Jerry is correct.. Start at the tank outlet and pull the line off.. it should gush fuel.. let it run into a bucket for a few seconds..10 should do it..
If the flow hasn’t changed.. put the line back on and keep going down the line., until u get to the injection pump..
There’s a bleed screw at the opposite end of the inlet..8 or 10mm head.. crack it loose until u get fuel there and close it..
Now loosen the steel lines from the pump AT THE INJECTORS.. now crank the engine until fuel squirts out and tighten..
Push the throttle to wide open, activate the glow plugs for 10-20-30 seconds and try to start it..
Don’t forget to put oil in it..
Good luck.