What are the four wires of a motorcycle ignition switch connected to?

1 Answers
BentleyRose
07/29/25 7:32pm
Motorcycle ignition switch 4-wire connection method: 1. Red - 12V: Positive input (the thin wire with a fuse coming from the battery). 2. Black - 12V positive output (controlled by the key, forming a closed circuit with the red wire to supply positive power to all vehicle electrical devices). 3. Green - 12V: Negative power supply. 4. Black/white wire - Engine kill wire: Controlled by the key, forming a closed circuit with the green wire to control the operation of the ignition unit to achieve engine shutdown. Below is a related introduction: The function of the motorcycle ignition switch is: when locked, it disconnects the positive wire and connects the ignition unit kill wire; when unlocked, it connects the positive wire and disconnects the ignition unit kill wire.
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