MERCURY F9.9 EFI MLH Outboard Motor / Long Shaft / Manual Start, F8 MLH Outboard Motor / Long Shaft / Manual Start, F8 ELH Outboard Motor / Long Shaft / Electric Start, F9.9 EFI ELH Outboard Motor / Long Shaft / Electric Start, F9.9 MH Outboard Motor / Short Shaft / Manual Start Manual

Operation

Maintenance

8M0145517 418 eng

and

Installation

Manual

8/9.9 and 9.9 Command Thrust/ProKicker FourStroke

© 2018 Mercury Marine

eng

Welcome

You have selected one of the finest marine power packages available. It
incorporates numerous design features to ensure operating ease and durability.

With proper care and maintenance, you will enjoy using this product for many
boating seasons. To ensure maximum performance and carefree use, we ask
that you thoroughly read this manual.

The Operation and Maintenance Manual contains specific instructions for using
and maintaining your product. We suggest that this manual remain with the
product for ready reference whenever you are on the water.

Thank you for purchasing one of our products. We sincerely hope your boating
will be pleasant!

Mercury Marine, Fond du Lac, Wisconsin, U.S.A.

Name / function:

John Pfeifer, President,
Mercury Marine

Read This Manual Thoroughly

IMPORTANT: If you do not understand any portion of this manual, contact your
dealer. Your dealer can also provide a demonstration of actual starting and
operating procedures.

Notice

Throughout this publication, and on your power package, warnings, cautions,

and notices, accompanied by the International Hazard Symbol !, may be
used to alert the installer and user to special instructions concerning a
particular service or operation that may be hazardous if performed incorrectly
or carelessly. Observe them carefully.

These safety alerts alone cannot eliminate the hazards that they signal. Strict
compliance with these special instructions while performing the service, plus
common sense operation, are major accident prevention measures.

WARNING

!

Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.

!

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.

eng i

NOTICE

Indicates a situation which, if not avoided, could result in engine or major
component failure.

IMPORTANT: Identifies information essential to the successful completion of
the task.

NOTE: Indicates information that helps in the understanding of a particular step
or action.

IMPORTANT: The operator (driver) is responsible for the correct and safe
operation of the boat, the equipment aboard, and the safety of all occupants
aboard. We strongly recommend that the operator read this Operation and
Maintenance Manual and thoroughly understand the operational instructions for
the power package and all related accessories before the boat is used.

California Proposition 65

WARNING: This product can expose you to chemicals including
gasoline engine exhaust, which is known to the State of
California to cause cancer and birth defects or other
reproductive harm. For more information go to

www.P65Warnings.ca.gov.

The serial numbers are the manufacturer’s keys to numerous engineering
details that apply to your Mercury Marine power package. When contacting
Mercury Marine about service, always specify model and serial numbers.

Descriptions and specifications contained herein were in effect at the time this
was approved for printing. Mercury Marine, whose policies are based on
continuous improvement, reserves the right to discontinue models at any time
or to change specifications or designs without notice and without incurring
obligation.

Warranty Message

The product you have purchased comes with a limited warranty from Mercury
Marine; the terms of the warranty are set forth in the Warranty Manual included
with the product. The Warranty Manual contains a description of what is
covered, what is not covered, the duration of coverage, how to best obtain
warranty coverage, important disclaimers and limitations of damages, and
other related information. Please review this important information.

Mercury Marine products are designed and manufactured to comply with our
own high quality standards, applicable industry standards and regulations, as
well as certain emissions regulations. At Mercury Marine every engine is
operated and tested before it is boxed for shipment to make sure that the
product is ready for use. In addition, certain Mercury Marine products are
tested in a controlled and monitored environment, for up to 10 hours of engine
run time, in order to verify and make a record of compliance with applicable
standards and regulations. All Mercury Marine product, sold as new, receives
the applicable limited warranty coverage, whether the engine participated in
one of the test programs described above or not.

ii eng

Copyright and Trademark Information

© MERCURY MARINE. All rights reserved. Reproduction in whole or in
part without permission is prohibited.

Alpha, Axius, Bravo One, Bravo Two, Bravo Three, Circle M with Waves Logo,
GO BOLDLY, K‑planes, Mariner, MerCathode, MerCruiser, Mercury, Mercury
with Waves Logo, Mercury Marine, Mercury Precision Parts, Mercury
Propellers, Mercury Racing, MotorGuide, OptiMax, Pro XS, Quicksilver,
SeaCore, Skyhook, SmartCraft, Sport‑Jet, Verado, VesselView, Zero Effort,
Zeus, #1 On the Water and We're Driven to Win are registered trademarks of
Brunswick Corporation. Mercury Product Protection is a registered service
mark of Brunswick Corporation.

Identification Records

Please record the following applicable information:

Outboard

Engine Model and Horsepower

Engine Serial Number

Gear Ratio

Propeller Number Pitch Diameter

Watercraft Identification Number (WIN) or Hull
Identification Number (HIN)

Boat Manufacturer Boat Model Length

Exhaust Gas Emissions Certification Number (Europe Only)

Purchase Date

eng iii

eng iv

General Information

Boater's Responsibilities..................................................................................... 1

Before Operating Your Outboard........................................................................ 1

Boat Horsepower Capacity................................................................................. 1

High‑Speed and High‑Performance Boat Operation.......................................... 2

Outboard Remote Control Models ..................................................................... 2

Remote Steering Notice......................................................................................3

Lanyard Stop Switch........................................................................................... 3

Protecting People in the Water........................................................................... 6

Passenger Safety Message ‑ Pontoon Boats and Deck Boats...........................6

Wave and Wake Jumping................................................................................... 8

Impact with Underwater Hazards........................................................................8

Exhaust Emissions........................................................................................... 10

Selecting Accessories for Your Outboard......................................................... 12

Safe Boating Recommendations...................................................................... 12

Recording Serial Number ................................................................................ 15

Model Year Production Code............................................................................15

8/9.9 FourStroke Specifications ....................................................................... 16

Component Identification ‑ Standard Models....................................................17

Component Identification ‑ Command Thrust/ProKicker Models...................... 20

Transporting

Carrying, Storing, and Transporting Your Outboard when Removed from Boat

.......................................................................................................................... 22

Trailering Boat/Outboard ‑ Models with Power Tilt........................................... 23

Trailering Boat/Outboard ‑ Models without Power Tilt...................................... 23

Fuel and Oil

Fuel Requirements........................................................................................... 25

Low Permeation Fuel Hose Requirement ........................................................ 26

EPA Pressurized Portable Fuel Tank Requirements........................................ 26

Fuel Demand Valve (FDV) Requirement.......................................................... 26

Mercury Marine's Pressurized Portable Fuel Tank........................................... 27

Filling Fuel Tank............................................................................................... 28

Engine Oil Recommendations.......................................................................... 28

Checking Engine Oil......................................................................................... 29

eng v

Features and Controls

Tiller Handle Features...................................................................................... 31

Remote Control Features................................................................................. 37

Warning System............................................................................................... 38

Power Tilt (if equipped)..................................................................................... 39

Setting The Transom Angle Of Your Outboard ................................................41

Adjusting Transom Angle..................................................................................43

Shallow Water Operation.................................................................................. 43

Tilting Outboard................................................................................................ 44

Trim Tab Adjustment........................................................................................ 45

Operation

Prestarting Check List.......................................................................................46

Operating in Freezing Temperatures................................................................ 46

Operating in Saltwater or Polluted Water......................................................... 46

Operating Outboard as an Auxiliary Engine..................................................... 47

Prestarting Instructions..................................................................................... 47

Engine Break‑in Procedure...............................................................................48

Starting the Engine ‑ Tiller Handle Models....................................................... 48

Starting the Engine ‑ Remote Control Models.................................................. 51

Starting a Hot Engine........................................................................................53

Gear Shifting .................................................................................................... 54

Stopping the Engine ........................................................................................ 55

Emergency Starting.......................................................................................... 55

vi eng

Maintenance

Cleaning Care Recommendations.................................................................... 58

EPA Emission Regulations............................................................................... 60

Inspection and Maintenance Schedule ............................................................ 61

Flushing the Cooling System............................................................................ 62

Top Cowl Removal And Installation.................................................................. 64

Battery Inspection ............................................................................................ 64

Exterior Care.....................................................................................................64

Fuel System...................................................................................................... 65

Steering Link Rod Fasteners............................................................................ 65

Corrosion Control Anode ................................................................................. 67

Propeller Replacement .................................................................................... 67

Fuse Replacement ‑ Electric Start Models ...................................................... 69

Spark Plug Inspection and Replacement..........................................................70

Timing Belt Inspection...................................................................................... 71

Changing Engine Oil ........................................................................................ 71

Lubrication Points ............................................................................................ 73

Gearcase Lubrication........................................................................................75

Checking Power Tilt Fluid................................................................................. 77

Submerged Outboard....................................................................................... 78

Storage

Storage Preparation..........................................................................................79

Protecting External Outboard Components...................................................... 79

Protecting Internal Engine Components........................................................... 80

Gearcase.......................................................................................................... 80

Positioning Outboard for Storage..................................................................... 80

Battery Storage................................................................................................. 81

Troubleshooting

Starter Motor Will Not Crank the Engine (Electric Start Models) ..................... 82

Engine Will Not Start.........................................................................................82

Engine Runs Erratically.................................................................................... 82

Performance Loss.............................................................................................83

Battery Will Not Hold Charge............................................................................ 83

eng vii

Owner Service Assistance

Service Assistance........................................................................................... 84

Ordering Literature............................................................................................86

Installation

Boat Horsepower Capacity............................................................................... 88

Start in Gear Protection.................................................................................... 88

Selecting Accessories for Your Outboard......................................................... 88

Low Permeation Fuel Hose Requirement ........................................................ 89

Mercury Marine Validated Engine Mounting Hardware.................................... 89

Installing Outboard............................................................................................90

Remote Control Installation.............................................................................. 92

Steering Link Rod Fasteners............................................................................ 93

Remote Wire Harness Connection................................................................... 95

Control Cable Installation..................................................................................97

Battery Installation ‑ Electric Start Models...................................................... 101

Battery Connections....................................................................................... 102

Propeller Installation....................................................................................... 102

Maintenance Log

Maintenance Log............................................................................................ 104

viii eng

GENERAL INFORMATION

Boater's Responsibilities

The operator (driver) is responsible for the correct and safe operation of the
boat and the safety of its occupants and general public. It is strongly
recommended that each operator read and understand this entire manual
before operating the outboard.

Be sure that at least one additional person onboard is instructed in the basics
of starting and operating the outboard and boat handling in case the driver is
unable to operate the boat.

Before Operating Your Outboard

Read this manual carefully. Learn how to operate your outboard properly. If you
have any questions, contact your dealer.

Safety and operating information that is practiced, along with using good
common sense, can help prevent personal injury and product damage.

This manual as well as safety labels posted on the outboard use the following
safety alerts to draw your attention to special safety instructions that should be
followed.

WARNING

!

Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.

!

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.

NOTICE

Indicates a situation which, if not avoided, could result in engine or major
component failure.

Boat Horsepower Capacity

WARNING

!

Exceeding the boat's maximum horsepower rating can cause serious injury
or death. Overpowering the boat can affect boat control and flotation
characteristics or break the transom. Do not install an engine that exceeds
the boat's maximum power rating.

eng 1

U.S. COAST GUARD CAP ACITY

MAXIMUM HORSEPOWER XXX

MAXIMUM PERSON
CAPACITY (POUNDS)

XXX

MAXIMUM WEIGHT
CAPACITY XXX

26777

N

63103

GENERAL INFORMATION

Do not overpower or overload your boat. Most boats will carry a required
capacity plate indicating the maximum acceptable power and load as
determined by the manufacturer following certain federal guidelines. If in doubt,
contact your dealer or the boat manufacturer.

High‑Speed and High‑Performance Boat Operation

If your outboard is to be used on a high‑speed or high‑performance boat with
which you are unfamiliar, we recommend that you do not operate it at its high
speed capability without first requesting an initial orientation and familiarization
demonstration ride with your dealer or an operator experienced with your boat/
outboard combination. For additional information, obtain a copy of our
Hi‑Performance Boat Operation booklet from your dealer, distributor, or
Mercury Marine.

Outboard Remote Control Models

The remote control connected to your outboard must be equipped with a start
in neutral only protection device. This prevents the engine from starting when
the shift is actuated in any position other than neutral.

WARNING

!

Starting the engine with the drive in gear can cause serious injury or death.
Never operate a boat that does not have a neutral‑safety‑protection device.

2 eng

a

10366

a

GENERAL INFORMATION

Remote Steering Notice

The steering link rod that connects the steering cable to the engine must be
fastened utilizing self‑locking nuts. These self‑locking nuts must never be
replaced with common nuts (nonlocking) as they will work loose and vibrate off,
freeing the link rod to disengage.

WARNING

!

Improper fasteners or improper installation procedures can result in
loosening or disengagement of the steering link rod. This can cause a
sudden, unexpected loss of boat control, resulting in serious injury or death
due to occupants being thrown within or out of the boat. Always use required
components and follow instructions and torque procedures.

a - Self‑locking nuts

Lanyard Stop Switch

The purpose of a lanyard stop switch is to turn off the engine when the operator
moves far enough away from the operator's position (as in accidental ejection
from the operator's position) to activate the switch. Tiller handle outboards and
some remote control units are equipped with a lanyard stop switch. A lanyard
stop switch can be installed as an accessory ‑ generally on the dashboard or
side adjacent to the operator's position.

A decal near the lanyard stop switch is a visual reminder for the operator to
attach the lanyard to their personal flotation device (PFD) or wrist.

eng 3

c

a

b

53910

OFF

RUN

ATTACH LANYARD

GENERAL INFORMATION

The lanyard cord is usually 122–152 cm (4–5 feet) in length when stretched out,
with an element on one end made to be inserted into the switch and a clip on
the other end for attaching to the operator's PFD or wrist. The lanyard is coiled
to make its at‑rest condition as short as possible to minimize the likelihood of
lanyard entanglement with nearby objects. Its stretched‑out length is made to
minimize the likelihood of accidental activation should the operator choose to
move around in an area close to the normal operator's position. If it is desired
to have a shorter lanyard, wrap the lanyard around the operator's wrist or leg,
or tie a knot in the lanyard.

a - Lanyard cord clip
b - Lanyard decal
c - Lanyard stop switch

Read the following Safety Information before proceeding.
Important Safety Information: The purpose of a lanyard stop switch is to stop

the engine when the operator moves far enough away from the operator's
position to activate the switch. This would occur if the operator accidentally falls
overboard or moves within the boat a sufficient distance from the operator's
position. Falling overboard and accidental ejections are more likely to occur in
certain types of boats such as low sided inflatables, bass boats, high
performance boats, and light, sensitive handling fishing boats operated by a
hand tiller. Falling overboard and accidental ejections are also likely to occur as
a result of poor operating practices such as sitting on the back of the seat or
gunwale at planing speeds, standing at planing speeds, sitting on elevated
fishing boat decks, operating at planing speeds in shallow or obstacle infested
waters, releasing your grip on a steering wheel or tiller handle that is pulling in
one direction, drinking alcohol or consuming drugs, or daring high speed boat
maneuvers.

4 eng

GENERAL INFORMATION

While activation of the lanyard stop switch will stop the engine immediately, a
boat will continue to coast for some distance depending upon the velocity and
degree of any turn at shut down. However, the boat will not complete a full
circle. While the boat is coasting, it can cause injury to anyone in the boat's
path as seriously as the boat would when under power.

We strongly recommend that other occupants be instructed on proper starting
and operating procedures should they be required to operate the engine in an
emergency (if the operator is accidentally ejected).

WARNING

!

If the operator falls out of the boat, stop the engine immediately to reduce the
possibility of serious injury or death from being struck by the boat. Always
properly connect the operator to the stop switch using a lanyard.

WARNING

!

Avoid serious injury or death from deceleration forces resulting from
accidental or unintended stop switch activation. The boat operator should
never leave the operator's station without first disconnecting the stop switch
lanyard from the operator.

Accidental or unintended activation of the switch during normal operation is
also a possibility. This could cause any, or all, of the following potentially
hazardous situations:

• Occupants could be thrown forward due to unexpected loss of forward
motion ‑ a particular concern for passengers in the front of the boat who
could be ejected over the bow and possibly struck by the gearcase or
propeller.

• Loss of power and directional control in heavy seas, strong current, or
high winds.

• Loss of control when docking.

KEEP THE LANYARD STOP SWITCH AND LANYARD CORD IN GOOD
OPERATING CONDITION

Before each use, check to ensure the lanyard stop switch works properly. Start
the engine and stop it by pulling the lanyard cord. If the engine does not stop,
have the switch repaired before operating the boat.

Before each use, visually inspect the lanyard cord to ensure it is in good
working condition and that there are no breaks, cuts, or wear to the cord.
Check that the clips on the ends of the cord are in good condition. Replace any
damaged or worn lanyard cords.

eng 5

21604

GENERAL INFORMATION

Protecting People in the Water

WHILE YOU ARE CRUISING

It is very difficult for a person standing or floating in the water to take quick
action to avoid a boat heading in his/her direction, even at slow speed.

Always slow down and exercise extreme caution any time you are boating in an
area where there might be people in the water.

Whenever a boat is moving (coasting) and the outboard gear shift is in neutral
position, there is sufficient force by the water on the propeller to cause the
propeller to rotate. This neutral propeller rotation can cause serious injury.

WHILE THE BOAT IS STATIONARY

WARNING

!

A spinning propeller, a moving boat, or any solid device attached to the boat
can cause serious injury or death to swimmers. Stop the engine immediately
whenever anyone in the water is near your boat.

Shift the outboard into neutral and shut off the engine before allowing people to
swim or be in the water near your boat.

Passenger Safety Message ‑ Pontoon Boats and Deck Boats

Whenever the boat is in motion, observe the location of all passengers. Do not
allow any passengers to stand or use seats other than those designated for
traveling faster than idle speed. A sudden reduction in boat speed, such as
plunging into a large wave or wake, a sudden throttle reduction, or a sharp
change of boat direction, could throw them over the front of the boat. Falling
over the front of the boat between the two pontoons will position them to be run
over by the outboard.

BOATS HAVING AN OPEN FRONT DECK

No one should ever be on the deck in front of the fence while the boat is in
motion. Keep all passengers behind the front fence or enclosure.

6 eng

26782

26783

GENERAL INFORMATION

Persons on the front deck could easily be thrown overboard or persons
dangling their feet over the front edge could get their legs caught by a wave
and pulled into the water.

WARNING

!

Sitting or standing in an area of the boat not designed for passengers at
speeds above idle can cause serious injury or death. Stay back from the front
end of deck boats or raised platforms and remain seated while the boat is in
motion.

BOATS WITH FRONT MOUNTED, RAISED PEDESTAL FISHING SEATS

Elevated fishing seats are not intended for use when the boat is traveling faster
than idle or trolling speed. Sit only in seats designated for traveling at faster
speeds.

Any unexpected, sudden reduction in boat speed could result in the elevated
passenger falling over the front of the boat.

eng 7

26784

GENERAL INFORMATION

Wave and Wake Jumping

Operating recreational boats over waves and wake is a natural part of boating.
However, when this activity is done with sufficient speed to force the boat hull
partially or completely out of the water, certain hazards arise, particularly when
the boat enters the water.

The primary concern is the boat changing direction while in the midst of the
jump. In such case, the landing may cause the boat to veer violently in a new
direction. Such a sharp change in direction can cause occupants to be thrown
out of their seats, or out of the boat.

WARNING

!

Wave or wake jumping can cause serious injury or death from occupants
being thrown within or out of the boat. Avoid wave or wake jumping whenever
possible.

There is another less common hazardous result from allowing your boat to
launch off a wave or wake. If the bow of your boat pitches down far enough
while airborne, upon water contact it may penetrate under the water surface
and submarine for an instant. This will bring the boat to a nearly instantaneous
stop and can send the occupants flying forward. The boat may also steer
sharply to one side.

Impact with Underwater Hazards

Your outboard is equipped with a hydraulic trim and tilt system that also
contains a shock absorbing feature. This feature helps the outboard withstand
damage in the case of impact with an underwater object at low to moderate
speeds. At higher speeds, the force of the impact may exceed the system’s
ability to absorb the energy of the impact and cause serious product damage.

No impact protection exists while in reverse. Use extreme caution when
operating in reverse to avoid striking underwater objects.

8 eng

26785

GENERAL INFORMATION

Reduce speed and proceed with caution whenever you drive a boat in shallow
water areas or in areas where you suspect underwater obstacles may exist that
could be struck by the outboard or the boat bottom. The most significant

action you can take to help reduce injury or impact damage from striking
a floating or underwater object is to control the boat speed. Under these
conditions, boat speed should be kept to the minimum planing speed,
typically 24 to 40 km/h (15 to 25 mph).

WARNING

!

Avoid serious injury or death from all or part of an outboard or drive unit
coming into the boat after striking a floating or underwater object. When
operating in waters where objects may be at the surface or just under the
surface of the water, reduce your speed and keep a vigilant lookout.

Examples of objects that can cause engine damage are dredging pipes,
bridge supports, wing dams, trees, stumps, and rocks.

Striking a floating or underwater object could result in any of an infinite number
of situations. Some of these situations could yield the following:

• Part of the outboard or the entire outboard could break loose and fly into
the boat.

• The boat could move suddenly in a new direction. A sharp change in
direction can cause occupants to be thrown out of their seats or out of the
boat.

• The boat's speed could rapidly reduce. This will cause occupants to be
thrown forward or even out of the boat.

• The outboard or boat could sustain impact damage.

After striking a submerged object, stop the engine as soon as possible and
inspect it for any broken or loose parts. If damage is present or suspected, the
outboard should be taken to an authorized dealer for a thorough inspection and
necessary repair.

The boat should also be checked for any hull fractures, transom fractures, or
water leaks. If water leaks are discovered after an impact, immediately activate
the bilge pump.

eng 9

GENERAL INFORMATION

Operating a damaged outboard could cause additional damage to other parts
of the outboard or could affect control of the boat. If continued running is
necessary, do so at greatly reduced speeds.

WARNING

!

Operating a boat or engine with impact damage can result in product
damage, serious injury, or death. If the vessel experiences any form of
impact, have an authorized Mercury Marine dealer inspect and repair the
vessel or power package.

SAFETY INSTRUCTIONS FOR HAND-TILLED OUTBOARDS

No person or cargo should occupy the area directly in front of the outboard
while the boat is in motion. If an underwater obstacle is struck, the outboard will
tilt up and could seriously injure anyone occupying this area.

Models with Clamp Screws:

Some outboards come with transom bracket clamp screws. The use of clamp
bracket screws alone, is insufficient to properly and safely secure the outboard
to the transom. Proper installation of the outboard includes bolting the engine to
the boat through the transom. Refer to Installation ‑ Installing Outboard for
more complete installation information.

WARNING

!

Failure to correctly fasten the outboard could result in the outboard propelling
off the boat transom resulting in property damage, serious injury, or death.
Before operation, the outboard must be correctly installed with the required
mounting hardware.

If an obstacle is struck at planing speed and the outboard is not securely
fastened to the transom, it is possible the outboard could lift off the transom
and land in the boat.

Exhaust Emissions

BE ALERT TO CARBON MONOXIDE POISONING

Carbon monoxide (CO) is a deadly gas that is present in the exhaust fumes of
all internal combustion engines, including the engines that propel boats, and
the generators that power boat accessories. By itself, CO is odorless, colorless,
and tasteless, but if you can smell or taste engine exhaust, you are inhaling
CO.

Early symptoms of carbon monoxide poisoning, which are similar to the
symptoms of seasickness and intoxication, include headache, dizziness,
drowsiness, and nausea.

10 eng

41127

co

co

co

co

co

co

co

co

co

co

co

co

co

co

co

co

co

co

co

co

GENERAL INFORMATION

WARNING

!

Inhaling engine exhaust gases can result in carbon monoxide poisoning,
which can lead to unconsciousness, brain damage, or death. Avoid exposure
to carbon monoxide.

Stay clear from exhaust areas when engine is running. Keep the boat
well‑ventilated while at rest or underway.

STAY CLEAR OF EXHAUST AREAS

Engine exhaust gases contain harmful carbon monoxide. Avoid areas of
concentrated engine exhaust gases. When engines are running, keep
swimmers away from the boat, and do not sit, lie, or stand on swim platforms or
boarding ladders. While underway, do not allow passengers to be positioned
immediately behind the boat (platform dragging, teak/body surfing). This
dangerous practice not only places a person in an area of high engine exhaust
concentration, but also subjects them to the possibility of injury from the boat
propeller.

GOOD VENTILATION

Ventilate the passenger area, open side curtains or forward hatches to remove
fumes.

Example of desired air flow through the boat:

POOR VENTILATION

Under certain running and/or wind conditions, permanently enclosed or canvas
enclosed cabins or cockpits with insufficient ventilation may draw in carbon
monoxide. Install one or more carbon monoxide detectors in your boat.

Although the occurrence is rare, on a very calm day, swimmers and
passengers in an open area of a stationary boat that contains, or is near, a
running engine may be exposed to a hazardous level of carbon monoxide.

eng 11

21626

a

b

a

b

21628

GENERAL INFORMATION

1. Examples of poor ventilation while the boat is stationary:

a - Operating the engine when the boat is moored in a confined space
b - Mooring close to another boat that has its engine operating

2. Examples of poor ventilation while the boat is moving:

a - Operating the boat with the trim angle of the bow too high
b - Operating the boat with no forward hatches open (station wagon effect)

Selecting Accessories for Your Outboard

Genuine Mercury Precision or Quicksilver Accessories have been specifically
designed and tested for your outboard. These accessories are available from
Mercury Marine dealers.

IMPORTANT: Check with your dealer before installing accessories. The misuse
of approved accessories or the use of nonapproved accessories can damage
the product.

Some accessories not manufactured or sold by Mercury Marine are not
designed to be safely used with your outboard or outboard operating system.
Acquire and read the installation, operation and maintenance manuals for all
your selected accessories.

Safe Boating Recommendations

To safely enjoy the waterways, familiarize yourself with local and all other
governmental boating regulations and restrictions and consider the following
suggestions.

Know and obey all nautical rules and laws of the waterways.

12 eng

GENERAL INFORMATION

• We recommend that all powerboat operators complete a boating safety
course. In the U.S., the U.S. Coast Guard Auxiliary, the Power Squadron,
the Red Cross, and your state or provincial boating law enforcement
agency provide courses. For more information in the U.S., call the Boat
U.S. Foundation at 1‑800‑336‑BOAT (2628).

Perform safety checks and required maintenance.

• Follow a regular schedule and ensure that all repairs are properly made.

Check safety equipment onboard.

• Here are some suggestions of the types of safety equipment to carry
when boating:

Approved fire extinguishers

Signal devices: flashlight, rockets or flares, flag, and whistle or horn

Tools necessary for minor repairs

Anchor and extra anchor line

Manual bilge pump and extra drain plugs

Drinking water

Radio

Paddle or oar

Spare propeller, thrust hubs, and an appropriate wrench

First aid kit and instructions

Waterproof storage containers

Spare operating equipment, batteries, bulbs, and fuses

Compass and map or chart of the area

Personal flotation device (one per person onboard)

Watch for signs of weather change and avoid foul weather and rough‑sea
boating.

Tell someone where you are going and when you expect to return.

Passenger boarding.

• Stop the engine whenever passengers are boarding, unloading, or are
near the back (stern) of the boat. Shifting the drive unit into neutral is not
sufficient.

Use personal flotation devices.

• Federal law requires that there be a U.S. Coast Guard‑approved life
jacket (personal flotation device), correctly sized and readily accessible
for every person onboard, plus a throwable cushion or ring. We strongly
advise that everyone wear a life jacket at all times while in the boat.

Prepare other boat operators.

eng 13

GENERAL INFORMATION

• Instruct at least one person onboard in the basics of starting and
operating the engine and boat handling in case the driver becomes
disabled or falls overboard.

Do not overload your boat.

• Most boats are rated and certified for maximum load (weight) capacities
(refer to your boat's capacity plate). Know your boat's operating and
loading limitations. Know if your boat will float if it is full of water. When in
doubt, contact your authorized Mercury Marine dealer or the boat
manufacturer.

Ensure that everyone in the boat is properly seated.

• Do not allow anyone to sit or ride on any part of the boat that was not
intended for such use. This includes the backs of seats, gunwales,
transom, bow, decks, raised fishing seats, and any rotating fishing seat.
Passengers should not sit or ride anywhere that sudden unexpected
acceleration, sudden stopping, unexpected loss of boat control, or sudden
boat movement could cause a person to be thrown overboard or into the
boat. Ensure that all passengers have a proper seat and are in it before
any boat movement.

Never operate a boat while under the influence of alcohol or drugs. It is
the law.

• Alcohol or drugs can impair your judgment and greatly reduce your ability
to react quickly.

Know your boating area and avoid hazardous locations.

Be alert.

• The operator of the boat is responsible by law to maintain a proper
lookout by sight and hearing. The operator must have an unobstructed
view particularly to the front. No passengers, load, or fishing seats should
block the operator's view when the boat is above idle or planing transition
speed. Watch out for others, the water, and your wake.

Never drive your boat directly behind a water‑skier.

• Your boat traveling at 40 km/h (25 mph) will overtake a fallen skier who is
61 m (200 ft) in front of you in five seconds.

Watch fallen skiers.

• When using your boat for waterskiing or similar activities, always keep a
fallen or down skier on the operator's side of the boat while returning to
attend to the skier. The operator should always have the down skier in
sight and never back up to the skier or anyone in the water.

Report accidents.

14 eng

XXXXXXXXX

XXXXXXXX

XXXX

AG

62972

38780

XXXXXXX

XXXXX XX

Mercu ry

Marine

Serial Number

Brunswick Corp.
Made in Japan

XX

XXXX XXX

HP XXX
LB XXX

KG XXX

KW XXX

Model Number

b

c

a

d

GENERAL INFORMATION

• Boat operators are required by law to file a boating accident report with
their state boating law enforcement agency when their boat is involved in
certain boating accidents. A boating accident must be reported if 1) there
is loss of life or probable loss of life, 2) there is personal injury requiring
medical treatment beyond first aid, 3) there is damage to boats or other
property where the damage value exceeds $500.00, or 4) there is
complete loss of the boat. Seek further assistance from local law
enforcement.

Recording Serial Number

It is important to record this number for future reference. The serial number is
located on the outboard, as shown.

a - Serial number
b - Model designation
c - Year manufactured
d - Certified Europe

Insignia (as applicable)

Model Year Production Code

The serial number decal lists the year of manufacture as an alpha code. This
code can be deciphered into a corresponding number utilizing the following
table.

Serial number decal alpha code

Model Year Manufactured Code
Alpha Production Code A B C D E F G H K X
Corresponding Number 1 2 3 4 5 6 7 8 9 0

Examples:

eng 15

GENERAL INFORMATION

• XX = 2000

• HK = 2089

• AG = 2017

8/9.9 FourStroke Specifications

Models 8 9.9

Power 5.9 kw (8 hp) 7.3 kw (9.9 hp)
Number of cylinders 2
Full throttle RPM range 5000–6000 RPM
Idle speed in forward

gear
Piston displacement 209.8 cc (12.8 cid)
Cylinder bore 55 mm (2.17 in.)
Piston stroke 44 mm (1.73 in.)
Valve clearance (cold)
Intake valve 0.13–0.17 mm (0.0051–0.0067 in.)
Exhaust valve 0.18–0.22 mm (0.0071–0.0087 in.)
Recommended spark

plug
Spark plug gap 0.9 mm (0.035 in.)
Gear ratio 2.08:1 2.42:1
Recommended

gasoline
Recommended oil
Engine oil capacity 800 ml (27.0 fl oz)
Gearcase lubricant

capacity
Battery rating (electric

start models)
Emission control

system
Sound at drivers ear

(ICOMIA 39‑94) dBA

Tiller handle vibration
(ICOMIA 38‑94) m/s²

320 ml (10.8 fl oz) 370 ml (12.5 fl oz)

465 marine cranking amps (MCA) or 350 cold

78.7 79.6

Standard Models

4.3 6.1

NGK DCPR6E

Refer to Fuel and Oil

Refer to Fuel and Oil

cranking amps (CCA)

Engine modification (EM)

9.9 Command Thrust/
ProKicker

900 RPM

9.9 Command Thrust/
ProKicker–PT

16 eng

60883

c

d

k

e

f

g

h

i

j

b

a

GENERAL INFORMATION

Component Identification ‑ Standard Models

STARBOARD SIDE VIEW

a - Cowl latch
b - Throttle only button
c - Throttle friction

d - Water pump indicator hole
e - Oil drain plug
f - Transom angle preset

g - Engine flush plug
h - Gear lubricant level plug
i - Water inlet
j - Gear lubricant fill/drain

k - Trim tab

adjustment knob

knob

plug

eng 17

a

b

c

d

e

f

57671

GENERAL INFORMATION

FRONT VIEW

a - Choke/fast idle knob
b - Oil pressure light
c - Fuel line connector
d - Start switch (electric tiller handle)
e - Lanyard safety switch
f - Copilot tension adjustment

18 eng

60884

a

b

c

d

GENERAL INFORMATION

PORT VIEW

a - Tiller lock release lever
b - Start switch (electric tiller handle model)
c - Steering friction adjustment lever (tiller model only)
d - Tilt lock knob

eng 19

a

b

c

d

e

g

h

j

k

l

m

n

i

p

o

f

60798

GENERAL INFORMATION

Component Identification ‑ Command Thrust/ProKicker Models

a - Transom bracket
b - Tilt support lever
c - Gear lubricant level plug
d - Primary water inlet
e - Gear lubricant fill/drain plug
f - Secondary water inlet
g - Anti‑ventilation plate
h - Engine flush plug
i - Water pump indicator hole
j - Cowl latch
k - Oil drain screw
l - Power tilt
m - Kicker strap
n - Throttle only button

20 eng

GENERAL INFORMATION

o - Throttle grip friction knob
p - Power tilt button

eng 21

27010

a

28530

abc

39056

37-892904-010

THIS SIDE UP

NOTICE

TRANSPORTING

Carrying, Storing, and Transporting Your Outboard when Removed from Boat

IMPORTANT: Ensure the proper procedures are followed for transportation and
storage of the outboard to avoid the possibility of oil leaks.

1. With the outboard still in the water, disconnect the remote fuel line and
run engine until it stops. This will drain fuel from the carburetor. Install the
protector cap over the fuel connector.

a - Protector cap

2. Remove outboard and hold it upright until the water is drained out. Keep
the outboard in an upright position when carrying.

3. Carry, transport, or store the outboard in any of the three positions shown.
These positions will prevent oil from draining out of the crankcase.

a - Upright position
b - Tiller handle down
c - Front side down

22 eng

26792

a

b

39058

TRANSPORTING

4. Never carry, store, or transport the outboard in the two positions shown.
Engine damage could result from oil draining out of the crankcase.

a - Tiller handle up
b - Front side up

Trailering Boat/Outboard ‑ Models with Power Tilt

Trailer your boat with the outboard tilted down in a vertical operating position.
If additional ground clearance is required, the outboard should be tilted up

using an accessory outboard support device. Refer to your local dealer for
recommendations. Additional clearance may be required for railroad crossings,
driveways and trailer bouncing.

IMPORTANT: Do not rely on the power tilt system or tilt support lever to
maintain proper ground clearance for trailering. The outboard tilt support lever
is not intended to support the outboard for trailering.

Shift the outboard to forward gear. This prevents the propeller from spinning
freely.

Trailering Boat/Outboard ‑ Models without Power Tilt

Trailer your boat with the outboard tilted down in a vertical operating position.
If additional ground clearance is required, the outboard should be tilted up

using the shallow water drive/trailering bracket. Additional clearance may be
required for railroad crossings, driveways, and trailer bouncing.

IMPORTANT: The tilt lock lever should be used to lock the outboard down
when trailering. This will prevent the outboard from bouncing and causing
possible damage to the outboard.

eng 23

TRANSPORTING

Shift the outboard to forward gear. This prevents the propeller from spinning
freely.

24 eng

FUEL AND OIL

Fuel Requirements

IMPORTANT: Use of improper gasoline can damage your engine. Engine
damage resulting from the use of improper gasoline is considered misuse
of the engine and will not be covered under the limited warranty.

FUEL RATINGS

Mercury outboard engines will operate satisfactorily with any major brand of
unleaded gasoline that meets the following specifications:

USA and Canada ‑ A posted pump octane rating of 87 (R+M)/2, minimum, for
most models. Premium gasoline 91 (R+M)/2 octane is also acceptable for most
models. Do not use leaded gasoline.

Outside USA and Canada ‑ A posted pump octane rating of 91 RON,
minimum, for most models. Premium gasoline (95 RON) is also acceptable for
all models. Do not use leaded gasoline.

USING REFORMULATED (OXYGENATED) GASOLINE (USA ONLY)

Reformulated gasoline is required in certain areas of the USA and is
acceptable for use in your Mercury Marine engine. The only oxygenate
currently in use in the USA is alcohol (ethanol, methanol, or butanol).

GASOLINE CONTAINING ALCOHOL

Bu16 Butanol Fuel Blends

Fuel blends of up to 16.1% butanol (Bu16) that meet the published Mercury
Marine fuel rating requirements are an acceptable substitute for unleaded
gasoline. Contact your boat manufacturer for specific recommendations on
your boat's fuel system components (fuel tanks, fuel lines, and fittings).

Methanol and Ethanol Fuel Blends

IMPORTANT: The fuel system components on your Mercury Marine engine will
withstand up to 10% alcohol (methanol or ethanol) content in the gasoline. Your
boat's fuel system may not be capable of withstanding the same percentage of
alcohol. Contact your boat manufacturer for specific recommendations on your
boat's fuel system components (fuel tanks, fuel lines, and fittings).

Be aware that gasoline containing methanol or ethanol may cause increased:

• Corrosion of metal parts

• Deterioration of rubber or plastic parts

• Fuel permeation through the rubber fuel lines

• Likelihood of phase separation (water and alcohol separating from the
gasoline in the fuel tank)

eng 25

FUEL AND OIL

WARNING

!

Fuel leakage is a fire or explosion hazard, which can cause serious injury or
death. Periodically inspect all fuel system components for leaks, softening,
hardening, swelling, or corrosion, particularly after storage. Any sign of
leakage or deterioration requires replacement before further engine
operation.

IMPORTANT: If you use gasoline that contains or might contain methanol or
ethanol, you must increase the frequency of inspection for leaks and
abnormalities.

IMPORTANT: When operating a Mercury Marine engine on gasoline containing
methanol or ethanol, do not store the gasoline in the fuel tank for long periods.
Cars normally consume these blended fuels before they can absorb enough
moisture to cause trouble; boats often sit idle long enough for phase separation
to take place. Internal corrosion may occur during storage if alcohol has
washed protective oil films from internal components.

Low Permeation Fuel Hose Requirement

Required for outboards manufactured for sale, sold, or offered for sale in the
United States.

• The Environmental Protection Agency (EPA) requires that any outboard
manufactured after January 1, 2009, must use low permeation fuel hose
for the primary fuel hose connecting the fuel tank to the outboard.

• Low permeation hose is USCG Type B1‑15 or Type A1‑15, defined as not
exceeding 15 g/m²/24 h with CE 10 fuel at 23 °C as specified in SAE J
1527 ‑ marine fuel hose.

EPA Pressurized Portable Fuel Tank Requirements

The Environmental Protection Agency (EPA) requires portable fuel systems
that are produced after January 1, 2011, for use with outboard engines to
remain fully sealed (pressurized) up to 34.4 kPa (5.0 psi). These tanks may
contain the following:

• An air inlet that opens to allow air to enter as the fuel is drawn out of the
tank.

• An air outlet that opens (vents) to the atmosphere if pressure exceeds

34.4 kPa (5.0 psi).

Fuel Demand Valve (FDV) Requirement

Whenever a pressurized fuel tank is used, a fuel demand valve is required to
be installed in the fuel hose between the fuel tank and primer bulb. The fuel
demand valve prevents pressurized fuel from entering the engine and causing
a fuel system overflow or possible fuel spillage.

26 eng

a

c

b

46453

a

b

c

46290

FUEL AND OIL

The fuel demand valve has a manual release. The manual release can be used
(pushed in) to open (bypass) the valve in case of a fuel blockage in the valve.

a - Fuel demand valve ‑ installed in the

fuel hose between the fuel tank and

primer bulb

b - Manual release
c - Vent/water drain holes

Mercury Marine's Pressurized Portable Fuel Tank

Mercury Marine has created a new portable pressurized fuel tank that meets
the preceding EPA requirements. These fuel tanks are available as an
accessory or are provided with certain portable outboard models.

SPECIAL FEATURES OF THE PORTABLE FUEL TANK

• The fuel tank has a two‑way valve which allows air to enter the tank as
the fuel is drawn to the engine, and also opens to vent to the atmosphere
if internal pressure in the tank exceeds 34.4 kPa (5.0 psi). A hissing noise
may be heard as the tank vents to the atmosphere. This is normal.

• The fuel tank includes a fuel demand valve that prevents pressurized fuel
from entering the engine and causing a fuel system overflow or possible
fuel spillage.

• When installing the fuel tank cap, turn the cap to the right until you hear a
click. This signals that the fuel cap is fully seated. A built‑in device
prevents overtightening.

• The fuel tank has a manual vent screw which should be closed for
transportation and open for operation and cap removal.

Since sealed fuel tanks are not vented, they will expand and contract as the
fuel expands and contracts during heating and cooling cycles of the outside air.
This is normal.

REMOVING THE FUEL CAP

a - Fuel cap
b - Manual vent screw
c - Tab lock

IMPORTANT: Contents may be under pressure. Rotate the fuel cap 1/4 turn to
relieve pressure before opening.

eng 27

FUEL AND OIL

1. Open the manual vent screw on top of the fuel cap.

2. Turn the fuel cap until it contacts the tab lock.

3. Press down on the tab lock. Rotate the fuel cap 1/4 turn to relieve the
pressure.

4. Press down on the tab lock again and remove the cap.

DIRECTIONS FOR USING THE PRESSURIZED PORTABLE FUEL TANK

1. When installing the fuel tank cap, turn the cap to the right until you hear a
click. This signals that the fuel cap is fully seated. A built‑in device
prevents overtightening.

2. Open the manual vent screw on top of the cap for operation and cap
removal. Close the manual vent screw for transportation.

3. For fuel hoses that have quick disconnects, disconnect the fuel line from
the engine or fuel tank when not in use.

4.

Follow Filling Fuel Tank instructions for fueling.

Filling Fuel Tank

WARNING

!

Avoid serious injury or death from a gasoline fire or explosion. Use caution
when filling fuel tanks. Always stop the engine and do not smoke or allow
open flames or sparks in the area while filling fuel tanks.

Fill the fuel tanks outdoors away from heat, sparks, and open flames.
Remove the portable fuel tanks from the boat to fill them.
Always stop the engine before filling the tanks.
Do not completely fill the fuel tanks. Leave approximately 10% of the tank

volume unfilled. Fuel will expand in volume as its temperature rises and can
leak under pressure if the tank is completely filled.

PORTABLE FUEL TANK PLACEMENT IN THE BOAT

Place the fuel tank in the boat so the vent is higher than the fuel level under
normal boat operating conditions.

Engine Oil Recommendations

Mercury or Quicksilver NMMA FC‑W certified SAE 10W‑30 4‑Stroke Marine
Engine Oil is recommended for general, all‑temperature use. If NMMA certified
synthetic blend oil is preferred, use Mercury or Quicksilver SAE 25W‑40
Synthetic Blend Marine 4‑Stroke Engine Oil. If the recommended Mercury or
Quicksilver NMMA FC‑W certified outboard oils are not available, a major
FC‑W certified 4‑stroke outboard oil may be used.

28 eng

+20

+40

+60

+80

F° C°

0

+100

–7

+4

+16

+27

–18

+38

a

b

26795

FUEL AND OIL

IMPORTANT: The use of nondetergent oils, multi‑viscosity oils (other than
Mercury or Quicksilver NMMA FC‑W certified oil or a major brand NMMA FC‑W
certified oil), synthetic oils, low quality or oils that contain solid additives are not
recommended.

Recommended SAE viscosity for
engine oil

a - Mercury or Quicksilver SAE

25W‑40 Synthetic Blend Marine
4‑Stroke Engine Oil may be used
at temperatures above 4 °C
(40 °F)

b - Mercury or Quicksilver SAE

10W‑30 4‑Stroke Marine Engine
Oil is recommended for use in all
temperatures

Checking Engine Oil

IMPORTANT: Do not overfill. Be sure that the outboard is upright (not tilted)
when checking oil.

1. Turn the engine off. Have the outboard in a level operating position.

2. Remove the dipstick. Wipe the dipstick with a clean rag or towel and push

3. Pull the dipstick out again and observe the oil level. If oil level is low,

IMPORTANT: Inspect oil for signs of contamination. Oil contaminated with
water will have a milky color to it; oil contaminated with fuel will have a strong
fuel smell. If contaminated oil is noticed, have the engine checked by your
dealer.

eng 29

Remove the top cowl.

it back in all the way.

remove the oil filler cap and fill to (but not over) the full mark with the
recommended oil.

FUEL AND OIL

4. Install the oil filler cap and tighten securely.

b

a

4914

a - Dipstick
b - Oil filler cap

30 eng

57622

28535

FEATURES AND CONTROLS

Tiller Handle Features

IMPORTANT: Avoid engine flooding ‑ Do not rotate the throttle grip while
engine is not running. Doing so will inject fuel into the engine and cause a
possible hard starting flooded condition.

• A decal on the tiller handle is a quick reference guide for starting a cold or
hot engine.

• Tiller handle ‑ Handle can be tilted 180° for convenient handling during
transportation and storage.

eng 31

28536

b

a

57672

FEATURES AND CONTROLS

• Tiller lock release lever ‑ Push the lever to move tiller handle from one
position to another.

a - Tiller lock release lever

a

3274

• Tiller handle lock cap ‑ Remove the lock cap on top of the tiller handle to
lock in the up position. Push the tiller lock release lever to release the
handle from the locked up position.

a - Lock cap
b - Locking mechanism

• Starter rope ‑ Pulling the starter rope cranks the engine over for starting.

32 eng

19791

57673

a

b

28542

FEATURES AND CONTROLS

•

Lanyard stop switch ‑ Refer to General Information ‑ Lanyard Stop
Switch.

• Engine stop switch ‑ Push in to stop the engine.

• Power tilt switch ‑ Push to tilt engine up/down.

4639

• Throttle grip friction knob ‑ Turn the friction knob to set and maintain the
throttle at desired speed. Turn the knob clockwise to tighten friction or turn
the knob counterclockwise to loosen friction.

a - Loosen friction (counterclockwise)
b - Tighten friction (clockwise)

eng 33

28550

57675

b

a

57674

FEATURES AND CONTROLS

• Throttle only button ‑ Pressing the button in while the outboard is in
neutral disables the gear shift control of the tiller handle.

• Throttle grip ‑ Controls the engine speed and shifting.

a - Reverse gear throttle
b - Forward gear throttle

• Choke ‑ Pull out when starting a cold engine.

34 eng

57676

28532

a

b

39175

FEATURES AND CONTROLS

• Low oil pressure warning light ‑ Warns the operator the engine has low oil
pressure. When the low oil pressure light is on or is blinking, the engine
will run rough and will not exceed 3000 RPM.

• Electric start button (electric start models) ‑ Press the button to start the
engine.

WARNING

!

Insufficient friction adjustment can cause serious injury or death due to loss
of boat control. When setting the friction adjustment, maintain sufficient
steering friction to prevent the outboard from steering into a full turn if the
tiller handle or steering wheel is released.

• Steering friction adjustment ‑ Adjust this lever to achieve the desired
steering friction (drag) on the tiller handle. Move the lever to the left to
tighten, or move the lever to the right to loosen.

a - Tighten
b - Loosen

eng 35

28564

28551

FEATURES AND CONTROLS

• Tilt lock knob ‑ Locks the engine in the full tilt position.

• Trim position knob ‑ Presets the trim position.

• Kicker strap (power tilt models) ‑ Prevents the engine from turning while
tilted up.

4676

36 eng

aa

a

b

c

c

c

58240

d

FEATURES AND CONTROLS

Remote Control Features

Your boat may be equipped with one of the Mercury Precision or Quicksilver
remote controls shown. If not, consult your dealer for a description of the
functions and operations of the remote control.

a - Tilt switch
b - Ignition key switch—OFF, ON, START
c - Throttle only button
d - Lanyard stop switch

•

Tilt switch ‑ Used to trim the drive during operation or raise the drive for
trailering, launching, beaching, or shallow water operation.

•

Throttle only button ‑ The throttle only button allows throttle
advancement without shifting the engine. The throttle only button
disengages the shifting mechanism from the control handle. The throttle
only button can be pressed and held in only when the remote control
handle is in the neutral position. While holding the throttle only button in,
move the throttle handle forward to assist in starting the engine.

•

Lanyard stop switch (if equipped) ‑ The purpose of a lanyard stop
switch is to shut down the engine when the operator moves far enough
away from the operator's position to activate the switch. A lanyard stop
switch can be installed as an accessory, generally on the dashboard or
side adjacent to the operator's position.

•

Control handle ‑ Operation of the shift and throttle is controlled by the
movement of the control handle. Push the control handle forward from
neutral with a quick firm motion to the first detent for forward gear.
Continue pushing forward to increase speed. Pull the control handle back
from neutral with a quick firm motion to the first detent for reverse gear.
Continue pulling back to increase speed.

IMPORTANT: Forcing the shift mechanism while the engine is not operating
can result in product damage.

eng 37

N

RF

58239

FEATURES AND CONTROLS

GEAR SHIFTING

IMPORTANT: Observe the following:

•

Never shift the outboard into or out of gear unless the engine speed
is at idle. Shifting at higher than engine idle speed could cause
damage to the gearcase.

•

Do not shift the outboard into reverse when the forward motion of
the boat is greater than a no wake speed. Shifting into reverse at
higher boat speeds could cause the engine to stall, and in some
situations, this could cause water to be drawn into the cylinders,
resulting in severe engine damage.

•

Do not shift the outboard into reverse when the engine is not
running. Damage to the shift linkage could occur.

• Your power package has three gear shift positions to provide operation:
forward (F), neutral (N), and reverse (R).

• When shifting, always stop at the neutral position and allow the engine
speed to return to idle.

• Always shift into gear with a quick motion.

• After shifting into gear, advance the lever further to increase speed.

Warning System

The warning system on this engine does not have a warning horn. Instead,
there is an oil pressure light located on the front of the engine. If oil pressure
drops below 25 kPa (3.6 psi) the oil pressure light will illuminate, the Engine
Guardian System will be activated, and engine RPM will be limited to 3000.

The Engine Guardian System will also limit RPM of the engine in the event of
an overspeed condition due to cavitation, no load on propeller, and/or under
propped.

38 eng

60800

FEATURES AND CONTROLS

Power Tilt (if equipped)

This outboard has a tilt control called power tilt. This enables the operator to
easily adjust the position of the outboard by pressing the tilt switch. With the
engine turned off, the outboard can be tilted out of the water. At low idle speed,
the outboard can also be tilted up to permit shallow water operation.

eng 39

60801

FEATURES AND CONTROLS

TILTING OPERATION

To tilt the outboard, shut off the engine and press the tilt switch to the up
position. The outboard will tilt up until the switch is released or it reaches its
maximum tilt position. Tiller handle models have a kicker strap located on each
side of the outboard, preventing the outboard from turning when tilted up.

4676

1. Engage the tilt support lever by rotating lever down.

2. Lower the outboard to rest on the tilt support lever.

40 eng

FEATURES AND CONTROLS

3. Disengage the tilt support lever by raising the outboard off the support
lever and lifting the knob. Lower the outboard.

a - Tilt support lever
b - Knob

a

b

4650

Setting The Transom Angle Of Your Outboard

The vertical transom angle of your outboard is adjusted by changing the
position of the preset tilt knob in one of the three adjustment holes provided.
Proper adjustment allows the boat to achieve optimum performance, stability,
and minimize steering effort.

NOTE: Refer to the following lists when adjusting the transom angle of your
outboard.

The preset tilt knob should be adjusted so the outboard is positioned to run
perpendicular to the water when the boat is running at full speed. This allows
the boat to be driven parallel to the water.

eng 41

a

b

c

28533

FEATURES AND CONTROLS

Arrange passengers and load in the boat so the weight is distributed evenly.

a - Too much angle (stern down ‑ bow up)
b - Not enough angle (stern up ‑ bow down)
c - Angle adjusted properly (bow slightly up)

Consider the following lists carefully when adjusting the operating angle of your
outboard.

Adjusting the outboard close to the boat transom can:

• Lower the bow.

• Result in quicker planing off, especially with a heavy load or a stern heavy
boat.

• Generally improve the ride in choppy water.

• Increase steering torque or pull to the right.

• In excess, can lower the bow of some boats to a point where they begin to
plow with their bow in the water while on plane. This can result in an
unexpected turn in either direction (called bow steering or oversteering) if
any turn is attempted or if a significant wave is encountered.

Adjusting the outboard away from the boat transom can:

• Lift the bow out of the water.

• Generally increase top speed.

• Increase clearance over submerged objects or a shallow bottom.

• Increase steering torque or pull to the left at a normal installation height.

42 eng

39227

b

a

FEATURES AND CONTROLS

• In excess can cause boat porpoising (bouncing) or propeller ventilation.

Adjusting Transom Angle

1. Stop the engine. Shift the outboard into forward. Raise the engine to one
of the tilt release positions. Change the preset knob position and lower the
outboard to the preset transom angle position.

2. Repeat step number one if the transom angle needs further adjustment.

a - Transom angle settings
b - Tilt release position

Shallow Water Operation

There are three (3) shallow water drive positions that enable the outboard to be
tilted up to prevent hitting the bottom.

1. Stop the engine. Shift the outboard into neutral. Tilt the outboard up to
one of the shallow water drive positions. Ensure the water intake is
submerged.

eng 43

b

a

c

28592

c

b

a

28587

FEATURES AND CONTROLS

2. To release the shallow water drive, stop the engine and tilt the outboard
up to one of the tilt release position. Gently lower the outboard to the
preset transom angle.

a - Shallow water drive positions
b - Tilt release positions
c - Water Intake

Tilting Outboard

1. Stop the engine. Shift the outboard into the forward gear position.

2. Take hold of the top cowl grip and raise the outboard to the full up
position.

3. Pull out on the tilt lock knob and move it to the lock position. The outboard
cannot be lowered while the tilt lock knob is in the lock position.

4. To lower the engine, move the tilt lock knob to the unlock the position.

5. Raise the outboard to the tilt release position and gently lower the
outboard to the preset trim position.

a - Tilt lock knob in lock

position

b - Tilt lock knob in unlock

position

c - Tilt range indicator

44 eng

26816

FEATURES AND CONTROLS

Trim Tab Adjustment

Propeller steering torque will cause your boat to pull in one direction. This
steering torque is a normal thing that results from your outboard not being
trimmed so the propeller shaft is parallel to the water surface. The trim tab can
help compensate for this steering torque in many cases and can be adjusted
within limits to reduce any unequal steering effort.

NOTE: Trim tab adjustment will have little effect reducing steering torque if the
outboard is installed with the anti‑ventilation plate approximately 50 mm
(2 inches) or more above the boat bottom.

Operate your boat at normal cruising speed, trimmed to the desired position.
Turn your boat left and right and note the direction the boat turns more easily.

If adjustment is necessary, loosen trim tab bolt and make small adjustments at
a time. If the boat turns more easily to the left, move the trailing edge of trim tab
to the left. If the boat turns more easily to the right, move the trailing edge of
trim tab to the right. Tighten bolt and retest.

eng 45

OPERATION

Prestarting Check List

• Operator knows safe navigation, boating, and operating procedures.

• An approved personal flotation device of suitable size for each person
aboard and readily accessible (it is the law).

• A ring type life buoy or buoyant cushion designed to be thrown to a
person in the water.

• Know your boats' maximum load capacity. Look at the boat capacity plate.

• Fuel supply OK.

• Arrange passengers and load in the boat so the weight is distributed
evenly and everyone is seated in a proper seat.

• Tell someone where you are going and when you expect to return.

• It is illegal to operate a boat while under the influence of alcohol or drugs.

• Know the waters and area you will be boating; tides, currents, sand bars,
rocks, and other hazards.

•

Make inspection checks listed in Maintenance ‑ Inspection and

Maintenance Schedule.

Operating in Freezing Temperatures

When using your outboard or having your outboard moored in freezing or near
freezing temperatures, keep the outboard tilted down at all times so the
gearcase is submerged. This prevents the trapped water in the gearcase from
freezing and causing possible damage to the water pump and other
components.

If there is a chance of ice forming on the water, the outboard should be
removed and drained completely of water. If ice should form at the water level
inside the outboard driveshaft housing, it will block water flow to the engine
causing possible damage.

Operating in Saltwater or Polluted Water

We recommend that you flush the internal water passages of your outboard
with fresh water after each use in salt or polluted water. This will prevent a
buildup of deposits from clogging the water passages. Refer to Maintenance ‑
Flushing the Cooling System.

If you keep your boat moored in the water, always tilt the outboard so the
gearcase is completely out of water (except in freezing temperatures) when not
in use.

Wash the outboard exterior and flush out the exhaust outlet of the propeller and
gearcase with fresh water after each use. Each month, spray Mercury Precision
or Quicksilver Corrosion Guard on external metal surfaces. Do not spray on
corrosion control anodes as this will reduce the effectiveness of the anodes.

46 eng

27231

27233

26837

OPERATION

Operating Outboard as an Auxiliary Engine

If the outboard is used as an auxiliary engine, stop the engine and tilt the
outboard out of the water when using the main power source.

IMPORTANT: The outboard must be restrained from bouncing while operating
the boat using the main power source. Bouncing can damage the outboard and
boat transom.

Prestarting Instructions

1. Connect the remote fuel line to the outboard. Make sure connector is
snapped into place.

2. Check the engine oil level.

NOTICE

Without sufficient cooling water, the engine, the water pump, and other
components will overheat and suffer damage. Provide a sufficient supply of
water to the water inlets during operation.

3. Make sure the cooling water intake is submerged.

eng 47

27348

a

b

c

46290

OPERATION

Engine Break‑in Procedure

IMPORTANT: Failure to follow the engine break‑in procedures can result in
poor performance throughout the life of the engine and can cause engine
damage. Always follow break‑in procedures.

1. For the first hour of operation, run the engine at varied throttle settings up
to 2000 RPM or at approximately half throttle.

2. For the second hour of operation, run the engine at varied throttle settings
up to 3000 RPM or at three‑quarter throttle, and at full throttle for
approximately one minute every ten minutes.

3. For the next eight hours of operation, avoid continuous operation at full
throttle for more than five minutes at a time.

Starting the Engine ‑ Tiller Handle Models

Before starting, read the Prestarting Check List, special operating
instructions, and Engine Break‑in Procedure.

1. Open the fuel tank vent on the manual venting type tanks.

a - Fuel cap
b - Manual vent screw
c - Tab lock

2. Position the fuel line primer bulb so the arrow on the side of the bulb is
pointing up. Squeeze the fuel line primer bulb several times until it feels
firm.

IMPORTANT: To prevent engine flooding, do not squeeze the primer bulb
after the engine has warmed up.

48 eng

19791

57677

a

b

c

57690

OPERATION

3.

Set the lanyard stop switch to RUN position. Refer to General
Information—Lanyard Stop Switch.

4. Set the tiller handle gear shift to the neutral start position.

5.

Cold engine ‑

• Pull the choke knob out two detent positions for starting a cold engine.
The choke is closed in this position.

• After the engine is running, push the choke knob in one detent. The
choke is partially open in this position.

• After the engine starts to warm up, push the choke knob in. The choke
is open in this position.

a - Choke is open
b - Choke is partially open
c - Choke is closed

IMPORTANT: Outboards with battery charging capabilities must not be
operated with battery cables disconnected from the battery. Damage to the
charging system may result.

eng 49

28586

28550

27240

OPERATION

6.

Manual starting models ‑ Pull the starter rope slowly until you feel the
starter engage, then pull rapidly to crank the engine. Allow rope to return
slowly. Repeat until the engine starts. After the engine has started, push
in the choke knob.

7.

Electric start tiller handle models ‑ Push the starter button and crank
the engine. Release the button when the engine starts. Do not operate
the starter motor continuously for longer than ten seconds at a time. If the
engine fails to start, wait 30 seconds and try again.

8.

Flooded engine ‑ If the engine will not start, push in the throttle only
button and advance the throttle grip to fast throttle speed. Push the choke
knob all the way in and try to start the engine. After the engine has
started, immediately reduce throttle speed to idle.

9. Check for a steady stream of water flowing out of the water pump
indicator hole.

50 eng

27348

a

b

c

46290

OPERATION

IMPORTANT: If no water is coming out of the water pump indicator hole, stop
the engine and check the cooling water intake for obstruction. No obstruction
may indicate a water pump failure or blockage in the cooling system. These
conditions will cause the engine to overheat. Have the outboard checked by
your dealer. Operating the engine while overheated will cause serious engine
damage.

WARMING UP ENGINE

Before beginning operation, allow the engine to warm up at idling speed for
three minutes.

Starting the Engine ‑ Remote Control Models

Before starting, read the Prestarting Check List, special operating
instructions, and Engine Break‑in Procedure.

1. Open the fuel tank vent on the manual venting type tanks.

a - Fuel cap
b - Manual vent screw
c - Tab lock

2. Position the fuel line primer bulb so the arrow on the side of the bulb is
pointing up. Squeeze the fuel line primer bulb several times until it feels
firm.

IMPORTANT: To prevent engine flooding, do not squeeze the primer bulb
after the engine has warmed up.

eng 51

19791

N

26838

OPERATION

3.

Set the lanyard stop switch to RUN position. Refer to General
Information—Lanyard Stop Switch.

4. Ensure the remote control handle is in the neutral position.

IMPORTANT: Avoid engine flooding ‑ Do not advance the throttle when the
engine is not running. This will inject fuel into the engine and may cause a
hard starting flooded condition.

IMPORTANT: Outboards with battery charging capabilities must not be
operated with the battery cables disconnected from the battery. Damage to the
charging system may result.

5. Do not use the throttle only feature on the remote control for initial
starting. After starting the engine, you can slowly advance the throttle only
lever, or press the throttle only button and advance the control handle to
increase idle speed until the engine is warmed up. Keep the engine speed
below 2000 RPM.

NOTE: Starting flooded engine ‑ lift the neutral fast idle lever to full up and
continue to crank the engine for starting.

52 eng

19804

27240

OPERATION

6. Turn the ignition key to the START position. If the engine is cold, push the
key in to choke the engine while cranking. If the engine fails to start in ten
seconds, wait 30 seconds and try again. If the engine begins to stall, push
the key in (choke) until the engine is running smoothly.

7. Check for a steady stream of water flowing out of the water pump
indicator hole.

IMPORTANT: If no water is coming out of the water pump indicator hole, stop
the engine and check the cooling water intake for obstruction. No obstruction
may indicate a water pump failure or blockage in the cooling system. These
conditions will cause the engine to overheat. Have the outboard checked by
your dealer. Operating the engine while overheated will cause engine damage.

WARMING UP ENGINE

Before beginning operation, allow the engine to warm up at idling speed for
three minutes.

Starting a Hot Engine

TILLER HANDLE MODELS

1. Pull the choke knob out one detent. The choke is partially open.

2. Crank the engine with the recoil rope or with the electric start button.

3. Push the choke knob in after the engine has started.

REMOTE CONTROL MODELS

1. Crank the engine over while pushing the key in to engage the choke
solenoid.

2. After the engine has started, release the key.

eng 53

N

R

27237

b

a

c

57740

OPERATION

Gear Shifting

IMPORTANT: Observe the following:

•

Never shift the outboard into or out of gear unless the engine speed
is at idle. Shifting at higher than engine idle speed could cause
damage to the gearcase.

•

Do not shift the outboard into reverse when the forward motion of
the boat is greater than a no wake speed. Shifting into reverse at
higher boat speeds could cause the engine to stall, and in some
situations, this could cause water to be drawn into the cylinders,
resulting in severe engine damage.

•

Do not shift the outboard into reverse when the engine is not
running. Damage to the shift linkage could occur.

• Your outboard has three gear shift positions to provide operation: forward
(F), neutral (N), and reverse (R).

•

Tiller handle models ‑ Reduce the engine speed to idle before shifting.

a - (R) reverse
b - (N) neutral
c - (F) forward

•

Remote control models ‑ When shifting, always stop at the neutral
position and allow the engine speed to return to idle.

• Always shift the outboard into gear with a quick motion.

• After shifting the outboard into gear, advance the remote control lever or
rotate the throttle grip (tiller handle) to increase speed.

54 eng

26843

OFF

ON

START

26776

OPERATION

Stopping the Engine

1.

Remote control models ‑ Reduce the engine speed and shift the
outboard to neutral position. Turn the ignition key to "OFF" position.

2.

Tiller handle models ‑ Reduce the engine speed and shift the outboard
to neutral position. Push in the engine stop button or turn the ignition key
to "OFF" position.

Emergency Starting

If the starter system fails, use the spare starter rope (provided) and follow this
procedure.

WARNING

!

The neutral‑speed‑protection device is inoperative when starting the engine
with the emergency starter rope. Set the engine speed at idle and the gear
shift in neutral to prevent the outboard from starting in gear.

1. Shift the outboard into neutral.

2. Ensure the lanyard stop switch is in the run position.

3. Remove the top cowl.

eng 55

a

b

a

a

c

28614

OPERATION

4. Remove the three screws holding the flywheel cover on.

a - Flywheel cover screws (3)
b - Recoil neutral interlock
c - Fuse holder

5. Remove the flywheel cover.

6. Remote control models ‑ Ensure the key switch is in the "ON" position.

WARNING

!

High voltage is present any time the key is turned on, especially when
starting or operating the engine. Do not touch ignition components or metal
test probes and stay clear of spark plug leads when performing live tests.

WARNING

!

The exposed moving flywheel can cause serious injury. Keep your hands,
hair, clothing, tools, and other objects away from engine when starting or
running the engine. Do not attempt to reinstall the flywheel cover or top
cowl when engine is running.

7. Refer to the appropriate starting procedure (cold or hot).

56 eng

28616

OPERATION

8. Place the starter rope knot into the flywheel notch and wind the rope
clockwise around the flywheel.

9. Pull the starter rope quickly.

eng 57

MAINTENANCE

Cleaning Care Recommendations

OUTBOARD CARE

To keep your outboard in the best operating condition, it is important that your
outboard receive the periodic inspections and maintenance listed in the
Inspection and Maintenance Schedule. We urge you to keep it maintained
properly to ensure the safety of you and your passengers, and retain its
dependability.

Record maintenance performed in the Maintenance Log at the back of this
book. Save all maintenance work orders and receipts.

Selecting Replacement Parts For Your Outboard

We recommend using original Mercury Precision or Quicksilver replacement
parts and Genuine Lubricants.

DO NOT USE CAUSTIC CLEANING CHEMICALS

IMPORTANT: Do not use caustic cleaning chemicals on the outboard power
package. Some cleaning products contain strong caustic agents such as hull
cleaners with hydrochloric acid. These cleaners can degrade some of the
components they come in contact with including critical steering fasteners.

Damage to steering fasteners may not be obvious during visual inspection and
this damage may lead to catastrophic failure. Some caustic cleaning chemicals
may cause or accelerate corrosion. Exercise caution when using cleaning
chemicals around the engine and follow the recommendations on the
packaging of the cleaning product.

CLEANING GAUGES

IMPORTANT: Never use high‑pressure water to clean gauges.
Routine cleaning of the gauges is recommended to prevent a buildup of salt

and other environmental debris. Crystalized salt can scratch the gauge display
lens when using a dry or damp cloth. Ensure that the cloth has a sufficient
amount of fresh water to dissolve and remove salt or mineral deposits. Do not
apply aggressive pressure on the display lens while cleaning.

When water marks cannot be removed with a damp cloth, mix a 50/50 solution
of warm water and isopropyl alcohol to clean the display lens. Do not use
acetone, mineral spirits, turpentine type solvents, or ammonia based cleaning
products. The use of strong solvents or detergents may damage the coating,
the plastics, or the rubber keys on the gauges. If the gauge has a sun cover
available, it is recommended that the cover be installed when the unit is not in
use to prevent UV damage to the plastic bezels and rubber keys.

CLEANING REMOTE CONTROLS

IMPORTANT: Never use high‑pressure water to clean remote controls.

58 eng

MAINTENANCE

Routine cleaning of the remote control external surfaces is recommended to
prevent a buildup of salt and other environmental debris. Use a cloth towel
which has a sufficient amount of fresh water to dissolve and remove salt or
mineral deposits.

When water marks cannot be removed with a damp cloth, mix a 50/50 solution
of warm water and isopropyl alcohol to clean the remote control. Do not use
acetone, mineral spirits, turpentine type solvents, or ammonia based cleaning
products. The use of strong solvents or detergents may damage the coating,
the plastics, or the rubber components on the remote control.

CLEANING CARE FOR TOP AND BOTTOM COWLS

IMPORTANT: Dry wiping (wiping the plastic surface when it is dry) will result in
minor surface scratches. Always wet the surface before cleaning. Do not use
detergents containing hydrochloric acid. Follow the cleaning and waxing
procedure.

Cleaning and Waxing Procedure

1. Before washing, rinse the cowls with clean water to remove dirt and dust
that may scratch the surface.

2. Wash the cowls with clean water and a mild nonabrasive soap. Use a soft
clean cloth when washing.

3. Dry thoroughly with a soft clean cloth.

4. Wax the surface using a nonabrasive automotive polish (polish designed
for clear coat finishes). Remove the applied wax by hand using a clean
soft cloth.

5. To remove minor scratches, use Mercury Marine Cowl Finishing
Compound (92‑859026K 1).

CLEANING CARE FOR THE POWERHEAD (SALTWATER USE)

If the outboard is operated in saltwater, remove the top cowl and flywheel
cover. Inspect the powerhead and powerhead components for salt buildup.
Wash off any salt buildup from the powerhead and powerhead components
with fresh water. Keep water spray out of the air filter/intake and alternator.
After washing, allow the powerhead and components to dry. Apply Quicksilver
or Mercury Precision Lubricants Corrosion Guard spray on the external metal
surfaces of the powerhead and powerhead components. Do not allow the
Corrosion Guard spray to come in contact with the alternator drive belt or belt
pulleys.

IMPORTANT: Do not allow lubricant or Corrosion Guard spray to come in
contact with the alternator drive belt or the belt pulleys. The alternator drive belt
could slip and be damaged if it becomes coated with any lubricant or Corrosion
Guard spray.

eng 59

2008

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

THIS ENGINE CONFORMS TO 2010 CALIFORNIA AND U.S. EPA EMISSION
REGULATIONS FOR SPARK IGNITION MARINE ENGINES. REFER TO OWNER’S
MANUAL FOR REQUIRED MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
PLEASE PERFORM THE ENGINE MAINTENANCE CORRECTLY.

FAMILY :

MERCURY MARINE

EMISSION CONTROL INFORMATION

a

DISPLACEMENT :
FEL : HC+NOx=

LOW-PERM/HIGH-PERM :

TIMING :

IDLE SPEED (IN GEAR) :

MAXIMUM POWER :

HP :

2008

b

c

d

e

f

g

h

43058

CO=

MAINTENANCE

Tube Ref

No.

120

Description Where Used Part No.

Corrosion Guard

External metal surfaces of the powerhead

and powerhead components.

92-802878 55

EPA Emission Regulations

All new outboards manufactured by Mercury Marine are certified to the United
States Environmental Protection Agency, as conforming to the requirements of
the regulations for the control of air pollution from new outboard motors. This
certification is contingent on certain adjustments set to factory standards. For
this reason, the factory procedure for servicing the product must be strictly
followed and, wherever practicable, returned to the original intent of the design.

Maintenance, replacement, or repair of the emission control devices and
systems may be performed by any marine spark ignition (SI) engine
repair establishment or individual.

EMISSION CERTIFICATION LABEL

An emission certification label, showing emission levels and engine
specifications directly related to emissions, is placed on the engine at time of
manufacture.

a - Piston displacement
b - Maximum emission output for the engine family
c - Percent of fuel line permeation
d - Timing specification
e - US EPA engine family name
f - Horsepower rating
g - Engine power ‑ kilowatts
h - Idle speed (in gear)

OWNER RESPONSIBILITY

The owner/operator is required to have routine engine maintenance performed
to maintain emission levels within prescribed certification standards.

60 eng

MAINTENANCE

The owner/operator is not to modify the engine in any manner that would alter
the horsepower or allow emission levels to exceed their predetermined factory
specifications.

Inspection and Maintenance Schedule

DAILY CHECKS

• Check the engine oil level

• Check the lanyard stop switch

• Inspect the fuel system for leaks

• Inspect the engine tightness on the transom

• Check the steering system for binding

• Check the propeller for damage

• Inspect the hydraulic steering fittings and hoses for leaks or signs of
damage, if equipped

• Check the hydraulic steering fluid level, if equipped

AFTER EACH USE

• Wash the power package exterior with fresh water

• Flush the outboard cooling system, saltwater or brackish water only

ANNUALLY OR 100 HOURS

• Grease the engine, if applicable

• Change the engine oil and filter, if equipped

• Inspect the thermostat, saltwater or brackish water only

• Add Quickleen to the fuel tank, once per year, per engine

• Apply antiseize to the spark plug threads

• Replace the gear lubricant

• Inspect the corrosion control anodes

• Lubricate the propeller shaft splines

• Replace all filters on the suction side of the fuel system—dealer item

• Lubricate the driveshaft splines—dealer item

• Check the tightness on all the fasteners—dealer item

• Check the torque of the outboard mounting hardware—dealer item

• Check the battery condition and tightness of the battery cable connection,
if equipped—dealer item

THREE YEARS OR 300 HOURS

• Replace the spark plugs

• Replace the water pump impeller—dealer item

• Inspect the carbon fiber reeds, if equipped—dealer item

• Inspect the wire harness connectors—dealer item

eng 61

27256

9192

MAINTENANCE

• Check the remote control cable adjustment, if equipped—dealer item

• Replace the high‑pressure fuel filter, if equipped—dealer item

• Replace the accessory drive belt, if equipped—dealer item

• Check the power trim fluid level, if equipped—dealer item

• Inspect the engine motor mounts—dealer item

Flushing the Cooling System

Flush the internal water passages of the outboard with fresh water after each
use in salt, polluted, or muddy water. This will help prevent a buildup of
deposits from clogging the internal water passages.

Use a Mercury Precision or Quicksilver accessory (or equivalent) flushing
attachment.

IMPORTANT: The engine must be run during flushing in order to open the
thermostat and circulate water through the water passages.

WARNING

!

Rotating propellers can cause serious injury or death. Never operate the boat
out of the water with a propeller installed. Before installing or removing a
propeller, place the drive unit in neutral and engage the lanyard stop switch
to prevent the engine from starting. Place a block of wood between the
propeller blade and the anti‑ventilation plate.

1.

Remove the propeller. Refer to Propeller Replacement. Install the
flushing attachment so the rubber cups fit tightly over the cooling water
intake.

Flushing Device

Attaches to the water intakes; provides
a fresh water connection when flushing
the cooling system or operating the
engine.

91‑44357Q 2

62 eng

27259

27260

MAINTENANCE

2. Attach a water hose to the flushing attachment. Turn on the water and
adjust the flow so water is leaking around the rubber cups to ensure the
engine receives an adequate supply of cooling water.

3. Start the engine and run it at idle speed in neutral shift position.

IMPORTANT: Do not run the engine above idle when flushing.

4. Adjust the water flow (if necessary) so excess water continues leaking out
from around the rubber cups to ensure the engine is receiving an
adequate supply of cooling water.

5. Check for a steady stream of water flowing out of the water pump
indicator hole. Continue flushing the outboard for 3 to 5 minutes, carefully
monitoring water supply at all times.

6. Stop the engine, turn off the water, and remove the flushing attachment.
Install the propeller.

eng 63

60802

MAINTENANCE

Top Cowl Removal And Installation

REMOVAL

1. Pull out the front cowl latch.

2. Lift front of cowl to clear front latch and push toward the rear to clear rear
hook.

3. Lift top cowl to remove.

INSTALLATION

1. Lower the top cowl into position over the engine.

2. Move the cowl toward the rear to align rear hook. After rear hook has
engaged, move cowl toward front and push down front of cowl.

3. Push in the latch to secure the top cowl.

Battery Inspection

The battery should be inspected at periodic intervals to ensure proper engine
starting capability.

IMPORTANT: Read the safety and maintenance instructions which accompany
your battery.

1. Turn off the engine before servicing the battery.

2. Ensure the battery is secure against movement.

3. Battery cable terminals should be clean, tight, and correctly installed.
Positive to positive and negative to negative.

4. Ensure the battery is equipped with a nonconductive shield to prevent
accidental shorting of battery terminals.

Exterior Care

Your outboard is protected with a durable baked enamel finish. Clean and wax
often using marine cleaners and waxes.

64 eng

58658

MAINTENANCE

Fuel System

WARNING

!

Fuel is flammable and explosive. Ensure that the key switch is off and the
lanyard is positioned so that the engine cannot start. Do not smoke or allow
sources of spark or open flame in the area while servicing. Keep the work
area well ventilated and avoid prolonged exposure to vapors. Always check
for leaks before attempting to start the engine, and wipe up any spilled fuel
immediately.

Before servicing any part of the fuel system, stop the engine and disconnect
the battery. Drain the fuel system completely. Use an approved container to
collect and store fuel. Wipe up any spillage immediately. Material used to
contain spillage must be disposed of in an approved receptacle. Any fuel
system service must be performed in a well‑ventilated area. Inspect any
completed service work for sign of fuel leakage.

FUEL LINE INSPECTION

Visually inspect the fuel line and primer bulb for cracks, swelling, leaks,
hardness, or other signs of deterioration or damage. If any of these conditions
are found, the fuel line or primer bulb must be replaced.

FUEL LINE FILTER

Inspect the fuel line filter. If the filter appears to be contaminated, remove and
replace.

IMPORTANT: Inspect for fuel leakage from the filter connections by squeezing
the primer bulb until firm, forcing fuel into the filter.

Steering Link Rod Fasteners

IMPORTANT: The steering link rod that connects the steering cable to the
engine must be fastened using the steering link rod fastening hardware
supplied with engine. Never replace the locknuts (11‑16147‑‑3) with common
nuts (nonlocking) as they will work loose and vibrate off, freeing the link rod to
disengage.

eng 65

a

b

b

c

d

b

f

e

10352

MAINTENANCE

WARNING

!

Improper fasteners or improper installation procedures can result in
loosening or disengagement of the steering link rod. This can cause a
sudden, unexpected loss of boat control, resulting in serious injury or death
due to occupants being thrown within or out of the boat. Always use required
components and follow instructions and torque procedures.

a - Bolt (12‑71970)
b - Flat washer
c - Spacer
d - Nylon insert locknut (11‑16147‑‑3)
e - Steering bracket ‑ Install steering link rod into side hole
f - Nylon insert locknut (11‑16147‑‑3) (tighten until seats, then back off 1/4

turn)

Description Nm lb‑in. lb‑ft
Nylon insert locknut "d" 27 – 20

Nylon insert locknut "f"

Tighten until seats, then back off 1/4

turn

Assemble steering link rod to steering cable with flat washer and nylon insert
locknut. Tighten locknut until it seats, then back nut off 1/4 turn.

Assemble steering link rod to engine with bolt, locknut and spacer and flat
washers. Tighten the locknut to the specified torque.

66 eng

28623

26899

MAINTENANCE

Corrosion Control Anode

Your outboard has a corrosion control anode installed to the gearcase. An
anode helps protect the outboard against galvanic corrosion by sacrificing its
metal to be slowly corroded instead of the outboard metals.

The anode requires periodic inspection especially in saltwater which will
accelerate the erosion. To maintain this corrosion protection, always replace
the anode before it is completely eroded. Never paint or apply a protective
coating on the anode as this will reduce effectiveness of the anode.

Propeller Replacement

WARNING

!

Rotating propellers can cause serious injury or death. Never operate the boat
out of the water with a propeller installed. Before installing or removing a
propeller, place the drive unit in neutral and engage the lanyard stop switch
to prevent the engine from starting. Place a block of wood between the
propeller blade and the anti‑ventilation plate.

1. Remove the spark plug lead to prevent engine from starting.

eng 67

N

26838

57677

27095

MAINTENANCE

2. Move the gear shift lever into neutral (N).

3. Straighten and remove the cotter pin.

4. Place a block of wood between the gearcase and propeller to hold the
propeller and remove the propeller nut.

5. Pull the propeller straight off the shaft. If the propeller is seized to the
shaft and cannot be removed, have the propeller removed by an
authorized dealer.

IMPORTANT: To prevent the propeller hub from corroding and seizing to the
propeller shaft (especially in saltwater), always apply the recommended
lubricant to the entire propeller shaft at the recommended maintenance
intervals and also each time the propeller is removed.

6. Apply Extreme Grease or 2‑4‑C with PTFE to the propeller shaft.

68 eng

a

b

c

d

e

27094

a

b

28618

MAINTENANCE

Tube Ref

No.

95

7. Install the front thrust washer, propeller, rear thrust washer, and propeller
nut onto the shaft.

8. Place a block of wood between the gearcase and propeller to prevent
rotation and tighten the propeller nut. Secure the propeller nut to the shaft
with the cotter pin.

Description Where Used Part No.

Extreme Grease Propeller shaft 8M0071842

2-4-C with PTFE Propeller shaft 92-802859A 1

a - Cotter pin
b - Propeller nut
c - Rear thrust washer
d - Propeller
e - Front thrust washer

Fuse Replacement ‑ Electric Start Models

IMPORTANT: Always carry spare 20 amp fuses.
The electric starting circuit is protected from overload by a 20 amp fuse. If the

fuse is blown, try to locate and correct the cause of the overload. If the cause is
not found, the fuse may blow again.

a - Spare fuse
b - Circuit protecting fuse

eng 69

26899

26946

a

b

28619

MAINTENANCE

Open the fuse holder and look at the silver colored band inside the fuse. If band
is broken, replace the fuse. Replace the fuse with a new fuse with the same
rating.

Identifying a blown fuse

a - Good fuse
b - Blown fuse

Spark Plug Inspection and Replacement

WARNING

!

Damaged spark plug boots may emit sparks that can ignite fuel vapors under
the engine cowl, resulting in serious injury or death from a fire or explosion.
To avoid damaging the spark plug boots, do not use any sharp object or
metal tool to remove the spark plug boots.

1. Remove the spark plug boot. Twist the rubber boot slightly and pull off.

2. Remove the spark plug to inspect. Replace spark plug if electrode is worn
or the insulator is rough, cracked, broken, blistered, or fouled.

70 eng

26947

27578

MAINTENANCE

3. Set the spark plug gap to specification.

Spark Plug
Spark plug gap 0.9 mm (0.035 in.)

4. Before installing spark plug, clean off any dirt on the spark plug seat.
Install plug finger‑tight, and then tighten 1/4 turn or torque to
specifications.

Description
Spark plug 27 – 20

Nm lb‑in. lb‑ft

Timing Belt Inspection

Inspect the timing belt and have it replaced by an authorized dealer if any of the
following conditions are found.

• Cracks in the back of the belt or in the base of the belt teeth.

• Excessive wear at the roots of the cogs.

• Rubber portion swollen by oil.

• Belt surfaces roughened.

• Signs of wear on edges or outer surfaces of belt.

Changing Engine Oil

ENGINE OIL CAPACITY

Engine oil capacity is approximately 800 ml (27 fl oz).

eng 71

22921

28617

MAINTENANCE

OIL CHANGING PROCEDURE

1. Lock the outboard in the full tilt up position.

2. Position the outboard so the drain hole is facing downward.

3. Remove the drain plug and drain the engine oil into an appropriate
container.

IMPORTANT: Do not use a crankcase oil pump when changing the oil or
engine damage may occur.

4. After the initial oil has been drained, temporarily install the drain plug.
Disengage the tilt lock and lower the outboard. Wait a minute to allow the
remaining oil that was trapped in the engine to return to the drain. Return
the outboard to the full tilt position and drain the remaining oil.

5. Lubricate the seal on the drain plug with oil and reinstall.

4537

OIL FILLING

IMPORTANT: Do not overfill. Be sure that the outboard is upright (not tilted)
when checking oil.

1. Remove the oil fill cap and refill with 800 ml (27 fl oz) of oil. Install the oil
fill cap.

2. Idle engine for five minutes and check for leaks. Stop the engine and
check the oil level on the dipstick. Add oil if necessary.

72 eng

60886

a

b

c

MAINTENANCE

Lubrication Points

1. Lubricate the following with 2‑4‑C with PTFE or Extreme Grease.

Tube Ref

No.

95

Description Where Used Part No.

Extreme Grease

2-4-C with PTFE

Swivel bracket, transom clamp screws,

tilt tube, throttle and shift cables,

steering cable grease fitting

Swivel bracket, transom clamp screws,

tilt tube, throttle and shift cables,

steering cable grease fitting

• Swivel bracket ‑ Lubricate fitting.

• Transom clamp screws ‑ Lubricate threads.

• Tilt tube ‑ Lubricate fittings.

8M0071842

92-802859A 1

a - Tilt tube grease fitting
b - Swivel bracket grease fitting
c - Transom clamp screws

eng 73

57719

a

b

27351

a

a

27352

MAINTENANCE

• Lubricate the throttle and shift cable moving components, pivot
locations, and shift detent.

• Steering cable grease fitting (if equipped) ‑ Rotate steering wheel to
fully retract the steering cable end into the outboard tilt tube. Lubricate
through fitting.

a - Steering cable grease fitting
b - Steering cable end

WARNING

!

Incorrect cable lubrication can cause hydraulic lock, leading to serious
injury or death from loss of boat control. Completely retract the end of the
steering cable before applying lubricant.

2. Lubricate the following with lightweight oil.

• Steering link rod pivot points ‑ Lubricate points.

a - Steering link rod pivot points

74 eng

27344

MAINTENANCE

3. Lubricate the following with Extreme Grease or 2‑4‑C with PTFE.

Tube Ref

No.

95

•

Description Where Used Part No.

Extreme Grease Propeller shaft 8M0071842

2-4-C with PTFE Propeller shaft 92-802859A 1

Propeller shaft ‑ Refer to Propeller Replacement for removal and
installation of the propeller. Apply lubricant to the entire propeller shaft
to prevent the propeller hub from corroding to the shaft.

Gearcase Lubrication

When adding or changing gearcase lubricant, visually check for the presence of
water in the lubricant. If water is present, it may have settled to the bottom and
will drain out prior to the lubricant, or it may be mixed with the lubricant, giving it
a milky colored appearance. If water is noticed, have the gearcase checked by
your dealer. Water in the lubricant may result in premature bearing failure or, in
freezing temperatures, will turn to ice and damage the gearcase.

Remove the fill/drain plug and examine the lubricant draining from the gearcase
for metal particles. A small amount of metal filings or fine metal particles
indicates normal gear wear. An excessive amount of metal filings or larger
particles (chips) may indicate abnormal gear wear and should be checked by
an authorized dealer.

DRAINING GEARCASE

1. Place the outboard in a vertical operating position.

2. Place the drain pan below outboard.

eng 75

28659

a

b

28652

MAINTENANCE

3. Remove the fill/drain plug and vent plug and drain lubricant.

a - Vent plug
b - Fill/drain plug

GEARCASE LUBRICANT CAPACITY

Standard model gearcase: Approximately 320 ml (10.8 fl oz).
Command Thrust model gearcase: Approximately 370 ml (12.5 fl oz).

GEARCASE LUBRICANT RECOMMENDATION

Mercury or Quicksilver Premium or High Performance Gear Lubricant.

CHECKING LUBRICANT LEVEL AND REFILLING GEARCASE

1. Place the outboard in a vertical operating position.

2. Remove the vent plug from the vent hole.

3. Place the lubricant tube into the fill hole and add lubricant until it appears
at the vent hole.

IMPORTANT: Replace the sealing washers if damaged.

4. Stop adding lubricant. Install the vent plug and sealing washer before
removing the lubricant tube.

76 eng

28662

MAINTENANCE

5. Remove lubricant tube and install cleaned fill/drain plug and sealing
washer.

Checking Power Tilt Fluid

1. Tilt the outboard to the full up position and engage the tilt lock lever.

4530

2. Remove the fill cap and check the fluid level. The fluid level should be
even with the bottom of the fill hole. Add Quicksilver or Mercury Precision
Lubricants Power Trim and Steering Fluid. If not available, use automotive
automatic transmission fluid (ATF).

4531

eng 77

MAINTENANCE

Tube Ref

No.

114

Description Where Used Part No.

Power Trim and
Steering Fluid

Power tilt 92-858074K01

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.

78 eng

9192

STORAGE

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).

NOTICE

Without sufficient cooling water, the engine, the water pump, and other
components will overheat and suffer damage. Provide a sufficient supply of
water to the water inlets during operation.

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 tank and engine fuel system with treated (stabilized) fuel to help
prevent formation of varnish and gum. Proceed with the following instructions.

• 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.

• Permanently installed fuel tank ‑ Pour the required amount of gasoline
stabilizer (follow instructions on container) into a separate container and
mix with approximately 1 liter (1 U.S. quart) of gasoline. Pour this mixture
into fuel tank.

• Place the outboard in water or connect flushing attachment for circulating
cooling water. Run the engine for ten minutes to fill the engine fuel
system.

Flushing Device

Attaches to the water intakes; provides
a fresh water connection when flushing
the cooling system or operating the
engine.

91‑44357Q 2

Protecting External Outboard Components

•

Lubricate all outboard components listed in Maintenance ‑ Inspection
and Maintenance Schedule.

eng 79

abc

39056

37-892904-010

THIS SIDE UP

NOTICE

STORAGE

• Touch up any paint nicks. See your dealer for touch‑up paint.

• Spray Quicksilver or Mercury Precision Lubricants Corrosion Guard on
external metal surfaces (except corrosion control anodes).

Tube Ref

No.

120

Description Where Used Part No.

Corrosion Guard External metal surfaces 92-802878 55

Protecting Internal Engine Components

• Remove the spark plugs and add approximately 30 ml (1 oz) of engine oil
or inject a five second spray of storage seal inside of each cylinder.

• Rotate the flywheel manually several times to distribute the oil in the
cylinders. Install spark plugs.

• Change the engine oil.

Gearcase

•

Drain and refill the gearcase lubricant. Refer to Gearcase Lubrication.

Positioning Outboard for Storage

NOTICE

Storing the outboard in a tilted position can damage the outboard. Water
trapped in the cooling passages or rain water collected in the propeller
exhaust outlet in the gearcase can freeze. Store the outboard in the full down
position.

• To prevent problems which can be caused by oil entering the cylinders
from the sump, only store the outboard in one of the three positions
shown.

a - Upright position
b - Tiller handle down
c - Front side down

80 eng

a

b

39058

STORAGE

• Never carry, store, or transport the outboard in the two positions shown.
Engine damage could result from oil draining out of the crankcase.

a - Tiller handle up
b - Front side up

Battery Storage

• Follow the battery manufacturer's instructions for storage and charging.

• Remove the battery from the boat and check water level. Charge if
necessary.

• Store the battery in a cool, dry place.

• Periodically check the water level and charge the battery during storage.

eng 81

TROUBLESHOOTING

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/start button failure.

• Wiring or electrical connection faulty.

• Starter motor or starter solenoid failure.

Engine Will Not Start

POSSIBLE CAUSES

• Lanyard stop switch not in "RUN" position.

• Battery not fully charged.

•

Incorrect starting procedure. Refer to Operation section.

• Old or contaminated fuel.

• Fuel is not reaching the engine.

• Fuel tank is empty.

• Fuel tank vent not open or restricted.

• Fuel line is disconnected or kinked.

• Primer bulb not squeezed.

• Primer bulb check valve is faulty.

•

Fuel filter is obstructed. Refer to Maintenance section.

• Fuel pump failure.

• Fuel tank filter obstructed.

•

Open 20‑amp fuse. Check fuses, refer to Maintenance section.

• Threaded connection of an air hose is loose.

• Ignition system component failure.

•

Spark plugs fouled or defective. Refer to Maintenance section.

Engine Runs Erratically

POSSIBLE CAUSES

• Low oil pressure. Check the oil level.

•

Spark plugs fouled or defective. Refer to Maintenance section.

• Incorrect setup and adjustments.

• Fuel is being restricted to the engine.
a.

Engine fuel filter is obstructed. Refer to Maintenance section.

b. Fuel tank filter obstructed.

82 eng

TROUBLESHOOTING

c. Stuck antisiphon valve located on permanently built in type fuel tanks.
d. Fuel line is kinked or pinched.

• Fuel pump failure.

• Ignition system component failure.

Performance Loss

POSSIBLE CAUSES

• Low oil pressure. Check the oil level.

• Throttle not fully open.

• Damaged or improper size propeller.

• Incorrect engine timing, adjustments, or setup.

• Boat overloaded or load improperly distributed.

• Excessive water in bilge.

• Boat bottom is dirty or damaged.

Battery Will Not Hold Charge

POSSIBLE CAUSES

• Battery connections are loose or corroded.

• Low electrolyte level in battery.

• Worn out or inefficient battery.

• Excessive use of electrical accessories.

• Defective rectifier, alternator, or voltage regulator.

eng 83

OWNER SERVICE ASSISTANCE

Service Assistance

LOCAL REPAIR SERVICE

If you need service for your Mercury‑outboard‑powered boat, take it to your
authorized dealer. Only authorized dealers specialize in Mercury products and
have factory‑trained mechanics, special tools and equipment, and genuine
Quicksilver parts and accessories to properly service your engine.

NOTE: Quicksilver parts and accessories are engineered and built by Mercury
Marine specifically for your power package.

SERVICE AWAY FROM HOME

If you are away from your local dealer and the need arises for service, contact
the nearest authorized dealer. If, for any reason, you cannot obtain service,
contact the nearest Regional Service Center. Outside the United States and
Canada, contact the nearest Marine Power International Service Center.

STOLEN POWER PACKAGE

If your power package is stolen, immediately advise the local authorities and
Mercury Marine of the model and serial numbers and to whom the recovery is
to be reported. This information is maintained in a database at Mercury Marine
to aid authorities and dealers in the recovery of stolen power packages.

ATTENTION REQUIRED AFTER SUBMERSION

1. Before recovery, contact an authorized Mercury dealer.

2. After recovery, immediate service by an authorized Mercury dealer is

required to reduce the possibility of serious engine damage.

REPLACEMENT SERVICE PARTS

WARNING

!

Avoid fire or explosion hazard. Electrical, ignition, and fuel system
components on Mercury Marine products comply with federal and
international standards to minimize risk of fire or explosion. Do not use
replacement electrical or fuel system components that do not comply with
these standards. When servicing the electrical and fuel systems, properly
install and tighten all components.

Marine engines are expected to operate at or near full throttle for most of their
lives. They are also expected to operate in both fresh and saltwater
environments. These conditions require numerous special parts.

84 eng

OWNER SERVICE ASSISTANCE

PARTS AND ACCESSORIES INQUIRIES

Direct any inquiries concerning Quicksilver replacement parts and accessories
to your local authorized dealer. The dealer has the necessary information to
order parts and accessories for you if they are not in stock. Only authorized
dealers can purchase genuine Quicksilver parts and accessories from the
factory. Mercury Marine does not sell to unauthorized dealers or retail
customers. When inquiring about parts and accessories, the dealer requires the
engine model and serial numbers to order the correct parts.

RESOLVING A PROBLEM

Satisfaction with your Mercury product is important to your dealer and to us. If
you ever have a problem, question or concern about your power package,
contact your dealer or any authorized Mercury dealership. If you need
additional assistance:

1. Talk with the dealership's sales manager or service manager. Contact the
owner of the dealership if the sales manager and service manager have
been unable to resolve the problem.

2. If your question, concern, or problem cannot be resolved by your
dealership, please contact the Mercury Marine Service Office for
assistance. Mercury Marine will work with you and your dealership to
resolve all problems.

The following information will be needed by the Customer Service:

• Your name and address

• Your daytime telephone number

• The model and serial numbers of your power package

• The name and address of your dealership

• The nature of the problem

CONTACT INFORMATION FOR MERCURY MARINE CUSTOMER
SERVICE

For assistance, call, fax, or write to the geographic office in your area. Please
include your daytime telephone number with mail and fax correspondence.

United States, Canada

Telephone

Fax

Website www.mercurymarine.com

eng 85

English [phone]
Français [phone]

English [phone]
Français [phone]

Mercury Marine
W6250 Pioneer Road
P.O. Box 1939
Fond du Lac, WI 54936-1939

OWNER SERVICE ASSISTANCE

Australia, Pacific
Telephone [phone] Brunswick Asia Pacific Group

41–71 Bessemer Drive

Fax [phone]

Europe, Middle East, Africa
Telephone [phone] Brunswick Marine Europe

Fax [phone]

Mexico, Central America, South America, Caribbean
Telephone [phone] Mercury Marine

Fax [phone]

Japan
Telephone [phone] Kisaka Co., Ltd.

Fax [phone]

Asia, Singapore
Telephone [phone] Brunswick Asia Pacific Group

Fax [phone]

Dandenong South, Victoria 3175
Australia

Parc Industriel de Petit-Rechain
B-4800 Verviers,
Belgium

11650 Interchange Circle North
Miramar, FL 33025
U.S.A.

4‑130 Kannabecho, Sakai‑ku
Sakai‑shi, Osaka 590‑0984, Japan

T/A Mercury Marine Singapore Pte Ltd
29 Loyang Drive
Singapore, 508944

Ordering Literature

Before ordering literature, have the following information about your power
package available:

Model
Horsepower Year

UNITED STATES AND CANADA

For additional literature for your Mercury Marine power package, contact your
nearest Mercury Marine dealer or contact:

86 eng

Serial Number

OWNER SERVICE ASSISTANCE

Mercury Marine

Telephone Fax Mail

Mercury Marine

(920) 929‑5110

(USA only)

OUTSIDE THE UNITED STATES AND CANADA

Contact your nearest Mercury Marine authorized service center to order
additional literature that is available for your particular power package.

Submit the following
order form with payment
to:

Ship To: (Copy this form and print or type–This is your shipping label)

Name

Address

City, State, Province

ZIP or postal code

Country

(920) 929‑4894

(USA only)

Mercury Marine
Attn: Publications Department
W6250 Pioneer Road
P.O. Box 1939
Fond du Lac, WI 54936-1939

Attn: Publications Department

Fond du Lac, WI 54936-1939

P.O. Box 1939

Quantity Item Stock Number Price Total

. .
. .
. .
. .
. .

Total Due .

eng 87

U.S.

COAST GUARD CAP ACITY

MAXIMUM HORSEPOWER XXX

MAXIMUM PERSON
CAPACITY (POUNDS)

XXX

MAXIMUM WEIGHT
CAPACITY XXX

26777

INSTALLATION

Boat Horsepower Capacity

WARNING

!

Exceeding the boat's maximum horsepower rating can cause serious injury
or death. Overpowering the boat can affect boat control and flotation
characteristics or break the transom. Do not install an engine that exceeds
the boat's maximum power rating.

Do not overpower or overload your boat. Most boats will carry a required
capacity plate indicating the maximum acceptable power and load as
determined by the manufacturer following certain federal guidelines. If in doubt,
contact your dealer or the boat manufacturer.

Start in Gear Protection

WARNING

!

Starting the engine with the drive in gear can cause serious injury or death.
Never operate a boat that does not have a neutral‑safety‑protection device.

The remote control connected to the outboard must be equipped with a start in
neutral only protection device. This prevents the engine from starting in gear.

Selecting Accessories for Your Outboard

Genuine Mercury Precision or Quicksilver Accessories have been specifically
designed and tested for your outboard. These accessories are available from
Mercury Marine dealers.

IMPORTANT: Check with your dealer before installing accessories. The misuse
of approved accessories or the use of nonapproved accessories can damage
the product.

Some accessories not manufactured or sold by Mercury Marine are not
designed to be safely used with your outboard or outboard operating system.
Acquire and read the installation, operation and maintenance manuals for all
your selected accessories.

88 eng

51965

INSTALLATION

Low Permeation Fuel Hose Requirement

Required for outboards manufactured for sale, sold, or offered for sale in the
United States.

• The Environmental Protection Agency (EPA) requires that any outboard
manufactured after January 1, 2009, must use low permeation fuel hose
for the primary fuel hose connecting the fuel tank to the outboard.

• Low permeation hose is USCG Type B1‑15 or Type A1‑15, defined as not
exceeding 15 g/m²/24 h with CE 10 fuel at 23 °C as specified in SAE J
1527 ‑ marine fuel hose.

Mercury Marine Validated Engine Mounting Hardware

IMPORTANT: Mercury Marine provides validated fasteners and installation
instructions, including torque specifications, with all of our outboards so they
can be properly secured to boat transoms. Improper installation of the outboard
can cause performance and reliability issues that can lead to safety concerns.
Follow all of the instructions relating to the outboard installation. DO NOT
mount any other accessory onto the boat with the fasteners provided with the
outboard. For example, do not mount tow sport bars or boarding ladders onto
the boat using the mounting hardware included with the outboard. Installing
other products onto the boat that utilize the outboard mounting hardware will
compromise the ability of that hardware to properly and safely secure the
outboard to the transom.

Outboards that require validated mounting hardware will have the following
decal on the transom clamp.

eng 89

Avoid serious injury
or death. Secure
engine to transom
with bolts.

WARNING

37-896853-007

52375

a

27151

INSTALLATION

Installing Outboard

WARNING

!

Failure to correctly fasten the outboard could result in the outboard propelling
off the boat transom resulting in property damage, serious injury, or death.
Before operation, the outboard must be correctly installed with the required
mounting hardware.

BOAT TRANSOM HEIGHT REQUIREMENT

Measure the transom height of your boat. The boat bottom should be aligned or
be within 25 mm (1 in.) above the anti‑ventilation plate of the outboard.

a - Anti‑ventilation plate

INSTALLING OUTBOARD ON TRANSOM

WARNING

!

Failure to correctly fasten the outboard could result in the outboard propelling
off the boat transom resulting in property damage, serious injury, or death.
Before operation, the outboard must be correctly installed with the required
mounting hardware.

This product must be secured to the transom with the required mounting
hardware. If the outboard strikes an underwater object, the required mounting
hardware prevents the outboard from propelling off the transom. A decal on the
swivel bracket reminds the installer of the potential hazard.

90 eng