MS 192T Mods

[bvaught]

I just bought my dad a 192t for christmas. I didnt go with the 200t because he is famous for not maintaining anything mechanical, so there is no need to waste money. I am impressed with the 192t as I have tried it out on a few limbs and a 5" oak. It seems to have plenty of juice to do what it was intended for. But I digress.

Before I give it to him for christmas I want to mod the muffler and richen up the saw a bit. Does anyone have any suggestions for how to mod the muffler and do a professional looking job? In addition the owners manual does not list a max RPM setting, does anyone know what that should be?

 

[stump doctor]

I like the 192t for it's very light weight. One quick easy way to mod the muffler for a little more power is to remove the screen. Just be sure to put it back if you use the saw in the summer.

 

[kf_tree]

Just be sure to put it back if you use the saw in the summer.

why is that? i don't have a screen on any of my saw's 365 days a year.

 

[fishhuntcutwood]

I'd guess he's referring to throwing a spark on dry ground and starting a fire...that being the main function of a spark arrestor.

My 200T screen is out, but the rest of my saws have them, as I do cut on DNR and alot of heavily wooded property. They enforce that type of thing around here in timber settings.

Jeff

 

[stump doctor]

why is that? i don't have a screen on any of my saw's 365 days a year.

Here in Oregon if you start a fire the State will bill you for the entire cost to fight the fire. This can often amount to a multi-million dollar bill.
And if they caught you operating a device with out a spark arresster installed I would not even want to speculate on what they would do to you

It happened to someone here who was welding well casings during no burn season. It caught a field on fire and got into some timeber. They got it out very quickly and he was only slapped with a $400,000 fine.

 

[kf_tree]

Here in Oregon if you start a fire the State will bill you for the entire cost to fight the fire. This can often amount to a multi-million dollar bill.
And if they caught you operating a device with out a spark arresster installed I would not even want to speculate on what they would do to you

It happened to someone here who was welding well casings during no burn season. It caught a field on fire and got into some timeber. They got it out very quickly and he was only slapped with a $400,000 fine.

i guess us city climbers don't worry too much about forest fires.

 

[Sizzle-Chest]

When i worked for the forest service in oregon, one of my crew-mates brother was inner-tubing down a river shooting bottle rockets into the timber. Ended up starting a pretty large fire on real rugged ground and he is still working on paying over 1,000,000$ in reparations.

I have a 192T and this sounds like a dumb question I'm sure, but what is this screen and how can i take it off?

 

[TimberPig]

It's the spark arrester screen over the exhaust outlet of the muffler. In order to pull it, you will have to open the muffler up. If you cut on anything where you are working in timber, particularly on government lands, I would leave it in, the fine for not having it is not worth the minute performance increase. Adding a second port, and enlarging the current one, then properly screening both will give better gains.

 

[Sizzle-Chest]

when i worked for the state, part of my job was to give tickets if i ever found people using saws without spark arrest, but i was never told what to look for (not that I would have given people any trouble for that). But I'm not planning on using my little arbor saw in the woods much. . . ever.

 

[bvaught]

It's the spark arrester screen over the exhaust outlet of the muffler. In order to pull it, you will have to open the muffler up. If you cut on anything where you are working in timber, particularly on government lands, I would leave it in, the fine for not having it is not worth the minute performance increase. Adding a second port, and enlarging the current one, then properly screening both will give better gains.

I was hoping someone had already done a "proper" muffler mod and might have pictures or comments about how it was done. I would like to avoid re-inventing the wheel, or perhaps give my personal touch to someones good idea.

Does anyone know the max RPM setting?

 

[fishhuntcutwood]

Does anyone know the max RPM setting?

Not for sure, no. But I woudln't go any higher than 13k-13,500. Tune it by ear, and it'll tell you where it needs to run...but don't go any higher than 13,500 stock.

Jeff