What a great series. The cut away is so helpful to understand what is happenning in a 2 stroke and how porting works. Thank you!!!

This information absolutely cannot be covered too many times. No matter how many times I hear some of this stuff I either pick up something new or gain further confidence in what I already understand. I've been pouring over videos from you and ironhorse gearing up to do my first port job on my 2171 and there's no way I would have gotten to this point so soon if it weren't for you guys!

T-I-N-M-A-N best educational instruction powersaw instructor on KZfaq

Professor Tinman!!!! I have watched the whole porting series, and I still never tire of you explaining the mechanics of two stroke engines! Great teaching! 👏👏👏

Your channel is a wealth of knowledge Tinman. I follow Ironhorse and I follow Buckin’ and JCS but I LEARN THE MOST from your channel.

Always great to have a little reminder to make sure ones thinking in the right direction!

Thanks for the info buddy. Appreciate you. ❤️🌲🌲🌲❤️

Sir, I wish I I could do more. I am a newbie to your channel. I have been a professional automotive transmission technician for the past 30 years but 2 stroke engine has baffled me. Your teaching style is superb. That cut away is awesome. You've given me the confidence to play with my own stuff. Here in North Carolina we have a lot of hardwood so I'm excited to try different things. I wanted to do more than like and subscribe. You've put a ton of time in making these videos and sharing your knowledge. Thank you Tinman. Danny T.

#6 Cutaway Series Installment! 👍🔧🧰

My hats off to you my friend. You give the best explanation in a way that I understand it.... In a matter of fact... Good people 👍

Best explanation I have heard of what is going on in a two stroke combustion engine. Thanks Tinman... Mahalo🤙🤙🤙

Hey Tinman, thanks for the vid. Well, absolutely picked up some more from this vid and I understand now that I have to double back and watch your whole cutaway series to get a more clear understanding of how this stuff works. Later

I guess some people might tired of going over and over on the material that you talk about, but I pick up on one or two thinks at time so it doesn’t bother me at all and I really appreciate how you go over and cover what you’re working on and I know if I was there work with I’d pick on it faster, and again I really appreciate what you do and please keep sharing you’re videos.

I’ve been running a two stroke for nearly 50 years , now l have a clear understanding of how they work , thanx

I don't comment much but always learning. I'm about to put a Hyway Titanikel big bore kit on my 044, gonna bring the exhaust to 98-99° the transfers open @121° and bring the intake to 78° Hope it works out😅

Thank you sir. Greatly enjoyed. ------------------------- The fuel detonation sends a shock wave downward through the piston rod and into the rotational mass below, which is designed to absorb enough rotational energy to push the piston back up for another fuel charge and subsequent detonation. Its a beautiful machine and thanks for slicing it open so well. ------------------------------------------------------- Mr. Brown 12.11.2022

I get it now! Thank you for posting this!!

Fantastic video thank you !

Great video Tinman!

"Nobody can tell you what's good for your wood" XD that could go on a shirt lol

Very good and teaching video! Thx!

Thanks for your advice, I cut and haul firewood in my small village in Alaska. 10 years ago I didn’t really know what I was buying, used old saws. My dad has a 046 mag, being that’s it is heavy and only using it only a couple times. I loved it. I went online and found a 044, that was my first saw I bought, sent it to a saw shop, kept it stock. Next was couple other saws, j-red 670, and a 346XP. This is all helpful. Thank you for being the human being you are in teaching.

Always good info in your videos. I've been watching you, Iron Horse and Belhopper for some time now and have done some amazing builds. One of my favorites is a 020AV that I did some crazy numbers on. I wasn't even sure if it would run decent or at all. Once I got it tuned in I found it was a mini monster. Thank you for your videos and being an awesome human. It's nice to have good teachers out there.

You are the chainsaw Yoda!! I love your channel bro!

Knew the basics of a 2 stroke function. However, you did add a couple of details I didn't think about. Seeing the cut-away dis clear things up a bit for this almost 57 year old guy. Been playing with 2 strokes since I was around 15.

Awesome video. You are a great teacher. That cutaway makes it much easier to understand what is going on. Thanks Tinman!!

you are a master tuner i'd say. your understanding is so good it makes you a fantastic teacher as well. You've single handedly brought niche knowledge to the masses. It would be awesome to have been a two stroke tuner for a MotoGP team back in the day.

Again another golden nugget! This kinda info and way of teaching is just as or more valuable then trade schools. Thanks Tinman!

You should have been a power tech teacher in stead of tin nocker keep up the great content

Thank you!!!

Just love your vids. Every one of them worth watching and loads to learn💪🏻👍🏻

Awsome video tin man , thank you for the education . Made it easy to understand

Great information sir much appreciated. Thank u. Hope u are well! Have a good weekend!

Tinman, great vid again and just perfect timing (a refresher ) lm ready to port a 372 this weekend, your cutaway has been getting a workout sense you made it Thanks and awesome job👍👍👍

Thanks so much for the cutaway. Porting a 046, my second try at porting. The vids you and ironhorse do are an awesome help

really fascinating stuff. gonna check out this man's entire cutaway series. got an old Husky 350 I found laying in my son in law's yard. asked for it and brought it home. got a real familiarilty with the 350 as it was the first saw I ever bought and worked on piston and cylinder were cashed so I am looking forward to replacing em. wish I woulda held off on purchasing the OEM and investigated the Hyway kit you featured in another vid of yours. got a few really beat up Echo climbing saws from my boss at the tree service. maybe I'll be able to get one good saw out of em. your vids are a wealth of info for knuckleheads like me

Excellent!!!!!🪵🪓❤🪵🪓

😂😂😂thank you very much you're Soo helpful to me thank you

Do you have any videos about stuffing the crankcase? I've always read about people stuffing the crank case but now that I have watched this video it makes me believe too much crankcase stuffing could cause less fuel charge volume. I suppose its like you said with porting, you have to find the happy medium that works right for your engine.

I think i might have to try some of tis on my 36cc powered rc car, i bet all this woud make a big difference

Good video bud

Around the 8 minute mark when you're talking about measuring intake timing, you say you measure intake opening before / after bottom dead center. But you say it's 70 degrees for 140 degrees duration. It really looks like it's 70 degrees before / after top dead center, not bottom dead center. Also the intake open duration occurs while the piston is at the top of the cylinder, so it makes more sense that it would be measured that way anyway. Did you just mis-speak? I ask because I've heard other people say the same thing in videos. They're talking about the intake opening relative to BDC but that seems wrong compared to the numbers they give. Anyway, great video series. Thanks for making these.

Great videos . Very well explained. I have a question . Should there be oil in the crankcase. I have a saw there is what looks like a lot of oil in the crankcase

Really great info, thank you. I'm going to try my hand at this on a 350 husqvarna with a hyway cylinder and popup piston. If I understand this correctly, a gasket delete, then raising the exhaust back to where it would've been before the delete, should give me more compression and bring the rpm back up from the delete. Does that seem like a good plan on a work saw? Is there any consequence to widening the ports as long as they are writing the piston skirts?

Great video, you need some heat for your shop my man!

My man.. what an educational series you have made !! So am i anderstanding right, if i do the cilinder seal deletion ,,lets say(4 degrees longer intake ), and raise the outlet port accordingly, i get a noticeable better performance with the minimal fooling around to not completed destroying my saw? Of course keeping the squish hight in mind... Greetings of a ’’noob porter’’ from Belgium 😅

I have a 670 Echo and I love this saw cuts like a dream only thing that may be good or bad a rev limiter but Iam use to it so doesn’t bother me. And I put a longer bar and chain and I think it’s a 30” but not sure but it pulls tha chain no problem it’s a beast and it is two tone color a gray and a little bit of orange don’t know what that means and I was told that their commercial version but don’t know if that’s true and if you know let me know ?

Open at 70 and close at 70 means 140 closed I thought. Therefore duration of opening is 360 - 140 =220. Or am I wrong?

Tinman why don’t you guys have well water? Magnesium or too dry. In pa I never heard of hauling water unless you’re way off the grid. I been meaning to ask since the first time hearing about it

Any advice on a strato saw? 550/555 Husqvarna. Will removing crank stuffers decrease case volume but give more fuel which i expect take longer to reach max rpm. I have several 550 mk2 cylinders to play with. Any advice will be appreciated. Could I tunnel from intake to strato to ad fuel?

On your degree wheel videos does it matter the brand or style and sizes to buy I notice there's difference in prices ? Great videos 😎

Hey Tinman… do you have any target timing numbers for a MS361? 47mm cylinder. Porting lower transfers and intake and exhaust. Base gasket delete. Thanks brother

Hey Tinman I have a mccoulloch 10-10 it's stock carb is good compression is good so is the piston and cylinder but no matter how I tune the carb it's blowing gas out the carburator until everything soaked in gas it don't want to Rev to full throttle and it's don't run but for 20 seconds then shuts off any help no one has a video I can find on this happening muffler is also clear and open if I can get it to idle it dies instantly when turn clutch side down

Can you get more hp out of a Echo 670 and will 25-30 yrs or is that a bad dream and won’t last 5 yrs and I just cut hard wood only mainly oak?

Hey Tinman, can you do me a cut away saw like yours and ship it to Texas? I will pay you well plus shipping. Thanks for your consideration!

Very nice. Something that I have wondered is what sets the ultimate rpm that a saw/engine will spin out to. Typically the peak power is close to the top end of the revs so it seems to me if you can get more rpms you will get more power.

Wouldnt happen to know where to get crank seals for an old mac super 44 and a mac 640 would you?

Please explain blow down in more detail maybe even on a drawing please

For all you people that have the desire to be spoon fed information…. Information easily attained is easily forgotten…. And god gave you 2 ears 2 eyes and one mouth for a reason… it’s all here on KZfaq or the internet in general… you just have to input the correct question