Best explanation I've seen of how a two-stroke engine operates, great idea to help explain them relations of how other parts of the engine helps the engine receive and expell it's exhaust. Once a person understands this real simple principle, other things can be upgraded to help the engine itself perform better everywhere. Thank You Sir
The inner workings of 2 cycle engines were always a bit of a mystery to me. This video was a simple and succinct explanation. Thanks for sharing your knowledge!
I've worked with ported and reeded 2 strokes all of my life and this is the best representation that I've ever seen about what goes on in a ported 2 stroke powerplant. Excellent work!
I've been a machanic all my life but in retirement I had an eight way by-pass an ended up on a ventilator for three weeks and when I woke up I learned how to walk and talk, read and wright again. It took me almost five years to get my memories back, I couldn't even recognize my parents let alone my children or grandchildren. Thank you for your in depth videos its helped me more than you could ever know! Love & Blessings Brother...
@@tinmanssaws I'm a giant man that didn't say thank you to anyone for anything for fare to long !!! Even big old me needs to get with the program... God Bess You & The Family ...
I'm glad I found you as I was trying to understand why my chainsaw was blowing so much smoke. I didn't know that the lower crankcase chamber was acting like an intake manifold in a two stroke engine. Now I know how chain oil is getting into the combustion chamber. Thank you - count me in as a new fan!
I own countless chainsaws, weedeaters and I rode dirt bikes as a kid but not once have I ever known how 2 stroke engines work, thankyou for one excellent tutorial.
Nobody discusses the pie shaped weight. Nobody discusses the angles involved in that pie shaped weight. Power stroke feeds rotational energy into that pie. As the pie rotates back around is gives its energy to the piston and rods causing the process to repeat. When we start an engine, we supply the rotational energy into that mass with our right arm. Such a novel concept. Excellent, sir.
you know what? I have been working on, racing, and all the rest on 2 strokes my entire life, and until now never really grasped the transfer port deal until now, excellent video, thanks Bro!
I understood little until I saw how the transfer of air/fuel from the bottom to top worked. Makes perfect sense. Thanks for sacrificing your engine for educational purposes. Subscribed
Tinman. I don’t think u know how valuable work yr sharing with noobs Teaching and explaining this to folks who are interested Thorough simple and the cut away chainsaw Thanks mate
Great explanation man! Thanks so much, just running my ms170 on some small wood yesterday and was always curious about the 2-stroke process. Cheers from Edmonton, Alberta, Canada
Finally I understand a 2-stroke engine! More complex than a 4 stroke in some ways - not as obvious how it works even though 4S has more components. Many thanks!
Incredible, I consider myself mechanically inclined. You made this so well. I run a saw everyday and this helped me understand exactly what I’m holding in my hands. Thank you
Excellent. I have been working on 2 stroke engines for over 40 yrs and am.self taught and have never learn this aspect before seeing this..the saying u learn something new every day...well thank u I have ...
I have built many 4-stroke engines for bikes and cars in the past 20+ years, and you just learned me on 2-strokes in 12 minutes. Thanks a bunch, man. For ones I am blind, and now I see.
That's great to see someone who can explain and demonstrate exactly how the 2strok works. Good on ya mate , keep going with this.Ill sure be watching. THANKS
Very educational! Finally got a good understanding how a 2 stroke runs and lubricates. Until this video it was driving me nut trying to figure out how a chainsaw lubricates the crankshaft!.
Very good explanation and simple enough , it's a matter of transference between piston location and direct correlation of the transference of fuel and exhaust ports ! The lower internal case is lubricated by fuel oil premix and it acts as a pressure chamber for fuel oil as it is pressurized on the piston downstroke only to escape through transfer ports to be compressed and burnt on the compression stroke !
good description and demo. I'm a boat mechanic, so I'm no stranger to 2 and 4 strokes, but I will say this is new and informative to me. boat motors typically use Reed valves. I had no idea about transfer ports. very cool. as an addition to your vid for anyone interested, 4 stroke is 4 strokes of the piston to 1 complete engine cycle- intake, compression, power, exhaust. 2 stroke is only 2 strokes if the piston for 1 complete engine cycle. the intake and compression stroke happen together and the power and exhaust happen together. lastly, the open exhaust port overlap with the open intake transfer port is called scavenging. the exhaust exiting creates a vacuum which helps draw in the fuel charged intake air. I'm by no means a know it all, just adding some info for anyone interested. great vid. I learned something today! thanks, man!
a long time ago, I did some research trying to learn how a 2 stroke engine works, and all of the explanations and 2D diagrams just didn't make sense to me. This is why I love cutaways so much, and I finally get it. A lot of this remind me of a rotary (wankel) engine.
Brilliant! For years I've never quite had a feel for the 2 stroke engine, even though I knew it in theory. Now I really "feel" it like I do with a 4 stroke engine. Thanks!
Best depiction I have come across ... while trying to figure out if my outboard had clogged intake or exhaust valves ... it is a 2 stroke, so I now know there are no valves. Thank you, you added to my understanding and furthered me up this learning curve. (See even old lawyers can learn new things).
Ya know think about the brilliant minds that figured this out ! I do believe that there is Devine intervention with the minds who Invent such amazing machines!!!
Thank you for this great explanation and demonstration of two stroke operation. I'm amazed at the timing of blocking and exposing of ports. When I was 16, I decided to hot up my two stroke Puch motor scooter. I didn't have a clue what I was doing and made a really thin head gasket. I took it for a run and blew the spark plug out of the head.
I am in an Eternal Love with my Year 2000 Model,Yamaha RX135,5 speed,Two Stroke Motorcycle! Nothing turns my Heart to melt with Love & passion like this Awesome Work of Engineering!
Thank you Tinman. I can rebuild and tune my 2 stroke street bikes but have never had this level of "training". Simple, direct, and to the point. I'm in the middle of a restomod now and will be doing my own porting so this education was timely. I'll go poke around some more on your channel now. Thumbs up.
Many thanks you share a great clear actual detail explanation every component parts & ports functions on how the two stroke engine works, God Bless You !
Excellent teaching videos. So much better than a few pictures like years ago. So many junks saws laying around these days is a big teaching help as well.
OMG!!! That makes so much sense! Thank you, thank you, thank you!!! Explanations are one thing, and no matter how many times I heard them, it still didn't make sense, but that was 12 minutes that made me totally understand the concept!
I always get something from your videos! Great informations, great knowledge while staying humble and modest! It doesn't get any more valuable than that. Thank you, much appreciated
Even though I have rebuilt a crap load of different engines, this video still taught me a ton ! Best video on youtube , nothing else to see here folks,
Bravo! At last I have got how it works a 2 stroke engine. Thank you teacher! At school they didn't explain thoroughly how the admission and the lubrication is made.
This is great. My five year old son and I have been watching two and four stroke animations (he’s obsessed with mechanics and electronics) on UA-cam. I though an animated explanation would be the easiest for him to follow, boy was I wrong. This demonstration leaves them all in the dust! He was taking it all in and understood it. Thanks!
WOW! Who knew what EXACTLY went on behind the casing! Thank you Tinman for such a detailed explanation and demonstration! I am in awe...I am going to have to watch it once again just to be sure I did not miss anything...JUST AWESOME!
Fantastic demonstration. You made it so easy to understand. I learned so much and l thought l had a good mechanical knowledge. I’m off to buy my Dremmel !
Hey Tinman. It took me a while to get to this video but I really should have watched it a long time time ago. I can see how this series will connect the dots for me and things will make more sense eventually. I have to make time to watch from start to finish. Thanks for the vid!
Fantastic super simple to understand explanation i have been riding two strokes moto cross biked for 35 years and its the first time i actually fully understood how a two stroke engine works, thanks for this !! Good Job !
Thank you so much! You help me to diagnose what was happening with my generator i put diesel fuel on, is small one, 700watts maybe, i thought it was melted but the noises i started to hear before it stopped was all indicating to be the top piston ring that overheated and broke and with this explanation I realized that one piston ring is for compression and the bottom piston ring is for vaccum at the intake stroke. So thank G-d the piston ring seemed to have prevented the whole generator to break apart since after broke, it lose compression and stopped... here in argentina is very expensive everything, wanted to have more power output and a fuel that i thought it was cheaper, i don't go out since a while, now diesel fuel in argentina is a lot more expensive than gasoline so i ended up buying 4 litres of diesel that the only purpose is going to be maybe to start firewood to clean my backyard. Diesel have more power output but at the same time for a generator is not really needed, they can rev up with no major issues to adjust to the electric load and still produce not much heat. But diesel fuel runs very hot, it has energy but over time, so i ended up having more power output but overheating the generator.
Was working on a 2 stroke blower tonight and wondered how the air fuel mixture got inside the combustion chamber since the piston never dropped below the intake port. Thanks for the wonderful video explaining how this works!
This answered so many questions I had and I was previously complelty incorrect on how I thought two strokes worked . Your the man these videos are a life saver
Great job! You HAVE TO KNOW how it works to fix or modify the saw effectively. A simple design but can be tricky to diagnose. It’s worth the effort to hear them run!!!
Excellent explanation. Now I understand more fully why 2-strokes are less fuel efficient by using the pressurized air-fuel charge to scavenge the exhaust. So the engine designers can adjust port size, shape, number and location, s well as piston configuration to improve fuel-economy and power. Very interesting.
Tinmaaaaan, had to look back at the cutaway explanations for S.. S n giggles. Best example of how a 2 stroke works.. Thanks again for the simplicity of an otherwise complicated theory.. Cheers from the Kootenays brother.
Great video. This is the first video that showed, or even mentioned, the upper and lower transfer chambers which is the key, IMO, to understanding the transfer of fuel/oil mixture from the lower crankcase lubrication to the upper end of the cylinder to “explode”. Thanks.
This is the best demonstration of how a piston ported two stroke works I've ever seen.
Thanks!!
Absolutely best! Tinman is the man, thank you buddy
And really looking forward to the rest of this series
Yup!
Agreed. Great explanation. I now understand the basic function of a two stroke. I have always wondered.
I have lived 50+ years.....and now I understand 2 strok engines....this is one amazing explaination
I knew nothing about 2 stroke engines prior to watching this. This was incredibly clear. Excellent information and delivery. Thank you!
Best explanation I've seen of how a two-stroke engine operates, great idea to help explain them relations of how other parts of the engine helps the engine receive and expell it's exhaust. Once a person understands this real simple principle, other things can be upgraded to help the engine itself perform better everywhere. Thank You Sir
The inner workings of 2 cycle engines were always a bit of a mystery to me. This video was a simple and succinct explanation. Thanks for sharing your knowledge!
I've worked with ported and reeded 2 strokes all of my life and this is the best representation that I've ever seen about what goes on in a ported 2 stroke powerplant. Excellent work!
I've been a machanic all my life but in retirement I had an eight way by-pass an ended up on a ventilator for three weeks and when I woke up I learned how to walk and talk, read and wright again.
It took me almost five years to get my memories back, I couldn't even recognize my parents let alone my children or grandchildren. Thank you for your in depth videos its helped me more than you could ever know! Love & Blessings Brother...
Wow brother thankyou for the inspiring words!! It means a lot!!
@@tinmanssaws I'm a giant man that didn't say thank you to anyone for anything for fare to long !!! Even big old me needs to get with the program...
God Bess You & The Family ...
Absolutely the best demonstration of the inner workings and principles of a 2 stroke engine ever!
I'm glad I found you as I was trying to understand why my chainsaw was blowing so much smoke. I didn't know that the lower crankcase chamber was acting like an intake manifold in a two stroke engine. Now I know how chain oil is getting into the combustion chamber. Thank you - count me in as a new fan!
I own countless chainsaws, weedeaters and I rode dirt bikes as a kid but not once have I ever known how 2 stroke engines work, thankyou for one excellent tutorial.
Best 2 smoke explanation ever. Watched it with my son after his eyes looked confused when I was trying to explain transfer ports.
This engine model and tutorial explains the 2-Stroke Cycle in a format that I understand. Finally! Thnkyou.
This was the best tutorial on a 2 stroke engine. Thanks Tinman's saws!!
Nobody discusses the pie shaped weight.
Nobody discusses the angles involved in that pie shaped weight.
Power stroke feeds rotational energy into that pie.
As the pie rotates back around is gives its energy to the piston and rods causing the process to repeat.
When we start an engine, we supply the
rotational energy into that mass with our right arm.
Such a novel concept.
Excellent, sir.
you know what? I have been working on, racing, and all the rest on 2 strokes my entire life, and until now never really grasped the transfer port deal until now, excellent video, thanks Bro!
I never quite understood how a 2 stroke engine worked, but now i do. thanks for the great explanation .
I understood little until I saw how the transfer of air/fuel from the bottom to top worked. Makes perfect sense. Thanks for sacrificing your engine for educational purposes. Subscribed
Tinman. I don’t think u know how valuable work yr sharing with noobs
Teaching and explaining this to folks who are interested
Thorough simple and the cut away chainsaw
Thanks mate
Great explanation man! Thanks so much, just running my ms170 on some small wood yesterday and was always curious about the 2-stroke process. Cheers from Edmonton, Alberta, Canada
Finally I understand a 2-stroke engine! More complex than a 4 stroke in some ways - not as obvious how it works even though 4S has more components. Many thanks!
Incredible, I consider myself mechanically inclined. You made this so well. I run a saw everyday and this helped me understand exactly what I’m holding in my hands. Thank you
Excellent. I have been working on 2 stroke engines for over 40 yrs and am.self taught and have never learn this aspect before seeing this..the saying u learn something new every day...well thank u I have ...
I finally understand how a 2 stroke works in reality. I've read a lot of theory but finally after watching this everything makes sense. Thanks!
I have built many 4-stroke engines for bikes and cars in the past 20+ years, and you just learned me on 2-strokes in 12 minutes. Thanks a bunch, man. For ones I am blind, and now I see.
The only video explaining how a 2 stroke engine works that I understood. Thanks a lot!
That was great. Thank you for taking the time to cut that engine and be able to explain it at the same time to see it. That is very important.
This was the best 2 stroke explanation,demonstrated I've ever seen... I thank you
That's great to see someone who can explain and demonstrate exactly how the 2strok works. Good on ya mate , keep going with this.Ill sure be watching. THANKS
Very educational! Finally got a good understanding how a 2 stroke runs and lubricates. Until this video it was driving me nut trying to figure out how a chainsaw lubricates the crankshaft!.
I work with chainsaws most of my adult career not knowing exactly how they work until today.Best demonstration ever, you should teach!
Very good explanation and simple enough , it's a matter of transference between piston location and direct correlation of the transference of fuel and exhaust ports ! The lower internal case is lubricated by fuel oil premix and it acts as a pressure chamber for fuel oil as it is pressurized on the piston downstroke only to escape through transfer ports to be compressed and burnt on the compression stroke !
*your* way(s) makes the most sense the best I've ever seen. Big thanks again, blessing man! 🙌🏽🔥
Glad you liked the video!
@@tinmanssaws well earned & deserved budd 🙌🏽
It was simple and direct. Really great explanation of how it works.
This is great. Best demonstration for two stroke motors. I watched a couple videos before and this was far easier to understand
Absolutely the best explanation I have ever seen of a 2-cycle. Great work!
good description and demo. I'm a boat mechanic, so I'm no stranger to 2 and 4 strokes, but I will say this is new and informative to me. boat motors typically use Reed valves. I had no idea about transfer ports. very cool. as an addition to your vid for anyone interested, 4 stroke is 4 strokes of the piston to 1 complete engine cycle- intake, compression, power, exhaust. 2 stroke is only 2 strokes if the piston for 1 complete engine cycle. the intake and compression stroke happen together and the power and exhaust happen together. lastly, the open exhaust port overlap with the open intake transfer port is called scavenging. the exhaust exiting creates a vacuum which helps draw in the fuel charged intake air. I'm by no means a know it all, just adding some info for anyone interested. great vid. I learned something today! thanks, man!
best demonstration I have ever seen on a 2 stroke. Fantastic!
I know the 4 stroke process, like the back of my hand.
I was confused on the 2, but this did a good job at giving me a basic understanding. Thx
a long time ago, I did some research trying to learn how a 2 stroke engine works, and all of the explanations and 2D diagrams just didn't make sense to me. This is why I love cutaways so much, and I finally get it. A lot of this remind me of a rotary (wankel) engine.
Brilliant! For years I've never quite had a feel for the 2 stroke engine, even though I knew it in theory. Now I really "feel" it like I do with a 4 stroke engine. Thanks!
excellent explainaion sir that was as clear and simple as could've been put by anyone. GREAT job !!!!
Tinman, thanks for this video, seeing the cycle helped me make more sense of things.
Best depiction I have come across ... while trying to figure out if my outboard had clogged intake or exhaust valves ... it is a 2 stroke, so I now know there are no valves. Thank you, you added to my understanding and furthered me up this learning curve. (See even old lawyers can learn new things).
No fancy cgi needed. Just cut an engine in half and be knowledgeable about it and be a passionate teacher like yourself 👍 well done. Good man.
Ya know think about the brilliant minds that figured this out ! I do believe that there is Devine intervention with the minds who Invent such amazing machines!!!
The people who came up with this stuff originally were geniuses for sure
Thank you for this great explanation and demonstration of two stroke operation. I'm amazed at the timing of blocking and exposing of ports. When I was 16, I decided to hot up my two stroke Puch motor scooter. I didn't have a clue what I was doing and made a really thin head gasket. I took it for a run and blew the spark plug out of the head.
I am in an Eternal Love with my Year 2000 Model,Yamaha RX135,5 speed,Two Stroke Motorcycle! Nothing turns my Heart to melt with Love & passion like this Awesome Work of Engineering!
Thank you Tinman. I can rebuild and tune my 2 stroke street bikes but have never had this level of "training". Simple, direct, and to the point. I'm in the middle of a restomod now and will be doing my own porting so this education was timely. I'll go poke around some more on your channel now. Thumbs up.
Now I know the basics of a 2 stroke. Good to know. Makes a difference. The cross-cut engine is terrific end explains allot. Good job.
Brilliant video. Never seen anything explained so clearly.
Yep, perfect explanation. All topics covered.
Crankcase compression, loop scavenging, port timing .
Tinman, That engine cut away is the best explanation I've ever seen. Showing what actually goes on inside a saw. Great Video !
Excelent explanation with no BS music or tacky jokes etc. Thanks!
Many thanks you share a great clear actual detail explanation every component parts & ports functions on how the two stroke engine works,
God Bless You !
that was one of the best explanations i’ve ever heard, i never understood a 2 stroke engine until now
Excellent teaching videos. So much better than a few pictures like years ago. So many junks saws laying around these days is a big teaching help as well.
This is phenomenal teaching sir. You've opened my eyes to demystify the theory of operation of 2 stroke engines. Thank you!!
OMG!!! That makes so much sense! Thank you, thank you, thank you!!! Explanations are one thing, and no matter how many times I heard them, it still didn't make sense, but that was 12 minutes that made me totally understand the concept!
It was nice to see a cutaway for greater understanding than just pictures. Good job, thanks. 👍
I always get something from your videos! Great informations, great knowledge while staying humble and modest! It doesn't get any more valuable than that. Thank you, much appreciated
Best explanation ever, congrats. Greetings from Spain
Absolutely Brilliant demonstration Tinman..
Even though I have rebuilt a crap load of different engines, this video still taught me a ton ! Best video on youtube , nothing else to see here folks,
Class is in session with Professor Tinman!!! That was an excellent explaination
Yes, direct and to the point and easy to understand. Now I know, ...thanks Tinman
Bravo! At last I have got how it works a 2 stroke engine. Thank you teacher! At school they didn't explain thoroughly how the admission and the lubrication is made.
This is great. My five year old son and I have been watching two and four stroke animations (he’s obsessed with mechanics and electronics) on UA-cam. I though an animated explanation would be the easiest for him to follow, boy was I wrong.
This demonstration leaves them all in the dust! He was taking it all in and understood it. Thanks!
WOW! Who knew what EXACTLY went on behind the casing! Thank you Tinman for such a detailed explanation and demonstration! I am in awe...I am going to have to watch it once again just to be sure I did not miss anything...JUST AWESOME!
Fantastic demonstration. You made it so easy to understand. I learned so much and l thought l had a good mechanical knowledge. I’m off to buy my Dremmel !
Hey Tinman. It took me a while to get to this video but I really should have watched it a long time time ago. I can see how this series will connect the dots for me and things will make more sense eventually. I have to make time to watch from start to finish. Thanks for the vid!
Fantastic super simple to understand explanation i have been riding two strokes moto cross biked for 35 years and its the first time i actually fully understood how a two stroke engine works, thanks for this !! Good Job !
Wow very good simple video now I get a better idea of how two stroke engines work
Best video on youtube of 2stroke engine explanation
GREAT explanation brother. I'd love to have a cutaway saw to play with while watching TV or sitting on the can.
very useful to see a 2-stroke motor in this way. thank you for this video
Thank you so much! You help me to diagnose what was happening with my generator i put diesel fuel on, is small one, 700watts maybe, i thought it was melted but the noises i started to hear before it stopped was all indicating to be the top piston ring that overheated and broke and with this explanation I realized that one piston ring is for compression and the bottom piston ring is for vaccum at the intake stroke. So thank G-d the piston ring seemed to have prevented the whole generator to break apart since after broke, it lose compression and stopped... here in argentina is very expensive everything, wanted to have more power output and a fuel that i thought it was cheaper, i don't go out since a while, now diesel fuel in argentina is a lot more expensive than gasoline so i ended up buying 4 litres of diesel that the only purpose is going to be maybe to start firewood to clean my backyard. Diesel have more power output but at the same time for a generator is not really needed, they can rev up with no major issues to adjust to the electric load and still produce not much heat. But diesel fuel runs very hot, it has energy but over time, so i ended up having more power output but overheating the generator.
I knew a lot about two stroks before this, but you have taught me so much more.
So glad this video helped!! Thanks for taking the time to watch it!!
@@tinmanssaws no problem man, thanks for taking the time to make the video.
This is the best and clearest video I’ve seen, great work
Very clear instructional video . Thanks from Ireland .
Wow that makes so much sense! Really like that awesome cutaway model too with such a simple easy explanation. Thank you!
Was working on a 2 stroke blower tonight and wondered how the air fuel mixture got inside the combustion chamber since the piston never dropped below the intake port. Thanks for the wonderful video explaining how this works!
Wish I would have seen this in small engine class 20some years ago..awesome my friend
That dwell space/time between the intake/exhaust ports and transfer's is what turns engine characteristic's into an art.
Tinman that was a Brilliant demonstration. Thanks pal.
Thank you. It makes tons of sense. Im learning to port my saws. I love these vids
I love how you explained it in detail
This answered so many questions I had and I was previously complelty incorrect on how I thought two strokes worked . Your the man these videos are a life saver
Morning, so glad this video helped ya!!
Excellent explanation for a newbie working with small engines! Thank you!
I learn something on every one of your videos. thanks for sharing.
Awesome video. I’ve always wondered how two stroke works. Thank you!
Great job! You HAVE TO KNOW how it works to fix or modify the saw effectively. A simple design but can be tricky to diagnose. It’s worth the effort to hear them run!!!
Excellent explanation. Now I understand more fully why 2-strokes are less fuel efficient by using the pressurized air-fuel charge to scavenge the exhaust. So the engine designers can adjust port size, shape, number and location, s well as piston configuration to improve fuel-economy and power. Very interesting.
Tinmaaaaan, had to look back at the cutaway explanations for S.. S n giggles. Best example of how a 2 stroke works.. Thanks again for the simplicity of an otherwise complicated theory.. Cheers from the Kootenays brother.
You have a great way in explaining this. Learned this when I worked at the saw shop. Now as a tree climber i want to learn to port my saws
Great video. This is the first video that showed, or even mentioned, the upper and lower transfer chambers which is the key, IMO, to understanding the transfer of fuel/oil mixture from the lower crankcase lubrication to the upper end of the cylinder to “explode”. Thanks.
The best video explaining 2 stroke engine process
This is that teaching that just sinks in very deeply, thanks for the video :)
Awesome video. Great explanation. The cut out show a clear picture of everything you explained
This explanation was "fly!" Thanks for taking the time in making the video.
I work on aircraft engines but always wondered how the two stroke works, very enlightening! Thank you