cq
Well-Known Member
I have seen many post about wiring diagrams for boats, I hope this is a help. Thanks to Max at www.outdoor-links.com
Boat Wiring Color Codes
Wire should be marine grade, multi-strand and tinned. Tinning will drastically reduce, corrosion and tarnish. Do not use solid strand wire. The constant vibrations and movement will cause the strand to break.
This list is of the most commonly used wire codes used in boats today.
Purple - Ignltion switch controlled
Green - Bonding
Yellow - Alternator AC and field
Red - Unprotected battery wire
Black - Grounds
Brown - Alternator starter to ignition
Orange - Alternator DC output and accessories
Gray - Tachometer
Tan - Water temperature
Light Blue - Oil pressure
Green/White - Engine trim in and or tilt down
Green/Orange - Engine independent trim down
Blue/White - Engine trim out and/or tilt up
Blue/Orange - Engine independent tilt up
White - Not for less than 50 volts
Yellow/Red - Starting circuit
Yellow/Black - Choke
Black/Yellow - Ignition stop
Brown/White - Trim position sender
Boat Wiring Color Codes
Wire should be marine grade, multi-strand and tinned. Tinning will drastically reduce, corrosion and tarnish. Do not use solid strand wire. The constant vibrations and movement will cause the strand to break.
This list is of the most commonly used wire codes used in boats today.
Purple - Ignltion switch controlled
Green - Bonding
Yellow - Alternator AC and field
Red - Unprotected battery wire
Black - Grounds
Brown - Alternator starter to ignition
Orange - Alternator DC output and accessories
Gray - Tachometer
Tan - Water temperature
Light Blue - Oil pressure
Green/White - Engine trim in and or tilt down
Green/Orange - Engine independent trim down
Blue/White - Engine trim out and/or tilt up
Blue/Orange - Engine independent tilt up
White - Not for less than 50 volts
Yellow/Red - Starting circuit
Yellow/Black - Choke
Black/Yellow - Ignition stop
Brown/White - Trim position sender