Mercury 50 4-Stroke, 40 4-Stroke, 60 4-Stroke User Manual

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Welcome Aboard!

Proper care and maintenance is an important part in keeping your Mercury Product operating at peak efficiency for maximum performance and economy. The enclosed Owner's Registration Card is your key to trouble‑free family fun. Refer to your Operation and Maintenance Manual for full details of your warranty coverage.

Details of your nearest dealer can be found on www.marinepower.com where country maps and full contact information are displayed.

Is your engine properly registered for warranty purpose? Please check on www.marinepower.com. If necessary, please contact your local dealer.

Declaration of Conformity

Manufacturer:

Mercury Marine W6250 Pioneer Road P.O. Box 1939 Fond du Lac, WI 54935-1939 USA,

Authorized Representative:

Marine Power Europe, Inc. Parc Industriel de Petit-Rechain B-2800 Verviers - Belgium,

Recreational Craft Directive: 2003/44/EC amending 94/25/EC

Applicable Requirement Standards Applied

Owner's manual (A.2.5) EN ISO 10240:2004

Handling characteristics (A.4) EN ISO 8665:1995

Outboard engines starting (A.5.1.4) EN ISO 11547:1995

General steering system (A.5.4.1)

ABYC P‑17; EN ISO 10592:1995

Exhaust emission requirements (B.2) EN ISO 8178‑1:1996

Owner's manual (B.4) EN ISO 8665:1995

Noise emission levels (C.1) EN ISO 14509:2000

Module used for exhaust emission assessment: Module H; Certification No. RCD‑H‑2

Module used for noise emission assessment: Module H; Certification No. RCD‑H‑2

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Name of Notified Body for exhaust emission assessment and noise emission assessment:

Det Norske Veritas AS

Veritasveien 1

1322 Hovik

Norway

Notified Body Number: 0575

Engine type: Outboard

Fuel type: Gasoline

Combustion cycle: 4 stroke

Brands: Mercury, Mariner

Engine Family

Manufacturer Location

Horsepower

Starting Serial Number

Module H Noise and Exhaust Certificate

Verado 4 Cylinder

Belgium 135,150 0P401000 RCD‑H‑2

Verado 4 Cylinder

Fond du Lac, Wisconsin, USA

135, 150 1B227000 RCD‑H‑2

Verado 6 Cylinder

Belgium

200, 225, 250, 275

0P401000 RCD‑H‑2

Verado 6 Cylinder

Fond du Lac, Wisconsin, USA

200, 225, 250, 275

1B227000 RCD‑H‑2

80, 100, 115 EFI

Belgium 80, 100, 115 0P401000 RCD‑H‑2

75, 90, 115 EFI

Fond du Lac, Wisconsin, USA

75, 90, 115 1B366823 RCD‑H‑2

40 3 Cylinder Belgium 40 0P401000 RCD‑H‑2

40, 50, 60 4‑Cylinder

Belgium 40, 50, 60 0P401000 RCD‑H‑2

4/5/6 hp Beligium 4, 5, 6 0P401000 RCD‑H‑2

8/9.9 hp Belgium 8, 9.9 0P401000 RCD‑H‑2

15 hp Belgium 15 0P401000 RCD‑H‑2

Safety of Machinery Directive 98/37/EC

Principles of safety integration (1.1.2)

ISO 12100‑1; ISO 12100‑2; EN 1050

Noise (1.5.8) ICOMIA 39/94

Vibration (1.5.9) ICOMIA 38/94

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iii

Electromagnetic Compatibility Directive 89/336/EC

Generic emission standard EN 61000‑6‑3

Generic immunity standard EN 61000‑6‑1

Vehicles, boats and internal combustion engine driven devices ‑ radio disturbance characteristics

SAE J551 (CISPR 12)

CISPR 12; EN 55012:2002/A1:2005

Electrostatic discharge testing

EN 61000‑6‑2; EN 61000‑4‑2; EN 61000‑4‑3

This declaration is issued under the sole responsibility of Mercury Marine and Marine Power Europe.

Patrick C. Mackey

President, Mercury Marine, Fond du Lac, WI USA on May 1, 2006

European Regulations Contact:

Regulations and Product Safety Department, Mercury Marine,

Fond du Lac, WI USA

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TABLE OF CONTENTS

Warranty Information

Transfer Of Warranty...................................................................1

Warranty Registration United States And Canada......................1

Warranty Registration Outside The United States And Canada

.....................................................................................................2

FourStroke Outboard Limited Warranty United States, Canada,

Europe and Confederation of Independent States......................3

FourStroke Outboard Limited Warranty (Middle‑East, and Africa)

.....................................................................................................6

3 Year Limited Warranty Against Corrosion................................9

Warranty Coverage And Exclusions..........................................13

GENERAL INFORMATION

Boater's Responsibilities............................................................16

Before Operating Your Outboard...............................................16

Boat Horsepower Capacity........................................................17

High‑Speed and High‑Performance Boat Operation................. 17

Outboard Remote Control Models ............................................17

Remote Steering Notice.............................................................18

Lanyard Stop Switch..................................................................19

Protecting People In The Water.................................................21

Passenger Safety Message ‑ Pontoon Boats And Deck Boats. 22

Wave And Wake Jumping......................................................... 23

Impact With Underwater Hazards..............................................24

Safety Instructions For Hand Tilled Outboards..........................25

Exhaust Emissions.................................................................... 26

Selecting Accessories For Your Outboard.................................28

Safe Boating Suggestions......................................................... 28

Recording Serial Number.......................................................... 30

40/50/60 4‑Stroke Specifications ‑ International........................30

Component Identification...........................................................32

TRANSPORTING

Trailering Boat/Outboard .......................................................... 33

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TABLE OF CONTENTS

Transporting Portable Fuel Tanks............................................. 33

FUEL & OIL

Fuel Recommendations.............................................................35

Filling Fuel Tank........................................................................37

Engine Oil Recommendations...................................................37

Checking and Adding Engine Oil...............................................38

FEATURES & CONTROLS

Remote Control Features..........................................................40

Warning System........................................................................41

Power Trim and Tilt....................................................................43

Throttle Grip Friction Adjustment ‑ Tiller Handle Models...........47

Steering Friction Adjustment......................................................47

Trim Tab Adjustment.................................................................49

OPERATION

Pre‑Starting Check List..............................................................51

Operating In Freezing Temperatures.........................................51

Operating In Salt Water Or Polluted Water................................51

Pre‑Starting Instructions............................................................52

Engine Break‑in Procedure........................................................52

Starting the Engine ‑ Remote Control Models...........................53

Starting the Engine ‑ Tiller Handle Models................................55

Gear Shifting .............................................................................58

Stopping The Engine ................................................................59

Emergency Starting ..................................................................60

MAINTENANCE

Outboard Care...........................................................................63

EPA Emissions..........................................................................63

Inspection and Maintenance Schedule......................................64

Flushing the Cooling System.....................................................66

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TABLE OF CONTENTS

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Top Cowl Removal and Installation...........................................67

Exterior Care..............................................................................67

Battery Inspection .....................................................................67

Fuel System...............................................................................68

Steering Link Rod Fasteners.....................................................69

Corrosion Control Anode...........................................................71

Propeller Replacement ‑ 87.3 mm (3 ‑ 7/16 in.) Diameter Gearcase

...................................................................................................72

Propeller Replacement ‑ 108 mm (4 ‑ 1/4 in.) Diameter Gearcase

...................................................................................................75

Spark Plug Inspection And Replacement..................................79

Fuse Replacement.....................................................................80

Timing Belt Inspection...............................................................81

Lubrication Points......................................................................82

Checking Power Trim Fluid........................................................85

Changing Engine Oil .................................................................85

Gearcase Lubrication ‑ For 87.3 mm(3‑7/16 in.) Diameter

Gearcase...................................................................................87

Gearcase Lubrication ‑ For 108 mm(4 ‑ 1/4 in.) Diameter Gearcase

...................................................................................................89

Submerged Outboard................................................................91

STORAGE

Storage Preparation...................................................................92

Protecting External Outboard Components...............................93

Protecting Internal Engine Components....................................93

Gearcase...................................................................................93

Positioning Outboard For Storage.............................................93

Battery Storage..........................................................................93

TROUBLESHOOTING

Starter Motor Will Not Crank The Engine (Electric Start Models)

...................................................................................................95

Engine Will Not Start..................................................................95

Engine Runs Erratically.............................................................96

Performance Loss......................................................................96

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TABLE OF CONTENTS

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Battery Will Not Hold Charge.....................................................96

OWNER SERVICE ASSISTANCE

Local Repair Service..................................................................98

Service Away From Home.........................................................98

Parts And Accessories Inquiries................................................98

Service Assistance....................................................................98

Mercury Marine Service Offices.................................................99

OUTBOARD INSTALLATION

Installation Information.............................................................101

Fuel Hose Connection ‑ Remote Control Models....................111

Electrical Connections and Control Cable Installation.............112

Propeller Installation................................................................120

Trim Tab Adjustment...............................................................125

Trim‑In Stop Adjustment ‑ Power Trim Models........................126

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WARRANTY INFORMATION

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 and Canada, mail to:

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

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 Marine Power Service Center closest to you.

Warranty Registration United States And Canada

1. You may change your address at any time, including at time of warranty claim, by calling Mercury Marine or sending a letter or fax with your name, old address, new address, and engine serial number to Mercury Marine’s warranty registration department. Your dealer can also process this change of information. Mercury Marine Attn: Warranty Registration Department W6250 Pioneer Road P.O. Box 1939 Fond du Lac, WI 54936-1939 920-929-5054 Fax 920-929-5893

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WARRANTY INFORMATION

NOTE: Registration lists must be maintained by Mercury Marine and any dealer on marine products sold in the United States, should a safety recall notification under the Federal Safety Act be required.

2. To be eligible for warranty coverage, the product must be registered with Mercury Marine. At the time of sale, the dealer should complete the warranty registration and immediately submit it to Mercury Marine via MercNET, E‑mail, or mail. Upon receipt of this warranty registration, Mercury Marine will record the registration.

3. Upon processing the warranty registration, Mercury Marine will send registration verification by mail to the purchaser of the product. If this registration verification is not received within 30 days, please contact your selling dealer immediately. Warranty coverage is not effective until your product is registered with Mercury Marine.

Warranty Registration Outside The United States And Canada

1. It is important that your selling dealer fills out the Warranty Registration Card completely and mails it to the distributor or Marine Power Service Center responsible for administering the warranty registration/claim program for your area.

2. 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/dealer's code number, name and address. The distributor/dealer also certifies that you are the original purchaser and user of the product.

3. 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/dealer. This card represents your factory registration identification, and should be retained by you for future use when required. Should you ever require warranty service on this product, your dealer may ask you for the Warranty Registration Card to verify date of purchase and to use the information on the card to prepare the warranty claim forms.

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WARRANTY INFORMATION

4. In some countries, the Marine Power Service Center will issue you a permanent (plastic) Warranty Registration Card within 30 days after receiving the Factory Copy of the Warranty Registration Card from your distributor/dealer. If you receive a plastic Warranty Registration Card, you may discard the Purchaser's Copy that you received from the distributor/dealer when you purchased the product. Ask your distributor/dealer if this plastic card program applies to you.

IMPORTANT: Registration lists must be maintained by the factory and dealer in some countries by law. It is our desire to have ALL products registered at the factory should it ever be necessary to contact you. Make sure your dealer/distributor fills out the warranty registration card immediately and sends the factory copy to the Marine Power International Service Center for your area.

5. For further information concerning the Warranty Registration Card and its relationship to Warranty Claim processing, refer to the International Warranty.

FourStroke Outboard Limited Warranty United States, Canada, Europe and Confederation of Independent States

Outside the United States, Canada, Europe and Confederation of Independent States ‑ check with local distributor.

WHAT IS COVERED: Mercury Marine warrants its new products to be free of defects in material and workmanship during the period described below.

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WARRANTY INFORMATION

DURATION OF COVERAGE: This Limited Warranty provides coverage for two (2) years from 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. Commercial users of these products receive warranty coverage of one (1) year from the date of first retail sale, or one (1) year from the date in which the product was first put into service, whichever occurs first. 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 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. Unexpired warranty coverage can be transferred from one recreational use customer to a subsequent recreational use customer upon proper re–registration of the product. Unexpired warrant coverage cannot be transferred either to or from a commercial use customer. Warranty coverage may be terminated for used or repossessed product; or product purchased at auction, from a slvage yard, or from an insurance company.

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 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. Routine maintenance outlined in the Operation and Maintenance Manual must be timely performed in order to maintain warranty coverage. Mercury Marine reserves the right to make future warranty coverage contingent on 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 defective 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.

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WARRANTY INFORMATION

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 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 the Operation and Maintenance Manual), operation of the product in a manner inconsistent with the recommended operation/duty cycle section of the Operation and Maintenance 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 not manufactured or sold by us, jet pump impellers and liners, operation with fuels, oils or lubricants which are not suitable for use with the product (see the Operation and Maintenance Manual), alteration or removal of parts, or 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, or running the boat with the engine trimmed out too far.. Use of the product for racing or other competitive activity, or operating with a racing type lower unit, at any point, even by a prior owner of the product, voids the warranty.

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WARRANTY INFORMATION

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.

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, and if made, shall not be enforceable against Mercury Marine.

For additional information regarding events and circumstances covered by this warranty, and those that are not, see the Warranty Coverage section of the Operation and Maintenance Manual, incorporated by reference into this warranty.

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.

FourStroke Outboard Limited Warranty (Middle‑East, and Africa)

WHAT IS COVERED: Mercury Marine warrants its new Outboard and Jet Products to be free of defects in material and workmanship during the period described below.

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WARRANTY INFORMATION

DURATION OF COVERAGE: This Limited Warranty provides coverage for one (1) year from 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. Commercial users of these products receive warranty coverage of one (1) years from the date of first retail sale, or one (1) year from the date on which the product was first put into service, whichever occurs first. 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 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. Unexpired warranty coverage can be transferred from one recreational use customer to a subsequent recreational use customer upon proper re‑registration of the product. Unexpired warranty coverage cannot be transferred either to or from a commercial use customer.

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 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. Routine maintenance outlined in the Operation and Maintenance Manual must be timely performed in order to maintain warranty coverage. Mercury Marine reserves the right to make warranty coverage contingent on 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 defective 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.

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WARRANTY INFORMATION

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 laborand 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 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 the Operation and Maintenance Manual), operation of the product in a manner inconsistent with the recommended operation/duty cycle section of the Operation and Maintenance 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 not manufactured or sold by us, jet pump impellers and liners, operation with fuels, oils or lubricants which are not suitable for use with the product (see the Operation and Maintenance Manual), alteration or removal of parts, or 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 foreign body, running the engine out of water, mounting the engine too high on the transom, or running the boat with the engine trimmed out too far.

Use of the product for racing or other competitive activity, or operating with a racing type lower unit, at any point, even by a prior owner of the product, voids the warranty.

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WARRANTY INFORMATION

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 coveredby 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.

DISCLAIMERS AND LIMITATIONS:

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, Mercury MerCruiser Inboard or Sterndrive Engine (Product) will not be rendered inoperative as a direct result of corrosion for the period of time described below.

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WARRANTY INFORMATION

DURATION OF COVERAGE: 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 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 subsequent (non‑commercial use) purchaser upon proper re‑registration of the product.

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 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 and Maintenance Manual must be in use on the boat, and routine maintenance outlined in the Operation and Maintenance 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.

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WARRANTY INFORMATION

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 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 the warranty period, even if the product is only occasionally used for such purposes.

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WARRANTY INFORMATION

Corrosion damage caused by stray electrical currents (on‑shore power connections, nearby boats, submerged metal) is not covered by this corrosion warranty and should be protected against by the use of a corrosion protection system, such as the Mercury Precision Parts or Quicksilver MerCathode system and/ or Galvanic Isolator. Corrosion damage caused by improper application of copper base anti‑fouling paints is also not covered by this limited warranty. If anti‑fouling protection is required, Tri‑Butyl‑Tin‑Adipate (TBTA) base anti‑fouling paints are recommended on Outboard and MerCruiser boating applications. In areas where TBTA base paints are prohibited by law, copper base paints can be used on the hull and transom. Do not apply paint to the outboard or MerCruiser product. In addition, care must be taken to avoid an electrical interconnection between the warranted product and the paint. For MerCruiser product, an unpainted gap of at least 38 mm (1.5 in.) should be left around the transom assembly. Refer to the Operation and Maintenance Manual for additional details.

DISCLAIMERS AND LIMITATIONS:

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WARRANTY INFORMATION

Warranty Coverage And Exclusions

The purpose of this section is to help eliminate some of the more common misunderstandings regarding warranty coverage. The following information explains some of the types of services that are not covered by warranty. The provisions set forth following have been incorporated by reference into the Three Year Limited Warranty Against Corrosion Failure, the International Limited Outboard Warranty, and the United States and Canada Limited Outboard Warranty.

Keep in mind that warranty covers repairs that are needed within the warranty period because of defects in material and workmanship. Installation errors, accidents, normal wear, and a variety of other causes that affect the product are not covered.

Warranty is limited to defects in material or workmanship, but only when the consumer sale is made in the country to which distribution is authorized by us.

Should you have any questions concerning warranty coverage, contact your authorized dealer. They will be pleased to answer any questions that you may have.

GENERAL EXCLUSIONS FROM WARRANTY

1. Minor adjustments and tune‑ups, including checking, cleaning or adjusting spark plugs, ignition components, carburetor settings, filters, belts, controls, and checking lubrication made in connection with normal services.

2. Factory installed jet drive units ‑ Specific parts excluded from the warranty are: The jet drive impeller and jet drive liner damaged by impact or wear, and water damaged drive shaft bearings as a result of improper maintenance.

3. Damage caused by neglect, lack of maintenance, accident, abnormal operation or improper installation or service.

4. Haul out, launch, towing charges, removal and/or replacement of boat partitions or material because of boat design for necessary access to the product, all related transportation charges and/or travel time, etc. Reasonable access must be provided to the product for warranty service. Customer must deliver product to an authorized dealer.

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WARRANTY INFORMATION

5. Additional service work requested by customer other than that necessary to satisfy the warranty obligation.

6. Labor performed by other than an authorized dealer may be covered only under following circumstances: When performed on emergency basis (providing there are no authorized dealers in the area who can perform the work required or have no facilities to haul out, etc., and prior factory approval has been given to have the work performed at this facility).

7. All incidental and/or consequential damages (storage charges, telephone or rental charges of any type, inconvenience or loss of time or income) are the owner's responsibility.

8. Use of other than Mercury Precision or Quicksilver parts when making warranty repairs.

9. Oils, lubricants or fluids changed as a matter of normal maintenance is customer's responsibility unless loss or contamination of same is caused by product failure that would be eligible for warranty consideration.

10.Participating in or preparing for racing or other competitive activity or operating with a racing type lower unit.

11.Engine noise does not necessarily indicate a serious engine problem. If diagnosis indicates a serious internal engine condition which could result in a failure, condition responsible for noise should be corrected under the warranty.

12.Lower unit and/or propeller damage caused by striking a submerged object is considered a marine hazard.

13.Water entering engine through the fuel intake, air intake or exhaust system or submersion.

14.Failure of any parts caused by lack of cooling water, which results from starting motor out of water, foreign material blocking inlet holes, motor being mounted too high or trimmed too far out.

15.Use of fuels and lubricants which are not suitable for use with or on the product. Refer to the Maintenance section.

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WARRANTY INFORMATION

16.Our limited warranty does not apply to any damage to our products caused by the installation or use of parts and accessories which are not manufactured or sold by us. Failures which are not related to the use of those parts or accessories are covered under warranty if they otherwise meet the terms of the limited warranty for that product.

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GENERAL INFORMATION

Boater's Responsibilities

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

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

Before Operating Your Outboard

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

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

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

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.

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GENERAL INFORMATION

Boat Horsepower Capacity

WARNING

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

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

U.S. COAST GUARD CAP ACITY

MAXIMUM HORSEPOWER XXX

MAXIMUM PERSON CAPACITY (POUNDS) XXX

MAXIMUM WEIGHT CAPACITY XXX

26777

High‑Speed and High‑Performance Boat Operation

If your outboard is to be used on a high speed or high performance boat with which you are unfamiliar, we recommend that you never operate it at its high speed capability without first requesting an initial orientation and familiarization demonstration ride with your dealer or an operator experienced with your boat/outboard combination. For additional information, obtain a copy of our Hi‑Performance Boat Operation booklet from your dealer, distributor, or Mercury Marine.

Outboard Remote Control Models

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

Page 26

GENERAL INFORMATION

WARNING

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

26779

Remote Steering Notice

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

WARNING

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

26780

a - Self‑locking nuts

Page 27

GENERAL INFORMATION

Lanyard Stop Switch

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

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

21629

a - Lanyard cord b - Lanyard stop switch

Read the following Safety Information before proceeding.

Page 28

GENERAL INFORMATION

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

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

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

WARNING

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

WARNING

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

Page 29

GENERAL INFORMATION

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

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

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

• Loss of control when docking.

Protecting People In The Water

WHILE YOU ARE CRUISING

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

21604

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

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

WHILE BOAT IS STATIONARY

WARNING

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

Page 30

GENERAL INFORMATION

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

Passenger Safety Message ‑ Pontoon Boats And Deck Boats

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

BOATS HAVING AN OPEN FRONT DECK

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

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

26782

WARNING

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

Page 31

GENERAL INFORMATION

BOATS WITH FRONT MOUNTED, RAISED PEDESTAL FISHING SEATS

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

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

26783

Wave And Wake Jumping

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

26784

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

Page 32

GENERAL INFORMATION

WARNING

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

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

Impact With Underwater Hazards

Reduce speed and proceed with caution whenever you drive a boat in shallow water areas, or in areas where you suspect underwater obstacles may exist which could be struck by the outboard or the boat bottom. The most important thing you can do to help reduce injury or impact damage from striking a floating or underwater object is to control the boat speed. Under these conditions, boat speed should be kept to a minimum planing speed of 24 to 40 km/h (15 to 25 MPH).

26785

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

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

Page 33

GENERAL INFORMATION

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

• A rapid reduction in speed. This will cause occupants to be thrown forward, or even out of the boat.

• Impact damage to the outboard and/or boat.

Keep in mind, the most important thing you can do to help reduce injury or impact damage during an impact is control the boat speed. Boat speed should be kept to a minimum planing speed when driving in waters known to have underwater obstacles.

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

The boat should also be checked for any hull fractures, transom fractures, or water leaks.

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

WARNING

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

Safety Instructions For Hand Tilled Outboards

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

Page 34

GENERAL INFORMATION

MODELS WITH CLAMP SCREWS:

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

WARNING

Failure to correctly fasten the outboard could result in the outboard propelling off the boat transom resulting in property damage, serious injury, or death. Before operation, the outboard must be correctly installed with the required mounting hardware. Do not accelerate above idle speed in water that may contain underwater obstacles if the outboard is not attached to the transom correctly.

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

Exhaust Emissions

BE ALERT TO CARBON MONOXIDE POISONING

Carbon monoxide is present in the exhaust fumes of all internal combustion engines. This includes the outboards, sterndrives and inboard engines that propel boats, as well as the generators that power various boat accessories. Carbon monoxide is a deadly gas that is odorless, colorless and tasteless.

Early symptoms of carbon monoxide poisoning which should not be confused with seasickness or intoxication, include headache, dizziness, drowsiness, and nausea.

WARNING

Carbon monoxide poisoning can lead to unconsciousness, brain damage, or death. Keep the boat well ventilated while at rest or underway and avoid prolonged exposure to carbon monoxide.

Page 35

GENERAL INFORMATION

GOOD VENTILATION

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

21622

Example of desired air flow through the boat

POOR VENTILATION

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

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

WHILE BOAT IS STATIONARY

21626

a - Running the engine when the boat is moored in a confined

space

b - Mooring close to another boat that has its engine running

Page 36

GENERAL INFORMATION

WHILE BOAT IS MOVING

21628

a - Running the boat with the trim angle of the bow too high b - Running the boat with no forward hatches open

Selecting Accessories For Your Outboard

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

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

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

Safe Boating Suggestions

In order to safely enjoy the waterways, familiarize yourself with local and other governmental boating regulations and restrictions, and consider the following suggestions.

Use flotation devices. Have an approved personal flotation device of suitable size for each person aboard (it is the law) and have it readily accessible.

Do not overload your boat. Most boats are rated and certified for maximum load (weight) capacities (refer to your boat capacity plate). If in doubt, contact your dealer or the boats manufacturer.

Perform safety checks and required maintenance. Follow a regular schedule and ensure that all repairs are properly made.

Page 37

GENERAL INFORMATION

Know and obey all nautical rules and laws of the waterways. Boat operators should complete a boating safety course. Courses are offered in the U.S.A. by 1) The U.S. Coast Guard Auxiliary, 2) The Power Squadron, 3) The Red Cross and 4) your state boating law enforcement agency. Inquiries may be made to the Boating Hotline, 1‑800‑368‑5647 or the Boat U.S. Foundation information number 1‑800‑336‑BOAT.

Make sure everyone in the boat is properly seated. Do not allow anyone to sit or ride on any part of the boat that was not intended for such use. This includes the back of seats, gunwales, transom, bow, decks, raised fishing seats, any rotating fishing seat; or anywhere that an unexpected acceleration, sudden stopping, unexpected loss of boat control, or sudden boat movement could cause a person to be thrown overboard or into the boat.

Never be under the influence of alcohol or drugs while boating (it is the law). Alcohol or drug use impairs your judgment and greatly reduces your ability to react quickly.

Prepare other boat operators. Instruct at least one other person on board in the basics of starting and operating the outboard, and boat handling, in case the driver becomes disabled or falls overboard.

Passenger boarding. Stop the engine whenever passengers are boarding, unloading, or are near the back (stern) of the boat. Just shifting the outboard into neutral is not sufficient.

Be alert. The operator of the boat is responsible by law to maintain a proper lookout by sight and hearing. The operator must have an unobstructed view particularly to the front. No passengers, load, or fishing seats should block the operators view when operating the boat above idle speed.

Never drive your boat directly behind a water skier in case the skier falls. As an example, your boat traveling at 40 km/h (25 MPH) will overtake a fallen skier 61 m (200 ft.) in front of you in 5 seconds.

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

Page 38

GENERAL INFORMATION

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

Recording Serial Number

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

OTXXXXXX

XXXX

24125

a - Serial number b - Model designation

c - Year manufactured d - Certified Europe Insignia

(as applicable)

40/50/60 4‑Stroke Specifications ‑ International

Models 40 50 60

Horsepower 40 50 60

Kilowatts 29.8 37.7 44.7

Full Throttle RPM Range 5500‑6000 RPM

Number of Cylinders 4

Idle Speed in Forward Gear

Controlled by ECM

Piston Displacement 995 cc (60.8 cu. in.)

Cylinder Bore 65 mm (2.559 in.)

Page 39

GENERAL INFORMATION

Models 40 50 60

Stroke 75 mm (2.953 in.)

Valve Clearance (Cold)

Intake Valve 0.15‑0.25mm (0.006‑0.010 in.)

Exhaust Valve 0.25‑0.35mm (0.010‑0.014 in.)

Recommended Spark Plug Champion RA8HC

Spark Plug Gap 1.0mm (0.040 in.)

Gear Ratio

83mm (3‑1/4 in.) Diameter Gearcase

1.83:1

108mm (4‑1/4 in.) Diameter Gearcase

2.31:1 or 2.33:1

Recommended Gasoline Refer to Fuel & Oil

Recommended Oil Refer to Fuel & Oil

Gearcase Lubricant Capacity

83mm (3‑1/4 in.) Diameter Gearcase

340 ml (11.5 fl. oz.)

108mm (4‑1/4 in.) Diameter Gearcase

710 ml (24.0 fl. oz.)

Engine Oil Capacity 3.0 Liter (3 Quarts)

Battery Rating

Operation Above 0 °C (32 °F)

465 Marine Cranking Amps (MCA) or 350 Cold

Cranking AMPS (CCA)

Operation Below 0 °C (32 °F)

1000 Marine Cranking Amps (MCA) or 750 Cold

Cranking AMPS (CCA)

Ampere Hours (Ah) 70 ‑100

Sound at Drivers Ear (ICOMIA 39‑94)

4‑Stroke 77.4

4‑Stroke with tiller 83.2

Page 40

GENERAL INFORMATION

Component Identification

28524

a - Auxiliary tilt switch b - Tilt support knob c - Transom brackets d - Oil drain plug e - Primary cooling water

intake

f - Gearcase g - Trim tab h - Anti‑ventilation plate i - Driveshaft housing

j - Water pump indicator

hole

k - Bottom cowl l - Top cowl m -Shift handle n - Engine stop switch o - Throttle friction

adjustment knob

p - Lanyard stop switch q - Steering friction

adjustment lever (tiller

handle models)

Page 41

TRANSPORTING

Trailering Boat/Outboard

Trailer your boat with the outboard tilted down in a vertical operating position.

If additional ground clearance is required, the outboard should be tilted up using an accessory outboard support device. Refer to your local dealer for recommendations. Additional clearance may be required for railroad crossings, driveways and trailer bouncing.

28517

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

Transporting Portable Fuel Tanks

WARNING

Avoid serious injury or death from a gasoline fire or explosion. Follow the transporting instructions supplied with the portable fuel tank. Transport the fuel tank in a well ventilated area away from open flame or sparks.

Page 42

TRANSPORTING

MANUAL VENTING TYPE FUEL TANK

1. Close fuel tank air vent when transporting tank. This will prevent escape of fuel or vapors from tank.

26793

AUTO-VENTING TYPE FUEL TANK

1. Disconnect the remote fuel line from tank. This will close the air vent and prevent escape of fuel or vapors from tank.

2. Install tether cap over the fuel line connector stem. This will protect the connector stem from being accidently pushed‑in, thus, allowing fuel or vapor to escape.

26794

a - Connector stem b - Tether cap

Page 43

FUEL & OIL

Fuel Recommendations

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

FUEL RATINGS

Mercury Marine engines will operate satisfactorily when using a major brand of unleaded gasoline meeting the following specifications:

USA and Canada ‑ having a posted pump Octane Rating of 87 (R +M)/2 minimum. Premium gasoline [92 (R+M)/2 Octane] is also acceptable. Do NOT use leaded gasoline.

Outside USA and Canada ‑ having a posted pump Octane Rating of 90 RON minimum. Premium gasoline (98 RON) is also acceptable. If unleaded gasoline is not available, use a major brand of leaded gasoline.

USING REFORMULATED (OXYGENATED) GASOLINES (USA ONLY)

This type of gasoline is required in certain areas of the USA. The 2 types of oxygenates used in these fuels are Alcohol (Ethanol) or Ether (MTBE or ETBE). If Ethanol is the oxygenate that is used in the gasoline in your area, refer to Gasolines Containing Alcohol.

These Reformulated Gasolines are acceptable for use in your Mercury Marine engine.

GASOLINES CONTAINING ALCOHOL

If the gasoline in your area contains either methanol (methyl alcohol) or ethanol (ethyl alcohol), you should be aware of certain adverse effects that can occur. These adverse effects are more severe with methanol. Increasing the percentage of alcohol in the fuel can also worsen these adverse effects.

Some of these adverse effects are caused because the alcohol in the gasoline can absorb moisture from the air, resulting in a separation of the water/alcohol from the gasoline in the fuel tank.

Page 44

FUEL & OIL

The fuel system components on your Mercury Marine engine will withstand up to 10% alcohol content in the gasoline. We do not know what percentage your boat's fuel system will withstand. Contact your boat manufacturer for specific recommendations on the boat's fuel system components (fuel tanks, fuel lines, and fittings). Be aware that gasolines containing alcohol may cause increased:

• Corrosion of metal parts

• Deterioration of rubber or plastic parts

• Fuel permeation through rubber fuel lines

• Starting and operating difficulties

WARNING

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

Because of possible adverse effects of alcohol in gasoline, it is recommended that only alcohol‑free gasoline be used where possible. If only fuel containing alcohol is available, or if the presence of alcohol is unknown, increased inspection frequency for leaks and abnormalities is required.

IMPORTANT: When operating a Mercury Marine engine on gasoline containing alcohol, storage of gasoline in the fuel tank for long periods should be avoided. Long periods of storage, common to boats, create unique problems. In cars, alcohol‑blend fuels normally are consumed before they can absorb enough moisture to cause trouble, but boats often sit idle long enough for phase separation to take place. In addition, internal corrosion may take place during storage if alcohol has washed protective oil films from internal components.

Page 45

FUEL & OIL

Filling Fuel Tank

WARNING

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

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

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

PORTABLE FUEL TANK PLACEMENT IN THE BOAT

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

Engine Oil Recommendations

We recommend the use of Mercury or Quicksilver NMMA FC‑W certified synthetic blend 25W‑40 4‑Stroke Outboard Oil for general, all‑temperature use. If SAE 10W‑30 oil is preferred, use Mercury or Quicksilver NMMA FC‑W certified 10W‑30 4‑Stroke Outboard Oil. If the recommended Mercury or Quicksilver NMMA FC‑W certified outboard oils are not available, a major brand of NMMA FC‑W certified 4‑stroke outboard oil of similar viscosity may be used.

When operating in temperatures above 4 °C (40° F), we encourage the use of NMMA FC‑W certified synthetic blend 25W‑40 4‑Stroke Outboard Oil.

Page 46

FUEL & OIL

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

+20

+40

+60

+80

F° C°

+100

7

+16

+27

18

+38

11583

Recommended SAE Viscosity for Engine Oil

a - NMMA FC‑ W certified 10W‑30 outboard oil may be used

at temperatures below 4 °C (40 °F)

b - NMMA FC‑W certified synthetic blend 25W‑40 outboard

oil may be used in all temperatures.

Checking and Adding Engine Oil

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

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

2. Flip the handle up and pull out the dipstick. Wipe it with a clean rag or towel and push it back in all the way.

Page 47

FUEL & OIL

3. Pull the dipstick back out again and observe the oil level. If the oil level is low, remove the oil filler cap and fill to (but not over) the upper oil level with the recommended oil.

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

4. Push the dipstick back in all the way, then flip the handle down to lock the dipstick in place. Reinstall the oil filler cap and hand tighten securely.

28412

a - Full mark b - Add mark

c - Dipstick d - Oil filler cap

Page 48

FEATURES & CONTROLS

Remote Control Features

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

26800

a - Control handle ‑ forward, neutral, reverse. b - Neutral release lever c - Trim/tilt switch (if equipped). ‑ Refer to Features &

Controls ‑ Power Trim and Tilt.

d - Lanyard stop switch ‑ Refer to General Information ‑

Lanyard Stop Switch.

e - Lanyard ‑ Refer to General Information ‑ Lanyard Stop

Switch.

f - Throttle friction adjustment ‑ Console controls require

cover removal for adjustment.

g - Ignition key switch ‑ "OFF," "ON," START." h - Fast idle lever ‑ Refer to Operation ‑ Starting the

Engine.

i - Throttle only button ‑ Refer to Operation ‑ Starting the

Engine.

Page 49

FEATURES & CONTROLS

Warning System

WARNING HORN SIGNALS

The outboard warning system incorporates a warning horn inside the boat. Remote control models will have the warning horn located inside the remote control or connected to the ignition key switch. Tiller handle models will have the warning horn located in the ignition key panel.

26801

a - Horn inside remote control b - Horn connected to ignition key switch c - Horn in ignition key panel

There are two types of warning horns to alert the operator of an active problem within the engine's operating system.

1. Continuous six second beep: Indicates a critical engine condition. Depending on the condition, the Engine Guardian System may engage and protect the engine by limiting it’s power. You should return to port immediately and contact your servicing dealer.

2. Intermittent short beeps for six seconds: Indicates a non‑critical engine condition. This condition does not require immediate attention. You may continue using your boat, however, depending on the nature of the problem, the engine’s power may be limited by the Engine Guardian System (see Engine Guardian System following) to protect the engine. You should contact your servicing dealer at your earliest convenience.

It is important to note that in either of the above scenarios, the horn will only sound one time. If you key the engine off and re‑start it, the horn will sound again, one time, if the fault is still present. For visual display of the specific engine functions and additional engine data, refer to SmartCraft Product information, following.

Page 50

FEATURES & CONTROLS

The operator is able to correct a couple engine problems indicated by the warning horn. These conditions are as follows:

• Cooling system (water pressure or engine temperature) problem. The warning horn will sound Intermittent short beeps for six seconds. Stop the engine and check the water intake holes in the gearcase for obstruction.

• Low oil pressure problem. The warning horn will sound a continuous six second beep. Stop the engine and check for low engine oil level. Refer to Fuel and Oil – Checking and Adding Engine Oil.

ENGINE GUARDIAN SYSTEM

The Engine Guardian System monitors the critical sensors on the engine for any early indications of problems. Engine Guardian is functional whenever your engine is operating, so you never have to be concerned about whether or not you are protected. The system will respond to a problem by sounding the warning horn for six seconds and/or reducing engine power in order to provide engine protection.

If the Guardian System has been activated, reduce throttle speed. The problem will need to be identified and corrected, if possible. The system must be reset before the engine will operate at higher speeds. Moving the throttle lever back to the idle position will reset the system.

SMARTCRAFT PRODUCT

A Mercury SmartCraft System instrument package can be purchased for this outboard. A few of the functions the instrument package will display are engine RPM, coolant temperature, oil pressure, water pressure, battery voltage, fuel consumption and engine operating hours.

The SmartCraft Instrument package will also aid in Engine Guardian diagnostics. The SmartCraft Instrument package will display critical engine alarm data and potential problems.

Page 51

FEATURES & CONTROLS

Power Trim and Tilt

Your outboard has a trim/tilt control called power trim. This enables the operator to easily adjust the position of the outboard by pressing the trim switch. Moving the outboard in closer to the boat transom is called trimming in or down. Moving the outboard further away from the boat transom is called trimming out or up. The term trim generally refers to the adjustment of the outboard within the first 20° range of travel. This is the range used while operating your boat on plane. The term tilt is generally used when referring to adjusting the outboard further up out of the water. With the engine turned off, the outboard can be tilted out of the water. At low idle speed, the outboard can also be tilted up past the trim range to permit, for example, shallow water operation.

28520

a - Remote control trim switch b - Panel mount trim switch c - Tilt range of travel d - Trim range of travel

POWER TRIM OPERATION

With most boats, operating around the middle of the trim range will give satisfactory results. However, to take full advantage of the trimming capability there may be times when you choose to trim your outboard all the way in or out. Along with an improvement in some performance aspects comes a greater responsibility for the operator, and this is being aware of some potential control hazards.

Page 52

FEATURES & CONTROLS

The most significant control hazard is a pull or torque that is felt on the steering wheel or tiller handle. This steering torque results from the outboard trimmed so that the propeller shaft is not parallel to the water surface.

WARNING

Trimming the outboard beyond a neutral steering condition may result in a pull on the steering wheel or tiller handle and loss of boat control. Maintain control of the boat if trimming beyond a neutral steering condition.

Consider the following lists carefully. Trimming in or down can:

• Lower the bow

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

• Generally improve the ride in choppy water

• Increase steering torque or pull to the right (with the normal right hand rotation propeller)

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

WARNING

Operating the boat at high speeds with the outboard trimmed too far under can create excessive bow steer, resulting in the operator losing control of the boat. Install the trim limit pin in a position that prevents excessive trim under and operate the boat in a safe manner.

• In rare circumstances, the owner may decide to limit the trim in. This is accomplished by repositioning the tilt stop pins into the desired adjustment holes in the transom brackets.

Trimming out or up can:

• Lift the bow higher out of the water

Page 53

FEATURES & CONTROLS

• Generally increase top speed

• Increase clearance over submerged objects or a shallow bottom

• Increase steering torque or pull to the left at a normal installation height (with the normal right hand rotation propeller)

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

• Cause engine overheating if any cooling water intake holes are above the water line

TILTING OPERATION

To tilt outboard, shut off the engine and press the trim/tilt switch or auxiliary tilt switch to the up position. The outboard will tilt up until the switch is released or it reaches its maximum tilt position.

1. Press the knob in and rotate it to engage the tilt support lever.

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

3. To disengage the tilt support lever, raise the outboard off the support lever and rotate the lever down. Lower the outboard.

28931

a - Tilt support lever b - Knob

MANUAL TILTING

If the outboard cannot be tilted using the power trim/tilt switch, the outboard can be manually tilted.

Page 54

FEATURES & CONTROLS

1. Turn out the manual tilt release valve three turns counterclockwise. This allows manual tilting of the outboard. Tilt the outboard to the desired position and tighten the manual tilt release valve.

26809

NOTE: The manual tilt release valve must be tightened before operating the outboard to prevent the outboard from tilting up during reverse operation.

AUXILIARY TILT SWITCH

The auxiliary tilt switch can be used to tilt the outboard up or down using the power trim system.

28534

a - Auxiliary tilt switch

SHALLOW WATER OPERATION

When operating the boat in shallow water, the outboard can be tilted beyond the maximum trim range to prevent hitting bottom.

26803

Page 55

FEATURES & CONTROLS

1. Reduce engine speed below 2000 RPM.

2. Tilt outboard up, keeping the water intake holes submerged at all times.

3. Operate the engine at slow speed only. If engine speed exceeds 2000 RPM, the outboard will automatically return down to the maximum trim range.

Throttle Grip Friction Adjustment ‑ Tiller Handle Models

Throttle Grip Friction Knob ‑ Turn friction knob to set and maintain the throttle at desired speed. Turn knob clockwise to tighten friction and turn knob counterclockwise to loosen friction.

19807

a - Loosen friction b - Tighten friction

Steering Friction Adjustment

TILLER HANDLE MODELS

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

Page 56

FEATURES & CONTROLS

NOTE: To maintain proper adjustment, the locknut located on top of the steering friction lever pivot shaft can be tightened.

26811

a - Tighten friction b - Loosen friction

c - Locknut

REMOTE STEERING MODELS

WARNING

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

Page 57

FEATURES & CONTROLS

Steering Friction Adjustment ‑ Adjust this screw to achieve the desired steering friction (drag) on the steering wheel. Turn screw clockwise to tighten friction or turn counterclockwise to loosen friction.

28519

a - Loosen friction b - Tighten friction

Trim Tab Adjustment

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

26816

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

MODELS WITHOUT POWER TRIM

Operate your boat at normal cruising speed trimmed to desired position by installing the tilt pin in the desired tilt pin hole. Turn your boat left and right and note the direction the boat turns more easily.

Page 58

FEATURES & CONTROLS

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

MODELS WITH POWER TRIM

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

Page 59

OPERATION

Pre‑Starting Check List

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

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

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

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

• Fuel supply OK.

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

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

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

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

• Make inspection checks listed in Maintenance ‑ Inspection and Maintenance Schedule.

Operating In Freezing Temperatures

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

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

Operating In Salt Water Or Polluted Water

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

Page 60

OPERATION

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

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

Pre‑Starting Instructions

1. Check the engine oil level.

28525

2. Make sure the cooling water intake is submerged.

NOTICE

Failure to provide sufficient cooling water will damage the water pump and cause the engine to overheat. Provide a sufficient supply of water at the water inlets during operation.

26837

Engine Break‑in Procedure

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

Page 61

OPERATION

1. For the first hour of operation, run the engine at varied throttle settings up to 3500 RPM or at approximately half throttle.

2. For the second hour of operation, run the engine at varied throttle settings up to 4500 RPM or at three‑quarter throttle, and during this period of time, run it at full throttle for approximately one minute every ten minutes.

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

Starting the Engine ‑ Remote Control Models

Before starting, read the pre‑starting check list, special operating instructions, and engine break‑in procedure in the Operation section.

NOTICE

Failure to provide sufficient cooling water will damage the water pump and cause the engine to overheat. Provide a sufficient supply of water at the water inlets during operation.

1. Open fuel tank vent screw (in filler cap) on manual venting type fuel tanks.

19748

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

27348

Page 62

OPERATION

3. Set the lanyard stop switch to "RUN" position. Refer to General Information ‑ Lanyard Stop Switch.

19791

4. Shift outboard to neutral ("N") position.

26838

5. Move the throttle‑only lever to the fully closed position or press the throttle‑only button.

26840

a - Fully closed position b - Maximum fast idle speed position

6. Starting a flooded engine ‑ Advance the throttle‑only lever or control handle to the maximum throttle‑only position and continue to crank the engine for starting. Immediately reduce engine speed after engine starts.

Page 63

OPERATION

7. Turn ignition key to the "START" position. If the engine fails to start in ten seconds, return the key to the "ON" position, wait 30 seconds and try again.

19804

8. After engine starts, check for a steady stream of water flowing out of the water pump indicator hole.

28521

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

WARMING UP ENGINE

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

Starting the Engine ‑ Tiller Handle Models

Before starting, read the pre‑starting check list, special operating instructions, and engine break‑in procedure in the Operation section.

NOTICE

Failure to provide sufficient cooling water will damage the water pump and cause the engine to overheat. Provide a sufficient supply of water at the water inlets during operation.

Page 64

OPERATION

1. Open fuel tank vent screw (in filler cap) on manual venting type fuel tanks.

19748

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

28526

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

27348

4. Set the lanyard stop switch to "RUN" position. Refer to General Information ‑ Lanyard Stop Switch.

19791

Page 65

OPERATION

5. Shift outboard to neutral ("N") position.

28522

6. Set the throttle grip to start position.

7. Starting a flooded engine ‑ Set the throttle grip to half‑way position.

ART

0%100

START

0%100

START

19799

a - Start position b - Half‑way position

8. Turn the ignition key to the "START" position. If the engine fails to start in ten seconds, return the key to the "ON" position, wait 30 seconds and try again.

19804

WARNING

Rapid acceleration can result in serious injury or death from being thrown within or out of the boat. Decrease engine speed before shifting into gear.

Page 66

OPERATION

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

28521

WARMING UP ENGINE

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

Gear Shifting

IMPORTANT: Observe the following:

• Never shift outboard into gear unless engine speed is at idle.

• Do not shift outboard into reverse when the engine is not running.

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

28523

Page 67

OPERATION

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

26779

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

26842

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

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

Stopping The Engine

1. Remote Control Models ‑ Reduce engine speed and shift outboard to neutral position. Turn ignition key to "OFF" position.

26843

Page 68

OPERATION

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

26776

Emergency Starting

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

NOTE: EFI models ‑ Engine must have a fully charged battery to start the engine.

1. Remove flywheel cover or manual starter assembly.

26844

2. Shift outboard to neutral ("N") position.

28528

Page 69

OPERATION

WARNING

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

3. Electric start models ‑ Turn the ignition key to "ON" position.

26846

WARNING

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

WARNING

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

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

Page 70

OPERATION

5. Pull the starter rope to start the engine.

26848

Page 71

MAINTENANCE

Outboard Care

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

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

SELECTING REPLACEMENT PARTS FOR YOUR OUTBOARD

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

EPA Emissions

EMISSION CERTIFICATION LABEL

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

21096

a - Idle speed b - Engine horsepower c - Piston displacement d - Part number e - Valve clearance (if

applicable)

f - Family number g - Maximum emission

output for the engine

family

h - Timing specification i - Recommended spark

plug and gap

Page 72

MAINTENANCE

OWNER RESPONSIBILITY

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

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

Inspection and Maintenance Schedule

BEFORE EACH USE

• Check engine oil level. See Fuel & Oil ‑ Checking and Adding Engine Oil.

• Check that lanyard stop switch stops the engine.

• Visually inspect the fuel system for deterioration or leaks.

• Check outboard for tightness on transom.

• Check steering system for binding or loose components.

• Visually check steering link rod fasteners for proper tightness. See Steering Link Rod Fasteners.

• Check propeller blades for damage.

AFTER EACH USE

• Flush out the outboard cooling system if operating in salt or polluted water. See Flushing the Cooling System.

• Wash off all salt deposits and flush out the exhaust outlet of the propeller and gearcase with fresh water if operating in salt water.

EVERY 100 HOURS OF USE OR ONCE YEARLY, WHICHEVER OCCURS FIRST

• Lubricate all lubrication points. Lubricate more frequently when used in salt water. See Lubrication Points.

• Change engine oil and replace the oil filter. The oil should be changed more often when the engine is operated under adverse conditions such as extended trolling. See Changing Engine Oil.

Page 73

MAINTENANCE

• Inspect thermostat visually for corrosion and broken spring. Make sure thermostat closes completely at room temperature.

• Check engine fuel filter for contaminants. See Fuel System.

•

Check engine timing setup.

• Check corrosion control anodes. Check more frequently when used in salt water. See Corrosion Control Anodes.

• Drain and replace gearcase lubricant. See Gearcase Lubrication.

•

Lubricate splines on the driveshaft.

• Check power trim fluid. See Checking Power Trim Fluid.

• Inspect battery. See Battery Inspection.

•

Check control cable adjustments.

• Inspect timing belt. See Timing Belt Inspection.

• Check tightness of bolts, nuts, and other fasteners.

• Check cowl seals to make sure seals are intact and not damaged.

• Check internal cowl sound reduction foam (if equipped) to make sure foam is intact and not damaged.

• Check that the intake silencer (if equipped) is in place.

• Check that the idle relief muffler (if equipped) is in place.

• Check for loose hose clamps and rubber boots (if equipped) on the air intake assembly.

EVERY 300 HOURS OF USE OR THREE YEARS

• Replace spark plugs at first 300 hours or third year. After that, inspect spark plugs every 300 hours or three years. Replace spark plugs as needed. See Spark Plug Inspection and Replacement.

• Replace water pump impeller (more often if overheating occurs or reduced water pressure is noted).

•

Check and adjust valve clearance, if necessary.

BEFORE PERIODS OF STORAGE

• Refer to Storage procedure. See Storage section.

1. These items should be serviced by an authorized dealer.

Page 74

MAINTENANCE

Flushing the Cooling System

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

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

WARNING

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

1. Place the outboard in either the operating position (vertical) or in a tilted position.

2. Remove the propeller. Refer to Propeller Replacement.

3. Thread a water hose into the rear fitting. Partially open the water tap (1/2 maximum). Do not open the water tap all the way as this allows a high pressure flow of water.

IMPORTANT: Do not run engine above idle when flushing.

4. Shift the outboard into neutral. Start the engine and flush the cooling system for at least five minutes. Keep the engine speed at idle.

5. Stop the engine. Turn off the water and remove the hose. Reinstall the propeller.

28518

Page 75

MAINTENANCE

Top Cowl Removal and Installation

REMOVAL

1. Pull out the rear lock lever and remove the top cowl.

28439

INSTALLATION

1. Lower the top cowl over the engine.

2. Bring the front of the cowl down first and engage the front hook. Lower the cowl into its seated position and apply downward pressure to the back of the cowl to lock it in place. Gently pull up on the back of cowl to make sure it is securely fastened.

28445

Exterior Care

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

Battery Inspection

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

Page 76

MAINTENANCE

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

1. Turn off the engine before servicing the battery.

2. Add water as necessary to keep the battery full.

3. Make sure the battery is secure against movement.

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

5. Make sure the battery is equipped with a non‑conductive shield to prevent accidental shorting of battery terminals.

Fuel System

WARNING

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

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

FUEL LINE INSPECTION

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

ENGINE FUEL FILTER

Check the fuel filter for water accumulation or sediment. If water is in the fuel, remove the sight bowl and drain the water. If the filter appears to be contaminated, remove and replace.

Page 77

MAINTENANCE

REMOVAL

1. Read the preceeding fuel system servicing information and warning.

2. Pull out the filter assembly from mount. Hold onto the cover to prevent it from turning and remove the sight bowl. Empty contents into an approved container.

3. Inspect the filter element, If replacement is necessary, replace the filter assembly.

28414

a - Cover b - Filter element

c - O‑ring seal d - Sight bowl

INSTALLATION

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

1. Push the filter element into the cover.

2. Place the O‑ring seal into its proper position on the sight bowl and screw the sight bowl hand tight into the cover.

3. Push the filter assembly back into the mount.

Steering Link Rod Fasteners

IMPORTANT: The steering link rod that connects the steering cable to the engine must be fastened using special washer head bolt ("e" ‑ Part Number 10‑856680) and self‑locking nylon insert locknuts ("b" & "d" ‑ Part Number 11‑826709113). These locknuts must never be replaced with common nuts (non‑locking) as they will work loose and vibrate off, freeing the link rod to disengage.

Page 78

MAINTENANCE

WARNING

26895

a - Spacer (12‑71970) b - Nylon insert locknut (11‑826709113) c - Flat washer (2) d - Nylon insert locknut (11‑826709113) e - Special washer head bolt (10‑856680)

Description Nm lb. in. lb. ft.

Nylon insert locknut "b" 27 20

Nylon insert locknut "d" Tighten until seats then back off 1/4 turn

Special washer head bolt 27 20

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

Assemble steering link rod to engine with special washer head bolt, locknut and spacer. First torque bolt, then locknut to specification.

Page 79

MAINTENANCE

Corrosion Control Anode

Your outboard has corrosion control anodes at different locations. An anode helps protect the outboard against galvanic corrosion by sacrificing its metal to be slowly corroded instead of the outboard metals.

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

ANODE LOCATION - MODELS WITH 87.3 MM (3-7/16 IN.) GEARCASES

One of the anodes is the trim tab installed on the gearcase. Another anode is installed on the bottom of the transom bracket assembly.

28884

a - Anode on the transom bracket assembly b - Trim tab

ANODE LOCATION - MODELS WITH 108 MM (4-1/4 IN.) GEARCASES

Two anodes are located on the sides of the gearcase. Another anode is installed on the bottom of the transom bracket assembly.

28883

a - Anode on the transom bracket assembly b - Anodes on the side of the gearcase

Page 80

MAINTENANCE

Propeller Replacement ‑ 87.3 mm (3 ‑ 7/16 in.) Diameter Gearcase

WARNING

Rotating the propeller shaft may cause the engine to crank over and start. To prevent this type of accidental engine starting and possible serious injury caused from being struck by a rotating propeller, always turn the ignition key or lanyard stop switch to the "OFF" position and remove the spark plug leads from the spark plugs while servicing.

1. Shift the outboard to the neutral ("N") position.

28528

2. Remove the spark plug leads to prevent engine from starting.

26899

3. Straighten the bent tabs on the propeller nut retainer.

26900

4. Place a block of wood between the gearcase and propeller to keep the propeller from turning. Remove the propeller nut.

Page 81

MAINTENANCE

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

26901

6. Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants Anti‑Corrosion Grease or 2‑4‑C with Teflon.

26902

Tube Ref No. Description Where Used Part No.

Anti-Corrosion Grease

Propeller shaft

92-802867Q

2-4-C with Teflon Propeller shaft 92-802859A1

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

Page 82

MAINTENANCE

7. Flo‑Torq I drive hub propellers ‑ Install the forward thrust hub, propeller, propeller nut retainer, and propeller nut onto the shaft.

26903

a - Propeller nut b - Propeller nut retainer

c - Propeller d - Forward thrust hub

8. Flo‑Torq II drive hub propellers ‑ Install the forward thrust hub, propeller, replaceable drive sleeve, rear thrust hub, propeller nut retainer, and propeller nut onto the shaft.

26904

a - Propeller nut b - Propeller nut retainer c - Rear thrust hub

d - Replaceable drive

sleeve

e - Propeller f - Forward thrust hub

9. Place the propeller nut retainer over the pins. Place a block of wood between the gearcase and the propeller and tighten the propeller nut to the specified torque.

Description Nm lb. in. lb. ft.

Propeller nut 75 55

Page 83

MAINTENANCE

10.Align the flat sides of the propeller nut with the tabs on the propeller nut retainer. Secure the propeller nut by bending the tabs up and against the flats on the propeller nut.

26906

a - Pins b - Tabs

11.Reinstall the spark plug leads.

Propeller Replacement ‑ 108 mm (4 ‑ 1/4 in.) Diameter Gearcase

WARNING

1. Shift the outboard to the neutral ("N") position.

28528

Page 84

MAINTENANCE

2. Remove the spark plug leads to prevent the engine from starting.

26899

3. Straighten the bent tabs on the propeller nut retainer.

26900

4. Place a block of wood between gearcase and propeller to keep the propeller from turning. Remove the propeller nut.

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

26901

Page 85

MAINTENANCE

6. Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants Anti‑Corrosion Grease or 2‑4‑C with Teflon.

26902

Tube Ref No. Description Where Used Part No.

Anti-Corrosion Grease

Propeller shaft

92-802867Q

2-4-C with Teflon Propeller shaft 92-802859A1

7. Flo‑Torq I drive hub propellers ‑ Install the thrust washer, propeller, continuity washer, thrust hub, propeller nut retainer, and propeller nut onto the shaft.

26908

a - Propeller nut b - Propeller nut retainer c - Thrust hub

d - Continuity washer e - Propeller f - Thrust washer

Page 86

MAINTENANCE

8. Flo‑Torq II drive hub propellers ‑ Install the forward thrust hub, replaceable drive sleeve, propeller, thrust hub, propeller nut retainer, and propeller nut onto the shaft.

26941

a - Propeller nut b - Propeller nut retainer c - Thrust hub

d - Propeller e - Replaceable drive

sleeve

f - Forward thrust hub

NOTE: We recommend the installation of a Flo‑Torq III drive hub propeller for stainless steel applications.

9. Flo‑Torq III drive hub propellers ‑ Install the forward thrust hub, replaceable drive sleeve, propeller, thrust hub, propeller nut retainer, and propeller nut onto the shaft.

3223

a b c d

e f

a - Propeller nut b - Propeller nut retainer c - Rear thrust hub

d - Propeller e - Replaceable drive

sleeve

f - Forward thrust hub

10.Place a block of wood between the gearcase and propeller and torque the propeller nut to the specified torque.

Description Nm lb. in. lb. ft.

Propeller nut 75 55

Page 87

MAINTENANCE

11.Secure the propeller nut by bending three of the tabs into the thrust hub grooves.

26945

Spark Plug Inspection And Replacement

WARNING

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

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

26899

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

26946

Page 88

MAINTENANCE

3. Set the spark plug gap to specification.

26947

Spark Plug

Spark plug gap 1.0 mm (0.040 in.)

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

Description Nm lb. in. lb. ft.

Spark plug 27 20

Fuse Replacement

IMPORTANT: Always carry spare 20 amp fuses. The electrical wiring circuits on the outboard are protected from

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

Page 89

MAINTENANCE

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

28900

a - Spare fuse slot b - Diagnostic circuit 4‑pin connector c - SmartCraft data bus circuit ‑ 5 amp fuse d - Main circuit ‑ 25 amp fuse e - Spare 20 amp fuse f - Main relay/accessories ‑ 15 amp fuse g - Ignition coil circuit ‑ 25 amp fuse h - Fuel pump/idle air control/fuel injector circuits ‑ SFE 20

amp fuse

i - Blown fuse j - Good fuse

Timing Belt Inspection

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

a. Cracks in the back of the belt or in the base of the belt teeth. b. Excessive wear at the roots of the cogs. c. Rubber portion swollen by oil. d. Belt surfaces roughened.

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MAINTENANCE

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

26958

Lubrication Points

1. Lubricate the following with Quicksilver or Mercury Precision Lubricants Anti‑Corrosion Grease or 2‑4‑C with Teflon.

Tube Ref No. Description Where Used Part No.

Anti-Corrosion Grease

Propeller shaft

92-802867Q

2-4-C with Teflon Propeller shaft 92-802859A1

2. Lubricate the following with Quicksilver or Mercury Precision Lubricants 2‑4‑C with Teflon or Special Lubricant 101.

Tube Ref No. Description Where Used Part No.

2-4-C with Teflon

Tilt support lever,

swivel bracket, tilt

tube, steering cable

grease fitting

92-802859A1

Special Lubricant 101

Tilt support lever,

swivel bracket, tilt

tube, co-pilot shaft,

steering cable grease

fitting

92-802865Q0

• Tilt Support Lever ‑ Lubricate through fitting.

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• Swivel Bracket ‑ Lubricate through fitting.

28466

a - Tilt support lever b - Swivel bracket

• Tilt Tube ‑ Lubricate through fitting.

28461

• Co‑pilot shaft (tiller handle models) ‑ Lubricate through fitting. Move the steering friction lever back and forth while lubricating.

28823

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MAINTENANCE

•

WARNING

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

Steering Cable Grease Fitting (If equipped) ‑ Rotate steering wheel to fully retract the steering cable end into the outboard tilt tube. Lubricate through fitting.

28468

a - Fitting b - Steering cable end

3. Lubricate the following with light weight oil.

• Steering Link Rod Pivot Points ‑ Lubricate points.

28471

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MAINTENANCE

Checking Power Trim Fluid

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

28474

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

28476

Tube Ref No. Description Where Used Part No.

114

Power Trim and Steering Fluid

Power trim reservoir

92-858074K0

Changing Engine Oil

ENGINE OIL CAPACITY

Capacity Fluid Type

Engine oil

3.0 Liter

(3 U.S. Quarts)

Mercury Precision Parts or Quicksilver Synthetic

Blend 25W‑40 4‑Stroke Outboard Oil

Mercury Precision Parts or Quicksilver 10W‑30

4‑Stroke Outboard Oil

OIL CHANGING PROCEDURE

1. Tilt the outboard up to the trailer position.

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2. Turn the the outboard so the drain hole is facing downward. Remove the drain plug and drain the engine oil into an appropriate container. Lubricate the seal on the drain plug with oil and reinstall.

28531

a - Drain plug b - Drain hole

CHANGING OIL FILTER

1. Place a rag or towel below the oil filter to absorb any spilled oil.

2. Unscrew the old filter by turning the filter to the left.

3. Clean the mounting base. Apply a film of clean oil to the filter gasket. Do not use grease. Screw the new filter on until the gasket contacts the base, then tighten 3/4 to 1 turn.

28417

OIL FILLING

1. Remove the oil fill cap and add oil to the proper operating level.

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MAINTENANCE

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

28418

a - Oil fill cap

Gearcase Lubrication ‑ For 87.3 mm (3‑7/16 in.) Diameter Gearcase

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

Examine the drained gearcase lubricant for metal particles. A small amount of fine metal particles indicates normal gear wear. An excessive amount of metal filings or larger particles (chips) may indicate abnormal gear wear and should be checked by an authorized dealer.

DRAINING GEARCASE

1. Place outboard in a vertical operating position.

2. Place a drain pan below outboard.

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MAINTENANCE

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

26973

a - Vent plug b - Fill/drain plug

GEARCASE LUBRICANT CAPACITY

Gearcase lubricant capacity is approximately 340 ml (11.5 fl. oz.).

CHECKING GEARCASE LUBRICANT LEVEL AND REFILLING GEARCASE

1. Place outboard in a vertical operating position.

2. Remove vent plug.

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

IMPORTANT: Replace sealing washers if damaged.

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

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MAINTENANCE

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

26975

a - Vent hole b - Vent plug

c - Fill/drain plug

Gearcase Lubrication ‑ For 108 mm (4 ‑ 1/4 in.) Diameter Gearcase

DRAINING GEARCASE

1. Place outboard in a vertical operating position.

2. Place a drain pan below outboard.

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MAINTENANCE

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

26977

a - Vent plugs b - Fill/drain plug

GEARCASE LUBRICANT CAPACITY

Gearcase lubricant capacity is approximately 710 ml (24 fl. oz.).

CHECKING LUBRICANT LEVEL AND FILLING GEARCASE

1. Place outboard in a vertical operating position.

2. Remove the front vent plug and rear vent plug.

3. Place lubricant tube into the fill hole and add lubricant until it appears at the front vent hole. At this time install the front vent plug and sealing washer.

4. Continue adding lubricant until it appears at the rear vent hole.

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

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MAINTENANCE

6. Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer.

27001

a - Front vent plug b - Front vent hole c - Rear vent hole

d - Rear vent plug e - Fill/drain plug and

sealing washer

Submerged Outboard

A submerged outboard will require service within a few hours by an authorized dealer once the outboard is recovered from the water. This immediate attention by a servicing dealer is necessary once the engine is exposed to the atmosphere to minimize internal corrosion damage to the engine.

Page 100

STORAGE

Storage Preparation

The major consideration in preparing your outboard for storage is to protect it from rust, corrosion, and damage caused by freezing of trapped water.

The following storage procedures should be followed to prepare your outboard for out of season storage or prolonged storage (two months or longer).

NOTICE

Failure to provide sufficient cooling water will damage the water pump and cause the engine to overheat. Provide a sufficient supply of water at the water inlets during operation.

FUEL SYSTEM

IMPORTANT: Gasoline containing alcohol (ethanol or methanol) can cause a formation of acid during storage and can damage the fuel system. If the gasoline being used contains alcohol, it is advisable to drain as much of the remaining gasoline as possible from the fuel tank, remote fuel line, and engine fuel system.

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

• Portable Fuel Tank ‑ Pour the required amount of gasoline stabilizer (follow instructions on container) into fuel tank. Tip fuel tank back and forth to mix stabilizer with the fuel.

• Permanently Installed Fuel Tank ‑ Pour the required amount of gasoline stabilizer (follow instructions on container) into a separate container and mix with approximately one quart (one liter) of gasoline. Pour this mixture into fuel tank.

• Remove the fuel filter sight bowl and empty contents in a suitable container. Refer to Maintenance - Fuel System for removal and installation of filter. Add 3 cc (1/2 tsp.) of gasoline stabilizer into the fuel filter sight bowl and reinstall.

• Place the outboard in water or connect flushing attachment for circulating cooling water. Run the engine for 15 minutes to fill the engine fuel system.

Mercury 50 4-Stroke, 40 4-Stroke, 60 4-Stroke User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual