In a standard Japanese-style motorcycle wiring harness (such as Honda), what circuits are traditionally represented by green wires and red wires?

1. Green represents ground (chassis earth), and Red represents unswitched battery positive (+12V DC).
2. Green represents the spark plug high-tension lead, and Red represents the horn circuit.
3. Green represents the turn signal positive feed, and Red represents the ignition coil input.
4. Green represents the AC lighting circuit, and Red represents the starter relay ground.