23
90-10183R30
GB
goh93
2
4-53
1
N
N
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MAINTENANCE
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PROPELLER REPLACEMENT
WARNING
If the propeller shaft is rotated while the engine is in gear, there is the pos-
sibility that the engine will crank over and start. To prevent this type of
accidental engine starting and possible serious injury caused from being
struck by a rotating propeller, always shift outboard to neutral position
and remove spark plug leads when you are servicing the propeller.
1 Shift outboard to neutral (N) position.
2 Remove the spark plug leads to prevent engine from starting.
3 Straighten the bent tabs on the propeller nut retainer.
4 Place a block of wood between gear case and propeller to hold propeller and
remove propeller nut.
5 Pull propeller straight off shaft. If propeller is seized to the shaft and cannot be
removed, have the propeller removed by an authorized dealer.
goh62
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8
9-10
7
a
c
b
d
a
c
b
d
e
f
a
a
b
b
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PROPELLER REPLACEMENT (CONTINUED)
6
Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants
Anti-Corrosion Grease or 2-4-C Marine Lubricant with Teflon.
IMPORTANT: To prevent the propeller hub from corroding and seizing to the
propeller shaft, especially in salt water, always apply a coat of the
recommended lubricant to the entire propeller shaft at the recommended
maintenance intervals and also each time the propeller is removed.
7 Flo-Torque I Drive Hub Propellers – Install forward thrust hub (a), propeller (b),
propeller nut retainer (c) and propeller nut (d) onto the shaft.
8 Flo-Torque II Drive Hub Propellers – Install forward thrust hub (a), propeller (b),
replaceable drive sleeve (c), rear thrust hub (d), propeller nut retainer (e) and
propeller nut (f) onto the shaft.
9 Place propeller nut retainer over pins (a). Place a block of wood between gear
case and propeller and tighten propeller nut to 55 lb. ft. (75 N·m), aligning flat
sides of the propeller nut with tabs on the propeller nut retainer.
10Secure propeller nut by bending tabs (b) up and against the flats on the
propeller nut.
11 Reinstall spark plug leads.
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1
2
3
ohm16
SPARK PLUG INSPECTION AND REPLACEMENT
WARNING
Avoid serious injury or death from fire or explosion caused by damaged
spark plug boots (a). Damaged spark plug boots can emit sparks. Sparks
can ignite fuel vapors under the engine cowl. To avoid damaging spark
plug boots, do not use any sharp object or metal tool such as pliers,
screwdriver, etc. to remove spark plug boots.
1 Remove the spark plug boots (a) by twisting the rubber boots slightly and pull
off.
2 Remove the spark plugs to inspect. Replace spark plug if electrode is worn or
the insulator is rough, cracked, broken, blistered or fouled.
3 Set the spark plug gap. See Specification Chart in General Information Section.
4 Before reinstalling spark plugs, clean away dirt on the spark plug seats. Install
plugs finger tight, and tighten 1/4 turn or torque to 20 lb. ft. (27 N·m).
goh95
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2
a
omc3
FUSE REPLACEMENT – ELECTRIC START MODELS
IMPORTANT: Always carry spare SFE 20 AMP fuses.
The electric starting circuit is protected from overload by an SFE 20 AMP fuse. If
the fuse is blown, the electric starter motor will not operate. Try to locate and
correct the cause of the overload. If the cause is not found, the fuse may blow
again.
1 Open the fuse holder and look at the silver colored band inside the fuse. If band
is broken (a), replace the fuse. Replace fuse with a new fuse with the same
rating.
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TIMING BELT INSPECTION
2
Inspect the timing belt and have it replaced by an authorized dealer if any of
the following conditions are found.
a. Cracks in the back of the belt or in the base of the belt teeth.
b. Excessive wear at the roots of the cogs.
c. Rubber portion swollen by oil.
d. Belt surfaces roughened.
e. Signs of wear on edges or outer surfaces of belt.
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