Watch this video to see what a clogged spark arrester screen will cause. Very easy repair. Visit my channel for more repair videos; www.youtube.com... #donyboy73
Dony - Want to thank you for video. Last night I had my MS192TC carb all apart and tonight was searching for new carbs or kits and ran across your video. My screen was clogged 3/4 and now it runs great. It's my dog sled trapping saw and carry it everywhere and use it at 40 below all the time so screen probably gets clogged fast. Just thanking you again. "Yukon Men" Stan from the TV show.
I have never posted a comment on anyone's video ever before but felt like at least saying thank you ! I have the same saw that was doing the same thing for a long time. Wouldn't throttle up, bogging and stalling constantly . It was driving me crazy. I took that screen out and it was plugged solid! I tossed it straight in the trash and the saw runs like new again. Thanks again for sharing!
@fifthward1983 Yes, he should have cleaned and replaced the screen. If you live in an arid area, using a saw without the screen can cause a fire. It starts as a tiny smoldering bit of sawdust and can grow into a flame if the right tender is available. To clean the screen, hold it with a pliers and burn it with a propane torch until it's red hot. Then brush it with either a steel or brass brush and put it back into the saw.
I pulled that screen right out the first week I bought my 192c. I was commercial logging big Hemlock that had branches from top to bottom and the 192 was a lot better limbing than carrying my 440! Right now my 192c starts and quits after primer bulb gas is used up. I am thinking the impulse line because I have checked vent, replaced filter and fuel lines are all good. The carb is a new Stihl OEM replacement. The 192 is a finicky saw even when it runs good. It is light and I like that but I always felt it was an overpriced 170 type saw..got a cheap feel and not as dependable as a pro saw. My 440 has cut since new in 2007...bulletproof! 192 is a different story.
Don, while your videos are highly appreciated, as this one as well, in this case it may be best to clean the spark arrestor and replace it for two reasons. Reason one and perhaps the most important, the spark arrestor functions as a line of defense for fires produced by carbon particles. The second reason is that in many countries, the spark arrestor is REQUIRED due to reason one. Some compressed air or a bit of carburetor clearer will do the job.
When I was working on some Stihl leaf blowers,they had the screw in type of spark arrestor which I cleaned by burning the carbon off with a propane torch. I'm not sure how much oil they were mixing into the fuel at the nursing home my dad used to work at,but they blew a fair bit of smoke with what fuel was in them when I got the 2 stroke equipment to work on,the spark plug was often oily. When the 2 stroke equipment is run on the recommended 50:1 fuel to oil mixture, they barely even blow smoke.
For anyone living in an arid environment, like myself, it's a good idea to clean and reinstall the screen. Don't want to be starting any range fires! To clean, simply burn the screen with a propane torch then brush off the carbon with a wire brush.
Thanks. I've not had a problem with my 192 yet, but good to be forewarned. I'll know where to look, but I'm pretty sure I'll clean and replace the screen.
@th19940305 It stops any sparks from coming out of the muffler. If sparks are allowed to fly out they could hit some saw dust or wood chips and start a fire.
Had this problem a few times with different machines, most new saws have restrictive mufflers and the spark screen just makes things worse. If you're in a country that suffers from bush fires then they will be a legal requirement but you can get round this putting another hole in the muffler and fitting another spark screen which are available separately = DIY dual port muffler
up were i work, fastco, i run into this problem all the time, mostly i get the screen problem with stihl's on the trimmers and chainsaws, but for you who don't know the screens on the stihl trimmers are on the back of the muffler I forget what size socket but you unscrew it and it has a screen on the end of it, clean it or remove it. but up a work im not allowed to remove the screens even if the customer said to its the laws of epa and osha crap.
that`s amazing that it would effect the performance that much.....key to that diagnosis is the muffler tone ? right donyboy.......other wise i would of thought the carb was dirty
Welcome here in Poland because I do not know how in Europe net against spark does not occur in this model , and the silencer has some other outlet for it in the long run a sharp cut plastic on the Rancia blows
This will also make it run lean and reduce the life of the saw... unless you adjust the carb after removing the screen. clean and replace is the way to go for most chainsaw owners.
I wish my problem was so simple. I’ve been chasing this bog issue for some time. Saw is a def a few years old but hasn’t really seen too much use. I’ve removed the jet from the carb and found it to be somewhat plugged. What are you using to clean the jets?….welding tip cleaner kit? Seems some don’t recommend that. What is your solution to clogged jets mate?
my 041 farmboss is having the same problem but i connot remove the muffler and there is no screen, i put in a new spark plug and cleaned out the carb, i have also notice it looks like fuel is getting in the muffler
My trick to clean the screens: get red hot with propane/mapp torch (carefully, low fire). Then, quickly, move to compressed air jet (again, gently, not a lot needed). You will be able to 'move' the oxidizing carbon spot under the air jet around the screen until it is all burned off.
Are you going to replace the screen and what does it affect with it removed. I also ask why they put it on the because I dont understand why it was put on there. Thanks
Hi...and thanks for all the informative videos! I do have a question about a Homelite chainsaw 33cc model number UT10947E The saw starts up fine but the chain brake is in the on position even with the brake in the off position,thus causing the clutch not to move the chain.I have removed the clutch housing to expose the brake components and it appears that the brake is secure around the clutch housing.I can pully back really hard to disengage the brake but it will not release the brake.Thanks!!!
I have a Stihl MS 230 and it has the same behavior as the saw in video. I took off the muffler to check for a spark arrestor..and doesn't have any ..or if it has one, I can't get to it because the muffler is sealed..no screws. What should I do?
Ran a brand new ms170 one season and had trouble early the next. Got a carb online which didn`t change anything. Was very disgusted when I found the screen plugged. Ran a Poulan over 30 years and never plugged up a screen. I didn`t bother checking it at first because it didn`t seem logical to be plugged.
I'm having these same issues yet the boot looks fine. I'm inspecting the fuel lines but is there another cause for it to idling high especially when changing the saw's position?
@donyboy73 actually dony. its time for him to get a new saw. homelites have the chain brake on the inside around the inboard sprocket/clutch. its not worth it to fix a $200 homelite saw. just buy a new one. i have the same saws both the 90s model and the 2004 model 33cc and they both have the chain brake around the sprocket. if i were you, id buy a husqvarna like a 235 or a 435. both have replaceable sprockets and they are the outboard type with the chainbrake on the sprocket cover.
stormtrooperob I've talked to many many fellers...not a single one has EVER heard of a spark from their muffler causing a fire. I take all mine out. I'm not feller but a professional arborist. Other countries don't even have to get them installed because it's stupid.
I am in Florida I am a stihl tech thay are very popular saw the 192 and the 200t wate till you have to put seals in them not fun that are notores fore seals and scored cylinders because of seals
Hi don any chance you might be able to do a video on how to recon a carberetor on a ms 200t chainsaw.. thx... Brian ..i have 2 of these they run like the saw in this video ive cleaned the bottom part of the carb but no joy it was allready clean realy ..thx very much brian from yorkshire England ..
thanks for the reply!...do you have any videos on how to replace the chain brake assembly on a Homelite chainsaw33cc ? or any others? it looks like a time consuming repair..
Hi Donny,I have an old Stihl 041 AV with just the problem you describe. However, the muffler doesn't have a spark arrester (I think), and when I remove the air filter (NEW), the machine works perfectly - idles well and quick throttle response. Any ideas ?
hi there i have a mcculloch 10 10 it has a starting issue and 2 things ive notced are sometimes gas drips out of the exhaust after letting it sit over night and also after letting it sit when you pull it over you can hear compression coming out of the exhaust and it has low compression once it has run that goes away and has great compression also once it is running it runs great and starts good warm any advice would be great
I own a ms201tc with the mtronic and it sort of does this once I’m using it for about half hour it bogs and doesn’t want to rev even though I’m pushing on the throttle, I just had it maintenanced and it’s still doing the same and it’s fairly new please help
ouWld you have the info for disassembling a 191 t or similar? I need to get the oil / gas tanks out. and fix a leak , change fuel line in tank, and a new flywheel,
donyboy do you find that after a while of use without the spark arrestor you have problems keeping your muffler bolts tight, this happens to me everytime you can tighten them up but then they come back lose in a handful of cuts, just wondering if this was just my saw i have just recently tried high heat lock tite to see if it fixes the problem
having that same problem on my ms250 , never thought to just leave it off , hmm not don't live n CA either . Have cleaned them any difference in either method ? good vid Don. Pete
Hey, got a little problem. Have a Husqvarna chainsaw that doesnt start. It has good compression it sparks no play on bearings or damaged seals. But when i put a few drops of gas in it it does nothing..:( You ever had something like that?
I have an older Stihl .041 Farm Boss. Saw ran great until a bang, and then no compression. I have been told I need to replace the Reeds? any suggestion would be appreciated as to if this is the repair and were to get needed parts. Thanks
How do I remove the throttle trigger from stihl 026 it broke where linkage connects to it. Top half broke off. How Toni remove it to replace or do I need whole new handle
Don I have a stihl 009 and the bearings from the big end have fallen out do you have any ideas to put back toghether and also do you have a contact near you that would ship parts to Scotland for chainsaws thanks
Shit I would have took the thing apart.I would have never thought of that. man I have a lot to learn.I'm wanting to get into small engine repair.any good school here in texas
donyboy when you took apart that carb did it have a mounting gasket on the manifold side? or did it go flush against the grommet part of the manifold? whats that tiny hole on the carb facing the manifold? the manifold has a rubber hole that seems to line up with the tiny hole on the carb? on your vids i cant get a good look at it... thanks
That is funny i am a stihl tech I don't get that in my shop I get air leaks scored cylinder mufflers comming loose I have a 192 I have to rebuild know because of play on the crank it must be the oil in Canada and maby the customer is not keeping the revs up
I have one just like it. It will run for a while and then just shut down and not start again for a day.I cant figure it out.I took the screen out of mine also.
Dony - Want to thank you for video. Last night I had my MS192TC carb all apart and tonight was searching for new carbs or kits and ran across your video. My screen was clogged 3/4 and now it runs great. It's my dog sled trapping saw and carry it everywhere and use it at 40 below all the time so screen probably gets clogged fast. Just thanking you again. "Yukon Men" Stan from the TV show.
Stan Zuray stan is that really you?
I have never posted a comment on anyone's video ever before but felt like at least saying thank you ! I have the same saw that was doing the same thing for a long time. Wouldn't throttle up, bogging and stalling constantly . It was driving me crazy. I took that screen out and it was plugged solid! I tossed it straight in the trash and the saw runs like new again. Thanks again for sharing!
you're welcome, make sure you are subscribed
@fifthward1983 Yes, he should have cleaned and replaced the screen. If you live in an arid area, using a saw without the screen can cause a fire. It starts as a tiny smoldering bit of sawdust and can grow into a flame if the right tender is available.
To clean the screen, hold it with a pliers and burn it with a propane torch until it's red hot. Then brush it with either a steel or brass brush and put it back into the saw.
I pulled that screen right out the first week I bought my 192c. I was commercial logging big Hemlock that had branches from top to bottom and the 192 was a lot better limbing than carrying my 440!
Right now my 192c starts and quits after primer bulb gas is used up. I am thinking the impulse line because I have checked vent, replaced filter and fuel lines are all good. The carb is a new Stihl OEM replacement. The 192 is a finicky saw even when it runs good. It is light and I like that but I always felt it was an overpriced 170 type saw..got a cheap feel and not as dependable as a pro saw. My 440 has cut since new in 2007...bulletproof! 192 is a different story.
Don, while your videos are highly appreciated, as this one as well, in this case it may be best to clean the spark arrestor and replace it for two reasons. Reason one and perhaps the most important, the spark arrestor functions as a line of defense for fires produced by carbon particles. The second reason is that in many countries, the spark arrestor is REQUIRED due to reason one.
Some compressed air or a bit of carburetor clearer will do the job.
You can take a plier and hold muffler screen and a wire brush and clean it that way also, and reinstall.
When I was working on some Stihl leaf blowers,they had the screw in type of spark arrestor which I cleaned by burning the carbon off with a propane torch.
I'm not sure how much oil they were mixing into the fuel at the nursing home my dad used to work at,but they blew a fair bit of smoke with what fuel was in them when I got the 2 stroke equipment to work on,the spark plug was often oily.
When the 2 stroke equipment is run on the recommended 50:1 fuel to oil mixture, they barely even blow smoke.
I removed the Spark arrester screen on my Echo weedwacker last winter. It makes the engine more responsive and seems to start a lot easier.
For anyone living in an arid environment, like myself, it's a good idea to clean and reinstall the screen. Don't want to be starting any range fires!
To clean, simply burn the screen with a propane torch then brush off the carbon with a wire brush.
For many saws removing the spark screen is a very effective performance boost but check the legality, in certain areas you can be severely prosecuted.
Thanks. I've not had a problem with my 192 yet, but good to be forewarned. I'll know where to look, but I'm pretty sure I'll clean and replace the screen.
Good info! Mine was doing the same thing. thanks for the vid
good job man from mexico appreciate your knowledge
Thank you for posting this, I think that's what mine must be doing as well, I will check.
My 193T was having the same issue this was the fix...thanks
easy fix, thanks for the video. makes perfect sense as exhaust can escape at low rpms, but backs up with more revs
@PGXI yes and also the poor acceleration
@2clones it gives it a little more power if you leave the screen out
also internal ring washers work good, but the red loctite should do
ths is a great video dony. I know someone who is having this problem.
@th19940305 It stops any sparks from coming out of the muffler. If sparks are allowed to fly out they could hit some saw dust or wood chips and start a fire.
Thank you for your video. You saved mine time.
@inspector1963 umay have to replace the chain brake cover
Had this problem a few times with different machines, most new saws have restrictive mufflers and the spark screen just makes things worse. If you're in a country that suffers from bush fires then they will be a legal requirement but you can get round this putting another hole in the muffler and fitting another spark screen which are available separately = DIY dual port muffler
@inspector1963 it comes all in one piece and just bolt it on
@TDHReviews i have no parts saw for this, best to go to the stihl dealer
check the impulse line, the intake boot for cracks, and you might need a new carb kit
@yowzer99 it's a shop coat dude
up were i work, fastco, i run into this problem all the time, mostly i get the screen problem with stihl's on the trimmers and chainsaws, but for you who don't know the screens on the stihl trimmers are on the back of the muffler I forget what size socket but you unscrew it and it has a screen on the end of it, clean it or remove it. but up a work im not allowed to remove the screens even if the customer said to its the laws of epa and osha crap.
that`s amazing that it would effect the performance that much.....key to that diagnosis is the muffler tone ? right donyboy.......other wise i would of thought the carb was dirty
love your vids,they've saved me a fortune ,please keep it up and,again,thankyou.
check for spark, fuel lines, filter and carb
Welcome here in Poland because I do not know how in Europe net against spark does not occur in this model , and the silencer has some other outlet for it in the long run a sharp cut plastic on the Rancia blows
@ChantryBoys maybe the carb kit
yes
The muffler on 020T looks very different. I removed screws but couldn't figure out how to remove it?? Thanks Ed
Yikes 12yrs! This was my 1st chainsaw is still my only chainsaw. And yeah mine has that problem.
nothing beats a sthil.
@partyboyperk The bar should be flipped occasionally to allow for even wear.
shouldnt you replace or clean the dirty screen ? it does serve a purpose. it was a good vid. i would like to see more of the stihl ms192 chainsaw.
@gasman221001 all new 2 cycle equipment has the screen
This will also make it run lean and reduce the life of the saw... unless you adjust the carb after removing the screen. clean and replace is the way to go for most chainsaw owners.
I wish my problem was so simple. I’ve been chasing this bog issue for some time. Saw is a def a few years old but hasn’t really seen too much use. I’ve removed the jet from the carb and found it to be somewhat plugged. What are you using to clean the jets?….welding tip cleaner kit? Seems some don’t recommend that. What is your solution to clogged jets mate?
@Jdcap26 oh you have a 180 and the 250?
in my state you have to have the spark arrester screen. even on lawn mowers.
not to meantion some people have sensitive ears :(
my 041 farmboss is having the same problem but i connot remove the muffler and there is no screen, i put in a new spark plug and cleaned out the carb, i have also notice it looks like fuel is getting in the muffler
My trick to clean the screens: get red hot with propane/mapp torch (carefully, low fire). Then, quickly, move to compressed air jet (again, gently, not a lot needed). You will be able to 'move' the oxidizing carbon spot under the air jet around the screen until it is all burned off.
Are you going to replace the screen and what does it affect with it removed.
I also ask why they put it on the because I dont understand why it was put on there.
Thanks
Hi Dony, putting 2 new handles on 2 MS201 today!
how's it going
Great Dony, fell off a ladder last week about 8 foot high and hurt my back, I'm getting to old to do this! HAHA
Randi Del Cecato wow be careful
U got that, Thank U! :)
@2clones yea i know.. i thought he made a mistake and put it in upside down
Hi...and thanks for all the informative videos!
I do have a question about a Homelite chainsaw 33cc model number UT10947E
The saw starts up fine but the chain brake is in the on position even with the brake in the off position,thus causing the clutch not to move the chain.I have removed the clutch housing to expose the brake components and it appears that the brake is secure around the clutch housing.I can pully back really hard to disengage the brake but it will not release the brake.Thanks!!!
I have a Stihl MS 230 and it has the same behavior as the saw in video. I took off the muffler to check for a spark arrestor..and doesn't have any ..or if it has one, I can't get to it because the muffler is sealed..no screws. What should I do?
Ran a brand new ms170 one season and had trouble early the next. Got a carb online which didn`t change anything. Was very disgusted when I found the screen plugged. Ran a Poulan over 30 years and never plugged up a screen. I didn`t bother checking it at first because it didn`t seem logical to be plugged.
stihl made alot of saws that style back then.
we worked on a stihl concrete saw and it was a few months oil and the exhaust was full of carbon and the screen was blocked
I'm having these same issues yet the boot looks fine. I'm inspecting the fuel lines but is there another cause for it to idling high especially when changing the saw's position?
@donyboy73 actually dony. its time for him to get a new saw. homelites have the chain brake on the inside around the inboard sprocket/clutch. its not worth it to fix a $200 homelite saw. just buy a new one. i have the same saws both the 90s model and the 2004 model 33cc and they both have the chain brake around the sprocket. if i were you, id buy a husqvarna like a 235 or a 435. both have replaceable sprockets and they are the outboard type with the chainbrake on the sprocket cover.
Eric the car guy sent us here!
welcome
Super funktioniert wieder einwandfrei !
mfg BerlanGermany
Without the screen a hot spark can come out and start a fire. Never run a saw without the screen. Best to clean it or buy a new one.
stormtrooperob I've talked to many many fellers...not a single one has EVER heard of a spark from their muffler causing a fire. I take all mine out. I'm not feller but a professional arborist. Other countries don't even have to get them installed because it's stupid.
I am in Florida I am a stihl tech thay are very popular saw the 192 and the 200t wate till you have to put seals in them not fun that are notores fore seals and scored cylinders because of seals
Fantastic tip. Thanks!
Hi don
any chance you might be able to do a video on how to recon a carberetor on a ms 200t chainsaw.. thx... Brian ..i have 2 of these they run like the saw in this video ive cleaned the bottom part of the carb but no joy it was allready clean realy ..thx very much brian from yorkshire England ..
Soaking the screen in automatic transmission fluid will break down the build up of carbon. Without a screen, you may get an ember in your shoe.
thanks for the reply!...do you have any videos on how to replace the chain brake assembly on a Homelite chainsaw33cc ? or any others?
it looks like a time consuming repair..
Hi Donny,I have an old Stihl 041 AV with just the problem you describe. However, the muffler doesn't have a spark arrester (I think), and when I remove the air filter (NEW), the machine works perfectly - idles well and quick throttle response. Any ideas ?
very well explained
hi there i have a mcculloch 10 10 it has a starting issue and 2 things ive notced are sometimes gas drips out of the exhaust after letting it sit over night and also after letting it sit when you pull it over you can hear compression coming out of the exhaust and it has low compression once it has run that goes away and has great compression also once it is running it runs great and starts good warm any advice would be great
ha ha ha did u notice the bar was backwards @ 3:08 lol
thanks soo much it worked!
I own a ms201tc with the mtronic and it sort of does this once I’m using it for about half hour it bogs and doesn’t want to rev even though I’m pushing on the throttle, I just had it maintenanced and it’s still doing the same and it’s fairly new please help
Hi ihave a stihl ms250 trying to reassemble the chain brake haviing problems could you please help me thanks
Excellent video, but wouldn't you just clean it and reinstall after cleaning?
ouWld you have the info for disassembling a 191 t or similar? I need to get the oil / gas tanks out. and fix a leak , change fuel line in tank, and a new flywheel,
donyboy do you find that after a while of use without the spark arrestor you have problems keeping your muffler bolts tight, this happens to me everytime you can tighten them up but then they come back lose in a handful of cuts, just wondering if this was just my saw i have just recently tried high heat lock tite to see if it fixes the problem
having that same problem on my ms250 , never thought to just leave it off , hmm not don't live n CA either . Have cleaned them any difference in either method ? good vid Don. Pete
Hey, got a little problem.
Have a Husqvarna chainsaw that doesnt start.
It has good compression it sparks no play on bearings or damaged seals.
But when i put a few drops of gas in it it does nothing..:(
You ever had something like that?
I have an older Stihl .041 Farm Boss. Saw ran great until a bang, and then no compression. I have been told I need to replace the Reeds? any suggestion would be appreciated as to if this is the repair and were to get needed parts. Thanks
take the muffler off to see if the piston and rings are scored
donyboy73
Right, Then what?
I have a old chainsaw that i found in a old shed and it wont start and i have no idea where to start. Help please
How do I remove the throttle trigger from stihl 026 it broke where linkage connects to it. Top half broke off. How Toni remove it to replace or do I need whole new handle
Thanks so much for this video, it was a big help to me.
Do you suggest carb tuning after removing the screen or will the factory settings be ok?
should be ok just the way it is
Hi what size combi spanner did you use?
Good stuff, thanks for posting!
thanks casey
Same symptoms but not my screen. What else can cause the same problem, only worse? Mine dies when I accelerate it.
you may have to turn out the L & H screws until it can accelerate
can you comment of do a video on removing the spark plug on this ms192t
Don I have a stihl 009 and the bearings from the big end have fallen out do you have any ideas to put back toghether and also do you have a contact near you that would ship parts to Scotland for chainsaws thanks
i need a few parts for this saw including muffler, bar and chain, misc screws
do u have a parts saw to sell me some parts?
do all small engines have the screen?
My chainsaw cannot idle, icleaning everything carb, clogged etc.can you give me the trick
Shit I would have took the thing apart.I would have never thought of that.
man I have a lot to learn.I'm wanting to get into small engine repair.any good school here in texas
Isn't it dangerous to run it without the spark arrestor ?
donyboy when you took apart that carb did it have a mounting gasket on the manifold side? or did it go flush against the grommet part of the manifold? whats that tiny hole on the carb facing the manifold? the manifold has a rubber hole that seems to line up with the tiny hole on the carb? on your vids i cant get a good look at it... thanks
from what I remember there is no mounting gasket
How to change the handle
thank you.
Omg instant fix thanks
Happy to help
That is funny i am a stihl tech I don't get that in my shop I get air leaks scored cylinder mufflers comming loose I have a 192 I have to rebuild know because of play on the crank it must be the oil in Canada and maby the customer is not keeping the revs up
@rebela2111 thats what i meant just couldn't think of the word
I have one just like it. It will run for a while and then just shut down and not start again for a day.I cant figure it out.I took the screen out of mine also.
Help! I have a stihl chainsaw that burns through gas in 10mins, I can't figure out what's wrong with it
Hum! Now why did they put that screen on there any how.don't need right