I never knew the magic of the 2 stroke engine... ive worked on 4 stroke small engines for yrs as a hobby. These cutaway videos are amazing..youre an excellent instructor.. thank you...
Came here to watch to wrap my head around the 10° blow down numbers you were taking about on buckins mac 850. Thanks for this cutaway series. Thought I had a basic understanding of 2 strokes, but I was way off in my head. Had no idea what "transfers" did and didn't realize the fuel went into crankcase before being transferred to the cylinder. Makes so much sense now and I learned my one new thing for the day! Lol Thanks
Hey Tinman. I'm just a homeowner that cuts wood for my yearly use at home. I have always loved learning and seeing mechanical stuff. I watch BBR also and Ironhorse. Have gained some interest in may fooling around with my saw or buy another to mess with and this was a fantastic explanation. Will have find Part 1 and watch it as well as other ones you have coming. Thanks for your work.
by far , the most satisfying, pleasant and easy2understand chainsaw timing video I've ever seen on YT since catching the Chainsaw V. in the early 2000's. *Major thanks man*
One of the best videos yet on TH-cam you went where everybody is afraid to go or should I say they're trying to hold their secrets you helped out a lot of amateur Porter's everybody thinks it's a big mystery but it's really pretty simple been doing it for years again one of the best videos on TH-cam keep on kicking some ass
I'm just getting into fooling around with 2 stroke engine,and I love them, you have been a great help adding to my understanding of these fun engines. thank you sir.
Excellent video and explanation ! It makes you realize how easy it is if you don’t understand a 2 stroke as to how badly you can screw up a porting job for performance unlike a 4 stroke .
Excellent explanation of intake duration and why it is important not to overdo the intake timing. Everyone who owns a saw and uses it professionally should watch this.
I achieved 360dgs inlet on a lambretta engine by fitting a Yamaha reed valve and cutting a boost port over the top of the crown. I swear that engine was smoothest single 2T I've ever ridden. No banging or delay. The power curve was as smooth as a upturned banana... It made 24bhp. Not bad for a 225cc that was 45 years old. Fitted kawasaki cassette clutch from a KDX as the best lambretta clutches all slipped..
Man thanks for this video! Absoluty great way to explain it! I am VERY Familiar with 4 stroke head porting, however I have been asked by many people to port a 2 stroke and I turn it down because I was not sure how that is done, I hav however done "Clean Up" porting but never understood the Port Timing and intake port timing adjustments. THis helped me a lot. Thanks again!
This is by far, the very best visual explanation of timing on a two stroke, and how a few degrees one way or the other will affect torque and rpm's. Super job Tinman. Tap-er-light, eh!
I'm just learning 2 cycle port timings and you were very easy to follow. Thanks for the visual and verbal explanation ,. Makes perfect sense, Semetrical. Port timing wheel mounted on the engine, Positive stop for TDC. 85+85 = 170-degree exhaust begins to open and closes at, 55+55=110-degree intake transfers begin to open and closes at. 85 - 55 =30 degrees of blowdown, ( the time the exhaust starts to open to the time the intake transfers begin to open). So 30/110 = .2727 which is 27% blow down. 170ex 110in with 27% Bld. Do these numbers look ok? 66cc/MZ clone cheap expansion chamber, silencer(glass pack) and G2 Reed, I realize your working on piston port erngine
I’ve learned more in the space of this video the one before about engines than I have in the last year! Knew so little about two strokes. Thanks! Can’t wait to watch more when I next have an hour spare 👍🏻 keep up the good work!
Great video, thanks for sharing. I use an old cut out spark plug and a DTI gauge through it for tdc. Also save ya plastic chopsticks for sticking down cylinders, they are great for pressing on parts that might get scratched.
You have done an excellent job in making these cutaway. You are a master teacher. The idea itself is excellent. You have made a difficult subject east to understand. I thank you and encourage you to keep teaching. The video is so good. What camera did you use?
Great job 👍 Tinman. With your visual cut away and great explanation, I'm sure anyone who hasn't worked on an engine before could get the hang of it. Really moving up in the world, we have picture in picture on Tinman's channel now. Pretty soon it'll be a white board and projector at the professor's Lol. Keep up the hard work and awesome videos! 👍👍💪💪😁
Awesome explanation brother! I always love it when people explain what everything is and then give a rudimentary explanation of how changing a particular thing will affect operation. You're definitely helping me get the courage to start tinkering with saws, but I'll be waiting on some more info such as learning about squish and transfer shapes first. Keep up the good work!👍
I understand everything you discuss on this video - your cutaway model and explanations are excellent and easy to understand. What I haven't got my head around yet is how the process is applied to the machine when one wants to make an adjustment - of say 2 deg. What is actually done to the cylinder? Cheers!
Tinman, this is the best demonstration I've seen on this. Between you and Ironhorse Im confident I can do a successful porting job. I have a 257 Husky but it's of the open port design. It looks different than what you guys normally do to Port the transfers. Thanks Mr. Tinman, Happy Easter.
Nice, per Steve's shout out, Steve's small engine saloon, as I look through your videos, I decided to watch your video,Chainsaw cutaway #1 how a 2 stroke works!!, And then this one as. I already knew the two stroke cycle, so was interested on your take. But this video was very interesting in how port timing is so critical.
Yeeeesssssss! More port timing!!! Thanks Tinman I really need to know this stuff so I can do some porting for myself. Your video's are great and the timing is spot on too. Be safe.
Dude! defintely the clearest informative video on this topic out there! Keep up the amazing work 🤟 sorry iron horse! You guys should sometime to conjoin be a great episode 👍
Thank You for all the time and effort you put into videos like this! Truly amazing teaching and presentation skills you have! I already messed around with porting a baby Husky 40cc without a wheel mounted. Now I’m curious what the numbers are since it really pulls strong for a little saw.
Truly appreciate you sharing your knowledge. I’ve had a degree wheel for years and never felt confident enough to get into porting. Knowing full well raising exhaust port height increases top end RPM and conversely lower an intake will induce intake charge sooner but knowing how much is key especially between models of saws. On an already high revving saw are there gains to be had from increasing Ex port height or will it give negative results. So many questions such little time
I currently have an 800cc triple producing 237hp 218ft torgue at 10200rpm. This guy is only talking basic stuff. I can fully break down how hp is made to build hot running engines. It's an art but all math. Since there is very few left that know anything about oil burners I don't feel too bad about sharing some info
Thanks tinman, I didn't fully understand how to time a saw before watching the video but now I do ! Thank you . MY COFIDENCE LEVEL IS ALMOST THERE TO TRY TO PORT ONE OF MY SAWS ! Thanks again
You are the best, thank you for the education, I love your videos and I watch all the other guys too. August and Buckin and Reg coates, the very best,....
Great video. One thing I don't understand. When calculating exhaust duration you deduct the multiplied duration from 360 degrees. But when you calculate intake duration you again multiply by two but don't deduct from 360 degrees. Can you explain why? Great video presented so well. Thanks from across the pond.
Very good information sir thank you. What was the saw u made this cut away from i forgot hope everything is well with you and your family thank you buddy.
Many thanks for this, and all of your videos. This couldn't have been timed better (bad humor), My first porting job is going to be on an 028. I have a perfect: '1 in a thousand' made in W. Germany (I'll use it to collect stock specs), then compare performances between it, and to the 'soon to be' ported saw after the job is complete. I will keep everyone updated, but this could take months. Thanks again.
@@johnnellis3025 I broke my wrist, just after Christmas, everything's been on hold. but the mild port is done, I'll give you those numbers. (I have to check my book), the squish on the 1/1000 is 21 thousands. Thanks for asking.
@@johnnellis3025The numbers for the one I ported, are as close to TinMan's numbers. I used a HyWay cylinder and piston, and it didn't need much Other than checking the squish on 1/1000, I didn't take it apart yet. in fact, I might not for a while. I have 3 customer's saws waiting for repair, and another customer bringing in 4 more. I also am working on a type I 028, and the exhaust is located in a different position than the type II cylinder heads. I can check that tomorrow or Sunday (It was purchased in 1980 slightly used, all stock)
Thank you that you done video. Maybe this videos piston close exhouse coming back? Exhouse port must be full open when piston is down. Timeing is interesting.
I always thought that two stroke tuning was a mystery performed by witches, after watching this I kinda get it a bit, great video and love your stuff, all explained in easy to understand man talk, thank you my friend. Newly subscribed 👍👍👍
i had a honda odyssey 250cc pull start. no rear suspension, with front springs. the piston skirt broke and parts went out the exhaust or somewhere, and i had a 1979 yamaha 250 it e or an f piston on the shelf. to get an idea if it'd work i put the yamaha ring in the odyssey bore and found almost no gap!! so i knew i was on the right side. to file the ring with a couple hundredths target. the piston was tight. but hey without measuring nothing by scale. the pin bearing accepted the yamaha pin perfectly. the difference in the 2 companies production of piston varied in the intake cut of the piston. now that's an important thing to get right or it wouldn't work. the yamaha had 2 intake holes in the piston, the honda had 1 large hole. not even concerned whether the port timing was close or not, i put it together even with a broken in one spot base gasket (probably the only way it'd run. it was siliconed of all things too.) starting the motor was difficult, with a thump, thump as compression stroke would nearly make it impossible to pass over. but it'd run and run like monster. i rode it for a few months and sold it. still running.
awesome awesome vid!!!! hey brother. i guess i need to rethink my 5 and 10 degree increases on the 372 big bore. im going to go 2 and 4 . i totally didnt account for the increased duration the original increases would have done. awesome vid.
Awesome video! What is the name of the plastic tool you use for the timing? I am referring to the one you put on top of the piston? Thanks for your explanations.
You time to top of piston that does not seal against the cylinder instead of the top of the top piston ring? Once that top ring is below the exhaust port it's dumping pressure. Just a thought. Really enjoying your videos, thanks
I have a cheap Craftsman chainsaw but I'm interested in how it works. What does all the talk about timing and duration mean to me, a complete 2-stroke dummy? Also you didn't explain how to adjust or change the timing and duration. Could you please touch on the steps of that? And could you explain if it would be something beneficial to me to increase performance? Thank You for the informative videos.
Beautifully explained timing. One question though how do you know 156 degree is what you want for this saw? I don't get what are desirable numbers for timing? What am I missing?
It is amazing that the piston rings don't get caught on the edge of the ports when it is running. It would be interesting to see the MOCK-UP turning with the rings on the piston.
they do catch but its not noticeable right away. over time the portion of the rings that slide past the ports will show more wear then the portions that do not.
Will definitely check tomorrow seems to feed but no high end all seems near ok but full open is like 1/3 to full out put for a motorized bicycle stuff this is a new one for me! New piston and shaft run great for 3 months then cut runs but no power on load and seems odd even just throttling the shaft has no slip but the feed seems off.
![ลองสุ่มไอโฟน 990 โกงมั้ย? [ โกงมั้ยครับ ep.101 ] | DOM](http://i.ytimg.com/vi/bfsWe0j492k/mqdefault.jpg)
I understood porting improved performance, but this video series just turned the light on for me. Thanks for doing this.
I never knew the magic of the 2 stroke engine... ive worked on 4 stroke small engines for yrs as a hobby. These cutaway videos are amazing..youre an excellent instructor.. thank you...
Cutaway is a terrific teaching aid and you both explained and demonstrated the numbers really well. 😊👍
By far the most informative videos on two strokes I’ve ever come across. 👏🏻
Came here to watch to wrap my head around the 10° blow down numbers you were taking about on buckins mac 850. Thanks for this cutaway series. Thought I had a basic understanding of 2 strokes, but I was way off in my head. Had no idea what "transfers" did and didn't realize the fuel went into crankcase before being transferred to the cylinder. Makes so much sense now and I learned my one new thing for the day! Lol
Thanks
Hey Tinman. I'm just a homeowner that cuts wood for my yearly use at home. I have always loved learning and seeing mechanical stuff. I watch BBR also and Ironhorse. Have gained some interest in may fooling around with my saw or buy another to mess with and this was a fantastic explanation. Will have find Part 1 and watch it as well as other ones you have coming. Thanks for your work.
All u listed are good teachers as well. Hopefully your doing some work, have fun and good luck 2 u
by far , the most satisfying, pleasant and easy2understand chainsaw timing video I've ever seen on YT since catching the Chainsaw V. in the early 2000's. *Major thanks man*
Thanks! I'm glad you enjoyed it.
One of the best videos yet on TH-cam you went where everybody is afraid to go or should I say they're trying to hold their secrets you helped out a lot of amateur Porter's everybody thinks it's a big mystery but it's really pretty simple been doing it for years again one of the best videos on TH-cam keep on kicking some ass
That is so cool to see the cut away. That puts more into perspective. Thats an awesome video! Thank you
I'm just getting into fooling around with 2 stroke engine,and I love them, you have been a great help adding to my understanding of these fun engines. thank you sir.
This video deserves the Pulitzer Prize. What a great learning tool you have sir! Thank you.
Excellent video and explanation !
It makes you realize how easy it is if you don’t understand a 2 stroke as to how badly you can screw up a porting job for performance unlike a 4 stroke .
Excellent explanation of intake duration and why it is important not to overdo the intake timing. Everyone who owns a saw and uses it professionally should watch this.
On intakes go wide to get more flow over going to big vertically. Just mind the rings
I achieved 360dgs inlet on a lambretta engine by fitting a Yamaha reed valve and cutting a boost port over the top of the crown. I swear that engine was smoothest single 2T I've ever ridden. No banging or delay. The power curve was as smooth as a upturned banana... It made 24bhp. Not bad for a 225cc that was 45 years old. Fitted kawasaki cassette clutch from a KDX as the best lambretta clutches all slipped..
That's what I'm talking a boat. The best timing video I've seen on TH-cam.
All the way till the end, twice just to make sure.
I suck at math so this visual video helped a lot in explaining how to calculate duration and blow down. Thank you
Man, you are a literal legend for the knowledge you have shared! Thank you from the bottom of my heart and soul. Just thanks
I wanna port my bicycle engine and this video has explained it so well I have no fear of porting it. Thank you ❤
You're the coolest uncle I never had! Keep killing it with these videos!
Nobody on You Tube has done videos like this:) Just awesome :) Keep up the good work :)
This video is absolutely invaluable. This helped me understand what I am reading when I time my saw.
Thank you for such great content......this series with the cut away, porting etc... is priceless....
The cut away definitely helps me to understand the numbers better ! Great tool ! Thanks eh
He may be the only person to explain it to the T!..
Man thanks for this video! Absoluty great way to explain it! I am VERY Familiar with 4 stroke head porting, however I have been asked by many people to port a 2 stroke and I turn it down because I was not sure how that is done, I hav however done "Clean Up" porting but never understood the Port Timing and intake port timing adjustments. THis helped me a lot. Thanks again!
This is by far, the very best visual explanation of timing on a two stroke, and how a few degrees one way or the other will affect torque and rpm's. Super job Tinman. Tap-er-light, eh!
Really great explanation on timing, was really confused at first but the close up cut-away really helps for visualization. Thanks Tinman!
I'm just learning 2 cycle port timings and you were very easy to follow.
Thanks for the visual and verbal explanation ,. Makes perfect sense, Semetrical.
Port timing wheel mounted on the engine, Positive stop for TDC. 85+85 = 170-degree exhaust begins to open and closes at, 55+55=110-degree intake transfers begin to open and closes at.
85 - 55 =30 degrees of blowdown, ( the time the exhaust starts to open to the time the intake transfers begin to open).
So 30/110 = .2727 which is 27% blow down.
170ex 110in with 27% Bld.
Do these numbers look ok? 66cc/MZ clone cheap expansion chamber, silencer(glass pack) and G2 Reed,
I realize your working on piston port erngine
Ive never understood port timing like i do now, that cutawy really helped! Ill be re watching this and applying some of this to my 77 dt400 2 stroke!
Absolutely the best explanation on that that I have seen
I’ve learned more in the space of this video the one before about engines than I have in the last year! Knew so little about two strokes. Thanks! Can’t wait to watch more when I next have an hour spare 👍🏻 keep up the good work!
Great video, thanks for sharing. I use an old cut out spark plug and a DTI gauge through it for tdc. Also save ya plastic chopsticks for sticking down cylinders, they are great for pressing on parts that might get scratched.
You have done an excellent job in making these cutaway. You are a master teacher. The idea itself is excellent. You have made a difficult subject east to understand. I thank you and encourage you to keep teaching. The video is so good. What camera did you use?
Many mechanics cannot understand the two stroke cycle!
Excellent video will be looking for more
Tinman that was beautiful my brother.
Can’t wait to see what’s next.
TIME TO WORK ON SOME CHAINSAWS.....
Great job 👍 Tinman. With your visual cut away and great explanation, I'm sure anyone who hasn't worked on an engine before could get the hang of it. Really moving up in the world, we have picture in picture on Tinman's channel now. Pretty soon it'll be a white board and projector at the professor's Lol. Keep up the hard work and awesome videos! 👍👍💪💪😁
Fantastic teaching! Truly a great learning experience for me! Thank you.
Awesome explanation brother! I always love it when people explain what everything is and then give a rudimentary explanation of how changing a particular thing will affect operation. You're definitely helping me get the courage to start tinkering with saws, but I'll be waiting on some more info such as learning about squish and transfer shapes first. Keep up the good work!👍
I understand everything you discuss on this video - your cutaway model and explanations are excellent and easy to understand. What I haven't got my head around yet is how the process is applied to the machine when one wants to make an adjustment - of say 2 deg. What is actually done to the cylinder? Cheers!
Cutaway is a perfect tool to learn from. Thank you!
Tinman, this is the best demonstration I've seen on this. Between you and Ironhorse Im confident I can do a successful porting job. I have a 257 Husky but it's of the open port design. It looks different than what you guys normally do to Port the transfers. Thanks Mr. Tinman, Happy Easter.
Nice, per Steve's shout out, Steve's small engine saloon, as I look through your videos, I decided to watch your video,Chainsaw cutaway #1 how a 2 stroke works!!, And then this one as. I already knew the two stroke cycle, so was interested on your take. But this video was very interesting in how port timing is so critical.
Steve's Small Engine Salloon is my favorite small engine channel on youtube!!
I know I'm a year late but this cutaway series is awesome. Thanks Tinman.
Best of both worlds! Thanks Tinman for the perspective! Sure gives you a better idea of what we are doing here!
Great job!!! Thank u for helping me learn the right way Keep up the great videos.
Among the best 2 stroke explanations videos out there Tinman.
Yeeeesssssss! More port timing!!! Thanks Tinman I really need to know this stuff so I can do some porting for myself. Your video's are great and the timing is spot on too. Be safe.
The cutaway model is soooo helpful. Good idea and thanks for making this
Nice one Tinman 👍, very helpful video.
the more I watch the more I understand. I love it man.
Dude! defintely the clearest informative video on this topic out there! Keep up the amazing work 🤟 sorry iron horse! You guys should sometime to conjoin be a great episode 👍
Thank You for all the time and effort you put into videos like this! Truly amazing teaching and presentation skills you have! I already messed around with porting a baby Husky 40cc without a wheel mounted. Now I’m curious what the numbers are since it really pulls strong for a little saw.
Very cool tin man helps me out alot just putting the numbers into perspective. Thanks
He explained it like a professor!
Truly appreciate you sharing your knowledge. I’ve had a degree wheel for years and never felt confident enough to get into porting. Knowing full well raising exhaust port height increases top end RPM and conversely lower an intake will induce intake charge sooner but knowing how much is key especially between models of saws. On an already high revving saw are there gains to be had from increasing Ex port height or will it give negative results. So many questions such little time
I currently have an 800cc triple producing 237hp 218ft torgue at 10200rpm. This guy is only talking basic stuff. I can fully break down how hp is made to build hot running engines. It's an art but all math. Since there is very few left that know anything about oil burners I don't feel too bad about sharing some info
Thanks again Tinman.
Grouse vid and explanation.
Loving this channel the most 👊
Thanks tinman, I didn't fully understand how to time a saw before watching the video but now I do ! Thank you . MY COFIDENCE LEVEL IS ALMOST THERE TO TRY TO PORT ONE OF MY SAWS ! Thanks again
This is such an awesome series thank you so much for putting this together sharing it with us.
You are the best, thank you for the education, I love your videos and I watch all the other guys too. August and Buckin and Reg coates, the very best,....
Man that is awesome! I sure appreciate the details you had put into this video!
Thank you sir. Helps a lot for a small motor builder just starting to do these thing
Thank you for all this great information loving the cut away .
I think I actually learned something about 2 strokes! I got some saws that are getting closer to going under the “dremel”! Thanks buddy!
Great video. One thing I don't understand. When calculating exhaust duration you deduct the multiplied duration from 360 degrees. But when you calculate intake duration you again multiply by two but don't deduct from 360 degrees. Can you explain why? Great video presented so well. Thanks from across the pond.
Great video tinman. Timing wheel shown at same time was cool
man your video's are very great, this workbench is perfect for explanation !
Great learning video with cut out, I have learned so much
One of the best explanation.Thank you Sir. ☺
Thank you sir. This is very helpful for the small 2 stroke builder.
Man you’ve helped me so much with these videos!
Very good information sir thank you. What was the saw u made this cut away from i forgot hope everything is well with you and your family thank you buddy.
Stihl 028 super
Great job Tinmam.....it looks like there is a crack in the top corner of the cylinder where the machined recess is for the is.....interesting.....
I wouldn't be surprised that is a junk cylinder
Great tutorial, Tinman!!!🪓🪓🌲🪵🪓🌳🪓❤🌿🪓🪓🪵🪵🐻
wow dude thnx for going to all this trouble to explain really appreciated huge thumbs up
Best explanation yet! well done and thank you.
Many thanks for this, and all of your videos. This couldn't have been timed better (bad humor), My first porting job is going to be on an 028. I have a perfect: '1 in a thousand' made in W. Germany (I'll use it to collect stock specs), then compare performances between it, and to the 'soon to be' ported saw after the job is complete. I will keep everyone updated, but this could take months. Thanks again.
It's been a few months, how are you making out? You have my full attention!
@@johnnellis3025 I broke my wrist, just after Christmas, everything's been on hold. but the mild port is done, I'll give you those numbers. (I have to check my book), the squish on the 1/1000 is 21 thousands. Thanks for asking.
@@thomasgronek6469 Oh, so your going to hold me in suspense, thanks a lot. Get well i can wait. Squish seems perfect for a working saw.
@@johnnellis3025The numbers for the one I ported, are as close to TinMan's numbers. I used a HyWay cylinder and piston, and it didn't need much Other than checking the squish on 1/1000, I didn't take it apart yet. in fact, I might not for a while. I have 3 customer's saws waiting for repair, and another customer bringing in 4 more. I also am working on a type I 028, and the exhaust is located in a different position than the type II cylinder heads. I can check that tomorrow or Sunday (It was purchased in 1980 slightly used, all stock)
@@thomasgronek6469 Good for you, busy is better than slow.
Great explanation for visual learners like myself. Cheers
thanks so much, this is pretty much the most helpful and well made video on youtube.
AWESOME loving this series, thanks buddy
Thank you that you done video. Maybe this videos piston close exhouse coming back? Exhouse port must be full open when piston is down. Timeing is interesting.
You've got an excellent teaching style, thanks AGAIN! (One thumbs up, just ain't enough!)
I always thought that two stroke tuning was a mystery performed by witches, after watching this I kinda get it a bit, great video and love your stuff, all explained in easy to understand man talk, thank you my friend. Newly subscribed 👍👍👍
Right on glad the video help!! Also thankyou for subscribing!!
This series is awesome! The 2 camera view 👍🏽👍🏽
Amazing work, explained so well, I was able to understand easily
Thanks a lot for this!
i had a honda odyssey 250cc pull start. no rear suspension, with front springs. the piston skirt broke and parts went out the exhaust or somewhere, and i had a 1979 yamaha 250 it e or an f piston on the shelf. to get an idea if it'd work i put the yamaha ring in the odyssey bore and found almost no gap!! so i knew i was on the right side. to file the ring with a couple hundredths target. the piston was tight. but hey without measuring nothing by scale. the pin bearing accepted the yamaha pin perfectly. the difference in the 2 companies production of piston varied in the intake cut of the piston. now that's an important thing to get right or it wouldn't work. the yamaha had 2 intake holes in the piston, the honda had 1 large hole. not even concerned whether the port timing was close or not, i put it together even with a broken in one spot base gasket (probably the only way it'd run. it was siliconed of all things too.) starting the motor was difficult, with a thump, thump as compression stroke would nearly make it impossible to pass over. but it'd run and run like monster. i rode it for a few months and sold it. still running.
another great explanation of the 2 stroke.
awesome awesome vid!!!!
hey brother. i guess i need to rethink my 5 and 10 degree increases on the 372 big bore.
im going to go 2 and 4 . i totally didnt account for the increased duration the original increases would have done.
awesome vid.
Yep thats way to much timing for sure!!
@@tinmanssaws
Master, what's the best 1:33 oil to fuel ratio? husqvarna ls + oil?
Great job with the cut away. Helps very much
This is Awesome ! Did my first saw that was given to me . Totally understand now. .
You are a gold mine of information!
Another great vid Tinman👍 awsome
Awesome video! What is the name of the plastic tool you use for the timing? I am referring to the one you put on top of the piston? Thanks for your explanations.
You time to top of piston that does not seal against the cylinder instead of the top of the top piston ring? Once that top ring is below the exhaust port it's dumping pressure. Just a thought. Really enjoying your videos, thanks
You’re the man. Makes so much sense now
I have a cheap Craftsman chainsaw but I'm interested in how it works. What does all the talk about timing and duration mean to me, a complete 2-stroke dummy? Also you didn't explain how to adjust or change the timing and duration. Could you please touch on the steps of that? And could you explain if it would be something beneficial to me to increase performance? Thank You for the informative videos.
That is awesome! Thanks for sharing buddy!👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸🙏🙏🙏🙏 btw hope you had a great thanksgiving!
That cut away is Brilliant
Wow! Fascinating, thanks for doing this!
good explanation of the function of the transfer
Beautifully explained timing. One question though how do you know 156 degree is what you want for this saw? I don't get what are desirable numbers for timing? What am I missing?
It is amazing that the piston rings don't get caught on the edge of the ports when it is running. It would be interesting to see the MOCK-UP turning with the rings on the piston.
they do catch but its not noticeable right away. over time the portion of the rings that slide past the ports will show more wear then the portions that do not.
Will definitely check tomorrow seems to feed but no high end all seems near ok but full open is like 1/3 to full out put for a motorized bicycle stuff this is a new one for me! New piston and shaft run great for 3 months then cut runs but no power on load and seems odd even just throttling the shaft has no slip but the feed seems off.
Awesome and very informative video!