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Author Topic: Removing Spark Screens, Does it make a difference?  (Read 8931 times)

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Offline JOE.G

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Removing Spark Screens, Does it make a difference?
« on: December 25, 2012, 04:04:49 PM »
I hear of people removing the Spark screens, does it make a difference? In Power? In sound? Pros? Cons?

My 562 XP doesn't have one but the rest of the equipment in my sig below does, Should I remove it from any of them? Should I leave it in some of them? Thanks
Husqvarna 562XP Woods Ported .025 pop up MM
Husqvarna Rancher 55 2005
Husqvarna 450 Anniversary Edition 2010
STIHL 009 1998
STIHL HT 131 Pole Saw 2012
STIHL FS 110 R Trimmer 2010
STIHL BR 600 Magnum Blower 2012

Offline sawguy21

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Re: Removing Spark Screens, Does it make a difference?
« Reply #1 on: December 25, 2012, 04:35:06 PM »
They are there for a reason and only affect performance if clogged by carbon deposits. Leave them in if using equipment on public land.
old age and treachery will always overcome youth and enthusiasm

Offline Al_Smith

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Re: Removing Spark Screens, Does it make a difference?
« Reply #2 on: December 25, 2012, 04:58:38 PM »
I'd certainly leave them in the blower trimmer and polesaw .The others are not what a person would call hot runners with exception of the souped up 562 so it probabley wouldn't make that much difference .

Quite frankly though in most cases it does make at least some difference if you retune the carb just a tad richer .Back pressure is back pressure weather it comes from a baffle or a screen .

If you are really concerned about it in many cases you can remove the screen ,cut the hole a little bigger and put the screen back .It would get about the same effect .

Offline JOE.G

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Re: Removing Spark Screens, Does it make a difference?
« Reply #3 on: December 25, 2012, 05:10:53 PM »
I was just wondering, Because I was cleaning up the saws and stuff and pulled them all out to clean them, They were all fine. I'll prob leave them in.
Husqvarna 562XP Woods Ported .025 pop up MM
Husqvarna Rancher 55 2005
Husqvarna 450 Anniversary Edition 2010
STIHL 009 1998
STIHL HT 131 Pole Saw 2012
STIHL FS 110 R Trimmer 2010
STIHL BR 600 Magnum Blower 2012

Offline CTYank

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Re: Removing Spark Screens, Does it make a difference?
« Reply #4 on: December 25, 2012, 05:50:16 PM »
Smokey the Bear will thank you for keeping the spark-arresting screens in place.  8)

Anybody who thinks this has any impact on performance is paranoid or easily suggestible.  :embarassed:
'72 blue Homelite 150
Echo 315, SRM-200DA
Poulan 2400, PP5020, PP4218
RedMax GZ4000, "Mac" 35 cc, Dolmar PS-6100
Husqy 576XP-AT
Tanaka 260 PF Polesaw, TBC-270PFD, ECS-3351B
Mix of mauls
Morso 7110

Offline Al_Smith

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Re: Removing Spark Screens, Does it make a difference?
« Reply #5 on: December 25, 2012, 06:25:37 PM »
A lot of people might disagree with the last part of that statement .For example take a survey of professional arborists who run Stihl 200T's and just see how many leave the screens in .Paranoid or stupid has nothing to do with it .

Offline lumberjack48

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Re: Removing Spark Screens, Does it make a difference?
« Reply #6 on: December 25, 2012, 06:42:42 PM »
When they breath better they run better, that was the first thing to come out of my new saws
There would be a lot less piston scoring, if they would have pulled the screen..
Third generation logger, owner operator, 30 yrs felling experience with pole skidder. I got my neck broke back in 89, left me a quad. The wife kept the job going up to 96.

Offline AdkStihl

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Re: Removing Spark Screens, Does it make a difference?
« Reply #7 on: December 25, 2012, 06:49:30 PM »
Try this....

With your hand approximately 6" away from your face....blow into the palm of your hand as hard as you can.

Now......take a piece of screen......window screen will work(less restrictive than exhaust screen even), and put the screen half way between your face and your hand. Blow into the palm of your hand. Big difference huh!

Unless youre cutting on State land where screens are mandated, remove them.......Your saw will thank you!!
J.Miller Photography

Offline JOE.G

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Re: Removing Spark Screens, Does it make a difference?
« Reply #8 on: December 25, 2012, 07:24:03 PM »
I wonder how many fires the screens really stop?
Husqvarna 562XP Woods Ported .025 pop up MM
Husqvarna Rancher 55 2005
Husqvarna 450 Anniversary Edition 2010
STIHL 009 1998
STIHL HT 131 Pole Saw 2012
STIHL FS 110 R Trimmer 2010
STIHL BR 600 Magnum Blower 2012

Offline Al_Smith

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Re: Removing Spark Screens, Does it make a difference?
« Reply #9 on: December 25, 2012, 07:37:48 PM »
I'm not even certain if you could catch the woods afire in this area if you ran open exhausts .Now there obviously is some concern in some of the western or southern states during times of low humidity so in that case it does have some merit .By the same token however during those fire prone times as I understand it they curtail any work in the woods as a preventative  to wild fires .That all makes  good common sense .

Offline HolmenTree

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Re: Removing Spark Screens, Does it make a difference?
« Reply #10 on: December 25, 2012, 09:09:15 PM »
The Stihl MS200T has a restricter plate attached to its screen which increases the mufflers outlet flow considerable when pulled. So screenless does make a difference on this saw.
Seeing the saw is designed mainly for aerial work above ground, fire hazards are not generally a problem. 
Making a living with a saw since age 16.

Offline CTYank

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Re: Removing Spark Screens, Does it make a difference?
« Reply #11 on: December 26, 2012, 11:23:49 PM »
I'm not even certain if you could catch the woods afire in this area if you ran open exhausts .Now there obviously is some concern in some of the western or southern states during times of low humidity so in that case it does have some merit .By the same token however during those fire prone times as I understand it they curtail any work in the woods as a preventative  to wild fires .That all makes  good common sense .

You might have trouble explaining you action to Maine Forest Service folks, some summers. They're understandably pretty inflexible about perceived threats to the major state industry, by whatever hillbilly modders. I was happy to show a screen in each muffler when asked. That makes real common sense.

No space before periods, still- std 'murican.  :new_year:
'72 blue Homelite 150
Echo 315, SRM-200DA
Poulan 2400, PP5020, PP4218
RedMax GZ4000, "Mac" 35 cc, Dolmar PS-6100
Husqy 576XP-AT
Tanaka 260 PF Polesaw, TBC-270PFD, ECS-3351B
Mix of mauls
Morso 7110

Offline Al_Smith

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Re: Removing Spark Screens, Does it make a difference?
« Reply #12 on: December 27, 2012, 03:51:50 AM »
Perhaps in Maine you have a point regarding the use of screens. However in terms of chainsaw performnce regarding how the engine runs not so.
Period with  space ,product of a not so fat of finger or not so practicular method of typing from a mechanic not an English teacher.  ;)

I can't help but wonder though with the amount of posters who use no punctuation  ,no capitol letters and incorrect spelling why a simple period would be so irksome to anyone.

If it's not too much of a problem since the subject seems to come up  time and time again especially on my posts explain why that is so annoying if you kindly would.

Tell ya what you tell me and I'll tell you in exact details how a two cycle engine works ,that I know. English composition ,it's been a long time since high school . :D

Offline JOE.G

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Re: Removing Spark Screens, Does it make a difference?
« Reply #13 on: December 27, 2012, 10:08:47 AM »
Don't worry I won't bash you for grammar, since mine is awful also. CTYANK so all people that remove the screen from there saw's are Hillbilly's?
Husqvarna 562XP Woods Ported .025 pop up MM
Husqvarna Rancher 55 2005
Husqvarna 450 Anniversary Edition 2010
STIHL 009 1998
STIHL HT 131 Pole Saw 2012
STIHL FS 110 R Trimmer 2010
STIHL BR 600 Magnum Blower 2012

Offline AdkStihl

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Re: Removing Spark Screens, Does it make a difference?
« Reply #14 on: December 27, 2012, 01:38:12 PM »
Don't worry I won't bash you for grammar, since mine is awful also. CTYANK so all people that remove the screen from there saw's are Hillbilly's?

Wonder what he thinks of the one's who remove screens and add extra ports  :D
J.Miller Photography

Offline AdkStihl

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Re: Removing Spark Screens, Does it make a difference?
« Reply #15 on: December 27, 2012, 01:44:35 PM »
Anybody who thinks this has any impact on performance is paranoid or easily suggestible.  :embarassed:

Do you own any 2-cycle stuff? For example: A chainsaw, line trimmer, leaf blower or anything of the like?

Doesnt seem it by the above quoted comment you made.

Sincerely
Backwoods Hillbilly   :-*
J.Miller Photography

Offline Al_Smith

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Re: Removing Spark Screens, Does it make a difference?
« Reply #16 on: December 27, 2012, 04:23:15 PM »
Gee there is no real "backwoods " here so I must be a cornfield hillbilly... ;D

Now on that you can catch a cornfield on fire but they usually do it with a 150 thousand dollar combine... Much weeping and gnashing of teeth when that happens ...

Ha space,three periods  new modern hillbilly English. ;)--or maybe a new form of country ebonics.

Now this could be a great break through in translation because weather speaking the "Queens" English ,Aussie ,Brit or hillbilly we all or should have the written word about the same .By different punctuations it would therefore be very easy to figure out who was who without a specific location or mention of Smoked Suckers.

See all this time people thought I was just another pretty face. Fooled them all.

Offline martyinmi

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Re: Removing Spark Screens, Does it make a difference?
« Reply #17 on: December 27, 2012, 04:58:48 PM »


See all this time people thought I was just another pretty face. Fooled them all.

Al Smith...another pretty face??? Nope, ya never had me fooled! :D

And...with all the names that have been assigned to me over the years I suddenly learn that I am a hillbilly too? fly_smiley
And a hillbilly who punctuates most of the time to boot! smiley_goofy_face
No God, No Peace
Know God, Know Peace!

Offline lumberjack48

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Re: Removing Spark Screens, Does it make a difference?
« Reply #18 on: December 27, 2012, 05:07:09 PM »
Heres a picture of a muffler that my first saws had. There wasn't much backup pressure on this style of muffler. On the 08-S, Stihl we would drill about 8, 3/8" holes in the face of the muffler. This would start a fire real easy, with the muffler up against the tree, add a little Jack Pine moss [FIRE] i had to be real careful. The Homelite muffler was no better. A guy had to be very careful cutting in the summer not to start a fire. I remember the Ranger giving me a lecture, i was 12 yrs old.
I hope I'm not being graded, English wasn't my favorite subject.

 

 
Third generation logger, owner operator, 30 yrs felling experience with pole skidder. I got my neck broke back in 89, left me a quad. The wife kept the job going up to 96.

Offline Al_Smith

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Re: Removing Spark Screens, Does it make a difference?
« Reply #19 on: December 27, 2012, 07:07:07 PM »
Marty Marty Marty tsk,tsk ,tsk. You know you can't start a sentence with an and. Further more you can't end a full sentence with a subject and verb with an exclaimation point .

Now we have to take this more seriously before we both get assigned to write a 500 page essay about the virtues of punctuation or was that being punctual? It gets confusing after a while .< Space ha ha ha !

Lawdy do you have any idea how long it would take an illiterate flat land  hill billy like me who types with one finger to complete such a daunting task? Perhaps if I praticed using two fingers it could be done in half the time . ;D


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