Inspecting And Replacing Anode(S); Checking Battery (For Electric Start Models) - Yamaha 20D Owner's Manual

Maintenance
plosion hazard.
Dispose of old gasoline according to lo-
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cal regulations.
1. Empty the fuel tank into an approved
container.
2. Pour a small amount of suitable solvent
into the tank. Install the cap and shake
the tank. Drain the solvent completely.
3. Remove the screws holding the fuel joint
assembly. Pull the assembly out of the
tank.
4. Clean the filter (located on the end of the
suction pipe) in a suitable cleaning sol-
vent. Allow the filter to dry.
5. Replace the gasket with a new one. Re-
install the fuel joint assembly and tighten
the screws firmly.
EMU29312

Inspecting and replacing anode(s)

Yamaha outboard motors are protected from
corrosion by sacrificial anodes. Inspect the
external anodes periodically. Remove scales
from the surfaces of the anodes. Consult a
Yamaha dealer for replacement of external
anodes.
ECM00720
CAUTION:
Do not paint anodes, as this would render
them ineffective.
53
NOTE:
Inspect ground leads attached to external
anodes on equipped models. Consult a
Yamaha dealer for inspection and replace-
ment of internal anodes attached to the pow-
er unit.
EMU29320
Checking battery (for electric start
models)
EWM00330
ZMU02066
WARNING
Battery electrolytic fluid is dangerous; it
contains sulfuric acid and therefore is
poisonous and highly caustic.
Always follow these preventive mea-
sures:
Avoid bodily contact with electrolytic
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fluid as it can cause severe burns or
permanent eye injury.
Wear protective eye gear when han-
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dling or working near batteries.
Antidote (EXTERNAL):
SKIN - Flush with water.
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EYES - Flush with water for 15 minutes
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and get immediate medical attention.
Antidote (INTERNAL):
Drink large quantities of water or milk
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followed by milk of magnesia, beaten
egg, or vegetable oil. Get immediate
ZMU02924