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.
Last week, me and a bloke put to together a Vulcan 400 with straight pipes.the noise in the shed when we started it was deafening. But now i saw this beast, id say it was rather quiet...😂😂😂 Great job there!
@@purebloodheretic4682 that thing would be rode hard and put away wet Without leaving the garage. If they had a chance one has a teminal case of VD. VIBRATOR DEPENDANCY. I should have bought stock in batteries. Bring out the Phlugenheimer!!!
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!
Ive got an ex who saw how much camera shake there was and asked if they make a stationary model she dosent need the wheels . Might want to powder coat it also. It will be splashed and put away wet. I wouldnt bother with balanceing it she is perfectly fine with it rattling her rearend and shaking her fillings out she said that would be her favorite feature. Now i remember why she is an ex.
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.
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 .
GR8 work! What Bristol SSV Air Cooled Cylinders deserve, I'd say, is being basis for a 6-flat engine, perfect for a Truck or Bus. I failed in locating 6 Bristol Cylinders, Pistons, Rods, junkheads and so in, to make it
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.
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!
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...!
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.
Awesome! I just caught up on watching the whole series. When you said £300 for the aluminium to build the new head I nearly sh8t myself. I was shouting "Make one out of something cheap to check if the starter can beat the compression." Of course, you have done it now, but I have piece of nylon if you want it. About a foot across and eight inches thick. Fnaar fnaar. I drive all over the place, frequently near Derby, not a huge problem to get it nearer. (I can't fit in on my lathe and want it to go to a good home.) I will be watching future episodes, just say if you want it, I'm known as Grog.
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.
Congratulations! I thought it might have been a radial cylinder and piston then I saw the connecting rod on the wall. Always wondered if it could be done, now I know. I bet with getting it better tuned you may be able to go to a smaller starter and battery. Well done everyone!
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.
I'm somewhat of a naysayer. I thought that thing was going to vibrate and buck like a bronco so bad it was going to be unridable over 20 mph. But it looked really good as far as engine balance goes. Excellent job. 👍👍✌️
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. 🖖
Brilliant! 😍You might need a head-steady to the upper frame to prevent stress-concentration fractures of engine mounts and steering head welds. If you can fit another exhaust tube like the rear one, so that they both face forward, downpipe plumbing will be easier, and right knee will be cooler. I really want to see and hear this beauty in person! Please let me know when tickets become available.🤩🤩🤩
Perhaps this might be helpful with the starter: Lanz tractors featured 1- cylinder engines of up to a good 10 l of displacement and hence proved to be a challenge for starters. I believe the company first used regular starters on 24 V and then switched to a version which was less of a challenge re electricity and weight: a „pendulum“ type starter which would rock the crankshaft back and forth until it was able to overcome the top dead center. It was controlled by a set of solenoids…nothing fancy. FYI here is a link - maybe it helps. ruclips.net/video/kBp1zBlEEIQ/видео.htmlsi=VsCNUv-3ngkt26fG
Congratulations from Cathy & Brian (Bob’s friends from Huntings), sometimes you just got to go for it - everything forward, trust in the Lord! Great result.
Wow! It sounds smoother than I thought it would! the starter is kinda big to lug around. retard the port chain a tooth or two, see if it cranks easier.
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 👏🤘
"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!!
My dad used to say Harley's shook themselves apart. Glad to see someone given them some competition!
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.
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.
Last week, me and a bloke put to together a Vulcan 400 with straight pipes.the noise in the shed when we started it was deafening.
But now i saw this beast, id say it was rather quiet...😂😂😂
Great job there!
That Giant Piston would act like a Wacker Packer! The Vibration would be Crazy - Cool None the Less
Ive got an ex or 3 you wouldnt be able to pry off it. One of them would hydrolock it without even touching the gas. But would be fun to see.
@@spiketheimpaler4698 😆 No Batteries Needed 👍
@@purebloodheretic4682 that thing would be rode hard and put away wet
Without leaving the garage. If they had a chance one has a teminal case of VD. VIBRATOR DEPENDANCY. I should have bought stock in batteries. Bring out the Phlugenheimer!!!
Niiiccee!!! Earth shattering machine!!! You can be really proud!!!!
Well done guy's great work by you all, very special moment.
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
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!
Should have made a v twin, would've balanced better 😂. That's top level insanity, well done.
Yay it lives! Nice work! Cheers from Canada!
Ive got an ex who saw how much camera shake there was and asked if they make a stationary model she dosent need the wheels . Might want to powder coat it also. It will be splashed and put away wet. I wouldnt bother with balanceing it she is perfectly fine with it rattling her rearend and shaking her fillings out she said that would be her favorite feature. Now i remember why she is an ex.
Iam a fan of the idea . Better ? The same but diesel , pro charged
They are completely crazy, I love it!
It's only when you got on it I could see just how big that cylinder is! 😊
Sounds like a Biggs & Strappin lawnmower 😂
What an achievement. A unique bike with a special engine. Well done to all the team:-)
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.
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 .
GR8 work!
What Bristol SSV Air Cooled Cylinders deserve, I'd say, is being basis for a 6-flat engine, perfect for a Truck or Bus.
I failed in locating 6 Bristol Cylinders, Pistons, Rods, junkheads and so in, to make it
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.
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!
Congratulations to the success.
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.
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...!
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.
Brilliant! I've been following this for a while. Amazing achievement with such an ingenious ,unusual bit of engineering history . Enjoy the pint!
So chuffed for you Mark!
Dude! Congratz!
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 🎉I've been following your build from the beginning and this is an absolute milestone
even the camera got excited 😂
Just the job for riding around Sadiq Khan's Ulez zone 😂
It's alive!!! It's got a sound all of it's own. Timing and carb to sort now. Well done all!!!
Awesome! I just caught up on watching the whole series. When you said £300 for the aluminium to build the new head I nearly sh8t myself. I was shouting "Make one out of something cheap to check if the starter can beat the compression." Of course, you have done it now, but I have piece of nylon if you want it. About a foot across and eight inches thick. Fnaar fnaar. I drive all over the place, frequently near Derby, not a huge problem to get it nearer. (I can't fit in on my lathe and want it to go to a good home.) I will be watching future episodes, just say if you want it, I'm known as Grog.
@@davegibbs403 Thanks for the offer Grog. I'm sure I could do something with it. 😁
Woop woop it's alive 👏🏻congratulations to all, just brilliant 👍🏻🇮🇪
Give new meaning to the term, BIG single!! Seismic!!!
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
Its sounds incredible!! Congrats!!
That is wicked cool what an amazing piece of machinery.
I thought my KTM 500 vibrated until I saw this beat fire up!
Mean now get the carb idling or idling on the choke awesome effort! 👍🤠🤘🎸
Absolutely, bloody fantastic.
def needs an exhaust system to make it more bearable to even ride it lol
She's a beast, to be sure. Roars and spits fire, what more could you ask for?
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!
Congratulations that thing sounds rowdy!
Congratulations from the Netherlands!
Someone put a bristol Hercules slide valve cylinder on a bike?? Oh I gotta see this! Very cool gents, very cool!
Congratulations! I thought it might have been a radial cylinder and piston then I saw the connecting rod on the wall. Always wondered if it could be done, now I know. I bet with getting it better tuned you may be able to go to a smaller starter and battery. Well done everyone!
wow fantastic love it she runs all the best man looking forward to seeing it go down the road
Need new fillings after every ride 😂 awesome!
Kickstart on that thing, backfire would send you to the orbit
😂
Love that it uses half the fork stroke when starting up 😂😂
This thing is impressive! And you made it breathe and live!
How do you set up the right mixture? Colourtune spark plug?
So great, I just sit here with a big grin on my face, enjoying your succes. I´ll drink to that! ;o)
By golly this thing is bonkers and I'm blown away by how well it runs for a first start, very impressive indeed 👌🏻
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 😁
Well done👍👍 Cheers from California.
Well if you need it redone correctly give Allen milard a shout 😂 but seriously great work on unique engine
Massive achievement, looking forward to seeing you getting all the variables zeroed into the optimal set up. What a beast 💥👏
Great work chap...
Massive milestone..
Violent for ears 😂😂😂
the king of the thumpers
Great achievement guys! Hate to be living next door tho 😂
Epic! Clear prop! Chain in this case! Congrats!
It sounds and shakes just like my AJS 500 single. Just a hell of a lot more violent !!!!
Redefines the term 'crotch rocket' for sure! 😂👍🇨🇦
Bloody brilliant! I was starting to despair!😄
I'm somewhat of a naysayer. I thought that thing was going to vibrate and buck like a bronco so bad it was going to be unridable over 20 mph. But it looked really good as far as engine balance goes.
Excellent job. 👍👍✌️
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. 🖖
Incredible, well done!
Congratulations it's a runner much respect it has been a long time coming
May the wind be at your back and the sun on your face much respect
Brilliant! 😍You might need a head-steady to the upper frame to prevent stress-concentration fractures of engine mounts and steering head welds. If you can fit another exhaust tube like the rear one, so that they both face forward, downpipe plumbing will be easier, and right knee will be cooler. I really want to see and hear this beauty in person! Please let me know when tickets become available.🤩🤩🤩
@@nlo114 there's a head steady planned, just but fitted yet. Ticket sales, now there's an idea 😁
that was the most baddaass monster i everseen!!!!!!!
Well.. next to Allen Millyards 5ltr Pratt & Whitney V twin bike.. the Bristol's a MUCH better engine concept with sleeve valving
Perhaps this might be helpful with the starter: Lanz tractors featured 1- cylinder engines of up to a good 10 l of displacement and hence proved to be a challenge for starters. I believe the company first used regular starters on 24 V and then switched to a version which was less of a challenge re electricity and weight: a „pendulum“ type starter which would rock the crankshaft back and forth until it was able to overcome the top dead center. It was controlled by a set of solenoids…nothing fancy. FYI here is a link - maybe it helps. ruclips.net/video/kBp1zBlEEIQ/видео.htmlsi=VsCNUv-3ngkt26fG
@@sodium35mg that's very interesting, thank you. 😁
Congratulations from Cathy & Brian (Bob’s friends from Huntings), sometimes you just got to go for it - everything forward, trust in the Lord! Great result.
@@firebladecymru I'll pass that on to Bob. Thank you.
shaking not vibration .. thumbs up ...
Looks a little rowdy but congrats looks amazing
I especially like the exhaust system.
I'm not sure what I just came across but I just subscribed...
Damm that made my Day 🎉🎉🎉🎉🎉🎉
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.😂😂
What a monster! Have you considered an inertia starter? A motor spins up a flywheel which then engages with the engine to crank it?
Torque pulses will snap chains, cush hub and a sprung seat, maybe sprung handle bars to avoid 'sand hands'?
Sounds great was hoping to hear it at idle
@@smallengineexpert6607 when it idles I'll post another video.
Wow! It sounds smoother than I thought it would!
the starter is kinda big to lug around.
retard the port chain a tooth or two, see if it cranks easier.
I love the way EEEEEVERYTHING shakes, well done guys I’m going to watch more!😊
Excellent
Thunderous! Congrats!!
Fit a kick start just to frighten people 👍 the chain might eat the bottom of the fuel tank if it gets slack, it was bouncing up and down already
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 👏🤘
Congratulations, been looking forward to forward to this😊
Well done all.
Awesome, love to see this and the project! It sounds snappy and awesome for a huge single cylinder! Congratulations.
Whew that girl is a nut shaker!! Awesome as hell!!❤
Wow. Hats off to you guys. Bad ass.
Driving that thing will barbeque your knee 😂