Mercury 6.2L MPI, 4.5L User Manual
Welcome
You have selected one of the finest marine power packages available. It incorporates numerous design features to
ensure operating ease and durability.
With proper care and maintenance, you will enjoy using this product for many boating seasons. To ensure maximum
performance and carefree use, we ask that you thoroughly read this manual.
The Operation and Maintenance Manual contains specific instructions for using and maintaining your product. We
suggest that this manual remain with the product for ready reference whenever you are on the water.
Thank you for purchasing one of our products. We sincerely hope your boating will be pleasant!
Mercury Marine, Fond du Lac, Wisconsin, U.S.A.
Name / function:
John Pfeifer, President,
Mercury Marine
Read This Manual Thoroughly
IMPORTANT: If you do not understand any portion of this manual, contact your dealer. Your dealer can also provide a
demonstration of actual starting and operating procedures.
Notice
Throughout this publication, and on your power package, warnings, cautions, and notices, accompanied by the
8M0128973 517 eng
International Hazard Symbol !, may be used to alert the installer and user to special instructions concerning a
particular service or operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully.
These safety alerts alone cannot eliminate the hazards that they signal. Strict compliance with these special instructions
while performing the service, plus common sense operation, are major accident prevention measures.
WARNING
!
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
!
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, could result in engine or major component failure.
IMPORTANT: Identifies information essential to the successful completion of the task.
NOTE: Indicates information that helps in the understanding of a particular step or action.
IMPORTANT: The operator (driver) is responsible for the correct and safe operation of the boat, the equipment aboard,
and the safety of all occupants aboard. We strongly recommend that the operator read this Operation and Maintenance
Manual and thoroughly understand the operational instructions for the power package and all related accessories before
the boat is used.
WARNING
!
The engine exhaust from this product contains chemicals known to the state of California to cause cancer, birth
defects or other reproductive harm.
4.5L, 6.2L MPI
The serial numbers are the manufacturer’s keys to numerous engineering details that apply to your Mercury Marine
power package. When contacting Mercury Marine about service, always specify model and serial numbers.
Descriptions and specifications contained herein were in effect at the time this was approved for printing. Mercury
Marine, whose policies are based on continuous improvement, reserves the right to discontinue models at any time or to
change specifications or designs without notice and without incurring obligation.
© 2017 Mercury Marine
Warranty Message
The product you have purchased comes with a limited warranty from Mercury Marine; the terms of the warranty are set forth
in the Warranty Manual included with the product. The Warranty Manual contains a description of what is covered, what is not
covered, the duration of coverage, how to best obtain warranty coverage, important disclaimers and limitations of
damages, and other related information. Please review this important information.
Mercury Marine products are designed and manufactured to comply with our own high quality standards, applicable industry
standards and regulations, as well as certain emissions regulations. At Mercury Marine every engine is operated and tested
before it is boxed for shipment to make sure that the product is ready for use. In addition, certain Mercury Marine products are
tested in a controlled and monitored environment, for up to 10 hours of engine run time, in order to verify and make a record of
compliance with applicable standards and regulations. All Mercury Marine product, sold as new, receives the applicable limited
warranty coverage, whether the engine participated in one of the test programs described above or not.
Copyright and Trademark Information
© MERCURY MARINE. All rights reserved. Reproduction in whole or in part without permission is prohibited.
Alpha, Axius, Bravo One, Bravo Two, Bravo Three, Circle M with Waves Logo, K‑planes, Mariner, MerCathode, MerCruiser,
Mercury, Mercury with Waves Logo, Mercury Marine, Mercury Precision Parts, Mercury Propellers, Mercury Racing,
MotorGuide, OptiMax, Quicksilver, SeaCore, Skyhook, SmartCraft, Sport‑Jet, Verado, VesselView, Zero Effort, Zeus, #1 On the
Water and We're Driven to Win are registered trademarks of Brunswick Corporation. Pro XS is a trademark of Brunswick
Corporation. Mercury Product Protection is a registered service mark of Brunswick Corporation.
Identification Records
Please record the following applicable information:
MerCruiser
Engine Model and Horsepower Engine Serial Number
Transom Assembly Serial Number (Sterndrive) Gear Ratio Sterndrive Unit Serial Number
Transmission Model (Inboard) Gear Ratio Transmission Serial Number
Propeller Number Pitch Diameter
Hull Identification Number (HIN) Purchase Date
Boat Manufacturer Boat Model Length
Exhaust Gas Emissions Certification Number (Europe Only)
TABLE OF CONTENTS
Section 1 - Getting to Know Your Power Package
Adaptive Speed Control (ASC).................................................. 2
Additional Operation Instructions for Joystick Piloting Sterndrive
(JPS).......................................................................................... 2
Identification............................................................................... 2
Engine Serial Number ........................................................ 2
Alpha Sterndrive Serial Number......................................... 3
Alpha Transom Serial Number........................................... 3
Bravo Sterndrive Serial Number and Identification............. 4
Bravo Transom Serial Number........................................... 4
Lanyard Stop Switch.................................................................. 5
Keep the Lanyard Stop Switch and Lanyard Cord in Good
Operating Condition............................................................. 6
Instrumentation.......................................................................... 6
VesselView........................................................................... 6
SmartCraft Digital Instruments............................................. 6
System Link Digital Instruments........................................... 7
Remote Controls (Non‑DTS Models)......................................... 8
Remote Control Features—Non‑DTS................................. 8
Gear Shifting...................................................................8
Remote Controls (DTS Models)................................................. 9
Remote Controls................................................................. 9
Panel Mount Features........................................................ 9
DTS Slim Binnacle Single Handle Console Features and
Operation............................................................................ 9
Special Digital Throttle and Shift (DTS) Features.........10
Dual‑Handle Electronic Remote Control (ERC)—Operation
and Adjustment................................................................. 11
Operation...................................................................... 11
Adjustment....................................................................11
Special Digital Throttle and Shift (DTS) Features............. 12
Dock............................................................................. 13
Throttle Only................................................................. 13
1 Lever..........................................................................14
Sync..............................................................................14
Transfer (Boats Equipped with Dual Helms)................ 15
Helm Transfer................................................................... 15
Zero Effort Features.......................................................... 15
Power Trim............................................................................... 16
Single Engine Trim/Trailer.................................................. 17
Dual Engine Trim/Trailer.................................................... 17
Electrical System Overload Protection..................................... 17
Visual and Audio Warning Systems......................................... 19
Service Engine Light and OBD‑M MIL Kit......................... 19
Testing the OBD‑M Malfunction Indicator Lamp
(MIL)............................................................................. 20
Audio Warning System..................................................... 20
Caution......................................................................... 20
Critical...........................................................................20
Nonconfigured Alarm–DTS Only.................................. 20
Testing the Audio Warning System.............................. 21
Guardian Strategy............................................................. 21
Section 2 - On the Water
Additional Operation Instructions for Joystick Piloting Sterndrive
(JPS)........................................................................................ 24
Safe Boating Recommendations............................................. 24
Carbon Monoxide Exposure.................................................... 25
Be Alert To Carbon Monoxide Poisoning........................... 25
Stay Clear of Exhaust Areas.............................................. 25
Good Ventilation ................................................................ 25
Poor Ventilation ................................................................. 26
Basic Boat Operation .............................................................. 26
Launching and Boat Operation......................................... 26
Operation Chart............................................................ 26
Starting and Stopping the Engine..................................... 27
Starting the Engine....................................................... 27
Stopping the Engine..................................................... 28
Starting the Engine After It Has Stopped While In Gear—
Non‑DTS Applications...................................................... 28
Throttle Only Operation.................................................... 28
Trailering the Boat............................................................ 28
Freezing Temperature Operation..................................... 28
Drain Plug and Bilge Pump............................................... 28
Protecting People in the Water................................................ 29
While You Are Cruising...................................................... 29
While Boat Is Stationary..................................................... 29
High‑Speed and High‑Performance Operation........................ 29
Passenger Safety in Pontoon Boats and Deck Boats.............. 29
Boats Having an Open Front Deck.....................................29
Boats With Front‑Mounted, Raised Pedestal Fishing Seats
........................................................................................... 29
Wave and Wake Jumping........................................................ 30
Impact with Underwater Hazards............................................. 30
Drive Unit Impact Protection...............................................31
Operating with Low Water Inlets in Shallow Water.................. 31
Conditions Affecting Operation................................................ 31
Weight Distribution (Passengers and Gear) Inside the
Boat.................................................................................. 31
The Bottom of the Boat..................................................... 32
Cavitation.......................................................................... 32
Ventilation......................................................................... 32
Elevation and Climate....................................................... 32
Propeller Selection............................................................ 32
General Information...................................................... 32
Engine RPM Limiter......................................................33
Getting Started......................................................................... 33
20‑Hour Break‑In Period................................................... 33
After the Break‑In Period.................................................. 33
End of First Season Checkup........................................... 33
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Section 3 - Specifications
Fuel Requirements................................................................. 36
Fuel Ratings...................................................................... 36
Using Reformulated (Oxygenated) Gasoline (USA Only)
.......................................................................................... 36
Gasoline Containing Alcohol............................................. 36
Bu16 Butanol Fuel Blends.......................................... 36
Methanol and Ethanol Fuel Blends............................. 36
Engine Oil............................................................................... 36
Engine Specifications............................................................. 37
Section 4 - Maintenance
Service Decals........................................................................ 42
Closed Cooling Service Decals ‑ Alpha and Bravo Drive
.......................................................................................... 42
Bravo Standard Cooling Service Decal............................ 42
Alpha Standard Cooling Service Decal............................. 43
Additional Operation Instructions for Joystick Piloting
Sterndrive (JPS)..................................................................... 43
Owner/Operator Responsibilities............................................ 43
Dealer Responsibilities........................................................... 43
Maintenance........................................................................... 43
Do‑It‑Yourself Maintenance Suggestions............................... 44
Inspection............................................................................... 44
MerCruiser Gas Sterndrive Inspection and Maintenance
Schedule................................................................................. 44
Daily Checks..................................................................... 44
After Each Use.................................................................. 45
Weekly Checks................................................................. 45
Every Two Months or 50 Hours........................................ 45
Annually or 100 Hours...................................................... 45
Three Years or 300 Hours................................................ 45
Five Years or 500 Hours................................................... 46
Engine Oil............................................................................... 46
Checking......................................................................... 46
Oil Level—Overfilled................................................... 46
Filling............................................................................... 46
Changing Oil and Filter.................................................... 47
Engine Oil Drain Pump.................................................... 47
Changing Filter................................................................ 48
Power Steering Fluid.............................................................. 48
Checking........................................................................... 48
Filling................................................................................ 49
Changing.......................................................................... 49
Engine Coolant ‑ Closed‑Cooling........................................... 49
Checking......................................................................... 49
Filling............................................................................... 50
Changing ........................................................................ 50
Alpha Sterndrive Gear Lube................................................... 51
Checking........................................................................... 51
Filling................................................................................ 51
Changing.......................................................................... 51
Bravo Sterndrive Gear Lube................................................... 52
Checking......................................................................... 52
Filling............................................................................... 53
Changing......................................................................... 53
Power Trim Fluid.................................................................... 55
Checking........................................................................... 55
4.5L MPI Engine Specifications....................................... 37
6.2L MPI Engine Specifications....................................... 38
Fluid Specifications................................................................. 38
Engine............................................................................. 38
Alpha Sterndrive.............................................................. 39
Bravo Sterndrives............................................................ 39
Power‑Assisted Steering and Power Trim Fluids............ 39
Approved Power‑Assisted Steering Fluids.................. 39
Approved Power Trim Fluids....................................... 39
Filling................................................................................ 55
Changing.......................................................................... 55
Battery.................................................................................... 55
Auxiliary Batteries............................................................ 55
Multiple EFI Engine Battery Precautions......................... 56
Flame Arrestor........................................................................ 56
Changing the Positive Crankcase Ventilation (PCV) Valve ... 58
Fuel System Maintenance...................................................... 59
Fuel System.................................................................... 59
Fuel Line Inspection........................................................ 59
Water‑Separating Fuel Filter........................................... 59
Filter Housing Removal............................................... 59
Draining the Filter Housing..........................................60
Fuel Filter Inspection................................................... 60
Filter Housing Installation............................................ 60
Lubrication.............................................................................. 61
Steering System.............................................................. 61
Remote Control Cable Lubrication.................................. 62
Driveshaft U‑joint Splines and O‑Rings (Sterndrive Unit
Removed)........................................................................ 63
Engine Coupler................................................................ 63
Engine Coupler................................................................ 63
Driveshaft Extension Models........................................... 64
Propellers............................................................................... 64
Propeller Repair.............................................................. 64
Alpha or Bravo One Propeller Removal.......................... 65
Alpha or Bravo One Propeller Installation....................... 65
Bravo Two Propeller Removal......................................... 66
Bravo Two Propeller Installation...................................... 66
Bravo Three Propeller Removal...................................... 67
Bravo Three Propeller Installation................................... 68
Serpentine Drive Belt.............................................................. 69
Serpentine Drive Belt Routing......................................... 69
Serpentine Belt Failure Identification............................... 70
Checking......................................................................... 71
Replacing........................................................................ 72
Corrosion Protection............................................................... 72
Corrosion Information...................................................... 72
Maintaining Ground Circuit Continuity............................. 72
Sterndrive Corrosion Protection Components................. 73
MerCathode System Battery Requirements.................... 75
MerCathode Control Module........................................... 76
MerCathode Theory of Operation.................................... 76
Do Not Use Caustic Cleaning Chemicals........................ 77
Power Package Exterior Surfaces................................... 77
Boat Bottom Care............................................................ 77
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Painting Your Power Package.......................................... 77
Sterndrive Surface Care................................................... 78
Important Information About Flushing Procedures.................. 79
Flushing Attachments......................................................... 79
Flushing the Power Package (Alpha Models).......................... 79
Alpha Models with Standard Cooling................................ 79
Sterndrive Water Pickups............................................. 79
Alpha Models with Closed Cooling................................... 80
Section 5 - Storage
Sterndrive Water Pickups............................................. 81
Flushing the Power Package—Bravo Models.......................... 82
Flushing Attachments................................................... 82
Sterndrive Water Pickups............................................. 83
Alternative Water Pickups............................................ 84
SeaCore Power Package Flushing Procedure................. 85
Models Using the Sterndrive Water Pickup.................. 85
Draining the Seawater System................................................ 90
Draining the Raw Water.................................................... 90
Air Actuated Single‑Point Drain System—Closed
Cooling.............................................................................. 90
Air Actuated Single‑Point Drain System (Bravo Standard
Cooling)............................................................................ 92
Manual Single‑Point Drain System (Alpha Standard
Cooling)............................................................................ 94
Section 6 - Troubleshooting
Diagnosing EFI Problems...................................................... 100
Diagnosing DTS Problems..................................................... 100
Additional Operation Instructions for Joystick Piloting Sterndrive
(JPS)...................................................................................... 100
Engine Guardian System....................................................... 100
Troubleshooting Charts.......................................................... 100
Starter Motor Will Not Crank Engine, or Cranks Slowly.. 100
Engine Will Not Start or Is Hard to Start......................... 100
Engine Runs Rough, Misses, or Backfires..................... 101
Poor Performance........................................................... 101
Excessive Engine Temperature...................................... 101
Cold Weather or Extended Storage......................................... 95
Reformulated (Oxygenated) Gasolines (U.S.A. Only)...... 95
Fuel Containing Alcohol.................................................... 95
Preparing Power Package for Storage—MPI Models....... 96
Special Fuel Mix........................................................... 96
Engine and Fuel System Preparation........................... 97
Battery Storage........................................................................ 97
Recommissioning the Power Package.................................... 98
Insufficient Engine Temperature..................................... 101
Low Engine Oil Pressure................................................ 101
Battery Will Not Recharge.............................................. 102
Remote Control Is Difficult to Move, Has Excessive Play, or
Makes Unusual Sounds.................................................. 102
Electronic Remote Controls............................................ 102
Steering Wheel Jerks or Is Difficult to Turn.................... 103
Power Trim Does Not Operate (Motor Does Not
Operate).......................................................................... 103
Power Trim Does Not Operate (Motor Operates but
Sterndrive Unit Does Not Move)..................................... 103
Section 7 - Customer Assistance Information
Owner Service Assistance..................................................... 106
Local Repair Service........................................................ 106
Service Away From Home................................................106
Stolen Power Package..................................................... 106
Attention Required After Submersion............................... 106
Replacement Service Parts.............................................. 106
Parts and Accessories Inquiries....................................... 106
Resolving a Problem........................................................ 106
Contact Information for Mercury Marine Customer Service
......................................................................................... 107
Customer Service Literature.................................................. 107
English Language............................................................ 107
Other Languages..............................................................108
Ordering Literature................................................................. 108
United States and Canada............................................... 108
Outside the United States and Canada............................ 108
Section 8 - Checklists
Predelivery Inspection (PDI).................................................. 110 Customer Delivery Inspection (CDI)...................................... 111
Section 9 - Maintenance Log
Scheduled Maintenance Log................................................. 114 Vessel Maintenance Notes.................................................... 115
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Section 1 - Getting to Know Your Power Package
Section 1 - Getting to Know Your Power Package
Table of Contents
Adaptive Speed Control (ASC)............................................... 2
Additional Operation Instructions for Joystick Piloting
Sterndrive (JPS)..................................................................... 2
Identification........................................................................... 2
Engine Serial Number .....................................................2
Alpha Sterndrive Serial Number...................................... 3
Alpha Transom Serial Number........................................ 3
Bravo Sterndrive Serial Number and Identification.......... 4
Bravo Transom Serial Number........................................ 4
Lanyard Stop Switch............................................................... 5
Keep the Lanyard Stop Switch and Lanyard Cord in
Good Operating Condition .............................................. 6
Instrumentation....................................................................... 6
VesselView ..................................................................... 6
SmartCraft Digital Instruments ....................................... 6
System Link Digital Instruments ..................................... 7
Remote Controls (Non‑DTS Models)...................................... 8
Remote Control Features—Non‑DTS.............................. 8
Gear Shifting ........................................................... 8
Remote Controls (DTS Models)............................................. 9
Remote Controls.............................................................. 9
Panel Mount Features..................................................... 9
DTS Slim Binnacle Single Handle Console Features and
Operation......................................................................... 9
Special Digital Throttle and Shift (DTS) Features
.............................................................................. 10
1
Dual‑Handle Electronic Remote Control (ERC)—
Operation and Adjustment............................................. 11
Operation ............................................................... 11
Adjustment ............................................................ 11
Special Digital Throttle and Shift (DTS) Features.......... 12
Dock ...................................................................... 13
Throttle Only .......................................................... 13
1 Lever .................................................................. 14
Sync ...................................................................... 14
Transfer (Boats Equipped with Dual Helms) ......... 15
Helm Transfer................................................................ 15
Zero Effort Features.......................................................15
Power Trim........................................................................... 16
Single Engine Trim/Trailer ............................................ 17
Dual Engine Trim/Trailer ............................................... 17
Electrical System Overload Protection................................. 17
Visual and Audio Warning Systems..................................... 19
Service Engine Light and OBD‑M MIL Kit......................19
Testing the OBD‑M Malfunction Indicator Lamp (MIL)
.............................................................................. 20
Audio Warning System.................................................. 20
Caution .................................................................. 20
Critical ................................................................... 20
Nonconfigured Alarm–DTS Only ........................... 20
Testing the Audio Warning System ....................... 21
Guardian Strategy..........................................................21
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Adaptive Speed Control (ASC)
This power package utilizes Adaptive Speed Control (ASC) to maintain the engine RPM that is demanded at the remote
control, regardless of the load change. As an example of how ASC functions, when the operator steers the boat into a hard turn
or is navigating at a slow on‑plane speed in following seas when boat control is needed without a lot of speed, the propulsion
control module will automatically adjust the engine to maintain the RPM without the operator changing the position of the
remote control throttle handle. ASC allows the operator to keep both hands on the steering wheel, which is safer, and the
operator can focus on the boating experience.
Additional Operation Instructions for Joystick Piloting Sterndrive (JPS)
Refer to the JPS Operation Manual for additional important operation and maintenance instructions if your boat is equipped
with JPS.
Identification
The serial numbers are the manufacturer's keys to numerous engineering details which apply to your MerCruiser power
package. When contacting MerCruiser about service, always specify model and serial numbers.
Engine Serial Number
The serial number is located in two places on the engine. One is on the engine specification decal located on the engine cover,
and the other is secured to the Starboard side of the engine block near the starter motor.
A quick reference code on the engine cover or heat exchanger can be used to access additional information about the engine
and safe boating practices.
a - Quick reference code
b - Engine specification decal
Engine block location
a - Engine serial number plate
b - Flywheel housing
c - Starter motor
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Alpha Sterndrive Serial Number
The drive serial number and the drive ratio are located on the port side of the sterndrive.
Alpha sterndrive
Alpha Transom Serial Number
The Alpha transom serial number is stamped in the transom assembly decal.
The serial number is also stamped on the gimbal housing. This is used as a permanent reference for authorized MerCruiser
dealers.
Serial number location on gimbal housing
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Bravo Sterndrive Serial Number and Identification
The Bravo sterndrive serial number, gear ratio, model number, and bar code are embedded in the ground plate on the port side
of the sterndrive.
Bravo sterndrive information on ground plate
The serial number is also stamped on the driveshaft housing behind the back cover. This is used as a permanent reference for
authorized MerCruiser dealers.
Bravo sterndrive serial number stamping
Bravo Transom Serial Number
The Bravo transom serial number is stamped in the transom assembly decal.
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Section 1 - Getting to Know Your Power Package
The serial number is also stamped on the gimbal housing. This is used as a permanent reference for authorized MerCruiser
dealers.
Serial number location on gimbal housing
Lanyard Stop Switch
A lanyard switch is designed to shut down the engine in the event the operator unexpectedly moves away from the helm, as
may happen in an accidental ejection. The lanyard is connected to the operator's personal flotation device or wrist.
A decal near the lanyard stop switch reminds the operator to attach the lanyard to his or her personal flotation device or wrist.
a - Lanyard cord clip
b - Lanyard decal
c - Lanyard stop switch
Accidental ejections, such as falling overboard, are more likely to occur in:
• Low‑sided sport boats
• Bass boats
• High‑performance boats
Accidental ejections can also occur from:
• Poor operating practices
• Sitting on the seat or gunwale at planing speeds
• Standing at planing speeds
• Operating at planing speeds in shallow or obstacle‑infested waters
• Releasing your grip on the steering wheel
• Carelessness caused by consuming alcohol or drugs
• High‑speed boating maneuvers
The lanyard is a cord usually between 122 and 152 cm (4 and 5 ft) long when stretched out, with an element on one end made
to be inserted into the switch, and a snap on the other end for attaching to the operator. The lanyard is coiled to make its at‑rest
condition as short as possible to minimize the likelihood of lanyard entanglement with nearby objects. Its stretched‑out length is
made to minimize the likelihood of accidental activation should the operator choose to move around in an area close to the
operator's normal position. The operator can shorten the lanyard by wrapping the lanyard around his wrist, or by tying a knot in
the lanyard.
Activation of the lanyard stop switch will stop the engine immediately, but the boat will continue to coast for some distance,
depending upon its velocity. While the boat is coasting, it can cause injury to anyone in the boat's path as it would under power.
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Section 1 - Getting to Know Your Power Package
Instruct all passengers on the proper starting and operating procedures should they be required to operate the boat in an
emergency.
WARNING
!
If the operator falls out of the boat, stop the engine immediately to reduce the possibility of serious injury or death from being
struck by the boat. Always properly connect the operator to the stop switch using a lanyard.
Accidental or unintended activation of the switch during normal operation is also a possibility. This could cause any, or all, of
the following potentially hazardous situations:
• Occupants could be thrown forward due to unexpected loss of forward motion, a particular concern for passengers in the
front of the boat who could be ejected over the bow and possibly struck by the propulsion or steering components.
• Loss of power and directional control in heavy seas, strong current, or high winds.
• Loss of control when docking.
WARNING
!
Avoid serious injury or death from deceleration forces resulting from accidental or unintended stop switch activation. The boat
operator should never leave the operator's station without first disconnecting the stop switch lanyard from the operator.
Keep the Lanyard Stop Switch and Lanyard Cord in Good Operating Condition
Before each use, ensure that the lanyard stop switch works properly. Start the engine, and then stop it by pulling the lanyard
cord. If the engine does not stop, have the switch repaired before operating the boat.
Before each use, inspect the lanyard cord to ensure that it is in good working condition and that there are no breaks, cuts, or
wear to the cord. Check that the clips on the ends of the cord are in good condition. Replace any damaged or worn lanyard
cords.
Instrumentation
VesselView
There are several VesselView products available. VesselView will display all engine information, fault codes, vessel
information, basic navigation data, and system information. When an operating system error or failure occurs, VesselView
displays an alarm message.
VesselView may also be connected to other vessel systems such as GPS, generators, and chartplotters. This vessel
integration allows the operator to monitor and control a wide range of vessel systems from a single display.
Refer to the VesselView operator's manual for more information.
VesselView
SmartCraft Digital Instruments
The SmartCraft instrument package augments the VesselView display. The instrument package may include:
• Tachometer
• Speedometer
• Engine coolant temperature
• Engine oil pressure
• Battery voltage
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• Fuel consumption
• Engine operating hours
SmartCraft tachometer and speedometer
a - Tachometer
b - Speedometer
c - LCD display
The SmartCraft instrument package also aids in identifying fault codes associated with the engine audio warning system. The
SmartCraft instrument package displays critical engine alarm data and other potential problems on its LCD display.
For basic operation information on the SmartCraft instrument package and for details on the warning functions monitored by the
system, refer to the manual provided with your gauge package.
System Link Digital Instruments
Some instrumentation packages include system link gauges that augment the information provided by VesselView or a
SmartCraft system tachometer and speedometer. The owner and operator should be familiar with all the instruments and their
functions on the boat. Have your boat dealer explain the gauges and normal readings that appear on your boat.
The following digital instruments may be included with your power package.
System Link digital gauges
Item Gauge Indicates
a Oil pressure gauge Engine oil pressure
b Voltmeter Battery voltage
c Water temperature gauge Engine operating temperature
d Fuel gauge Quantity of fuel in tank
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Remote Controls (Non‑DTS Models)
Remote Control Features—Non‑DTS
Your boat may be equipped with one of the Mercury Precision or Quicksilver remote controls shown. If not, consult your dealer
for a description of the functions and operations of the remote control.
a - Trim/tilt switch
b - Ignition key switch—OFF, ON, START
c - Throttle only button
d - Lanyard stop switch
•
Trim/tilt switch ‑ Used to trim the drive during operation or raise the drive for trailering, launching, beaching, or shallow
water operation.
•
Throttle only button ‑ The throttle only button allows throttle advancement without shifting the engine. The throttle only
button disengages the shifting mechanism from the control handle. The throttle only button can be pressed and held in only
when the remote control handle is in the neutral position. While holding the throttle only button in, move the throttle handle
forward to assist in starting the engine.
•
Lanyard stop switch (if equipped) ‑ The purpose of a lanyard stop switch is to shut down the engine when the operator
moves far enough away from the operator's position to activate the switch. A lanyard stop switch can be installed as an
accessory, generally on the dashboard or side adjacent to the operator's position.
•
Control handle ‑ Operation of the shift and throttle is controlled by the movement of the control handle. Push the control
handle forward from neutral with a quick firm motion to the first detent for forward gear. Continue pushing forward to
increase speed. Pull the control handle back from neutral with a quick firm motion to the first detent for reverse gear.
Continue pulling back to increase speed.
IMPORTANT: Forcing the shift mechanism while the engine is not operating can result in product damage.
Gear Shifting
IMPORTANT: Observe the following:
•
Never shift the drive into gear unless the engine speed is at idle.
•
Do not shift the drive into reverse when the engine is not running.
• Your power package has three gear shift positions to provide operation: forward (F), neutral (N), and reverse (R).
• When shifting, always stop at the neutral position and allow the engine speed to return to idle.
• Always shift into gear with a quick motion.
• After shifting into gear, advance the lever further to increase speed.
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Section 1 - Getting to Know Your Power Package
Remote Controls (DTS Models)
Remote Controls
IMPORTANT: Your boat must be equipped with a Mercury Marine electronic remote control. Start in gear protection is provided
by this control system and prevents the engine from starting when the control is actuated in forward or reverse. Refer to the
Mercury Precision Parts/Quicksilver Accessories Guide.
The digital throttle and shift (DTS) system required to operate this engine package provides start and stop functions, throttle
control, shift control, start in gear protection, and emergency lanyard stop functions. The DTS system works with specialized
helm components such as a command module kit and electronic remote control. Consult your dealer for a description and/or
demonstration of your remote control.
Panel Mount Features
d
c
b
e
-
+
f
a
g
Lanyard stop switch ‑ Turns the ignition off whenever the operator (when attached to the lanyard) moves far enough away
from the operator's position to activate the switch. Refer to Lanyard Stop Switch for information on the use of this switch.
Control handle ‑ Operation of 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 detent for forward gear. Continue pushing forward to increase
speed. Pull the control handle back from neutral with a quick, firm motion to the first detent for reverse gear and continue
pushing back to increase speed.
Shift lock ‑ Pressing the shift lock allows the engine to shift. The shift lock must always be pressed when moving the control
handle out of the neutral position.
Trim/tilt switch (if equipped) ‑ Refer to Power Trim.
Throttle only button ‑ Allows engine throttle advancement without shifting the engine. The throttle only button can be
depressed only when the remote control is in the neutral position, and should only be used to assist in starting or warming up
the engine.
Start/stop button ‑ Allows the boat operator to start or stop the engine without using the ignition key.
Detent tension adjustment screw ‑ This screw can be adjusted to increase or decrease the effort required to move the control
handle out of the detent positions (cover must be removed). Turning the screw clockwise will increase tension.
Control handle friction adjustment screw ‑ This screw can be adjusted to increase or decrease the tension on the control
handle (cover must be removed). This will help prevent unwanted motion of the handle in rough water. Turn the screw
clockwise to increase tension and counterclockwise to decrease tension.
3409
a - Lanyard stop switch
b - Control handle
c - Shift lock
d - Trim/tilt switch
e - Throttle only button
h
f - Start/stop button
g - Detent tension adjustment screw
h - Control handle friction adjustment screw
DTS Slim Binnacle Single Handle Console Features and Operation
1. Operation of shift and throttle is controlled by the movement of the control handle. Push the control handle forward from
neutral to the first detent for forward gear. Continue pushing forward to increase speed. Pull the control handle back from
neutral to the first detent for reverse gear. Continue pulling back to increase speed.
90-8M0128973 eng MAY 2017 Page 9
a
STOP/
START
THROTTLE - ONLY
DOCK TRANSFER
N
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Section 1 - Getting to Know Your Power Package
2. Trim switch (if equipped) ‑ When the power trim switch is activated on the ERC handle, the DTS command module senses
a closed circuit for either up or down trim. The DTS command module formulates a signal and sends it to the PCM. The
PCM closes the ground circuit to the up or down trim relay.
a - Forward
b - Neutral
c - Reverse
d - Trim switch
3. Detent tension adjustment screw ‑ This screw can be adjusted to increase or decrease the effort to move the control
handle out of detent positions. Turning the screw clockwise will increase tension. Adjust to the desired tension.
4. Control handle tension adjustment screw ‑ This screw can be adjusted to increase or decrease the tension on the control
handle. This will help prevent unwanted motion of the remote control handle in rough water. Turn the screw clockwise to
increase tension and counterclockwise to decrease tension. Adjust to the desired tension.
a - Caps (2)
b - Detent tension adjustment
c - Control handle tension adjustment
NOTE: The control handle tension and detent tension screws may require periodic maintenance adjustment.
Special Digital Throttle and Shift (DTS) Features
The DTS system features several alternate operational modes for the electronic remote control (ERC) levers.
Slim binnacle ERC
Page 10 90-8M0128973 eng MAY 2017
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Section 1 - Getting to Know Your Power Package
Item Control Function
Trim control
a
(handle)
b Stop/Start
c Transfer Allows boat control to be transferred to a different helm.
d Throttle‑only
e + Increases brightness settings for the CAN pad, VesselView, and SmartCraft gauges.
f – Decreases brightness settings for the CAN pad, VesselView, and SmartCraft gauges.
g Dock
h Neutral light
Raises and lowers the sterndrive for best efficiency, or for conditions such as shallow water,
trailering, etc.
Allows the operator to start or stop the engine without the use of the key switch. The key switch
must be in the run position for the start/stop switch to function.
Allows the boat operator to increase engine RPM for warm‑up without shifting the transmission
into gear.
Reduces control lever operation throttle capacity to approximately 50% of normal control lever
throttle demand.
Illuminates when the drive is in the neutral gear position. The lights flash when the engine is in
throttle only mode.
Dual‑Handle Electronic Remote Control (ERC)—Operation and Adjustment
Operation
The electronic remote control (ERC) handle controls the shift and throttle operation. Push the control handle forward from
neutral to the first detent for forward gear. Continue pushing the handle forward to increase speed. Pull the control handle from
the forward position to the neutral position to decrease speed and eventually stop. Pull the control handle back from neutral to
the first detent for reverse gear. Continue pulling the handle back to increase speed in reverse.
NOTE: In certain modes, the gear position is determined by the electronic shift control (ESC), not the position of the ERC
levers. When using the joystick or while in Skyhook, the computer controls the shifting in and out of gears even though the
handles are in neutral.
a - Forward
b - Neutral
c - Reverse
The amount of force needed to move the handles and to move the handles through the detents is adjustable to help prevent
unwanted motion.
Adjustment
NOTE: The control handle tension and detent tension may require periodic maintenance using the adjustment screws.
To adjust the handle detent tension:
1. Remove the side cover plugs of the handle that needs adjustment.
2. Turn the adjustment screw clockwise to increase tension on the control handle and counterclockwise to decrease tension.
3. Adjust to the tension desired.
To adjust handle tension:
1. Remove the side cover plugs of the handle that needs adjustment.
2. Turn the adjustment screw clockwise to increase tension on the control handle and counterclockwise to decrease tension.
90-8M0128973 eng MAY 2017 Page 11
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Section 1 - Getting to Know Your Power Package
3. Adjust to the tension desired.
a - Detent tension adjustment screw
b - Handle tension adjustment screw
Special Digital Throttle and Shift (DTS) Features
The DTS system features several alternate operational modes for the electronic remote control (ERC) levers. Any of the listed
features can operate simultaneously.
Dual engine ERC
Item Control Function
Trim control
a
(handle)
b Neutral lights
c TRANSFER
d DOCK
e + Increases brightness settings for the CAN pad, VesselView, and SmartCraft gauges.
Page 12 90-8M0128973 eng MAY 2017
Raises and lowers the sterndrives for best efficiency, or for conditions such as shallow water,
trailering, etc.
Illuminate when the drive is in the neutral gear position. The lights flash when the engine is in
throttle only mode.
Allows boat control to be transferred to a different helm. Refer to Helm Transfer.
Available with joystick operation and the control levers.
Joystick operation reduces throttle capacity to approximately 70% of normal joystick throttle
demand.
Control lever operation reduces throttle capacity to approximately 50% of normal control lever
throttle demand.
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Section 1 - Getting to Know Your Power Package
Item Control Function
f THROTTLE ONLY
g – Decreases brightness settings for the CAN pad, VesselView, and SmartCraft gauges.
h 1 LEVER Enables the throttle and shift functions of both engines to be controlled by the port lever.
i SYNC
Allows the boat operator to increase engine RPM for warm‑up without shifting the transmission into
gear.
Turns off or on the auto‑synchronization feature. Refer to Sync.
NOTE: Not all functions may be active.
Dock
Dock mode is available with joystick operation and remote control lever operation. Dock mode reduces throttle capacity to
approximately 70% of normal joystick throttle demand, allowing finer control of engine power in close quarter situations. If more
power is needed for vessel maneuvering when environmental conditions require more thrust, use the electronic remote control
levers.
DOCK button
Throttle Only
NOTE: On vessels equipped with a joystick, throttle only mode should be used to disable the joystick if the captain is not in
command at the helm. Placing the ERC in throttle only mode will avoid unintended gear engagement. The engines will turn
using the steering wheel or the joystick and the RPM of the engines can be increased while in the throttle only mode, but the
gear position will remain in neutral.
THROTTLE ONLY button
To engage throttle only mode:
1. Place both ERC levers in neutral.
2. Press the THROTTLE ONLY button. The button light will turn on and the neutral lights will blink.
3. Place either ERC lever into gear. The warning horn will beep each time the levers are moved in and out of gear while in
throttle only, but will remain in neutral.
4. The RPM of the engines can be increased.
5. Throttle only mode also affects the joystick. The engines will move and the RPM can be increased, but will remain in
neutral.
NOTE: Pressing the THROTTLE ONLY button while the ERC levers are not in the neutral position turns the button light off and
remains in throttle only mode. You must place the ERC levers into the neutral position to disengage throttle only mode.
To disengage throttle only mode:
1. Place both ERC levers into neutral. Throttle only will not disengage unless the ERC levers are in neutral.
2. Press the THROTTLE ONLY button. The button light will turn off.
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Section 1 - Getting to Know Your Power Package
3. The neutral lights stop flashing and remain illuminated. The joystick can now be used.
1 Lever
The joystick piloting system features the ability to command both engines with a single lever on a dual‑engine application. This
feature simplifies engine management during rough sea conditions by allowing you to use a single lever to command both
engines simultaneously. It has no affect on the joystick function. It is not the same as the system feature called Sync.
1 LEVER button
To engage 1 Lever mode:
1. Place both ERC levers in neutral.
2. Press the 1 LEVER button. The button light will turn on.
3. Place the starboard ERC lever into gear.
4. When the handle is moved, the engines RPM and gear position is synchronized.
To disengage 1 Lever mode:
1. Place both ERC levers in neutral.
2. Press the 1 LEVER button. The button light turns off.
Sync
Sync is an automatic engine synchronization feature that is always on unless it is manually turned off. Sync monitors the
position of both ERC levers. When both levers are within 10% of one another, the port engine synchronizes to the starboard
engine's RPM. The SmartCraft system will automatically disengage sync after 95% of throttle position range to allow each
engine the ability to reach maximum available RPM. Sync cannot engage until the engines are at a minimum speed.
The indicator light on the SYNC button is on when both engines are on. The light is yellow at idle and 95% of throttle and when
the engines are not synchronized. The light turns red when the engines are synchronized.
SYNC button
The RPM display of VesselView also shows an orange icon under the RPM numbers if the engine's RPMs differ more than
10% of each other, and the icon turns red when they are synchronized.
To disengage sync mode:
1. Place the ERC levers in any detent.
2. Press the SYNC button. The button light turns off.
To engage sync mode, press the SYNC button at any time.
Page 14 90-8M0128973 eng MAY 2017
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Section 1 - Getting to Know Your Power Package
Transfer (Boats Equipped with Dual Helms)
The TRANSFER button allows the boat operator to transfer control of the boat from the active helm to the inactive helm on
boats equipped with dual helms. Refer to Helm Transfer.
TRANSFER button
Helm Transfer
Some boats are designed to allow control of the vessel from more than one location. These locations are commonly referred to
as helms or stations. Helm transfer is a term used to describe the method of transferring control from one helm (or station) to
another helm.
WARNING
!
Avoid serious injury or death from loss of boat control. The boat operator should never leave the active station while engine is
in gear. Helm transfer should only be attempted while both stations are manned. One‑person helm transfer should only be
performed while engine is in neutral.
The helm transfer function allows the boat operator to select which helm is in control of the vessel. Before a transfer can be
initiated the ERC levers at the active helm and at the helm intended for the transfer must be in the neutral position.
NOTE: If you attempt to transfer helm control when the ERC levers are not in neutral, a beep will sound and the helm transfer
will not succeed until the levers at the helms are moved to neutral and transfer is requested again.
Some fault codes may appear on VesselView if other control or navigation functions are attempted after the helm transfer
procedure is started. To remove the fault codes it may be necessary to cycle the key switch off and on, and then restart the
helm transfer procedure. Ensure that other control and navigation inputs are performed after helm transfer is complete to avoid
setting fault codes.
NOTICE
The ERC levers must be in neutral to perform a helm transfer. While in neutral your vessel could drift and collide with objects
nearby resulting in damage. Keep an adequate look out while performing the helm transfer.
To avoid damage, use extra care when attempting a helm transfer while the vessel is close to docks, piers, or other fixed items
or when near other vessels.
Zero Effort Features
a - Shift levers in neutral position
b - Trim switch
c - Throttle levers at the idle position
90-8M0128973 eng MAY 2017 Page 15
Section 1 - Getting to Know Your Power Package
Shift lever ‑ Shift functions are controlled by the movement of the shift lever. Shift into reverse by moving the shift lever to its
aft position. Shift into neutral by moving the shift lever to its center position. Shift into forward by moving the shift lever to its
forward position.
Throttle lever ‑ Throttle functions are controlled by the movement of the throttle lever. Increase the RPM by moving the throttle
lever forward. Achieve wide‑open throttle (WOT) by placing the throttle lever in its full forward position. Decrease RPM by
moving the throttle lever back. Achieve minimum RPM (idle) by placing the throttle lever in its full aft position.
Trim/tilt switch ‑ Refer to Power Trim.
Power Trim
Power trim allows the operator to adjust the sterndrive angle while underway, to provide the ideal boat angle for varying load
and water conditions. Also, the trailering feature allows the operator to raise and lower the sterndrive unit for trailering,
beaching, launching, low speed (below 1200 RPM engine speed), and shallow water operation.
WARNING
!
Excessive trim can cause serious injury or death at high speeds. Use caution when trimming the sterndrive, and never trim
out beyond the gimbal ring support flanges while the boat is underway or at engine speeds above 1200 RPM.
For best performance trim the sterndrive unit so that the boat bottom is at a 3–5° angle to the water.
3 - 5
mc79528
Trimming sterndrive unit up/out can:
• 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 ventilation
• Cause engine overheating if trimmed up/out to a point where any cooling water intake holes are above the waterline
mc78529
Trimming sterndrive 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
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Section 1 - Getting to Know Your Power Package
• 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 steering or over steering if any turn is attempted or if a
significant wave is encountered.
mc79530
Single Engine Trim/Trailer
Single engine applications will have a button that can be pressed to trim the sterndrive unit up or down.
To raise the sterndrive unit for trailering, beaching, launching, low speed (below 1200 RPM), and shallow water operation push
the trim button to raise the sterndrive unit to the full up/out position.
Some controls also have a trailer button that trims the sterndrive to a position suitable for trailer purposes only.
NOTE: The DTS control system limits the extent to which the sterndrive unit can be trimmed up/out when engine speed is
above 3500 RPM.
Dual Engine Trim/Trailer
NOTICE
If using external tie bars, raising or lowering the drives independently of each other can damage the drive and steering
systems. If using an external tie bar, raise and lower all drives together as a unit.
Dual engine applications may have a single integral button to operate both sterndrive units simultaneously or may have
separate buttons for each sterndrive unit.
Some controls also have a trailer button that trims the sterndrives to a position suitable for trailer purposes only.
Electrical System Overload Protection
If an electrical system overload occurs, a fuse will fail or the circuit breaker will open. The cause must be found and corrected
before replacing the fuse or resetting the circuit breaker.
NOTE: In an emergency, when you must operate the engine and cannot locate the cause for the high current draw, turn off or
disconnect all accessories connected to the engine and instrumentation wiring. Reset the circuit breaker. If the breaker remains
open, the electrical overload has not been eliminated. Contact your authorized dealer.
To access the circuit breaker and fuses, remove the outside engine cover. Pull the outside engine cover up to remove it from
the four rubber mount grommets.
90-8M0128973 eng MAY 2017 Page 17
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b
c
b
d
e
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Section 1 - Getting to Know Your Power Package
The circuit breaker provides protection for the engine wiring harness and the instrumentation power lead.
All of the engine protection fuses are located at the front of the engine. To access the fuses, disengage the fuse holders from
the electrical plate assembly.
Mechanical engine, freshwater
cooled shown, others similar
a - Oxygen sensor fuses (4)
b - Spare fuse
c - Engine and trim relays
d - Fuel injectors
e - Alternator and fuel pump relay
f - Ignition coils
g - Malfunction indicator lamp
(MIL)
DTS engine, freshwater cooled
shown, others similar
a - Oxygen sensor fuses (4)
b - Spare fuse
c - Engine and trim relays
d - DTS helm power
e - Fuel injectors
Page 18 90-8M0128973 eng MAY 2017
f - Alternator and fuel pump relay
g - Ignition coils
h - Malfunction indicator lamp
(MIL)
a
b
56871
a
b
c
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43608
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Section 1 - Getting to Know Your Power Package
A 90‑amp fuse located near the flame arrestor, protects the engine power harness if an electrical overload occurs. The fuse is
translucent so it can be inspected if the fuse has failed and is open.
a - 90‑amp fuse
b - Hot stud
A 15‑amp fuse located at the aft end of the engine, protects the accessory circuits.
a - Cover
b - 15‑amp fuse
c - Accessory harness
This power package uses a clean power harness that is connected to the engine starting battery. This clean power harness
minimizes an excessive voltage drop to the engine and drive digital control electrical system. This harness is protected by a
5‑amp fuse and is located near the engine starting battery.
a - 5‑amp fuse
b - Positive battery terminal (harness lead with fuse)
c - Negative battery terminal
Visual and Audio Warning Systems
Service Engine Light and OBD‑M MIL Kit
Boats powered by emissions control technology (ECT) catalyzed engines must be equipped with a SmartCraft‑enabled gauge
capable of displaying the service engine icon, or a dash‑mounted service engine light. Malfunction indicator lamp (MIL) kits
containing a dash‑mounted service engine light and a special harness that connects to the engine harness may be purchased
separately.
90-8M0128973 eng MAY 2017 Page 19
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ON ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1
1
1
1
1
1
1
1
1
1
1
OFF
33402
a
b
53403
a
b
ON
6
OFF
ON ON
OFF
ON
OFF
ON
OFF
ON
OFF
1
1
1
1
1
1
1
1
1
OFF
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Section 1 - Getting to Know Your Power Package
The service engine icon or MIL will provide a visual indication of a malfunction with the engine's emission control system and
will remain illuminated while the OBD‑M fault is active.
SC 1000 gauge and service engine light
Testing the OBD-M Malfunction Indicator Lamp (MIL)
1. Turn the ignition switch to the on position without cranking the engine.
2. The service engine icon and MIL will remain illuminated for four seconds if the visual indication system is functioning
correctly.
Audio Warning System
IMPORTANT: The audio warning system alerts the operator that a problem has occurred. It does not protect the engine from
damage.
Most faults cause the warning horn circuit to activate. How the warning horn activates depends on the severity of the problem.
There are two warning horn states:
• Caution
• Critical
There is also an alarm that sounds if the helm has not been properly configured using the G3 service tool.
Caution
If a caution state is detected, the audio warning system will sound for six one‑second intervals.
a - Horn (on or off)
b - Time (in seconds)
Critical
If a critical state is detected, the audio warning system sounds for six seconds and then turns off.
a - Horn (on or off)
b - Time (in seconds)
Nonconfigured Alarm–DTS Only
If the helm has not been properly configured using the G3 service tool, the audio warning system will sound for five one‑second
intervals.
Horn (on or off)
a b - Time (in seconds)
Page 20 90-8M0128973 eng MAY 2017
Section 1 - Getting to Know Your Power Package
Testing the Audio Warning System
1. Turn the key switch to the on position without cranking the engine.
2. Listen for the audio alarm. The alarm will sound if the system is functioning correctly.
Guardian Strategy
The MerCruiser Engine Guardian system reduces the potential for engine damage by restricting engine power when the PCM
detects a potential problem. Below are some examples of what Engine Guardian monitors:
• Oil pressure
• Engine overspeed
• Exhaust manifold temperature
IMPORTANT: Engine Guardian can reduce power anywhere from 100% to idle, depending on the severity of the problem. If
forced to idle, boat speed might not respond to throttle operation.
The PCM stores the fault for diagnostics. For example, if the water inlet becomes partially blocked, Engine Guardian reduces
the available power level of the engine to help prevent damage from decreased water flow to the engine. If the debris passes
through, and full water flow is restored, Engine Guardian restores engine power to normal.
90-8M0128973 eng MAY 2017 Page 21
Section 1 - Getting to Know Your Power Package
Notes:
Page 22 90-8M0128973 eng MAY 2017
Table of Contents
Section 2 - On the Water
Section 2 - On the Water
Additional Operation Instructions for Joystick Piloting
Sterndrive (JPS)................................................................... 24
Safe Boating Recommendations.......................................... 24
Carbon Monoxide Exposure................................................. 25
Be Alert To Carbon Monoxide Poisoning ..................... 25
Stay Clear of Exhaust Areas ........................................ 25
Good Ventilation .......................................................... 25
Poor Ventilation ........................................................... 26
Basic Boat Operation ........................................................... 26
Launching and Boat Operation...................................... 26
Operation Chart ..................................................... 26
Starting and Stopping the Engine.................................. 27
Starting the Engine ................................................ 27
Stopping the Engine .............................................. 28
Starting the Engine After It Has Stopped While In Gear—
Non‑DTS Applications................................................... 28
Throttle Only Operation................................................. 28
Trailering the Boat......................................................... 28
Freezing Temperature Operation.................................. 28
Drain Plug and Bilge Pump............................................28
Protecting People in the Water............................................. 29
While You Are Cruising ................................................ 29
While Boat Is Stationary ............................................... 29
High‑Speed and High‑Performance Operation..................... 29
Passenger Safety in Pontoon Boats and Deck Boats.......... 29
Boats Having an Open Front Deck ............................... 29
Boats With Front‑Mounted, Raised Pedestal Fishing
Seats ............................................................................ 29
Wave and Wake Jumping..................................................... 30
Impact with Underwater Hazards......................................... 30
Drive Unit Impact Protection ......................................... 31
Operating with Low Water Inlets in Shallow Water............... 31
Conditions Affecting Operation............................................. 31
Weight Distribution (Passengers and Gear) Inside the
Boat............................................................................... 31
The Bottom of the Boat.................................................. 32
Cavitation....................................................................... 32
Ventilation...................................................................... 32
Elevation and Climate.................................................... 32
Propeller Selection.........................................................32
General Information ............................................... 32
Engine RPM Limiter .............................................. 33
Getting Started..................................................................... 33
20‑Hour Break‑In Period................................................ 33
After the Break‑In Period............................................... 33
End of First Season Checkup........................................ 33
2
90-8M0128973 eng MAY 2017 Page 23
Section 2 - On the Water
Additional Operation Instructions for Joystick Piloting Sterndrive (JPS)
Refer to the JPS Operation Manual for additional important operation and maintenance instructions if your boat is equipped
with JPS.
Safe Boating Recommendations
To safely enjoy the waterways, familiarize yourself with local and all other governmental boating regulations and restrictions
and consider the following suggestions.
Know and obey all nautical rules and laws of the waterways.
• We recommend that all powerboat operators complete a boating safety course. In the U.S., the U.S. Coast Guard Auxiliary,
the Power Squadron, the Red Cross, and your state or provincial boating law enforcement agency provide courses. For
more information in the U.S., call the Boat U.S. Foundation at 1‑800‑336‑BOAT (2628).
Perform safety checks and required maintenance.
• Follow a regular schedule and ensure that all repairs are properly made.
Check safety equipment onboard.
• Here are some suggestions of the types of safety equipment to carry when boating:
Approved fire extinguishers
Signal devices: flashlight, rockets or flares, flag, and whistle or horn
Tools necessary for minor repairs
Anchor and extra anchor line
Manual bilge pump and extra drain plugs
Drinking water
Radio
Paddle or oar
Spare propeller, thrust hubs, and an appropriate wrench
First aid kit and instructions
Waterproof storage containers
Spare operating equipment, batteries, bulbs, and fuses
Compass and map or chart of the area
Personal flotation device (one per person onboard)
Watch for signs of weather change and avoid foul weather and rough‑sea boating.
Tell someone where you are going and when you expect to return.
Passenger boarding.
• Stop the engine whenever passengers are boarding, unloading, or are near the back (stern) of the boat. Shifting the drive
unit into neutral is not sufficient.
Use personal flotation devices.
• Federal law requires that there be a U.S. Coast Guard‑approved life jacket (personal flotation device), correctly sized and
readily accessible for every person onboard, plus a throwable cushion or ring. We strongly advise that everyone wear a life
jacket at all times while in the boat.
Prepare other boat operators.
• Instruct at least one person onboard in the basics of starting and operating the engine and boat handling in case the driver
becomes disabled or falls overboard.
Do not overload your boat.
• Most boats are rated and certified for maximum load (weight) capacities (refer to your boat's capacity plate). Know your
boat's operating and loading limitations. Know if your boat will float if it is full of water. When in doubt, contact your
authorized Mercury Marine dealer or the boat manufacturer.
Ensure that everyone in the boat is properly seated.
• Do not allow anyone to sit or ride on any part of the boat that was not intended for such use. This includes the backs of
seats, gunwales, transom, bow, decks, raised fishing seats, and any rotating fishing seat. Passengers should not sit or ride
anywhere that sudden unexpected acceleration, sudden stopping, unexpected loss of boat control, or sudden boat
movement could cause a person to be thrown overboard or into the boat. Ensure that all passengers have a proper seat
and are in it before any boat movement.
Page 24 90-8M0128973 eng MAY 2017
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