Procedure
I have an ECI IO360 with Airflow performance pump on my 7.
Starting cold- Mix rich, 1/4 throttle, pump on for 3 seconds, then off for start.
Hot Start- Mix rich, 1/4 throttle, pump on for 3 seconds, off. Mix lean, throttle crack a little. Crank. On the second "catch" mix full rich, throttle idle. Works in even the hottest conditions. (I have no purge valve).
After run up, just prior to take off, pump on. Remains on until at least 2000 ft AGL.
Pump on during tank changes, then off.
Before landing- pump on before throttle reduction
Off after clearing runway.
Works for me.