So exciting! It will be fun to see when all the little bugs get worked out, a permanent starter is figured out and the first road test ride!! Loving the videos, great job to all involved!!
They have it jetted a little lean. It causes them to backfire through the carb. It really doesn't matter. This thing will vibrate so bad no one will ride it more than one time or one mile.
5 intake ports, two exhaust but the sleeve only has four cutouts. They line up in the correct way during the cycle it's fascinating how these Bristol engines worked.
Such a beautiful piece of engineering. Im here from Facebook! Saw a short of you starting the bike. Saw how simple yet complex your engine design was, and became instantly intrigued. Glad you finally have it started!
Absolutely magnificent! Ive been excited for this day to come and now im even more excited to see it running and hopefully going on the road sometime! Great work and enjoy ur drinks!
Very nice, great success, been waiting for this day since discouvering your chanel, but watch out for the decompresser, cause you can see it beeing succed in in the video.
Congrats! Hopefully you'll be able to get the starter situation solved without resorting to dropping compression further. Also, I wonder if you need a stronger spring on the compression relief? It seems like it may have been getting sucked open a bit on the intake stroke whenever you closed the throttle.
Some seventy years ago -late 1950's / early 1960's I was working in the ERD [ Engine Research Dept ] Patchway works of the then Bristol Aero Engines Limited. We used to run single cylinder sleve valve test engines. Hercules or Centaurus size pots, they ran as far as I can recall with a heavy flywheel. I think this motorcycle application may have had a crankcase etc from one of these units. A sleeve valve crank mechanism would have to be involved. I reckon it would jump up and down a bit without a well balanced crankshaft and maybe a flywheel as well. We ran many separate parts of the whole engines to research and hopefully improve each units performance both piston and jet engines. Piston engine research was just about finished when I was assigned to the ERD.
@@philiphicks9656 interesting! This is our own design, but I'd like to see any old photos of the single cylinder test units. Especially any power graphs - I don't suppose you have any? Our flywheels are 50kg.
Amazing to finally see it run! Well done sir, congratulations on your success. Soon it will be cruising down the road with a very happy man in the seat. 🖖
Well done Mark and the crew. 🎉 Great achievement! Sounds a bit like an old two stroke 😝 just now but I’m sure it will be purring in no time. Like I say, brilliant results and very inspiring. See you on the road real soon bud 👏🤘
Excellent I love this build 👍👍👍👍 I would beef up the engine mounts..you can see the engine moving in and on its mounts.. vibration will break lots of things...!
Forever and ever Even growing up when I was like 12 yrs old I would look for videos of one of these running. Absolutely awesome what you guys have done and it sounds amazing. The Napier sabre engine is artwork always found it amazing how much power it truly could make. Very very cool beyond cool. Subscribed it's so cool.
Many years ago a old man told me about a single cylinder truck in Germany . This soon after the war . Said it was chugging up a hill carrying a load of wood .
Awesome, I dearly love the Bristol Sleeve valve Radials, a former work colegue had two of the Hercules engines in his garage under the house. The whole place was so clean that if you licked the floor, you would be making it dirty. It was all but hospital sterile clean. I presume that you have the rest of the Hercules engine, & if so, I wonder how a V twin version would be. At least it would reduce some of that vibration.
"The audience is now deaf"
But really, congrats! Thats a big achievement.
Aye? can't hear ya, Did ya say no fuel left? 😁😁😁
@@anaru5643 m8 wot?
Nice marathon profile pic
@@BigTwin-74 Thanks :) Always cool when somebody recognizes it!
Fantastic! The noise, the flames, the smoke, the vibrations. Absolutely brilliant!
Motor yang menakutkan.
So exciting! It will be fun to see when all the little bugs get worked out, a permanent starter is figured out and the first road test ride!! Loving the videos, great job to all involved!!
and the flames came out of the right port too! 😁
They have it jetted a little lean. It causes them to backfire through the carb. It really doesn't matter. This thing will vibrate so bad no one will ride it more than one time or one mile.
Yes Doubleport.
5 intake ports, two exhaust but the sleeve only has four cutouts. They line up in the correct way during the cycle it's fascinating how these Bristol engines worked.
Tremors felt down here in Aus.! I note that the chain has already surrendered to the impending massive torque load. Congrats and well done.
The sprocket bolts shot through in fear as well.
Such a beautiful piece of engineering.
Im here from Facebook! Saw a short of you starting the bike. Saw how simple yet complex your engine design was, and became instantly intrigued.
Glad you finally have it started!
Absolutely magnificent! Ive been excited for this day to come and now im even more excited to see it running and hopefully going on the road sometime! Great work and enjoy ur drinks!
Well done guy's great work by you all, very special moment.
Niiiccee!!! Earth shattering machine!!! You can be really proud!!!!
Yay it lives! Nice work! Cheers from Canada!
That Giant Piston would act like a Wacker Packer! The Vibration would be Crazy - Cool None the Less
Congratulations 🎉I've been following your build from the beginning and this is an absolute milestone
Its sounds incredible!! Congrats!!
Congratulations. Well done!
Congratulations, been looking forward to forward to this😊
Brilliant! I've been following this for a while. Amazing achievement with such an ingenious ,unusual bit of engineering history . Enjoy the pint!
It's only when you got on it I could see just how big that cylinder is! 😊
Very nice, great success, been waiting for this day since discouvering your chanel, but watch out for the decompresser, cause you can see it beeing succed in in the video.
What an achievement. A unique bike with a special engine. Well done to all the team:-)
Hahahahah.....fkkin brilliant!! Another Hercules cylinder breathes life again!! Only 13 more to go to make a complete engine....WELL DONE!!!
I really think it's time for a flywheel that is a bit heavier
Thunderous! Congrats!!
Great work chap...
Massive milestone..
Mate...that is...on another level. Congrats ❤🎉
As a biker, I'm curious. As an engineer, I'm fascinated. First time this has appeared in my feed, I have some catching up to do 🫡
Congratulations, Mark and team!! What a great sound.
Congrats! Hopefully you'll be able to get the starter situation solved without resorting to dropping compression further. Also, I wonder if you need a stronger spring on the compression relief? It seems like it may have been getting sucked open a bit on the intake stroke whenever you closed the throttle.
Awesome, love to see this and the project! It sounds snappy and awesome for a huge single cylinder! Congratulations.
Congratulations to the success.
Massive achievement, looking forward to seeing you getting all the variables zeroed into the optimal set up. What a beast 💥👏
Congratulations from the Netherlands!
even the camera got excited 😂
Congratulations that thing sounds rowdy!
Excellent seems to run very well, I was thinking a while ago about if an air starter would work - compressed air in the cyl type
Wow! 🎉congratulations dude! It sounds INCREDIBLE!
Absolutely, bloody fantastic.
Incredible, well done!
Some seventy years ago -late 1950's / early 1960's I was working in the ERD [ Engine Research Dept ] Patchway works of the then Bristol Aero Engines Limited. We used to run single cylinder sleve valve test engines. Hercules or Centaurus size pots, they ran as far as I can recall with a heavy flywheel. I think this motorcycle application may have had a crankcase etc from one of these units. A sleeve valve crank mechanism would have to be involved. I reckon it would jump up and down a bit without a well balanced crankshaft and maybe a flywheel as well. We ran many separate parts of the whole engines to research and hopefully improve each units performance both piston and jet engines. Piston engine research was just about finished when I was assigned to the ERD.
@@philiphicks9656 interesting! This is our own design, but I'd like to see any old photos of the single cylinder test units. Especially any power graphs - I don't suppose you have any? Our flywheels are 50kg.
So chuffed for you Mark!
Dude! Congratz!
I thought my KTM 500 vibrated until I saw this beat fire up!
Awesome! Sounds amazing. Well done guys 👍
Epic!... congratulations to you and Bob!
Привет из России. Шикарный проект. Урчит как котёнок
@@user-zq6ic5yw6p Priviet! And Spasiba!
Bloody brilliant! I was starting to despair!😄
Epic! Clear prop! Chain in this case! Congrats!
Love that it uses half the fork stroke when starting up 😂😂
Amazing work!
Wow. Hats off to you guys. Bad ass.
Congrats! Awesome achievement!
Need new fillings after every ride 😂 awesome!
Great achievement guys! Hate to be living next door tho 😂
I love the way EEEEEVERYTHING shakes, well done guys I’m going to watch more!😊
I'm not sure what I just came across but I just subscribed...
Amazing to finally see it run! Well done sir, congratulations on your success. Soon it will be cruising down the road with a very happy man in the seat. 🖖
Woop woop it's alive 👏🏻congratulations to all, just brilliant 👍🏻🇮🇪
Very well done. Excellent !
Well done👍👍 Cheers from California.
Wow that thing is a beast! Very cool.
Awesome job, boys!! From the left side of the pond👍😎
That is wicked cool what an amazing piece of machinery.
Sounds mental,,congratulations
So great, I just sit here with a big grin on my face, enjoying your succes. I´ll drink to that! ;o)
Well done Mark and the crew. 🎉
Great achievement!
Sounds a bit like an old two stroke 😝 just now but I’m sure it will be purring in no time.
Like I say, brilliant results and very inspiring.
See you on the road real soon bud 👏🤘
Damm that made my Day 🎉🎉🎉🎉🎉🎉
Im a new viewer and I’m not sure what I just watched here but it looks amazing
wow fantastic love it she runs all the best man looking forward to seeing it go down the road
Congrats this is awesome 😊😊😊
Congrats!
Well done lads!!!
Great achievement and a nice community of helpers there too
Nice work guys sounds great
It's alive!!! It's got a sound all of it's own. Timing and carb to sort now. Well done all!!!
Excellent I love this build 👍👍👍👍 I would beef up the engine mounts..you can see the engine moving in and on its mounts.. vibration will break lots of things...!
This thing is impressive! And you made it breathe and live!
How do you set up the right mixture? Colourtune spark plug?
Torque pulses will snap chains, cush hub and a sprung seat, maybe sprung handle bars to avoid 'sand hands'?
Outstanding! 🤘💪👌👍
Awesome, congratulations 🎉
Well done, its a runner ! :)
I especially like the exhaust system.
def needs an exhaust system to make it more bearable to even ride it lol
Looks a little rowdy but congrats looks amazing
just found out your channel, my lord, what kind of engine is that!? haha now i need to dig more into your videos, greetings from México.
I JUST GOT HERE, holy fvck what a BEAST. SUBED
Excellent can't wait to see it roll down the road now.
Give new meaning to the term, BIG single!! Seismic!!!
Forever and ever Even growing up when I was like 12 yrs old I would look for videos of one of these running. Absolutely awesome what you guys have done and it sounds amazing. The Napier sabre engine is artwork always found it amazing how much power it truly could make. Very very cool beyond cool. Subscribed it's so cool.
@@ephenj thank you!
Iam a fan of the idea . Better ? The same but diesel , pro charged
By golly this thing is bonkers and I'm blown away by how well it runs for a first start, very impressive indeed 👌🏻
Just the job for riding around Sadiq Khan's Ulez zone 😂
the king of the thumpers
If your interested, key in, Alan Millyard, The Flying Millyard bike and see what he built with only two Pratt and Whitney aircraft engine cylinders.
Wow! That is really something special! LOLZ!
Well done! 😎
Many years ago a old man told me about a single cylinder truck in Germany . This soon after the war . Said it was chugging up a hill carrying a load of wood .
Awesome, I dearly love the Bristol Sleeve valve Radials, a former work colegue had two of the Hercules engines in his garage under the house. The whole place was so clean that if you licked the floor, you would be making it dirty. It was all but hospital sterile clean.
I presume that you have the rest of the Hercules engine, & if so, I wonder how a V twin version would be. At least it would reduce some of that vibration.
@@KB10GL sadly I have very few Hercules parts. A V-twin has been done to death anyway 😁
absolutely brilliant
This is the first I've seen of this thing. Instant sub.
I'm gonna spend Sunday binging to catch up , everyone leave me alone today please.😁
@@Doug791 there's a handy playlist for that. 😁
@@StoneEng Found it , leave me alone. Very busy.😂😂
great job guys
Awesome mate really pleased for you and Mr Bob great job 😎😎🤘🤘🇹🇭🇹🇭
I had my doubts, but congrats.😊😊
Now that is a thumper👍