is........Cool video thanks for sharing.

That is a Tomos block your using and the clutch has a one way needle bearing in it, it locks in one direction and freewheels in the other direction, it locks to the crankshaft in one direction and freewheels in the other direction!

"with a long enough lever and a fulcrum to place it i can move the world" - some intelligent dude

Do you need the clutch on the engine if you have the one in the transmission?

Artig prosjekt! Har alt for mye RC deler og motorer liggende selv, godt å se andre gjør noe litt annerledes. Håper dama ikke ble alt for sinna ;)

So cool keep on with the journey so Awesome thank u

Nicee work! What about a gear reduction? The nitro engines rev to around 30000 rpm idle bloody high too so the clutch cant bite because the engine would have to bog down to stall point. A gear reduction may allow you to reach a middle ground of top speed and torque.

The pins in the Tomos clutch need to be on the right side, they where left at the clutch you installed:(. I dont know if that is the problem, but it can give issues, it will run but not how it shout be. Did you swap the spring from the original 1 clutch to the new clutch? The spring in the middle of the clutch needs to be green on the ends.

This is like putting a Honda VTEC engine into a 2023 Chevrolet Silverado 3500HD Dually.

Nice project!

Saludos desde Uruguay con ese chasis quedas transportado en el tiempo a la década de los 50😂😂😂

I too Always wanted to do this!