What are the general wiring colors used on Mercury outboard engines?

[genxer36]

Mercury/Mariner Standard Outboard Wiring Color Code
Color Where Used / Function

Black - All Ground

Brown -Reference Electrode MerCathode System

Orange -Anode Electrode MerCathode System

Lt. Blue/White Stripe -Trim UP Switch

Lt. Green/White Stripe -Trim DOWN Switch

Brown/White Stripe -Trim Sender to Trim Gauge

Purple/White Stripe -Trim "Trailer" Switch

Gray -Tachometer Signal

Black/Yellow Stripe - Shorting or Stop Circuit

Pink - Fuel Sender to Gauge

Red - Unprotected Wire from Battery

Red/Purple Stripe - Protected (Fused) Wire from Battery

Red/Purple Stripe - Protected (12 Volt +) to Trim Panel Control

Purple - Ignition (Switch) to 12 Volt Positive

Tan - Temperature Switch to Warning Horn

Tan - Temperature Sender to Temperature Gauge

Tan/Blue Stripe - Temperature Switch to Warning Horn

Yellow - Starter Solenoid to Starter Motor

Yellow - Starter to Regulator (Charging Circuit)

Yellow/Red Stripe - Start Switch to Start Solenoid to Neutral Start Switch

Yellow/Black Stripe - Choke (Enrichener System)

Green with Color Stripe - Switch Box to Coil - Striped and Numbered

White/Black Stripe - Bias Circuit (Switch Boxes)


The ABYC Recommended Colors
Color Where Used / Function

Yellow/Red - Starting Circuits

Brown/Yellow or Yellow - Bilge Blowers

Dark Grey - Navigation Lights & Tach Signals

Orange - Accessory Feeds

Brown - Pumps

Purple - Instrument Feeds

Dark Blue - Cabin and instrument Lights

Light Blue - Oil Pressure

Tan -Water Temperature

Pink -Fuel Gauge Sender



Found on the Mercury website - http://www.mercurymarine.com/servic...intenance/faqs/outboards/?category=electrical