By far this is one of the best engineering projects on CZcams, if you followed the videos on its build you will know Malcolm is a true craftsman and the bike contains many innovations with regard to how it was made, all in all a stunning bike. There is no mistaking that induction roar, if you know your outboards!!
Since the exhaust ports all impinge on that exhaust cooling blade that he showed at the beginning of the video, there's no possibility of attaching 6 expansion chambers to this engine. But you're right, it would sound glorious bellowing out of 6 exhaust stingers.
Listening to Mercury 2 strokes has always been one of the sweetest sounds in the world to me. My Dad used to work on and at times race them and to me there is nothing quiet like the sound of a straight 6 “tower of power” Mark 75 or Mark 78 growling behind the boat. Those engines had soul! To me, they have always seemed like living, breathing beasts. Thanks Dad. And thanks to the builder of this magnificent 2 wheeled wonder. You sir, are amazingly talented.
Thats because they were beasts ! No, but I definitely feel you about those old straight six mercs, there is just something about the way they deliver their power that makes them so awesome !
I have a Mark 75 powerhead, and have had the idea for 5-6 years, to make an across-frame motorcycle engine from it. Surely not so powerful, but the sound would be lovely.
I started racing 🏁 boats when I was 12 years old. My grandfather was the east coast dealer for a pontoon and deckboat company, and he stuck me in a 14' kneeler pickle-fork hydro with a big black and chrome I6 on alcohol with a couple drops of nitromethane just for good measure!...lol my uncle Dick was the engine builder and tuner. My gramps was in tight with the Kiekhaefer family. Some big wigs would come and visit our lake property, and we would try different propellers, gear cases, powerhead's, and stuff like that. We weren't lake X type parts, but we were close!..lol Our factory 150hp was around 290-325hp, depending on altitude and air quality! The strongest crank ever! The adults did everything but pilot the boat, that was my only responsibility, don't crash the boat, was mine!..lol...from Wyoming USA 🇺🇸 👋🤠
@@billallen4793ive never seen a strait 6 merc produce much over 200hp. its a crossflow for heavens sake! thermal loads are tremendous. hell a 2.5 merc needs a re-ring every 20 hours in its factory 280hp guise
I am 68, and started out in the glorious 2-stroke era. This is wonderful. To hear and see this machine in the flesh would be quite an experience ! Congratulations on a job excellently done ! Trinidad & Tobago. West Indies.
My first motorcycle ride was a 1966 Suzuki 100 my brother bought with Paper Route money. He never plated it and rode it on the road, he used it as a Trail Bike. There were none at the time, they hadn't even invented the Scrambler yet (on road bikes converted to off road with High exhaust pipes and more aggressive tread tires). So they would take the front fender off due to mud buildup and they took the muffler off because it would bottom out. I rode it through our back yard. A couple of years ago I bought a Suzuki TC100 just so I could hear the motor and smell the smoke and relive a little of the past.
@@fukhue8226 A similar story with me in 1965, my first bike was a 1965 BSA Super Bantam 175cc two-stroke, it was not my first choice at the time, I had visited Kings Motorcycles before in Leeds, Yorkshire and picked out a second-hand 1961 Royal Enfield Crusader 250cc, but needed my dad's signature to purchase it as I was under 16 years old, unfortunately, when my dad came to see the 250cc Crusader he said it's too big for you, we'll look somewhere else, so then we went to a BSA dealership and dad said that's more your size, I said, dad that's a 175cc Bantam, in an embarrassed tone, he said it's that one or nothing, so I settled for the 175cc it was definitely better than nothing! 👍😊
I have an old formula V (VW) chassis buried in my garage and a tool shed full of 40hp outboard motors. Rather than rebuild a really old vw motor I’ve been inspired to get one of those 40hp, 2 cylinder, 2 cycle, water cooled motors mated up to the vw trans, clutch and flywheel. I’m 76 and everyone is trying to take the fun out of life by selling off anything I have that moves. I started this journey at the age of 14 with a 1.5 hp Briggs and Stratton motor hooked to a bicycle using angle iron from a for sale sign across the street and about 6 coffee cans full of nuts and bolts that my dad had collected. It took me a while to the gear reduction right but finally did and had a blast. No brakes, a frame with the stiffness of a wet noodle and 1/2” vee belts and the biggest vee belt pulley Sears catalog had, a 12” then through a Jack shaft. Top speed was close to 25mph. I had a custom 1/2” galvanized steel pipe exhaust, straight through, no muffler. Ram air induction ( at 25 mph with me sitting in front of the motor I doubt if there was much ramming going on. It was fun then, it will be fun this summer. Not quite as impressive as 48 cylinders but we all have our limitations.
Very cool machine you have created! Sidecar racer Eric Parkinson fabbed a Crescent Marine racing engine, a 500cc two-stroke triple into his sidecar. It managed about 85 mph average at the TT in 67'. He endlessly chased overheating issues & later discovered the water jackets around the cylinder were intentionally designed to be small because the engine was intended to only ingested fresh water from beneath the vessel.
Unmistakably Mercury! Having owned Mercury powered boats for years, the sound was instantly recognisable. That's the best sounding 2-stroke bike I have ever heard.
Outboards are normally measured in GPH(gallons per hour). The rough benchmark a few years ago was 10% of the horsepower is the GPH. A 50hp outboard will drink 5 gallons an hour, at a good throttle setting :)
I can't imagine how satisfying it must be to finish such a cool project. The bike is amazing, the videos are interesting and informative. Well done all round and thanks for sharing. Rubber side down!
my lord thats good... that sound when its paired with a road going load in godly, thank you for doing this an showing us whats possible when you want it bad enough m8
this is incredible! i loved the sound of that motor ever since i was a kid. black outboard motors with orange and yellow stripes were everything back in the day.
Wow. This just turned up in my feed. What a fantastic idea. Never seen anything like it, but I love it. And now I have to watch all the build videos too.
It's a very satisfying feeling, building a special from the ground up, being the test pilot, and finding out that it all works ! I've built a couple of VW aircooled bikes, using the car transaxle modified to foot change and hand clutch. First one was a hard tail chopper, with a double cradle frame and my latest one is a box section spine frame with Z1300 forks (beefed up) and rear shocks for a Rocket 3. See VW bike for 7 foot rider, under Celia Ketley (my beloved wife who passed away nearly three years ago). I'm Daryl.
Thank goodness you’re back. I was missing your channel. Stuck in a rut at the moment after losing my workshop during Covid so instead of designing and building things myself I am reduced to watching others. Hopefully once the big tour, round the world in 100days, is over I can get back to building RoToR race cars for fun. Heading for Sydney today strangely and hoping to catch up with Elwyn Bickley. Keep up the good work.
Sir, it is just delightful to see you back with this unique beauty. Last I saw, you'd basically put 'er all together, unregistered, and no paint yet. You gifted us with a brief sample of the explosive cacophony of metallic chaos* that the 2-stroke V6 releases upon starting. I believe I left a comment attempting to somehow evoke the sound, and no doubt fell short... (A brief interlude) Now, here's a proper Motorcycle! Look at that lovely beast! It's...huge! Well, you won't have any shortage of power. I really like that there's no an attempt to fit into any currently established genre like "cruiser" of "sportbike" or "adventure tourer". Its just a very generously proportioned "draw-a-picture-of-a- motorcycle" motorcycle. With a gloriously batsh*t engine. Speaking of which, it sounds really nice, especially when the revs climb and it starts to smooth out. I have to admit I'll agree with some of the other comments urging you to put some expansion chambers on it, but designing and fabricating 6 big chambers and making them fit would be a major project! Awesome bike, thanks for showing it to us. Keep us in the loop, and stay safe!
What a fantastic sounding ride! I can't imagine the amount of work and skills needed to achieve such a masterpiece of engineering. I have to check the building videos. Thank you YT algorithms! It's not everyday...
I clicked because I wanted to see how you adapted a marine engine to a motorcycle. Putting the power to the rear wheel, cooling system all the demand engineering, let’s go!
Very cool build. I wish I had more info and I wish you would have shown a photo of the engine sitting in the bike as well as giving it a good scream run so we could see how it responds and sounds. Pretty amazing build
Thats absolutely beautiful, a work of art bro, I want one more than anything else, I love 2stroke and Mercury are my favorite boat motors, that gearbox doesn't know what hit it lol, certainly not a V twin 4stroke engine. It actually sounds slightly like a 4stroke with the V6 growling giving it a cross plane crankshaft effect, I really need to show my mad mechanic brother this, and hopefully I can find from start to finish, thank you awesomely for sharing your great experiments and experiences.
Well done, I can recall watching Kim Newcombe riding his Konig powered "outboard" engine in the early 70s just prior to his tragic crash at Siverstone.
Interesting.....I recall a friend of a friend back in the late sixties who was building a drag bikw with a 4 cylinder inboard boat motor into an old Sumbeam chassis.
Brilliant ambition meets brilliant craftsmanship! I'd like to see three things - a fairing, tall gearing and some space to let it stretch its legs and show the true potential!
Occasionally CZcams algorithm directs you to something interesting, amazing bike in every way and made in Australia is the icing on the cake.
couldnt agree more. such a cool build.
By far this is one of the best engineering projects on CZcams, if you followed the videos on its build you will know Malcolm is a true craftsman and the bike contains many innovations with regard to how it was made, all in all a stunning bike. There is no mistaking that induction roar, if you know your outboards!!
Another name for you to look up, Allen Millyard. Be prepared to be blown away!
Exactly @@DiHandley
Why would you waste such expertise and skill on such a monstrosity?
@@johnsmits7265 because you couldn't do it
We need to hear the bike with 6 expansion chamber exhausts. That would be even more awesome.
Since the exhaust ports all impinge on that exhaust cooling blade that he showed at the beginning of the video, there's no possibility of attaching 6 expansion chambers to this engine. But you're right, it would sound glorious bellowing out of 6 exhaust stingers.
That would be hectic! pretty much have to cut up and redesign the whole engine for that, and it would be scary to ride with all that power!
I like the quiet power.
@@larrynorsworthy8582"Quiet" 😂
@@greatestytcommentator didn't seem loud. 😕
Now I know why I still have that 175hp 2 stroke Mercury outboard sitting out by my motorcycle sheds :) Fantastic build.
Mate, congrats on getting that thing not only finished, but registered as well, that's quite an accomplishment; and absolutely amazing.
Listening to Mercury 2 strokes has always been one of the sweetest sounds in the world to me. My Dad used to work on and at times race them and to me there is nothing quiet like the sound of a straight 6 “tower of power” Mark 75 or Mark 78 growling behind the boat. Those engines had soul! To me, they have always seemed like living, breathing beasts. Thanks Dad. And thanks to the builder of this magnificent 2 wheeled wonder. You sir, are amazingly talented.
Thats because they were beasts !
No, but I definitely feel you about those old straight six mercs, there is just something about the way they deliver their power that makes them so awesome !
I have a Mark 75 powerhead, and have had the idea for 5-6 years, to make an across-frame motorcycle engine from it. Surely not so powerful, but the sound would be lovely.
We used to race a pair of Mercury straight sixes back in the 70s. The smell of 2-stroke exhaust still takes me back to those days.
I started racing 🏁 boats when I was 12 years old. My grandfather was the east coast dealer for a pontoon and deckboat company, and he stuck me in a 14' kneeler pickle-fork hydro with a big black and chrome I6 on alcohol with a couple drops of nitromethane just for good measure!...lol my uncle Dick was the engine builder and tuner. My gramps was in tight with the Kiekhaefer family. Some big wigs would come and visit our lake property, and we would try different propellers, gear cases, powerhead's, and stuff like that. We weren't lake X type parts, but we were close!..lol Our factory 150hp was around 290-325hp, depending on altitude and air quality! The strongest crank ever! The adults did everything but pilot the boat, that was my only responsibility, don't crash the boat, was mine!..lol...from Wyoming USA 🇺🇸 👋🤠
@@billallen4793ive never seen a strait 6 merc produce much over 200hp. its a crossflow for heavens sake! thermal loads are tremendous. hell a 2.5 merc needs a re-ring every 20 hours in its factory 280hp guise
I am 68, and started out in the glorious 2-stroke era.
This is wonderful. To hear and see this machine in the flesh would be quite an experience !
Congratulations on a job excellently done !
Trinidad & Tobago.
West Indies.
My first motorcycle ride was a 1966 Suzuki 100 my brother bought with Paper Route money. He never plated it and rode it on the road, he used it as a Trail Bike. There were none at the time, they hadn't even invented the Scrambler yet (on road bikes converted to off road with High exhaust pipes and more aggressive tread tires). So they would take the front fender off due to mud buildup and they took the muffler off because it would bottom out. I rode it through our back yard. A couple of years ago I bought a Suzuki TC100 just so I could hear the motor and smell the smoke and relive a little of the past.
@@fukhue8226 A similar story with me in 1965, my first bike was a 1965 BSA Super Bantam 175cc two-stroke, it was not my first choice at the time, I had visited Kings Motorcycles before in Leeds, Yorkshire and picked out a second-hand 1961 Royal Enfield Crusader 250cc, but needed my dad's signature to purchase it as I was under 16 years old, unfortunately, when my dad came to see the 250cc Crusader he said it's too big for you, we'll look somewhere else, so then we went to a BSA dealership and dad said that's more your size, I said, dad that's a 175cc Bantam, in an embarrassed tone, he said it's that one or nothing, so I settled for the 175cc it was definitely better than nothing! 👍😊
I have an old formula V (VW) chassis buried in my garage and a tool shed full of 40hp outboard motors. Rather than rebuild a really old vw motor I’ve been inspired to get one of those 40hp, 2 cylinder, 2 cycle, water cooled motors mated up to the vw trans, clutch and flywheel. I’m 76 and everyone is trying to take the fun out of life by selling off anything I have that moves. I started this journey at the age of 14 with a 1.5 hp Briggs and Stratton motor hooked to a bicycle using angle iron from a for sale sign across the street and about 6 coffee cans full of nuts and bolts that my dad had collected. It took me a while to the gear reduction right but finally did and had a blast. No brakes, a frame with the stiffness of a wet noodle and 1/2” vee belts and the biggest vee belt pulley Sears catalog had, a 12” then through a Jack shaft. Top speed was close to 25mph. I had a custom 1/2” galvanized steel pipe exhaust, straight through, no muffler. Ram air induction ( at 25 mph with me sitting in front of the motor I doubt if there was much ramming going on. It was fun then, it will be fun this summer. Not quite as impressive as 48 cylinders but we all have our limitations.
@@yelyab1 Yes ! That was more fun than any ole' Hayabusa !
Very cool machine you have created! Sidecar racer Eric Parkinson fabbed a Crescent Marine racing engine, a 500cc two-stroke triple into his sidecar. It managed about 85 mph average at the TT in 67'.
He endlessly chased overheating issues & later discovered the water jackets around the cylinder were intentionally designed to be small because the engine was intended to only ingested fresh water from beneath the vessel.
For those moments when you really want a boat yet realize how much more visceral a bike is .
Stunning !!! ❤ it
I have both 😂 I live in my boat though
Unmistakably Mercury! Having owned Mercury powered boats for years, the sound was instantly recognisable. That's the best sounding 2-stroke bike I have ever heard.
What an absolute beauty, sounds phenomenal and there must be a lot of torque. I' suspect we should politely avoid mentioning fuel economy 😁
I own V8s, and when people ask me about fuel economy I politely tell them that if I wanted a car with good fuel economy, I would’ve bought one.
Outboards are normally measured in GPH(gallons per hour). The rough benchmark a few years ago was 10% of the horsepower is the GPH. A 50hp outboard will drink 5 gallons an hour, at a good throttle setting :)
I can't imagine how satisfying it must be to finish such a cool project. The bike is amazing, the videos are interesting and informative. Well done all round and thanks for sharing.
Rubber side down!
A two-stroke 2.5 litre V6 in a motorcycle. I can't decide if that's genius or insanity LOL Impressive!
I thought the same ..all of the above 😁
This type of lunacy fits right in with my own crazy ideas. But mine are just ideas, this is a reality.
Congratulations, Sir! The concept; the sound, the work and craftmanship - everything is just so nice!
That sounds absolutely perfect. I'd watched some of the early build videos then forgot all about it. Great to see how well it turned out.
Fantastic to see a project with a successful conclusion! 👌 The last 1% is by far the hardest, when the end is in sight. Congratulations. 👋
What a truly "sick" project and intoxicating sound - thanks for sharing
my lord thats good... that sound when its paired with a road going load in godly,
thank you for doing this an showing us whats possible when you want it bad enough m8
this is incredible! i loved the sound of that motor ever since i was a kid. black outboard motors with orange and yellow stripes were everything back in the day.
The mercury 2stroke v6 is one of the most beautiful sounding engines...I am stunned and amazed what you've done with it. So cool
Wow. This just turned up in my feed. What a fantastic idea. Never seen anything like it, but I love it. And now I have to watch all the build videos too.
Wow! What an amazing sound! I bet this engine makes some very smooooth power!
It's a very satisfying feeling, building a special from the ground up, being the test pilot, and finding out that it all works ! I've built a couple of VW aircooled bikes, using the car transaxle modified to foot change and hand clutch. First one was a hard tail chopper, with a double cradle frame and my latest one is a box section spine frame with Z1300 forks (beefed up) and rear shocks for a Rocket 3. See VW bike for 7 foot rider, under Celia Ketley (my beloved wife who passed away nearly three years ago). I'm Daryl.
excellent, and sorry to hear about your loss
She moooooves bloke!! Kudos for the master engineering into this masterpiece! I wish you total enjoyment of your work for many years to come!
Looks like it has lots of power, handles well and that exhaust tone is really cool. Great job! 👍👍👍
Less power than a R1 Yamaha @ 998cc
What an amazing machine you created! I would love to ride on something like this!
Such unique sound , amazing bike cheers from Minneapolis Minnesota. She's a beauty and a beast!
She handles well too!
Brilliant work
Thank goodness you’re back. I was missing your channel. Stuck in a rut at the moment after losing my workshop during Covid so instead of designing and building things myself I am reduced to watching others. Hopefully once the big tour, round the world in 100days, is over I can get back to building RoToR race cars for fun. Heading for Sydney today strangely and hoping to catch up with Elwyn Bickley. Keep up the good work.
Awesome project completed to the highest standard. Congratulations!
What a brilliant sound it makes. And well done all round.
Awesome! And, I dig the gear whine heard on the fly-bys! Definitely a cool build!
I'm glad to see it finished and on the road, nice work.
IT thought You Might be gone fore ever! awesome to see it finished.
Sir, it is just delightful to see you back with this unique beauty. Last I saw, you'd basically put 'er all together, unregistered, and no paint yet. You gifted us with a brief sample of the explosive cacophony of metallic chaos* that the 2-stroke V6 releases upon starting. I believe I left a comment attempting to somehow evoke the sound, and no doubt fell short...
(A brief interlude)
Now, here's a proper Motorcycle!
Look at that lovely beast!
It's...huge! Well, you won't have any shortage of power. I really like that there's no an attempt to fit into any currently established genre like "cruiser" of "sportbike" or "adventure tourer". Its just a very generously proportioned "draw-a-picture-of-a- motorcycle" motorcycle.
With a gloriously batsh*t engine.
Speaking of which, it sounds really nice, especially when the revs climb and it starts to smooth out. I have to admit I'll agree with some of the other comments urging you to put some expansion chambers on it, but designing and fabricating 6 big chambers and making them fit would be a major project!
Awesome bike, thanks for showing it to us. Keep us in the loop, and stay safe!
Beautifully crafted and sounds great.
Amazing engineering and a credit to you Malcolm your very smart bloke , I bet that thing has bucket loads of torque
Beautiful bike and awesome engineering,well done Malcolm 👏🏻👏🏻👍👍
Damn what a piece of work. I'll be sure to check out your vids on building this GSX
Astonishing ! What a neat ride. Thanks for showing us.
This just landed in my suggested videos. What an amazing bike! Well done Sir.
Subscribed immediately.
The coolest thing in a long time on CZcams
What a fantastic sounding ride! I can't imagine the amount of work and skills needed to achieve such a masterpiece of engineering.
I have to check the building videos. Thank you YT algorithms! It's not everyday...
that exhaust sound is DELICIOUS :) it reminds me of a Kawasaki KZ1300 6 cylinder motorbike !
Stunning work! Jim Goose gives the nod.
I clicked because I wanted to see how you adapted a marine engine to a motorcycle. Putting the power to the rear wheel, cooling system all the demand engineering, let’s go!
freaking legend im so glad youtube recommended this to me.
That thing was wanting to get turned loose. It sounded like a lot of torque , the ultimate cruiser. great job.
That engine note sounds amazing and could become quite addictive I'd imagine 👍
Awesome build, will go back and watch how you did it. I would be interested to see it on the dyno. Great work!
Thanks for sharing what u built! Ive often wondered if an outboard could be used to power a different vehicle. Now I know it can and very well. 👍🏻
Hell yeah man, been looking forward to this video. Looks like it pulls like a freight train. Good job man, that motorcycle is an engineering marvel.
Sounds absolutely LOVELY! :)
Very cool build. I wish I had more info and I wish you would have shown a photo of the engine sitting in the bike as well as giving it a good scream run so we could see how it responds and sounds.
Pretty amazing build
Wow! What an incredible machine!
Thats absolutely beautiful, a work of art bro, I want one more than anything else, I love 2stroke and Mercury are my favorite boat motors, that gearbox doesn't know what hit it lol, certainly not a V twin 4stroke engine. It actually sounds slightly like a 4stroke with the V6 growling giving it a cross plane crankshaft effect, I really need to show my mad mechanic brother this, and hopefully I can find from start to finish, thank you awesomely for sharing your great experiments and experiences.
New here and impressed with the customization/engineering 👍🏼
Well done, I can recall watching Kim Newcombe riding his Konig powered "outboard" engine in the early 70s just prior to his tragic crash at Siverstone.
Sounds wicked very cool bike great craftsmanship man
There's quite a whine coming off that bevel box, but she seems to run well. Good work.
Ah that is what the gear noise..thanks
What a sweet sound! Amazing!
Bloody brilliant, really unique and sounds great. Well done.
Between you and cookie I wouldn’t be surprised with any crazy ideas that the pair of you could come up with
cookie?
I think the sound is wonderful and the power band works super well, I would love to see a prop spinning somewhere,
Sounds insane man wowowowwyou did something amazing
This has got to be the first two-stroke motorcycle video I've seen in which the front wheel never left the ground.
Brilliant Mal, you're fast approaching an 'Allen Milyard" level of madness. Haha, love it.
I imagine riding that bike puts a grin on your face that won't quit. It looks like insane fun.
Amazing project. I hope Millyard sees this build
The sound that satisfies 👍
Wow so clean! On piece of engineering at its very best!
Wicked sound. Love it.
id love to see this things absolute top speed ... nice work and clearly capable
I've always wondered if you could do this! So cool!
Welcome back. More please
That’s awesome mate congrats
Absolutely amazing 👏 well done sir
Wel done. Proud Australian, great engineering and thanks for recording it. I know it would have been easier to not record it and do it privately.
Nice. Now we just need to arrange a meet up with you and Alan Millyard with his Dodge Viper V10 motorbike. That would be epic.
Interesting.....I recall a friend of a friend back in the late sixties who was building a drag bikw with a 4 cylinder inboard boat motor into an old Sumbeam chassis.
Awesome, well done!
That sounds fantastic!
Fabulous.
Sounds great too.
Brilliant ambition meets brilliant craftsmanship! I'd like to see three things - a fairing, tall gearing and some space to let it stretch its legs and show the true potential!
Love it mate. Beautiful 👌
brother i thought it was electric its so darn quiet and smooth wow! sweet bike !
unreal mate, well done!
That's a well engineered conglomeration you built there mate.
Really cool build
congratulations. love to see it.
Awesome. Just plain awesome.
❤ the exhaust note!
You are an absolute legend
beauty of a bike mate
Wow, what a damn good sound!!!😍😍🥰
Sounds amazing
Very nice piece of kit
That is awesome. It would have been a very interesting project to work on.
You are crazy. In a good way. Awesome!