Dont ever use easy start. The need to means something else is wrong.
If its been run low on fuel, the fuel system will have air in it. To bleed the low pressure side, carefully pull the leak back pipe off above the inlet manifold where it starts to branch into four, hold the piece that runs down to the injector pump union and apply suction. This will draw fuel into the filter housing. Once you get diesel to the end of the pipe, quickly reconnect it back to where it branches off.
If necessary, to bleed the high pressure side, slacken the 4 17mm unions where the injector pipes meet the injectors below the end of the leak back pipes, without disturbing the leak back pipes if possible... and turn the engine over on the key until fuel spurts from the injector unions (This wont work with the leak back pipes off). Tighten them back up and the engine should start. Albeit a little groggy at first.
The engine appearing to run out of fuel when the tank is 1/8 to 1/4 full (especially when parked nose upwards) means the swirl pot in the fuel tank pickup needs cleaning out. In particular the spring loaded valve at the base of it.