TOHATSU M 2.5A 2 Owner's Manual page 49

ENOM00088-1A
Anode replacement
A sacrificial anode protects the outboard motor from galvanic corrosion. Anode is
located on the gear case, cylinder etc.. When the anode is eroded more than 1/3 of
original size, replace it.
ENON00029-1
Notes
Never grease or paint the anode.
At each inspection, re-tighten all the anode attaching bolts. Those bolts may loosen if the
anodes are corroded.
INSPECTION AND MAINTENANCE
49
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ENOF02043-0