Thanks mrs. Jack for helping with this lesson! Man Jack, that saw flat out pulls......and as I'm just getting caught up on videos after a 20 year in the making hunting trip, this is the first video I've watched on these two one ton saw build comparisons since the stock as a rock intro of them! Needless to say I'm more than stocked about these saws and the videos I'm behind on lol. Safe cuttin pard
Yes, as they taught me in Aviation Maintenance in 1992 Bernoulli's principle. (I know hotsaws101 knows this but some viewers might be interested to learn the following). Where velocity & pressure are inversely proportional to one another. As velocity increases pressure decreases. That's the main reason/forces on how a carburetor operates. As the air goes thru the venturi it gets necked down smaller & smaller like in a funnel & on this K&N filter venturi & the velocity/speed picks up & this causes an area of low pressure in the center area of the venturi & the fuel is sucked out of the float bowl thru channels/tubes/jets etc. & gets metered/mixed with the correct ratio of fuel (Stoichiometric ratio air/gasoline ratio is 14.7:1 & for a gasoline engine is the ideal ratio of air to fuel that burns most all of the fuel with no excess air). Good 3D video how a carb works here on TH-cam: th-cam.com/video/Gkhd-eJk234/w-d-xo.html How Carburetor Works ( 3D Animation) in Suzuki GS150R Motorcycle
Thanks again for a good comparison and thanks to "Mrs Hotsaws101" for running the tach. Always interesting seeing what these changes do. The numbers are one thing, but the how it feels in the hand is more interesting.
One thing that should considered it that the oiled foam filters stop way more dirt. I've seen lots of fine dust pass right through a k&n. I personally will never run one for the simple reason that they shorten engine life.
Adam hi. They are both supposed to be oiled. Although, I've seen guys that don't. I ran a lot of K&N filters on my Huskys, on the coast as well as inland (about as dusty as it gets) over quite a few years. I never noticed a problem with fine particulates getting by unless there was a tear/hole/gash in the cotton element. Part of it is not using mixed gas to clean the elements - regardless of brand from my perspective. I think that the PJ-1 is a better filtration oil also. I use it in my K&Ns and Maxys. Thanks for watching.
Chris hi. You never mentioned how long the bar is, the bar manufacturer, which style of chain, and/or the method of sharpening. Also, the age of all of the equipment was left out. There are a lot of variables here. Assuming you have a 6401 that someone upsized with an am big bore kit as well. Thanks for watching.
@@hotsaws101 it's my saw bought brand new put the Big Bore Kit in it been hanging for almost 10 years never used, less than two tanks through it 20 inch Makita bar full chisel chain 25 degree grind raker set with depth gauge. thanks chris
I am super disappointed in the stock 661 air filter. I literally would not have bought this saw if I knew the stock air filter would let sawdust into the engine. The stock 661 air filter let's saw dust in at the baseplate, so I think any air filter that let's at least as much air in as stock and can also seat well enough that sawdust does not enter the engine would be a good investment.
Awesome video man, do you have any pointers for carb adjustment if I install the maxflo system on my 661 carb? No muffler mod just screen removed. Thanks for your awesome videos and help!
thanks Jack for sharing your knowledge.waching your videos has really helped me make good decisions, I have a Stihl ms 661 cm with a maxy. I would like to change the saw's air filter mount flange to a screw on style. Any ideas what would work would be appreciated?
79attaboy hi. In comparisons, I try to be as fair as a human can be. It took a fair amount of time investment to get there. Probably won't be "just handing over to someone because their charm and good looks". Thanks for watching.
Lorric Logging hi. Since I'm no desidious tree expert, this may be askew. It is a different kind of poplar tree. The poplar & cottonwood share the same Genius but not exactly the same species it seems. This was from a hybridization experimentation project where the trees where grown out in a field, far from any water source. It may have been with Aspen trees since I think they share the same Genius but are a slightly different species. The bark is pretty slick over the entire bole and "white-ish" not gnarly like the Cottonwoods around here. My lovely bride will attending to the back yard burn festivities. Thanks for watching.
hotsaws101 hybrid poplar I’ve heard of, it’s all cottonwood to me. Wet, heavy, burns hot and fast with a lot of ash. Cottonwood here tends to take the edge off your chain. Maybe field grown doesn’t have dust in the bark. Cheap wood for chopping, I get it.
I think that there is some dust in the bark since they grew out in the open and were subject to a lot of wind blasting them year round (dirt & gravel roads right there). My chains don't seem to last in really good cutting form a super long time and I hosed the logs off. It might also be from the "thrashing around" in the dirt during the harvesting process too. I did hit some dirt patches a couple of times in the beginning. That was a start over affair.
@@HubertofLiege my father in law can't get enough of the stuff because NO ONE wants it in western idaho! Shame too, plenty of it. He burns it in the shop.
Bill hi. I better tone it down a bit then. Great thing my neighbors are working people that understand how things work! I'm blessed there. Thanks for listening.
I’ve got Max on my 460 Magnum and 660 and I’m sort of disappointed. Not a net positive especially considering the kit cost and the monster increase in boxy size which makes the saw even harder to handle in tight spots. But for now I’ll stick.
Michael hi. My email is in the description area of most of the videos from the last few years. That is the best, first point of contact for me. Thanks for watching.
Thanks mrs. Jack for helping with this lesson! Man Jack, that saw flat out pulls......and as I'm just getting caught up on videos after a 20 year in the making hunting trip, this is the first video I've watched on these two one ton saw build comparisons since the stock as a rock intro of them! Needless to say I'm more than stocked about these saws and the videos I'm behind on lol. Safe cuttin pard
i know it is kinda randomly asking but does anybody know a good place to stream newly released series online ?
@Blaine Spencer lately I have been using FlixZone. You can find it on google =)
@Marcel Sincere yup, I have been watching on FlixZone for since march myself :)
@Marcel Sincere thank you, I went there and it seems like they got a lot of movies there :) I appreciate it !
@Blaine Spencer No problem =)
Man that thing runs great with either air cleaner on it that's what you call a hot saw there ..nice work brother
Yes, as they taught me in Aviation Maintenance in 1992 Bernoulli's principle. (I know hotsaws101 knows this but some viewers might be interested to learn the following). Where velocity & pressure are inversely proportional to one another. As velocity increases pressure decreases. That's the main reason/forces on how a carburetor operates. As the air goes thru the venturi it gets necked down smaller & smaller like in a funnel & on this K&N filter venturi & the velocity/speed picks up & this causes an area of low pressure in the center area of the venturi & the fuel is sucked out of the float bowl thru channels/tubes/jets etc. & gets metered/mixed with the correct ratio of fuel (Stoichiometric ratio air/gasoline ratio is 14.7:1 & for a gasoline engine is the ideal ratio of air to fuel that burns most all of the fuel with no excess air). Good 3D video how a carb works here on TH-cam: th-cam.com/video/Gkhd-eJk234/w-d-xo.html
How Carburetor Works ( 3D Animation) in Suzuki GS150R Motorcycle
Thanks again for a good comparison and thanks to "Mrs Hotsaws101" for running the tach. Always interesting seeing what these changes do. The numbers are one thing, but the how it feels in the hand is more interesting.
What kind of oil should I be running on my filters. Just ordered the kit. Thanks for the advice!
PJ-1. Your Welcome.
Can I find this “PJ-1” on eBay? I’ll look it up now. I have a “max flow” in the mail from EBay right now. Few more days
Bel Ray oil rocks too
One thing that should considered it that the oiled foam filters stop way more dirt. I've seen lots of fine dust pass right through a k&n. I personally will never run one for the simple reason that they shorten engine life.
Adam hi. They are both supposed to be oiled. Although, I've seen guys that don't.
I ran a lot of K&N filters on my Huskys, on the coast as well as inland (about as dusty as it gets) over quite a few years. I never noticed a problem with fine particulates getting by unless there was a tear/hole/gash in the cotton element.
Part of it is not using mixed gas to clean the elements - regardless of brand from my perspective.
I think that the PJ-1 is a better filtration oil also. I use it in my K&Ns and Maxys.
Thanks for watching.
Nice and interesting test Jack!
I've got a Makita 8401 20 inch bar any suggestions why my bar rails keep clogging with chips number 7 sprocket. Thanks
Chris hi.
You never mentioned how long the bar is, the bar manufacturer, which style of chain, and/or the method of sharpening. Also, the age of all of the equipment was left out. There are a lot of variables here.
Assuming you have a 6401 that someone upsized with an am big bore kit as well.
Thanks for watching.
@@hotsaws101 it's my saw bought brand new put the Big Bore Kit in it been hanging for almost 10 years never used, less than two tanks through it 20 inch Makita bar full chisel chain 25 degree grind raker set with depth gauge. thanks chris
where do you get the adapter for the K&N filter?????
I am super disappointed in the stock 661 air filter. I literally would not have bought this saw if I knew the stock air filter would let sawdust into the engine.
The stock 661 air filter let's saw dust in at the baseplate, so I think any air filter that let's at least as much air in as stock and can also seat well enough that sawdust does not enter the engine would be a good investment.
Awesome video man, do you have any pointers for carb adjustment if I install the maxflo system on my 661 carb? No muffler mod just screen removed. Thanks for your awesome videos and help!
M1089 A2 hi.
I posted a video around 3.5 years ago. Cherry 038 & my carb adjustment method.
Best of luck.
Thanks for watching.
Great video! been curious about the MaxFlow filters
Do you have a model number or brand of that velocity stack by chance? Need one for my 440 and 660. I plan to add the K&N to the fleet.
Brandon hi. It's from the '80s. No idea. Think there are some on eBay. Thanks for watching.
I can not find your k&n velocity stack adapter. Where did you buy it?
Amazing educational videos!!!
Finom1 hi.
I make things sometimes.
There are v-stack options out there. I'd try eBay.
Thanks for watching.
Isn’t that idle high?
Where can I get that adaptor to put a k&n filter on an 881?
Berts hi. Assume you are you talking about a velocity stack?
Have a machinist manufacture one for you. Or might try eBay.
Thanks for watching.
thanks Jack for sharing your knowledge.waching your videos has really helped me make good decisions, I have a Stihl ms 661 cm with a maxy. I would like to change the saw's air filter mount flange to a screw on style. Any ideas what would work would be appreciated?
Bill hi. Grinding & mistakes. Reboot, more grinding.... Not a Simon type operation.
Thanks for watching.
I need a cookie to make a cutting board! Hahah 🙃 Great video Jack, God Bless!
Ballsy with the max flo. I thought you were gonna pick that log up on the second cut.
That was a good test. I would be more interested in what you did to delete the mtronic if you wanted to share your secrets..
79attaboy hi.
In comparisons, I try to be as fair as a human can be.
It took a fair amount of time investment to get there. Probably won't be "just handing over to someone because their charm and good looks".
Thanks for watching.
What do you do with all your cottonwood cookies?
Lorric Logging hi.
Since I'm no desidious tree expert, this may be askew.
It is a different kind of poplar tree. The poplar & cottonwood share the same Genius but not exactly the same species it seems.
This was from a hybridization experimentation project where the trees where grown out in a field, far from any water source.
It may have been with Aspen trees since I think they share the same Genius but are a slightly different species.
The bark is pretty slick over the entire bole and "white-ish" not gnarly like the Cottonwoods around here.
My lovely bride will attending to the back yard burn festivities.
Thanks for watching.
hotsaws101 hybrid poplar I’ve heard of, it’s all cottonwood to me. Wet, heavy, burns hot and fast with a lot of ash. Cottonwood here tends to take the edge off your chain. Maybe field grown doesn’t have dust in the bark. Cheap wood for chopping, I get it.
I think that there is some dust in the bark since they grew out in the open and were subject to a lot of wind blasting them year round (dirt & gravel roads right there).
My chains don't seem to last in really good cutting form a super long time and I hosed the logs off. It might also be from the "thrashing around" in the dirt during the harvesting process too.
I did hit some dirt patches a couple of times in the beginning. That was a start over affair.
@@HubertofLiege my father in law can't get enough of the stuff because NO ONE wants it in western idaho! Shame too, plenty of it. He burns it in the shop.
Gotta love the thrasher k and n.
Do you sell the dogs on that saw?
chris s factory stihl dogs
another great vid!!!
The way @stihl should make a USA available 661! @stihl you listening?
There is no 661 in the States?
I can hear you all the way in la grande!!
Bill hi. I better tone it down a bit then. Great thing my neighbors are working people that understand how things work! I'm blessed there. Thanks for listening.
I’ve got Max on my 460 Magnum and 660 and I’m sort of disappointed. Not a net positive especially considering the kit cost and the monster increase in boxy size which makes the saw even harder to handle in tight spots. But for now I’ll stick.
I would imagine the stack to be the biggest factor in the deal.
Hey jack I am very interested in having you do some work on a couple of stihls I have. Message me back if you are interested.
Michael hi. My email is in the description area of most of the videos from the last few years. That is the best, first point of contact for me.
Thanks for watching.
She rips
I wanna see dueling hotsaws .... I got my money on the mrs loll😉😉👍👍
Sent you a email!