Mercury 40 4-Stroke Manual page 83

OUTBOARD INSTALLATION
Connect the 14 pin connector to the engine harness and fasten the harness with the retainer.
a
a - Remote wiring harness
b - Retainer
BATTERY CABLE CONNECTIONS
Single Outboard
a - Red sleeve - Positive (+)
b - Black sleeve - Negative (–)
c
b
b
(-)
77
c - 14 pin connector
a
(+)
c
c - Cranking battery
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