Stihl MS 192T Top Handle Saw

[PapaWhitebeard]

Tygon stinks, but it may work for a test.

Maybe dumb but honest question: does tygon actual smell bad or are you saying tygon sux ?maybe because it isn’t rigid enough?

(I only ask because I want to know. And the KTM and brembo engineers who used to build my race bikes love love love/demanded using tygon for brake fluid reservoirs… and I somehow don’t have the ability to smell (true story… (shrug) I can taste things but I can’t smell anything… long story))

But curious about tygon limitations because pretty much all my motorcycle brake res are connected using German tygon from brembo… and I like having brakes )

 

[lone wolf]

Maybe dumb but honest question: does tygon actual smell bad or are you saying tygon sux ?maybe because it isn’t rigid enough?

(I only ask because I want to know. And the KTM and brembo engineers who used to build my race bikes love love love/demanded using tygon for brake fluid reservoirs… and I somehow don’t have the ability to smell (true story… (shrug) I can taste things but I can’t smell anything… long story))

But curious about tygon limitations because pretty much all my motorcycle brake res are connected using German tygon from brembo… and I like having brakes )

It kinked shortly after I tried it on a saw, so I never used it again.

 

[PapaWhitebeard]

It kinked shortly after I tried it on a saw, so I never used it again.

Ahhh yeah thanks makes sense. It’s too soft for stuff like that for sure.

Appreciate the response!!!

Edit: although they make it in all kinds of wall thicknesses and not all Tyron is created equal—the Austrian techs told me the Tygon tubing on Amazon is from China and either fake or super low quality. *real* high quality tygon is super duper expensive and I only was able to get it from the KTM techs—I use it for low-pressure fuel lines on my 60’s motorcycles. I once bought some on off Amazon and it turned yellow and kinked and failed almost instantly.

 

[sean donato]

Ahhh yeah thanks makes sense. It’s too soft for stuff like that for sure.

Appreciate the response!!!

Edit: although they make it in all kinds of wall thicknesses and not all Tyron is created equal—the Austrian techs told me the Tygon tubing on Amazon is from China and either fake or super low quality. *real* high quality tygon is super duper expensive and I only was able to get it from the KTM techs—I use it for low-pressure fuel lines on my 60’s motorcycles. I once bought some on off Amazon and it turned yellow and kinked and failed almost instantly.

Tygon (real Tygon.) Is only made in the usa by saint gobain. The fuel and brake versions arnt the same formulation. So any reasons we don't like it for saws wouldn't be specifically applicable or comparable to the brake fluid hose you've used. Kinda apples to cinder blocks. Having said that, stihl makes a superior fuel line (that we can't seem to buy in bulk any more.) And echo makes a superior fuel line too. (That is readily available in bulk.)

 

[PapaWhitebeard]

Tygon (real Tygon.) Is only made in the usa by saint gobain. The fuel and brake versions arnt the same formulation. So any reasons we don't like it for saws wouldn't be specifically applicable or comparable to the brake fluid hose you've used. Kinda apples to cinder blocks. Having said that, stihl makes a superior fuel line (that we can't seem to buy in bulk any more.) And echo makes a superior fuel line too. (That is readily available in bulk.)

I love knowing this stuff. I knew for sure everything on Amazon is fake Tygon. The USA folks who make it must be giving some to Stihl… some to Brembo… some to whoever… and man oh man that real stuff is amazing for its intended purpose—never turns yellow never gets brittle etc.

But this is one of the reasons I like this forum. Great info Sean Donato!

 

[sean donato]

I love knowing this stuff. I knew for sure everything on Amazon is fake Tygon. The USA folks who make it must be giving some to Stihl… some to Brembo… some to whoever… and man oh man that real stuff is amazing for its intended purpose—never turns yellow never gets brittle etc.

But this is one of the reasons I like this forum. Great info Sean Donato!

Stihl doesn't run tygon as far as i know. The fuel line I was referring to was a great "rubber" line. You can still get it, just not in 30 meter bulk amounts any more. Hence the echo line reccomendation. The newer epa( 1100 or 1200, I think it was the 1200 I was using) approved tygon just sucks. Tried it, turns to goo, or gets stiffer then a wedding prick. The stihl and echo line doesn't.
As to brembo, it wouldn't surprise me if they sourced it from S.G. I've tried several different "brands" of tygon, to varying effect. It all just keeps me going back to regular fuel hose.

 

[PapaWhitebeard]

Stihl doesn't run tygon as far as i know. The fuel line I was referring to was a great "rubber" line. You can still get it, just not in 30 meter bulk amounts any more. Hence the echo line reccomendation. The newer epa( 1100 or 1200, I think it was the 1200 I was using) approved tygon just sucks. Tried it, turns to goo, or gets stiffer then a wedding prick. The stihl and echo line doesn't.
As to brembo, it wouldn't surprise me if they sourced it from S.G. I've tried several different "brands" of tygon, to varying effect. It all just keeps me going back to regular fuel hose.

Yeah I misread the Stihl part but my point was the guys that make the real deal Tygon supply it to a variety of different manufactures as part of their OEM BOM.

Like I said I’m a big fan of Tygon. Glad to know who actually makes it now.

 

[hisnice]

I had the same problem on my TS192 and finally gave up and brought it to Ace Hardware. They said the exhaust was blocked and it works like a dream now.

 

[PapaWhitebeard]

I had the same problem on my TS192 and finally gave up and brought it to Ace Hardware. They said the exhaust was blocked and it works like a dream now.

Yeah that “breathing” thing is pretty important

both for humans and for saws… breathe in… (filter and intake) breathe out… (exhaust)

A problem at either end is bad…

Glad you got it fixed, fella

 

[singinwoodwackr]

Got 1 finished yesterday and...idled fine but died at throttle up .
Pulled carb, cleaned out again...impulse line was pinched...I'd cut it too long.
Fixed those and all good.

 

[Wood Doctor]

Pull the motor and inspect it, pressure test it.

I finally got my compression tester for the small 10 mm spark plug that the 192/193 etc. saws use. As expected, both 193T saws measured almost no compression: 40 psi. So, that's why they would not start and run. They both need a new top end. It seemed like they had sufficient compression, but that was a bad judgment call by me.

I really wasted my time and should have done nothing until I verified the engine compression. I also noticed that the plug threads were a bit wet. Fuel was likely making it to the combustion chamber but no fuel was being burned. You live and you learn. I may rebuild the top ends of these saws and have done it for lots of saw models, but that's the owner's decision. He's picking up the tab.

My thanks to all who offered advice to me here.

 

[singinwoodwackr]

I finally got my compression tester for the small 10 mm spark plug that the 192/193 etc. saws use. As expected, both 193T saws measured almost no compression: 40 psi. So, that's why they would not start and run. They both need a new top end. It seemed like they had sufficient compression, but that was a bad judgment call by me.

I really wasted my time and should have done nothing until I verified the engine compression. I also noticed that the plug threads were a bit wet. Fuel was likely making it to the combustion chamber but no fuel was being burned. You live and you learn. I may rebuild the top ends of these saws and have done it for lots of saw models, but that's the owner's decision. He's picking up the tab.

My thanks to all who offered advice to me here.

At least these are fairly easy to take apart...not like the old 020s
Pull the motors and see what's what.

 

[VinceGU05]

I finally got my compression tester for the small 10 mm spark plug that the 192/193 etc. saws use. As expected, both 193T saws measured almost no compression: 40 psi. So, that's why they would not start and run. They both need a new top end. It seemed like they had sufficient compression, but that was a bad judgment call by me.

I really wasted my time and should have done nothing until I verified the engine compression. I also noticed that the plug threads were a bit wet. Fuel was likely making it to the combustion chamber but no fuel was being burned. You live and you learn. I may rebuild the top ends of these saws and have done it for lots of saw models, but that's the owner's decision. He's picking up the tab.

My thanks to all who offered advice to me here.

why you little !!!!......

just for ***** ans giggles, test a running 192/3 just to make sure the compression tester is reading correctly.

 

[Wood Doctor]

why you little !!!!......

just for ***** ans giggles, test a running 192/3 just to make sure the compression tester is reading correctly.

Will do and that is a very good idea.