What size Tygon fuel line will fit properly on a Stihl FS80R, I want to make sure it fits properly through the fuel tank grommet and also the ID has to fit tight on the Carburetor stems.
What size Tygon fuel lines for Stihl FL80R
frotis
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Would you be better off with the 'Echo 90015' 3mm x 6mm line? The Stihl line is 5.7mm, I would think the Echo 5mm would be loose in fuel tank grommets.
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Just throwin this out there...
Stihl fuel line for the FS80 (4137 series) is 3.1mm X 5.7mm and is part number 0000 937 5004 for a 3 foot ish length.
The grommets are part number 0000 989 0516.
If you use the Stihl line and replace both grommets, then you wont have to worry about if it will fit or not, won't have to worry about any leaks and you'll have extra for something else!
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My fs90 and 110 the lines and gromet are all one molded piece. The older ones aren't this way but can be updated and should be.
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Thanks for the part # for a 3 foot length.
This is the stuff I used on my FS80R (with new grommets), just ordered it earlier this year, works super:
www.ebay.com/itm/171368708716
Which is a 3/16 OD line, in this case it's 3/32 ID but 1/8" would work as well.
That's 4.8mm OD
Now if you wanted a 50 foot roll:
http://emurdock.com/Tygothaneay700165332idx316walllp150050packagelength.aspx
www.ebay.com/itm/171368708716
Which is a 3/16 OD line, in this case it's 3/32 ID but 1/8" would work as well.
That's 4.8mm OD
Now if you wanted a 50 foot roll:
http://emurdock.com/Tygothaneay700165332idx316walllp150050packagelength.aspx
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The early "older ones" 4180 series had a 1 piece fuel line where the tank grommet was made into the fuel line assy. That was changed moons ago to a 3 piece fuel line set up... 1 molded in tank line that attaches to a pressed in connector into the tank. Then a short supply line and a short return line between the connector and carburetor.
The 4137 series or FS80 as the OP has asked about is night and day different as there are 2 completely seperate fuel lines (1 supply and 1 return), and each has a seperate grommet in the tank that each fuel line comes through.
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So Stihl did the opposite with the old 2 cycles? Weird.
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Not that it matters to me but that's a hose pulled through a grommet then? No little tit in the grommet to put the hose on one side and hose/filter on the other? Way back I had a FS76 and an 85 but that was mby 8 years ago. Those were nice units when 2 cycles ruled the land. My hands don't miss the vibes any. I remember first brush blade I ever run was on that 85 and it got really boggy and smooth when it would run that blade. Weight and balance vs a trimmer head is all. It would climb up to speed not jump to speed Brrrrrrrrrrrrrring
The FS80 is an older unit yes? It's not some new model I don't know diddley about is it?
The FS80 is an older unit yes? It's not some new model I don't know diddley about is it?
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Yes, in the picture I posted of the FS80 tank is 2 fuel lines and 2 grommets... Both lines are pulled through the grommets, no fittings. The supply hose is about 7-8 inches long that has the fuel filter on the end in the tank and the return line is about 4 inches long.
Way back in the day the FS72, FS74 and FS76 (4133 series) had 2 different set-ups also... The early set-up with them was a big single grommet that both lines pulled up through... The later version used 2 seperate fuel lines and 2 grommets like the FS80 tank shown except the position of the holes in the tank were turned 90 degrees.
The 4137 series is an old school unit which included the following models:
FS75, FS80, FS80R, FS85, FS85R, FS85T and FS85RX.
Then there is a really old school FS80 (4112 series) which was produced between 1977 and 1986.
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3/16" is only 4.7mm, the Stihl hose is 5.7mm outer diameter, I will stick with the Stihl fuel line. In applications where it passes through a grommet its more important to have it seal properly.
1 mm difference
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1 mm difference
WTF guys, so he decided to use Stihl line, big deal... Get over it!
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