Mercury MerCruiser Service Manual page 367

90-Amp Fuse
A 90‑amp fuse, located next to the hot stud at the rear of the engine by the flame arrestor, protects the engine wiring harness
from an electrical overload.
b
a
Power Trim Fuses
The power trim system is protected from overload by both a 110‑amp fuse and a 20‑amp spade fuse on the power trim pump.
The trim pump may also have an in‑line circuit protection device in the power trim positive lead near the battery switch or
battery connection.
a
Clean Power Fuse
A power harness, connected to the engine starting battery, minimizes voltage drop to the electrical system. This harness is
protected by a 5‑amp fuse, located at the battery end of the harness.
MerCathode Fuse
For circuit protection, the MerCathode system has a 5‑amp blade fuse connected into the controller's positive (+) lead. If the
fuse is open, the system will not operate and will not protect against corrosion. Replace an open fuse with the same style and
rating as that which is removed.
90-8M0099748 eng DECEMBER 2015
a -
b -
56871
b
90‑amp fuse
Hot stud
a - 20‑amp spade fuse
b - 110‑amp fuse
9208
© 2016 Mercury Marine
Electrical Components
Page 4E-9