No spark from either coil or just one? If its just one that isnt sparking change the coils over and see if the other starts to spark. If it does you know the coil is duff.

If neither coil is sparking then check the grounds and the feeds to each coil. If your sure the PGM is ok check the ignition pickups are ok on the rotor. If you are getting a voltage from the pick up to the PGM but not from the PGM to the coils check the wiring hasnt rubbed thought and isnt grounding to the frame.

You can do all that with a multimeter, lots of tea and biscuits and some quiet time.

and check your battery before you get started too