Had no spark, had voltage on Blk/ylw kill wire even while disconnected at switch. Ran a new wire from switch to power pack. Now I get a spark on only one cylinder. Disconnected wires at power pack and did a diode check( instructions came with new power pack from CDI), bad power pack. Replaced power pack, spark at all four cylinders now. Thought I'd share, hopefully it can help someone else.
