A stroke is when the piston moves from tdc (top dead center) to bdc (bottom dead center) or from bdc to tdc. 4 stroke engine has 4 strokes. Intake(tdc to bdc), compression(bdc to tdc), power(tdc to bdc), exhaust(bdc to tdc). As said in the video a 2 stroke is this process but cutting the number of stokes in half by combining the intake and compression stroke together and then combining the power and exhaust stroke together. Im just clarifying some of the details not criticizing the video as I find it very informative.
I'm 36 years old and have worked on cars and bikes and had dozens of two strokes since childhood , and I've NEVER understood how a two stroke engine worked until now. makes perfect sense now , thanks for the upload .
The awesome two stroke in all its glory. The power uptake on these things are amazing. I love how they sound, how they run and how they are put together. That's probably why I have been bisecting and examining them for the last 25 years. Thanks for sharing this video! Craig
My man: with your second language English you gave me a better understanding than some of the videos made by first language English. Respect to you Sir! 👏🏻👏🏻👏🏻👏🏻
It's really nice mr shahjahan akram to see you here, i was looking for to understand 2stroke engine suddenly i found yours....I wish you best of luck. DAE_Mech 22
The big problem with two stroke engines is the way lubricant oil is mixed with fuel, so the carburetors are tuned to avoid damaging lean mixtures where oil concentration is dangerously low. To avoid that lean state the carburetors are tuned to run a little on the rich side. When that tuning slides back to stoichiometric values the idle rpm increases which causes even more cylinder wear. Emissions regulators get their panties in a knot when they learn that mechanics are trained to tune machines a little rich on purpose to make equipment last as long as possible.
I watched so many videos but I was not so cleared.but you just nailed it never ever going to forget about this engine and the sad truth is it's going to bang
In the 2 stroke engine due to the presence of the lubrication oil, some of the lubrication oil must be combusted during the time of heat addition. Hence there is more friction and loss of work in 2 Engine. So Hence 4 stroke engine is more efficient and have more power .
Asslam.o.Alikm bahi ap bohat informative vedio bana rahy ho.lakin yr agr ap pakistaniyo k lia vedio bana rahy hoo to please urdu main banao kush log esay b hain jinko english ki smj nhi ati.aur urdu sab k smj ati hai
What I don’t understand is in racing motors such as a motocross bike, there are reed valves that spray the mixture but once it sits in the crank, how is it a mixture still?? Also the power valve is another mystery to me as to how it operates. Basic 2 strokes don’t have power valves.
After explosion stroke the air inside will still hot enough to create pressure. Is there a chance of pressure being balanced between this hot air and in coming fuel air mixture there by resuming engines function???
For this reason the exhaust port is slightly higher than intake port...... i.e exhaust port open before intake port... so the high pressure gases flows out to exhaust... therefore no restriction is left in cylinder to disturb intake air fuel mixture...
Hi everyone, I am looking for a diagram or an explanation of the 2 stroke engine that was used in motor bikes for racing. The engine has 1 or 2 exhaust valves that shut off to hold more in the compression stroke. This is different to the power valve. Thank you
A stroke is when the piston moves from tdc (top dead center) to bdc (bottom dead center) or from bdc to tdc. 4 stroke engine has 4 strokes. Intake(tdc to bdc), compression(bdc to tdc), power(tdc to bdc), exhaust(bdc to tdc). As said in the video a 2 stroke is this process but cutting the number of stokes in half by combining the intake and compression stroke together and then combining the power and exhaust stroke together. Im just clarifying some of the details not criticizing the video as I find it very informative.
lovely comment my guy
Thanks for clarifying. I was confused until i read this comment. It clicked for me and made a lot of sense. Thank you!
Perfect
Yes was actually a good video
I'm 36 years old and have worked on cars and bikes and had dozens of two strokes since childhood , and I've NEVER understood how a two stroke engine worked until now. makes perfect sense now , thanks for the upload .
+christian vlek thanx alot man.... i am glad that i helped someone....😊😊
The awesome two stroke in all its glory. The power uptake on these things are amazing. I love how they sound, how they run and how they are put together. That's probably why I have been bisecting and examining them for the last 25 years. Thanks for sharing this video! Craig
Welcome bro...
The cut away is awesome, really helps, Thanks
this is such a great video! I'm studying for my EETC certification test, and this is AWESOME supplemental material. Thank you!!!
I'm 50 yrs old and honestly never thought to ask how they work. Since I bought an old Skidoo Elan I figured better late than never. Thanks
Best explanation for 2 stroke, I have heard to date. Thank you
My man: with your second language English you gave me a better understanding than some of the videos made by first language English. Respect to you Sir!
👏🏻👏🏻👏🏻👏🏻
Great, clear explanation. 👍
It has always surprised me that two strokes even run.
Very good explanation. Never really understood how it worked
Thank you for a straight forward and clear explanation I'm sure you earned several subscribers for this one lol
Your cutaway motor is a very good example of the two stroke. You
explained it very well. Good video.
It's really nice mr shahjahan akram to see you here, i was looking for to understand 2stroke engine suddenly i found yours....I wish you best of luck.
DAE_Mech 22
Thank you for making this.
Very simple and straightforward. Nice job.
Best video. More precise and clear. Good job brother. Thanks alot
Thanx alot brother....
the best explenation on youtube for a 2 stroke
Thankyou brother...
Thank you for this, you explained it very well
This video was FANTASTIC
Thanks you for making this concept so clear to me
Engines are such beautiful human inventions.
This is a great basic engineering talk for us idiots that need it broken down. Thank you.
Great video, thank you!
Best explanation ever. Congrats 👏👏
Great job, I as a lay man on mechanics..I understood your presentation, thanks!
The big problem with two stroke engines is the way lubricant oil is mixed with fuel, so the carburetors are tuned to avoid damaging lean mixtures where oil concentration is dangerously low. To avoid that lean state the carburetors are tuned to run a little on the rich side. When that tuning slides back to stoichiometric values the idle rpm increases which causes even more cylinder wear. Emissions regulators get their panties in a knot when they learn that mechanics are trained to tune machines a little rich on purpose to make equipment last as long as possible.
Very useful. Thank you 😄
Easy to understand, nice sharing 👍
Loved the video brother. Thanks for making it.
Sir ,if we pass air-fuel mixture through crankcase ,then how will you lubricate the crankshaft!...???
The mobile oil that we add in fuel tank... works as lube for crankshaft bearings...
Very well explained thank you.. Does the fresh air fuel mixture lubricate the crankcase bearings in the process?
Great explanation, thank you 👍🏻
Thank you. This was very helpful
Well, that video answered my question. Thanks man!
Welcome man....
Very nice explanation. Thank you very much
Welcome brother....
Brilliant explanation bro' - one of the best I've seen.
Excellent explanation!! Thank you so much!!!
I watched so many videos but I was not so cleared.but you just nailed it never ever going to forget about this engine and the sad truth is it's going to bang
Thanks. Very useful and well explained.
Thank you nice instructions
Awesome word.........continue creating quality content
Thanx man..... will do so...🖒☺
Now I understand, I wasn't sure before. Thank you.
Great video! Thanks for the demonstration!
Verry clear explanation 😍
awesome explanation bro you made it more detailed by explaining with the engine.thanks a lot bro.
Really really good video.
Great video!! Thank you
your demonstration and explanation is really good. I’m a bigger fan of the 4 stroke engine tho.
Very Nice explanation sir 👍
Thanks for the demo
how do people come up with this stuff. really cool
Excellent!
Great video!
Really interesting. Please explain why some 2t engines have a REED valve even though the piston covers the inlet port preventing blow-back?
Thanks for the video bro 🙏🏽
Great demonstration and explanation, thanks!
Thankyou buddy.....
In parallel twin both strokes are power strokes
thank very much for the lesson
Where is the air from the carburetor?
Thank you! I am trying to learn about my 1978 Puch Maxi Luxe that I got. This helps!!!
Welcome dude...
how do you make sure that all the exhaust is replaced by air fuel mixture? or is it a ratio?
In the 2 stroke engine due to the presence of the lubrication oil, some of the lubrication oil must be combusted during the time of heat addition. Hence there is more friction and loss of work in 2 Engine. So Hence 4 stroke engine is more efficient and have more power .
Thanks I Learned something
+Leopard 69 welcome man....
Very informative, very interesting.
The ports and their positions in the cylinder replace the valves and cam shafts in a four stroke.
Good explanation! Thank you!
Best explanation ever.
Thanx dude
Very helpful. Cheers 👍🏻
Asslam.o.Alikm bahi ap bohat informative vedio bana rahy ho.lakin yr agr ap pakistaniyo k lia vedio bana rahy hoo to please urdu main banao kush log esay b hain jinko english ki smj nhi ati.aur urdu sab k smj ati hai
Excellent..... brilliant
What I don’t understand is in racing motors such as a motocross bike, there are reed valves that spray the mixture but once it sits in the crank, how is it a mixture still?? Also the power valve is another mystery to me as to how it operates. Basic 2 strokes don’t have power valves.
great video mate very helpful.
Thanx mate
Thanks and Well done
Great Video! Tnx!
Really good..Now it makes sense!
Glad to know bro...🖒
Thanks. Great simple lesson.
Great video
Genious fella
After explosion stroke the air inside will still hot enough to create pressure. Is there a chance of pressure being balanced between this hot air and in coming fuel air mixture there by resuming engines function???
For this reason the exhaust port is slightly higher than intake port...... i.e exhaust port open before intake port... so the high pressure gases flows out to exhaust... therefore no restriction is left in cylinder to disturb intake air fuel mixture...
Thank you so much for the great explanation
Good knowledge thanks
This is a nice explanation, thanks!
Welcome man.... ☺☺
Thank you very much very clear
thanks very usefully video.
Very well done!
Very nice effort n explanation
Thanks for the video. Beautifully explained. Your new subscriber☺☺☺
Thanx dear...
thanks so much for this video!!!
Very nice
Great work .
Very best Very helpfull Osm
such a good explanation thanks so much
Welcome brother
Very good explanation. Try to get better audio equipment, cant hear you well and have a bit more enthusiasm/josh. Otherwise good job.
Hi everyone, I am looking for a diagram or an explanation of the 2 stroke engine that was used in motor bikes for racing. The engine has 1 or 2 exhaust valves that shut off to hold more in the compression stroke. This is different to the power valve. Thank you
Very good, thanks
Great explanation
Please redo this with some better sound - it's a great video!
Thanx mate.... i ll do so...
and how spark plug works?
That intro is visually amazing , and I've smoked DMT
It's the mechanical elf!
Bruh 😂
Very awsome thanks a lot !