Red/blue is from the TAIL fuse, and is switched power to all the "running" lights on the bike. In the dash, it powers the illumination bulbs.
The brown/blue is switched power from the IGN fuse. It powers the gauges and indicator lights themselves, the igniter, and the kill switch (which passes through to the red wire powering the coils).
Other than the battery terminal/lead, the white wire is the only source of non-switched 12V power in the harness. It runs from the Main fuse to the ignition switch, R/R, and the FAN/ACC input of the junction box (that might be changed on some years' harness, as was the case on the EX500).
Quote:
Originally Posted by magnaton
Quote:
Originally Posted by InvisiBill
Note that the coils and tach receive constant 12V power (red and brown wires respectively), and the igniter grounds the black (or green) wire to complete the circuit.
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Are you saying the the red and brown wires of the coils and tach respectively will serve the same function? Are these the positive terminals of the coil on that PDF? |
To clarify this, the coil circuits use a constant power supply and the igniter switches the ground as needed. The coils' red wires are switched on and off with the ignition and kill switch, not always-hot "constant" 12V. But the ignition switches the ground rather than the power, which might not be expected to some people.