Does anyone know what it is?
I can get the pipe in 5mm, 6.5mm and 8mm.
If you want the PIPE, I'm sure some one will givvvve it to you :icon_lol: :laugh: :icon_lol: :laugh:
The stock fuel hose is 7mm, which is not a common size. Some will use 1/4" (6.35mm) and others 5/16" (7.94mm). The 5/16" may seem to be a little loose but I have not a problem, it actually fits very well. Make sure you use clamps.
From the selector valve to the carb tee 5/16" with clamps works ok. I tried using 5/16 from the two tank taps to the valve and couldn't make it work; the two hoses are too thick to both fit onto the tank chicken together. I ended up doing those two runs in 1/4" instead, and then they JUST got past each other. The 1/4" is quite tight and you have to wrestle it on. All of the above with Goodyear automotive hose. I also added a clamp to the vacuum hose where it hits the valve body. That cured a vacuum leak that caused a fuel starvation issue at open throttle.
Jeffrey
'96 500ET
You can fit the thin wall 5/16" clear/transluscent Poly fuel tubing side by side on the fuel valve without a problem.
That thin wall sounds a better idea than the thick Goodyear automotive hose, but that thick stuff was all my local auto parts place had handy.