Finally found Vol 2 of my FSM (it had fallen down behind the bench) and tested the coil and resistor:

Ballast: 1.8 (which is out of spec - high)
Primary: 1.5 (which is also out of spec, high)
Secondary: 15 (which is on the low side of spec, but "in")

If my understanding of the operation is correct, the high ballast resistance would result in lowered voltage sent to the primary, and the high primary resistance would result in lowered inductance to the secondary ÔÇö the combination of which would produce a weak spark. True?



Removed when the Weber was installed.



Not that I can see. Also, the plugs are all dry and have a light coating of ash (i.e., no signs of being steam-cleaned.)