Not starting

[21HD10]

 

Not running! Having to feed horses by wheel barrow!

  I just changed out the fuel filter on the fuel pick up at the pump. Now it will not start. I cycled the key several times to let the fuel pump draw some fuel but no luck. Does anyone have any ideas?

[Steelslinger]

Do a pressure test on the fuel pump/lines. Make sure it's pulling fuel up. Could be the oring on the pump cap isn't seated properly and isn't getting suction, or maybe something with the filter isn't allowing fuel in.