I can hear the husky fan boys crying already😭

When the oldest one makes more hp, and the second oldest one makes more torque, what do we need the newest one for? Oh wait a minute, the EPA 👎

how much for a cs620 shhipped to me ported i live in can

Big bore for sure will help

I would like for you to upgrade my Makita. How can I get in touch with you?

I purchased one a few years back and now it doesn’t want to start/run. So pissed as it’s hardly used. Purchased mine brand new. Ran great for a couple years. Now it’s nothing.

Just more reasons to buy a 501

What kind metal that u use sir?

jaką moc posiada 4910 ?

Next time, let's see ifin we can speed things up. A little 😊

I use to love my ms361 pro when I had it. Now I can't afford Stihl. So I bought a Neotec clone of the ms382 I believe and a Farmatec clone of the ms200t I use to have. Of course since I can't afford a real Stihl pro saw, I can't afford to get either saw built. But if I could, I think I'd pick you to build it. Your work seems so cleanly done. 😎👍 Great video.

A ported 7310 that cost less then any other stock is the answer.

I like the old, and newer up to 2000s. Not a huge fan of the new electronic saws but do plan to maybe pick up a 661cm. Great video.

I just got a 4920 last week really satisfied with it

Minute 19:44 I couldn’t hear the 4 stroke at 12.5 like you said Joe. What should I be listening for when adjusting my Timberwolf

Since the 288 I've always had a thing for high tops

How fast should this saw run unloaded with a 620 carb, new deflector, and timing key? Is 13K too fast to be safe?

Thanks for this demo.

Just out of curiosity what octane did you put in the 4 stroke ?

Go for it mate. Should be fun

Hey Joe, did you end up playing around with that Senix? Be interested in seeing if you can get it going

Just bought a brand new 4910 made feb. 24 at the local pawn shop $280 out the door. And i mean brand new bar cover was still zip tied to chain brake.

Outstanding professional review!!!

Steadfast mufflers sounds the best. But according to the dyno, I’d rather have your modded muffler for longer bars, and general storm cleanup. With the latter, you never know how often you may burry the saw and bog it down too much in varying conditions.

I cannot hear any difference before and after the nozzle change out. How could you tell it needed it?

I just picked one up. Reading up on them they have made a few carb changes to them over the years. What carb was on that one? It’s probably the smallest carb

For a production faller . The biggest difference would be the difference in run time on a tank of fuel. And the size timber they were in. For myself , i would lean heavily to the 585. I had great success with the 288s once they put a decomp valve on them , spring mounts and slotted the cowling devider (the fore runner of the Air Flow system )

What psi do the 346xp run at?

Every saw builder. "Can't share my secrets " That's the reason a 1990 saw can match or exceeed a saw built last year. Y'all treat it like a vip club with no doors. And wonder why more people arent getting involved. It shouldn't be this hard to remain interested in this hobby.

Hello Sir; Now that its been 1 year. What are your thoughts on this 79cc build ? I noticed that it has more torque than the 572 build that you did. Which of the 2 would you recommend for a west coast faller running a 32 to 36 in bar ? Also, the graph, is it read from left to right or right to left ? Tho ive mostly run powersaws gor a living since 73. Theres some of this modern technology that im clueless on. Thank you for your vids !!

Did you put it on the Dyno ? How does it compare to the 565 or 572 with your modified muffler ?? Is it possible to mount the carb from a 585 on it ? Im old , we used to have 2100 carbs mounted onto 266s . Super impressive for such a light weight saw. !

Did you put it on the Dyno ? How does it compare to the 565 or 572 with your modified muffler ?? Is it possible to mount the carb from a 585 on it ? Im old , we used to have 2100 carbs mounted onto 266s . Super impressive for such a light weight saw. !

Did you put it on the Dyno ? How does it compare to the 565 or 572 with your modified muffler ?? Is it possible to mount the carb from a 585 on it ? Im old , we used to have 2100 carbs mounted onto 266s . Super impressive for such a light weight saw. !

I think it's great . If you can make a 565 (71cc) into a 79 cc saw , and it has the horse power and torque gains needed so it competes with a 500i. As far as being able to pull a 36" bar full of 34" of Sitka Spruce or Western Hemlock. And have it last for a season of bushlin. I'll send you my 565 and have you build it !!! The factory 372 Western that came with 75 cc p&c from the factory. Would cut the same times with the same chain as the 460 Stihl. If you can beat that, your doing Great !!

How much power?

My grandfather bought this, it was left to my father when he died, and it works perfectly, it is a very nice saw, I love it very much.

Do power enhancements like this make this saw suitable for milling?

where do you purchase the Iron cylinder sleeves from?

Price???

Hi Joe great vids just wondering what brand are your porting tools and who did you buy them from thanks

Thanks Dyno Joe for this analytical saw info - fascinating stuff! About the hole in the 500i dyno graph at the upper rpm range... do you think that was done to look favorable on European emissions testing? Is the ability coming connect a computer to the saw's fuel computer and change the fuel table like they do when "re-flashing" engine control units (ECUs) in cars to correct the air/fuel ratio across the rpm range?

She came alive!

Ever thoght about dynoing the same saw with different premix oils with different ratios? To see if there's much of any difference? M-Tronic and Stihl 500i would be nice to see. Ever run ethanol?

Hi Joe What carburettor are these newer 372xp running?

Have you ever worked the older 576xp saws? I love them. Just grabbed a used (in great condition) 576xpg. Never had one before. Been running saws almost everyday for 15 years (tree trimmer), but im a total noob to the "build" scene. I also have a 1st gen 461 and a t540. Any suggestions you could give me on how to make them more gnarly? Also, id like a saw in the 50s to climb with when the t540 just doesnt "cut it" and I dont need the two in the mid/high 70s i own either. I was looking into buying a new 550xp mark ii or a 562xp. I am sure you are busy, but if you are able to respond with some advice, id appreciate your wisdom so much 🙏. If not, thank you anyway! 🙂

Mate i love my 241cm. They sold well here in Australia. Would love to send you mine for a port job if you are interested.

Sweet

Didn’t even know dentist/doctors worked on engines lmao

Just starts drilling holes thru 😅 me

Very interestig. I work 261 and 550, muffler mod is 261 More simble, its empty inside. 550 autotune is not so good max rpm. Wood that go nice, nearly 10.000rpm😂