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If your Mfgr. says:

That motor's 7 years old.
Part is no longer available.
We lose $$ on service!
EPA made me do it!
Parts at central warehouse, you'll get them next month.
We don't make parts for those.
We only do warranty work.
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WIRING COLOR CODES


Here is a listing of common color codes for Mercury and Mariner (US-made) outboard motors.
These codes apply to later-model motors (approximately early 80's to present)

MERCURY/MARINER COMMON WIRING COLOR CODES
WIRE COLOR(S) FUNCTION COLOR
SAMPLE
BLACK GROUND
BROWN Reference Electrode MerCathode System
ORANGE Anode Electrode MerCathode System
LIGHT BLUE / WHITE STRIPE Trim UP Switch
LIGHT 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 Un-fused Wire from Battery
RED / PURPLE STRIPE Protected (Fused) Wire from Battery and/or
Protected (12 Volt +) to Trim Panel Control
PURPLE Ignition (Switch) to 12 Volt Positive
TAN Temperature Switch to Warning Horn and/or
Temperature Sender to Temperature Gauge
TAN / /BLUE STRIPE Alternate Color Temperature Switch to Warning Horn
YELLOW Starter Solenoid to Starter Motor and/or
Starter to Regulator (Charging Circuit)
YELLOW / RED STRIPE Start Switch to Start Solenoid to Neutral Start Switch
YELLOW / BLACK STRIPE Choke (Enrichener System)
GREEN / VARIOUS STRIPE Switch Box to Coil - Striped and Numbered  
WHITE / BLACK STRIPE Bias Circuit (Switch Boxes)
 
 

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The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. This information is disseminated in good faith, however MasterTech assumes NO LIABILITY whatsoever in regard to this service. The information, software, products, and services published on this web site may include inaccuracies or typographical errors. Changes are periodically added to the information herein. Mastertech may make improvements to this site at any time. Parts ordered from this website may or may not be in dealer stock at the time of order. Thank you for reading.


Revised