Monstrosity
ArboristSite Lurker
Haven't heard much positive feedback on the new 193T. Picked up 2 new 192's today (last 2 my dealer had on the shelf). Guy said he didn't think he'd be getting anymore 192's in, but 193's would be there soon.
Introducing the Stihl MS193T
- Thread starter blsnelling
- Start date
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KenJax Tree
Terraphobic
My dealer still has a couple 192's
Monstrosity
ArboristSite Lurker
Got a pretty good deal....$275 ea
$75, including return shipping.
stubnail67
Addicted to ArboristSite
have you done a 192 brad?
Eamorip
New Member
I've got a brand new Stihl MS193T here for some simple mods. I ran the saw stock, modded the muffler and ran it again, then advanced the timing and ran it one last time.
The first thing I did was to trim the limiters on the fully adjustable carb. I made several cuts in the wood to tune the carb before each video was shot.
In stock configuration, the saw was very lazy, with very poor throttle response, poor spool up, and quite weak in the cut. It had trouble starting the chain moving if it was already in the cut.
Modding the muffler made a HUGE difference. I'm talking great throttle response, much improved spool up, and much more power. Cut times were reduced by 20%!
I then proceeded to advance the ignition timing 6°. I didn't get the gains that I do on some other saws, but it did seem to hold more RPMs in the cut. Unfortunately, my log was getting bigger as I approached a not, so the cut times don't reflect the improvement. I'm leaving it advanced, based on how it ran and held RPMs in the cut.
Even with only a muffler mod, this little saw runs pretty good. Not bad at all. It's not a 201T, but it's not supposed to be.
Stock
Muffler Modded
Timing Advanced
Yeah baby! This one's a Magnum! I bet that decal adds 1/2 HP!
Same choke setup as the MS150T
Trimmed limiters
The piston is way down in there.
Deflector removed
The exit hole is no large than the head of that little bolt. No wonder it couldn't run.
He said he wanted it loud, so let's open that baby up, lol. The deflector will limit it back down anyway.
Spark arrestor reinstalled.
The back of the stock deflector.
Bent up for more open area.
And that's it!
Eamorip
New Member
I've got a brand new Stihl MS193T here for some simple mods. I ran the saw stock, modded the muffler and ran it again, then advanced the timing and ran it one last time.
The first thing I did was to trim the limiters on the fully adjustable carb. I made several cuts in the wood to tune the carb before each video was shot.
In stock configuration, the saw was very lazy, with very poor throttle response, poor spool up, and quite weak in the cut. It had trouble starting the chain moving if it was already in the cut.
Modding the muffler made a HUGE difference. I'm talking great throttle response, much improved spool up, and much more power. Cut times were reduced by 20%!
I then proceeded to advance the ignition timing 6°. I didn't get the gains that I do on some other saws, but it did seem to hold more RPMs in the cut. Unfortunately, my log was getting bigger as I approached a not, so the cut times don't reflect the improvement. I'm leaving it advanced, based on how it ran and held RPMs in the cut.
Even with only a muffler mod, this little saw runs pretty good. Not bad at all. It's not a 201T, but it's not supposed to be.
Thanks for all the information and photos, I'm hoping to buy myself a top handle saw soon, both the 192 and 193 are still available here in Spain where I live and I was having some doubts about the 193 due to some negative comments I've come across on the site and elsewhere on the web. l spoke to my local Stihl dealer's mechanic and he reckoned that the 193 had a few structural improvements on the 192 which has a very good reputation here, he said some of his clients who are pros using both models had found the 193 just as reliable and powerful as the 192 and a bit more torquey in stock form?What do you think? you seemed to really wake up your saw with the mods you've made. Any chance you could post some photos of what you did to the carb, the muffler mod is very clear but the work with the plastic limiting plugs is a total mystery to me and i'd love to learn how to do it to my own saw when I pick it up later this week,
Thanks again,
Eamo
Stock
Muffler Modded
Timing Advanced
Yeah baby! This one's a Magnum! I bet that decal adds 1/2 HP!
Same choke setup as the MS150T
Trimmed limiters
The piston is way down in there.
Deflector removed
The exit hole is no large than the head of that little bolt. No wonder it couldn't run.
He said he wanted it loud, so let's open that baby up, lol. The deflector will limit it back down anyway.
Spark arrestor reinstalled.
The back of the stock deflector.
Bent up for more open area.
And that's it!
stubnail67
Addicted to ArboristSite
good read even the 2nd time round.....
If your memory is like mine, a 3rd time might be required, lol.
stubnail67
Addicted to ArboristSite
I've got a brand new Stihl MS193T here for some simple mods. I ran the saw stock, modded the muffler and ran it again, then advanced the timing and ran it one last time.
The first thing I did was to trim the limiters on the fully adjustable carb. I made several cuts in the wood to tune the carb before each video was shot.
In stock configuration, the saw was very lazy, with very poor throttle response, poor spool up, and quite weak in the cut. It had trouble starting the chain moving if it was already in the cut.
Modding the muffler made a HUGE difference. I'm talking great throttle response, much improved spool up, and much more power. Cut times were reduced by 20%!
I then proceeded to advance the ignition timing 6°. I didn't get the gains that I do on some other saws, but it did seem to hold more RPMs in the cut. Unfortunately, my log was getting bigger as I approached a not, so the cut times don't reflect the improvement. I'm leaving it advanced, based on how it ran and held RPMs in the cut.
Even with only a muffler mod, this little saw runs pretty good. Not bad at all. It's not a 201T, but it's not supposed to be.
Stock
Muffler Modded
Timing Advanced
Yeah baby! This one's a Magnum! I bet that decal adds 1/2 HP!
Same choke setup as the MS150T
Trimmed limiters
The piston is way down in there.
Deflector removed
The exit hole is no large than the head of that little bolt. No wonder it couldn't run.
He said he wanted it loud, so let's open that baby up, lol. The deflector will limit it back down anyway.
Spark arrestor reinstalled.
The back of the stock deflector.
Bent up for more open area.
And that's it!
Just what i wanted to read!!!!
stubnail67
Addicted to ArboristSite
I just read it a 3rd time LOL.... I forgot half of what i read when you posted it
LoveStihlQuality
Addicted to ArboristSite
As seen in YouTube videos Alex Vargas.....Too soon Brad?
Sent from my SM-N900P using Tapatalk
I realize I'm bumping an old thread, but I just picked up a new MS193T from my local dealer and planned to mod the muffler but I was curious to find it already hollowed out from the factory. So I just vented the exhaust deflector, replaced the spark arrestor, and buttoned her back up. I'm wondering if I'll still need to adjust the carb and the timing, and trim the limiters. Only worry I have is if the heat from the vents will melt the plastic face plate but I don't imagine running this little guy to the point where it gets that hot. If it becomes an issue, I'll trim the slots open or maybe mask it all off and coat the plastic grid with high-heat enamel.
Thoughts?
The shop tried to sell it to me with a 16" bar and .050" chain but I had them swap on a 12" b/c instead. I've got an old 011AVT with 14" and 16" bars; everything's swappable, so I'm planning to move the 14" b/c over to the 193T and put the new 16" b/c back on the 011AVT. I like the 12" bar but could use a little extra reach when climbing and topping, which is why I bought the 193T. I was using my 011 to climb but it's just too heavy to be efficient as a one-handed saw.
Thoughts?
The shop tried to sell it to me with a 16" bar and .050" chain but I had them swap on a 12" b/c instead. I've got an old 011AVT with 14" and 16" bars; everything's swappable, so I'm planning to move the 14" b/c over to the 193T and put the new 16" b/c back on the 011AVT. I like the 12" bar but could use a little extra reach when climbing and topping, which is why I bought the 193T. I was using my 011 to climb but it's just too heavy to be efficient as a one-handed saw.
Yes, that will melt the plastic. The carb should ALWAYS be tuned after ANY change.
Right, I'll address both before I call it good. Also, do you think opening the rest of the muffler up to the edges of the port would make any significant difference? And what of trimming the limiters?
Thanks!
Good morning all
I would like to have some details for the adjustment of the carburetor after modification of the exhaust.
I followed the procedure provided by brad blsnelling
screw adjustment L at max rpm
LA screw adjustment at 3500 rpm
then screw adjustment L counterclockwise at 3000 rpm
and adjustment screw H at 12000 rpm + 1/2 turn clockwise
with this setting the machine is very soft, slow to accelerate, not very nervous
on the other hand if I leave with the screw L set at 3500 rpm, the acceleration is frank and fast
what should I do?
Is there a risk of leaving the screw L at 3500 rpm without reducing it anticlokwise to 3000 rpm?
Thank you for your help
I would like to have some details for the adjustment of the carburetor after modification of the exhaust.
I followed the procedure provided by brad blsnelling
screw adjustment L at max rpm
LA screw adjustment at 3500 rpm
then screw adjustment L counterclockwise at 3000 rpm
and adjustment screw H at 12000 rpm + 1/2 turn clockwise
with this setting the machine is very soft, slow to accelerate, not very nervous
on the other hand if I leave with the screw L set at 3500 rpm, the acceleration is frank and fast
what should I do?
Is there a risk of leaving the screw L at 3500 rpm without reducing it anticlokwise to 3000 rpm?
Thank you for your help
I would tune the L mixture that it spools up quickly without bogging or beeing to rich or to lean. You have to test for yourself what the engine likes best. On a modded saw you can`t go with the stock settings. Also the idle should be deep enough that the clutch is not slipping.
