Corrosion Control Anodes - Mercury 200 Verado FourStroke Operation, Maintenance & Warranty Manual

Water‑In‑Fuel Warning—Draining the Filter
1. Close the fuel valve, if equipped.
2. Place a container under the fuel filter.
3. Remove the water‑in‑fuel sensor and allow the filter to drain into the
container. The liquid that has drained from the filter must be disposed of
according to applicable regulations and law.
4. Install the water‑in‑fuel sensor and tighten securely. Do not overtighten
this sensor or damage may occur.
5. Open the fuel valve.
6. Start the engine and inspect the area for fuel leaks. Repair as required.
NOTE: After draining the water separating fuel filter, the engine may stall or
develop a slight hesitation and should clear itself of entrained air within a few
minutes. Allow the trapped air to be purged from the fuel system before
operating the engine above idle in gear.

Corrosion Control Anodes

The outboard has corrosion control anodes at different locations. An anode
helps protect the outboard against galvanic corrosion by sacrificing its metal to
be slowly eroded instead of the outboard metals.
Each anode requires periodic inspection, especially in saltwater which will
accelerate the erosion. To maintain this corrosion protection, always replace
the anode before it is completely eroded. Never paint or apply a protective
coating on the anode, as this will reduce effectiveness of the anode.
a
b
a - Two control anodes on splash plate
b - Ground wire
c - One control anode on the bottom of the pedestal
d - Two control anodes on the bottom of the power trim rams
e - Two control anodes on sides of gearcase
MAINTENANCE
c
d
96
e
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eng