Every time I see these things running at 15,000+ Rpm I am constantly amazed that those little valve springs are up to the task😳

You should lubricate the piston rings and cylinder walls with oil before assembling, also that grease isn’t going to do anything if none of it is under the rocker arms where it contacts the lifters

being a mechanical engineer with the tools and time to build whatever you need must be amazing.

Looks like a well made engine. I'd be slightly concerned about heat, as it's fuel/air cooled, but doesn't have much in the way of visible heat sinking.

I really like the way this one sounds vs the 4cyl. Variants. Big cyls. Big sounds.

Absolutely fascinating. You assembled it very quickly!

Construction on superior level and sound is truly impressive. It seem to have a lot of headroom in increasing performance by your ideas. Hope you’ll have time to spend on it.

As a demonstration of how simple a four-stroke engine can be, this one is really cool!

This little thing is amazing. It revs so high and has a good range. Feels realy responsive to the trottle. Yours videos are amazing!

That's a really lovely beginners engine. If this was my hobby, this would be my first engine I think. Love the torque screwdriver. I definitely need one of those 👍

I like watching small engine builds and break in running before using them for a project or making a power tool with it. I would like to see this tiny engine or another one that has either a glow igniter or spark plug paired with a DC motor/generator to see if it could run off the power that's generated.

This a great engine kit, just noticed building mine a lot of machining shavings in threaded holes and in glow plug holes snake like spiral shavings ,Q-tip and electric parts cleaner was the answer for the glow plug holes. Also 1 rod bearing cap a little tight ,so Loctite and backed off on torque a bit did the trick. One other thing, the rod top half bearing fell out of the rod there is a tiny oil journal to line back up, a tiny piece of wire will work( they drilled it at an angle so should be lined up). Great video thank you.

can you please make a crossplane shaft for it like the Yamaha MT07? I love your content

This runs great, I think you should put this one in. Do you think it's stronger or faster than the 8 cylinder? It's wild how far these engines have come. I uses to have a special prong thing that goes over the glow plug to start it. Used to have to pop the gas line off, blow in with the line by mouth lolol, etc. I really like the starter and it works great too. I also like the glow plug wires. It looks like spark plug wires. Very cool machine. I had the Tiger 21 motor that came in the Schumacher truck. That thing would fly tho. I need to get it up and running again. After watching you, I really want to upgrade and update all of it. Lol I also like the disk brakes, I had the 3 speed gear and it would pop a wheelie in 1st and 2nd. But stopping was very hard and I can't wait to try the newer generation of add-ons. Can't wait to see what you do with this car bud.

That's an awesome electric screwdriver and torque driver(?). Looks like a torque wrench in screwdriver form.

I wonder what it's power output is and if it can swing a 4 blade prop on a reduction drive to fly a large scale P-51. A 3:1 reduction would put the prop at just the right speed at 15K.

Very interesting , as usual ! Fascinating littles wonders !

The sound reminds me of older 4-stroke GP bikes! Lovely 🙂

you should tie it at full throttle, no coolant and spray nitrous into the intake until it blows up or gets hot and locks up

Nice work. Would you mind posting a list of additional parts and tools you used and the torque specifications? I'm planning to do a similar project soon. Thanks!!

Building a cam grinder for these small engines would be a cool project for you.

what torque settings do you use for the engine?

Were the rod cap screws too long because they were a counterbalance?

Perfect engine work

Quality craftsmanship.

Thank you for your passion

Excellent build Man! Loved watching every part of this!!! : >)

What size were the rod cap screws you had to switch to? Also curious what torque specs you used on some of the assembly. The manual doesn’t appear to designate what should be used.

I’d love to see this thing with a dual carb setup

Sounded really nice.

Great little model engine!!😁🔧🛠️👍

Thanks for sharing. Did I see a different head gasket vs the aluminum used on the l200?.

Thanks Johnny 👍🏻🌟

какая красота,не могу оторваться

the 2025 hyndai cilantro gonna be powered by this lol

I wonder how long a small engine like that would run if it ran continuous.

Wow this actualy sounds nice! I'm into RC racing but might build a 1/8 "toy" car with this engine :)

What are you torturing the screws to? Whats the grease in the sirenge? Last question how did you wire your starter switch

Aside from the kit, what else do I need to have this engine running? Looks like I would need some basic tools, a fuel tank, hoses, and a starter at the least.

I am wondering if the instructions say to add all of that blue goop lubricant to the valve train AFTER you bolt it all down? Me, being a very old mechanic, learned to apply all lubricants before installing metal to metal friction surfaces. All piston rings get a liberal coat of automatic transmission fluid as do cylinder walls (ATF is very high detergent which cleans the cylinder walls and ring grooves in case I missed a nano-particle). All rod, main, cam bearing friction surfaces get either MFG supplied lubricants, or "White Lithium". Either in my considerable experience work perfectly during "First starts". Also, Do you ever use the various miniature power plants you assemble in some form of vehicle? Planes, trains or automobiles. Thanks for the great videos!

Lovely little moter the Otto finished building got spark ignition for mine bought the kit

Johnny, how about the durability of these miniature engines? You could do some testing on that. I'm always afraid of buying those for a model car and the engine breaking beyond repair after a couple of runs.

What lubricates the Rods and crank ?

I love the price point for this engine. As a request, could you perhaps bridge port the rotary?

I know it’s been awhile since you posted this, but I got this exact engine last year and fully built it. Just one problem when the packaged it and sent it. They gave me the wrong starter belt, the belt number that I have is B86mxl, when I watched your video over and over again until I found the right size belt B88mxl, I went to eBay and found the right one and got them. I wanted to say thanks for the help.

so does this have a timed spark or does a glow plug just glow all the time and it just timed by the intake cam?

Great vids man, just picked up this engine for my kid. Can you post a link to your deans t splitter or explain how its built? I have found Y cables but not a 3 way like yours.Also what grease is that on the cam/rockers?

And now I know what I want for Christmas. Oh man

Hey. Where did buy the torque screw driver from please?

You are just brilliant. Amazing work. We’re do you get all of the small tools that you use? Got any links where we get them at??

Супер. Каждое видео ваше смотрю с удовольствием.

Wonder if it's got any power at all. If it gets hot, too. Didn't see any cooling, other than the fan blades. I'd really like to see it put to work. Love the videos, man. 👍

is there as much runnout on the hex socket cap head screws as it appears to be at ~4:00?

This video it's so relaxing 😴

That sounded pretty good.

hey, I spent hours looking at your assembly and do forth. 😮do you do any kind of break in?

Do kits like these come with detailed assembly instructions?

Have you ever considered building a hybrid RC(electric and engine powered) car. That would be interesting to do

do you buy these or do the manufacturers send you the engines?

Hi, will there be a test about the enjomor d6 36cc i4 dohc engine?

Nice video!!

I think it'd be pretty cool seeing one of these on a little RC car

Great Video. I just built this engine but before I can run it I need some info. I bought some OSGM2692 glow plugs which I assume are the right kind. I don't have any cables that would snap on the plugs. Can you tell me where to get some and what item number? I also don't know the voltage to apply to the plugs, is it 1.5V? Finally I have the bigger brushed starter motor. Is the terminal with the red pole positive? I notice you used a 4S battery to start it. I suppose I can do that too. Is it OK to connect the battery directly to the starter motor (via a switch)? I'm stuck until I get answers to these questions. It's the first nitro engine I ever had and I plan to just see if I can get it to run on a stand. Thanks

did you use a torque gauge on the rod capes and mains capes?

I’d like to know where you can get one of those little electric driver/torque-wrenches. I’ve seen plenty that are just an electric screwdriver, but none had a torque wrench built in.

Welp it's another nitro engine. I wish we would see the real spark plugs engines.

What powered screwdriver and torque wrench screwdriver do you use?

Does this single carburetor fit on the Toyan Fs-L200? Would it be worth replacing the standard twin carb with this single carb for better throttle response?

Nice vid. Why no inner bearings on the cam?

Dude, i miss the old you! Where are the selfmade air turbines made from tou electric motors??

I was wondering what lubricant and grease I should use and if its available on amazon please

Sucker sounds healthy! Most don't sound as good. Impressive

what's the torque wrench uou are using?

How do you set up the timing so that it runs correctly? Or is it trial and error on it?

For being the cheapest, it looks quite expensive :P Very nice

Is there something like a diesel RC engine? If so would be cool to buy one and run it on something like oil. If not try to make one? You should have the mashinery to make a RC engine. Just an idea

I wanna see one of these have its own proper pressurized oiling system.

Dear Sir my compliments for Your videos one stupid question : the switch button connected to the three plugs works interrupts the voltage in all of them right ? I mean when started the glow ar hot for internal cumbustion without no external help so the switch open or not all the three plugs : starter motor and the two glow in starting phase sorry but I'm used with ols glow plug moters with manual starter and battery on the glow when starting thanks a lot roberto

Can I use such engines or larger, but such a design for a drone or a drone fan? Thank you.

Hello, why don't you place a gasket between the lower two parts of the engine block? Also, what is the brand and type of your torque screwdriver please? Nice air-cooled four stroke engine. Won't this type overheat at max. rev if it's only air-cooled? Enjoyed your video :)

Where do you buy the tools and fuel tanks and pumps and various stuff?

Youre back

Can you please help me? I was trying to fix my fs-l200 because it wasn't running that well and I messed with the carburetor too much. The toyan instructions don't help that much, and there aren't any specific YT videos on an FSL200 carburetor. I messed up all 3 of the screws including the top one, small side one, and bottom one. If you could link a good video that's been made or comment on how I can reset my carburetor settings that would be super amazing.

How does the crankshaft get lubrication?

7:32, did you do an oil change after three tanks?

What torque screw settings do you use for the con rod bearings?

فديو رائع شكرا

how does it feel about continueous use? does it overheat?

Imagine toyan actually added a variable valve timing on their model

Which lubrication would be the best for the assembly? I see @JohnnyQ90 is using something red from the syringe.

One common problem with almost all tiny engine kits, regardless of who makes them, is that their rotating mass is way too small. Replacing the stock flywheel with one that is 2 to 3x heavier makes a world of difference in low RPM operation and general stability.

I want to see an RPM test vs the Torque

Far out pretty neat.

Does anyone know what grease he used?

Why has the idler pully got so much more contact area with the cam belt than the cam shaft pully?

You should do a dyno test on it!

Probably around 12 years ago I converted my Losi Aftershock to electric from nitro. But the more I watch these videos the more I want to convert it back to nitro but with atleast a 2 cylinder engine (edit) oh man it's on sale for $150 right now I just might have to get this thing

would share where I can buy the start motor? (link page)

What is the brand of electric screwdriver?

Very nice