Car won't start, no fuel getting to pump

[karl2.0]

may off wound the lucas fuel screw too far back in? you say u put it back to standard?

Owner before me said he had it screwed out half a turn, thing was chucking too much smoke out the back on start up so I wound it back half a turn
On the line going from the filter to the pump there is no suction/diesel going through it, only the tiniest amount stuck between an air bubble, I took the fuel filter cap off and filled it with diesel still nothing
Where would I connect a primer bulb if I got one?