Dual Outboards
Connect a common ground cable (wire size same as engine
battery cables) between negative (–) terminals on starting
batteries.
b
a -
Red sleeve ‑ Positive (+)
b -
Black sleeve ‑ Negative
(–)
OUTBOARD INSTALLATION
a
c
(-)
a
b
(-)
c -
Ground cable
d -
Cranking battery
108
d
d
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