Lubrication (Except Oil Injection Models); Battery Care; Flushing Power Unit - Yamaha F20A Owner's Manual

Maintenance
13. Drain the fuel from the fuel tank.
NOTE:
Store the fuel tank in a dry, well-ventilated
place, not in direct sunlight.
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Lubrication (except oil injection
models)
1. Grease the spark plug threads and in-
stall the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 50.
2. Change the gear oil. For instructions,
see page 58. Inspect the oil for the pres-
ence of water that indicates a leaky seal.
Seal replacement should be performed
by an authorized Yamaha dealer prior to
use.
3. Grease all grease fittings. For further de-
tails, see page 49.
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Battery care

EWM00330
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
G
fluid as it can cause severe burns or
permanent eye injury.
Wear protective eye gear when han-
G
dling or working near batteries.
Antidote (EXTERNAL):
SKIN - Flush with water.
G
EYES - Flush with water for 15 minutes
G
and get immediate medical attention.
Antidote (INTERNAL):
Drink large quantities of water or milk
G
followed by milk of magnesia, beaten
egg, or vegetable oil. Get immediate
44
medical attention.
Batteries also generate explosive hydro-
gen gas; therefore, you should always
follow these preventive measures:
Charge batteries in a well-ventilated ar-
G
ea.
Keep batteries away from fire, sparks,
G
or open flames (for example: welding
equipment, lighted cigarettes, and so
on.)
DO NOT SMOKE when charging or han-
G
dling batteries.
KEEP BATTERIES AND ELECTROLYTIC
FLUID OUT OF REACH OF CHILDREN.
Batteries vary among manufacturers. There-
fore the following procedures may not al-
ways apply. Consult
manufacturer's instructions.
Procedure
1. Disconnect and remove the battery from
the boat. Always disconnect the black
negative cable first to prevent the risk of
shorting.
2. Clean the battery casing and terminals.
Fill each cell to the upper level with dis-
tilled water.
3. Store the battery on a level surface in a
cool, dry, well-ventilated place out of di-
rect sunlight.
4. Once a month, check the specific gravity
of the electrolyte and recharge as re-
quired to prolong battery life.
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Flushing power unit

Perform this procedure right after operation
for the most thorough flushing.
ECM01530
CAUTION:
Do not perform this procedure while the
engine is running. The water pump may
be damaged and severe damage from
your battery