Battery Cables; Single Outboard; Dual Outboard - Mercury Optimax 115 Service Manual

OUTBOARD MOTOR INSTALLATION

Battery Cables

Single Outboard

a -
b -
c -

Dual Outboard

Connect a common ground cable (wire size same as engine battery cables) between
NEGATIVE (–) terminals on starting batteries.
d -
Page 1D-8
(–)
RED Sleeve (Positive)
BLACK Sleeve (Negative)
Starting Battery
d
(–)
Common Ground Cable
a
(+)
b
c
(–)
90-855347R1 JANUARY 1999