This will probably sound incredibly elementary for all of you. I wasn't getting any spark and after reading all of the horror stories on here about SEM failures ('02 650) I figured I had a bad stator. I tested it (thanks to Sparks for the numbers!) and found that it was in spec and began scratching my head. I went through the entire wiring harness and greased all of the connections and made sure that the wires looked the same as the wiring diagram. Everything checked out. Then I figured that I wasn't kicking hard enough. Got back on the thing and kicked my heart out to no avail. I realized at that point that I was trying to ground the spark plug on the rocker cover instead of the cylinder! Doh! I think that the sealant from the rocker cover to the head prevents the ground from occurring. Got plenty of spark now! Only got it to lite for a second though (damn Del Lorto's!).