Submerged Outboard; Storage; Storage Preparation; Troubleshooting - Mercury 40 Manual

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MAINTENANCE
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GEAR CASE LUBRICATION
Checking Gear Case Lubricant Level and Refilling Gear Case
1
Place outboard in a vertical operating position.
2
Remove vent plug (a).
3
Place lubricant tube (b) into the fill hole and add lubricant until it appears at the
vent hole (c).
IMPORTANT: Replace sealing washers if damaged.
4
Stop adding lubricant. Install the vent plug and sealing washer (a) before
removing the lubricant tube.
5
Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer
(d).
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SUBMERGED OUTBOARD

A submerged outboard will require service within a few hours by an authorized
dealer once the outboard is recovered from the water. This immediate attention by
a servicing dealer is necessary once the engine is exposed to the atmosphere to
minimize internal corrosion damage to the engine.
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STORAGE

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STORAGE PREPARATION

The major consideration in preparing your outboard for storage is to protect it from
rust, corrosion, and damage caused by freezing of trapped water.
The following storage procedures should be followed to prepare your outboard for
out-of-season storage or prolonged storage (two months or longer).
CAUTION
Never start or run your outboard (even momentarily) without water circu-
lating through the cooling water intake in the gear case to prevent dam-
age to the water pump (running dry) or overheating of the engine.
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Fuel system
IMPORTANT: Gasoline containing alcohol (ethanol or methanol) can cause
a formation of acid during storage and can damage the fuel system. If the
gasoline being used contains alcohol, it is advisable to drain as much of the
remaining gasoline as possible from the fuel tank, remote fuel line, and
engine fuel system.
Fill the fuel system (tank, hoses, fuel pump, and carburetor) with treated
(stabilized) fuel to help prevent formation of varnish and gum. Proceed with
following instructions.
1. Portable Fuel Tank – Pour the required amount of Gasoline Stabilizer (follow
instructions on container) into fuel tank. Tip fuel tank back and forth to mix
stabilizer with the fuel.
2. Permanently Installed Fuel Tank – Pour the required amount of Gasoline
Stabilizer (follow instructions on container) into a separate container and mix
with approximately one quart (one liter) of gasoline. Pour this mixture into fuel
tank.
3. Place the outboard in water or connect flushing attachment for circulating
cooling water. Run the engine for ten minutes to allow treated fuel to reach the
carburetor.
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Protecting External Outboard Components
4. Lubricate all outboard components listed in the Inspection and Maintenance
Schedule.
5. Touch up any paint nicks. See your dealer for touch-up paint.
6. Spray Quicksilver or Mercury Precision Lubricants Corrosion Guard on
external metal surfaces (except corrosion control anodes).
90-10170R40
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Protecting Internal Engine Components
Note: Before performing Steps 7 and 8, make sure the fuel system has been
prepared for storage. Refer to Fuel System on previous page.
7. Place the outboard in water or connect flushing attachment for circulating
cooling water. Start the engine and let it run in neutral to warm up.
8. With engine running at fast idle, stop the fuel flow by disconnecting the remote
fuel line. When engine begins to stall, quickly sprayQuicksilver or Mercury
Precision Storage Seal into carburetor until engine stops from lack of fuel.
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9. Remove the spark plugs and inject a five second spray of Storage Seal around
the inside of each cylinder.
10. Rotate the flywheel manually several times to distribute the storage seal in the
cylinders. Reinstall spark plugs.
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Gear Case
11. Drain and refill the gear case lubricant (refer to maintenance procedure).
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Positioning Outboard for Storage
Store outboard in an upright (vertical) position to allow water to drain out of
outboard.
If outboard is stored tilted up in freezing temperature, trapped cooling
water or rain water that may have entered the propeller exhaust outlet in
the gear case could freeze and cause damage to the outboard.
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Battery Storage
1. Follow the battery manufacturers instructions for storage and recharging.
2. Remove the battery from the boat and check water level. Recharge if
necessary.
3. Store the battery in a cool, dry place.
4. Periodically check the water level and recharge the battery during storage.
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TROUBLESHOOTING

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1
STARTER MOTOR WILL NOT CRANK THE ENGINE (ELECTRIC START
MODELS)
Possible Causes
•
Blown 20 Amp fuse in the starting circuit. Refer to Maintenance Section.
•
Outboard is not shifted to neutral position.
•
Weak battery or battery connections are loose or corroded.
•
Ignition key switch failure.
•
Wiring or electrical connection faulty.
•
Starter motor or starter solenoid failure.
2
ENGINE WILL NOT START
Possible Causes
•
Lanyard stop switch not in RUN position.
•
Incorrect starting procedure. Refer to Operating Section.
•
Old or contaminated gasoline.
•
Engine flooded. Refer to Operating Section.
•
Fuel is not reaching the engine.
a. Fuel tank is empty.
b. Fuel tank vent not open or restricted.
c. Fuel line is disconnected or kinked.
d. Primer bulb not squeezed.
e. Primer bulb check valve is faulty.
f. Fuel filter is obstructed. Refer to Maintenance Section.
g. Fuel pump failure.
h. Fuel tank filter obstructed.
•
Ignition system component failure.
•
Spark plugs fouled or defective. Refer to Maintenance Section.
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CAUTION
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