Mercury 150 Operation, Maintenance And Installation Manual page 115

OUTBOARD INSTALLATION
Dual Outboards
Connect a common ground cable (wire size same as engine battery cables)
between negative (–) terminals on starting batteries.
b
c
a - Red sleeve ‑ positive (+)
b - Black sleeve ‑ negative (–)
c - Ground cable
d - Cranking battery
FUEL HOSE CONNECTION
Fasten the remote fuel hose to fitting with a hose clamp. Position the hose
clamp so that it will not chafe or cut into an adjacent wiring harness.
Inspect the position of the hose clamp to ensure that it will not chafe or cut
into the adjacent wiring harnesses.
eng
b
a
(-)
NOTICE
a
(-)
d
105
d
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