Feeding Liquid Fuel in fuselage to jet engines on wing

[Columbia]

Hello all, 

I had this plane in the works (It's a 747 replica) which flew pretty flawlessly, except that it would run out of fuel three minutes into the flight.

Upon inspection, I found that the majority of fuel wasn't being used at all -- They were on the fuselage, and the engines were in the wings:

My question is:

Is there a way to make it so that I could feed the fuel to the engines on the wings somehow without fuel lines? I'll use them if I'm required to but I'd rather prefer not to, and I'm not too aware of how jet engines really work in terms of fuel feeding in KSP.

Thanks in advance!

[Foxster]

I threw something together to try to reproduce your problem and couldn't make it do it. 

I wonder if your problem is to do with all the odd bits that make up the fuselage, the wings and the engine pylons? There might be something in there that's "No Fuel Crossfeed". 

[cantab]

Manually transfer fuel from the fuselage to the engine tanks. With the ability to pin right-click menus so they're always visible, this is a lot more managable now than it was in earlier KSP versions.

[bewing]

Which version of KSP is this? Jet engines are not supposed to need fuel ducts at all. They are supposed to draw fuel from anywhere in the plane, equally.

[Stoney3K]

12 minutes ago, bewing said:

Which version of KSP is this? Jet engines are not supposed to need fuel ducts at all. They are supposed to draw fuel from anywhere in the plane, equally.

Not 100% true, that will only happen if the part is connected somewhere in the stack from the root part.

Radially-attached tanks, for example, don't always get drained while tanks on the main fuselage do. For example, the tanks that make up the upper deck of the 747 are somehow attached radially to the main fuselage.

You could add some fuel pipes next to the struts to make the tanks feed into the main fuselage and supply the engines.

[Columbia]

Thanks for the suggestions, I found that connecting fuel lines from the engine pylons to the wing was the solution. It seemed that the connections weren't passing through or something. Or some of the pylon parts may have Fuel Crossfeed off.

..I probably should have spent more time on figuring it out.