Question about fuel lines

[RichV]

Thanks everyone,

I ordered two inline filters and have decided to go with the "H" configuration.

Does anyone know the size of the fuel line? I made some assumptions.

[BA80]

Go to your local parts house and get a few feet of 5/16 yellow Tygon fuel line. That works the best without flaking or getting brittle.

[natemoen]

If you want to go one step further you can even add a little fuel rail on the bottom side of the carbs to connect the 1/2 and 3/4 carb pairs. That way you really only need one petcock at a time and you can take your time to switch the other carb to reserve.

It also saves the trouble of having to get at the little T's in the middle of the carbs. You can have the carb fuel connections in a MUCH more convenient place!

[RichV]

Thanks again everyone. The parts are on order.

[fredintoon]

Go to your local parts house and get a few feet of 5/16 yellow Tygon fuel line. That works the best without flaking or getting brittle.

Hi Greg,
yes, Tygon rules!
the 5/16" had better be the outside diameter, eh?
Mine is all 1/4" bore.

[RichV]

Okay, here is the completed product (below). I ran the lines like I described with an "I" configuration through the center. Hopefully, the fuel will have no problem moving through the lines in the looping fashion. I left the left side line long for now so I can tune the bike with the tank above it.

The lines will loop from the tank petcocks between 1-2 and 3-4 to a "T" underneath. One line up the center to another "T" which breaks to the two lin-line filters and then to the fuel input to the carbs.

This should work but if it doesn't I'll just try something else. The top "T" is over 2" below the tank so gravity should do all the work. I think I have taken into account everything in this area.

Criticism is welcome and desired. I left the two center hose clamps off on purpose for now.

[fredintoon]

To a Tee or two

Okay, here is the completed product (below). I ran the lines like I described with an "I" configuration through the center. Hopefully, the fuel will have no problem moving through the lines in the looping fashion. I left the left side line long for now so I can tune the bike with the tank above it.

The lines will loop from the tank petcocks between 1-2 and 3-4 to a "T" underneath. One line up the center to another "T" which breaks to the two lin-line filters and then to the fuel input to the carbs.

This should work but if it doesn't I'll just try something else. The top "T" is over 2" below the tank so gravity should do all the work. I think I have taken into account everything in this area.

Criticism is welcome and desired. I left the two center hose clamps off on purpose for now.

Hi Rich,
no reason I can see that your way won't work.
All I did was run a fuel hose from each gas tap to the opposite side carb tee so there'd be more space to install an in-line filter in each hose.
Gotta remember to switch both taps on and off.
One needs those little senility checks at my age, the daily crossword can only do so much.

[natemoen]

Don't see why it won't work.

I want to see you put the carbs in with the airbox attatched though!

[RichV]

I want to see you put the carbs in with the airbox attatched though!

that would be a real trick. :-)