Corrosion Control Anode - Mercury GO BOLDLY 25 EFI Operation, Maintenance And Installation Manual

2. Attach a water hose to the flushing attachment. Turn on the water and
adjust the flow so water is leaking around the rubber cups to ensure the
engine receives an adequate supply of cooling water.
3. Start the engine and run it at idle speed in neutral shift position.
IMPORTANT: Do not run the engine above idle when flushing.
4. Adjust the water flow (if necessary) so excess water continues leaking out
from around the rubber cups to ensure the engine is receiving an
adequate supply of cooling water.
5. Check for a steady stream of water flowing out of the water pump
indicator hole. Continue flushing the outboard for 3 to 5 minutes, carefully
monitoring water supply at all times.
6. Stop the engine, turn off the water, and remove the flushing attachment.
Install the propeller.

Corrosion Control Anode

Your outboard has corrosion control anodes at different locations. An anode
helps protect the outboard against galvanic corrosion by sacrificing its metal to
be slowly corroded instead of the outboard metals.
Each anode requires periodic inspection, especially in saltwater, which will
accelerate the erosion. To maintain 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 the effectiveness of the anode.
MAINTENANCE
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