Mercury 15 FourStroke, 20 FourStroke User Manual

Page 1

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

This outboard motor's serial number plate contains in the lower left hand corner the CE mark. This outboard motor manufactured by Mercury Marine, Fond du Lac, Wisconsin, USA or Marine Power Europe Inc., Park Industriel, de Petit‑Rechain, Belgium complies with the requirements of the following directives by meeting the associated standards, as amended:

Recreational Craft Directive:

2003/44/EC amending 94/25/EC

Owner's manual (A.2.5) ISO 10240 Handling characteristics (A.4) ISO 8665 Outboard engine starting (A.5.1.4) ISO 11547 Fuel tanks (A.5.2.2) ISO 13591; ISO 8469 General steering system (A.5.4.1) ABYC P‑17 Exhaust emission requirements (B.

ISO 8178

Owner's manual (B.4) ISO 8665 Noise emission levels (C.1) ISO 14509

The notified body responsible for EC‑Type Examination for the engine exhaust emissions assessment under Modules B+C of Directive 2003/44/ EC and for noise emission assessment under Module Aa of Directive 2003/44/EC is:

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TÜV SÜD Munich, Germany Notified Body Number: 0123

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

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)

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 December 16, 2005. European Regulations Contact: Regulations and Product Safety Department, Mercury Marine, Fond du Lac, WI USA

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TABLE OF CONTENTS

iii

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

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

Selecting Accessories for Your Outboard..................................28

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

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

15/20 4Stroke Specifications ‑ International..............................30

Transporting

Carrying, Storing, and Transporting Your Outboard when

Removed from Boat ..................................................................32

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

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

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TABLE OF CONTENTS

Fuel and Oil

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

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

Engine Oil Recommendations...................................................38

Checking Engine Oil..................................................................38

Features and Controls

Tiller Handle Features...............................................................41

Remote Control Features..........................................................45

General Features.......................................................................45

Manual Tilt Features and Operation..........................................48

Power Tilt Features and Operation............................................52

Warning System Features and Operation.................................57

Trim Tab Adjustment.................................................................59

Operation

Pre‑Starting Check List..............................................................60

Operating in Freezing Temperatures.........................................60

Operating in Saltwater or Polluted Water..................................60

Operating Outboard as an Auxiliary Engine..............................61

Pre‑Starting Instructions............................................................61

Engine Break‑in Procedure........................................................62

Starting the Engine ‑ Tiller Handle Models................................62

Starting the Engine ‑ Remote Control Models...........................66

Gear Shifting .............................................................................70

Stopping the Engine .................................................................71

Emergency Starting...................................................................72

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TABLE OF CONTENTS

Maintenance

Outboard Care...........................................................................74

EPA Emissions..........................................................................74

Inspection and Maintenance Schedule......................................75

Flushing the Cooling System.....................................................77

Top Cowl Removal and Installation...........................................79

Battery Inspection .....................................................................79

Exterior Care..............................................................................79

Fuel System...............................................................................80

Steering Link Rod Fasteners.....................................................81

Corrosion Control Anode ..........................................................82

Propeller Replacement .............................................................84

Fuse Replacement ‑ Electric Start Models ............................... 86

Spark Plug Inspection and Replacement...................................88

Timing Belt Inspection............................................................... 89

Changing Engine Oil .................................................................89

Lubrication Points .....................................................................92

Gearcase Lubrication.................................................................95

Checking Power Tilt Fluid..........................................................97

Submerged Outboard................................................................98

Storage

Storage Preparation...................................................................99

Protecting External Outboard Components.............................100

Protecting Internal Engine Components..................................100

Gearcase.................................................................................100

Positioning Outboard for Storage............................................101

Battery Storage........................................................................101

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TABLE OF CONTENTS

Troubleshooting

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

.................................................................................................103

Engine Will Not Start................................................................103

Engine Runs Erratically...........................................................103

Performance Loss....................................................................104

Battery Will Not Hold Charge...................................................104

Owner Service Assistance

Local Repair Service................................................................105

Service Away from Home........................................................105

Parts and Accessories Inquiries..............................................105

Service Assistance..................................................................105

Mercury Marine Service Offices...............................................106

Engine Installation

Boat Horsepower Capacity......................................................108

Start in Gear Protection...........................................................108

Selecting Accessories for Your Outboard................................108

Lifting the Outboard.................................................................109

Installing Outboard...................................................................109

Steering Cable Installation.......................................................112

Steering Link Rod Fasteners...................................................113

Remote Wiring Harness and Control Cable Installation..........115

Battery Installation ‑ Electric Start Models...............................121

Battery Connections................................................................121

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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: THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

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.

Page 16

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.

Page 17

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: THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

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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 onboard is instructed in the basics of starting and operating the outboard and boat handling in case the driver is unable to operate the boat.

Before Operating Your Outboard

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

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

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

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.

Page 23

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.

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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 in serious injury or death due to occupants being thrown within or out of the boat. Always use required components and follow instructions and torque procedures.

10366

a - Self‑locking nuts

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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 26

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 27

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 28

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 29

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 30

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 31

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 32

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 33

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 34

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 35

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 36

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.

XXXXXXXX

XXXX

32300

a - Serial number b - Model designation

c - Year manufactured d - Certified Europe Insignia

(as applicable)

15/20 4Stroke Specifications ‑ International

Models 15 20

Horsepower 15 20 Kilowatts 11.1 14.8 Full Throttle RPM Range 5400 ‑ 6100 RPM Idle Speed in Forward

Gear

950 ± 50 RPM

Number of Cylinders 2 Piston Displacement 351 cc (21.4 cu. in.) Cylinder Bore 61.0 mm (2.40 in.)

Page 37

GENERAL INFORMATION

Models 15 20 Stroke 60 mm (2.36 in.) Recommended Spark

Plug

NGK DCPR6E

Spark Plug Gap 0.8 ‑ 0.9 mm (0.031 ‑ 0.035 in.) Gear Ratio 2.15:1 Recommended Gasoline Refer to Fuel and Oil Recommended Oil Refer to Fuel and Oil Gearcase Lubricant

Capacity

370 ml (12.5 fl. oz.)

Engine Oil Capacity 1.0 liter (1.1 quarts)

Battery Rating

465 marine cranking amps (MCA) or 350 cold

cranking amps (CCA)

Sound at Drivers Ear (ICOMIA 39‑94)

68.5

Page 38

TRANSPORTING

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

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

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

32122

a - Protector cap

2. Remove the outboard and hold it upright until the water is drained out.

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

abd

32179

a - Upright position b - Tiller handle down

c - Front side up d - Front side down

Page 39

TRANSPORTING

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.

MANUAL VENTING TYPE FUEL TANK

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

Trailering Boat/Outboard

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

Page 40

TRANSPORTING

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.

32176

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

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

Page 41

FUEL AND 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 42

FUEL AND 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 43

FUEL AND 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.

Page 44

FUEL AND OIL

Engine Oil Recommendations

We recommend the use of Mercury or Quicksilver SAE 10W‑30 multi‑viscosity 4‑Stroke Outboard Oil for general, all‑temperature use. If SAE 25W‑40 multi‑viscosity oil is preferred, use Mercury MerCruiser 4‑cycle engine oil or Quicksilver sterndrive & inboard 4‑cycle engine oil. Never use 4‑cycle engine oil that is not certified to meet or exceed any one or combination of the following American Petroleum Institute (API) Service Classification SH, SG, SF, CF‑4, CE, CD, CDII. Severe engine damage may result from use of an inferior oil.

+20

+40

+60

+80

F° C°

+100

–7

+16

+27

–18

+38

26795

Recommended SAE Viscosity for Engine Oil

a - SAE 25W‑40 viscosity oil may be used at temperatures

above 4 °C (40 °F)

b - SAE 10W‑30 viscosity oil is recommended for use in all

temperatures

Checking Engine Oil

IMPORTANT: Do not overfill. For accurate readings, check oil only when engine is cold or after engine has not run for at least an hour.

Page 45

FUEL AND OIL

1. Tilt outboard to vertical operating position.

2. Remove the top cowl. Refer to Maintenance - Cowl Removal and Installation.

3. Pull out the dipstick. Wipe the dipstick end with a clean rag or towel and push it back in all the way.

4. Pull the dipstick back out again and observe the oil level. Oil should be in the operating range between the upper and lower hole.

IMPORTANT: Do not try to fill the oil level to the top of the operating range (upper hole). Oil level is correct as long as it appears in the operating range between the upper and lower hole.

31988

a - Oil level operating range b - Dipstick c - Oil fill cap

5. If the oil level is below the operating range (lower hole), remove the oil fill cap and add approximately 200 ml (7 oz.) of specified outboard motor oil. Allow a few minutes for the added oil to drain to the oil sump and recheck the dipstick. Repeat the process until oil level is in the operating range between the upper and lower holes. Do not try to fill to the upper end of the operation range (upper hole).

Page 46

FUEL AND OIL

NOTE: Under certain conditions, the operating temperature of 4‑stroke outboard engines may not get hot enough to evaporate the normal fuel and moisture that accumulate in the crankcase. These conditions include operating at idle for long periods, repeated short trips, slow speed or quick stop‑and‑go operation, and operating in cooler climates. This additional fuel and moisture that collects in the crankcase eventually ends up in the oil sump and will add to the total volume of oil that appears on the dipstick reading. This increase in oil volume is known as oil dilution. Outboard engines can typically handle large amounts of oil dilution without causing durability problems. However, to ensure extended life of the outboard engine, Mercury recommends that the oil and filter be changed regularly following the oil change interval and using the recommended oil quality. It is further recommended that if your outboard is operated frequently in the conditions described above, that more frequent oil change intervals be considered.

6. Push the dipstick back in all the way.

7. Reinstall the oil fill cap hand‑tight.

8. Reinstall top cowl.

Page 47

FEATURES AND CONTROLS

Tiller Handle Features

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

28535

•

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

3274

a - Tiller lock release lever

Page 48

FEATURES AND CONTROLS

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

3273

a - Lock cap b - Locking mechanism

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

31955

a - Lanyard stop switch

b - Lanyard

• Engine stop switch ‑ Push in to stop engine.

31956

Page 49

FEATURES AND CONTROLS

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

4639

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

28542

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

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

31957

Page 50

FEATURES AND CONTROLS

• Throttle grip ‑ Controls engine speed and shifting. The outboard has three gear shift positions to provide operation: forward (F), neutral (N), and reverse (R).

N R

31971

• Choke/fast idle ‑ Pull out when starting a cold engine.

• Fuel primer ‑ Press in when starting a cold engine. Refer to Operation - Starting the Engine.

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

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

31961

a - Choke/fast idle b - Fuel primer c - Low oil pressure warning light d - Electric start button (electric start models)

Page 51

FEATURES AND CONTROLS

Remote Control Features

26800

a - Control handle ‑ forward, neutral, reverse b - Neutral release lever c - Power tilt switch (if equipped) ‑ Refer to Features and

Controls ‑ Power Tilt Features and Operation

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 - Throttle only lever ‑ Refer to Operation ‑ Starting the

Engine

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

Engine

General Features

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

Page 52

FEATURES AND CONTROLS

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.

31965

Tiller handle models

32190

Remote control models

a - Tighten b - Loosen

Page 53

FEATURES AND CONTROLS

• Fuel connector protector cap ‑ Place over the fuel connector when the fuel hose is disconnected.

32122

a - Fuel connector protector cap

• Cooling water intakes ‑ The outboard has two water intakes for cooling the engine, the primary water intake and the secondary water intake.

32141

a - Secondary water intake b - Primary water intake

• Water pump indicator hole ‑ Water spray from the hole indicates the water pump is pumping cooling water up to the engine.

31982

Page 54

FEATURES AND CONTROLS

Manual Tilt Features and Operation

• Tilt lever ‑ Allows the outboard to be locked into the shallow water drive position or the full up position. Refer to Basic

Tilting Operation.

• Tilt pin ‑ Set the vertical operating angle on the outboard. Refer to Setting the Operation Angle of the Outboard.

32138

a - Tilt lever b - Tilt pin

BASIC TILTING OPERATION

The tilt feature allows the operator to tilt the outboard to a higher tilt angle for operation in shallow water, or tilt the outboard to the full up position.

When running the outboard, keep the tilt lever in the release position. This allows the outboard to return to the running position if the outboard should hit an underwater obstacle and be lifted up.

Moving the tilt lever to the tilt position will allow the outboard to lock into the shallow water drive position or the full up position.

15920

a - Release position b - Tilt position

Page 55

FEATURES AND CONTROLS

TILTING OUTBOARD TO FULL UP POSITION

1. Stop the engine.

2. Shift the outboard to forward gear position.

3. Position the tilt lever to the tilt position.

4. Take hold of the top cowl grip and tilt the outboard all the way up until it locks in place.

32150

LOWERING OUTBOARD DOWN TO RUN POSITION

Position the tilt lever to the release position. Raise outboard slightly to release it from its locked position and gently lower it.

SHALLOW WATER OPERATION

The shallow water drive position on the outboard allows you to position the outboard at a higher tilt angle to prevent hitting bottom.

IMPORTANT: Before tilting the outboard into the shallow water drive position, reduce engine speed to idle and shift engine into forward gear.

IMPORTANT: While in the shallow water drive position, do not operate the outboard in reverse. Operate the outboard at slow speed and keep the cooling water intake submerged.

1. Reduce engine speed to idle.

2. Shift engine into forward gear position.

3. Position the tilt lever to the tilt position.

4. Take hold of the top cowl grip and tilt up the outboard until it locks in the shallow water running position.

Page 56

FEATURES AND CONTROLS

5. To release the outboard out of shallow water drive, position the tilt lever to the release position, slightly lift up the outboard, and gently lower it down.

32151

SETTING THE OPERATION ANGLE OF THE OUTBOARD

The vertical operating angle of your outboard is adjusted by changing the position of the tilt pin in the six adjustment holes provided. Proper adjustment allows the boat to run stable, achieve optimum performance, and minimize steering effort.

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

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

Page 57

FEATURES AND CONTROLS

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

abc

32152

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

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

Adjusting the outboard close to the boat transom can:

• Lower the bow

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

• Generally improve the ride in choppy water

• Increase steering torque or pull to the right (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.

Adjusting the outboard away from the boat transom can:

Page 58

FEATURES AND CONTROLS

• Lift the bow out of the water

• Generally increase top speed

• Increase clearance over submerged objects or a shallow bottom

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

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

Power Tilt Features and Operation

POWER TILT

Models equipped with power tilt allows the operator to use the tilt switch to adjust the tilt position of the outboard from full down to full up.

This tilt system is designed to be adjusted when the engine speed is at idle speed or with the engine turned off.

At low idle speed, the outboard can be tilted up to permit shallow water operation.

UP DN

32174

a - Remote control tilt

switch

b - Panel mount tilt switch

c - Tiller handle tilt switch d - Cowl mounted tilt switch

TILTING THE OUTBOARD TO FULL UP POSITION

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

Page 59

FEATURES AND CONTROLS

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

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

3. Disengage the tilt support lever by slightly tilting up the outboard and releasing the tilt support bracket. Lower the outboard.

31919

a - Tilt support lever

PROKICKER CENTERING STRAPS FEATURE

ProKicker centering straps (if equipped) will center the outboard and prevent the outboard from turning while the outboard is tilted up.

The ProKicker centering straps will prevent the outboard from turning when tilted up. If using a steering tie bar to a second outboard, disconnect the steering tie bar to allow steering of the second outboard.

Page 60

FEATURES AND CONTROLS

WARNING

Avoid injury or death from loss of steering control. ProKicker centering straps prevent the outboard from turning when tilted up. If using a steering tie bar to a second outboard, disconnect the steering tie bar to allow steering of the second outboard before operating the boat.

32201

a - ProKicker centering straps

SHALLOW WATER OPERATION

When operating your boat in shallow water, the outboard can be tilted up to a higher tilt angle. Reduce engine speed to idle for tilting. Operate the outboard at slow speed while tilted up for shallow water operation. Keep the cooling water intake holes submerged in the water and continue to check for water discharge from the water pump indicator hole.

32193

MANUAL TILT RELEASE

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

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

Page 61

FEATURES AND CONTROLS

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.

31967

TILT-IN STOP ADJUSTMENT

NOTE: The outboard should be positioned against the tilt‑in stop pins during operation.

The adjustment of the tilt‑in stop pins will set the vertical operating angle of your outboard. Proper adjustment allows the boat to run stable, achieve optimum performance, and minimize steering effort.

32192

a - Tilt‑in stop pins

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

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

Page 62

FEATURES AND CONTROLS

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

abc

32191

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

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

Adjusting the outboard close to the boat transom can:

• Lower the bow

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

• Generally improve the ride in choppy water

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

Adjusting the outboard away from the boat transom can:

Page 63

FEATURES AND CONTROLS

• Lift the bow out of the water

• Generally increase top speed

• Increase clearance over submerged objects or a shallow bottom

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

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

Warning System Features and Operation

LOW OIL PRESSURE WARNING SYSTEM TEST

At engine start‑up, the low oil pressure warning light will turn on for 10 seconds as a normal system test.

32189

a - Low oil pressure warning light

LOW OIL PRESSURE

The low oil pressure warning light will turn on if the oil pressure drops too low. First, stop the engine and check the oil level. Add oil if necessary. If the oil is at the recommended level and the warning horn stays on, consult your dealer. Engine speed will be limited to 2100 RPM, however, you should not continue to run the engine.

Page 64

FEATURES AND CONTROLS

ENGINE OVERHEAT

Check for a steady stream flowing out of the water pump indicator hole. If no water is coming out of the water pump indicator hole or flow is intermittent, stop engine and check cooling water intake holes for obstruction. If no obstruction is found, this may indicate a blockage in the cooling system or a water pump problem. Have the outboard checked by your dealer. Operating the engine while overheated will cause engine damage.

31982

NOTE: Should overheating occur and you are stranded, stop the engine and allow it to cool down. This will usually allow some additional low speed (idle) running time before the engine starts to overheat again.

ENGINE OVER-SPEED LIMITER

If engine speed exceeds 6400 RPM, the over‑speed limiter will be activated. The engine timing will be momentarily retarded to prevent operation above this limit.

Some causes of engine over‑speed are as follows:

• Propeller ventilation

• A propeller which has an incorrect pitch or diameter

• Propeller hub slippage

• Outboard mounted too high on the transom

• Tilting the outboard out beyond a vertical position

• Cavitation of the propeller due to rough water or obstruction in the boat hull

Page 65

FEATURES AND CONTROLS

Trim Tab Adjustment

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

Operate your boat at normal cruising speed with the outboard set at the desired operating angle position. Turn your boat left and right and note the direction the boat turns more easily.

If adjustment is necessary, loosen the 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 the bolt and retest.

31970

Page 66

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 Saltwater or Polluted Water

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

Page 67

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.

Operating Outboard as an Auxiliary Engine

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

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

Pre‑Starting Instructions

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

31976

2. Check the engine oil level.

31977

Page 68

OPERATION

NOTICE

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

3. Make sure the cooling water intake is submerged.

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.

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

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

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

Starting the Engine ‑ Tiller Handle Models

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

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

19748

Page 69

OPERATION

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

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

27348

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

19791

4. Set the tiller handle gear shift to the neutral ("N") position.

N R

31971

5. Cold engine ‑ If the engine is cold, press the fuel primer in twice and pull out the choke/fast idle knob for starting. Push in the choke/fast idle knob after engine starts to warm up.

Page 70

OPERATION

NOTE: For initial start of a new engine or first start after a prolonged storage, the primer lines may have air in them. In this case, depress the fuel primer ten times rapidly.

31978

a - Choke/fast idle knob b - Fuel primer

IMPORTANT: Avoid engine flooding ‑ Do not press in the fuel primer if engine is warm. This will inject fuel into the engine and may cause a hard starting flooded condition.

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

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

31954

Page 71

OPERATION

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

31979

8. Flooded engine - If the engine will not start, push in the throttle only button and advance the throttle grip to fast throttle speed. Push in the choke knob and retry starting the engine. After the engine has started, immediately reduce throttle speed to idle.

31957

Page 72

OPERATION

9. Check for the low oil pressure warning light to turn off. The low oil pressure warning light will turn on for ten seconds after the outboard starts as a normal system test. If the light should stay on, refer to Features and Controls ‑ Warning System.

32208

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

31982

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

WARMING UP ENGINE

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

Starting the Engine ‑ Remote Control Models

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

Page 73

OPERATION

1. Open the fuel tank vent screw in the filler cap on manual venting type 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.

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

27348

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

19791

4. Set the remote control handle to the neutral position.

Page 74

OPERATION

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

26838

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

5. Temperatures above 0° C (32° F) ‑ Do not use the throttle‑only feature on the remote control for initial starting. After starting the engine, you can slowly advance the throttle‑only feature, to increase idle speed until the engine is warmed up. Keep engine speed below 2000 RPM.

27242

6. Temperatures below 0° C (32° F) ‑ Use the throttle‑only feature on the remote control to open the throttle slightly for initial starting. After starting the engine, you can slowly advance the throttle‑only feature, to increase idle speed until the engine is warmed up. Keep engine speed below 2000 RPM.

Page 75

OPERATION

NOTE: If the engine fails to start after five attempts, pump the throttle twice by moving the throttle‑only feature to the full open position two times. Return the throttle‑only feature back so that the throttle is only opened slightly and re‑try starting the engine.

33289

NOTE: Starting flooded engine ‑ Advance the throttle‑only feature and continue to crank the engine for starting.

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

19804

8. Check for the low oil pressure warning light to turn off. The low oil pressure warning light will turn on for ten seconds after the outboard starts as a normal system test. If the light should stay on, refer to Features and Controls ‑ Warning System.

32210

Page 76

OPERATION

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

31982

WARMING UP ENGINE

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

Gear Shifting

IMPORTANT: Never shift the outboard into gear unless engine speed is at idle. Do not shift the outboard into reverse when the engine is not running.

• Tiller handle models ‑ Your outboard has three gear shift positions to provide operation: forward (F), neutral (N), and reverse (R). When shifting, always stop at neutral position and allow the engine speed to return to idle.

Page 77

OPERATION

• Remote control models ‑ Your outboard has three gear shift positions to provide operation: forward (F), neutral (N), and reverse (R). When shifting, always stop at neutral position and allow the engine speed to return to idle.

N R

31971

27237

• 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 the outboard to the neutral position. Turn the ignition key to the "OFF" position.

26843

Page 78

OPERATION

2. Tiller handle models ‑ Reduce the engine speed and shift the outboard to the neutral position. Push in the engine stop button.

26776

Emergency Starting

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

WARNING

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

1. Shift the outboard into neutral.

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

3. Remove and retain the hardware securing the rewind starter. Remove the rewind starter and move it to the side.

31984

a - Rewind starter

Page 79

OPERATION

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

WARNING

High voltage is present when starting or operating the engine. Do not touch any ignition component, wiring, or spark plug lead when starting or operating the engine.

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 rewind starter or top cowl when engine is running.

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

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

31985

7. Pull the starter rope quickly.

Page 80

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.

SPARK PLUG:

GAP:

EMISSION CONTROL INFORMATION

THIS ENGINE CONFORMS TO EMISSION REGULATIONS FOR SPARK IGNITION MARINE ENGINES

CALIFORNIA AND U.S. EPA

REFER TO OWNERS MANUAL FOR REQUIRED MAINTENANCE, SPECIFICATIONS, AND ADJUSTMENTS

IDLE SPEED (in gear):

FAMILY:

FEL:

TIMING (IN DEGREES):

COLD VALVE CLEARANCE (mm)

INTAKE:

EXHAUST:

g/kWh

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 81

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 and 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.

• Remote control models ‑ 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 saltwater.

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

• Lubricate all lubrication points. Lubricate more frequently when used in saltwater. 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 82

MAINTENANCE

• Replace spark plugs at first 100 hours or first year. After that, inspect spark plugs every 100 hours or once yearly. Replace spark plugs as needed. See Spark Plug Inspection and Replacement.

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

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

• Check corrosion control anodes. Check more frequently when used in saltwater. See Corrosion Control Anode.

•

Check and adjust valve clearance, if necessary.

• Drain and replace gearcase lubricant. See Gearcase Lubrication.

• Check power tilt fluid. See Checking Power Tilt Fluid.

•

Lubricate splines on the driveshaft.

•

Remote control models ‑ 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 water pump impeller (more often if overheating occurs or reduced water pressure is noted).

BEFORE PERIODS OF STORAGE

• Refer to Storage procedure. See Storage section.

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

Page 83

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.

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

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

WARNING

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

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

31953

a - Flushing device

Page 84

MAINTENANCE

Flushing Device 91‑44357Q 2

9192

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

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

27259

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

IMPORTANT: Do not run engine above idle when flushing.

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

27260

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

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

Page 85

MAINTENANCE

Top Cowl Removal and Installation

REMOVAL

1. Release the rear latch.

2. Lift up the rear of the cowl and push it towards the front of the engine to clear the front hook.

31925

INSTALLATION

1. Engage the front hook and position the cowl over the engine.

2. Lock the rear latch.

Battery Inspection

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

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

1. Turn off the engine before servicing the battery.

2. 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.

Exterior Care

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

Page 86

MAINTENANCE

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.

FUEL LINE FILTER

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

31916

a - Fuel filter

Page 87

MAINTENANCE

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

Steering Link Rod Fasteners

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

WARNING

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

Page 88

MAINTENANCE

Assemble steering link rod to engine with bolt, locknut, spacer, and flat washers. Torque the locknut to specifications.

31917

a - Bolt (12‑71970) b - Flat washer c - Spacer d - Nylon insert locknut (11‑16147‑‑3) e - Steering bracket f - Nylon insert locknut (11‑16147‑‑3) (tighten until it seats,

then back off 1/4 turn)

Description Nm lb. in. lb. ft. Nylon insert locknut "d" 27 239 20

Nylon insert locknut "f"

Tighten until it seats, then back off 1/4

turn

Corrosion Control Anode

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

Page 89

MAINTENANCE

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

POWER TILT MODELS

One anode is the trim tab and another anode is installed on the swivel bracket. Two anodes are also located on the transom brackets.

MANUAL TILT MODELS

One anode is the trim tab and another anode is installed on the swivel bracket. One anode is also located on the transom brackets.

32036

Power tilt models

32037

Manual tilt models

a - Trim tab b - Swivel bracket anode

c - Transom bracket anode

Page 90

MAINTENANCE

Propeller Replacement

WARNING

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

26899

2. Shift the outboard into neutral (N).

26838

N R

31971

3. Straighten the cotter pin and pull it out using a pair of pliers.

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

Page 91

MAINTENANCE

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

31926

a - Cotter pin b - Nut

c - Rear thrust washer d - Front thrust hub

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

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

31927

Tube Ref No. Description Where Used Part No.

Anti-Corrosion Grease

Propeller shaft

92-802867Q

2-4-C with Teflon Propeller shaft

92-802859A

Page 92

MAINTENANCE

7. Install the front thrust hub onto the shaft so that the larger diameter end is facing the propeller.

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

9. Place a block of wood between the gearcase and the propeller to prevent rotation and tighten the propeller nut to the specified torque.

NOTE: If the propeller nut doesn't align with the propeller shaft hole after tightening, tighten the nut further to align with the hole.

10.Align the propeller nut with the propeller shaft hole. Insert a new cotter pin in the hole and bend the ends.

31926

a - Cotter pin b - Propeller nut c - Rear thrust washer d - Front thrust hub ‑ Larger diameter end towards

propeller

Description Nm lb. in. lb. ft. Propeller nut 12 106 8

Fuse Replacement ‑ Electric Start Models

IMPORTANT: Always carry spare 20 amp fuses.

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MAINTENANCE

The voltage regulator circuit and the electric starting circuit are protected from overload by a 20 amp fuse. If the fuse is blown, try to locate and correct the cause of the overload. If the cause is not found, the fuse may blow again.

20 20

32119

a - Voltage regulator circuit ‑ 20 amp fuse b - Spare fuse c - Electric starting circuit ‑ 20 amp fuse

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.

28619

Identifying a blown fuse

a - Good fuse b - Blown fuse

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MAINTENANCE

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 the spark plug if electrode is worn or the insulator is rough, cracked, broken, blistered, or fouled.

26946

3. Set the spark plug gap to specification.

26947

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

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MAINTENANCE

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 20 14

Timing Belt Inspection

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

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

• Excessive wear at the roots of the cogs

• Rubber portion swollen by oil

• Belt surfaces roughened

• Signs of wear on edges or outer surfaces of belt

31931

Changing Engine Oil

ENGINE OIL CAPACITY

Engine oil capacity is approximately 1.0 liter (1.1 U.S. quart).

OIL CHANGING PROCEDURE

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

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

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

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

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MAINTENANCE

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

5. Lubricate the seal on the drain plug with oil and reinstall. Tighten to the specified torque.

31922

4537

Description Nm lb. in. lb. ft. Drain plug 23.7 210 17

CHANGING OIL FILTER

1. Position the outboard in a level operating position.

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MAINTENANCE

2. Electric start models ‑ To gain clearance to the oil filter, remove the starter solenoid along with its rubber isolation mount from the metal plate that holds it.

31995

Electric start model

a - Starter solenoid b - Oil filter

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

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

5. 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.

6. If the starter solenoid was removed, reinstall the starter solenoid and rubber isolation mount to the metal plate.

31993

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MAINTENANCE

OIL FILLING

IMPORTANT: Do not try to fill the oil level to the top of the operating range (upper hole). Oil level is correct as long as it appears in the operating range between the upper and lower hole.

1. Position the outboard in a level operating position.

2. Remove the oil fill cap and add the recommended oil to the midpoint (middle hole) of the oil level operating range. Adding approximately 1.0 liter (1.1 U.S. quart) of oil will bring the oil level to the midpoint of the oil level range. Reinstall the oil fill cap.

31997

a - Oil level operating range b - Midpoint c - Dipstick d - Oil fill cap

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

Lubrication Points

1. 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.

Special Lubricant 101

Swivel bracket,

transom clamp

screws, tilt tube,

propeller shaft,

steering cable grease

fitting

92-802865Q0

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MAINTENANCE

Tube Ref No. Description Where Used Part No.

2-4-C with Teflon

Swivel bracket,

transom clamp

screws, tilt tube,

throttle/shift cables,

steering cable grease

fitting

92-802859A

• Swivel bracket ‑ Lubricate through fitting.

31934

• Transom clamp screws ‑ Lubricate threads.

• Tilt tube ‑ Lubricate through fittings.

31936

a - Tilt tube ‑ Lubrication fittings b - Transom clamp screws

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MAINTENANCE

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

31937

a - Steering cable lubrication fitting b - Steering cable end

WARNING

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

2. Lubricate the following with lightweight oil.

• Steering link rod pivot points ‑ Lubricate points.

31938

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

Mercury 15 FourStroke, 20 FourStroke User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual