One CDI under the tank, top tube behind the left coil.
Two coils, one on either side of the top tube just behind the headset.
my experience with bad coils is they cut out once they get hotterer: anywhere from 10 to 25 miles when starting out from ambient temperature. At the least, remove the tank (pillion, saddle, console, fuel line, then tank) and unplug then re-plug the CDI and the coils.
