upgrading gas lines

[double trouble]

Does anybody know what size the gas lines and what tubing would work for these happy time motors? I have 2 and both gas lines hardened up like a rock and turned yellow. Almost every picture of these fine bikes looks like the same cheap line. I have used some tubing I have lying around ,but I'm not sure its gasohol resilient. One is the tubing from a tank sprayer and the other is some clear silicone. Its holding up so far ,but....
What would you use to upgrade?

 

[drago]

I'm not sure, but check with a small engine repair place

 

[richirich1113]

i went to the auto parts store and got 1 size smaller than 1/4 (not sure the exact size) real black fuel injection fuel line.

 

[Mozenrath]

I don't know how large mine is, but I just took it to a local auto parts store and the guy there got me the correct size.

 

[Mphoch]

Any autoparts store will have fuel line it must be fuel line rubber will brake down and leak

 

[double trouble]

fuel line

I wanted something nice , not just black rubber lines. that is why I need the size. I wanted to order if because they make it in all kinds of pretty colors.
Maybe tygon or polyurethane like this.

http://www.ebay.com/itm/BLUE-POLYUR...Parts_Accessories&vxp=mtr&hash=item3f0e06cf94

 

[motorbikemike45]

Rubber will not stand up to any fuel containing alcohol. The clear plastic tubing known as tyvek will harden and crack with gasoline. I believe silicone, neoprene, butylene, or other synthetic rubber materials will be fine.

 

[xxSLiMxx]

This is the fuel line i use, Its used for RC cars/trucks. Works like a charm, adds some colour, and dose NOT get all hard..ever!

http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.4537/.f
or
http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.4420/.f

 

[Big Red]

This is the fuel line i use, Its used for RC cars/trucks. Works like a charm, adds some colour, and dose NOT get all hard..ever!

http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.4537/.f
or
http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.4420/.f

VERY cool stuff. I'm gonna order a few different colors for myself. Thanks for the info.
Big Red.

 

[Mozenrath]

Rubber will not stand up to any fuel containing alcohol. The clear plastic tubing known as tyvek will harden and crack with gasoline. I believe silicone, neoprene, butylene, or other synthetic rubber materials will be fine.

Sorta not true. Any rubber fuel line you are gonna buy at an auto parts store is designed to work with E10 gas, which is what virtually ever gas station carries. I've been using E85 with the black fuel line I got from a local auto parts store, and it still hasn't broken down.