No spark

Put a test light on the neg side of coil.and crank it over you should see a blinking light if no blinking light problem is in the pick up or ecu make sure the ecu is grounded to body ,remove it and sand bolt holes to get a good ground , if you have a blinking light the problem is the coil the coil may have overheated while you were working on it ,do you have a coil for electronic ign.on it?