Here's a handy chart you can use to sharpen your familiarity with Honda wiring diagrams. It breaks down the color-codes used with most of our bikes (the one exception is described in a footnote) and even tells you where each wire begins and ends.
The August Full Cycle release, "How to Read Honda Wiring Diagrams", will refer you to this chart so please keep it around as d reference. Copies won't be included with the program, but you can order extras (it's form S1149) using the Dealer Promotional Order Form.
| COLOUR | USE | FROM | TO |
| Black* | a. Switched Hot b. Switched Hot c. Switched Hot d. Battery Voltage Sense Lead | a. Ignition Switch b. Ignition Switch c. Ignition Switch d. Ignition Switch | a. Fuses b. Handlebar Switch c. Starter Switch d. Voltage Regulator |
| Black / Brown | Fused Hot: Neutral Light Oil Light | Fuse Box | Neutral Light Oil Light |
| Black / Red | Fused Hot (Headlight) | Fuse Box | Starter Switch |
| Black / White | Ignition System Hot | Ignition Handlebar Switch | Coils and T.P.I. Box |
| Blue / White | Switched Hot | Starter Switch | Dimmer Switch |
| Brown | Taillight | Brown / White (Ignition Switch) | Brown |
| Brown / Black | Fused Hot: Running Lights Meter Lights | Fuse Box | Brown / White Lead |
| Brown / White | Running Lights Meter Lights Taillight | Brown / White Brown / White Brown / White | Turn Signal Switch Meters Ignition Switch |
| Green | Ground | Load | Ground |
| Green / Red | Starter Safety Circuit | Starter Relay to Diode to Clutch Switch | |
| Green / Yellow | Brake Light | Switch | Lamp |
| Grey | Hot Turn Signal | Meter Relay | Turn Signal Switch |
| Light Green | Horn Circuit | Horn | Horn Switch |
| Light Green / Red | Neutral Circuit | Bulb | Neutral Switch |
| Orange and Light blue | Switched Hot: Turn Signal | Turn Signal Switch | Turn Signal Bulb |
| Orange / White and Light Blue / White | Front Running Lights | Turn Signal Switch | Brown |
| Red* | Hot | Battery | Ignition Switch |
| Red / White | Charging Lead | Rectifier | Battery |
| White Blue | Switched Hot: Lo Switched Hot: Hi | Dimmer Switch | Headlight |
| White / Green | Fused Hot: Turn Signal Horn Brake Light | Fuse Box Fuse Box Fuse Box | Turn Signal Relay Horn Brake Light Switches |
| Yellow | Charging System | Stator | Rectifier |
| Yellow and Blue | Ignition System | Coil | T.P.I. Box |
| Yellow / Red | Starter Circuit | Starter Switch | Starter Relay |
*For smaller motorcycles with one fuse
Red: from battery to ignition switch; Black: from ignition switch to individual circuits.
MSN 30208108
Comments
7 wires exited the original lighting switch unit on right hand of handlebar as it had a kill switch.
Now I bought a replacement that has no kill switch but only 6 wires and bike won't start, no lights, fuse and battery are good.
What do I do now? Thanks.