Following after Roy,
You may need to get pft pft at 2 injectors before the engine will hit and hold. When she acts like she wants it, just keep pumping the juice to the starter. You're building heat in the combustion chamber and what little fuel you're getting in there will have a better chance of igniting.
Then, when she's running on her own, walk back and forth down the injectors purging all several times.
If you do change filters, only open one bleed screw at a time. Do the one nearest the pump then when full, close and do the other. As stated, you will pump your fingers off getting them full. Be sure to push the pumping lever back against the block when finished (not out toward you).