OPERATION &

MAINTENANCE MANUAL

7.4L
Bravo Three

1995, Brunswick Corporation 90-805718960 595

CA1
Identification Record
Please Record the Following Information

1.
Engine Model and Horsepower

2.
Engine Serial Number

3.
Transom Assembly Serial Number

4.
Stern Drive Unit Serial Number and Gear Ratio

5.
Propeller Number

6.
Propeller Pitch

7.
Hull Identification Number (HIN) Purchase Date

8.
Boat Manufacturer Boat Model Length

SERIAL NUMBERS
The serial numbers are the manufacturer’s keys to numerous engineering details
which apply to your MerCruiser power package. When contacting your Authorized
MerCruiser Dealer about service, always specify model and serial numbers.
The description and specifications contained herein were in effect at the time this
guide was approved for printing. Mercury Marine, whose policy is one of continuous
improvement, reserves the right to discontinue models at any time, or to change
specifications or designs, without notice and without incurring obligation.
Mercury Marine, Fond du Lac, Wisconsin, U.S.A. Printed in U.S.A.

1995, Brunswick Corporation

The following are registered trademarks of Brunswick Corporation: Auto-
blend, Jet-Prop, Mariner, Merc, MerCathode, MerCruiser, Mercury, Mercury
Marine, Quicksilver, Ride-Guide, and Thruster.

0
CB2

1 71348 2 71352

3
2 4
7 1

3 71350 4

ABC12345Z123 2

5 71773
7 6

-19 48-12345

6 5 4
71360

1
CB390
Table Of Contents
Page
Welcome! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Read This Manual Thoroughly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Lanyard Stop Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safe Boating Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Protecting People In The Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
High-Speed And High-Performance Boat Operation . . . . . . . . . . . . . . . 11
Conditions Affecting Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Weight Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Bottom Of Boat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cavitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Propeller Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
How Elevation And Climate Affect Performance . . . . . . . . . . . . . . . . 15
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operation And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Freezing Temperature Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Drive Unit Impact Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Attention Required After Submersion . . . . . . . . . . . . . . . . . . . . . . . . . 18
Trailering Boat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Launching And Boat Operation Care . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Stolen Power Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Replacement Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Do-It-Yourself Maintenance Suggestions . . . . . . . . . . . . . . . . . . . . . . 21
20-Hour Break-In Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
After Break-In Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Instrumentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Electrical System Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . 29
Models With Mercathode System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Remote Controls (Panel Mounted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Remote Controls (Console Mounted) . . . . . . . . . . . . . . . . . . . . . . . . . 33
Remote Controls (Two Lever) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Power Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Starting, Shifting And Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Operation Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Fuel Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Crankcase Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Engine Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Tune-Up Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

2
 Page
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Maintenance Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Maintenance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Checking Fluid Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Changing Fluids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Water Separating Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Fuel Pump Sight Tube Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Propeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Flushing Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Seawater Pump Impeller Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Cleaning Seawater (Raw Water) Section Of
Heat Exchanger And Oil/Power Steering
Cooler - Closed Cooling Models Only . . . . . . . . . . . . . . . . . . . . . . . . 81
Drive Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Corrosion And Corrosion Protection . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Miscellaneous Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Bottom Of Boat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Inspection And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Cold Weather Or Extended
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Power Package Lay Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Draining Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Battery Winter Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Owner Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
International Owner Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Warranty Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Mercruiser Limited Warranty - Gasoline Engines . . . . . . . . . . . . . . . 112
Mercruiser International Warranty - Gasoline Engines . . . . . . . . . . 114
3 Year Limited Warranty Against
Corrosion Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Warranty Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Transferable Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Q-guard Product Protection Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Owner Service Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Customer Service Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
General Maintenance Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Literature Order Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

3
CA165
Welcome!
You have selected one of the finest marine power packages available. It in-
corporates numerous design features to assure operating ease and durabil-
ity.
With proper care and maintenance, you will thoroughly 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 MerCruiser products. We sincerely
hope your boating will be pleasant!
Consumer Affairs Department

4
CA166
Read This Manual Thoroughly
IF YOU DON’T UNDERSTAND ANY PORTION, CONTACT YOUR
DEALER FOR A DEMONSTRATION OF ACTUAL STARTING
AND OPERATING PROCEDURES.
NOTICE
Throughout this publication, and on your power package, WARN-
INGS and CAUTIONS, accompanied by the International Hazard
Symbol ! , may be used to alert the installer/user to special instruc-
tions concerning a particular service or operation that may be haz-
ardous if performed incorrectly or carelessly. Observe them care-
fully.
These “Safety Alerts” alone cannot eliminate the hazards that they
signal. Strict compliance with these special instructions while per-
forming the service, plus ”common sense” operation, are major acci-
dent prevention measures.

! WARNING
WARNING-Hazards or unsafe practices which could result in
severe personal injury or death.

! CAUTION
CAUTION-Hazards or unsafe practices which could result in mi-
nor personal injury or product or property damage.

IMPORTANT: - Indicates information or instructions that are

necessary for proper operation and /or maintenance.

! WARNING
The operator (driver) is responsible for the correct and safe op-
eration 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.

5
CA280
Lanyard Stop Switch

2 1

74608

1 Some boats come equipped with a lanyard stop switch. A lanyard

stop switch can also be installed as an accessory. The purpose of this
switch is to turn off the engine ignition whenever the operator (when
attached to the lanyard) moves far enough away from the operator’s
position to activate the switch.
2 The lanyard is a cord usually between 4 and 5 feet (1220 and 1524
mm) in length when stretched out with an element on one end made
to be inserted into the switch and a metal snap on the other end for
attaching to the operator. It is coiled to make its at rest condition as
short as possible so as to minimize the likelihood of lanyard entangle-
ment with nearby objects. It is made as long as it is in its stretched
condition 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 for any reason it is desired to have a shorter
functional lanyard, this may be accomplished by using up length in
the way the lanyard and clip are attached to the operator (such as
wrapping the lanyard around the operator’s wrist or leg) or by tying
a simple knot in the lanyard.
Read the Safety Warning on this page and the following page
before electing to install, use, or not to use such a switch.

! WARNING
The following advantages and disadvantages of a lanyard stop
switch should be considered before electing to use, or not to
use, such a switch.

6
ADVANTAGES: The purpose of a lanyard stop switch is to stop
the engine ignition whenever the operator (when attached to the
lanyard) moves far enough away from the operator’s position to
activate the switch. This would occur if the operator falls or
moves within the boat a sufficient distance from the operator’s
position. This type of accident is most likely in certain types of
boats such as low-sided boats, and high-performance boats,
It is also likely as a result of poor operating practices such as
sitting on the back of the seat at planing speeds, standing at
planing speeds, operating at high speeds in shallow or ob-
stacle-infested waters, releasing your grip on a steering wheel
that is pulling in one direction, drinking and driving, or daring,
high-speed boat maneuvers.

DISADVANTAGES: Inadvertent activation of the switch is also

a possibility. This could cause any, or all, of the following poten-
tially hazardous situations:
1. Loss of balance and falling forward of unstable boat passen-
gers - a particular concern in bow rider type boats.
2. Loss of power and directional control in heavy seas, strong
current or high winds.
3. Loss of control when docking.

While activation of the lanyard stop switch will result in immedi-

ate power shut-down, a boat can continue to coast for some dis-
tance 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.
As we cannot possibly know of and advise the boating public
of all conceivable boat/motor types and/or poor operating prac-
tices, the final decision of whether to use a lanyard stop switch
rests with you, the owner/driver.
We strongly recommend that other occupants be instructed on
proper starting and operating procedures should they be re-
quired to operate the engine and boat in an emergency.

7
CA281
Safe Boating Suggestions
In order to safely enjoy the waterways, familiarize yourself with local
and other governmental boating regulations and restrictions, and
consider the following suggestions.
• Know and obey all nautical rules and laws of the waterways.
Boat operators should complete a boating safety course. Courses
are offered in the U.S.A. by (1) The U.S. Coast Guard Auxiliary,
(2) The Power Squadron, (3) The Red Cross and (4) your state
or provincial boating law enforcement agency. Inquiries may be
made to the Boating Hotline, 1-800-368-5647 or the Boat U.S.
Foundation information number 1-800-336-BOAT.
We strongly recommend that all powerboat operators attend one of
these courses.
You should also review the NMMA Sources of Waterway Information
booklet. It lists regional sources of safety, cruising and local naviga-
tion and is available at no charge by writing to:
Sources of Waterway Information
National Marine Manufacturers Association
410 N. Michigan Avenue
Chicago, IL 60611 U.S.A.
• Perform safety checks and required maintenance. Follow a
regular schedule and ensure that all repairs are properly made.
• Check safety equipment on board. Here are suggestions of the
types of safety equipment to carry when boating:
(1) Approved fire extinguisher(s); paddle or oar.
(2) Signal devices: flashlight, rockets or flares, flag and whistle or
horn.
(3) Spare propeller, thrust hubs and an appropriate wrench.
(4) Tools for necessary minor repairs; first aid kit and book.
(5) Anchor and extra anchor line; water-proof storage containers.
(6) Manual bilge pump and extra drain plugs; compass and map or
chart of area.
(7) Spare operating equipment; batteries, bulbs, fuses, etc.
(8) Transistor radio
(9) Drinking water

8
• Know 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. Just
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, wearable-type life jacket (per-
sonal flotation device), correctly sized and readily accessible for
every person on board, 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. Instruct at least one person on
board 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 capacity
plate). When in doubt, contact your dealer or the boats manufac-
turer. Know your boat’s operating and loading limitations.
• Make sure everyone in the boat is properly seated. Don’t allow
anyone to sit or ride on any part of the boat that was not intended
for such use. This includes backs of seats, gunwales, transom,
bow, decks, raised fishing seats, any rotating fishing seat; any-
where 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.
• Never be under the influence of alcohol or drugs while boat-
ing (it is the law). They 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 “main-
tain a proper lookout by sight (and hearing).” The operator must
have an unobstructed view particularly to the front. No passen-
gers, load, or fishing seats should block the operators view when
operating the boat above idle or planing transition speed. Watch
“the other guy,” the water and your wake.

9
• Never drive your boat directly behind a water skier in case
the skier falls. As an example, your boat traveling at 25 miles per
hour (40 km/hr) in 5 seconds will overtake a fallen skier who was
200 feet in front of you.
• Watch fallen skiers. When using your boat for water skiing or
similar activities, always keep a fallen or down skier on the opera-
tor’s side of the boat while returning to attend the skier. The opera-
tor should always have the down skier in sight and never back up
to the skier or anyone in the water.
• Report accidents. 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.

10
CA282
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 drive unit 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 Boat Is Stationary

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

! WARNING
Stop your engine immediately whenever anyone in the water is
near your boat. Serious injury to the person in the water is likely
if contacted by a rotating propeller, a moving boat, a moving
gear case, or any solid device rigidly attached to a moving boat
or gear case.

CA283
High-Speed And High-Performance
Boat Operation
If your boat is considered a high-speed or high-performance boat
with which you are unfamiliar, we recommend that you never operate
it at its high speed capability without first requesting an initial orienta-
tion and familiarization demonstration ride with your dealer or an op-
erator experienced with your boat. For additional information, obtain
a copy of our “Hi-Performance Boat Operation” booklet (Part Number
90-86168--3) from your dealer, distributor, or Mercury Marine.

11
CA7
Conditions Affecting
Operation
Weight Distribution
Positioning of weight (passengers and gear) inside the boat has the
following effects:
Shifting weight to rear (stern) will:
• Generally increases speed and engine RPM.
• At extremes can cause boat to porpoise.
• Causes bow to bounce in choppy water.
• Increases danger of following wave splashing into boat when
coming off plane.
Shifting weight to front (bow) will:
• Improve ease of planing.
• Improve rough water ride.
• At extremes, can cause boat to veer back and forth (bow steer).

CA8

Bottom Of Boat
To maintain maximum speed, the following conditions of the boat bot-
tom should be observed.
A. Clean, free of barnacles and marine growth.
B. Free of distortion; nearly flat where it contacts the water.
C. Straight and smooth, fore and aft.
Marine vegetation may accumulate when boat is docked. This
growth must be removed before operation; it may clog water inlets
and cause engine to overheat.

12
CA9
Cavitation
Cavitation occurs when water flow cannot follow the contour of a
fast-moving underwater object, such as a gear housing or propeller.
Cavitation permits the propeller to speed up, but the boat speed to
reduce. Cavitation can seriously erode the surface of the gear hous-
ing or propeller. Common causes of cavitation are:
A. Weeds or other debris snagged on propeller or gear housing.
B. Bent propeller blade or damaged gear housing skeg.
C. Raised burrs or sharp edges on propeller or gear housing.
CA10
Ventilation
Ventilation is caused by surface air or exhaust gases which are intro-
duced around the propeller resulting in propeller speedup and a re-
duction in boat speed. Excessive ventilation is annoying and usually
caused by:
A. Drive unit trimmed out too far.
B. A missing propeller diffuser ring.
C. A damaged propeller or gear housing, which allows exhaust
gases to escape between propeller and gear housing.
D. Drive unit installed too high on transom.
CA294
Propeller Selection
IMPORTANT: Installed propeller must allow engine to run at
its specified maximum wide-open-throttle revolutions per
minute (RPM). Use an accurate service tachometer to verify
engine operating RPM.

It is the responsibility of the boat manufacturer and/or the selling

dealer to equip the power package with the correct propeller(s). Spe-
cified engine wide-open-throttle (WOT) and operating RPM range
are listed in “SPECIFICATIONS”.

13
IMPORTANT: The engines covered in this manual are equipped
with an RPM rev-limiter that is set to an upper (or limited) RPM
amount. This limit is slightly above the normal operating range
of the engine and is designed to help prevent damage from ex-
cessive engine RPM. Once the RPM drop into the recommended
operating RPM range normal engine operation resumes.

Select a propeller that will allow the engine power package to operate
at or near the top end of the recommended wide-open-throttle oper-
ating RPM range with a normal load. High RPM, caused by an exces-
sive trim angle, should not be used in determining correct propeller
selection.
If full throttle operation is below the recommended range, the propel-
ler must be changed to prevent loss of performance and possible en-
gine damage. On the other hand, operating an engine above the rec-
ommended operating RPM range will cause higher than normal wear
and/or damage. Generally, there is a 200-300 RPM change between
propeller pitches.
After initial propeller selection, the following common problems may
require that the propeller be changed to a lower pitch:
• Warmer weather and greater humidity cause an RPM loss.
• Operating in a higher elevation causes an RPM loss.
• Operating with a damaged propeller or dirty boat bottom causes
an RPM loss.
• Operating with increased load ( additional passengers, pulling
skiers, etc.)
For better acceleration, such as is needed for water skiing, use the
next lower pitch propeller. However, do not operate at full throttle
when using the lower pitch propeller but not pulling skiers.

14
CA12
How Elevation And Climate Affect Performance
Elevation has a very noticeable effect on the wide-open-throttle pow-
er of an engine. Since air (containing oxygen) gets thinner as eleva-
tion increases, the engine begins to starve for air. Humidity, baromet-
ric pressure and temperature do have a noticeable effect on the
density of air. Heat and humidity thin the air. This condition can be-
come particularly annoying when the propeller testing was done on
a cool, dry day. Then later; on a hot, sultry day, the boat doesn’t seem
to have the same performance.
Although some performance can be regained by dropping to a lower
pitch propeller, the basic problem still exists. In some cases, a gear
ratio change to more reduction is possible and very beneficial.
Summer conditions of high temperature, low barometric pressure
and high humidity all combine to reduce the engine power. This, in
turn, is reflected in decreased boat speeds, as much as 2 or 3 miles
per hour in some cases. Nothing will regain this speed for the boater,
but the coming of cool, dry weather.
In pointing out the practical consequences of weather effects, an en-
gine running on a hot, humid, summer day, may encounter a loss of
as much as 14% of the horsepower it would produce on a dry, brisk
spring or fall day. With the drop in available horsepower, this propel-
ler will, in effect, become too large. Consequently, the engine oper-
ates at less than its recommended RPM. This will result in further loss
of horsepower at the propeller with another decrease in boat speed.
This secondary loss, however, can be somewhat regained by switch-
ing to a lower-pitch propeller that allows the engine to again run at
recommended RPM.
For boaters to realize optimum engine performance under changing
weather conditions, it is essential that the engine be propped to allow
it to operate at or near the top end of the recommended maximum
RPM range at wide-open-throttle with a normal boat load.
Not only does this allow the engine to develop full power, but equally
important is the fact that the engine also will be operating in an RPM
range that discourages damaging detonation. This, of course, en-
hances overall reliability and durability of the engine.

15
CA13
Important Information
Operation And Maintenance
OWNER/OPERATOR RESPONSIBILITIES
It is the operator’s responsibility to perform all safety checks; to en-
sure that all lubrication and maintenance instructions are complied
with for safe operation and to return the unit to an Authorized Mer-
Cruiser Dealer for a periodic checkup.
Normal maintenance service and replacement parts are the respon-
sibility of the owner/operator and as such, are not considered defects
in workmanship or material within the terms of the warranty. Individu-
al operating habits and usage contribute to the need for maintenance
service.
Proper maintenance and care of your power package will assure op-
timum performance and dependability, and will keep your overall op-
erating expenses at a minimum. See your Authorized MerCruiser
Dealer for service aids.
CA14
DEALER RESPONSIBILITIES
In general, a dealer’s responsibilities to the customer include prede-
livery inspection and preparation such as:
• Make sure that the boat is properly equipped.
• Prior to delivery, make certain that the MerCruiser power package
and other equipment are in proper operating condition.
• Make all necessary adjustments for maximum efficiency.
• Familiarize the customer with the on-board equipment.
• Explain and demonstrate the operation of the power package and
boat.
• At the time of delivery, the dealer should provide you with a copy
of a Predelivery Inspection Checklist.
• Your selling dealer should fill out the Warranty Registration Card
completely and mail it to the factory immediately upon sale of the
new product.

16
CA15
Freezing Temperature Operation
IMPORTANT: It boat is operated during periods of freezing tem-
perature, precautions must be taken to prevent freezing dam-
age to power package. Refer to “COLD WEATHER or EX-
TENDED STORAGE” for draining instructions.
CA17
Drive Unit Impact Protection
The Power Trim hydraulic system is designed to provide impact pro-
tection for drive unit. If a submerged object is struck while boat is
moving forward, the hydraulic system will cushion the kickup of drive
unit as it clears the object, reducing damage to unit. After drive unit
has cleared object, the hydraulic system allows drive unit to return
to original operating position, preventing loss of steering control and
engine overspeed.
Use extreme caution when operating in shallow water or where un-
derwater objects are known to be present. Use extreme care to pre-
vent striking submerged object while operating in REVERSE. No im-
pact protection is provided in REVERSE.
If drive unit should strike a submerged object, stop engine as soon
as possible and inspect drive unit for damage. If damage is present
or suspected, boat should be taken to an Authorized MerCruiser
Dealer for thorough inspection and necessary repair. Operating a
damaged drive unit could cause additional damage to other parts of
drive unit, or could affect control of boat. If continued running is nec-
essary, do so at greatly reduced speeds.
IMPORTANT: Impact protection system cannot be designed to
ensure total protection from impact damage under all condi-
tions.

17
CA18
Attention Required After Submersion
• Before recovery, contact a MerCruiser Dealer.
• After recovery, immediate service by an Authorized MerCruiser
Dealer is required to prevent serious damage to power package.
CA19
Trailering Boat
Boat can be trailered with drive unit in “up” or “down” position. Ade-
quate road clearance is required between road and gear housing
skeg when trailering with drive unit in “down” position.
If adequate road clearance is a problem, place drive unit in full trailer
position and support with an optional trailer kit which is available from
your Authorized MerCruiser Dealer.

18
CA20
Launching And Boat Operation Care

! CAUTION
During launching from a trailer, if the unloading ramp is steep
or the trailer bed must be tilted, the boat may enter the water rap-
idly and at a steep angle. This may force water through the ex-
haust system into the cylinders. The more weight on the tran-
som, the more likely this is to occur.

Slowing down rapidly or stopping suddenly may cause a follow-

ing wave to “swamp” the transom. In this instance, water may
enter the cylinders through the exhaust system.

When backing up rapidly, the same situation may occur as

stated in the preceding paragraph.

In any of these situations, water entering the engine could cause se-
vere damage to internal parts. Refer to “Attention Required After
Submersion”.

CA21
Stolen Power Package
If your power package is stolen, immediately advise the local authori-
ties and Mercury Marine of the model and serial number(s) and to
whom the recovery is to be reported. This “Stolen Motor” information
is placed into a file at Mercury Marine to aid authorities and dealers
in recovery of stolen motors.

19
CA22
Replacement Service Parts

! WARNING
Electrical, ignition and fuel system components on MerCruiser
gasoline power packages are designed and manufactured to
comply with U.S. Coast Guard rules and regulations to minimize
risks of fire or explosion.

Use of replacement electrical, ignition or fuel system compo-

nents, which do not comply to these rules and regulations,
could result in a fire or explosion hazard and should be avoided.

When servicing the electrical, ignition and fuel systems, it is ex-

tremely important that all components are properly installed
and tightened. If not, any electrical or ignition component would
permit sparks to ignite fuel vapors from fuel system leaks, if
they existed.

Marine engines are expected to operate at or near full–throttle for

most of their life. They are also expected to operate in both fresh and
saltwater environments. These conditions require numerous special
parts. Care should be exercised when replacing marine engine parts
as specifications are quite different from those of the standard auto-
motive engine.
For example, one of the most important, and probably the least sus-
pected special replacement part, is the cylinder head gasket. Since
saltwater is highly corrosive, the steel-type automotive head gasket
cannot be used. A marine engine head gasket uses special materials
to resist corrosive action.
Since marine engines must be capable of running at or near maxi-
mum RPM much of the time, special valve springs, valve lifters, pis-
tons, bearings, camshafts and other heavy-duty moving parts are re-
quired for long life and peak performance.
These are but a few of the many special modifications that are re-
quired in MerCruiser marine engines to provide long life and depend-
able performance.

20
CA23
Do-It-Yourself Maintenance Suggestions
If you are one of those persons who likes to do-it-yourself, here are
some suggestions for you.
• Present-day marine equipment, such as your MerCruiser power
package, are highly technical pieces of machinery. Electronic ig-
nition and special carburetion provide greater fuel economies, but
also are more complex for the untrained mechanic.
• Do not attempt any repairs which are not covered in this manual
unless you are aware of the precautions (“Cautions” and “Warn-
ings”) and procedures required. Your safety is of our concern.
• If you attempt to service the product yourself, we suggest you or-
der the service manual for that model. The service manual out-
lines the correct procedures to follow. It is written for the trained
mechanic, so there may be procedures you don’t understand. Do
not attempt repairs if you do not understand the procedures.
• There are special tools and equipment that are required to per-
form some repairs. Do not attempt these repairs unless you have
these special tools and/or equipment. You can cause damage to
the product in excess of the cost a dealer would charge you.
• Also, if you partially disassemble an engine or drive assembly and
are unable to repair it, the dealer’s mechanic must reassemble the
components and test to determine the problem. This will cost you
more than taking it to the dealer immediately upon having a prob-
lem. It may be a very simple adjustment to correct the problem.
• Do not telephone the dealer, service office or the factory to at-
tempt for them to diagnose a problem or request the repair proce-
dure. It is difficult for them to diagnose a problem over the tele-
phone. A doctor can’t and won’t diagnose your illness by
telephone; he must examine you personally, just as a mechanic
must examine your power package.
• Your Authorized Dealer is there to service your power package.
He has qualified factory-trained mechanics.
It is recommended you have the dealer do periodic maintenance
checks on your power package. Have him winterize it in the fall and
service it before the boating season. This will reduce the possibility
of any problems occurring during your boating season when you
want trouble-free boating pleasure.

21
CA24
20-Hour Break-In Period
IMPORTANT: The first 20 hours of operation is the engine
break-in period. Correct break-in is essential to obtain mini-
mum oil consumption and maximum engine performance. Dur-
ing this break-in period, the following rules must be observed:
• Do not operate below 1500 RPM for extended periods of time for
first 10 hours. Shift into gear as soon as possible after starting and
advance throttle above 1500 RPM if conditions permit safe op-
eration.
• Do not operate at one speed consistently for extended periods.
• Do not exceed 3/4 throttle during first 10 hours. During next 10
hours, occasional operation at full throttle is permissible (5 min-
utes at a time maximum).
• Avoid full throttle acceleration from IDLE speed.
• Do not operate at full throttle until engine reaches normal operat-
ing temperature.
• Frequently check crankcase oil level. Add oil if needed. It is nor-
mal for oil consumption to be high during break-in period.
• After 20-hour break-in period, drain crankcase oil and replace oil
filter (see MAINTENANCE). Fill crankcase with correct oil (see
SPECIFICATIONS).
CA211

After Break-In Period

To help extend the life of your MerCruiser power package, the follow-
ing recommendations should be considered;
• Use a propeller that allows the engine to operate at or near the top
of the maximum RPM range (See “Specifications” section) when
at full throttle with a normal boat load.
• Operation at 3/4 throttle setting or lower is recommended. Refrain
from prolonged operation at maximum (full throttle) RPM.

22
CB270

20-Hour Checkup
After first 20 hours of operation, an Authorized MerCruiser Dealer
should be contacted for the following maintenance. The boat owner
is responsible for any charges.
• Change crankcase oil and filter.
• Retorque intake manifold to
35 lb.ft. (48 N·m).
• Check all fluid levels.
• Cooling System: Inspect all hoses for damage and deterioration;
check all hose clamps for adequate tightness.
• Check carburetor adjustment.
• Inspect ignition system and timing.
• Check for loose, missing or damaged parts.
• Check shift and throttle cable adjustments, and lubricate and in-
spect for loose, damaged or missing parts.
• Steering System: Lubricate and inspect for loose, damaged or
missing parts.
• Inspect all drive belts.
• Check engine alignment. Include proper lubrication of U-joint and
splined shaft.
• Inspect Complete Engine Exhaust System (Externally) for dam-
age and deterioration; check all hose clamps for adequate tight-
ness.
• Retorque gimbal ring clamping screws to 50-55 lb. ft. (67-74 N⋅m).
• Check that both front engine mount locknuts are tightened se-
curely. Then, check to ensure that tab washers are bent down
over adjusting nuts.
• Check that rear engine mounts are torqued to
35-40 lb.ft. (47-54 N⋅m).

23
CA26

1 70514
2 70515 3 70516

10 70523 4 70517

70522
9 5 70518

8 70521
7 70520 6 70519

24
CA27
Operation
Instrumentation
The following is a brief explanation of instrumentation typically found
on some boats. The owner/operator should be familiar with all instru-
ments and their functions on the boat. Because of the large variety
of instrumentation and manufacturers, you should have your boat
dealer explain the particular gauges and normal readings that will ap-
pear on your style gauges.
1 Speedometer: Indicates boat speed.
2 Tachometer: Indicates engine RPM.
3 Oil Pressure Gauge: Indicates engine oil pressure.
4 Battery Meter: Indicates battery voltage.
5 Water Temperature Gauge: Indicates engine operating tempera-
ture.
6 Fuel Gauge: Indicates fuel tank volume.
7 Power Trim Gauge: Indicates drive unit angle (trim up/out and
down/in).
8 Hour Meter: Records engine running time.
9 Bilge Blower Switch: Must be operated for five minutes before
starting engine, to ventilate bilge.
10 Ignition Switch: Allows operator to start and stop engine.

25
CB218

1A 70516

1B 70518

1C 71987

26
CB200
Audio Warning System
Your MerCruiser power package is equipped with an Audio Warning
System.
1 The audio warning system buzzer will sound if one of the following
occur:
A Insufficient Oil Pressure
B Excessive Engine Temperature
C Insufficient Drive Lubricant
NOTE: To provide a test of the system, the audio warning buzzer will
sound when the ignition switch is first turned to the run position, prior
to cranking the engine. Once the engine starts, the buzzer should
stop.

! CAUTION
Avoid engine damage. Do not operate engine once the buzzer
has sounded EXCEPT TO AVOID A HAZARDOUS SITUATION.
The Audio Warning System will not protect the engine from
damage. It is designed to warn the operator that a problem has
occurred.

When the buzzer sounds with the engine running, stop engine im-
mediately. Investigate cause and correct it, if possible. If cause can-
not be determined, consult your Authorized MerCruiser Dealer.

27
CB125

4
1 71466 2 70525 70527

5 70528

71773

70526

28
CA30
Electrical System Overload Protection
If an electrical overload occurs, a fuse will blow or the circuit breaker
will trip open. The cause must be found and corrected before replac-
ing fuse or resetting circuit breaker.
1 A circuit breaker provides protection for engine wiring harness
and instrumentation power lead. Reset by pushing RESET button.
In an emergency, when engine must be operated and cause for high
current draw cannot be located and corrected, turn OFF or discon-
nect all accessories connected to engine and instrumentation wiring.
Reset circuit breaker. If breaker will not reset, electrical overload has
not been eliminated. Further checks must be made on electrical sys-
tem.
2 A 20 amp fuse may be located in ignition switch “I” terminal lead
to protect electrical system. Check for blown fuse if key Is turned to
START and nothing happens (and circuit breaker is not tripped).
3 The Power Trim System is protected from overload by 110 amp
fuse and a 20 amp in-line fuse on Power Trim pump.
4 Quicksilver Three-Button Power Trim Control Panel is further pro-
tected by a 20 amp in-line fuse.
CA31
Models With Mercathode System
5 A 20 amp in-line fuse is in wire which connects to positive (+) ter-
minal on controller. If fuse is blown, system will not operate. (For ad-
ditional information see “Corrosion and Corrosion Protection” sec-
tion.)

29
CB181

3
2

5 4
6

30
CB182
Remote Controls (Panel Mounted)
Your boat may be equipped with one of many Quicksilver remote
controls available. All controls feature an integral safety switch that
allows starting engine in NEUTRAL only. Also, all controls may not
have all features shown. If boat is equipped with a remote control oth-
er than shown, consult your dealer for a description and/or demon-
stration of the control.
1 Neutral Lock Bar - Prevents accidental shift and throttle engage-
ment. Neutral lock bar must be pulled “Up” to move the control handle
out of neutral.
2 Throttle Only Button - Allows engine throttle advancement with-
out shifting the engine. This is done by disengaging the shift mecha-
nism from the control handle. The throttle only button can be
depressed only when the remote control handle is in the “Neutral”
position, and should only be used to assist in starting the engine.
3 Power Trim Switch - See “Power Trim” for detailed power trim
operating procedures.
4 Trailer Switch - Used to raise drive unit for trailering, launching,
breaching or shallow water operation. See “Power Trim” for detailed
trailer switch operation.
5 Lanyard Stop Switch - Turns ignition “Off” whenever the opera-
tor (when attached to the lanyard) moves far enough away from the
operator’s position to activate the switch. See “Lanyard Stop Switch”
at the front of this manual for safety warning on the use of this switch.
6 Control Handle Tension Adjustment Screw - This screw can be
adjusted to “Increase” or “Decrease” the tension on the control han-
dle. This will help prevent “Creep” of the remote control handle. Turn
screw “Clockwise” to increase tension and “Counterclockwise” to
decrease tension. Adjust to tension desired.
7 Control Handle - Operation of the shift and throttle are controlled
by the movement of the control handle. “Push” the control handle for-
ward from “Neutral” with a quick firm motion to the first detent for “For-
ward” 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 pushing back to increase speed.

31
CB183

4 1

3
5

5
3

6
32
CB184
Remote Controls (Console Mounted)
1 Control Handle(s) - Operation of the the shift and throttle are
controlled by the movement of the control handle. “Push” the control
handle forward from “Neutral” with a quick firm motion to the first det-
ent 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 pushing back to
increase speed.
2 Throttle Only Button - Allows engine throttle advancement with-
out shifting the engine. This is done by disengaging the shift mecha-
nism from the control handle. The throttle only button can be
depressed only when the remote control handle is in the “Neutral”
position, and should only be used to assist in starting the engine.
3 Control Handle Tension Adjustment Screw - This screw can be
adjusted to “Increase” or “Decrease” the tension on the control han-
dle (cover must be removed to adjust). This will help prevent “Creep”
of the remote control handle. Turn screw “Clockwise” to increase ten-
sion and “Counterclockwise” to decrease tension. Adjust to tension
desired.
4 Power Trim Switch - See “Power Trim” section for detailed power
trim operating procedures.
5 Trailer Switch - Used to raise drive unit for trailering, launching,
breaching or shallow water operation. See “Power Trim” for detailed
trailer switch operation.
6 Power Trim Adjustment Switches (Used on Three Button
Trim Control Only) - See “Power Trim” section for detailed power
trim operating procedures.

33
CB185

2
1

71339

3
70537

34
CB186
Remote Controls (Two Lever)
1 Shift Lever - shifts unit into gear with full lever movement. Move
lever forward to shift to FORWARD gear. Move lever backward to
shift to REVERSE gear. Lever in full vertical position shifts to NEU-
TRAL.

! CAUTION
Never shift unit into or out of gear unless throttle lever is a idle
RPM.

2 Throttle Lever - allows engine RPM to be increased or decreased.

3 FRICTION Screw - adjusts control handle friction so motor speed
can be set and driver does not have to hold handle.
Turn screw clockwise to increase friction. Do not thread screw all the
way out.
4 DETENT Screw - controls the effort needed to move control han-
dle out of NEUTRAL. To increase tension, turn screw clockwise; to
decrease, turn screw counterclockwise. Do not thread screw all the
way out.
IMPORTANT: Boats equipped with dual power packages may
have both shift levers on one control and both throttle levers on
the other control.

35
CA34

3° - 5°

1
71338

36
CA284
Power Trim
Power Trim allows the operator to adjust the drive angle, while under-
way, to provide the ideal boat angle for varying load and water condi-
tions. Also, the Power Trim system “Trailering” feature allows the op-
erator to raise and lower the drive unit for trailering, beaching,
launching and low speed (below 1200 RPM engine speed), shallow
water operation.

! CAUTION
Never trim the drive unit UP/OUT using TRAILER switch while
boat is underway at engine speeds above 1200 RPM. Use ex-
treme caution when operating with drive unit raised. Severe
damage to the drive unit may result if unit is raised beyond the
gimbal ring support flanges at engine speeds above 1200 RPM.

1 In most cases, best overall performance is obtained with the drive

unit adjusted so the boat bottom will run at a 3° to 5° angle to the wa-
ter.
Trimming Drive Unit UP/OUT Can:
• Lower the bow.
• Generally increase top speed.
• Increase clearance over submerged objects or a shallow bottom.
• Cause boat to accelerate and plane off slower.
• In excess, cause boat “porpoising” (bouncing) or propeller ventila-
tion.
• Cause engine overheating if trimmed UP/OUT to a point where
any cooling water intake holes are above the water line.
Trimming Drive Unit DOWN/IN Can:
• Help the boat accelerate and plane off quicker.
• Generally improve the ride in choppy water.
• In most cases, reduce boat speed.
• If in excess, lower the bow of some boats to a point at which 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 steer-
ing” or “over steering” if any turn is attempted, or if a significant
wave is encountered.

37
CB187

1
73976

5
6

73977

38
CB188
POWER TRIM OPERATION - PANEL MOUNT
REMOTE CONTROL

IMPORTANT: If TRAILER button is held depressed after drive

unit reaches end of upward travel, an internal circuit breaker will
open and pump will stop. Should this happen, release button
and allow motor to cool for about one minute. Circuit breaker
will reset and Power Trim operation may be resumed.

1 Trailer Position: Press button until drive unit reaches desired

height.
2 Trim Up/Out: Press UP on Trim switch until drive unit reaches de-
sired trim position.
3 Lower Drive Unit: Press DOWN on Trim switch until drive unit
reaches desired position.

CB189
POWER TRIM OPERATION - CONSOLE MOUNT
REMOTE CONTROL (SINGLE ENGINE VERSION)
4 Trailer Position: Press button until drive unit reaches desired
height.
5 Trim Up/Out: Press UP on Trim switch until drive unit reaches de-
sired trim position.
6 Lower Drive Unit: Press DOWN on Trim switch until drive unit
reaches desired position.

39
CB190

2A

1
2B

73979

73978

40
CA285
POWER TRIM OPERATION - DUAL ENGINE CONSOLE
MOUNT REMOTE CONTROL (TWO BUTTON AND THREE
BUTTON VERSIONS)
IMPORTANT: If TRAILER button is held depressed after drive
unit reaches end of upward travel, an internal circuit breaker will
open and pump will stop. Should this happen, release button
and allow motor to cool for about one minute. Circuit breaker
will reset and Power Trim operation may be resumed.

! CAUTION
When lowering or raising stern drives equipped with a dual
engine tie bar kit; in the trailering position, stern drives must be
lowered evenly to prevent tie bar from becoming twisted. Fail-
ure to lower stern drives evenly may result in tie bar or stern
drive(s) damage.

1 Trailer Button (Both Versions) - Press button until drive unit reach-
es desired height for trailering drive units.
2 Two Button Trim Control (Dual Buttons in Handle) - used to
contol both drive units from the handle. Press UP on button(s) to trim
drive unit UP/OUT. Press down on button(s) to trim drive unit DOWN/
IN.
A Forward Trim Button - Used to trim the port drive unit.
B Rear Trim Button - Used to trim the starboard drive unit.

3 Three Button Trim Control (Trim Adjustment Switch’s) - With

a single integral trim button in the handle to control two drive units
simultaneously, these two switches control the “Fine Tune” adjust-
ment of each drive unit. Using these “Fine Tune Switches”, set each
drive unit to the desired trim angle. Then use the single trim switch
in the handle to control the trim of both drive units simultaneously.
4 Three Button Trim Control (Single Trim Switch in Handle) -
used to trim both drives simultaneously after drives have been fine-
tuned as described above.

41
CB192

70540

70540

3 70540

42
CB193
POWER TRIM OPERATION - THREE BUTTON TRIM PANEL
(USED ON MODELS WITHTWO-LEVER CONTROL)

IMPORTANT: If TRAILER button is held depressed after drive

unit reaches end of upward travel, an internal circuit breaker will
open and pump will stop. Should this happen, release button(s)
and allow motor to cool for about one minute. Circuit breaker
will reset and Power Trim operation may be resumed.

1 Trailer Position: Simultaneously press the UP button (top) along

with the UP/OUT button (center) until drive unit reaches desired trail-
er position.
2 Trim Drive Unit UP/OUT: Press center UP/OUT button until drive
unit reaches desired trim position.
3 Trim Drive Unit IN/DOWN: Press IN button until drive unit reaches
desired trim position.

43
CA40
Starting, Shifting And Stopping

! WARNING
Before starting engine, operate bilge blower for at least five min-
utes to remove any explosive fumes from engine compartment.
If boat is not equipped with a bilge blower, open engine hatch
and leave open while starting engine.

IMPORTANT: Observe the following:

• Do not start engine without water being supplied to seawater
pickup pump (to prevent pump or engine damage).
• Do not operate starter motor continuously for more than 30
seconds.
• When engine starts, quickly reduce throttle setting to avoid
exceeding 1500 RPM.
• Never shift drive unit unless engine is at Idle RPM.

1 Perform the following as appropriate:

A Check all items listed in OPERATION CHART.
B Perform any other necessary checks, as indicated by your dealer,
or specified in your boat owner’s manual.
C Place drive unit in full down/in position.
D Place control handle in NEUTRAL.
E Position throttle setting as follows: COLD ENGINE - Move control/
throttle lever to full throttle, then return to about 1/4 throttle. In ex-
treme cold it may be necessary to pump lever more than once.
WARM ENGINE - Move control/throttle lever to 1/4 throttle position.

44
FLOODED ENGINE - Move control/throttle lever to full throttle. Be
prepared to decrease engine speed to 1000-1500 RPM as soon as
engine starts.
F Turn ignition key to START Release key when engine starts and
allow switch to return to RUN position. Move control/ throttle lever
back to decrease engine RPM to 1000-1500 RPM if necessary.
G Check oil pressure gauge immediately after engine starts If oil
pressure is not within specified range (see SPECIFICATIONS),
stop engine immediately and determine cause.
H If engine is cold, run engine for 1 or 2 minutes at fast idle
(1000-1500 RPM).
I After engine has warmed up, check water temperature gauge to
ensure that engine temperature is not abnormally high. If it is, stop
engine immediately and determine cause.
J Be sure charging system is functioning correctly.
K Observe power package for fuel, oil, water and exhaust leaks.
L To shift drive unit, return control/throttle lever to NEUTRAL. Move
control/shift lever with a firm, quick motion forward to shift to FOR-
WARD gear, or backward to shift to REVERSE. After shifting drive
unit, advance throttle to desired setting.
M Move control/shift lever to NEUTRAL and allow engine to drop to
IDLE speed. If engine has been run at high speed for a long period
of time, allow engine to cool by running at IDLE speed for 3 to 5
minutes.
N Turn ignition key to OFF.

CB13
IMPORTANT: Starting procedure if engine is shut-off or stops
with drive unit in gear. 1. Pull/push remote control handle to
neutral-lock position (it will be necessary to exert force to move
handle).
2. Turn key to start position, momentarily, to release clutch from
gear.
3. Resume normal starting procedure.

45
CA41
Operation Chart
BEFORE AFTER WHILE AFTER
STARTING STARTING UNDERWAY STOPPING
Open engine Observe all Observe all Turn ignition
hatch. gauges to gauges to key OFF.
check monitor
condition of engine
engine. If not condition.
normal, stop
engine.
Turn battery Check for Turn bat-
switch ON, if so fuel, oil, wa- tery switch
equipped. ter, fluid and OFF, if so
exhaust equipped.
leaks, etc.
Operate bilge Check shift Close fuel
blowers, if so and throttle valve.
equipped. control op-
eration.

Open fuel Check Close sea-

shutoff valve. steering cock, if so
operation equipped.
Open Flush cool-
seacock, if so ing system
equipped. if in saltwa-
ter area.
Place drive
unit in full
down/in
position.
Perform all
other checks
specified by
your dealer
and\or boat
builder.

46
CA261
Specifications
Fuel Recommendations
IMPORTANT: Use of improper gasoline can damage your en-
gine seriously. Engine damage resulting from use of improper
gasoline is considered misuse of engine, and damage caused
thereby will not be covered under the limited warranty.
FUEL RATINGS
MerCruiser engines will operate satisfactorily when using a major
brand of unleaded gasoline as follows:
USA and Canada - having a posted pump Octane Rating of
87 (R+M)/2 minimum. Premium gasoline [92 (R+M)/2 Octane] is
also acceptable. DO NOT use leaded gasoline.
Outside USA and Canada - having a posted pump Octane Rating
of 90 RON minimum. Premium gasoline (98 RON) is also accept-
able. If unleaded gasoline is not available, use a major brand of
leaded gasoline.
CA291
USING REFORMULATED (OXYGENATED) GASOLINES
(USA ONLY)
This type of gasoline is required in certain areas of the USA. The two
types of “oxygenates” used in these fuels is Alcohol (Ethanol) or
Ether (MTBE or ETBE). If Ethanol is the “oxygenate” that is used in
the gasoline in your area, refer to “Gasolines Containing Alcohol”
also.
These “Reformulated Gasolines” are acceptable for use in your Mer-
Cruiser engine.
CA277
GASOLINES CONTAINING ALCOHOL
If the gasoline in your area contains either “methanol” (methyl alco-
hol) or “ethanol” (ethyl alcohol), you should be aware of certain ad-
verse effects that can occur. These adverse effects are more severe
with “methanol”. Increasing the percentage of alcohol in the fuel can
also worsen these adverse effects.
Some of these adverse effects are caused because the alcohol in the
gasoline can absorb moisture from the air, resulting in a separation
of the water/alcohol from the gasoline in the fuel tank.
47
The fuel system components on your MerCruiser engine will with-
stand up to 10% alcohol content in the gasoline. We do not know
what percentage your boat’s fuel system will withstand. Contact your
boat manufacturer for specific recommendations on the boats fuel
system components (fuel tanks,fuel lines, and fittings). Be aware that
gasolines containing alcohol may cause increased:
• Corrosion of metal parts.
• Deterioration of rubber or plastic parts.
• Fuel permeation through rubber fuel lines.
• Starting and operating difficulties.

! WARNING
FIRE AND EXPLOSION HAZARD: Fuel leakage from any part of
fuel system can be a fire and explosion hazard which can cause
serious bodily injury or death. Careful periodic inspection of en-
tire fuel system is mandatory, particularly after storage. All fuel
components including fuel tanks, whether plastic metal or fi-
berglass, fuel lines, fittings, fuel filters and carburetors/fuel in-
jection components should be inspected for leakage, soften-
ing, hardening, swelling or corrosion. Any sign of leakage or
deterioration requires replacement before further engine oper-
ation.
Because of possible adverse effects of alcohol in gasoline, it is rec-
ommended that only alcohol-free gasoline be used where possible.
If only fuel containing alcohol is available, or if the presence of alco-
hol is unknown, increased inspection frequency for leaks and abnor-
malities is required.
IMPORTANT: When operating a MerCruiser engine on gasoline
containing alcohol, storage of gasoline in the fuel tank for long
periods should be avoided. Long periods of storage, common
to boats, create unique problems. In cars alcohol-blend fuels
normally are consumed before they can absorb enough mois-
ture to cause trouble, but boats often sit idle long enough for
phase separation to take place. In addition, internal corrosion
may take place during storage if alcohol has washed protective
oil films from internal components.

48
Quicksilver Gasoline Stabilizer for Marine Engines (92-817529A12)
is highly recommended for addition during storage periods. See
“Cold Weather or Extended Storage” later in this manual.

CA43
Crankcase Oil
To help obtain optimum engine performance and to provide maxi-
mum protection, we strongly recommend the use of Quicksilver
4-Cycle Marine Engine Oil. If not available, a good grade, straight
weight, detergent automotive oil of correct viscosity, with an API clas-
sification of CD or SG, may be used.
The chart below is a guide to crankcase oil selection. Oil filter should
always be changed with oil.
In those areas where recommended straight weight oil is not avail-
able, a multiviscosity 20W-40 (SG or CD) or, as a second but less
preferable choice, 20W-50 (SG or CD) may be used.
IMPORTANT: The use of non-detergent oils, multi-viscosity
oils (other than 20W-40 or 20W-50), low quality oils or oils which
contain solid additives, are specifically not recommended.

Quicksilver 4-Cycle Marine Engine Oil

SAE 40W, SG or CD

SAE 30W, SG or CD

SAE 20W, SG or CD

32° F 50° F
0° C 10° C 70534

AIR TEMPERATURE

49
CB175

Engine Specifications
MODEL 7.4L Bravo Three
Propshaft Horsepower 1 300
Propshaft Kilowatts 1 224
454 C.I.D.
Displacement
(7.4 L)
Engine Type V8

Bore 4.25 in.

(108mm)

Stroke 4.00 in.

(101.6mm)
Compression Ratio 8.6:1

Compression Pressure 150 psi

(1035 kPa)
Maximum RPM @ 4200-4600 RPM
WOT
Idle RPM in 650 RPM 2
Forward Gear
Fuel Pump Pressure 3-7 psi (21-48 kPa)
Oil Pressure @ 30-70 psi
2000 RPM (207-483 kPa)
Min. Oil Pressure 4 psi (28 kPa)
@ Idle
Thermostat 160° F (71° C)

1 Power Rated in Accordance with NMMA procedure using Marine Engine Rating Code
SAE J1228 (Technically Identical to ISO 3046 and ICOMIA 28-83).

2 A special procedure must be followed for adjusting idle RPM in Neutral. Consult your Autho-
rized MerCruiser Dealer before adjusting idle speed.

50
CB391
Tune-Up Specifications
MODEL 7.4L Bravo Three
Spark Plug Type AC-MR43T or
Champion RV15YC4 or NGK BR6FS
Spark Plug Gap .035 in. (.9mm)

Timing @ Idle RPM 10° BTDC 1

Firing Order 1-8-4-3-6-5-7-2

Electrical System 12-Volt Negative (-) Ground

Alternator 55 Amps

Recommended Minimum
Battery 450 cca, 575
Rating mca or 90Ah

1A special procedure must be followed to check or adjust Timing. Consult your

Authorized MerCruiser Dealer before attempting this procedure.

51
CB19

Capacities
MODEL 7.4L Bravo Three
Crankcase Oil
7 U.S. Qts.
Capacity
(6.6 L)
w/New Filter
Drive Unit Oil
Capacity 3 U.S. Qts. (2.9 L)
(w/Reservoir)
Seawater Cooling 20 U.S. Qts.
System 2 (18.9 L)
Closed Cooling 28 U.S. Qts.
System (26.5 L)

1 Always use dipstick to determine exact quantity of oil required.

2 Seawater Cooling System capacity information is for winterization use only.

52
CA290
Maintenance

! WARNING
Always disconnect battery cables from battery before working
around electrical system components to prevent injury to your-
self or damage to electrical system.

IMPORTANT: Refer to MAINTENANCE CHART for complete

listing of all scheduled maintenance to be performed. Some list-
ings can be done by owner/operator, while others should be
performed by an Authorized MerCruiser Dealer. Before attempt-
ing maintenance or repair procedures not covered in this manu-
al, it is recommended that a MerCruiser Service Manual(s) be
purchased and read thoroughly.
NOTE: Maintenance points are color coded for ease of identifica-
tion. See the decal on engine for identification.

Maintenance Aids
1 Power Steering System - Quicksilver Power Trim and Steering
Fluid or Dexron III automatic transmission fluid (ATF).
2 All Pivot Points - SAE 30W motor oil.
3 Fogging (Winterizing) Engine - Quicksilver Storage Seal or SAE
20W motor oil.
4 Exposed portion of Steering Cable and Propeller Shaft - Quicksil-
ver Special Lubricant 101.
5 Stern Drive Unit - Quicksilver High Performance Gear Lube.
6 Gimbal Bearing - Quicksilver U-Joint and Gimbal Bearing Grease.
7 All Exterior Surfaces - Quicksilver Primer and Spray Paint and
Quicksilver Corrosion Guard.
8 Power Trim System - Quicksilver Power Trim and Steering Fluid,
or SAE 10W-30 motor oil.
(Continued on next page)

53
9 Crankcase Oil - Quicksilver 4-Cycle Marine Engine Oil (Refer to
SPECIFICATIONS for alternatives and oil recommendations for va-
rying ambient temperatures.)
10 Closed Cooling System Coolant - 50/50 mixture of ethylene glycol
antifreeze (must meet GM specification 1825 M) and tap water.
Areas where temperatures generally do not go below 32° F (0° C),
rust inhibitor and tap water is acceptable.
11 Gasoline Stabilizer - Quicksilver Gasoline Stabilizer for Marine
Engines.
12 Grease Fittings on Drive Shaft Extension Models - Quicksilver
U-Joint and Gimbal Bearing Grease.

54
CB26
Maintenance Chart
Only perform maintenance which applies to your particular
power package.
SCHEDULED MAINTENANCE TO BE PERFORMED
BY OWNER/OPERATOR

TASK INTERVAL
Engine Crankcase Oil -
Check level
Closed Cooling Coolant -
Check level
Power Steering Fluid -
Check level
Stern Drive Unit Oil -
Check level
Battery - Check level
and inspect for damage Weekly
Fuel Pump Sight Tube -
Check that no fuel
is present
Power Trim Pump Oil -
Check level
Anodes - Inspect for
erosion
Gear Housing Water
Pickups - Check for ma-
rine growth or debris

55
CB27
Only perform maintenance which applies to your particular
power package.
SCHEDULED MAINTENANCE TO BE PERFORMED
BY OWNER/OPERATOR

TASK INTERVAL
Drive Belts (All) -
Every 100 Hours of Operation or
Inspect condition and
120 Days, Whichever Occurs First.
check tension
Propeller Shaft - Saltwater use: Every 50 Hours of
Lubricate Operation or 60 Days, Whichever
Power Package Occurs First.
Exterior Surfaces - Freshwater use: Every 100 Hours
Spray with rust of Operation or 120 Days, Whichever
preventative Occurs First.
Power Package
Exterior Surfaces - Once a Year
Clean and paint
Cooling System -
Saltwater use: After Each Use
Flush seawater
section

56
CB258
Only perform maintenance which applies to your particular
power package.
SCHEDULED MAINTENANCE TO BE PERFORMED BY DEALER

TASK INTERVAL
20-Hour Checkup (See At First 20 Hours of Operation
NOTE 1)
Seawater Pickup Pump Whenever Insufficient Seawater Flow
-Disassemble and is Suspected. (If Operating Tempera-
Inspect ture Exceeds Normal Range)
Crankcase Oil and
Filter - Change
Ignition System - Clean
and inspect condition
Flame Arrestor and
Crankcase Ventilation
Hose - Clean
and inspect
Stern Drive unit Oil -
Change
Gimbal Ring Clamping
Screws - Retorque to
50-55 lb.ft. (67-74 N⋅m)
Every 100 Hours of Operation or
Gimbal Bearing - Once Yearly, Whichever Occurs
Lubricate First.
Closed Cooling System
Pressure Cap - Clean,
Inspect, and Test
Rear Engine Mounts -
Check torque to
35-40 lb.ft. (47-54 N⋅m)
NOTE 1: See “IMPORTANT INFORMATION” for a list of 20-Hour Checkup maintenance.

57
CB29
Only perform maintenance which applies to your particular
power package.
SCHEDULED MAINTENANCE TO BE PERFORMED BY DEALER

TASK INTERVAL
Engine Alignment -
Check
Every 100 Hours of Operation or
Engine Coupling, Once Yearly, Whichever Occurs
Universal Joint Shaft First.
Splines - Lubricate
Universal Joint Cross Every 200 Hours of Operation or
Bearings - Inspect Once Yearly, Whichever Occurs
First.
Steering System - Lu-
bricate and inspect for
loose, damaged or
missing parts
Electrical System -
Check for loose or
damaged wiring
Cooling System Hoses
and Clamps - Inspect for Saltwater use: Every 50 Hours of
damage and deteriora- Operation or 60 Days, Whichever
tion. Check clamps for Occurs First
tightness Freshwater use: Every 100 Hours
of Operation or 120 Days, Whichev-
Continuity Circuit - er Occurs First.
Check components for
loose connections, bro-
ken or frayed wires
Shift and Throttle Cable
and Linkage - Lubricate
and inspect for loose,
damaged or missing
parts

58
CB254
Only perform maintenance which applies to your particular
power package.
SCHEDULED MAINTENANCE TO BE PERFORMED BY DEALER

TASK INTERVAL
Engine Exhaust System- Saltwater use: Every 50 Hours of
Inspect for external Operation or 60 Days, Whichever
damage,deterioration Occurs First
and restrictions. Check Freshwater use: Every 100 Hours
clamps for tightness . of Operation or 120 Days, Whichev-
er Occurs First.
Ignition System -
Check timing and
adjust if needed
Fuel filters - Replace
Steering Head and
Remote Control -
Inspect and lubricate
Quicksilver
MerCathode System -
Test output
Closed Cooling Once a Year
Coolant - Test for
alkalinity
Heat Exchanger -
Clean seawater section
Carburetor - Inspect
and adjust
Drive Unit Bellows and
Clamps - Inspect
Closed Cooling Coolant
Every Two Years
- Replace

59
CB33

3 71451 2 70543 1 70542

6
71773

70548

5 70547
4 70546 70545

60
CA54
Checking Fluid Levels
CHECKING CRANKCASE OIL
Stop engine. Allow approximately five minutes for oil to drain into oil
pan. Boat must be at rest in water.
1 Remove dipstick. Wipe clean and reinstall fully into dipstick tube.
2 Remove dipstick and observe oil level. Oil level must be between
FULL and ADD. If oil level is below ADD:
3 Remove oil filler cap. Add specified oil to bring level up to, but not
over, FULL mark on dipstick.
IMPORTANT: Do not overfill crankcase oil.
CA55
CHECKING POWER STEERING PUMP FLUID
Stop engine and position drive unit Straight back.
4 Remove FILLCAP/DIPSTICK and observe level. Add specified
fluid if required. Reinstall FILLCAP/DIPSTICK.
IMPORTANT: If fluid is not visible in pump, contact your Autho-
rized MerCruiser Dealer.
CA56
CHECKING ENGINE COOLANT - CLOSED COOLED
MODELS ONLY

! WARNING
Do not remove coolant cap when engine is hot Coolant may dis-
charge violently.

5 Check coolant level in coolant recovery bottle. Add specified cool-

ant as required.
6 Periodically remove cap from coolant reservoir to ensure that
coolant recovery system is functioning properly. Coolant level must
be at top of reservoir filler neck. If coolant is low, inspect gasket in cap
for damage and replace if necessary. To have cap tested, contact
your Authorized MerCruiser Dealer. Inspect coolant recovery system
for leaks.

61
CB207

1 71987

71773

A
B

2 70979
2 70551

62
CB40
CHECKING DRIVE UNIT OIL
1 Check gear lube monitor oil level; keep oil level at or near “Fill”
line. Check for water at bottom of monitor and/or if oil appears a milk-
tan, contact your Authorized MerCruiser Dealer immediately; both
conditions indicate a water leak somewhere in the drive unit. See
“Filling Reservoir.”
IMPORTANT: If more than 2 fl. oz. (59ml) of Quicksilver High
Performance Gear Lube is required to fill monitor, a seal may be
leaking. Damage to drive unit may occur due to lack of lubrica-
tion. Contact your Authorized MerCruiser Dealer for service.
CB41
CHECKING POWER TRIM PUMP FLUID
Place drive unit in full down/in position.
2 Remove fill cap from reservoir and observe oil level. Level must
be up to, but not over bottom of filler neck. Add Quicksilver Power
Trim and Steering Fluid or SAE 10W-30 motor oil, if required, to bring
level to bottom of filler neck. Replace cap.
A Check that “Cap plug” has been removed and discarded from
filler neck.
B Fill cap is vented; frequently check that vent is open and unre-
stricted.

63
CB43

3 71451 2 70572 1 70571

71773

64
CA63
Changing Fluids
See MAINTENANCE CHART for lubricant change frequency. Lubri-
cant should be changed before placing boat in storage.
Power Trim or Power Steering fluids do not require changing.
Coolant in closed cooling system should be changed at specified in-
tervals by your Authorized MerCruiser Dealer.

CHANGING CRANKCASE OIL AND FILTER

IMPORTANT: Change oil when engine is warm from operation.

Warm oil flows more freely, carrying away more impurities. Use
only recommended motor oil (see SPECIFICATIONS).

1 With engine at normal operating temperature, remove dipstick. In-

stall Quicksilver Crankcase Oil Pump onto dipstick tube.
Insert hose end of crankcase oil pump into an appropriate container
and using pump handle, pump until crankcase is empty. Remove
crankcase oil pump.
2 Turn oil filter counterclockwise (to left); remove and discard old oil
filter and old sealing ring.
Coat sealing ring on new filter with motor oil. Install new sealing ring
and filter by turning clockwise (to right). Tighten filter securely. Do not
overtighten.
3 Remove oil filler cap. Add correct type oil (see SPECIFICATIONS)
to bring level up to, but not over FULL mark on dipstick.

IMPORTANT: Always use dipstick to determine exactly how

much oil is required.

65
CB46

3 71987

71773

2 70570
1 72522

66
CB49
CHANGING DRIVE UNIT OIL

IMPORTANT: Use only Quicksilver High Performance Gear

Lube in drive unit.

1 Place drive unit in full trim limit (out) position, remove OIL FILL/
DRAIN SCREW and sealing washer.
2 Remove OIL VENT screw and sealing washer. Allow oil to drain
completely.

IMPORTANT: If any water drained from OIL FILL/DRAIN hole, or

if oil appears milky tan, drive unit is leaking and should be
checked immediately by your Authorized MerCruiser Dealer.

Lower drive unit so anti-ventilation plate is level. Fill drive unit,

through OIL FILL/DRAIN hole, with Specified Gear Lube until an air–
free stream of lubricant flows from OIL VENT hole.
Remove tube from OIL FILL/DRAIN hole. Quickly install sealing
washer and OIL FILL/DRAIN screw. Tighten securely.
3 Fill gear lube monitor with Specified Gear Lube. When oil starts
to run out the vent hole (Monitor circuit completely filled), reinstall
vent plug and seal, and tighten securely.
4 Fill monitor to “FILL” mark. Lubricate O-ring on monitor neck with
stern drive oil, to ensure ease of installation and removal of cap; in-
stall cap, do not over tighten.
5 Recheck oil level after first use.

IMPORTANT: Oil level in monitor will rise and fall during drive
operation; always check oil level when drive is cool and engine
is shut down.

67
CB79

1 70573

71773

71169 2

68
CB82
Water Separating Fuel Filter

! WARNING
Be careful when changing water separating fuel filter. Gasoline
is extremely flammable and highly explosive under certain con-
ditions. Be sure ignition key is OFF. Do not smoke or allow spark
or open flame in area when changing fuel filter. Wipe up any
spilled fuel immediately.

1 Remove water separating fuel filter (by turning counterclockwise)

and sealing ring(s) (two rings on older style filters - one ring on newer
style filter) from mounting bracket and discard.
Coat sealing rings on new filter with motor oil. Thread filter clockwise
onto bracket and tighten securely by hand. Do not use a filter wrench.
Start and run engine. Check filter connection for gasoline leaks. If
leaks exist, recheck filter installation. lf leaks continue, stop engine
immediately and contact your Authorized MerCruiser Dealer.

! WARNING
Make sure no leaks exist before closing engine hatch.

CB85
Fuel Pump Sight Tube Inspection
2 The engine fuel pump is equipped with a sight tube which gives
visible evidence of a ruptured fuel pump diaphragm.
If fuel is visible in tube, fuel pump should be replaced by your
Authorized MerCruiser Dealer immediately.

69
CB177

1 3
71903 71904

71901

5
4

70556 71359

70
CA286
Lubrication
STEERING SYSTEM
1 If Steering Cable Has Grease Fittings: With cable fully retracted
into cable housing, lubricate fitting with 2-4-C Marine Lubricant with
Teflon.

! WARNING
Do not grease steering cable while extended. Hydraulic lock
could occur and cause loss of steering control.

NOTE: If steering cable does not have grease fitting, inner wire of
cable cannot be greased.

2 With steering cable fully extended lubricate exposed part of cable

with Special Lubricant 101.
3 Lubricate steering system pivot points with SAE 30W motor oil.
On dual engine boats, lubricate all pivot points, including tie bar pivot
points, with SAE 30W motor oil.

CA72
Shift Cable
4 Lubricate pivot points with SAE 30W motor oil.

CA73
Throttle Cable
5 Lubricate pivot points with SAE 30W motor oil.

71
CB389

8
6 70558 70559

72
CB372
DRIVE UNIT AND TRANSOM ASSEMBLY
6 Lubricate gimbal bearing with Quicksilver U-joint and Gimbal
Bearing Grease.
7 For propeller shaft lubrication, see PROPELLER.

NOTE: Engine coupling and shaft splines are greased with Quicksil-
ver Engine Coupler Spline Grease, P/N 92-816391A4; universal
joints are greased with Quicksilver U-joint and Gimbal Bearing
Grease. Contact your Authorized MerCruiser Dealer for this service.

IMPORTANT: Stern drive must be removed to lubricate U-

joints. Contact your authorized MerCruiser dealer for this ser-
vice.

! CAUTION
Speedometer water hose must be disconnected from drive unit
BEFORE removing drive unit. Failure to do this will result in a
broken fitting if drive unit is removed.

CB56
ENGINE COUPLER
8 Lubricate engine coupler splines with Quicksilver Engine Coupler
Spline Grease P/N 92-816391A4.

73
CB373

4
2

72239

74
CA77
Propeller

! WARNING
Remote Control must be in NEUTRAL and ignition key removed
from switch before removing and/or installing propeller.

! WARNING
Place a block of wood between anti-ventilation plate and propel-
ler to protect hands from propeller blades and to prevent pro-
peller from rotating when removing propeller nut.

! CAUTION
Periodically check propeller nut for tightness during boating
season. A minimum of 55 lbs. ft. (75 N⋅m) torque is required.

CB157
REMOVAL (BRAVO THREE)
1 Place wood block between propeller blades and anti-ventilation
plate to prevent rotation.
2 Turn aft propeller shaft nut counterclockwise to remove nut.
3 Slide propeller and thrust hub off propeller shaft.
4 Turn front propeller shaft nut counterclockwise to remove nut.
5 Slide propeller and thrust hub off propeller shaft.

CA79
REPAIR
Some damaged propellers can be repaired. See your dealer.

75
CB150

6
7
8
9
10
11 12

72239

76
CB345
INSTALLATION (BRAVO THREE)
6 Apply a liberal coat of one of the following Quicksilver lubricants
to both propeller shafts: Special Lubricant 101, 2-4-C Marine Lubri-
cant with Teflon, or Anti-Corrosion Grease.
7 Slide forward thrust hub onto propeller shaft, with tappered side
toward propeller hub (Toward end of shaft).
8 Align splines and place propeller on propeller shaft.
9 Install propeller nut. Tighten nut securely. A minimum of 100 lbs.
ft. (136 N·m) torque is required. Check propeller at least after 20
hours of operation. Do not operate with loose propeller.
10 Slide aft thrust hub onto propeller shaft, with tappered side toward
propeller hub (Toward end of shaft).
11 Align splines and place propeller on propeller shaft.
12 Install propeller nut. Tighten nut securely. A minimum of 60 lbs. ft.
(81 N·m) torque is required. Check propeller at least after 20 hours
of operation. Do not operate with loose propeller.

77
CB64

2 70565
1

3 71353
70564

4 71170

78
CB65
Flushing Cooling System
! WARNING
When flushing, be certain the area around propeller is clear, and
no one is standing nearby. To avoid possible injury, remove pro-
peller.

! CAUTION
Do not run engine above 1500 RPM when flushing. Suction
created by seawater pickup pump may collapse flushing hose,
causing engine and/or drive unit to overheat.

! CAUTION
Watch temperature gauge on dash to ensure that engine does
not overheat.
To prevent silt and/or salt buildup in cooling system, flush with fresh-
water at specified intervals.
If flushing cooling system with boat in water, raise drive unit to TRAIL-
ER position, install flushing attachment and lower drive unit to full
down/in position.
1 Install Quicksilver flushing attachment (or equivalent) over water
intake openings in gear housing.
2 Connect hose between flushing attachment and water tap.
3 With drive unit in normal operating position, partially open water
tap (about 1/2 maximum). Place remote control in NEUTRAL, idle
speed position and start engine. Operate engine at idle speed, in
NEUTRAL, for about 10 minutes, or until discharge water is clear.
Stop engine, shut off water and remove flushing attachment.

CB66
Seawater Pump Impeller Inspection
This maintenance should be performed by an Authorized MerCruiser
Dealer.
4 Seawater pump impeller should be inspected whenever insuffi-
cient seawater flow is suspected (if operating temperature exceeds
normal range).

79
CB68

5
70566

70567

80
CB71
Cleaning Seawater (Raw Water) Section Of Heat
Exchanger And Oil/Power Steering Cooler -
Closed Cooling Models Only
Seawater sections of heat exchanger and oil/power steering cooler
should be cleaned at least once a year or whenever decreased cool-
ing efficiency is noticed.
HEAT EXCHANGER
5 Remove end plate(s), O-rings and gaskets. Inspect O-rings and
gaskets for deterioration and replace if necessary. Install gaskets, O-
rings and end plates. Tighten screws securely.
OIL COOLER/POWER STEERING COOLER
6 Remove end plates and gaskets. Inspect gaskets for deterioration
and replace if necessary. Install gaskets and end plates. Tighten
screws securely.
Start engine and inspect cooling system for leaks.

81
CB75

70562

3
1
70353

70351

70351

70563

82
CB77
Drive Belts

! WARNING
Make sure engine is shut off and ignition key is removed before
inspecting belts.

All drive belts must be periodically inspected for condition and ten-
sion.
Perform the following inspections of alternator drive belt, power
steering pump drive belt (if so equipped) and seawater pickup pump
drive belt.
If any drive belts need replacement or tension needs adjustment, see
your Authorized MerCruiser Dealer.
1 Alternator Drive Belt - Inspect drive belt for excessive wear or
damage.
2 Check belt tension by depressing upper strand of belt at point
shown. Belt should depress 1/2 in. (13mm).
3 Power Steering Pump Drive Belt - Inspect drive belt for excessive
wear or damage.
4 Check belt tension by depressing upper strand of belt at point
shown. Belt should depress 1/4 in. (6mm).
5 Seawater/Fuel Pump (Combination) - Inspect drive belt for exces-
sive wear or damage.
6 Check belt tension by depressing upper strand of belt at point
shown. Belt should depress 1/4 in. (6mm).

83
CB88

1 70575 3 70577

2 70578

84
CB383
Corrosion And Corrosion Protection
Whenever two or more dissimilar metals (like those found on the
stern drive) are submerged in a conductive solution, such as saltwa-
ter, polluted water, or water with a high mineral content, a chemical
reaction takes place causing electrical current to flow between met-
als. The electrical current flow causes the metal that is most chemi-
cally active, or anodic, to erode. This is known as galvanic corrosion
and, if not controlled, it will in time cause the need for replacement
of power package components exposed to water.

IMPORTANT: Replace sacrificial anodes if eroded 50% or more.

1 Anodic Plate - serves as a sacrificial anode. Unscrew both at-

taching screws and remove. Install a new anodic plate and tighten
securely.
2 MerCathode System - System should be tested to ensure ade-
quate output.
Test should be made where boat is moored, using Quicksilver Refer-
ence Electrode and Test Meter. Contact your Authorized MerCruiser
Dealer to arrange for this test.
3 Anode Kit (if so equipped) - Mounted to boat transom. Acts as
a sacrificial anode. Replace as required.

85
CB384
1

71966

2A

2B

71804

72029
2B

86
CA163
1 Trim Cylinder Anodes - are mounted on each trim cylinder. To
replace the trim cylinder anodes:
A Remove two screws from each anode.
B Install new anodes and tighten securely.

CB329
NOTE: Bravo Three Models may be equipped with one or two pro-
peller anodes.
2 Propeller Anodes (Bravo Three Model) - are located in the
splash plate, just above the propellers. To replace the propeller
anodes:
A Remove the bolts that secure the anodes to the splash plate.
B Install new anodes and tighten securely.

87
CB392

2 74631
3

88
CA168
In addition to the corrosion protection devices, the following steps
should be taken to inhibit corrosion:
IMPORTANT: Corrosion damage that results from the improper
application of anti-fouling paint will not be covered by the lim-
ited warranty.
1 Painting Boat Hull or Boat Transom: Antifouling paint may be
applied to boat hull and boat transom but you must observe the fol-
lowing precautions:
IMPORTANT: DO NOT paint anodes or MerCathode System ref-
erence electrode and anode, as this will render them ineffective
as galvanic corrosion inhibitors.
IMPORTANT: If anti-fouling protection is required for boat hull
or boat transom, copper or tin base paints, if not prohibited by
law, can be used. If using copper or tin based anti-fouling
paints, observe the following:
2 Avoid any electrical interconnection between the MerCruiser
Product, Anodic Blocks, or MerCathode System and the paint
by allowing a minimum of 1-1/2 in. (40mm) UNPAINTED area on
transom of the boat around these items.
3 Painting Drive Unit or Transom Assembly: Drive unit and tran-
som assembly should be painted with a good quality marine paint or
an anti-fouling paint that DOES NOT contain copper, tin, or any other
material that could conduct electrical current. Do not paint drain
holes, anodes, MerCathode system, and items specified by boat
manufacturer.
4 Spray power package components on inside of boat every 2-3
weeks with Quicksilver Corrosion Guard to protect finish from dulling
and corrosion. External power package components may also be
sprayed.
5 All lubrication points, especially steering system, shift and throttle
linkages, should be kept well lubricated.
6 Flush cooling system periodically, preferably after each use.

89
CA103
Miscellaneous Maintenance
Battery
All lead acid batteries discharge when not in use. Recharge every 30
to 45 days, or when specific gravity drops below battery manufactur-
er’s specifications.
Refer to specific instructions and warnings accompanying your bat-
tery. If this information is not available, observe the following precau-
tions when handling a battery.

! WARNING
Do not use jumper cables and a booster battery to start engine.
Do not recharge a weak battery in the boat. Remove battery and
recharge in a ventilated area away from fuel vapors, sparks or
flames.

! WARNING
Batteries contain acid which can cause severe burns-Avoid
contact with skin, eyes and clothing. Batteries also produce hy-
drogen and oxygen gases when being charged. This explosive
gas escapes fill/vent cell caps and may form an explosive atmo-
sphere around the battery for several hours after it has been
charged. Sparks or flames can ignite the gas and cause an ex-
plosion which may shatter the battery and could cause blind-
ness or other serious injury.
Safety glasses and rubber gloves are recommended when han-
dling batteries or filling with electrolyte. Hydrogen gases that
escape from the battery during charging are explosive. When
charging batteries, be sure battery compartment or area where
batteries are located, is well-vented. Battery electrolyte is a cor-
rosive acid and should be handled with care. If electrolyte is
spilled or splashed on any part of the body, immediately flush
the exposed area with liberal amounts of water and obtain medi-
cal aid as soon as possible.

90
CA104
Bottom Of Boat
To maintain maximum speed, the following conditions of the boat bot-
tom should be observed:
• Clean, free of barnacles and marine growth.
• Free of distortion, nearly flat where it contacts water.
• Straight and smooth, fore and aft.
ANTIFOULING PAINTS
See Antifouling Paint recommendations and related information on
previous pages.
IMPORTANT: Refer to CORROSION AND CORROSION PRO-
TECTION for additional information.

CA105
Inspection And Maintenance
Inspect power package often, and at regular intervals, to help main-
tain its top operating performance, and correct potential problems
before they occur. The entire power package should be checked
carefully, including all accessible engine parts.
Check for loose, damaged or missing parts, hoses and clamps; tight-
en or replace as required.
Check plug leads and electrical leads for damage.
Remove and inspect propeller. If badly nicked, bent or cracked, see
your dealer.
Repair nicks and corrosion damage on power package exterior fin-
ish. Use Quicksilver spray paints - see your Authorized MerCruiser
Dealer.

91
CA278
Cold Weather Or Extended
Storage
Power Package Lay Up
IMPORTANT: This service should be performed by an Autho-
rized MerCruiser Dealer.

! CAUTION
DO NOT operate engine without water flowing thru seawater
pickup pump, as pump impeller may be damaged and subse-
quent overheating damage to engine or stern drive unit may re-
sult.

IMPORTANT: Before starting engine, a water source must be

attached to the seawater intake openings in gear housing. Fol-
low all warnings, and flushing attachments procedures stated,
in “FLUSHING COOLING SYSTEM.”
1 Run engine sufficiently to bring it up to normal operating tempera-
ture. Shut off engine and change oil and oil filter.
2 Flush cooling system.

! WARNING
Be sure engine compartment is well ventilated and no gasoline
vapors are present during the following operation - to prevent
a potential fire hazard.

92
3 Remove flame arrestor and restart engine. While operating en-
gine at fast idle (1000-1500 RPM), fog internal surfaces of engine by
squirting approximately 8 ounces (227 g) of Quicksilver Storage Seal
(or if not available, SAE 20W motor oil) into carburetor bores. Stall
engine by squirting last 2 ounces (57 g) of Storage Seal (or oil) rapidly
into carburetor. Turn ignition key to OFF position.
4 Fill fuel tank(s) with fresh gasoline (that does not contain alcohol)
and a sufficient amount of Quicksilver Gasoline Stabilizer for Marine
Engines to treat gasoline. Follow instructions on container.
5 If boat is to be placed in storage (with fuel containing alcohol in fuel
tanks), carburetors must be run dry at idle RPM. Fuel tanks should
be drained completely and Quicksilver Gasoline Stabilizer for Marine
Engines added to any fuel remaining in the tank. Also, refer to FUEL
REQUIREMENTS.
6 Close fuel shutoff valve, if so equipped.

! CAUTION
Stern drive unit should be stored in full “down” position. Uni-
versal Joint bellows may develop a “set” if unit is stored in
raised position and may fail when unit is returned to service.

93
CB241

74073

94
CB242
Draining Instructions
DRAINING SEAWATER (RAW-WATER) COOLED MODELS

! CAUTION
If boat is to remain in water after draining, seawater inlet hose
must be removed and plugged to prevent a siphoning action
that may occur, allowing seawater to flow from the drain holes
or removed hoses.

IMPORTANT: Boat must be as level as possible to ensure com-

plete draining of cooling system.

! CAUTION
Seawater section of cooling system MUST BE COMPLETELY
drained for winter storage, or immediately after cold weather
use, if the possibility of freezing temperatures exist. Failure to
comply may result in trapped water causing freeze and/or corro-
sion damage to engine.

1 Ensure engine is as level as possible to ensure complete draining

of cooling system.
2 Remove drain plugs (port and stbd) from cylinder block.
3 Remove drain plugs (port and stbd) from bottom of exhaust man-
ifolds.
4 Repeatedly clean out drain holes using a stiff piece of wire. Do
this until entire system is drained.

95
CB105

71448
6 71334

7 71217

8 71758

96
CB108
Loosen hose clamps and remove the following hoses:
5 From engine circulating pump.
6 From oil/power steering fluid cooler.
7 Make sure that speedometer pitot tube, trim tab cavity vent hole,
and trim tab cavity drain passage are unobstructed.
After cooling system has been drained completely, install drain
plugs, reconnect hoses and tighten all hose clamps securely.

IMPORTANT: MerCruiser recommends that propylene glycol (a

nontoxic and environmentally safe) antifreeze be used in the
seawater section of the cooling system for cold weather or ex-
tended storage. Make sure that the propylene glycol antifreeze
contains a rust inhibitor and is recommended for use in marine
engines. Be certain to follow the propylene glycol manufactur-
er’s recommendations.

8 For additional assurance against freezing and rust, remove the

thermostat cover and thermostat. Fill the engine seawater cooling
system with a mixture of antifreeze and tap water mixed to manufac-
turer’s recommendation to protect engine to the lowest temperature
to which it will be exposed during cold weather or extended storage.
Using a new gasket, reinstall thermostat and cover. Tighten cover
bolts securely.
Perform all checks, inspections, lubrication, and fluid changes out-
lined in MAINTENANCE CHART under AT LEAST ONCE A YEAR.

97
CB111

2
70583

98
CB112
DRAINING CLOSED COOLING (COOLANT) MODELS

IMPORTANT: Drain seawater section of closed cooling system

only.

! CAUTION
If boat is to remain in water after draining seawater inlet hose
must be removed and plugged to prevent a siphoning action
that may occur allowing seawater to tow from the drain holes or
removed hoses.

IMPORTANT: Boat must be as level as possible to ensure com-

plete draining of cooling system.

! CAUTION
Seawater section of cooling system MUST BE COMPLETELY
drained for winter storage or immediately after cold weather use
if the possibility of freezing temperatures exist. Failure to com-
ply may result in trapped water causing freeze and/or corrosion
damage to engine.

IMPORTANT: Closed cooling section must be kept filled year-

round with recommended coolant. If engine will be exposed to
freezing temperatures, make sure closed cooling section is
filled with an ethylene glycol antifreeze and water solution prop-
erly mixed to protect engine to lowest temperature to which it
will be exposed.

IMPORTANT: Do not use Propylene Glycol Antifreeze in the

closed cooling section of the engine.
1 Ensure engine is as level as possible to ensure complete draining
of cooling system.
2 Remove drain plug from heat exchanger.
3 Repeatedly clean out drain hole using a stiff piece of wire. Do this
until entire system is drained.

99
CB114

71170

70584 5 70586

7
71217

100
CB117
Loosen hose clamps and remove the following hoses:
NOTE: It may be necessary to lift or bend hoses to allow water to
drain completely. Crank engine over slightly with starter motor to
purge any water trapped in seawater pickup pump. Do not allow en-
gine to start.
4 From seawater pickup pump inlet (upper hose).
5 From oil/power steering fluid cooler.
6 Disconnect “T” -Fitting-to-Heat Exchanger Hose from Heat Ex-
changer.
7 Make sure that speedometer pitot tube is unobstructed.
8 Crank engine over slightly with starter motor to purge any water
trapped in seawater pickup pump. Do not allow engine to start.
After seawater section of cooling system has been drained com-
pletely, coat threads of drain plugs with Quicksilver Perfect Seal and
reinstall. Reconnect hoses and tighten all hose clamps securely.
After draining perform all checks inspections, lubrication and fluid
changes outlined in MAINTENANCE CHART under AT LEAST
ONCE A YEAR.
Store boat with drive unit in full “down” position.

101
CA115
Battery Winter Storage
Follow battery manufacturer’s instructions for storage.
CB309
Power Package Recommissioning
! WARNING
To prevent possible injury or damage to equipment, do not in-
stall battery until all maintenance has been performed on en-
gine.
1 Check that all cooling system hoses are connected properly and
hose clamps are tight.

! CAUTION
When installing battery, be sure to connect POSITIVE (+) battery
cable to POSITIVE (+) battery terminal FIRST, and NEGATIVE (–)
battery cable to NEGATIVE (–) battery terminal LAST. It battery
cables are reversed, or connection order is reversed, electrical
system damage will result.
2 Install fully-charged battery. Clean battery cable clamps and ter-
minals and reconnect cables (see CAUTION listed above). Tighten
each cable clamp securely when connecting.
3 Coat terminal connections with a battery terminal anti-corrosion
agent.
4 Perform all checks in OPERATION CHART in the BEFORE
STARTING column.

! CAUTION
Refer to FLUSHING COOLING SYSTEM before starting engine.
5 Start engine and closely observe instrumentation to make sure
that all systems are functioning correctly.
6 Carefully inspect engine for fuel, oil, fluid, water and exhaust
leaks.
7 Check steering system, shift and throttle control for proper opera-
tion.
8 Check fuel pump sight tube for evidence of fuel (indicating a rup-
tured fuel pump diaphragm).
102
CB215
Troubleshooting
Starter Motor Will Not Crank Engine, Or Cranks
Slow
Possible Cause Remedy

• Battery switch turned off. • Turn switch on.

• Remote control not in neu- • Position control lever in
tral position. neutral.
• Open circuit breaker or • Check and reset circuit
blown fuse. breaker or replace fuse.

• Loose or dirty electrical • Check all electrical con-

connections or damaged nections and wires (espe-
wiring. cially battery cables).
Clean and tighten faulty
connection.
• Bad battery. • Test and replace if bad.

103
Engine Will Not Start, Or Is
Hard To Start

Possible Cause Remedy

• Improper starting proce- • Read starting procedure.

dure.
• Empty fuel tank or fuel • Fill tank or open valve.
shutoff valve closed.
• Faulty fuel pump. • Check sight tube for fuel.
Have Authorized Mer-
Cruiser Dealer replace
pump, if fuel is present.
• Choke not operating prop- • Check that choke is closed
erly. when engine is cold. Check
that it opens when engine
warms up.
• Engine flooded. • Do not attempt to start en-
gine for at least 5 minutes.
Refer to STARTING PRO-
CEDURES.
• Faulty ignition system com- • Service ignition system.
ponent.
• Clogged fuel filters. • Replace filters.
• Stale or contaminated fuel. • If contaminated, drain tank.
Fill with fresh fuel.
• Fuel line or tank vent line • Replace kinked lines or
kinked or clogged. blow out lines with com-
pressed air to remove ob-
struction.

104
Engine Runs Rough, Misses And/Or Backfires
Possible Cause Remedy

• Choke not operating prop- • Check that choke is closed

erly. when engine is cold. Check
that it opens when engine
warms up.
• Idle speed too low. • Check idle speed and ad-
just, if necessary.
• Faulty ignition system com- • Service ignition system.
ponent.
• Clogged fuel filters. • Replace filters.
• Stale or contaminated fuel. • If contaminated, drain tank.
Fill with fresh fuel.
• Kinked or clogged fuel line • Replace kinked line or blow
or fuel tank vent line. out line with compressed
air to remove obstruction.
• Flame arrestor plugged • Clean flame arrestor.
with foreign material.

Poor Performance
Possible Cause Remedy

• Throttle not fully open. • Inspect throttle cable and

linkages for proper opera-
tion.
• Damaged or improper pro- • Replace.
peller.
• Excessive bilge water. • Drain and check for cause
of entry.
• Boat overloaded or load • Reduce load or redistribute
improperly distributed. load more evenly.
• Boat bottom fouled or dam- • Clean or repair as neces-
aged. sary.
• Flame arrestor dirty. • Clean flame arrestor .

105
 Excessive Engine Temperature
Possible Cause Remedy

• Seacock closed. • Open.

• Drive belt loose or in poor • Replace and/or adjust belt.
condition.
• Seawater pickups ob- • Remove obstruction.
structed.
• Faulty thermostat. • Replace.
• Coolant level low in closed • Check for cause of low
cooling section (If coolant level and repair. Fill
Equipped). system with proper coolant
solution.
• Heat exchanger cores • Clean heat exchanger.
plugged with foreign mate-
rial (If Equipped).
• Loss of pressure in closed • Check for leaks. Clean, in-
cooling section (If spect and test pressure
Equipped). cap.
• Closed cooling section • Clean.
dirty (If Equipped).
• Faulty seawater pickup • Repair.
pump.
• Seawater discharge re- • Clean exhaust elbows.
stricted or plugged.

Insufficient Engine Temperature

Possible Cause Remedy

• Faulty Thermostat. • Replace.

106
 Low Engine Oil Pressure
Possible Cause Remedy

• Insufficient oil in crank- • Check and add oil.

case.
• Check and remove re-
• Excessive oil in crankcase quired amount of oil. Check
(causing it to become for cause of excessive oil
aerated). (improper filling, bad fuel
pump, etc.).
• Diluted or improper • Change oil and oil filter, us-
viscosity oil. ing correct grade and vis-
cosity oil. Determine cause
for dilution (excessive id-
ling, faulty fuel pump, etc.).

Battery Will Not Come Up On

Charge
Possible Cause Remedy

• Excessive current draw • Turn off non–essential ac-

from battery. cessories.
• Loose or dirty electrical • Check all associated elec-
connections or damaged trical connections and
wiring. wires (especially battery
cables). Clean and tighten
faulty connections. Repair
or replace damaged wiring.
• Alternator drive belt loose • Replace and/or adjust.
or in poor condition.
• Unacceptable battery • Test battery.
condition.

107
Remote Control Operates Hard, Binds, Has
Excessive Free–play Or Makes Unusual Sounds
Possible Cause Remedy

• Insufficient lubrication on • Lubricate.

shift and throttle linkage
fasteners.
• Loose or missing shift and • Check all linkages. If any
throttle linkage fasteners. are loose or missing, see
Authorized MerCruiser
Dealer immediately.
• Obstruction in shift or • Remove obstruction.
throttle linkages.
• Shift or throttle cable • Straighten cable, or have
kinked. dealer replace cable if
damaged beyond repair.

Steering Wheel Turns Hard Or Jerky

Possible Cause Remedy

• Low power steering pump • Refill system with fluid.

fluid level.
• Drive belt loose or in poor • Replace and/or adjust.
condition.
• Insufficient lubrication on • Lubricate.
steering system compo-
nents.
• Loose or missing steering • Check all parts and fasten-
fasteners or parts. ers. If any are loose or
missing, see Authorized
MerCruiser Dealer immedi-
ately.
• Contaminated power • Drain and replace.
steering fluid.

108
Power Trim Does Not Operate
(Motor Doesn’t Run)
Possible Cause Remedy

• Blown fuse. • Replace fuse.

• Loose or dirty electrical • Check all associated elec-
connections or damaged trical connections and
wiring. wires (especially battery
cables). Clean and tighten
faulty connection. Repair
or replace wiring.

Power Trim Does Not Operate (Motor Runs But

Drive Unit Does Not Move)
Possible Cause Remedy

• Trim pump oil level low. • Fill pump with oil.

• Drive unit binding in • Check for obstruction.
gimbal ring.

109
CA262
Warranty Information
Owner Warranty Registration
UNITED STATES AND CANADA ONLY
• It is important that your selling dealer fills out the Warranty Regis-
tration Card completely and mails it to the factory immediately
upon sale of the new product.
• It identifies name and address of the original purchaser, product
model and serial number(s), date of sale, type of use and selling
dealer’s code, name and address. The dealer also certifies that
you are the original purchaser and user of the product.
• Upon receipt of the Warranty Registration Card at the factory, you
will be issued a plastic Owner Warranty Registration Card which
is your only valid registration identification. It must be presented
to the servicing dealer should warranty service be required. War-
ranty claims will not be accepted without presentation of this card.
• A temporary Owner Warranty Registration Card will be presented
to you when you purchase the product. It is valid only for 30 days
from date of sale while your plastic Owner Warranty Registration
Card is being processed. Should your product need service dur-
ing this period, present the temporary registration card to the deal-
er. He will attach it to your warranty claim form.
• Because of your selling dealer’s continuing personal interest in
your satisfaction, the product should be returned to him for war-
ranty service.
• If your plastic card is not received within 30 days from date of new
product sale, please contact your selling dealer.
• The product warranty is not effective until the product is registered
at the factory.
• NOTICE: Registration lists must be maintained by factory and
dealer on marine products sold in the United States, should notifi-
cation under the Federal Boat Safety Act be required.

110
International Owner Registration
OUTSIDE THE UNITED STATES AND CANADA
• It is important that your selling dealer fills out the Warranty Regis-
tration Card completely and mails it to the distributor or Marine
Power Service Center responsible for administering the warranty
registration/claim program for your area.
• The Warranty Registration Card identifies your name and ad-
dress, product model and serial number(s), date of sale, type of
use and the selling distributor’s/dealer’s code number, name and
address. The distributor/dealer also certifies that you are the origi-
nal purchaser and user of the product.
• A copy of the Warranty Registration Card, designated as the “Pur-
chaser’s Copy”, MUST be given to you immediately after the card
has been completely filled out by the selling distributor/dealer.
This card represents your factory registration identification, and
should be retained by you for future use when required. Should
you ever require warranty service on this product, your dealer
may ask you for the Warranty Registration Card to verify date of
purchase and to use the information on the card to prepare the
warranty claim form (s).
• In some countries, the Marine Power Service Center will issue
you a permanent (plastic) Warranty Registration Card within 30
days after receiving the “Factory Copy” of the Warranty Registra-
tion Card from your distributor/dealer. If you receive a plastic War-
ranty Registration Card, you may discard the “Purchaser’s Copy”
that you received from the distributor/dealer when you purchased
the product. Ask your distributor/dealer if this plastic card program
applies to you.
• For further information concerning the Warranty Registration
Card and its relationship to Warranty Claim processing, refer to
the “International Warranty”. Refer to “Table of Contents”.
IMPORTANT: Registration lists must be maintained by the fac-
tory and dealer in some countries by law. It is our desire to have
ALL products registered at the factory should it ever be neces-
sary to contact you. Make sure your dealer/distributor fills out
the warranty registration card immediately and sends the facto-
ry copy to the Marine Power International Service Center for
your area.

111
 Warranty Policies
Mercruiser Limited Warranty - Gasoline Engines
UNITED STATES AND CANADA ONLY
I. We warrant each new production (not those made for high per-
formance purposes) MerCruiser Stern Drive Power Package,
Inboard Engine and accessories attached thereto, (hereafter
referred to as “Product”) to be free from defects in material and
workmanship, but only when the consumer sale is made in the
country to which distribution is authorized by us.
II. This warranty shall become effective only upon our receipt of
a completed Warranty Registration Card, which shall identify
the Product so registered by serial number.This warranty shall
remain in effect for a period of one (1) year from date of pur-
chase.
III. Since this warranty applies to defects in material and workman-
ship, it does not apply to normal worn parts, adjustments,
tune-ups or to damage caused by: 1) Neglect, lack of mainte-
nance, accident, abnormal operation or improper installation or
service; 2) Use of an accessory or part not manufactured or sold
by us; 3) Operation with fuels, oils or lubricants which are not
suitable for use with the Product; 4) Participating in or preparing
for racing or other competitive activity or operating with a racing
type lower unit; 5) Alteration or removal of parts; or 6) Water en-
tering engine cylinder/s through the exhaust system or carbure-
tor/s.
IV. Reasonable access must be provided to the product for warran-
ty service. This warranty will not apply to: 1) Haul-out, launch,
towing and storage charges; telephone or rental charges of any
type, inconvenience, or loss of time or income; or other conse-
quential damages; or 2) Removal and/or replacement of boat
partitions or material because of boat design for necessary ac-
cess to the Product.

112
 V. Claim shall be made under this warranty by delivering the Prod-
uct for inspection to a MerCruiser dealer authorized to service
the Purchaser’s product. If purchaser cannot deliver Product to
such authorized dealer, he may give notice in writing to the
Company. We shall then arrange for the inspection and repair,
provided such service is covered under this warranty. Purchas-
er shall pay for all related transportation charges and/or travel
time. If the service is not covered by this warranty purchaser
shall pay for all related labor and material and any other ex-
penses associated with that service. Any Product or parts
shipped by purchaser for inspection or repair must be shipped
with transportation charges prepaid. The Warranty Registration
Card is the only valid registration identification and must be
presented at the time warranty service is required. Warranty
claims will not be accepted without presentation of the Warranty
Registration Card.
VI. Our obligation under this Warranty shall be limited to repairing
a defective part, or at our option, refunding the purchase price
or replacing such part or parts as shall be necessary to remedy
any malfunction resulting from defects in material or workman-
ship as covered by this Warranty. We reserve the right to im-
prove the design of any Product without assuming any obliga-
tion to modify any Product previously manufactured.
VII. ALL INCIDENTAL AND/OR CONSEQUENTIAL DAMAGES
ARE EXCLUDED FROM THIS WARRANTY. WARRANTIES
OF MERCHANTABILITY AND FITNESS ARE EXCLUDED
FROM THIS WARRANTY. IMPLIED WARRANTIES ARE LIM-
ITED TO THE LIFE OF THIS WARRANTY. SOME STATES DO
NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED
WARRANTY LASTS OR THE EXCLUSION OR LIMITATION
OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
ABOVE LIMITATION OR EXCLUSIONS MAY NOT APPLY TO
YOU.
VIII. This warranty gives you specific legal rights, and you may also
have other legal rights which vary from state to state.

113
Mercruiser International Warranty -
Gasoline Engines
OUTSIDE THE UNITED STATES AND CANADA
I. We warrant each new production (not those made for high per-
formance purposes) MerCruiser Stern Drive Power Package,
Inboard Engine and accessories attached thereto, (hereafter
referred to as “Product”) to be free from defects in material and
workmanship, but only when the consumer sale is made in the
country to which distribution is authorized by us. This warranty
shall remain in effect for a period of one (1 ) year from date of
purchase.
II. Since this warranty applies to defects in material and workman-
ship, it does not apply to normal worn parts, adjustments,
tune-ups or to damage caused by: 1) Neglect, lack of mainte-
nance, accident, abnormal operation or improper installation or
service; 2) Use of an accessory or part not manufactured or sold
by us: 3) Operation with fuels, oils or lubricants which are not
suitable for use with the Product: 4) Participating in or preparing
for racing or other competitive activity or operating with a racing
type lower unit: or 5) Alteration or removal of parts or 6) Water
entering engine cylinder/s through exhaust system or carbure-
tor/s.
III. Reasonable access must be provided to the Product for war-
ranty service. This warranty will not apply to: 1) Haul-out,
launch, towing and storage charges telephone or rental
charges of any type, inconvenience, or loss of time or income
or other consequential damages or 2) Removal and/or replace-
ment of boat partitions or material because of boat design for
necessary access to the Product.
IV. Claim shall be made under this warranty by delivering the Prod-
uct for inspection to a MerCruiser dealer authorized to service
the Product If purchaser cannot deliver Product to such autho-
rized dealer, he may give notice in writing to the Marine Power
Service Center or distributor. The Marine Power Service Center
or distributor shall then arrange for the inspection and repair,
provided such service is covered under this warranty Purchas-
er shall pay for all related transportation charges and/or travel
time. If the service is not covered by this warranty purchaser
shall pay for all related labor and material, and any other ex-
penses associated with that service. Any Product or parts
shipped by purchaser for inspection or repair must be shipped
with transportation charges prepaid.
114
 V. Purchaser must provide “proof of purchase” and substantiate
“date of purchase” by presenting the “Purchaser’s Copy” of the
“Warranty Registration Card” or the plastic “Warranty Registra-
tion Card” to the dealer authorized to service the Product. lf ei-
ther of these items is not available purchaser must provide a
copy of the original ”Bill of Sale” (Sales Contract) for the Product
to be serviced. Warranty claims will not be accepted until ade-
quate ”proof of purchase” is presented by purchaser and ”date
of purchase” has been substantiated.
VI. Our obligation under this Warranty shall be limited to repairing
a defective part or AT OUR OPTION, refunding the purchase
price or replacing such part or parts as shall be necessary to
remedy any malfunction resulting from defects in material or
workmanship as covered by this Warranty. We reserve the right
to improve the design of any Product without assuming any obli-
gation to modify any Product previously manufactured.
VII. ALL INCIDENTAL AND/OR CONSEQUENTIAL DAMAGES
ARE EXCLUDED FROM THIS WARRANTY WARRANTIES
OF MERCHANTABILITY AND FITNESS ARE EXCLUDED
FROM THIS WARRANTY IMPLIED WARRANTIES ARE LIM-
ITED TO THE LIFE OF THIS WARRANTY SOME COUN-
TRIES DO NOT ALLOW LIMITATIONS ON HOW LONG AN
IMPLIED WARRANTY LASTS OR THE EXCLUSION OR LIMI-
TATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,
SO THE ABOVE LIMITATION OR EXCLUSIONS MAY NOT
APPLY TO YOU.
VIII. This warranty gives you specific legal rights, and you may also
have other legal rights which vary from country to country.
MARINE POWER INTERNATIONAL
Division of Brunswick Corporation
Fond du Lac, Wisconsin 54935 U.S.A.

115
 3 Year Limited Warranty Against
Corrosion Failure
(Applicable In The United States,
Canada And Australia)
I. We warrant parts and assemblies of each 1988 and newer pro-
duction MerCruiser (Product) sold with a one year limited Prod-
uct warranty or the Bravo and TRS Drive Units on performance
Products that have a 90 day limited warranty rendered inopera-
tive as a direct result of corrosion, provided the following simple
precautionary steps which are specified in Owner’s Manuals
have been taken:
1.Specified maintenance procedures (such as replacement of
sacrificial anodes, specified lubrication and touch-up of nicks
and scratches) have been implemented on a timely basis.
2.Recommended corrosion prevention devices have been
employed (details below).
II. This warranty shall become effective upon receipt of a com-
pleted standard Product warranty registration card and shall re-
main effective for a period of three years from the date of pur-
chase.
III. This warranty does not cover: (1) electrical system corrosion;
(2) corrosion resulting from damage, abuse or improper ser-
vice; (3) corrosion to accessories, instruments, steering sys-
tems; (4) damage due to marine growth; (5) Product sold with
less than a one year limited Product warranty except for Bravo
and TRS Drive Units; nor (6) Product used in commercial appli-
cation.

116
 IV. ALL INCIDENTAL AND/OR CONSEQUENTIAL DAMAGES
ARE EXCLUDED FROM THIS WARRANTY. WARRANTIES
OF MERCHANTABILITY AND FITNESS ARE EXCLUDED
FROM THIS WARRANTY. IMPLIED WARRANTIES ARE LIM-
ITED TO THE LIFE OF THIS WARRANTY. SOME STATES
(OR COUNTRIES) DO NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS OR THE EXCLU-
SION OR LIMITATION OF INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLU-
SION MAY NOT APPLY TO YOU.
V. This warranty gives you specific legal rights, and you may also
have other legal rights which vary from state to state (or country
to country).
VI. Other details of this warranty are contained in paragraphs IV,
V and VI of the (United States and Canada) Product Warranty,
and paragraphs III, IV, V and VI of the (International) Product
Warranty, contained in this manual, which paragraphs are in-
corporated herein by reference.
Mercury Marine products are built using the most advanced corro-
sion protection process available. This manufacturing system, com-
plemented by dealer and customer participation in an anti-corrosion
preventive maintenance program, provides protection against repair
costs incurred by the effects of marine corrosion.

117
OWNER’S RESPONSIBILITY
Protection against certain types of corrosion damage must be pro-
vided by using such systems as the Quicksilver MerCathode System
and/or Galvanic Isolator. These certain types of corrosion damage
are: damage due to stray electrical currents (on-shore power con-
nections, nearby boats, submerged metal), or improper application
of copper base anti-fouling paint.
If anti-fouling protection is required, Tri-Butyl-Tin-Adipate (TBTA)
base antifouling paints are recommended on MerCruiser boating
applications. In areas where Tri-Butyl-Tin-Adipate base paints are
prohibited by law, copper base paints can be used on the boat hull
and transom. Do not apply paint to the MerCruiser drive unit or tran-
som assembly. In addition, care must be taken to avoid an electrical
interconnection between the MerCruiser Product and the paint. Cor-
rosion damage that results from the improper application of copper
base paint will not be covered by this limited warranty.
TRANSFER OF WARRANTY
This Limited Warranty is transferable to subsequent purchasers for
the remainder of the unused portion of the 3-year limited warranty.

Warranty Coverage
The purpose of this section is to help eliminate some of the more
common misunderstandings regarding warranty coverage. The
table explains some of the types of services that are not covered by
warranty.
Keep in mind that warranty covers repairs that are needed within the
warranty period because of defects in material and workmanship. In-
stallation errors, accidents, normal wear, and a variety of other
causes that affect the product are not covered.
Warranty is limited to defects in material or workmanship, but only
when the consumer sale is made in the country to which distribution
is authorized by us.
Should you have any questions concerning warranty coverage, con-
tact your authorized dealer. They will be pleased to answer any ques-
tions that you may have.

118
Warranty Does Not Apply To The Following:
• Minor adjustments and tune-ups, including checking, cleaning or
adjusting spark plugs, ignition components, carburetor settings,
filters, belts, controls, and checking lubrication made in connec-
tion with normal services.
• Damage caused by neglect, lack of maintenance, accident, ab-
normal operation or improper installation or service.
• Haul-out, launch, towing charges; removal and/or replacement of
boat partitions or material because of boat design for necessary
access to the product; all related transportation charges and/or
travel time, etc. Reasonable access must be provided to the prod-
uct for warranty service. Customer must deliver product to an Au-
thorized Dealer.
• Additional service work requested by customer other than that
necessary to satisfy the warranty obligation.
• Labor performed by other than an Authorized Dealer may be cov-
ered only under following circumstances: When performed on
emergency basis (providing there are no Authorized Dealers in
area who can perform the work required or have no facilities to
haul out, etc., and prior factory approval has been given to have
the work performed at this facility).
• All incidental and/or consequential damages (storage charges,
telephone or rental charges of any type, inconvenience or loss of
time or income) are the owner’s responsibility.
• Use of other than Quicksilver replacement parts when making
warranty repairs.
• Oils, lubricants or fluids changed as a matter of normal mainte-
nance is customer’s responsibility unless loss or contamination of
same is caused by product failure that would be eligible for war-
ranty consideration.
• Participating in or preparing for racing or other competitive activ-
ity.

119
• Engine noise does not necessarily indicate a serious engine prob-
lem. If diagnosis indicates a serious internal engine condition
which could result in a failure, condition responsible for noise
should be corrected under the warranty.
• Lower unit and/or propeller damage caused by striking a sub-
merged object is considered a marine hazard.
• Water entering the engine via the carburetor or exhaust system
or submersion. Also water in the starter motor.
• Starter motors and/or armatures or field coil assembly, which are
burned, or where lead is thrown out of commutator because of ex-
cess cranking.
• Valve or valve seat grinding required because of wear.
• Failure of any parts caused by lack of cooling water, which results
from starting power package out of water, foreign material block-
ing inlets or power package being mounted too high.
• Use of fuels and lubricants which are not suitable for use with or
on the product.
• Our limited warranty does not apply to any damage to our prod-
ucts caused by the installation or use of parts and accessories
which are not manufactured or sold by us. Failures which are not
related to the use of those parts or accessories, are covered un-
der warranty, if they otherwise meet the terms of the limited war-
ranty for that product.

120
 Transferable Warranty
The product warranty is transferable to a subsequent purchaser, but
only for the remainder of the unused portion of the limited warranty.
This will not apply to products used for commercial applications.

Direct Sale By Owner

• The second owner can be registered as the new owner and retain
the unused portion of the limited warranty by sending the former
owner’s plastic Owner Warranty Registration Card and a copy of
the bill of sale to show proof of ownership. In the United States and
Canada, mail to:
Mercury Marine
Attn: Warranty Registration Department
W6250 West Pioneer Road
P.O. Box 1939
Fond du Lac, WI 54936-1939
• A new Owner Warranty Registration Card will be issued with the
new owner’s name and address. Registration records will be
changed on the factory computer registration file.
• There is no charge for this service.
Outside the United States and Canada, please contact the dis-
tributor in your country, or the Marine Power International Ser-
vice Center closest to you, for the transferable warranty proce-
dure that would apply to you.

121
 Q-guard Product Protection Plan
United States And Canada Only
(Certain performance products,triple engine installations, and com-
mercial applications are excluded)
The Mercury Marine Q-Guard Product Protection Plan provides cov-
erage against unexpected mechanical and electrical breakdowns
that may occur beyond the standard limited warranty.
The optional Q-Guard Product Protection Plan is the only Factory
Plan available for your engine.
Two, three or four - year term plans can be purchased up to 180 days
after the original engine purchase date.
See your participating MerCruiser dealer for complete program de-
tails.

122
 Owner Service Assistance
Local Repair Service
Always return your MerCruiser powered boat to your local Autho-
rized Dealer, should the need for service arise. Only he has the facto-
ry trained mechanics, knowledge, special tools and equipment and
the genuine Quicksilver parts and accessories* to properly service
your engine should the need occur. He knows your engine best.
* Quicksilver parts and accessories are engineered and built by Mer-
cury Marine, specifically for MerCruiser stern drives and inboards.

Service Away From Home

If you are away from your local dealer and the need arises for service,
contact the nearest Authorized Dealer. Refer to the Yellow Pages of
the telephone directory. 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.

Parts And Accessories Inquiries

All inquiries concerning Quicksilver replacement parts and accesso-
ries should be directed to your local Authorized Dealer. The dealer
has the necessary information to order parts and accessories for you
should he not have them in stock. Only Authorized Dealers can pur-
chase genuine Quicksilver parts and accessories from the factory.
Mercury Marine does not sell to unauthorized dealers or retail cus-
tomers. When inquiring on parts and accessories, the dealer re-
quires the motor model and serial number(s) to order the correct
parts.

123
Resolving A Problem
Your satisfaction and goodwill are of primary importance to your
dealer and to MerCruiser. Any problems with service, sales, warranty
or operation of your MerCruiser power package will be resolved by
your dealer. He also is your primary source of information on your
boat, power package and trailer. Should there be a misunderstand-
ing, or if your problem has not been resolved to your satisfaction,
please follow these steps:
STEP ONE - DISCUSS YOUR PROBLEM WITH ONE OF THE
DEALERSHIP MANAGEMENT PERSONNEL.
Misunderstandings or complaints can be quickly resolved by the
dealer. If you are unable to obtain satisfaction, contact the dealer-
ship’s owner.
STEP TWO - IF YOU REQUIRE ADDITIONAL ASSISTANCE TO
RESOLVE YOUR CONCERN, CONTACT YOUR
NEAREST MERCRUISER SERVICE CENTER.
Provide the following important information:
• Your name, address and telephone number.
• The model and serial number(s).
• Your dealer’s name and location.
• Date of purchase.
• Present hours of operation.
• Details of problem or complaint.
• Boat make and size.
• Propeller pitch and/or part number.
• Normal use and approximate gross load.

124
Please bear in mind that Service Centers resolve all problems
through the dealership using the dealer’s facilities, equipment
and personnel. This is the reason we request you use the preceding
steps in sequence when you have a problem or complaint. Our expe-
rience has shown that this is the most expedient and successful pro-
cedure to follow to ensure satisfaction to our customers.
FOLLOW STEP THREE ONLY AFTER COMPLETING STEPS
ONE AND TWO AND YOUR COMPLAINT HAS NOT BEEN RE-
SOLVED.
STEP THREE -CONTACT CONSUMER AFFAIRS DEPARTMENT
United States:
MERCRUISER
3003 N. Perkins Road
Stillwater, OK 74075-2299
Telephone (405) 743-6515
Canada:
Contact Nearest Regional Service Center
Other Countries:
Contact the Nearest
Marine Power International Service Center
The customer service representatives will review all the facts in-
volved. If they feel some further action can be taken, they will advise
the Service Center. They will contact your dealer to bring the problem
to a satisfactory conclusion.
ALL SERVICE WORK IS DONE BY THE AUTHORIZED DEALER
USING THE DEALER’S FACILITIES. OUR SERVICE CENTERS
AND FACTORY DO NOT HAVE FACILITIES TO SERVICE OR RE-
PAIR YOUR PRODUCT.

125
 Service Centers
UNITED STATES
MerCruiser
3003 N. Perkins Road
Stillwater, OK 74075-2299
Telephone (405) 743-6566
Fax (405) 743-6570

CANADA
Mercury Marine
1156 Dundas Highway East
Mississauga, Ontario
L4Y 2C2 Canada
Telephone (416) 270-4481
Fax (905) 270-4510

MEXICO, CENTRAL AMERICA,

SOUTH AMERICA, CARIBBEAN
Marine Power International
9350 SW 72nd St. (Sunset Dr.)
Suite 100
Miami, FL 33173
U.S.A.
Telephone (305) 596-9606
Fax (305) 596-3869

EUROPE, MIDDLE EAST, AFRICA

Marine Power Europe, Inc.
Parc Industriel de Petit-Rechain
B-4822 Verviers
Belgium
Telephone (0) (87) 32 • 32 • 11
Fax (32) (87) 31 19  65

126
AUSTRALIA, PACIFIC
Marine Power International Pty. Ltd.
P.O.Box 80,132-140 Frankston Road
Dandenong, Victoria 3175
Australia
Telephone (61) (3) 791-5822
Fax (61) (3) 791-5880

ASIA
Marine Power International Ltd.
Block 1002 Jalan Bukit Merah #07-08
Redhill Industrial Estate
JTC Flatted Factories
Singapore 0315
Telephone (65) 270-7680
Fax (65) 270-7898

JAPAN
Marine Power International - Japan
No.27-2 Muramatsu Chisaki-Shinden
Shimizu City
Shizuoka Prefecture
Japan 424
Telephone (81) 543/34-2500
Fax (81) 543/34-2022

127
 Customer Service Literature
English language publications are available from:
Mercury Marine
Attn: Publications Department
W6250 West Pioneer Road
P.O. Box 1939
Fond du Lac, WI 54936-1939
Outside the United States and Canada, contact the nearest Ma-
rine Power International Service Center for further information.
When ordering be sure to:
1. List your product, model, year and serial number(s).
2. Check the literature and quantities you want.
3. Enclose full remittance in check or money order (NO C.O.D.’s).

128
CB393

General Maintenance Parts

Engine Parts
Part 7.4L Bravo III
Oil Filter 14957
Spark Plug 33-59571
Distributor Cap 805759A2
Ignition Coil 392-805570A2
Spark Plug Wire Set 84-816608A61
Thermostat (160
F) 807252--2
Thermostat Gaskets 27-33179--2
27-53045--1
Alternator Belt 57-48122
Power Steering Belt 57-816295T
(7” Pulley)
57-13458T
(5 1/2” Pulley)
Sea Water Pump Belt 57-13457T
Water Separating Filter 35-805269--1
Quicksilver Motor Oil 92-816096A12
Storage Seal 92-86145A12
Valvtane Plus 92-17955A12
Gasoline Stabilizer for 92-817529A12
Marine Engines
Fuel System Cleaner 92-17885A12
Corrosion Guard Spray 92-815869A12

129
Drive Parts
Part Bravo III
Front Propeller Nut 11-805092
Rear Propeller Nut 11-805093
Front Thrust Hub 11-805100T
Rear Thrust Hub 11-805101T
Decal Set 37-15167A90
D.S.H. Anodic Plate 821630A1
Anodic Plate (Propeller) 76214A5
Trim Cylinder Anodes 806190A1
Gimbal Housing Anode 821631A1
Drain Screw 10-14834A1
Drain Screw O-Ring 25-805726
Vent Screw 10-79953
Vent Screw O-ring 25-805726
Bell Housing to 16755
D.S.H. Seal
Drive Mounting O-ring 25-45710
Trim Pump 20 Amp Fuse 88-79091
Trim Pump 10 Amp Fuse 88-79023A10
2-4-C Marine Lubricant 92-825407A2
with Teflon
U-Joint and Gimbal 92-828052A2
Bearing Grease
Engine Coupler Spline 92-816391A4
Grease
High Performance Gear 92-816026A1
Lube
Touch Up Spray Paint 92-78373-12

130
CC172
Literature Order Form
Model __________ Horsepower__________
Serial Number__________ Year_____
Service Manual - shows the complete assembly and disassembly
of the engine or stern drive.
Parts Manual - shows the exploded view of the engine or stern drive
with corresponding part number.
Operation and maintenance manual (Owner’s Guide) - explains
basic operation and maintenance.

Manual Part Number Qty. Price Total

(Official Use Only) Each Price
Service Manual: 90- $30.00
Engine
Service Manual: 90- $30.00
Drive
Service Manual: 90- $30.00
Remote Control
Parts Manual: 90- $4.95
Engine Only
Parts Manual: 90- $4.95
Drive Only
Operation and Main- 90- $5.00
tenance Manual
Sub-
Total
* must be collected from customers in all states except:
AK, AZ, DE, HI, ID, IA, ME, MI, MT, NV, NH, NY, OR, VT, Sales
WV, WY
Tax *
** Orders Totaling: up to $20.00, add $3.00 Ship/
20.01 - $50.00, add $4.00
50.01 - up, Free Hand**
Grand
Total

131
Please Return with Payment to:

Mercury Marine
Attn: Publications Dept.
P.O. Box 1939
Fond du Lac, WI 54936-1939

Ship To: (Please Print or Type - This is your Shipping Label)

Name

Address
City State Zip

METHOD OF PAYMENT: (NO CASH OR C.O.D.)

Personal Check Cashiers Check Money Order

Visa MasterCard Month/Year

Card Number
Expiration Date

Signature Date
( )
Telephone Number

132