Remove your airbox cover, the big plastic piece where the fuel tank is traditionally, remove airbox base plate and aircleaner.
Remove headlamp fuse and start bike in garage, allow bike to reach full operating temp and visually inspect the ignition area for blue arcs.
If possible, when bike starts missing and dropping idle, remove plug wire from coil for each cylinder and note any changes. If the ignition appears to be working fine, move over to fuel injectors, unplugging them is alittle more fun.
I'm having problems with my '08 Lightning, which i believe is a fuel injector issue. Idle is fine but off idle blips produce black smoke and popping through muffler along with backfires through intake.