Good old harley davidson pan head design. The reason they invented Loctite since 1903!

BECAUSE OF SCAMMERS TRYING TO IMPERSONATE ME AND TELLING PEOPLE THEY WON, ALL COMMENTS ON THIS VIDEO WILL BE APPROVED BY ME BEFORE THEY WILL BE VISIBLE. IF THEY DON’T SHOW UP RIGHT AWAY, BE PATIENT, THEY WILL. Check out www.Stirlingkit.com to see all the engines they sell. This engine specifically is: bit.ly/3BdznPm. Have a great weekend all you beautiful people!

This is coolest damn thing I’ve seen in a very long time. I’m an aircraft mechanic by trade, and my motorcycles are 45deg vtwins, so this is right up my alley. Fun fact, a Harley twin like this is literally a radial aircraft engine with 5 cylinders cut off. Apart from the cam layout, they’re exactly the same. This is the ultimate desk trophy, conversation piece, garage toy, what an incredible device to display and run and show off. Thank you so much for digging into it, showing the innards, walking through the troubleshooting on reassembly, and giving us a deep dive into this beautiful little engine. I can’t wait to have people crowd in my office to see it run.

As a kid I was always taking things apart just to see how they worked. The cool thing is that I could usually put them back together . This is a great example of how we, who are mechanically inclined, of how we learn. This is awesome!

What an awesome little replica! The attention to detail in nearly replicating how the full sized Pan Head internals work is remarkable.

this was probably one of the coolest videos I've seen on small engines and the operation, the theory, assembly, reassembly, addition of components (the base). it just reminded me of my school days and I had so much fun watching you do this. the editing on the video was incredible the slow motion the notes even when you made a mistake you pointed it out and that was great man that was awesome. keep it up. this was the first time being on your channel so I'll keep watching as long as you keep making stuff like this. loved the engine size. its so neat. you can put it into almost anything. I don't think you could put that much of a load on it though with those rubber o-rings but I love how you troubleshot the the timing and fuel ratios over all great video, great little engine. I wish I could afford it I'll definitely show this video to anybody interested in how a/an I.C.E. engine works. ill leave with a joke In a garage, where a famous heart surgeon was waiting for the service manager to take a look at his Mercedes, there was a loud mouth mechanic who's removing the cylinder heads from the motor of the car. He saw the surgeon waiting and lured him into an argument. He asked the doctor after straightening up and wiping his hands on a rag "look at this car I'm working on, I also open hearts, take valves out, and grind them down put in new parts and when I'm finished this baby will purr like a kitten so how come you get the big box when you and I are doing basically this same work" the surgeon very commonly leaned over and whispered to the loud mouth mechanic"try doing it with the engine running."

Taking something apart to learn is a great teaching experience. Putting it back together offers an even greater set of lessons! I liked the way you talked through every challenge you encountered. Great video and editing work, too! You have a great collection of talents and mentoring skills!

Unbelievable precision and craftsmanship. I worked with small 4 stroke engines with radio control airplanes when I was younger, I’m 88 now. Enjoyed your video.

I loved listening to you work through the timing solution. Took me back to when I rebuilt my 1974 Honda XL 250 as a youngster - such a joy to finally crack the code & fire up the beast :)

That really is the coolest thing! Would be interesting to make some threaded exhaust headers with a larger I.d. to bring out some more 'mini thump' like big v twin.. but smaller!

Since finding your channel I have been binge watching your videos and have to say your channel is one of the best, IF not the best one on KZfaq. Your Knowledgeable in each and every video and the way you explain things, not to mention your filming is SPOT on. I have seen these small engines before but seeing you tear it down and put it back together was awesome. I am glad I came across your channel and for that I Thank You!

Thank you! That was the coolest video I have seen in a long time! I love the fact that you made mistakes and walked through correcting it.

I love small engines, especially Harley clones! And I love taking old engines and renewing them for use again, keep coming up with these great video’s!

I took my brand new mini bike engine apart when I was young. It took a day or two to reassemble I understand that the first 65 years of childhood are the most fun! Great vid! 😎

Very cool. Thanks for taking the time to video all of this!

This is an excellent video, it was like watching a movie, it has a little drama, suspense, and the happy ending. I loved how you took the time and went step by step showing the engine breakdown and reassembly. I may have just added one thing on the reassembly since you had it all apart, I wish you would have machined little timing marks on the gears for future reference and made it even easier for the simple minded to put this engine back together. Awesome job showing how to figure out the timing instead of editing it out.

As you were cheerfully removing the valve collets I was mentally yelling "No! No! They'll fall through!", but, of course, you were intending to dismantle the engine regardless, so my concern was wholly unfounded. I hope that the lucky winner is someone who actually makes videos, and that we'll get to see what use the engine is put to. It could drive a model cyclecar, motorcycle or boat, or even run a tiny but functional generator, sawmill or circular saw...

Whenever I get a notification about a new video uploaded by you, it fills my heart with joy

You really showed how this model is a great scaled-down version. I loved seeing the inside, and how remarkably similar everything is to my HD 45. Thanks!

The knowledge that you have as a mechanic had to come from a long time kudos to you bud

I would've killed for stuff like this as a kid. These would be so great for kids interested in how things work or as a way to get kids interested in mechanical devices/how things work

I've loved Harley Davidson Panheads since I was 10 years old when my brother in law came home from Vietnam he got a 1949 chopper. Had many Panheads all my life. I was a machinist until my back decided to retire me from the best job I've ever had. Many dreams of building an engine such as this, so one could imagine when this little engine came out I've been in awe of it Unfortunately at this point I'm working with a very small fixed income even though this engine is extremely reasonably priced for it's engineering quality. To purchase one now is not much different to me than purchasing a real one. Long story short to win this engine would truly be a blessing for an old machinist. I've seen many different videos about these engines but yours is by far the most informative and interesting watched it many times and will probably watch it again...haha. If you should choose me I would use it in a scaled down replica chopper like I had when I was in my 20's. Thank you for the wonderful video and opportunity to possibly own a dream come true. Thanks again... Tom

Thorough, clean, descriptive and nonsensical without any fluff or Who ha.. "Just the facts Sir" "Your" timing is spot on..

I had to send this video to my brother, I had a 1950 panhead and he had a 1956 panhead that he still has, I said this guy looks like we did back in the day when we was tearing them apart and didn't know what we was doing, but like you we always manage to get them back together and down the road, thanks for sharing

Well, based on recent posts on this channel, a good motto for StirlingKit might be: _More fun than playing with your Johnson!_

This thing sounds so cool, would be awesome to build a custom chainsaw to power with it! Would mimic the motorcycle world almost, 2 strokes vs Harley v twins but for cutting wood

That is amazing! The amount of detail and precision is unreal. It is so intriguing to me it can be miniaturized from the actual size and then run. Amazing engineering. Thanks for the awesome video sir.

this mini pan is awesome. there was definitely a lot of troubleshooting from the creator in getting it all dialed in. thanks for taking it apart, I really wanted to see the mechanics of this things.

Probably the neatest little engine I've ever seen! Would definitely be a cool conversation starter! Only thing that could make it better is if it was a Johnson 😏😂 Side note: I've learned a lot in life by taking things apart and figuring out how they work. It's what led me to wanting to fix and make stuff with my hands. Now, I'm a mechanic and a carpenter and I couldn't be happier. Great advice at the end!

I have absolutely no use for that engine, but it would look awesome on my shelf and would make a great conversation piece. Curious what others would actually use it for. Great job.-Ed

Sweet little engine. I took apart and rebuilt my first Harley when I was 14, ( 56 now ) and I've gotta say, it looks like this one is built better, lol. Nice job gettin her back together and running! ✌

Always going above and beyond just showing how it's done John. I love watching your videos since you aren't afraid to show when you mess up, and are always explaining how you are doing things. Keep up the great videos and I'll keep watching them.

looks like the is a starter mount hole in the casing.

Did you know Harley Davidson started out as a single cylinder? And when they switched to a two-cylinder engine they were too costly to produce where the pistons were on their own crankpins, so they opted for the cheaper single crankpin thus giving it a 45% offset firing order. Then to top it off they were too lazy to make a new spark system to fire the cylinders independently so both of them fire at the same time that gives Harleys that very distinctive noise bang - bang - pop, the pop being from the second cylinder firing unburnt gasses. But the noise was so distinctive they tried and failed to trademark it in 1994.

That is an awesome looking engine. The fact that you took the time to break it down and put it back together. Then to build a better way of starting it is awesome. Thanks for this awesome video.

Fascinating video. I've been a nut all my life about how things work. Was always taking things apart and figuring out how to put them back together. Got my butt beat good when my mom caught me taking my grandfather's mantle clock apart. Had gears, cams and bearings all spread out on a bench in the garage. Managed to figure out how it worked and got it all back together though. Every mechanical toy I ever got ended up on that same bench. Grew up to build 13 harleys and several hot rod cars. Was a machinists mate in the US Navy keeping ships running. Worked for a railroad repairing railcars and locomotives. I'm retired now and have a sweet Harley and a righteous Mustang in the garage.

This engine would work excellent in an RC Boat. I have a couple already, but they might be too small. I bet it would sound good with some sort of dedicated exhaust. It sounded pretty good once you got the timing set again, I wonder if it would perform any better advanced by a tooth. Car engines typically run from 8 or so degrees before top dead center all the way to 30 degrees. I'm curious to know how many degrees its set to know vs where it would be 1-2 teeth advanced. Based on it not running after not having it right, it might be quite a bit of advance per tooth.

This was one of the coolest engine teardown videos I've seen! I mean, not quite as fun as watching you play with your Johnson, but entertaining nonetheless!

Hello again, Panhead Dave here, my son Ian and Cindy my wife,(she's the one that gave me my panhead for my 19th birthday) were blown away when I showed them your engine, we all agree it's a work of art, and they both would hope that you would consider that I might be worthy of the prize you are offering, my appreciation of these classic motorcycles has made them members of our family,, and I've been dedicated to keeping these machines alive and visible to others who appreciate the aesthetics and all that goes with owning and regularly riding antique works of functional art, regardless of outcome, thank you again for sharing this beautiful machine with all of us, db

Been riding scooters (mostly Harleys) for +55yrs. Still have all of my "parts" in tact. Ha. Saw a smaller version decades ago as a Harley promo that used glow plugs and ran on RC fuel mix. Smelled bad but ran great. Been hoping for something like this as the only other I've seen was custom made by a man and not for sale. I think Panheads were the most beautiful motor Harley ever made. The 88 Evo was the best for longevity. I just retired from 2 wheels as I felt I was losing just a bit of my edge and could no longer protect my wife as she deserves. I couldn't keep her off the back. Ha. Thanks for the tear down. Glad you figured the gearing and got timing going well. I may try to spring for one of these now that my scooter days are behind me. Thanks again.

Bartender asked what the V-twin owner wanted to drink. The V-twin owner responded "RUM RUM RUM RUM RUM RUM RUM"

Suddenly you're playing with someone else's Johnson

You are a mechanical genius to be able to do all the things you do in all of your videos from this super small engine to working on your old caterpillar dozer and other farm equipment. Fantastic job well done.

I just started watching your channel and I love the variety of the things you build or repair. I think you are my favourite you tuber! I can wait to see what's next. I'm watching a lot of your old videos in the meanwhile. Keep up the great content. Thanks

Excellent video! There is nothing like taking apart an excellent running engine and going through the process of getting it to run again. We cannot leave well enough alone- "If it ain't broke don't fix it!" I can imagine in 1000 years someone will unearth this engine and be amazed at how it was built. Internal combustion engines make real power ,heat,smell and noise, you just can't get that from a battery and an electric motor. It's like that little Harley has a soul !

Good evening sir, Wow what a neat little engine. It’s amazing how you took it all apart and put it all back together and figured out the timing you are truly a engine wizard. The way you illustrated everything was perfect spot on sir. Another thing you did not lose any parts that in itself is amazing. Just watching all the moving parts was so cool. I tinker also with fixing motorcycles and to see you take it all apart just made sense. Thank you for making this video and educating us on this little amazing engine. Keep up the great videos and have a great day! Mark

That little thing is awesome. Being able to see how the spark timing relates to the crank, cam and valves is a great learning tool.

That is a cool little engine. I like how you went through what's missing in the instructions. how to build the base. and some great trouble shooting in real time, the issues and the fixes. very informative and a great watch. Held my attention the whole time. Thank you.

Stumbled across this video and it's amazing how detailed you are! I have been into electric motors personally, as a means of transportation and as I'm 61 coming up on 62 possibly a new career opp. Learned more about internal combustion in your video than in years of not really thinking about HOW they work. Be cool to have a slightly larger, say 50cc, of this for a bike build! Have a great day and keep making these vis!!

Great video! Thanks for screwing up the initial reassembly 😬. That's how I always do it. Your logical trouble shooting and straightforward explanation was easy to follow. I now have a good understanding of 4 stroke timing. Now if I can just get this coffee maker back together....

Just like a surgeon - good explanation on prognosis and treatment and fine technique on procedure. The brothers Davidson and William Harley would be proud.

The sound of that motor takes me back to when I was a kid and it all began...great video..thanks for the memories .

It's a big step up from the old clear plastic V8 model engine I had when I was little that they recommended using vegetable oil for lubrication which eventually ate the plastic and caused it to seize.

Me and my son watched this video. He is a senior in high school. This video inspired him to want to work on Harley Davidson motors after he graduates. Thanks it was a great video. Hopefully my son becomes a great mechanic.

I've been looking at this engine for a while now, it's absolutely beautiful and the workman ship is beautiful. I'd love to add one to my collection

Definitely a great video! You can learn quite a lot about the mechanics of an engine by watching your videos. I seriously hope you keep on making those and let us be part of your channel!

Good job troubleshooting that gear train. The panhead motor had a distributed where the ignition wires come out that cover is what it looks like and the opening behind it is for the generator

Your calmness and skillset is topnotch with all those tiny screws .beautiful job

It's ok to change plug wires from either cylinder. Harley 45' V twins coil discharges twice. One spark is always on its siblings' exhaust stroke. Old school is cool! These poweplants were designed and developed 100+ yrs ago. Common crankpin, and all. No crankshaft, so to speak, flywheels! I've always wanted to use one on a Beechcraft, but a scale engine would be perfect on an R/C aircraft. Thanks for sharing man.

After watching with my son. We came up with the idea of having a class at school (where I work) and have them do the same thing as you did. As in out of box start and run do a tear down and back together and make it run. Thank you for this wonderful educational video.

I love this little motor. Nice work tearing it down...and catching your two engine component edits...this would be perfect building a scale model for my Road Glide. What!🤟🏻

Yes! Just ordered one for the RC motorcycle I’m building, should be interesting to see how much power it can actually deliver. Valve float will be a likely weak spot😎

Something like this would be amazing to have, its been my passion to work on engines and this would be a perfect starting point. I've been a tinkerer all my life and I've always loved taking things apart and putting them back together again. It would be a blessing to have this wonderful engine.

So, the comments will determine who the give-away goes to..sounds like fun. I actually thought about buying one of these to give to my neighbor friend here in So. Cal. He has two Harleys and I know he would just love the heck out of this thing..so, if you gave it to me, I would give it to him. The way your video is, it really simplified things for me, the way you slowed down to show what you were doing AS you did it ; taking apart and putting together, I learned a lot. I'm a machinist and at the start of the video I saw you making that base and I thought, why doesn't he just use a thicker plate so he can counter-bore the bottom for the SHCS's. So it was pretty cool to see, later in the vid you made a new base..I thought, yea, perfect! Also, where the ground wire is attached, right below that is what looks like about a .750 hole with two small holes beside it, I believe that is for a little starter motor if you want to avoid those drill motor issues. But that was a good idea and a good fix, the way you press fit those pieces together. So, I'm wondering where I put my home address for your convenience when you're sending out that give-away. Thank you and thank you in advance from my neighbor Rick.

Wicked!!! I was looking for a tear down and rebuilt video for 04 fatboy 88CI...Thanks John I owe it all to you!!!

I really enjoyed this I spent a lifetime repairing reconditioning tuning these engines and see it in miniature is quite amazing I’d like to build a little bike to go with it. Keep up the good work mate love your content👍

Awesome replica.just need to make a frame and tank and just keep going.thanks for the demonstrations

Well that's just to cool for school, being a machinist for decades I know what has been put into it. Nice work also I own a 56 pan 42 years have split cases on a few😉 I can appreciate your work

Loved your vid, your very accomplished....although you called the tappit a pushrod and a few other slight glitches! They would do good to have you polish up their cut sheets...now I'm going to watch some more of your stuff. Stay well and thanks!😊

Even if it didn't run again it still would bring such a smile to your face every time you looked at it!.

I am truly fascinated with the engineering detail of this mini. All things being equal, I watched a video where the person made exhaust pipes and shaped them to look exactly like Harley did. When the engine was idling, it sounded just like its big brother. It is magnificent model engine. I am really impressed.

I've been eyeballing this little panhead for a few months. Best dang video of it yet. Loved the break to check the calf. I'll get one eventually but my full size harley is sucking out all my funds right now.

Really enjoyed the video. It was more than just a video showing that it runs like most. Your video explained problems that the kit has and how to overcome them using a little bit of backyard engineering.

Never realized how simple a Harley engine was. And the model engine has the same recognizable exhaust note. I'd like to see an electric start and some blinking lights just for the hell of it!

I'm a Nuclear Engineer but also an engine/car enthusiast. This is a very cool video and mini engine that I have not seen before. When you were fixing the spark timing you set it at TDC but from a theory side of it when the spark fires the explosion in the combustion chamber takes time to fill the chamber. To get the most amount of power out of the timing, the timing is set to be advanced so the explosion has filled the combustion chamber at TDC to get the most amount of force on the piston. With the timing set right at TDC, the engine will still run but the gas mixture will not burn at the right efficiency and the engine won't produce the maximum amount of power. Also, it can affect the carburetor idle adjustment because all of the gas isn't burning in the cylinder already. So the adjustment screw won't help much because due to the spark timing there is too much fuel in the combustion chamber and the screw can take fuel away but not enough so the engine runs the same no matter how much you turn the screw. This is the problem you are having in the video. I am currently working on a Yamaha xs1100 and the carburetors are giving me a similar problem but it tuen out my idle mixture screw holes are damaged so I am not getting the response I need. This is a very good video that I enjoyed and I sent it to my father who is the one that taught me about cars and engines. He is going to be amazed at the quality and size of this engine. Thank You for sharing!

Nice n cool project dear..loved the way you explained the tear down,, reassy and especially the firing time correction part was the best..would love to have one in collection..though have some but they are cheaply made 2 stroke and runs on ether castor oil n kerosene 30 30 30 ratio n very diff to start at once .

this is by far the best video on how people are talented enough to make stuff this cool. would look great on my shelf in the living room! especially an old pan head my favorite

This little engine is the perfect coffee table convocation starter and a very handy model to walk people through how internal combustion engines work! great video!

I've looked at a lot of these little engine and by far this is one of my favorite

I like the way to got through your mistake of not marking the timing correctly. I did it on a passat tdi that dropped a valve, didn't mark the timing correctly on the crank, then spun the crank over to clean and check the bore was ok. I noticed my crank timing mark was in exactly the same place, and had to do all what you did to this engine to get it running again 🤦. Great video too, I like how your brain storming was aloud for us all to hear your though processes. I watched the whole video and it was entertaining all the way through, thank you.

The lumpy but quickened idle sound of the running engine, then you blip the throttle: the pure poetry of an XR750. You've basically got a teacup flat track racer sitting on your bench. So how cool is that? That's how cool it is!

What cool little motor, I was looking a 1/4 scale V8 and this popped up. Love it, the disassemble all that. Wonder what happened with it.

Usually you want the spark to happen a few degrees before top dead center. Usually 30 degrees BTDC.

You had balls taking it apart I don't know what your mechanic background is I've been on for 40 years I was forced in the retirement I'm disabled now I think it's kind of hilarious watching you👍

That is cool. Oil pump possibility and looks like a cam gear breather is possible. Impressed with the engine.

Nice! It would be awesome to build a little bike around it. Transmission may be tricky though.

I got to build a porch the proper way, learned to cut treads on a lathe, and got to see the inner workings of a classic pan head harley, all in just one lazy afternoon. This Guy is like the Dad and Grandad I never had!

Really great video, seeing those tiny rockers move just slightly and the sound that thing made was so satisfying.

Awesome video I came across it by accident but I have to tell you that's the 1st time I saw a Pan head engine run with the exhaust going forward instead of rearward rearward loves to put that thing with a transmission in a couple of wheels anyway thanks for the video it was awesome

John, Very cool little engine. I cant afford one but your taking it apart and running it was great! Thanks

These are really neat. I’ve always wanted one of those Conley v8 mini engines. That’s all I did when I was a kid was take a part engines and carburetors and put them back together over and over again 😂

That's a Panhead motor made from 1948 to 1965. Love those motors. As far as the pushrods go the longest one goes on the front exhaust the second longest one rear exhaust and the middle two intakes are the same length. It would be super cool to make a frame and all for the motor to fit into.

I'm 23 years old, I own a motorcycle shop in oklahoma where we do maintenance on all types of motorcycles and we also do full custom chopper builds, usually around old harley engines. Let me tell you how close this is to a real Panhead Harley it's awesome. But at the same time it's so different (I'm sure as a result of being so small) it's genuinely just amazing to live in a time where there are running miniature Panheads being made.

Wow!! Your new Johnson engine sure looks tiny and powerful!! Great video!!

4:02 I Love your Organiser! So much like mine. I love to keep any extra screws is can because like you, often they get dropped into a black hole in the floor never to be seen again but the Smart Guy has an ORGANISER!

Not commenting for the purpose of trying to win this engine, but I just want to thank you for this video. Really cool, really enjoyed it! Awesome that we got to see some problem solving after reassembly. I've said it before and I'll say it again - this is my favourite channel on KZfaq!! I love the variety of different things that we get to learn about here on FarmCraft101! Great how this video indirectly ties in some of the experience from the lathe work and Johnson series videos that we've seen in the past. If the need for some casting had also been involved, this would have been the "all in one" quintessential FarmCraft video for a first time viewer. 😁😎👍

This brings me back to when I was younger when me and my grandpa built a two stroke bike and disassembling it and rebuilding it!

I don't know if you are a Harley mechanic or not ,but you did a fantastic job of rebuilding that motor I'm impressed with that motor and your skills. That motor is so much like a full size Panhead Harley motor it's like they washed it in hot water and then dryed it and it shrunk that has to be the coolest engine I've ever seen I have a huge H-D collection of die cast models and that would be the cherry on top of my collection.

the oil tank on a Harley engine is separate and normally sits behind the rear cylinder and above the trans(also separate from the engine) that inlet on the back /rear of the crankcase is an oil inlet

I have worked on cycle engines for 45 years in my garage. That is a really cute engine.