Outboard wire colours

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Details of the wire colours of the common functions in each brand of outboard motor.

Function	Yamaha	Johnson	Evinrude	Mercury	Honda	Suzuki	Tohatsu
Battery positive	Red	Red/Black	Red/Black	Red	White/Black	White	Red
Battery negative	Black	Black	Black	Black	Black	Black	Black
Temperature light/Gauge Sender	Pink	Tan/Orange	Tan/Orange	Tan	Yellow/Green	Pink	Light blue
Low oil sender	Green/Red	Tan/Black	Tan/Black	Tan/Black	Yellow	N/A	Light green
No oil sender	N/A	Tan/Yellow	Tan/Yellow	N/A	N/A	Black	N/A
Warning buzzer	Grey/Green	Tan	Tan	Tan/Blue	Red	Blue	Yellow
Tachometer	Green/Red	Grey	Grey	Gray	Gray	Yellow	Light green
Choke	Blue	Purple/White	Purple/White	Yellow/Black	Brown	N/A	Blue
Start	Brown	Yellow/Red	Yellow/Red	Yellow/Red	Black/White	Brown	Green
Lanyard / Kill Switch	White	Black/Yellow	Black/Yellow	Black/Yellow	Black/Red	Green	Brown
Neutral safety switch	N/A	Yellow/Red	Yellow/Red	Yellow/Red	N/A	Brown	Green
Trim sender	Pink/Black	White/Tan	White/Tan	Brown/White	Yellow/Blue	White/Yellow	Pink & Light green
Key/Ingition on	Yellow	Purple	Purple	Purple	Black/Yellow	Gray	Red
Trim up	Light blue	Blue/White	Blue/White	Light blue/white	Green	Light blue	Green
Trim down	Light green	Green/White	Green/White	Light green/White	Blue	Pink	Blue
Check engine light	N/A	N/A	N/A	N/A	N/A	Gray	N/A