661 FTW. Mine is stock with an Egan Straight Shot muffler. She rips with the oiler wide open on 36" bar with full chisel chain grind. Switching to 25" bar and 8 tooth drive sprocket later this summer for firewood. :-)
local saw shop recommended against it here (2017). to many were coming back(I think fuel issues). he said wait a year or two for stihl to work out the problem. picked up a 461, nice saw but not as strong as my 660. as of last year I only knew of one cutter that had one. probably 8 or more companies working for mills here. retired last winter so I don't know if things changed. good video
I ran both my 660 and new 661 back to back earlier at the Connecticut gtg and Julian is 100% correct in this video. 661 in stock form walks allover the 660. I'm Hooked! The 661 is way better ,smooth in the cut, better a/v better fuel economy, way better throttle response. Just a pleasant saw to run.
Old video so who knows the answer? Was the baffling around the cylinder exhaust port in the rear muffler section removed or modified? In stock form the 660 is very restricted and choked up in that area. IMHO it would not matter how many ports are in the front cover if the OEM baffling around the cylinder exhaust port has not been removed. The 660 sounds like it is a bit rich. I have respect for the the man that did this video. He did a lot to further the interest in his favorite chainsaw brand.
Wow - those results....just wow ---- ive always been somewhat against computer controlled machines but the 661 seems to really be amazing now - and your videos are awesome too! HalleluYah
i have a 395xp --- im really curious how the next 395 will run whenever it comes out with the autotune --- but as it stands if my big saw blows up im getting a 661!!!!
My 066 magnum was able to make giant drink coasters out of a Hard Black Maple that was 31" inside the bark and it completed the cut in 45 seconds, so possibly the 660 model wasn't as hot as either an older 7.6 hp 066 magnum or the new 661.
The old 066 is an awesome saw all around,can’t beat ‘em. I run a 32” Cannon bar on mine with a bark box,nothing else,bone stock. I also have an 038 Magnum 2 that I use for the smaller wood. Greetings from British Columbia
I have both saw and my 660 isn't much slower than my 661, 2 or 3 seconds . New chains aren't sharp, once I get a new chain I file it and there is a big difference in cut.
Yours is one of the best comparison videos that I've seen of course the only person that really knows is the person running the saw you seem to rock the saws about the same but I could take those two saws and make 1 go slower by bogging it down with the tiny bit more pressure which would make a difference in time anybody who's ran a big saw with the Big Chain knows what I'm talking about however if I was going to run a saw every day for my job there's no question which one I would be running everyday but because I bought one for fun and to make a few things I paid around $400 for a 52 inch chain and bar and a brand new saw that tears it up. But like I said if I did it for a living I wouldn't be buying the name brand
I like all testing you do on all saws. My next saw I’ll be purchasing will either be MS 660 or 661 I know 661is quicker in the cut and has more power but not sure If it’s as reliable like 660 there’s been lots of comments made about M Tronic not been reliable in 661.
I've seen lots of comments about carb problems in all kinds of saws, does that make you not buy one with regular carb? Manufacturing or reliability problems are rare to begin with, and extremely rare due to a physical or electronic failure for both the mtronic and regular carb. Most issues almost always come from stale fuel. An m-tronic carb is still a regular carb with a solenoid attached, its not a nuclear reactor, you change the rubber parts and membranes just like any other carb. Same story about 500i, people talking that its not PROVEN reliable yet because its "new" tech and muh computer. Yea, new since 2012 when they first put it in their concrete cutter, water and dust galore and the electronics didn't give a damn. Car has electronically controlled injection since the 1990s yet nobody even thinks it's not reliable. That being said, I'd go mtronic. Not touching a regular carb ever again, its just too nice having a perfect mixture and torque, at all times. No screwdriver involved.
how can a saw with a shorter stroke produce more torque if both have the same compression ratio? the laws of physics would say that the longer lever would produce more torque given the equal amount of pressure. i would like some one who can explain this to answer since i don't want a response from some one who knows nothing about physics
I don't think that the ms660 was given a chance to show its full strength, because it can be seen that at some point near the middle of the tree, the throttle is forced and reduced and thus slows down. it has never lost power if it is done correctly. Maybe the advertisement for ms661 is looking for such results. 😉
Idk, a simple muffler mod helps the saw run cooler and better. Which helps the saw live longer. The EPA forces saw companies to meet emissions regulations that hurt the longevity of the saw
Ray Morrison even if you don’t wanna really mess with anything. Just take your spark arrest or out. That alone is an easy thing to remove without any issue and is completely replaceable. It also helps it breath.
i think these saw test are not a true test ...the engines are the same and i own a 066 that i custom built myself and it eat that 661 i believe its the bar and chain and the sprocket your using.. maybe im wrong but i dont cutting a log and see how long it takes to cut is an exact test method.
well known/documented...common knowledge on the chainsaw forums at this point that the 661 walks all over 066 660s on the long bar. 661 just has more torque.
Actually that 660 was leaned out near perfect and ripped with the ported muffler! Still a beast of a saw. The 661's have the torque advantage for long pulls like that however.
@@grahamdeere9475 I'm not too sure about that the auto-tune by Stihl sucks and also a dual Port exhaust I lost a lot of torque I gained more speed but lost torque I would put my 660 up against Auto tune any day!! If tuned right the 660 will definitely out cut it!! I've had both and work on them both in a daily basis I would throw the mtronic in the trash 🗑️
@@TheWoodsmanMilling I sold it last summer. Bought a 572. I just bought it back last Saturday. Need it for milling. I found it in a guys shop. He cut down a few big trees and set it in the corner. Ain't gonna tell ya what it cost me. I can tell you I sold it a 3 bars for 1000. Bought it back for that.
Could not agree more. There is a NON-M TRONIC MS661 available here in the U.S. by special order from your local Stihl dealer! I'm a timber cutting contractor, have two MS661 M TRONIC's and have had nothing but trouble with these saws. They bog off of idle, die at idle and the shroud mounting falls apart in a matter of days. They are very smooth, have great top end power and good fuel economy. I'm currently running an MS660 and never pick up a 661 unless I absolutely have to. Just so you know, I have upgraded the carb, ignition module and fuel solenoids on the 661's and they still bog coming off of idle and sometimes just die sitting there idling. I plan on getting the non-MTRONIC 661 next logging season.
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661 FTW. Mine is stock with an Egan Straight Shot muffler. She rips with the oiler wide open on 36" bar with full chisel chain grind. Switching to 25" bar and 8 tooth drive sprocket later this summer for firewood. :-)
Getting mine for Christmas
Those are beautiful logs. You definitely want 660 or 661 to buck those.
local saw shop recommended against it here (2017). to many were coming back(I think fuel issues). he said wait a year or two for stihl to work out the problem. picked up a 461, nice saw but not as strong as my 660. as of last year I only knew of one cutter that had one. probably 8 or more companies working for mills here. retired last winter so I don't know if things changed. good video
Of course the 461 won't have the displacement of the 660! Can't cheat displacement
I ran both my 660 and new 661 back to back earlier at the Connecticut gtg and Julian is 100% correct in this video. 661 in stock form walks allover the 660. I'm Hooked! The 661 is way better ,smooth in the cut, better a/v better fuel economy, way better throttle response. Just a pleasant saw to run.
Old video so who knows the answer?
Was the baffling around the cylinder exhaust port in the rear muffler section removed or modified? In stock form the 660 is very
restricted and choked up in that area.
IMHO it would not matter how many ports are in the front cover if the OEM baffling around the cylinder exhaust port has not been removed.
The 660 sounds like it is a bit rich.
I have respect for the the man that did this video. He did a lot to further the interest in his favorite chainsaw brand.
If you check out his other video on 661 mufflers.I'm pretty sure he would have it removed in this video.
Wow - those results....just wow ---- ive always been somewhat against computer controlled machines but the 661 seems to really be amazing now - and your videos are awesome too! HalleluYah
i have a 395xp --- im really curious how the next 395 will run whenever it comes out with the autotune --- but as it stands if my big saw blows up im getting a 661!!!!
yep replaced all my 66s with 661s. no problems.
Mastermind 661 best saw ever
The notorious 660/1 whistle
My 066 magnum was able to make giant drink coasters out of a Hard Black Maple that was 31" inside the bark and it completed the cut in 45 seconds, so possibly the 660 model wasn't as hot as either an older 7.6 hp 066 magnum or the new 661.
The old 066 is an awesome saw all around,can’t beat ‘em. I run a 32” Cannon bar on mine with a bark box,nothing else,bone stock. I also have an 038 Magnum 2 that I use for the smaller wood. Greetings from British Columbia
I have both saw and my 660 isn't much slower than my 661, 2 or 3 seconds . New chains aren't sharp, once I get a new chain I file it and there is a big difference in cut.
Ok, where can I find the third port to rivet on?
Yours is one of the best comparison videos that I've seen of course the only person that really knows is the person running the saw you seem to rock the saws about the same but I could take those two saws and make 1 go slower by bogging it down with the tiny bit more pressure which would make a difference in time anybody who's ran a big saw with the Big Chain knows what I'm talking about however if I was going to run a saw every day for my job there's no question which one I would be running everyday but because I bought one for fun and to make a few things I paid around $400 for a 52 inch chain and bar and a brand new saw that tears it up. But like I said if I did it for a living I wouldn't be buying the name brand
owned 5 660s and an 066. sold em all after running the 661 for a month.
@ Don Hunt What is the power head you are using for your 52 inch bar? It must be a big one...
You should make a video of you "tearing it up" would love to see that!!!! The guy doing the comparison is about as non bias as they come?
First off my autocorrect changed my would to a wouldn't. What I actually said was if I did it for a living I would Buy name brand
@@vincentmichaels7495 I got a 660 that I run the 52 in on. Obviously that's very rare occasions usually I run a 32
hae oils 20 ml 1 Litre Benzin ?
Where does the big difference come from? They're the same displacement, so is it the electronic aspect that makes the 661 faster?
port timing, the mtronic, different size bore 56mm 661 vs 54mm 660 maybe?
The 661 has faster chain speed in the cut. It even produced bigger chips. I don't know why,it just did.
Awesome saw the 661. The throttle responce stock is amazing
😮 mantap
I like all testing you do on all saws.
My next saw I’ll be purchasing will either be
MS 660 or 661 I know 661is quicker in the cut and has more power but not sure If it’s as reliable like 660 there’s been lots of comments made about M Tronic not been reliable in 661.
There's a version of the 661 without the Mtronic now.
I have the non Mtronic 661. Favorite saw. Grin every time I use it.
I've seen lots of comments about carb problems in all kinds of saws, does that make you not buy one with regular carb? Manufacturing or reliability problems are rare to begin with, and extremely rare due to a physical or electronic failure for both the mtronic and regular carb. Most issues almost always come from stale fuel. An m-tronic carb is still a regular carb with a solenoid attached, its not a nuclear reactor, you change the rubber parts and membranes just like any other carb. Same story about 500i, people talking that its not PROVEN reliable yet because its "new" tech and muh computer. Yea, new since 2012 when they first put it in their concrete cutter, water and dust galore and the electronics didn't give a damn. Car has electronically controlled injection since the 1990s yet nobody even thinks it's not reliable.
That being said, I'd go mtronic. Not touching a regular carb ever again, its just too nice having a perfect mixture and torque, at all times. No screwdriver involved.
how can a saw with a shorter stroke produce more torque if both have the same compression ratio? the laws of physics would say that the longer lever would produce more torque given the equal amount of pressure. i would like some one who can explain this to answer since i don't want a response from some one who knows nothing about physics
@peace out j6rrtddhdjdit
Rkdkeoeisghk
There is much more to engine performance, aspecially 2 stroke, than the bore size alone.
I don't think that the ms660 was given a chance to show its full strength, because it can be seen that at some point near the middle of the tree, the throttle is forced and reduced and thus slows down. it has never lost power if it is done correctly. Maybe the advertisement for ms661 is looking for such results. 😉
Comment puis-je l'avoir ?
Iya good 660
M tronic failed me not again expensive fix
To me that proves is better leave the saw alone and let it run stock than do anything to the engine
Idk, a simple muffler mod helps the saw run cooler and better. Which helps the saw live longer. The EPA forces saw companies to meet emissions regulations that hurt the longevity of the saw
Ray Morrison even if you don’t wanna really mess with anything. Just take your spark arrest or out. That alone is an easy thing to remove without any issue and is completely replaceable. It also helps it breath.
@@FishFind3000 not here in the south west mtn regions... fire danger... spark arrestor screens are a must!
i think these saw test are not a true test ...the engines are the same and i own a 066 that i custom built myself and it eat that 661 i believe its the bar and chain and the sprocket your using.. maybe im wrong but i dont cutting a log and see how long it takes to cut is an exact test method.
Eu gosto mais do 660 corta mais tem mais giro acho 661 muito lento
661 una decepción , no aguanta el trabajo duro . Lastima q ya no hay la 660 q trabaja x12 horas, y tiene para más. 661 8 horas se apaga
Hello
Siberian elm
thanks!
Sorry but 660 was not running 100%
well known/documented...common knowledge on the chainsaw forums at this point that the 661 walks all over 066 660s on the long bar. 661 just has more torque.
Actually that 660 was leaned out near perfect and ripped with the ported muffler! Still a beast of a saw. The 661's have the torque advantage for long pulls like that however.
Redbull661 880 bảo nhiêu tiền
@@grahamdeere9475 I'm not too sure about that the auto-tune by Stihl sucks and also a dual Port exhaust I lost a lot of torque I gained more speed but lost torque I would put my 660 up against Auto tune any day!! If tuned right the 660 will definitely out cut it!! I've had both and work on them both in a daily basis I would throw the mtronic in the trash 🗑️
non tagliaaaa
I guess I'll junk my 660
I'd buy it if it's in good condition
@@TheWoodsmanMilling I sold it last summer. Bought a 572. I just bought it back last Saturday. Need it for milling. I found it in a guys shop. He cut down a few big trees and set it in the corner. Ain't gonna tell ya what it cost me. I can tell you I sold it a 3 bars for 1000. Bought it back for that.
Já usei essa moto Serra 660 e melhor
Funny our 660 is our best cutting saw while all the m tronic crap runs like shit
Could not agree more. There is a NON-M TRONIC MS661 available here in the U.S. by special order from your local Stihl dealer! I'm a timber cutting contractor, have two MS661 M TRONIC's and have had nothing but trouble with these saws. They bog off of idle, die at idle and the shroud mounting falls apart in a matter of days. They are very smooth, have great top end power and good fuel economy. I'm currently running an MS660 and never pick up a 661 unless I absolutely have to.
Just so you know, I have upgraded the carb, ignition module and fuel solenoids on the 661's and they still bog coming off of idle and sometimes just die sitting there idling. I plan on getting the non-MTRONIC 661 next logging season.