Mercury 300 XS OptiMax - Page 129

OUTBOARD INSTALLATION
eng 123
BATTERY CABLE CONNECTIONS
Single Outboard
a - Red sleeve ‑ positive
(+)
b - Black sleeve ‑
negative (–)
c - Cranking battery
Dual Outboards
Connect a common ground cable (wire size same as engine battery cables)
between negative (–) terminals on starting batteries.
a - Red sleeve ‑ positive (+)
b - Black sleeve ‑ negative (–)
c - Ground cable
d - Cranking battery
(+)(+)
(-)(-)
b
a
c
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(-)
(-)
a
a
b
b
c
d
d
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