Mercury 350 MAG, SeaCore 350 MAG, 377 MAG, SeaCore 377 MAG User Manual

NOTE: The following applies to CE‑marked products only.

Declaration of Conformity—Mercury MerCruiser

This sterndrive or inboard engine when installed in accordance to Mercury MerCruiser’s instructions complies with the requirements of the following directives by meeting the associated standards, as amended:
Recreational Craft Propulsion Engines with the Requirements of Directive 94/25/EC as amended by 2003/44/EC
Address: 3003 N. Perkins Road
Town: Stillwater, OK Post Code: 74075 Country: USA
Name of Authorized Representative: Brunswick Marine in EMEA Inc.
Address: Parc Industriel de Petit‑Rechain
Town: Verviers Post Code: 4800 Country: Belgium
90-8M0050539 511
Name of Notified Body for exhaust emission assessment: Det Norske Veritas AS
Address: Veritasveien 1
Town: Hovik Post Code: 1322 Country: Norway ID Number: 0575
Conformity assessment module used for exhaust emissions:
Conformity assessment module used for noise emissions:
Other Community Directives applied: Electromagnetic Compatibility Directive 2004/108/EC
Description of Engines and Essential Requirements
Engine Type Fuel Type Combustion Cycle
☒ z or sterndrive with integral exhaust ☒ Petrol ☒ 4 stroke
Identification of Engines Covered by This Declaration of Conformity
Name of engine family:
Vazer 100 1A035000 RCD-H-1
Vazer 100 ECT 1A035000 RCD-H-1
3.0 TKS 0W319169 RCD-H-1
3.0 MPI ECT 1A300000 RCD-H-1
4.3 TKS 0W319169 RCD-H-1
4.3 MPI 0W319169 RCD-H-1
4.3 MPI ECT 1A300000 RCD-H-1
SeaCore 4.3 0W319169 RCD-H-1
5.0 MPI 0W319169 RCD-H-1
SeaCore 5.0 0W319169 RCD-H-1
5.0 MPI ECT 1A300000 RCD-H-1
SeaCore 5.0 ECT 1A300000 RCD-H-1
350 MAG 0W319169 RCD-H-1
SeaCore 350 MAG 0W319169 RCD-H-1
350 MAG ECT 1A300000 RCD-H-1
SeaCore 350 MAG ECT 1A300000 RCD-H-1
377 MAG 0W319169 RCD-H-1
SeaCore 377 MAG 0W319169 RCD-H-1
Unique engine identification number: starting serial number
B+C B+D B+E B+F G H
A Aa GH
EC Module H certificate number:
*8M0050539*

© 2011 Mercury Marine 350/377 MAG and SeaCore 350/377 MAG—All Models

Name of engine family:
377 MAG ECT 1A343300 RCD-H-1
496 MAG 0W319169 RCD-H-1
SeaCore 496 MAG 0W319169 RCD-H-1
496 MAG H.O. 0W319169 RCD-H-1
SeaCore 496 MAG H.O. 0W319169 RCD-H-1
496 MAG ECT 1A300000 RCD-H-1
SeaCore 496 MAG ECT 1A300000 RCD-H-1
496 MAG H.O. ECT 1A300000 RCD-H-1
SeaCore 496 MAG H.O. ECT 1A300000 RCD-H-1
8.2 MAG 1A351489 RCD-H-1
SeaCore 8.2 MAG 1A351489 RCD-H-1
8.2 MAG ECT 1A350340 RCD-H-1
SeaCore 8.2 MAG ECT 1A350340 RCD-H-1
8.2 MAG H.O. 1A351489 RCD-H-1
SeaCore 8.2 MAG H.O. 1A351489 RCD-H-1
8.2 MAG H.O. ECT 1A350340 RCD-H-1
SeaCore 8.2 MAG H.O. ECT 1A350340 RCD-H-1
Unique engine identification number: starting serial number
EC Module H certificate number:
Essential requirements
Annex 1.B—Exhaust Emissions
B.1 engine identification
B.2 exhaust emission requirements ☒* *EN ISO 8178‑1:1996
B.3 durability
B.4 owner's manual ISO 8665:1995
Annex 1.C—Noise Emissions
C.1 Noise emission levels ☒* *EN ISO 14509
C.2 Owner's manual Owner's manual
This declaration of conformity is issued under the sole responsibility of the manufacturer. I declare on behalf of the engine manufacturer that the engine(s) mentioned above complies (comply) with all applicable essential requirements in the way specified.
Name / function:
Mark Schwabero, President, Mercury Marine
Regulatory contact: Regulations and Product Safety Department Mercury Marine W6250 W. Pioneer Road Fond du Lac, WI 54936 USA
standards other normative document/ method technical file
Signature and title:
Date and place of issue:
January 28, 2011 Stillwater, Oklahoma, USA
Please specify in more detail (* = mandatory standard)

Identification Record

Please record the following information:
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
The serial numbers are the manufacturer’s keys to numerous engineering details that apply to your Mercury MerCruiser® power package. When contacting your Authorized Mercury 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, USA. Printed in USA. © 2011, Mercury Marine Mercury, Mercury Marine, MerCruiser, Mercury MerCruiser, Mercury Racing, Mercury Precision Parts, Mercury Propellers,
Mariner, Quicksilver, Alpha, Axius, Bravo One, Bravo Two, Bravo Three, K‑Planes, MerCathode, OptiMax, Precision Pilot, Pro Max, SeaCore, Skyhook, SmartCraft, Sport‑Jet, Total Command, Verado, VesselView, Zero Effort, Zeus, #1 On The Water, M with Waves logo, Mercury with Waves logo, and SmartCraft logo are all registered trademarks of Brunswick Corporation. Mercury Product Protection logo is a registered service mark of Brunswick Corporation.

Welcome

You have selected one of the finest marine power packages available. It incorporates numerous design features to assure operating ease and durability.
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, Maintenance and Warranty 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 Mercury MerCruiser products. We sincerely hope your boating will be pleasant! Mercury MerCruiser

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 Sections of this manual. The warranty statement 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.

Read This Manual Thoroughly

IMPORTANT: If you don’t understand any portion of this manual, contact your dealer for a demonstration of actual starting and operating procedures.

Notice

Throughout this publication, and on your power package, dangers, warnings, cautions, and notices, accompanied by the
International Hazard Symbol !, may be used to alert the installer/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 they warn of. Strict compliance with these special instructions while performing the service, plus common sense operation, are major accident prevention measures.
DANGER
!
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
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.
WARNING
!
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, Maintenance and Warranty 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.

TABLE OF CONTENTS

Section 1 - Warranty
Warranty Registration: United States and Canada....................2
Warranty Registration: Outside the United States and Canada. 2
Transfer of Warranty..................................................................2
Mercury Installation Quality Certification Program.....................3
Mercury Product Protection Plan: United States and Canada...4 Mercury MerCruiser Limited Warranty (Gasoline‑Fueled
Products Only) ..........................................................................4
3‑Year Limited Warranty Against Corrosion..............................6
4‑Year Limited Corrosion Warranty: SeaCore Sterndrive Models
with Gas Engines ......................................................................7
Global Application Warranty Charts—350/377 MAG ECT and
SeaCore 350/377 MAG ECT.....................................................9
Warranty for Consumer Applications..................................9
Warranty for Commercial Applications...............................9
Warranty for Government Applications.............................10
Global Application Warranty Charts—350/377 MAG and
SeaCore 350/377 MAG............................................................10
Warranty for Consumer Applications................................10
Warranty for Commercial Applications.............................11
Warranty for Government Applications.............................11
Emission Control Warranty Information...................................11
Section 2 - Getting to Know Your Power Package
Additional Operation Instructions for Axius Systems ..............22
Identification.............................................................................22
Engine Serial Number Decal MPI.....................................22
Alpha Sterndrive Decal Identification................................22
Alpha Transom Serial Number.........................................23
Bravo Sterndrive Serial Number and Identification...........23
Bravo Transom Serial Number.........................................24
Lanyard Stop Switch................................................................24
Instrumentation—350/377 MAG and SeaCore 350/377 MAG. 25
Digital Gauges....................................................................25
Analog Gauges...................................................................26
Instrumentation—350/377 MAG ECT and SeaCore 350/377
MAG ECT.................................................................................26
VesselView.......................................................................26
Digital Gauges..................................................................27
Analog Gauges.................................................................28
Remote Controls (Non‑DTS Models).......................................28
Remote Controls...............................................................28
Panel Mount Features..................................................29
Console Mount Features..............................................29
Remote Controls (DTS Models)...............................................30
Remote Controls...............................................................30
Panel Mount Features......................................................30
Console Mount Features ‑ Single Engine.........................31
Slim Binnacle Console Mount Features ‑ Single Engine..31
Console Mount Features‑ Dual Engine.............................32
Synchronizing Dual Engines.............................................32
Dual Helm Station Transfer..............................................33
Synchronizing Dual Helms Prior To Station Transfer...33
Zero Effort Features..........................................................34
Dual Console Control with CAN Trackpad Features and
Operation.................................................................................34
Important Information........................................................11
Emission Control Information Label..................................12
Owner Responsibility....................................................13
California Emissions Limited Warranty—350/377 MAG ECT
and SeaCore 350/377 MAG ECT.....................................13
What Is Covered...........................................................13
Duration of Coverage...................................................14
How to Obtain Warranty Coverage...............................14
What Mercury Will Do...................................................14
What Is Not Covered....................................................14
Disclaimers and Limitations..........................................15
California Emission Control Warranty Statement—350/377
MAG ECT and SeCore 350/377 MAG ECT......................15
Your Warranty Rights and Obligations.........................15
Manufacturer's Warranty Coverage..............................15
Owner's Warranty Responsibilities...............................15
U.S. EPA Emissions Limited Warranty.............................15
Emission Control System Components............................15
Emission Certification Star Label.............................................16
Hang Tag.................................................................................18
Dual‑Handle Console Control With CAN Trackpad: Features
and Operation...................................................................34
Synchronizing Engines.....................................................35
Helm Transfer...................................................................36
Synchronizing Helms Prior to Transfer.........................36
Zero Effort Features..........................................................37
Power Trim...............................................................................37
Single Engine Trim/Trailer..................................................38
Dual Engine Trim/Trailer....................................................38
Electrical System Overload Protection—350/377 MAG ECT and
SeaCore 350/377 MAG ECT...................................................38
Electrical System Overload Protection—350/377 MAG and
SeaCore 350/377 MAG............................................................42
Visual and Audio Warning Systems—350/377 MAG ECT and
SeaCore 350/377 MAG ECT...................................................44
Service Engine Light and OBD‑M MIL Kit.........................44
Testing the OBD‑M Malfunction Indicator Lamp (MIL). 44
Audio Warning System.....................................................44
Caution.........................................................................45
Severe..........................................................................45
Testing the Audio Warning System..............................45
Guardian Strategy.............................................................45
Audio Warning System—350/377 MAG and SeaCore350/377
MAG.........................................................................................46
Audio Warning System.....................................................46
Caution.........................................................................46
Severe..........................................................................46
Testing the Audio Warning System..............................46
Engine Guardian Strategy................................................46
90-8M0050539 eng MAY 2011 Page i
Section 3 - On the Water
Additional Operation Instructions for Axius Systems .............50
Safe Boating Suggestions...................................................... 50
Carbon Monoxide Exposure...................................................51
Be Alert To Carbon Monoxide Poisoning..........................51
Stay Clear of Exhaust Areas.............................................51
Good Ventilation .............................................................. 51
Poor Ventilation ............................................................... 52
Basic Boat Operation (Non‑DTS Models)...............................52
Launching and Boat Operation........................................ 52
Operation Chart...........................................................52
Starting and Stopping the Engine.................................... 53
Starting the Engine......................................................53
Stopping the Engine....................................................53
Starting the Engine After It Has Been Stopped While In
Gear................................................................................ 54
Throttle‑Only Operation...................................................54
Trailering the Boat...........................................................54
Freezing Temperature Operation....................................54
Drain Plug and Bilge Pump............................................. 54
Basic Boat Operation (DTS Models)...................................... 54
Launching and Boat Operation........................................ 54
Operation Chart...........................................................54
Starting and Stopping the Engine.................................... 55
Starting the Engine......................................................55
Stopping the Engine....................................................56
Throttle‑Only Operation...................................................56
Trailering the Boat...........................................................56
Freezing Temperature Operation....................................56
Drain Plug and Bilge Pump............................................. 57
Protecting People in the Water...............................................57
While You Are Cruising.....................................................57
While Boat Is Stationary................................................... 57
High‑Speed and High‑Performance Operation....................... 57
Passenger Safety in Pontoon Boats and Deck Boats............ 57
Boats Having an Open Front Deck...................................57
Boats With Front‑Mounted, Raised Pedestal Fishing Seats
..........................................................................................58
Wave and Wake Jumping.......................................................58
Impact with Underwater Hazards........................................... 58
Drive Unit Impact Protection.............................................59
Operating with Low Water Inlets in Shallow Water................. 59
Conditions Affecting Operation...............................................59
Weight Distribution (Passengers and Gear) Inside the
Boat.................................................................................59
The Bottom of the Boat................................................... 60
Cavitation........................................................................ 60
Ventilation........................................................................60
Elevation and Climate..................................................... 60
Propeller Selection.......................................................... 60
Getting Started....................................................................... 61
20‑Hour Break‑In Period................................................. 61
After the Break‑In Period.................................................61
End of First Season Checkup..........................................61
Section 4 - Specifications
350/377 MAG ECT and SeaCore 350/377 ECT—
Specifications......................................................................... 64
Fuel Requirements..........................................................64
Fuel Ratings................................................................64
Using Reformulated (Oxygenated) Gasoline (USA
Only)............................................................................64
Gasoline Containing Alcohol.......................................64
Engine Oil........................................................................64
350 MAG ECT, SeaCore 350 MAG ECT........................ 65
377 MAG ECT, SeaCore 377 MAG ECT........................ 66
350/377 MAG and SeaCore 350/377 MAG—Specifications.. 66
Fuel Requirements..........................................................66
Fuel Ratings................................................................66
Using Reformulated (Oxygenated) Gasolines (USA
Only)............................................................................67
Section 5 - Maintenance
Additional Operation Instructions for Axius Systems .............73
Owner/Operator Responsibilities............................................73
Dealer Responsibilities...........................................................73
Maintenance...........................................................................73
Do‑It‑Yourself Maintenance Suggestions...............................73
Inspection............................................................................... 74
Gasolines Containing Alcohol..................................... 67
Engine Oil........................................................................67
350 MAG, SeaCore 350 MAG.........................................68
377 MAG, SeaCore 377 MAG.........................................69
Fluid Specifications.................................................................69
Engine—350/377 MAG ECT and SeaCore 350/377 MAG
ECT................................................................................. 69
Engine—350/377 MAG and SeaCore 350/377 MAG......69
Alpha Sterndrive..............................................................70
Bravo Sterndrives............................................................70
Power‑Assisted Steering and Power Trim Fluids............70
Approved Power‑Assisted Steering Fluids..................70
Approved Power Trim Fluids.......................................70
Maintenance Schedules—350/377 MAG ECT and SeaCore
350/377 MAG ECT................................................................. 74
Routine Maintenance...................................................... 74
Scheduled Maintenance..................................................75
Maintenance Schedules—350/377 MAG and SeaCore 350/377
MAG....................................................................................... 76
Routine Maintenance...................................................... 76
Page ii 90-8M0050539 eng MAY 2011
Scheduled Maintenance...................................................77
Maintenance Log.....................................................................78
Engine Oil—350/377 MAG ECT and SeaCore 350/377 MAG
ECT..........................................................................................79
Checking...........................................................................79
Filling................................................................................79
Changing Oil and Filter.....................................................80
Engine Oil Drain Pump.....................................................80
Changing Filter.................................................................80
Engine Oil—350/377 MAG and SeaCore 350/377 MAG.........81
Checking...........................................................................81
Filling................................................................................81
Changing Oil and Filter.....................................................82
Engine Oil Drain Pump.....................................................82
Changing Filter.................................................................82
Power Steering Fluid................................................................83
Power Steering Fluid—350/377 MAG ECT and SeaCore
350/377 MAG ECT...........................................................83
Checking.......................................................................83
Filling............................................................................83
Changing......................................................................83
Power Steering Fluid—350/377 MAG and SeaCore 350/377
MAG..................................................................................83
Checking.......................................................................83
Filling............................................................................84
Changing......................................................................84
Engine Coolant—350/377 MAG ECT and SeaCore 350/377 MAG
ECT..........................................................................................84
Checking...........................................................................84
Filling................................................................................85
Changing .........................................................................86
Engine Coolant—350/377 MAG and SeaCore 350/377 MAG. 86
Checking............................................................................86
Filling..................................................................................87
Changing ...........................................................................87
Alpha Sterndrive Gear Lube....................................................87
Checking............................................................................88
Filling..................................................................................88
Changing............................................................................88
Sterndrive Gear Lube...............................................................90
Checking...........................................................................90
Filling................................................................................90
Changing..........................................................................90
Power Trim Fluid......................................................................92
Checking............................................................................92
Filling..................................................................................92
Changing............................................................................93
Battery......................................................................................93
Multiple EFI Engine Battery Precautions..........................93
Scheduled Maintenance Specifically for 350/377 MAG ECT and
SeaCore 350/377 MAG ECT ..................................................93
Cleaning the Flame Arrestor.............................................93
Positive Crankcase Ventilation Valve (PCV)................94
Changing...................................................................94
Cleaning the IAC Muffler...................................................95
Scheduled Maintenance Specifically for 350/377 MAG and
SeaCore 350/377 MAG............................................................96
Cleaning the Flame Arrestor.............................................96
Positive Crankcase Ventilation Valve (PCV)................97
Changing...................................................................97
Water‑Separating Fuel Filter (MPI)..........................................97
Water‑Separating Fuel Filter.............................................97
GEN II Models..................................................................97
Removal.......................................................................97
Installation....................................................................98
GEN III Models.................................................................98
Removal.......................................................................98
Installation....................................................................99
Lubrication...............................................................................99
Steering System...............................................................99
Throttle Cable.................................................................101
Shift Cable ‑ Typical........................................................101
Sterndrive U‑joint Shaft Splines And O‑rings (Sterndrive Unit
Removed).......................................................................102
Engine Coupler...............................................................102
Driveshaft Extension Models..........................................103
Propellers...............................................................................103
Propeller Repair..............................................................103
Alpha Propeller Removal................................................103
Alpha Propeller Installation.............................................103
Bravo One Propeller Removal........................................104
Bravo One Propeller Installation.....................................104
Bravo Two Propeller Removal........................................105
Bravo Two Propeller Installation.....................................106
Bravo Three Propeller Removal.....................................106
Bravo Three Propeller Installation..................................107
Serpentine Drive Belt.............................................................109
Checking..........................................................................109
Replacing Belt and/or Adjusting Tension.........................109
Corrosion Protection..............................................................110
Corrosion Information.....................................................110
Maintaining Ground Circuit Continuity............................110
MerCathode System Battery Requirements...................110
Anodes and MerCathode System Locations..................110
Checking the Quicksilver MerCathode System..............111
Power Package Exterior Surfaces..................................112
Boat Bottom Care...........................................................112
Anti‑fouling Paint.............................................................112
Sterndrive Surface Care.................................................114
Flushing the Power Package—Alpha....................................114
Flushing Attachments.......................................................115
Sterndrive Water Pickups.................................................115
Flushing the Power Package—Bravo....................................116
General Information........................................................116
Flushing the Power Package..........................................116
Flushing Attachments.................................................116
Sterndrive Water Pickups...........................................117
Alternative Water Pickups..........................................118
SeaCore Power Package Flushing Procedure...............120
Models Using The Sterndrive Water Pickup...............120
Section 6 - Storage
Cold Weather or Extended Storage.......................................124
Preparing Power Package for Storage...........................124
Engine and Fuel System Preparation.........................124
Draining the Seawater System—350/377 MAG ECT and
SeaCore 350 MAG ECT........................................................125
90-8M0050539 eng MAY 2011 Page iii
Draining the Seawater System.......................................125
Drain System Identification............................................125
Air Actuated Single Point Drain System....................126
Manual Single Point Drain System (Alpha)...............126
Three Point Manual Drain System............................127
Multi‑Point Drain (MPD) System...............................127
Air Actuated Single Point Drain System........................128
Boat in the Water......................................................128
Boat out of the Water................................................130
Manual Single‑Point Drain System (Alpha)...................132
Boat in the Water......................................................132
Boat out of the Water................................................133
Three‑Point Manual Drain System................................133
Boat in the Water......................................................133
Boat out of the Water................................................134
Draining the Sterndrive..................................................135
Draining the Seawater System—350/377 MAG and SeaCore
350/377 MAG.......................................................................136
Draining the Seawater System......................................136
Drain System Identification............................................136
Section 7 - Troubleshooting
Air Actuated Single Point Drain System....................136
Manual Single Point Drain System............................137
Three Point Manual Drain System............................137
Multi‑Point Drain (MPD) System...............................137
Air Actuated Single Point Drain System........................138
Boat in the Water......................................................138
Boat out of the Water................................................140
Manual Single‑Point Drain System................................142
Boat in the Water......................................................142
Boat out of the Water................................................142
Three‑Point Manual Drain System................................143
Boat in the Water......................................................143
Boat out of the Water................................................144
Multi‑Point Drain (MPD) System...................................145
Draining the Sterndrive..................................................146
Draining Water From the Gen III Cool Fuel Module.............147
Battery Storage.....................................................................148
Recommissioning the Power Package.................................148
Diagnosing EFI Problems.....................................................150
Diagnosing DTS Problems...................................................150
Additional Operation Instructions for Axius Systems ...........150
Engine Guardian System......................................................150
Troubleshooting Charts........................................................150
Starter Motor Will Not Crank Engine, or Cranks Slowly 150
Engine Will Not Start or Is Hard to Start........................150
Engine Runs Rough, Misses, or Backfires....................151
Poor Performance.........................................................151
Excessive Engine Temperature....................................151
Section 8 - Customer Assistance Information
Owner Service Assistance....................................................156
Local Repair Service.......................................................156
Service Away From Home..............................................156
Stolen Power Package...................................................156
Attention Required After Submersion.............................156
Replacement Service Parts............................................156
Parts and Accessories Inquiries................................156
Section 9 - Checklists
Insufficient Engine Temperature...................................151
Low Engine Oil Pressure...............................................152
Battery Will Not Recharge.............................................152
Remote Control Is Difficult to Move, Has Excessive Play, or
Makes Unusual Sounds................................................152
Steering Wheel Jerks or Is Difficult to Turn...................152
Power Trim Does Not Operate (Motor Does Not
Operate)........................................................................152
Power Trim Does Not Operate (Motor Operates but
Sterndrive Unit Does Not Move)....................................153
Resolving a Problem.......................................................156
Contact Information for Mercury Marine Customer Service
........................................................................................157
Ordering Literature...............................................................157
United States and Canada..............................................157
Outside the United States and Canada..........................158
Predelivery Inspection (PDI).................................................160 Customer Delivery Inspection (CDI).....................................162
Page iv 90-8M0050539 eng MAY 2011
Section 1 - Warranty
Section 1 - Warranty
Table of Contents
Warranty Registration: United States and Canada................. 2
Warranty Registration: Outside the United States and Canada
................................................................................................ 2
Transfer of Warranty............................................................... 2
Mercury Installation Quality Certification Program................. 3
Mercury Product Protection Plan: United States and Canada
................................................................................................ 4
Mercury MerCruiser Limited Warranty (Gasoline‑Fueled
Products Only) ....................................................................... 4
3‑Year Limited Warranty Against Corrosion........................... 6
4‑Year Limited Corrosion Warranty: SeaCore Sterndrive
Models with Gas Engines ...................................................... 7
Global Application Warranty Charts—350/377 MAG ECT and
SeaCore 350/377 MAG ECT.................................................. 9
Warranty for Consumer Applications...............................9
Warranty for Commercial Applications............................9
Warranty for Government Applications..........................10
Global Application Warranty Charts—350/377 MAG and
SeaCore 350/377 MAG........................................................ 10
Warranty for Consumer Applications.............................10
Warranty for Commercial Applications..........................11
Warranty for Government Applications..........................11
1
Emission Control Warranty Information................................ 11
Important Information.....................................................11
Emission Control Information Label...............................12
Owner Responsibility ............................................. 13
California Emissions Limited Warranty—350/377 MAG
ECT and SeaCore 350/377 MAG ECT..........................13
What Is Covered .................................................... 13
Duration of Coverage ............................................ 14
How to Obtain Warranty Coverage ....................... 14
What Mercury Will Do ............................................ 14
What Is Not Covered ............................................. 14
Disclaimers and Limitations ................................... 15
California Emission Control Warranty Statement—350/377
MAG ECT and SeCore 350/377 MAG ECT...................15
Your Warranty Rights and Obligations .................. 15
Manufacturer's Warranty Coverage ...................... 15
Owner's Warranty Responsibilities ........................ 15
U.S. EPA Emissions Limited Warranty..........................15
Emission Control System Components.........................15
Emission Certification Star Label.......................................... 16
Hang Tag.............................................................................. 18
90-8M0050539 eng MAY 2011 Page 1
Section 1 - Warranty

Warranty Registration: United States and Canada

To ensure that your warranty coverage begins promptly, your selling dealer should fill out the Warranty Registration Card completely and mail it to the factory immediately upon sale of the new product.
The Warranty Registration Card identifies the 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. A temporary Owner Warranty Registration Card will be presented to you when you purchase the product.
Upon receipt of the Warranty Registration Card at the factory, Mercury MerCruiser will send you an owner resource guide that includes your warranty registration confirmation. If you do not receive your owner resource guide within 60 days from date of new product sale, please contact your selling dealer.
Because of your selling dealer’s ongoing interest in your satisfaction, the product should be returned to him for warranty service. The product warranty is not effective until the product is registered at the factory.
NOTE: Registration lists must be maintained by the factory and dealer on marine products sold in the United States in the event that a safety recall notification under the Federal Boat Safety Act is required.
You may change your address at any time, including at time of warranty claim, by calling Mercury MerCruiser or sending a letter or fax to Mercury MerCruiser’s warranty registration department with your name, old address, new address, and engine serial number. Your dealer can also process this change of information.
United States customers or dealers may contact: Mercury Marine Attn: Warranty Registration Department W6250 Pioneer Road P.O. Box 1939 Fond du Lac, WI 54936-1939 920 929 5054 Fax 920 907 6663 registration_support@mercmarine.com
Canadian customers or dealers may contact: Mercury Marine Canada Limited 2395 Meadowpine Blvd. Mississauga, Canada, L5N 7W6 Fax 1 800 663 8334

Warranty Registration: Outside the United States and Canada

To ensure that your warranty coverage begins promptly, your selling dealer should fill out the warranty registration card completely and mail it to the distributor responsible for administering the warranty registration and claim program for your area.
The warranty registration card identifies your name and address, product model and serial numbers, date of sale, type of use, and the selling distributor’s and dealer’s code number, name, and address. The distributor or dealer also certifies that you are the original purchaser and user of the product. A copy of the warranty registration card, designated as the purchaser’s copy, MUST be given to you immediately after the card has been completely filled out by the selling distributor or dealer. This card represents your factory registration identification. Keep the card; if you ever need 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 forms.
In some countries, the distributor will issue a permanent (plastic) warranty registration card to you within 30 days after receiving the factory copy of the warranty registration card from your distributor or dealer. If you receive a plastic warranty registration card, you may discard the purchaser’s copy that you received from the distributor or dealer when you purchased the product. Ask your distributor or 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. See Table of Contents.
NOTE: Registration lists must be maintained by the factory and dealer on marine products sold in the United States in the event of a safety recall notification under the Federal Boat Safety Act.

Transfer of Warranty

The limited 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.
To transfer the warranty to the subsequent owner, send or fax a copy of the bill of sale or purchase agreement, new owner’s name, address and engine serial number to Mercury Marine’s warranty registration department. In the United States mail to:
Page 2 90-8M0050539 eng MAY 2011
Section 1 - Warranty
Mercury Marine Attn: Warranty Registration Department W6250 W. Pioneer Road P.O. Box 1939 Fond du Lac, WI 54936-1939 920-929-5054 Fax 920-929-5893
In Canada mail to: Mercury Marine Canada Limited 2395 Meadowpine Blvd. Mississauga, Canada, L5N 7W6 Fax 1-800-663-8334
Upon processing the transfer of warranty, Mercury Marine will send registration verification to the new owner of the product by mail.
There is no charge for this service. For products purchased outside the United States and Canada, contact the distributor in your country, or the distributor closest
to you.

Mercury Installation Quality Certification Program

15502
Mercury MerCruiser products installed by a Mercury Installation Quality Certified Manufacturer are Installation Quality certified products and may receive an additional one (1) year of limited warranty coverage.
The Installation Quality Certification program was developed to recognize MerCruiser boatbuilder customers who have achieved higher manufacturing standards. It is the first and only comprehensive manufacturer‑installation certification program in the industry.
The program has three goals:
1. To enhance overall product quality.
2. To improve the boat ownership experience.
3. To enhance overall customer satisfaction. The certification process is designed to review all facets of manufacturing and engine installation. The program is composed of
design, manufacturing and installation review stages with which builders must comply. Certification applies leading‑edge methodologies to create:
Efficiencies and best practices specific to engine installation.
World‑class assembly and component specifications.
Efficient installation processes.
Industry standard end‑of‑line test procedures
Boat builders that successfully complete the program and meet all certification requirements earn Installation Quality System Certified Manufacturer status and receive an additional one (1) year of Mercury limited factory warranty coverage on all MerCruiser‑powered boats that are registered on and after the boat builder's certification date for all worldwide registrations.
90-8M0050539 eng MAY 2011 Page 3
Section 1 - Warranty
Mercury has designated a section of our Website to promote the Installation Quality Certification Program and communicate its benefits to consumers. For a current list of MerCruiser‑powered boat brands that have earned Installation Quality Certification, visit www.mercurymarine.com/mercruiser_warranty.

Mercury Product Protection Plan: United States and Canada

IMPORTANT: Certain performance products, triple engine installations, and commercial applications are excluded from the Mercury Product Protection Plan program.
The Mercury Product Protection Plan provides coverage against unexpected mechanical and electrical breakdowns that may occur beyond the standard limited warranty. The plan may be purchased up to twelve months after the original engine registration date and is available with terms ranging from one to five years.
The optional Mercury Product Protection Plan is the only factory authorized extended warranty plan available for your engine. See your participating Mercury MerCruiser dealer for complete program details.
Mercury MerCruiser Limited Warranty (Gasoline‑Fueled Products Only)

Mercury MerCruiser Limited Warranty (Gasoline-Fueled Products Only)

What is Covered
Mercury Marine warrants its new products to be free of defects in material and workmanship during the period described following.
Duration of Coverage
Warranty Period for Recreational Use
The warranty period begins on the date the product is first sold to a recreational‑use retail purchaser or the date on which the product is first put into service, whichever occurs first. Products installed by an Installation Quality Certified Installer receive one (1) year of additional warranty coverage. The repair or replacement of parts or the performance of service under this warranty does not extend the life of this warranty beyond its original expiration date. The warranty period is specific to the model covered; see your model for the base coverage period:
Coverage for Horizon Inboard Models, and Vazer 100 Sterndrive Models
The Limited Warranty for Horizon Inboard Models and Vazer 100 Models is four (4) years when installed by an Installation Quality Certified Installer or three (3) years for non‑certified installations.
Coverage for SeaCore Sterndrive Models
The Limited Warranty for SeaCore Sterndrive Models is four (4) years when installed by an Installation Quality Certified Installer or three (3) years for non‑certified installations.
Coverage for Tow Sports Inboard Models
The Limited Warranty for Tow Sports 5.7 TKS models is two (2) years when installed by an Installation Quality Certified Installer or one (1) year for non‑certified installations. The Limited Warranty for all other Tow Sports Inboard models is three (3) years when installed by an Installation Quality Certified Installer or two (2) years for non‑certified installations.
Coverage for All Other Models
The Limited Warranty for all other Gasoline Sterndrive and Inboard models except those described above is two (2) years when installed by an Installation Quality Certified Installer or one (1) year for non‑certified installations.
Warranty Period for Commercial Use
The warranty period begins on the date the product is first sold to a commercial‑use retail purchaser or the date on which the product is first put into service, whichever occurs first. Commercial users of these products receive warranty coverage for either one (1) year from the date of first retail sale or the accumulation of 500 hours of operation, whichever occurs first. Commercial use is defined as any work‑related or employment‑related use of the product, or any use of the product that generates income for any part of the warranty period, even if the product is only occasionally used for such purposes. The repair or replacement of parts or the performance of service under this warranty does not extend the life of this warranty beyond its original expiration date.
Transfer of Coverage
Unexpired warranty coverage can be transferred from one recreational‑use customer to a subsequent recreational‑use customer upon proper reregistration of the product. Unexpired warranty coverage cannot be transferred either to or from a commercial‑use customer.
Page 4 90-8M0050539 eng MAY 2011
Section 1 - Warranty
Termination of Coverage
Warranty coverage is terminated for used product obtained in any of the following ways:
Repossession from a retail customer
Purchase at auction
Purchase from a salvage yard
Purchase from an insurance company that obtained the product as a result of an insurance claim
Conditions That Must Be Met in Order to Obtain Warranty Coverage
Warranty coverage is available only to retail customers that purchase from a dealer authorized by Mercury Marine to distribute the product in the country in which the sale occurred, and then only after the pre‑delivery inspection process specified by Mercury Marine is completed and documented. Warranty coverage becomes available upon proper registration of the product by the authorized dealer. Inaccurate warranty registration information regarding recreational use or subsequent change of use from recreational to commercial (unless properly reregistered) may void the warranty at the sole discretion of Mercury Marine. Routine maintenance must be performed according to the maintenance schedule in the Operation, Maintenance & Warranty manual in order to obtain warranty coverage. Mercury Marine reserves the right to make any warranty coverage contingent upon proof of proper maintenance.
What Mercury Marine Will Do
Mercury Marine's sole and exclusive obligation under this warranty is limited to, at our option, repairing a defective part, replacing such part or parts with new or Mercury Marine certified remanufactured parts, or refunding the purchase price of the Mercury Marine product. Mercury Marine reserves the right to improve or modify products from time to time without assuming an obligation to modify products previously manufactured.
How to Obtain Warranty Coverage
The customer must provide Mercury Marine with a reasonable opportunity to repair and reasonable access to the product for warranty service. Warranty claims shall be made by delivering the product for inspection to a Mercury Marine dealer authorized to service the product. If the purchaser cannot deliver the product to such a dealer, written notice must be given to Mercury Marine. Mercury Marine will then arrange for the inspection and any covered repair. The purchaser in that case shall pay for all related transportation charges and travel time. If the service provided is not covered by this warranty, the purchaser shall pay for all related labor and material and any other expenses associated with that service. The purchaser shall not, unless requested by Mercury Marine, ship the product or parts of the product directly to Mercury Marine. Proof of registered ownership must be presented to the dealer at the time warranty service is requested in order to obtain coverage.
90-8M0050539 eng MAY 2011 Page 5
Section 1 - Warranty
What Is Not Covered
This limited warranty does not cover the following:
Routine maintenance items
Adjustments
Normal wear and tear
Damage caused by abuse
Abnormal use
Use of a propeller or gear ratio that does not allow the engine to run in its recommended RPM range (see the Operation, Maintenance & Warranty manual)
Operation of the product in a manner inconsistent with the recommended operation and duty cycle section of the Operation, Maintenance & Warranty manual
Neglect
Accident
Submersion
Improper installation (proper installation specifications and techniques are set forth in the installation instructions for the product)
Improper service
Use of an accessory or part that was not manufactured or sold by Mercury Marine and that damages the Mercury product
Jet pump impellers and liners
Operation with fuels, oils, or lubricants that are not suitable for use with the product (see the Operation, Maintenance & Warranty manual)
Alteration or removal of parts
Water entering the engine through the fuel intake, air intake, or exhaust system or damage to the product from insufficient cooling water caused by blockage of the cooling system by a foreign body
Running the engine out of water
Mounting the engine too high on the transom
Operating the boat with the engine over trimmed
Use of the product for racing or other competitive activity, or operating with a racing‑type lower unit at any point, even by a previous owner of the product, voids the warranty. Expenses related to haul‑out, launch, towing, storage, telephone, rental, inconvenience, slip fees, insurance coverage, loan payments, loss of time, loss of income, or any other type of incidental or consequential damages are not covered by this warranty. Also, expenses associated with the removal or replacement of boat partitions or other material in order to gain access to the product are not covered by this warranty. No individual or entity, including Mercury Marine authorized dealers, has been given authority by Mercury Marine to make any affirmation, representation, or warranty regarding the product, other than those contained in this limited warranty. If such affirmation, representation, or warranty is made, it shall not be enforceable against Mercury Marine.
DISCLAIMERS AND LIMITATIONS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED. TO THE EXTENT THAT THEY CANNOT BE DISCLAIMED, THE IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE LIFE OF THE EXPRESS WARRANTY. INCIDENTAL AND CONSEQUENTIAL DAMAGES ARE EXCLUDED FROM COVERAGE UNDER THIS WARRANTY. SOME STATES/COUNTRIES DO NOT ALLOW FOR THE DISCLAIMERS, LIMITATIONS AND EXCLUSIONS IDENTIFIED ABOVE. AS A RESULT, THEY MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER LEGAL RIGHTS WHICH VARY FROM STATE TO STATE AND COUNTRY TO COUNTRY.
3‑Year Limited Warranty Against Corrosion

3-YEAR LIMITED WARRANTY AGAINST CORROSION

What Is Covered
Mercury Marine warrants that each new Mercury, Mariner, Mercury Racing, Sport Jet, M2 Jet Drive, Tracker by Mercury Marine Outboard, MerCruiser Inboard or Sterndrive engine (Product) will not be rendered inoperative as a direct result of corrosion for the period of time described below.
Duration of Coverage
Page 6 90-8M0050539 eng MAY 2011
This limited corrosion warranty provides coverage for three (3) years from either the date the product is first sold, or the date on which the product is first put into service, whichever occurs first. The repair and replacement of parts, or the performance of service under this warranty does not extend the life of this warranty beyond its original expiration date. Unexpired warranty coverage can be transferred to subsequent (noncommercial use) purchaser upon proper re‑registration of the product. Warranty coverage is terminated for used product repossessed from a retail customer, purchased at auction, from a salvage yard, or from an insurance company that obtained the product as a result of an insurance claim.
Condition That Must Be Met in Order to Obtain Warranty Coverage
Warranty coverage is available only to retail customers that purchase from a dealer authorized by Mercury Marine to distribute the product in the country in which the sale occurred, and then only after the Mercury Marine specified pre‑delivery inspection process is completed and documented. Warranty coverage becomes available upon proper registration of the product by the authorized dealer. Corrosion prevention devices specified in the Operation, Maintenance & Warranty manual must be in use on the boat, and routine maintenance outlined in the Operation, Maintenance & Warranty manual must be timely performed (including without limitation the replacement of sacrificial anodes, use of specified lubricants, and touch‑up of nicks and scratches) in order to maintain warranty coverage. Mercury Marine reserves the right to make warranty coverage contingent upon proof of proper maintenance.
What Mercury Will Do
Mercury's sole and exclusive obligation under this warranty is limited to, at our option, repairing a corroded part, replacing such part or parts with new or Mercury Marine certified re‑manufactured parts, or refunding the purchase price of the Mercury product. Mercury reserves the right to improve or modify products from time to time without assuming an obligation to modify products previously manufactured.
How to Obtain Warranty Coverage
The customer must provide Mercury with a reasonable opportunity to repair, and reasonable access to the product for warranty service. Warranty claims shall be made by delivering the product for inspection to a Mercury dealer authorized to service the product. If purchaser cannot deliver the product to such a dealer, written notice must be given to Mercury. We will then arrange for the inspection and any covered repair. Purchaser in that case shall pay for all related transportation charges and/or travel time. If the service provided is not covered by this warranty, purchaser shall pay for all related labor and material, and any other expenses associated with that service. Purchaser shall not, unless requested by Mercury, ship the product or parts of the product directly to Mercury. Proof of registered ownership must be presented to the dealer at the time warranty service is requested in order to obtain coverage.
What Is Not Covered
This limited warranty does not cover electrical system corrosion; corrosion resulting from damage, corrosion which causes purely cosmetic damage, abuse or improper service; corrosion to accessories, instruments, steering systems; corrosion to factory installed jet drive unit; damage due to marine growth; product sold with less than a one year limited Product warranty; replacement parts (parts purchased by the Customer); products used in a commercial application. Commercial use is defined as any work or employment related use of the product, or any use of the product which generates income, for any part of warranty period, even if the product is only occasionally used for such purposes.
Section 1 - Warranty
4‑Year Limited Corrosion Warranty: SeaCore Sterndrive Models with Gas Engines

4-YEAR LIMITED CORROSION WARRANTY: SEACORE STERNDRIVE MODELS WITH GAS ENGINES

What Is Covered
Mercury Marine warrants that each new MerCruiser SeaCore engine, transom, and sterndrive package will not be rendered inoperative as a direct result of corrosion for the period of time described below.
Duration of Coverage
90-8M0050539 eng MAY 2011 Page 7
Section 1 - Warranty
This limited corrosion warranty provides coverage for four (4) years from either the date on which the MerCruiser SeaCore engine, transom, and sterndrive package is first sold or the date on which it is first put into service, whichever occurs first. The repair or replacement of parts or the performance of service under this warranty does not extend the life of this warranty beyond its original expiration date. Unexpired warranty coverage can be transferred to a subsequent (noncommercial‑use) purchaser upon proper reregistration of the product. Warranty coverage is terminated for used product obtained in any of the following ways:
Repossession from a retail customer
Purchase at auction
Purchase from a salvage yard
Purchase from an insurance company that obtained the product as a result of an insurance claim
Condition That Must Be Met in Order to Obtain Warranty Coverage
Warranty coverage is available only to retail customers that purchase from a dealer authorized by Mercury Marine to distribute the product in the country in which the sale occurred, and then only after the pre‑delivery inspection process specified by Mercury Marine is completed and documented. Warranty coverage becomes available upon proper registration of the product by the authorized dealer. Corrosion‑prevention devices specified in the Operation, Maintenance & Warranty manual must be in use on the boat, and routine maintenance outlined in the Operation, Maintenance & Warranty manual must be performed according to the maintenance schedule in the Operation, Maintenance & Warranty manual (including without limitation the replacement of sacrificial anodes, use of specified lubricants, and touch‑up of nicks and scratches) in order to maintain warranty coverage. Mercury Marine reserves the right to make warranty coverage contingent upon proof of proper maintenance.
What Mercury Marine Will Do
Mercury's sole and exclusive obligation under this warranty is limited to, at our option, repairing a corroded part, replacing such part or parts with new or Mercury Marine certified remanufactured parts, or refunding the purchase price of the Mercury product. Mercury reserves the right to improve or modify products from time to time without assuming an obligation to modify products previously manufactured.
How to Obtain Warranty Coverage
The customer must provide Mercury Marine with a reasonable opportunity to repair and reasonable access to the product for warranty service. Warranty claims shall be made by delivering the product for inspection to a Mercury Marine dealer authorized to service the product. If the purchaser cannot deliver the product to such a dealer, written notice must be given to Mercury Marine. Mercury Marine will then arrange for the inspection and any covered repair. The purchaser in that case shall pay for all related transportation charges and/or travel time. If the service provided is not covered by this warranty, the purchaser shall pay for all related labor and material, and any other expenses associated with that service. The purchaser shall not, unless requested by Mercury Marine, ship the product or parts of the product directly to Mercury Marine. Proof of registered ownership must be presented to the dealer at the time warranty service is requested in order to obtain coverage.
What Is Not Covered
This limited warranty does not cover the following:
Electrical system corrosion
Corrosion resulting from damage
Corrosion that causes purely cosmetic damage
Abuse or improper service
Corrosion to accessories, instruments, and steering systems
Corrosion to a factory‑installed jet drive unit
Damage due to marine growth
Replacement parts (parts purchased by the customer)
Product sold with less than a one‑year limited product warranty
Products used in a commercial application. Commercial use is defined as any work or employment related use of the product, or any use of the product which generates income, for any part of warranty period, even if the product is only occasionally used for such purposes.
Page 8 90-8M0050539 eng MAY 2011
Section 1 - Warranty

Global Application Warranty Charts—350/377 MAG ECT and SeaCore 350/377 MAG ECT

Warranty for Consumer Applications

Engine Model Region
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa 350 MAG EC 377 MAG EC
SeaCore 350 MAG EC SeaCore 377 MAG EC
Australia, New Zealand
Japan
South Pacific
Other Asia
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia

Warranty for Commercial Applications

Standard Factory Limited Warranty by
Certification Status of Boat Manufacturer
Not Certified
1 year 2 years 3 years
2 years 2 years 2 years
2 years 3 years 3 years
2 years 2 years 3 years
1 year 1 year 1 year
2 years 2 years 2 years
1 year 1 year 1 year
3 years 4 years 4 years
2 years 2 years 2 years
3 years 4 years 4 years
3 years 3 years 4 years
1 year 1 year 1 year
2 years 2 years 2 years
1 year 1 year 1 year
Installation Quality
Certified
Limited Corrosion
Consumer
Warranty
Engine Model
350 MAG EC 377 MAG EC SeaCore 350 MAG EC SeaCore 377 MAG EC
Region
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia
Standard Factory Limited Warranty by
Certification Status of Boat Manufacturer
Not Certified
1 year 1 year 1 year
2 years 2 years 2 years
1 year or 500 hours 1 year or 500 hours 1 year or 500 hours
Installation Quality
Certified
Commercial
Limited Corrosion
Warranty
90-8M0050539 eng MAY 2011 Page 9
Section 1 - Warranty

Warranty for Government Applications

Standard Factory Limited Warranty by
Engine Model Region
350 MAG EC 377 MAG EC SeaCore 350 MAG EC SeaCore 377 MAG EC
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia
Certification Status of Boat
Manufacturer
Not Certified
1 year 1 year 3 years
2 years 2 years 2 years
1 year or 500
hours
Installation
Quality Certified
1 year or 500
hours
Government
Limited Corrosion
Warranty
1 year or 500
hours

Global Application Warranty Charts—350/377 MAG and SeaCore 350/377 MAG

Warranty for Consumer Applications

Standard Factory Limited Warranty by
Engine Model
350 MAG 377 MAG
SeaCore 350 MAG SeaCore 377 MAG
Region
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia
Certification Status of Boat Manufacturer
Not Certified
1 year 2 years 3 years
2 years 2 years 2 years
2 years 3 years 3 years
2 years 2 years 3 years
1 year 1 year 1 year
2 years 2 years 2 years
1 year 1 year 1 year
3 years 4 years 4 years
2 years 2 years 2 years
3 years 4 years 4 years
3 years 3 years 4 years
1 year 1 year 1 year
2 years 2 years 2 years
1 year 1 year 1 year
Installation Quality
Certified
Consumer Limited
Corrosion Warranty
Page 10 90-8M0050539 eng MAY 2011

Warranty for Commercial Applications

Engine Model Region
The Americas (excluding Brazil)
Brazil
350 MAG 377 MAG SeaCore 350 MAG SeaCore 377 MAG
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia

Warranty for Government Applications

Engine Model
350 MAG 377 MAG SeaCore 350 MAG SeaCore 377 MAG
The Americas (excluding Brazil)
Brazil
Europe, Middle East, Africa
Australia, New Zealand
Japan
South Pacific
Other Asia
Region
Section 1 - Warranty
Standard Factory Limited Warranty by
Certification Status of Boat Manufacturer
Not Certified
1 year 1 year 1 year
2 years 2 years 2 years
1 year or 500 hours 1 year or 500 hours 1 year or 500 hours
Standard Factory Limited Warranty by
Certification Status of Boat Manufacturer
Not Certified
1 year 1 year 3 years
2 years 2 years 2 years
1 year or 500 hours 1 year or 500 hours 1 year or 500 hours
Installation Quality
Certified
Installation Quality
Certified
Commercial Limited
Corrosion Warranty
Government Limited
Corrosion Warranty

Emission Control Warranty Information

Important Information

To identify the applicable emission control warranty coverage for a particular product, refer to the Emission Control Information label affixed to the engine.
Engines designated as exempt from either Federal EPA or California emission control regulations are not covered by a separate emission control component warranty. The product's Mercury MerCruiser manufacturer's warranty is not affected by the engine's designation under Federal EPA or California emission control regulations.
For a list of typical emission control related engine components, refer to Emission Control System Components in the warranty section of your owners manual.
90-8M0050539 eng MAY 2011 Page 11
Section 1 - Warranty
REFER TO THE OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS
FAMILY:
XXXXXXXXXXXX
EMISSION CONTROL INFORMATION
NOT FOR SALE IN CALIFORNIA
THIS MARINE ENGINE COMPLIES WITH U.S. EPA EXHAUST REGULATIONS FOR 2009
XXXXXXXX
SERIAL #:
DOM: MMM YYYY
DISP: X.XL
ECIEPA
0575
43518
CO FEL : XXX g/kWh
POWER XXX kW :
HC+NOx FEL : XX.X g/kWh
REFER TO THE OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS
FAMILY:
XXXXXXXXXXX
EMISSION CONTROL INFORMATION
THIS ENGINE CONFORMS TO 2009 CALIFORNIA EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES
XXXXXXXX
SERIAL #:
DOM: MMM YYYY
DISP: X.XL
ECICARB
0575
43519
CO FEL : XXX g/kWh
POWER XXX kW :
HC+NOx FEL : XX.X g/kWh
REFER TO THE OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS
EMISSION CONTROL INFORMATION
THIS ENGINE CONFORMS TO 2009 CALIFORNIA AND U.S. EPA EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES
XXXXXXXX
SERIAL #:
DOM: MMM YYYY
DISP: X.XL
ECIEPACA
0575
43520
HC+NOx FEL : XX.X g/kWh
POWER XXX kW :
CO FEL : XXX g/kWh
FAMILY:
XXXXXXXXXXXX
REFER TO THE OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS
EMISSION CONTROL INFORMATION
THIS ENGINE CONFORMS TO 2009 CALIFORNIA AND U.S. EPA EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES
XXXXXXXX
SERIAL #:
DOM: MMM YYYY
DISP: X.XL
ECIEPACA
0575
HC+NOx FEL : XX.X g/kWh
POWER XXX kW :
CO FEL : XXX g/kWh
FAMILY:
XXXXXXXXXXXX
43500
abcde
f
g

Emission Control Information Label

A tamper‑resistant emission control information (ECI) label is affixed to the engine in a visible location at the time of manufacture by Mercury MerCruiser. Please note that the low emissions certification will not affect the fit, function, or performance of the engine. Boatbuilders and dealers may not remove the label or the part it is affixed to before sale. If modifications are necessary, contact Mercury MerCruiser about the availability of replacement decals before proceeding. In addition to the required emissions statement, the label lists the engine serial number, family, applicable emission standard, date of manufacture (month, year), and engine displacement.
a - Applicable standard b - Engine serial number c - Engine family name d - Hydrocarbons plus oxides of nitrogen family emission
limit
e - Date of manufacture f - Engine displacement, engine power g - Carbon monoxide family emission limit
IMPORTANT: A CE mark in the lower right corner of the Emission Control Information label indicates that an EU Declaration of Conformance applies. Refer to the front page of this manual for further information. IMPORTANT: Engines designated as exempt from either Federal EPA or California emission control regulations are not covered by a separate emission control component warranty. The product's Mercury MerCruiser manufacturer's warranty is not affected by the engine's designation under Federal EPA or California emission control regulations.
ECI Label Standard of Compliance
Indicates a marine engine compliant with United States EPA exhaust emission regulations for 2009. This marine engine is not for sale in California.
Indicates a marine engine compliant with California CARB exhaust emission regulations for 2009
Indicates a marine engine compliant with California CARB and U.S. EPA regulations for 2009
Page 12 90-8M0050539 eng MAY 2011
ECI Label Standard of Compliance
REFER TO THE OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS
EMISSION CONTROL INFORMATION
NOT FOR SALE IN CALIFORNIA
THIS ENGINE IS EXEMPT UNDER 40 CFR 1068.255 FROM EMISSION STANDARDS AND RELATED REQUIREMENTS
XXXXXXXX
SERIAL #:
DOM: MMM YYYY
DISP: X.XL
ECIEXEMP
0575
43521
POWER XXX kW :
CO FEL : XXX g/kWh
FAMILY:
XXXXXXXXXXXX
HC+NOx FEL : XX.X g/kWh
EMISSION CONTROL INFORMATION
XXXXXXXX
SERIAL #:
DOM: MMM YYYY
DISP: X.XL
ECICARBX
0575
43522
THIS ENGINE CONFORMS TO 2010 CALIFORNIA EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES. THIS ENGINE IS EXEMPT UNDER 40 CFR 1068.255 FROM EMISSION STANDARDS AND RELATED REQUIREMENTS. REFER TO THE OWNERS MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
POWER XXX kW :
CO FEL : XXX g/kWh
HC+NOx FEL : XX.X g/kWh
FAMILY:
XXXXXXXXXXXX
EMISSION CONTROL INFORMATION
ECISERV
THIS ENGINE DOES NOT COMPLY WITH U.S. EPA NONROAD EMISSION REQUIREMENTS. SELLING OR INSTALLING THIS ENGINE FOR ANY PURPOSE OTHER THAN TO REPLACE A NONROAD ENGINE BUILT BEFORE JANUARY 1, 2010 MAY BE A VIOLATION OF FEDERAL LAW SUBJECT TO CIVIL PENALTY.
XXXXXXXX
SERIAL #:
FAMILY:
XXXXXXXXXXXX
HC+NOx FEL : XX.X g/kWh
DISP: X.XL
POWER XXX kW :
CO FEL : XXX g/kWh
0575
43499
DOM: MMM YYYY
Indicates a marine engine exempt under 40 CFR 1068.255 from United States EPA exhaust emission regulations for 2010. This marine engine is not for sale in California.
Indicates a marine engine compliant with 2010 California emission regulations and exempt under 40 CFR 1068.255 from United States EPA exhaust emission regulations
Section 1 - Warranty
Indicates a service marine engine that can replace a marine engine built prior to January 1, 2010.
Owner Responsibility
The operator must have routine engine maintenance performed to maintain emission levels within prescribed certification standards.
The operator may not modify the engine in any manner that alters the horsepower or allows emissions levels to exceed factory specifications.

California Emissions Limited Warranty—350/377 MAG ECT and SeaCore 350/377 MAG ECT

NOTE: Mercury Marine does not establish model years for the Mercury MerCruiser product line. In order to comply with CARB warranty regulations, and for that limited purpose only, model year shall have the same meaning as calendar year. As an example, 2003 model year products refers to products manufactured during calendar year 2003.
The California Air Resources Board has promulgated air emissions regulations for inboard and sterndrive engines. The regulations apply to all inboard and sterndrive engines that were manufactured for the 2003 model year and later. Mercury Marine, in compliance with those regulations, provides this limited warranty for the emission control systems (see the components of the emission control system listed following), and further warrants that the inboard or sterndrive engine was designed, built, and equipped to conform with all applicable regulations adopted by the California Air Resources Board pursuant to its authority in Chapters 1 and 2, Part 5, Division 26 of the Health and Safety Code. For information regarding the limited warranty for the non‑emissions related components of the inboard or sterndrive engine, please see the limited warranty statement for your engine.
What Is Covered
NOTE: Your dealer will register your engine for warranty coverage for you. The warranty registration process is not related in any way to the process of obtaining a license, title or registration from state boating authorities. You should ask your dealer to update your warranty registration information to reflect a change of address or a transfer of ownership. (This change may be made at any time.) Refer to the Warranty Registration information in your owners manual or to your dealer for more information.
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Section 1 - Warranty
Mercury Marine warrants the components of the emissions control systems (see the components of the emission control system listed following) of its new, 2003 model year and later California‑certified inboard and sterndrive engines, registered to a California resident, to be free from defects in material or workmanship that cause the failure of a warranted part to be identical in all material respects to that part as described in the application of Mercury Marine for certification from the California Air Resources Board, for the period of time, and under the conditions identified below. The cost to diagnose a warranty failure is covered if the warranty claim is approved. Damage to other engine components caused by the failure of a warranted part will also be repaired under warranty.
Duration of Coverage
NOTE: Mercury Marine does not establish model years for the Mercury MerCruiser product line. In order to comply with CARB warranty regulations, and for that limited purpose only, model year shall have the same meaning as calendar year. As an example, 2003 model year products refers to products manufactured during calendar year 2003
This limited warranty provides coverage for the components of the emissions control systems. Specific emission control related parts on new inboard or sterndrive engines are warranted for 3 years or 480 hours, whichever first occurs, from either the date the product is first sold, or first put into service, whichever occurs first. Emission related normal maintenance items such as spark plugs and filters, that are on the warranted parts list are warranted up to their first required replacement interval only. Refer to Emission Control System Components and Maintenance Schedule. The repair or replacement of parts, or the performance of service under this warranty, does not extend the life of this warranty beyond its original expiration date. Unexpired warranty coverage can be transferred to a subsequent purchaser. Refer to Transfer of Warranty.
How to Obtain Warranty Coverage
The customer must provide Mercury with a reasonable opportunity to repair and reasonable access to the product for warranty service. Warranty claims shall be made by delivering the product for inspection to a Mercury dealer authorized to service the product. If purchaser cannot deliver the product to such a dealer, please notify Mercury Marine and Mercury will then arrange for the inspection and any covered repair. Purchaser in that case shall pay for all related transportation charges and/or travel time. If the service provided is not covered by this warranty, purchaser shall pay for all related labor and material, and any other expenses associated with that service. Purchaser shall not, unless requested by Mercury, ship the product or parts of the product directly to Mercury.
What Mercury Will Do
Mercury Marine's sole and exclusive obligation under this warranty is limited to, at our expense and at our option, repairing or replacing defective parts with new or Mercury Marine certified re‑manufactured parts, or refunding the purchase price of the Mercury product. Mercury reserves the right to improve or modify products from time to time without assuming an obligation to modify products previously manufactured.
What Is Not Covered
This limited warranty does not cover routine maintenance items, tune ups, adjustments, normal wear and tear, damage caused by abuse, abnormal use, use of a propeller or gear ratio that does not allow the engine to run in its recommended wide‑open‑throttle RPM range (see Specifications), operation of the product in a manner inconsistent with the recommended operation procedures, neglect, accident, submersion, improper installation (proper installation specifications and techniques are set forth in the installation instructions for the product), improper service, jet pump impellers and liners, operation with fuels, oils or lubricants which are not suitable for use with the product (see Specifications), alteration or removal of parts.
Expenses related to haul‑out, launch, towing, storage, telephone, rental, inconvenience, slip fees, insurance coverage, loan payments, loss of time, loss of income, or any other type of incidental or consequential damages are not covered by this warranty. Also, expenses associated with the removal and/or replacement of boat partitions or material caused by boat design for access to the product are not covered by this warranty.
Non‑warranty maintenance, replacement, or repair of emission control devices and systems may be performed by any marine engine repair establishment or individual. The use of non‑Mercury parts for non‑warranty maintenance or repairs will not be grounds for disallowing other warranty work. The use of add‑on (as defined at section 1900 (b)(1) and (b)(10) of Title 13 of the California Code of Regulations) or modified parts not exempted by the California Air Resources Board may be grounds for disallowing a warranty claim, at the discretion of Mercury Marine. Failures of warranted parts caused by the use of a non‑exempted add‑on or modified part will not be covered.
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Section 1 - Warranty
Disclaimers and Limitations
DISCLAIMERS AND LIMITATIONS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED. TO THE EXTENT THAT THEY CANNOT BE DISCLAIMED, THE IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE LIFE OF THE EXPRESS WARRANTY. INCIDENTAL AND CONSEQUENTIAL DAMAGES ARE EXCLUDED FROM COVERAGE UNDER THIS WARRANTY. SOME STATES/COUNTRIES DO NOT ALLOW FOR THE DISCLAIMERS, LIMITATIONS AND EXCLUSIONS IDENTIFIED ABOVE. AS A RESULT, THEY MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER LEGAL RIGHTS WHICH VARY FROM STATE TO STATE AND COUNTRY TO COUNTRY.
If you have any questions regarding your warranty rights and responsibilities, refer to Owner Service Assistance for contact information.

California Emission Control Warranty Statement—350/377 MAG ECT and SeCore 350/377 MAG ECT

Your Warranty Rights and Obligations
NOTE: Mercury Marine does not establish model years for the Mercury MerCruiser product line. In order to comply with CARB warranty regulations, and for that limited purpose only, model year shall have the same meaning as calendar year. As an example, 2003 model year products refers to products manufactured during calendar year 2003.
The California Air Resources Board is pleased to explain the emission control system warranty on your 2003 model year and later inboard or sterndrive engine. In California, new inboard and sterndrive engines must be designed, built and equipped to meet the State's stringent anti‑smog standards. Mercury Marine must warrant the emission control system on your inboard or sterndrive engine for the periods of time listed below provided there has been no abuse, neglect or improper maintenance of your inboard or sterndrive engine.
Your emission control system may include parts such as the carburetor or fuel injection system, the ignition system, and catalytic converter. Also included may be hoses, belts, connectors and other emission‑related assemblies.
Where a warrantable condition exists, Mercury Marine will repair your inboard or sterndrive engine at no cost to you; including diagnosis, parts and labor.
Manufacturer's Warranty Coverage
Select emission control parts from 2009 and later (inboard or sterndrive) engines are warranted for 3 years or 480 hours, whichever first occurs. However, warranty coverage based on the hourly period is only permitted for engines that are equipped with hour meters as defined in s 2441(a)(13) or their equivalent. If any emission‑related part on your engine is defective under warranty, the part will be repaired or replaced by Mercury Marine.
Owner's Warranty Responsibilities
As the inboard or sterndrive engine owner, you are responsible for the performance of the required maintenance listed in your owner's manual. Mercury Marine recommends that you retain all receipts covering maintenance on your inboard or sterndrive engine, but Mercury Marine cannot deny warranty solely for the lack of receipts or your failure to ensure the performance of all scheduled maintenance.
As the inboard or sterndrive engine owner, you should however be aware that Mercury Marine may deny you warranty coverage if your inboard or sterndrive engine or a part has failed due to abuse, neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your inboard or sterndrive engine to a Mercury Marine dealer authorized to service the product as soon as a problem exists. The warranty repairs will be completed in a reasonable amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights and responsibilities, refer to Owner Service Assistance for contact information.

U.S. EPA Emissions Limited Warranty

Consistent with the obligations created by 40 CFR Part 1045, Subpart B, Mercury Marine provides an emission warranty of three years or 480 hours of engine use whichever occurs first to the retail purchaser, that the engine is designed, built, and equipped so as to conform at the time of sale with applicable regulations under section 213 of the Clean Air Act, and that the engine is free from defects in materials and workmanship which cause the engine to fail to conform with applicable regulations.

Emission Control System Components

The emission‑related warranty covers all components whose failure would increase an engine's emission of any regulated component including the following list of components:
1. Fuel metering system
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Section 1 - Warranty
a. Carburetor and internal parts (or fuel pressure regulator or fuel injection system) b. Air/fuel ratio feedback and control system c. Cold start enrichment system d. Intake valves
2. Air induction system a. Controlled hot air intake system b. Intake manifold c. Air filter d. Turbo charger systems e. Heat riser valve and assembly
3. Ignition system a. Spark plugs b. Magneto or electronic ignition system c. Spark control system d. Ignition coil or control module e. Ignition wires
4. Lubrication system a. Oil pump and internal parts b. Oil injectors c. Oil meter
5. Positive crankcase ventilation (PCV) system a. PCV valve b. Oil filler cap
6. Exhaust system a. Exhaust manifold b. Exhaust elbow c. Intermediate exhaust elbow d. Lower exhaust pipe e. Tailpipe
7. Catalysts or thermal reactor system a. Catalytic converter b. Thermal reactor c. Exhaust manifold d. Exhaust valves
8. Miscellaneous items used in above systems a. Hoses, clamps, fittings, tubing, sealing gaskets or devices, and mounting hardware b. Pulleys, belts, and idlers c. Vacuum, temperature, check and time sensitive valves and switches d. Electronic controls
NOTE: The EPA emission‑related warranty does not cover components whose failure would not increase an engine's emissions on any regulated pollutant.

Emission Certification Star Label

Your boat is labeled on the hull with one of the following star labels. The Symbol for Cleaner Marine Engines Means:
1. Cleaner Air and Water ‑ for a healthier lifestyle and environment.
2. Better Fuel Economy ‑ burns up to 30‑40 percent less gas and oil than conventional carbureted two‑stroke engines, saving
money and resources.
3. Longer Emission Warranty ‑ Protects consumer for worry free operation.
Beginning January 1, 2003, one Three‑Star or Four‑Star label will be included with each factory‑certified Mercury MerCruiser engine.
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XX 1234 XX
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b
All Mercury MerCruiser engines (500 hp and below) will have a Three‑Star Ultra Low Emission rating or Four‑Star Super Ultra Low Emission rating. The Star label identifies that these engines meet the California Air Resources Board's Sterndrive and Inboard marine engine 2007 and later exhaust emission standards. Engines meeting these standards have 65‑90% lower emissions than One‑Star – Low Emissions engines.
The Star label will be affixed on the left side of the hull as shown.
a - Recommended location b - Secondary location
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One Star - Low emission
Two Stars - Very Low emission
Three Stars - Ultra Low emission
mc79569-1
The one‑star label identifies personal watercraft, outboard, sterndrive and inboard engines that meet the Air Resources Board's Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two‑stroke engines. These engines are equivalent to the U.S. EPA's 2006 standards for marine engines.
The two‑star label identifies personal watercraft, outboard, sterndrive and inboard engines that meet the Air Resources Board's Personal Watercraft and Outboard marine engine 2004 exhaust emission standards. Engines meeting these standards have 20% lower emissions than One Star ‑ Low‑Emission engines.
The three‑star label identifies engines that meet the Air Resources Board's Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 2003 exhaust emission standards. Engines meeting these standards have 65% lower emissions than One Star ‑ Low Emission engines.
Four Stars - Super Ultra Low emission
The Four Star label identifies engines that meet the Air Resources Board's Sterndrive and Inboard marine engine 2009 exhaust emission standards. Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meeting these standards have 90% lower emissions than One Star ‑ Low Emission engines.

Hang Tag

The dealer must mark the appropriate box on one hang tag to match the Star label affixed to the boat. The dealer is responsible for displaying the hang tag in a visible location on the boat on display in California. Failure to properly display the hang tag could result in a citation and possible fine to the dealer from the California Air Resources Board.
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If in California, the dealer must place the hang tag in a visible location in the boat prior to displaying the boat.
Hang tag front side Hang tag back side
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Notes:
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Section 2 - Getting to Know Your Power Package
Table of Contents
Section 2 - Getting to Know Your Power Package
Additional Operation Instructions for Axius Systems ........... 22
Identification......................................................................... 22
Engine Serial Number Decal MPI..................................22
Alpha Sterndrive Decal Identification.............................22
Alpha Transom Serial Number......................................23
Bravo Sterndrive Serial Number and Identification........23
Bravo Transom Serial Number......................................24
Lanyard Stop Switch............................................................. 24
Instrumentation—350/377 MAG and SeaCore 350/377 MAG
.............................................................................................. 25
Digital Gauges .............................................................. 25
Analog Gauges ............................................................. 26
Instrumentation—350/377 MAG ECT and SeaCore 350/377
MAG ECT............................................................................. 26
VesselView....................................................................26
Digital Gauges...............................................................27
Analog Gauges..............................................................28
Remote Controls (Non‑DTS Models).................................... 28
Remote Controls............................................................28
Panel Mount Features ........................................... 29
Console Mount Features ....................................... 29
Remote Controls (DTS Models)........................................... 30
Remote Controls............................................................30
Panel Mount Features...................................................30
Console Mount Features ‑ Single Engine......................31
Slim Binnacle Console Mount Features ‑ Single Engine
.......................................................................................31
Console Mount Features‑ Dual Engine..........................32
Synchronizing Dual Engines..........................................32
Dual Helm Station Transfer...........................................33
Synchronizing Dual Helms Prior To Station Transfer
.............................................................................. 33
Zero Effort Features.......................................................34
Dual Console Control with CAN Trackpad Features and
Operation.............................................................................. 34
Dual‑Handle Console Control With CAN Trackpad:
Features and Operation.................................................34
Synchronizing Engines..................................................35
Helm Transfer................................................................36
Synchronizing Helms Prior to Transfer .................. 36
Zero Effort Features.......................................................37
Power Trim........................................................................... 37
Single Engine Trim/Trailer ............................................ 38
Dual Engine Trim/Trailer ............................................... 38
Electrical System Overload Protection—350/377 MAG ECT
and SeaCore 350/377 MAG ECT......................................... 38
Electrical System Overload Protection—350/377 MAG and
SeaCore 350/377 MAG........................................................ 42
Visual and Audio Warning Systems—350/377 MAG ECT and
SeaCore 350/377 MAG ECT................................................ 44
Service Engine Light and OBD‑M MIL Kit......................44
Testing the OBD‑M Malfunction Indicator Lamp (MIL)
.............................................................................. 44
Audio Warning System..................................................44
Caution .................................................................. 45
Severe ................................................................... 45
Testing the Audio Warning System ....................... 45
Guardian Strategy..........................................................45
Audio Warning System—350/377 MAG and SeaCore350/377
MAG..................................................................................... 46
Audio Warning System..................................................46
Caution .................................................................. 46
Severe ................................................................... 46
Testing the Audio Warning System ....................... 46
Engine Guardian Strategy.............................................46
2
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Section 2 - Getting to Know Your Power Package
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b
a
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Additional Operation Instructions for Axius Systems

If your boat has DTS engines equipped with an Axius system, refer also to the Axius Operation Manual included with the boat.

Identification

The serial numbers are the manufacture'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 Decal MPI

The serial number decal is located on the engine cover.
Serial numbers and maintenance color codes decal
The engine serial number is also stamped in the engine block.

Alpha Sterndrive Decal Identification

The Drive Serial No. is located on the port side of the alpha sterndrive. The Drive Ratio is located on the starboard side of the alpha sterndrive.
Alpha sterndrive
a - Drive gear ratio decal (starboard) b - Serial number decal (port)
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