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Main Area => General GS500 Discussion => Topic started by: mass-hole on August 02, 2011, 06:28:28 AM

Title: What material for fuel line?
Post by: mass-hole on 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!
Title: Re: What material for fuel line?
Post by: Twism86 on August 02, 2011, 06:38:52 AM
Fuel tubing.......
Title: Re: What material for fuel line?
Post by: sledge on 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.
Title: Re: What material for fuel line?
Post by: mass-hole on August 02, 2011, 07:16:21 AM
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.
Title: Re: What material for fuel line?
Post by: sledge on 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?
Title: Re: What material for fuel line?
Post by: mike__R on 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.
Title: Re: What material for fuel line?
Post by: mass-hole on August 04, 2011, 06:24:28 AM
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
Title: Re: What material for fuel line?
Post by: tialloydragon on 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.