Need a wiring schematic for a 93 fatboy Harley davidson

Put a multimeter on the coil wire , set the meter to 12 volts dc and turn on the ignition
it will be either 12 volts ( 12volt coil ) or 7.5 volts ( 7.5 volts coil)
this system is used on may electrical ignitions meaning it starts on 12 volts ( maximum spark with reduced voltage under cranking ) but runs on 7.5 volts ( resistor controlled voltage )