another project- another wiring problem!

I should have initially stated: can't find any spark our of the coil's center wire. inline spark tester. 6-7 v at coil plus, little out coil neg, spark at the points, perhaps ouside in light hard to see any spark. question is: it HAS to have spark at coil output doesn't it?
the other info was for diagnosis info.
sorry for the rambling.