Cleaning And Anticorrosion Measures; Battery Care; Flushing Power Unit - Yamaha F50 Owner's Manual

Maintenance
EMU30262
Cleaning and anticorrosion
measures
1. Wash down the exterior of the outboard
motor with fresh water and dry off com-
pletely.
2. Spray the outboard motor exterior with
"Yamaha Silicone Protectant".
ECM01401
CAUTION:
Do not spray when the engine is running.
Also, do not spray near the silencer or
into the engine. Otherwise the engine
could be damaged.
3. Wax the cowling with a non-abrasive
wax such as "Yamaha Silicone Wax".
EMU28431

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
medical attention.
Batteries also generate explosive hydro-
gen gas; therefore, you should always
64
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.
Follow the manual of the battery for the han-
dling of the battery. Batteries vary among
manufacturers. Therefore the following pro-
cedures may not always apply. Consult your
battery 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
overheating can result.
1. After shutting off the engine, unscrew