Color

Item

Use

Green

Bonding System

Bonding Wires (if insulated)

Yellow or Black

Ground

Return, Negative Mains

Red

Main Power Feeds

Positive Mains (particularly unfused)

Yellow w/ Red

Starting Circuit

Starting Switch to Solenoid

Yellow

Generator Field

Generator to Regulator Field Terminal

Brown w/ Yellow

Bilge Blowers

Fuse or Switch to Blower

Dark Gray

Navigation Lights

Fuse or Switch to Lights

Tachometer

Tachometer Sender to Gauge

Brown

Generator Armature

Generator Armature to Regulator

Alternator Charge Light

Generator Terminal or Alternator
Auxiliary Terminal to Regulator

Pumps

Fuse or Switch to Pumps

Orange

Accessory Feed

Ammeter to Alternator or
Generator Output and Accessory
Fuses or Switches

Common Feed

Distribution Panel to Accessory Switch

Purple

Ignition

Ignition Switch to Coil & Electrical
Instruments

Instrument Feed

Distribution Panel Electrical Instruments

Dark Blue

Cabin & Instrument

Fuse or Switch to Lights

Light Blue

Oil Pressure

Oil Pressure Sender to Gauge

Tan

Water Temperature

Water Temperature Sender to Gauge

Pink

Fuel Gauge

Fuel Gauge Sender to Gauge