Originally Posted by whitehendrix
- your ECU has a reduced voltage input from a resistor in the key switch's contact block. if that resistor burns up (common, unfortunately) you'll have 12 volts everwhere, and no power on the gray wire from the keyswitch harness. that gray wire has less than 12 volts on it (i can't remember exactly what the voltage is). this will cause you to *not have fuel delivery, (the fuel pump is powered from a pulse fed relay. the pulse is source from the #1/#4 sparkplug coil.), *no spark, *and the bike will have power everywhere, but won't start.
-the little black junction/fuse box under the seat contains two relays on a printed circuit board. one is the headligt relay, and the other is a relay the operates the starter solenoid. this little relay will not always work, and when you push the start button, the bike won't always start because of it. i'm working on a cure!!