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Mercury 50 - Boat Operation Safety Guidelines

Mercury 50
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LUSHING OUTBOARD COOLING
SYSTEM
CAUTION
When flushing, be certain the area around
propeller is clear, and no one is standing
nearby. To avoid possible injury, remove
the propeller.
To prevent silt and/or salt buildup in cool
-
ing systen~, flush w~th fresh water periodi
-
cally.
1
Ir~stall Quicksilver Flushing Attachment
(or
equivalent) over water intake openings
according to instructions supplied with
flushing attachment.
Connect hose between flushing attach
-
ment and water tap.
With outboard In normal operating posi-
tio1-1, open watertapand adjust flow so that
some water leaks from around cups.
ACAUTlON
DO NOT over rev. RUN at slower speeds
only.
With engine running at IDLE speed, con
-
tinue flushing until water becomes clear
(3
to
5
minutes for salt water units).
5 Stop engine, turn
-
off water and remove
flushing attachment.
IMPORTANT: Keep outboard in upright
position until all water has drained out.
Water
left trapped in outboard could cause
engine damage.
6 Clean outboard exterior surfaces and
wipe with Quicksilver Corrosion Guard to
protect finish.
4 Check that water is running from "Tell-
Tale." Shift outboard to neutral and start.
IGNITION MAINTENANCE
ACAUTlON
DO NOT touch or disconnect any ignition
system parts while engine is running, as
high voltage
1s present.
If electrical/ignition system is not operat
-
ing, DO NOT attempt to repair, but refer to
your authorized service facility.
SPARK PLUGS
Periodic ~nspection, cleaning and/or re
-
placement of spark plugs will enhance
engine performance. Always replace spark
plugs with type specified in SPECIFICA
-
TIONS.
Remove cow (Refer tc COWL REMOVAL
and
INSTALLt'TION
)
1
Disconnect spark plug leads and use
13/16
In
(21
III
n)
wrench to remove spark
plugs
2
Check that gaskets are In place dnd
Install new plup
Thread spark plugs In by hand untllflnger-
tlght Use wreich to tlghten an add~t~onal
1/4
turn
DO
NOT OVERTIGHTEN
3
Reconnect spark plug leads to correct
plugs
Inspect spark plug leads for damage
-
replace as necsssary
Replace spark plugs as follows:

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