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What material for fuel line?

Started by mass-hole, August 02, 2011, 06:28:28 AM

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mass-hole

August 02, 2011, 06:28:28 AM
I bought some 7mm silicone line from Mcmaster-carr and it turned out that it didnt work to well once I let it sit. I rode it for about a week and all was fine, but then I parked it thursday night and left it till monday morning. On Monday it would not start and I noticed that some of the lines had turned brown as well as the fuel in the bowls.

What do people recommend for fuel line material, something that is flexible and compatible with all the crap they put in the fuel now?

Thanks!
Current Mods: .85 kg front springs/15wt shock oil, R6 Rear Shock, 45T Rear Sprocket

Twism86

#1
August 02, 2011, 06:38:52 AM
Fuel tubing.......
First bike - 2002 GS500E - Sold
Current - 2012 Triumph Street Triple R
"Its more fun to ride a slow bike fast than a fast bike slow"

Tom

sledge

#2
August 02, 2011, 06:56:24 AM
Conventional silicone is not fuel resistant, PVC, tygon and nylon butile rubber (NBR) are suitable options.

I have tried just about every option on various machines but found NOTHING beats OEM NBR pipes for fit and durability.

mass-hole

#3
August 02, 2011, 07:16:21 AM Last Edit: August 02, 2011, 07:26:06 AM by mass-hole
Good to know, I guess I will go with NBR.

What size do you get, I know factory is 7mm, but I am having the hardest time finding that. I did by some 1/4" from the dealer but that was two small to fit over the barbs on the fittings. 5/16 seems like it might be too big.
Current Mods: .85 kg front springs/15wt shock oil, R6 Rear Shock, 45T Rear Sprocket

sledge

#4
August 02, 2011, 08:43:36 AM
This is what you want....

http://www.apmotorstore.co.uk/rubber-cotton-overbraid-fuel-hose-7mm.html

Dunno where you will find it in the US though, maybe ebay. You could also try the specialist hydraulic-hose suppliers or marine engine/outboard dealers.

Whats wrong with buying the OEM part from a dealer?

mike__R

#5
August 02, 2011, 10:04:28 AM
Quote from: sledge on August 02, 2011, 08:43:36 AM

Whats wrong with buying the OEM part from a dealer?

That's what I was about to ask - that way you know it is both good for fuel use and the correct size.
1995 GS500 on a 2000 frame with F front added
2001 SV650S
2008 VTX1800F
1975 CL360

mass-hole

#6
August 04, 2011, 06:24:28 AM Last Edit: August 04, 2011, 06:27:33 AM by mass-hole
Because some of the lines on the 2000 fiche have been discontinued and the other 2 cost $10 each, then i looked at a 2009 fiche and its over $30 for the new lines. I would much rather get 10 ft of line for $7-8 than spend 30 on the oem ones. or 25 ft for $14 like mcmaster is showing me
Current Mods: .85 kg front springs/15wt shock oil, R6 Rear Shock, 45T Rear Sprocket

tialloydragon

#7
August 04, 2011, 08:39:40 AM
I use 5/16 inch ID clear yellow Tygon from McMaster Carr.  Works great, hasn't degraded since I put it on, and it's nice to be able to see if there if fuel in the lines. 
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