Retro-fitting Stihl saws with tygon fuel line instead of black factory formed line.

[Den]

Has anybody retrofit their Stihl saw with yellow tygon fuel line and a chassis grommet? What grommet did you use?

I did this type of retrofit with my Husqvarna 162SE and it turned out magnificent.
I used a chassis grommet from an Echo 550 EVL and yellow tygon fuel line. The result was fantastic, and I left enough slack to facilitate easy fuel filter replacement.


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[67L36Driver]

Tygon is crap in the long run. Use the OEM Stihl or Husky fuel hose. [emoji108]

Alternative is the black Stihl or Echo line.

I only use Tygon on the little plastic Poulans because I don’t expect them to last average homeowner use. [emoji19]

 

[mexicanyella]

Why do you say Tygon is crap, and how are the OEM hoses you mentioned better? Do they stay flexible longer than Tygon?

To me Tygon seemed better than what came on homeowner trimmers, but by the time the next carb kit is needed the Tygon is generally rock-hard.

 

[HarleyT]

You have to realize that Tygon comes in many different formulas, and also know that most of the crap that is sold is not Tygon, but aftermarket crap.
But in fixing saws, go back with the formed line.

 

[RED-85-Z51]

Tygon and other plastic lines are trash...they quickly get hard and often shrink. I get 2 to 2 and a half seasons out of genuine tygon and 1 to 1 and a half seasons out of cheaper bootleg tygon.

Sent from my LM-G820 using Tapatalk

 

[stihl86]

Real Tyson is very good stuff. But using oem on a saw is the best way to go imo

 

[RedneckChainsawRepair]

Tygon 4040 is decent. Just got to make sure you get the original and not a copy. I use oem Echo black line for everything except for small tygon 4040 lines now.

I bypass the molded lines if the owners give me permission to do so on stihl saws and trimmers etc.

 

[Chainmale]

It doesn't like too much heat. The line for the manual oiler on my 2100 goes between the muffler and the chassis, only lasted about 2 minutes

 

[ironman_gq]

You can also buy Viton fuel line, same material they make all kinds of fuel parts out of

 

[67L36Driver]

You can also buy Viton fuel line, same material they make all kinds of fuel parts out of

Viton is a whole different animal. Wide temperature and chemical resistance range. It’s what to use for Corvair push rod tube ‘O’ ring seals. [emoji108]

 

[HarleyT]

You can also buy Viton fuel line, same material they make all kinds of fuel parts out of

Is that italian tygon?

 

[SteveSr]

Is that italian tygon?

Actually a fluropolymer (i.e. Teflon). Makes good fuel proof gaskets but not flexible enough for intricate fuel lines.

 

[ironman_gq]

Actually a fluropolymer (i.e. Teflon). Makes good fuel proof gaskets but not flexible enough for intricate fuel lines.

I've been using it for a few years on all kinds of 2-stroke equipment. Viton is a little stiffer than Tygon but so far I haven't had any issues with it other than taking a little more effort to stretch it over some of the carb fittings or fuel filter barbs.

 

[Den]

JeremiahJohns,
That Stihl in the picture looks like an 026, if I remember correctly from working on mine. Very nice saws.

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[RedneckChainsawRepair]

JeremiahJohns,
That Stihl in the picture looks like an 026, if I remember correctly from working on mine. Very nice saws.

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I did 026 025 etc this way. But that is a 390 with no decomp.
See the stihl rescue handle I put on for older owner. Also notice the rear handle is orange.

 

[irhunter]

I did 026 025 etc this way. But that is a 390 with no decomp.
See the stihl rescue handle I put on for older owner. Also notice the rear handle is orange.

View attachment 838407

What did you use for a grommet on the fuel line?

 

[RedneckChainsawRepair]

What did you use for a grommet on the fuel line?

One from oem or afm molded line. Even the old one works like this.
Look at my pic of the trimmer line. Clip up and below run new line through.

 

[brgrdr]

I have redone most of my trimmers and other small engines in viton, several years in, no problems other than getting the larger diameter through some grommets...a little wd40 and pliers and it made it.

I tried Tygon on my string trimmers and ice auger, and it was hard after a year. Just my experience.