! WARNING The engine exhaust from this product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. i 90-10263080 305 9.9/15/18 2 S (2-Stroke) EPA Emissions Regulations Outboards sold by Mercury Marine in the United States are certified to the United States Environmental Protection Agency as conforming to the requirements of the regulations for the control of air pollution from new outboard motors.
Warranty Message The product you have purchased comes with a limited warranty from Mercury Marine, the terms of the warranty are set forth in the Warranty Information Section of this manual. The warranty statement contains a description of what is covered, what is not covered, the duration of coverage, how to best obtain warranty coverage, important disclaimers and limitations of damages, and other related information. Please review this important information.
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 Engine type: Outboard Fuel type: Gasoline Combustion cycle: 2‑Stroke This declaration is issued under the sole responsibility of Mercury Marine and Brunswick Marine in EMEA Inc. Name and function: Mark D.
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TABLE OF CONTENTS Warranty Information Transfer of Warranty....................................................................1 Warranty Registration United States and Canada.......................1 Warranty Registration Outside the United States and Canada. . .2 FourStroke Outboard Limited Warranty United States, Canada, Europe and Confederation of Independent States......................3 FourStroke Outboard Limited Warranty (Middle‑East, and Africa) ......................................................
TABLE OF CONTENTS INSTALLATION Installing Outboard..................................................................... 40 Installing the Remote Control Devices....................................... 42 Battery Installation.....................................................................47 Propeller Selection..................................................................... 48 TRANSPORTING Removing the Motor..................................................................49 Carrying the Motor.......
TABLE OF CONTENTS OPERATION Pre‑Starting Check List..............................................................67 Operating in Freezing Temperatures.........................................67 Operating in Saltwater or Polluted Water..................................67 Operating at High Elevations.....................................................68 Operating Outboard as an Auxiliary Engine..............................68 Pre‑Starting Instructions..........................................................
TABLE OF CONTENTS STORAGE Pre‑season check......................................................................95 Storage Preparation................................................................... 95 Protecting External Outboard Components...............................96 Protecting Internal Engine Components....................................97 Gearcase...................................................................................97 Positioning Outboard for Storage................................
TABLE OF CONTENTS ASSOCIATED PARTS Associated Parts......................................................................108 NOTE:......................................................................................109 WIRING DIAGRAMS 9.9, 15, 18................................................................................110 EH Models...............................................................................112 E Models.................................................................................
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 the 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.
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.
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.
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.
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 ! 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
GENERAL INFORMATION WHILE BOAT IS MOVING a b 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.
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.
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.
GENERAL INFORMATION NOTE: 31
GENERAL INFORMATION Specifications MODEL 9.9 MH 9.9 EH Overall lengh 869 mm (34.2 in.) Overall width 345 mm (13.6 in.) Overall height S=1067 mm (42.0 in.), L=1194 mm (47.0 in.), UL=1321 mm (52.0 in.) Transom height S=435 mm 17.1 in.), L=562 mm (22.1 in.), UL=689 mm (52.0 in.) Weight 9.9 MH=41.0 kg (90.3 lb), 42.0 kg (92.6 lb), 43.0 kg (94.8 lb) 9.9 EH=44.0 kg (97.0 lb), 45.0 kg (99.2 lb), 46.0 kg (101.4 lb) Output 7.
GENERAL INFORMATION MODEL 15 MH 15 E 18 M Overrall lengh 869 mm (34.2 in.) 565 mm (22.2 in.) 869 mm (34.2 in.) Overall width 345 mm (13.6 in.) 290 mm (11.4 in.) 345 mm (13.6 in.) Overall height S=1067 mm (42.0 in.), L=1194 mm (47.0 in.), UL=1321 mm (52.0 in.) Transom height S=435 mm 17.1 in.), L=562 mm (22.1 in.), UL=689 mm (52.0 in.) Weight 15 MH, 18 M=41.0 kg (90.3 lb), 42.0 kg (92.6 lb), 43.0 kg (94.8 lb) 15 E=44.0 kg (97.0 lb), 45.0 kg (99.2 lb), 46.0 kg (101.4 lb) Output 11.0 kW 13.
GENERAL INFORMATION Component Identification 1 15 2 16 3 17 18 4 19 5 20 21 6 22 7 23 8 24 9 10 11 12 13 25 26 27 28 29 30 14 40465 MH Models 34
GENERAL INFORMATION 1 - Tilt handle 2 - Top cowl 3 - Bottom cowl 4 - Reverse lock lever 5 - Cooling water check port 6 - Drive shaft housing 7 - Water strainer 8 - Anti‑ventilation plate 9 - Anode/trim tab 10 - Sub water intake 11 - Propeller 12 - Oil plug (upper) 13 - Water plug 14 - Oil plug (lower) 15 - Starter handle 16 - Shift lever 17 - Stop switch 18 - Choke knob 19 - Connetor B 20 - Throttle grip 21 - Clamp screws 22 - Transom brackets 23 - Thrust rod 24 - Primer bulb 25 - Fuel pick up elbow 26 - Fu
GENERAL INFORMATION 1 15 2 16 3 17 18 4 19 5 20 21 6 22 7 23 8 24 9 25 10 11 12 13 26 27 28 29 30 31 14 40466 EH Models 36
GENERAL INFORMATION 1 - Tilt handle 2 - Top cowl 3 - Bottome cowl 4 - Reverse lock lever 5 - Cooling water check port 6 - Drive shaft housing 7 - Water strainer 8 - Anti‑ventilation plate 9 - Anode/trim tab 10 - Sub water intake 11 - Propeller 12 - Oil plug (upper) 13 - Oil plug (lower) 14 - Water plug 15 - Starter handle 16 - Shift lever 17 - Stop switch 18 - Starter switch button 19 - Choke knob 20 - Connectro B 21 - Throttle grip 22 - Clamp screws 23 - Transom brackets 24 - Thrust rod 25 - Primer bulb 26
GENERAL INFORMATION 1 15 2 16 3 17 18 4 19 5 20 21 6 22 7 23 8 24 9 25 10 11 12 13 26 27 28 29 30 31 14 32 33 34 35 40467 E Models 38
GENERAL INFORMATION 1 - Tilt handle 2 - Top cowl 3 - Bottom cowl 4 - Reverse lock lever 5 - Cooling water check port 6 - Drive shaft housing 7 - Water intake 8 - Anti‑ventilation 9 - Anode/trim tab 10 - Sub water intake 11 - Propeller 12 - Oil plug (upper) 13 - Water plug 14 - Oil plug (lower) 15 - Starter handle 16 - Shift lever 17 - Stop switch (optional) 18 - Choke knob 19 - Connector B 20 - Clamp screws 21 - transom brackets 22 - Thrust rod 23 - Battery cord 24 - Primer bulb 25 - Fuel pick up elbow 26 -
INSTALLATION Installing Outboard NOTE: If outboard is a remote control electric start model, follow instructions in the outboard installation manual (provided with the outboard) for installing remote steering shift and throttle cables and remote wiring harness. INSTALLING OUTBOARD ON TRANSOM IMPORTANT: Most boats are rated and certified in terms of their maximum horsepower, and this is shown on the boat's certification plate, Do not equip your boat with an outboard that exceeds this limit.
INSTALLATION 2. Twin engine: Position the outboard engines approximately 580 mm (22.8 in.) apart, measured from the center line of each engine, and equal distance (a) from the center of the transom. 580 mm a a 37509 3. Transom matching: Be sure that the anti‑ventilation plate of the outboard is below the water surface when running with the throttle wide open. If the above condition cannot be met due to the shape of the bottom of the boat, please consult the dealer.
INSTALLATION 5. Fasten outboard by drilling two 7.9 mm (5/16 in.) holes through the transom using transom clamp holes as a template. Fasten with two bolts, flat washers and locknuts. The use of clamp handles alone is insufficient to properly and safely secure the outboard to the transom. Use a marine waterproofing sealer in holes and around bolts to make the installation water tight.
INSTALLATION 2. Installation of the remote control box: Follow the instruction manual provided with the remote control box. 37529 3. Installing of the remote control cable (engine side) and the cord assembly (wiring harness). Fitting of holdercap and sleeve B guide • Throttle side: Attach the holder cap to the end of the cable and secure it with the nut.
INSTALLATION • Shift side: Attach the sleeve B guide to the end of the cable and secure it with the nut. a b c d e f g 40469 a - Cable outer groove e - Lock pin b - Shift cable f - Spring c - Nut g - Spring pin d - Sleeve B guide Fitting of remote control cable to the engine • Throttle side: Set the throttle cable to the cable clip and connect the holder cap to the ball joint of advancer arm.
INSTALLATION • Shift side: Set the shift cable to the cable clip and insert the lock pin at the shift lever fitting hole and turn it 90° to lock it.
INSTALLATION NOTE: Confirm whether the engine side shift is in gear when shifting the control lever of the remote control box to its first position in Forward (F) or Reverse (R) , about 32° and whether the throttle of the carburetor is fully open when shifting the lever further. Confirm whether the carburetor's throttle is fully closed when the control lever is shifted to the Neutral (N) position. If it is not, adjust the position of the ball holder.
INSTALLATION Battery Installation MOUNTING BATTERY Follow the battery manufacturer's instructions carefully. Mount battery securely to the hull in a place free from splashing water. NOTE: Electric starting outboards must have the battery cables connected to a battery whenever the engine is running, even if started manually, as damage to the charging system could result. BATTERY CONNECTIONS Connect a red cable to the positive (+) terminal first and a black cable to the negative (–) terminal of the battery.
INSTALLATION IMPORTANT: Please follow the instructions below: • Hydrogen gas is generated when charging a battery. Keep the battery in a well‑ventilated area during charging. Remove the battery from the boat; this will protect your hull and interior from damage. Electric sparks, cigarette smoking, and other sources of fire must be avoided in the charging area to prevent explosion of the battery. • The battery fluid (electrolyte) contains sulfuric acid.
TRANSPORTING Removing the Motor 1. Stop the engine. 2. Disconnect the fuel connector, the remote control cable, the battery cables, bracket fixing bolts and nuts etc., from the motor. 3. Remove the motor from the hull and completely drain the water from the outboard. Be sure to keep the engine higher than the propeller whenever you carry the motor. Carrying the Motor Be sure to keep the engine vertical posture whenever you carry the motor.
TRANSPORTING NOTE: If you store the motor horizontal posture, lay the motor down on the ground with the handles facing upward. 40803 Trailering Boat/Outboard The boat should be trailered with the outboard tilted down in a vertical (normal running),fully down position. NOTE: Trailering in the tilted position may cause damage to the motor, boat, etc.
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. IMPORTANT: The tilt lock and shallow water drive feature (tiller handle models) on the outboard are not intended to support the outboard in the tilted position when trailering.
TRANSPORTING 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.
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.
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 AND OIL 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.
FUEL AND OIL MIXING PROCEDURE Pour the full amount of oil along with approximately one gallon of gasoline into an approved container. Shake the two together until they are thoroughly mixed. Add the remainder of gasoline and shake container to ensure mixing. ENGINE BREAK‑IN Engine Break-in Fuel Mixture Use a 1:25 oil/gaoline mixture in the first tank of fuel. Engine Break-in Procedure Refer to Operation - Engine Break-In Procedure for correct break‑in procedure.
FUEL AND OIL 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.
FEATURES & CONTROLS Remote Control Features Your boat may be equipped with the remote control shown. If not, consult your dealer for a description of the functions and operations of the remote control.
FEATURES & CONTROLS 3. Tilt the engine all the way up until it locked in place. a 37535 a - Reverse lock lever 4. Tilt down: Pull the reverse lever upward until it stops. This is the tilt down position. 5. Lift up the engine slightly, and then allow gravity to lower it for you.
FEATURES & CONTROLS 1. Stop the engine. 2. Tilt up: Put the reverse lock lever in the tilt up position, and tilt up the engine to put the engine in the shallow water running position. a 37535 a - Reverse lock lever 3. Tilt down: Pull the reverse lock lever in the tilt down position, slightly lift up the engine, then put it down.
FEATURES & CONTROLS NOTE: Please follow the instructions below. • Make sure that the water inlet is submerged at all times and that water is continuously running out of the cooling water check port. • Be sure to run the engine slowly when using the shallow water drive. Running at higher speed will result in lack of control and may damage the engine. • Make sure the motor does not strike the bottom, especially when running in REVERSE.
FEATURES & CONTROLS • • Trim down: If the trim angle is excessive, the bow will rise out of the water and the speed will decrease. Furthermore, the bow may sway or the bottom may slam the water while cruising. In this case, decrease the trim angle by setting the trim position pin in a lower position. Trim up: If the trim angle is too small, the bow will dip into water, the speed will decrease, and water may enter the boat.
FEATURES & 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. Adjust the steering co‑pilot to achieve desired steering friction. • Turn clockwise for more friction. • Turn counterclockwise for less friction.
FEATURES & CONTROLS Throttle Grip Turning Friction Adjustment Turn the friction adjustment screw to set and maintain the throttle at desired speed. Turn screw clockwise to tighten friction and turn screw counterclockwise to loosen friction. a b 38388 a - Loosen friction b - Tighten friction Trim Tab Adjustment Propeller steering torque will cause the boat to pull in one direction.
FEATURES & CONTROLS The trim tab is located under the anti‑ventilation plate. • If the boat steers toward the left, set the trim tab in the direction of B. • If the boat steers toward the right, set the trim tab in the direction of C.
FEATURES & CONTROLS To adjust the load of the remote control lever, turn the throttle friction adjustment screw on the front of the remote control box. Turn clockwise to increase the friction and counterclockwise to decrease it.
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.
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.
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. 2. Loosen the air vent screw on the tank cap. 37518 3. Feed fuel to the carburetor by squeezing the primer bulb until it is firm. b a c 37714 c - Fuel flow direction a - To fuel tank b - To engine 4. Make sure the cooling water intake is submerged.
OPERATION 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. Engine Oil Use Mercury or Quicksilver engine oil or the other recommended one, that is, TCW‑3. NOTE: Do not mix different brands of oil. the mixing of different brands, or different kinds even if the same brand, may cause gelling, resulting in blockage of filter screens.
OPERATION Warming Up the Engine Warm the engine at low engine speeds for about three minutes. This allows the lubrication oil to circulate to all parts of the engine, Operating the engine without warming it up shortens the engine life. Be sure to check that cooling water is coming out of the water cheek port when warming up the engine. NOTE: If the engine is operated continuously without water discharging from the water pump cooling water hole or idle hole, the engine may overheat.
OPERATION IMPORTANT: If no water is coming out of the water pump indicator hole, stop engine and check cooling water intake for obstruction. No obstruction may indicate a water pump failure or blockage in the cooling system. These conditions will cause the engine to overheat. Have the outboard checked by your dealer. Operating the engine while overheated will cause serious engine damage. 1. 9.9, 15, 18, EH Models:Place the shift lever in the Neutral (N) position.
OPERATION 3. Pull out the choke knob all the way. (No choke operation is necessary when the engine is warm.) N 37521 4. 9.9, 15, 18 : Pull the starter handle slowly until you feel resistance. Then pull it quickly. a b 37523 b - Pull quickly a - Pull slowly 5. EH Models:Push the starter switch button. 6. Release pushing the button when the engine has started.
OPERATION IMPORTANT: If use the choke knob for the engine start, push it back when the engine has started. 7. E Models:Insert the main switch key. 8. Set the control lever in the Neutral (N) position. Raise the Neutral (N) warm‑up lever. N a b c d e 37715 a - Fully opened b - Fully closed c - Neutral warm‑up lever d - Ignition key e - Stop switch 9. Turn the main switch key to START position. Then, continuously push the key to operate the choke.
OPERATION IMPORTANT: Choke operation is not necessary if the engine is warm. b a c 37466 a - Off b - On c - Push to operate choke 10. Stop pushing the key when the engine has started. The key returns to the original position automatically. NOTE: The neutral warm‑up lever can not raise when the control lever shift in Forward (F) or Reverse (R). NOTE: E and EH Models: • Continuous operation of the starter motor shorter battery and starter motor life.
OPERATION 9.9, 15, 18, EH Models a b 37713 a - Reverse (R) b - Forward (F) 1. Forward: Turn the throttle grip to reduce engine speed. When the engine reaches trolling speed, quickly pull the shift lever to the Forward position. 2. Reverse: As when shifting to Forward, reduce the engine speed, when the engine reaches trolling speed, quickly push the shift lever to the Reverse position.
OPERATION 3. E Models e c b d f d g g i a h a 39483 abcde- Fully opened Throttle Forward (F) Shift Neutral (N) fghi- Reverse (R) Fully closed Neutral warm‑up lever Lock button 4. Forward: Quickly push the control lever to the Forward (F) position at 32°, where the gear is connected, while lifting up on the lock button located at the bottom of the control lever grip. Further shifting will open the throttle. 5.
OPERATION Stopping The Engine 9.9, 15, 18, EH Models 1. Turn the throttle grip to the low speed position. 2. Put the shift lever into Neutral position. Run the engine for 2– 3 minutes at idling speed if it has been running at full speed. 3. Push the stop switch to stop the engine. 37877 E Models 1. Put the shift lever into Neutral (N) position and run the engine for 2–3 minutes at idling speed.
OPERATION 2. Turn the main switch key to the OFF position or pull out the stop switch lock. b c d a 37716 a - Hook b - Off c - On d - Lanyard stop switch IMPORTANT: Please follow the instructions below. • After stopping the engine, close the air vent screw on the tank cap. • Disconnect the fuel connector of the engine or the fuel tank. • Disconnect the battery cable of the EH or E type engine, if the engine will not be used for more than 3 days.
OPERATION 2. Use a 10 mm socket wrench as a handle on the rope. 37880 ! WARNING High voltage is present any time the key is turned on, especially when starting or operating the engine. Do not touch ignition components or metal test probes and stay clear of spark plug leads when performing live tests. ! WARNING The exposed moving flywheel can cause serious injury. Keep your hands, hair, clothing, tools, and other objects away from engine when starting or running the engine.
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.
MAINTENANCE • • • • • • • • • • • Inspect and clean spark plugs. See Spark Plug Inspection and Replacement. Check fuel line filter for contaminants. See Fuel System. Check carburetor adjustments, if required. See Carburetor Adjustments. Check corrosion control anodes. Check more frequently when used in saltwater. See Corrosion Control Anodes. Drain and replace gearcase lubricant. See Gearcase Lubrication. Lubricate splines on the driveshaft and shift shaft.1. Electric start models ‑ Inspect battery.
MAINTENANCE ! 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.
MAINTENANCE Top Cowl Removal and Installation REMOVAL 1. Unlock the rear latch by pushing lever down. 29054 2. Lift rear of cowl and disengage front hook. 26851 INSTALLATION 1. Engage the front hook and push cowl back over the cowl seal. 2. Push cowl down and move the rear latch lever up to lock. 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.
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 the engine and disconnect the battery.
MAINTENANCE 1. Fuel tank filter: Loosen the fuel pickup elbow shown, remove it and clean the fuel filter. b a 37711 a - Filter b - Fuel pickup elbow 2. Engine filter: Remove cap, then clean the fuel filter in the engine. 40475 a a - Carburetor b b - Fuel filter 3. Fuel tank: Water or dirt in the fuel tank may cause engine trouble. Clean the tank at specified times or after the motor has been store for a long period. (over three months).
MAINTENANCE Fuse Replacement ‑ Electric Start Remote Control Models IMPORTANT: Always carry spare SFE 20 AMP fuses. The electric starting circuit is protected from overload by an SFE 20 AMP fuse. If the fuse is blown, the electric starter motor will not operate. Try to locate and correct the cause of the overload. If the cause is not found, the fuse may blow again. Replace fuse with a fuse of the same rating 3036 Replacing the anodes The outboard has a corrosion control anode installed on the gearcase.
MAINTENANCE Two anodes are fitted at the gear case and the mount bracket. When the anodes has been eroded more than 2/3, replace it immediately. a 37879 a - Anode/Trim tab IMPORTANT: Please follow the instructions below. 1. Never grease or paint the node. 2. At each inspection, retighten the anode fixing bolt, as it is likely to be subjected to electrolytic corrosion. Propeller Replacement ! WARNING Rotating propellers can cause serious injury or death.
MAINTENANCE 2. Remove the spark plug leads to prevent engine from starting. 26899 3. Place a block of wood between gearcase and propeller to hold propeller and remove propeller nut. 27296 4. Pull propeller straight off shaft. If propeller is seized to the shaft and cannot be removed, have the propeller removed by an authorized dealer.
MAINTENANCE 5. Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants Anti‑Corrosion Grease or 2‑4‑C with Teflon. 27305 Tube Ref No. Description Where Used Part No.
MAINTENANCE 6. Install forward thrust hub, propeller, rear thrust hub, propeller nut, and cotter pin onto the shaft. a b c e d f 37520 a - Cotter pin b - Nut c - Washer d - Propeller e - Propeller thrust hub f - Propeller shaft 7. Place a block of wood between gearcase and propeller and tighten propeller nut. 27341 8. Reinstall spark plug leads.
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 leads. Twist the rubber boots slightly and pull off. 26899 2. Remove the spark plugs to inspect.
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 Spark plug 27 lb. in. lb. ft. 20 Lubrication Points Only let an authorized Mercury service shop perform service or maintenance on this product. Be sure to use genuine parts, genuine lubricants, or recommended lubricants. Changing gear oil 1. Place the outboard in a vertical operating position. 2.
MAINTENANCE 4. Insert the oil tube nozzle into the lower oil plug hole, and fill with gear oil by squeezing the oil tube until oil flows out of the upper plug hole. a c b 40474 a - Upper oil plug b - Lower oil plug c - Water strainer 5. Install the upper oil plug, and then remove oil tube nozzle and install the lower oil plug. IMPORTANT: Use Mercury/Quicksilver gear oil or the recommended one (APL GL‑5: SAE #80 to #90). Required volume: Approximate 370 ml (0.10 gal.
STORAGE Pre‑season check 1. Check the electrolyte level, and measure the voltage and specific gravity of the battery. Specific Gravity at 20 °C Terminal Voltage (V) Charge Condition 1.120 10.5 Fully discharged 1.160 11.1 1/4 charged 1.210 11.7 1/2 charged 1.250 12.0 3/4 charged 1.280 13.2 Fully charged 2. Check that the battery is secure and the battery cables are properly installed. 3. Check that the shift and throttle function properly.
STORAGE Fill the fuel tank and engine fuel system with treated (stabilized) fuel to help prevent formation of varnish and gum. Proceed with the following instructions. • Portable fuel tank ‑ Pour the required amount of gasoline stabilizer (follow instructions on container) into fuel tank. Tip fuel tank back and forth to mix stabilizer with the fuel.
STORAGE Protecting Internal Engine Components NOTE: Make sure the fuel system has been prepared for storage. Refer to Fuel System, preceding. IMPORTANT: Refer to Maintenance ‑ Spark Plug Inspection and Replacement for correct procedure for removing spark plug boots. • Place the outboard in water or connect flushing attachment for circulating cooling water. Start the engine and let it run in neutral to warm up. • With engine running at fast idle, stop the fuel flow by disconnecting the remote fuel line.
STORAGE • • • Remove the battery from the boat and check water level. Recharge if necessary. Store the battery in a cool, dry place. Periodically check the water level and recharge the battery during storage.
TROUBLESHOOTING Starter Motor Will Not Crank The Engine (Electric Start Models) POSSIBLE CAUSES • Remote control models ‑ Blown 20 amp fuse in the starting circuit. Refer to Maintenance section. • Outboard is not shifted to neutral position. • Weak battery or battery connections are loose or corroded. • Ignition key switch failure. • Wiring or electrical connection faulty. • Starter motor or starter solenoid failure. Engine Will Not Start POSSIBLE CAUSES • Lanyard stop switch not in "RUN" position.
TROUBLESHOOTING Engine Runs Erratically POSSIBLE CAUSES • Spark plugs fouled or defective. Refer to Maintenance section. • Incorrect setup and adjustments. • Fuel is being restricted to the engine. • Engine fuel filter is obstructed. Refer to Maintenance section. • Fuel tank filter obstructed. • Stuck anti‑siphon valve on built in fuel tank. • Fuel line is kinked or pinched. • Fuel pump failure. • Ignition system component failure. Performance Loss POSSIBLE CAUSES • Throttle not fully open.
OWNER SERVICE ASSISTANCE Local Repair Service Always return your outboard to your local authorized dealer should the need for service arise. Only he has the factory trained mechanics, knowledge, special tools, equipment, and genuine parts and accessories to properly service your engine should the need occur. He knows your engine best. Service Away from Home If you are away from your local dealer and the need arises for service, contact the nearest authorized dealer.
OWNER SERVICE ASSISTANCE • • • Model and serial number of your outboard The name and address of your dealership Nature of problem Mercury Marine Service Offices For assistance, call, fax, or write. Please include your daytime telephone number with mail and fax correspondence. United States Telephone (920) 929‑5040 Fax (920) 929‑5893 Website www.mercurymarine.com Mercury Marine W6250 W. Pioneer Road P.O.
OWNER SERVICE ASSISTANCE Japan Telephone 81‑053‑423‑2500 Fax 81‑053‑423‑2510 Mercury Marine - Japan Anshin-cho 283-1 Hamamatsu Shizuoka-ken, Japan 435-0005 Japan Asia, Singapore Telephone 5466160 Fax 5467789 Mercury Marine Singapore 72 Loyang Way Singapore, 508762 103
MAINTENANCE LOG Maintenance Log Record all maintenance performed on your outboard here. Be sure to save all work orders and receipts.
ACCESSORIES Propeller Table Use a genuine propeller. A propeller must be selected so that the engine RPM measured at wide open throttle while eruising is within the recommended range: 9.9 = 4500 to 5300 RPM; 15, 18 = 5200 to 5800 RPM. Light boats ‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑‑ Heavy boats Size as indicated on propeller Propeller size diameter x pitch Model 10 9 8.5 8 7 6 234x250 234x231 234x224 234x199 234x174 234x155 mm mm mm mm mm mm 9.2x9.8 9.2x9.1 9.2x8.8 9.2x7.8 9.2x6.9 9.2x6.
ACCESSORIES Accessories OPTIONAL ACCESSORIES a b d c e f g h 106 40476
ACCESSORIES abcdefgh- Tachometer unit kit Tachometer Mercury/Quicksilver grease (250 g) Mercury/Quicksilver gear oil (500 mL) Touch‑up paint Mercury/Quicksilver engine oil (0.4 L, 1 L, 4 L, 20 L) Flushing attachment Extension cord for light (Lights are available on the market) . . . . . . . . . . . . . . . . . . . . .
ASSOCIATED PARTS Associated Parts Name Service tools Spare parts Other* Quantity Dimensions Tool bag 1 Pliers 1 Socket wrench 1 10 x 13 mm Socket wrench 1 21 mm Socket wrench handle 1 Screwdriver 1 Starter rope 1 1000 mm Spark plug 1 NGK B7HS‑10 or Champion L82C (Gap: 1.0 mm) Cotter pin 1 Fuel tank 1 Primer bulb 1 set Remote control box 1 set E Models only Remote control attachment 1 set E Models only * Not included as standard accessories in some markets. . . . . . . .
ASSOCIATED PARTS NOTE: 109
WIRING DIAGRAMS 9.
WIRING DIAGRAMS a - Remote control box (optional) b - Battery c - Extension cord (optional) d - Fuse e - Rectifier f - Extension cord for light (optional) g - Receptacle plug (optional) h - Lamp (12V 80W) [AC] (available on the market) i - Tachometer (optional) j - Tachometer, lead wire (optional) k - Separate cord, white (optional) l - Separate cord, white (optional) m -Flywheel magneto n - Spark plug o - Ignition coil p - CD unit q - Stop switch r - Stop cord (optional) 111
WIRING DIAGRAMS EH Models b c a d e f q p g o l k n m j i h 112 39494
WIRING DIAGRAMS a - Main switch b - Neutral switch c - Starter motor d - Starter cord e - Starter solenoid f - Fuse g - Rectifier h - Tachometer i - Tachometer lead wire (optional) j - Separate cord, yellow (optioal) k - Separate cord, white (optioal) l - Flywheel magneto m -Spark plugs n - Ignition coil o - CD unit p - Stop switch q - 12V 40AH or 12V 70AH (abilable on the market) 113
WIRING DIAGRAMS E Models a c d b e p q f o g m f n l k h j g j f 39495 114
WIRING DIAGRAMS a - Cord assembly b - 12V 40AH or 12V 70AH battery (available on the market) c - Tachometer d - Battery cord (+) e - Tachometer lead wire (optional) f - Fuse 15A g - Starter solenoid h - Flywheel magneto i - Spark plugs j - Ignition coil k - CD unit l - Lead wire, black m -Lead wire, brown n - Starter moter o - Choke solenoid p - Battery cord q - Stop switch (optional) 115
WIRING DIAGRAMS Single Remote Control Box a b d c 39496 116
WIRING DIAGRAMS abcd- Neutral switch Main switch Stop switch Cord assembly Wire Color Code Abbreviations Wire Color Abbreviations BLK Black BLU Blue BRN Brown GRY Gray GRN Green ORN or ORG Orange PNK Pink PPL or PUR Purple RED Red TAN Tan WHT White YEL Yellow LT or LIT Light DK or DRK 117 Dark
