Mercury 25 4-Stroke User Manual
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Mercury 25 4-Stroke User Manual

25 4-stroke
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See also: Operation & Maintenance Manual
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.
If the outboard motor's serial number plate contains the CE mark in the lower left-hand corner, the
following statement applies:
This outboard motor manufactured by Mercury Marine, Fond du Lac, WI, USA or Marine Power Europe
Inc. Park Industrel, de Petit-Rechain, Belgium complies with the requirements of the following directives
and standards, as amended:
Recreational Craft Directive: 94/25/EC; std. ISO 8665, ISO 11547
Machinery Directive:
EMC Directive:
Patrick C. Mackey
President, Mercury Marine, Fond du Lac, WI USA
European Regulations Contact:
Product Environmental Engineering Department, Mercury Marine, Fond du Lac, WI USA
98/37/EC,
89/336/EC; std. EN50081-1, SAE J551 (CISPR Pub. 12),
EN 50082-1, IEC 61000 PT4-2, IEC 61000 PT4-3
i

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Questions and answers

Lester D Smith
January 23, 2025

CCA of Starter Battery ? For 25hp Mercury Outboard !

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1 comments:
Mr. Anderson
February 10, 2025

The Cold Cranking Amps (CCA) of the starter battery for a 25hp Mercury 4-Stroke outboard is 350 CCA.

This answer is automatically generated

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Анести
May 30, 2025

Двигатель 2018 года производства Япония , при очередном то установлено превышение со выхлопных газах, что делать

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Summary of Contents for Mercury 25 4-Stroke

  • 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.

  • Page 2: Table Of Contents

    Warranty Registration Outside The United States And Canada................1 Mercury Marine Two Years Limited Warranty (Europe)..................2 Mercury Marine One Year Limited Warranty (Confederation of Independent States, Middle-East, Africa).... 3 3 Year Limited Warranty Against Corrosion......................5 Warranty Coverage And Exclusions........................6 GENERAL INFORMATION Boater's Responsibilities............................
  • Page 3 TABLE OF CONTENTS FEATURES & CONTROLS Remote Control Features............................. 26 Warning System..............................26 Manual Gas Assisted Tilt System - Tiller Handle Models..................28 Manual Tilt System - Remote Control Models Without Power Trim..............30 Power Trim And Tilt (If Equipped)........................33 Throttle Grip Friction Adjustment - Tiller Handle Models..................
  • Page 4 Engine Will Not Start............................65 Engine Runs Erratically............................65 Performance Loss..............................66 Battery Will Not Hold Charge..........................66 OWNER SERVICE ASSISTANCE Local Repair Service............................67 Service Away From Home............................ 67 Parts And Accessories Inquiries........................... 67 Service Assistance............................... 67 Mercury Marine Service Offices........................... 67...

  • Page 5: Warranty Information

    Warranty Registration United States And Canada 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.

  • Page 6: Mercury Marine Two Years Limited Warranty (Europe)

    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.

  • Page 7: Mercury Marine One Year Limited Warranty (Confederation Of Independent States, Middle-East, Africa)

    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.
  • Page 8 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.

  • Page 9: Year Limited Warranty Against Corrosion

    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.

  • Page 10: Warranty Coverage And Exclusions

    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.
  • Page 11 Use of other than Mercury Precision or Quicksilver parts when making warranty repairs. 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.

  • Page 12: General Information

    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.

  • Page 13: High-Speed And High-Performance Boat Operation

    For additional information, obtain a copy of our Hi-Performance Boat Operation booklet (part number 90-849250--1) from your dealer, distributor, or Mercury Marine. ob00307 Outboard Remote Control Models The remote control connected to your outboard must be equipped with a start in neutral only protection device.

  • Page 14: Lanyard Stop Switch

    GENERAL INFORMATION WARNING Disengagement of a steering link rod can result in the boat taking a full, sudden, sharp turn. This potentially violent action can cause occupants to be thrown overboard exposing them to serious injury or death. ob00601 Self-locking nuts 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.

  • Page 15: Protecting People In The Water

    GENERAL INFORMATION 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.

  • Page 16: Passenger Safety Message - Pontoon Boats And Deck Boats

    GENERAL INFORMATION 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 boat.

  • Page 17: Impact With Underwater Hazards

    GENERAL INFORMATION ob00314 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 18: Safety Instructions For Hand Tilled Outboards

    GENERAL INFORMATION • 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.

  • Page 19: Selecting Accessories For Your Outboard

    Running the boat with the trim angle of the bow too high. 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. WARNING Check with your dealer before installation of accessories.

  • Page 20: Safe Boating Suggestions

    GENERAL INFORMATION 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.

  • Page 21: 25 4-Stroke Specifications - International

    20XX XXXX ob00602 Serial number Year manufactured Model year Certified Europe Insignia (as applicable) Model designation 25 4-Stroke Specifications - International Models Horsepower Kilowatts Full Throttle RPM Range 5500-6000 RPM Idle Speed in Forward Gear 775 ± 25 RPM Number of Cylinders Piston Displacement 498 cc (30.4 cu.

  • Page 22: Component Identification

    GENERAL INFORMATION Models Engine Oil Capacity 3.0 liter (3 quarts) 465 Marine Cranking Amps (MCA) or 350 Cold Cranking Battery Rating Amps (CCA) Sound at Drivers Ear (ICOMIA 39-94) 4-Stroke 81.6 dBA 4-Stroke with tiller 82.7 dBA Component Identification ob00603 Auxiliary tilt switch (power trim models) Bottom cowl Transom brackets...

  • Page 23: Installation

    The outboard must be secured to the transom one of two ways: EITHER with clamp screws and the two mounting bolts and locknuts provided, OR with clamp screws and optional Quicksilver or Mercury Precision Parts Outboard Mounting Kit. Tighten retainer screws into the lower mounting holes when using outboard mounting kit.

  • Page 24: Propeller Selection

    INSTALLATION ob00605 Clamp screws Outboard Mounting Kit (part number 812432A5) Mounting bolt and locknut (2) Retainer screws Propeller Selection For best all around performance from your outboard/boat combination, select a propeller that allows the engine to operate in the upper half of the recommended full throttle RPM range with the boat normally loaded (refer to General Information - Specifications).

  • Page 25: Transporting

    TRANSPORTING Trailering Boat/Outboard - Tiller Handle Models and Remote Control Models With Power Trim Trailer your boat with the outboard tilted down in a vertical operating position. If additional ground clearance is required, the outboard should be tilted up using an accessory outboard support device.

  • Page 26: Transporting Portable Fuel Tanks

    TRANSPORTING IMPORTANT: The tilt lock lever should be used to lock the outboard down when trailering. This will prevent the outboard from bouncing and causing possible damage to the outboard. Shift the outboard to forward gear. This prevents the propeller from spinning freely. Transporting Portable Fuel Tanks WARNING Avoid serious injury or death from a gasoline fire or explosion.

  • Page 27: Fuel & Oil

    (Ethanol) or Ether (MTBE or ETBE). If Ethanol is the oxygenates that is used in the gasoline, refer to Alcohol in Gasoline. These reformulated fuels are acceptable for use in the Mercury engine. ALCOHOL IN GASOLINE We do not recommend the use of gasoline which contains alcohol because of the possible adverse effect the alcohol may have on the fuel system.

  • Page 28: Engine Oil Recommendations

    FUEL & 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.
  • Page 29 FUEL & OIL Push the dipstick back in all the way, then flip the handle down to lock the dipstick in place. Reinstall the oil filler cap and hand tighten securely. ob00607 ob01456 Dipstick Oil filler cap...

  • Page 30: Features & Controls

    FEATURES & CONTROLS Remote Control Features Your boat may be equipped with one of the Mercury Precision or Quicksilver remote controls shown. If not, consult your dealer for a description of the functions and operations of the remote control. ob00329 Control handle - forward, neutral, reverse.
  • Page 31 FEATURES & CONTROLS ob00330 Horn inside remote control Horn in ignition key panel Horn inside key switch Horn below tiller handle WARNING SYSTEM OPERATION The warning horn will emit either a continuous beep or intermittent short beeps and engine speed will be limited to 2000 RPM.

  • Page 32: Manual Gas Assisted Tilt System - Tiller Handle Models

    FEATURES & CONTROLS LOW OIL PRESSURE The warning system will be activated 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 continues to sound, consult your dealer.
  • Page 33 FEATURES & CONTROLS ob00610 Push in the tilt support pin. Lower outboard to rest on the tilt support pin. LOWERING OUTBOARD TO RUN POSITION Raise the outboard off the support pin to disengage tilt support. Pull out the support pin and lower the outboard.

  • Page 34: Manual Tilt System - Remote Control Models Without Power Trim

    FEATURES & CONTROLS ob00613 Too much angle (bow up) - adjust in. Angle adjusted properly (bow slightly up). Not enough angle (bow down) - adjust out. NOTE: The outboard should be locked against the tilt stops or tilt pin during operation by setting the tilt lock lever to the lock/run position.

  • Page 35: Tilting Outboard To Full Up Position

    FEATURES & CONTROLS ob00614 Release position Lock position Release Position - Placing the tilt lock lever up in the release position will allow you to tilt up the outboard. Lock Position - Place the tilt lock lever down in the lock position whenever operating the outboard. NOTE: With the tilt lock lever in the lock position, the outboard still will kick up if an underwater obstruction is hit.

  • Page 36: Shallow Water Operation

    FEATURES & CONTROLS SHALLOW WATER OPERATION The shallow water drive feature on the outboard allows you to position the outboard at a higher tilt angle to prevent hitting bottom. IMPORTANT: While in shallow water, operate the outboard at slow speed and keep the cooling water intake submerged.

  • Page 37: Power Trim And Tilt (If Equipped)

    FEATURES & CONTROLS ob00613 Too much angle (stern down - bow up) Not enough angle (stern up - bow down) 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: •...

  • Page 38: Power Trim Operation

    FEATURES & CONTROLS ob00617 Remote control trim switch Tilt range of travel Panel mount trim switch Trim range of travel POWER TRIM OPERATION With most boats, operating around the middle of the trim range will give satisfactory results. However, to take full advantage of the trimming capability there may be times when you choose to trim your outboard all the way in or out.

  • Page 39: Auxiliary Tilt Switch

    FEATURES & CONTROLS • In rare circumstances, the owner may decide to limit the trim in. This can be accomplished by repositioning the tilt stop pin into whatever adjustment hole in the transom bracket is desired. Trimming Out or Up can: •...

  • Page 40: Throttle Grip Friction Adjustment - Tiller Handle Models

    FEATURES & CONTROLS ob00620 SHALLOW WATER OPERATION When operating your boat in shallow water, you can tilt the outboard beyond the maximum trim range to prevent hitting bottom. Reduce engine speed below 2000 RPM. Tilt outboard up. Make sure all the water intake holes stay submerged at all times. Operate the engine at slow speed only.

  • Page 41: Trim Tab Adjustment

    FEATURES & CONTROLS ob00622 Tighten friction Locknut Loosen friction REMOTE STEERING MODELS WARNING Avoid possible serious injury or death from loss of boat control. Maintain sufficient steering friction to prevent the outboard from steering into a full turn if the tiller handle or steering wheel is released. Steering Friction Adjustment - Adjust this screw to achieve the desired steering friction (drag) on the steering wheel.
  • Page 42 FEATURES & CONTROLS NOTE: Trim tab adjustment will have little effect reducing steering torque if the outboard is installed with the anti-ventilation plate approximately 50 mm (2 in.) or more above the boat bottom. MODELS WITHOUT POWER TRIM Operate your boat at normal cruising speed trimmed to desired position by installing the tilt pin in the desired tilt pin hole.

  • Page 43: Operation

    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.

  • Page 44: Engine Break-In Procedure

    OPERATION ob00624 CAUTION Never start or operate your outboard (even momentarily) without water circulating through all the cooling water intake holes in the gearcase to prevent damage to the water pump (running dry) or overheating of the engine. Make sure the cooling water intake is submerged. ob00347 Engine Break-in Procedure CAUTION...
  • Page 45 OPERATION ob00348 Squeeze the fuel line primer bulb several times until it feels firm. ob00349 IMPORTANT: To prevent engine flooding, do not squeeze the primer bulb after engine has warmed up. Set the lanyard stop switch to RUN position. Refer to General Information - Lanyard Stop Switch. ob00350 Shift outboard to neutral (N) position.

  • Page 46: Starting The Engine - Tiller Handle Models

    OPERATION NOTE: Cold Engine - air temperature is below 4° C (40° F) - After starting the engine, slowly advance the neutral fast idle speed feature to increase idle speed until engine is warmed up. • Starting Flooded Engine - Advance the neutral fast idle speed feature to the maximum fast idle speed position and continue to crank the engine for starting.
  • Page 47 OPERATION CAUTION Never start or operate your outboard (even momentarily) without water circulating through all the cooling water intake holes in the gearcase to prevent damage to the water pump (running dry) or overheating of the engine. Open fuel tank vent screw (in filler cap) on manual venting type fuel tanks. ob00348 Squeeze the fuel line primer bulb several times until it feels firm.

  • Page 48: Warming Up Engine

    OPERATION NOTE: Cold Engine - air temperature is below 4° C (40° F) - After starting the engine, slowly advance throttle speed until engine is warmed up. 0%100 0%100 START START START ob00356 Start position Half-way position Manual Starting Models - Pull the starter rope slowly until you feel the starter engage, then pull rapidly to crank the engine.

  • Page 49: Gear Shifting

    OPERATION Gear Shifting IMPORTANT: Observe the following: • Never shift outboard into gear unless engine speed is at idle. • Do not shift outboard into reverse when the engine is not running. • Your outboard has three gear shift positions to provide operation: Forward (F), Neutral (out of gear), and Reverse (R).

  • Page 50: Emergency Starting

    OPERATION ob00361 Emergency Starting If the starter system fails, use the spare starter rope (provided) and follow procedure. Remove flywheel cover or manual starter assembly. ob00362 Shift outboard to neutral (N) position. ob00363 WARNING When using emergency starter rope to start engine, the start in gear protection device is inoperative. Make sure to set the outboard gear shift into neutral to prevent outboard from starting in gear.
  • Page 51 OPERATION WARNING To prevent getting an electrical shock, do not touch any ignition component, wiring, or spark plug wire when starting or running 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.

  • Page 52: Maintenance

    SELECTING REPLACEMENT PARTS FOR YOUR OUTBOARD We recommend using original Mercury Precision or Quicksilver replacement parts and Genuine Lubricants. WARNING Using a replacement part that is inferior to the original part could result in personal injury, death, or product failure.

  • Page 53: Inspection And Maintenance Schedule

    MAINTENANCE The owner/operator is not to modify the engine in any manner that would alter the horsepower or allow emissions levels to exceed their predetermined factory specifications. Inspection And Maintenance Schedule BEFORE EACH USE • Check engine oil level. See Fuel & Oil - Checking and Adding Engine Oil. •...

  • Page 54: Top Cowl Removal And Installation

    MAINTENANCE IMPORTANT: The engine must be run during flushing in order to open the thermostat and circulate water through the water passages. WARNING To avoid possible injury when flushing, remove the propeller. Refer to Propeller Replacement, following. Place the outboard in either the operating position (vertical) or in a tilted position. Remove propeller.

  • Page 55: Exterior Care

    MAINTENANCE Exterior Care Your outboard is protected with a durable baked enamel finish. Clean and wax often using marine cleaners and waxes. Battery Inspection The battery should be inspected at periodic intervals to ensure proper engine starting capability. IMPORTANT: Read the safety and maintenance instructions which accompany your battery. Turn off the engine before servicing the battery.

  • Page 56: Steering Link Rod Fasteners

    MAINTENANCE Steering Link Rod Fasteners IMPORTANT: The steering link rod that connects the steering cable to the engine must be fastened using special washer head bolt ("e" - Part Number 10-856680) and self-locking nylon insert locknuts ("b" & "d" - Part Number 11-826709113).

  • Page 57: Propeller Replacement

    MAINTENANCE Two anodes are installed in the engine block. Remove anodes at locations shown. Install each anode with rubber seal and cover. Tighten bolts to 8 Nm (70 lb. in.) torque. ob00632 Cover Anodes Rubber seal The third anode is the trim tab. Models which have the longer type of transom brackets will have a forth anode installed.
  • Page 58 Pull propeller straight off shaft. If propeller is seized to the shaft and cannot be removed, have the propeller removed by an authorized dealer. ob00377 Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants Anti-Corrosion Grease or 2-4-C with Teflon. ob00378...

  • Page 59: Spark Plug Inspection And Replacement

    MAINTENANCE IMPORTANT: To prevent the propeller hub from corroding and seizing to the propeller shaft (especially in salt water), always apply a coat of the recommended lubricant to the entire propeller shaft at the recommended maintenance intervals, and also each time the propeller is removed. Flo-Torque I Drive Hub Propellers - Install forward thrust hub, propeller, propeller nut retainer and propeller nut onto the shaft.

  • Page 60: Fuse Replacement - Electric Start Models

    MAINTENANCE ob00375 Remove the spark plugs to inspect. Replace spark plug if electrode is worn or the insulator is rough, cracked, broken, blistered or fouled. ob00423 Set the spark plug gap to specifications. ob00680 Spark Plug Gap Spark plug 0.90 mm (0.035 in.) Before installing spark plugs, clean off any dirt on the spark plug seats.

  • Page 61: Timing Belt Inspection

    Signs of wear on edges or outer surfaces of belt. ob00634 Lubrication Points Lubricate the following with Quicksilver or Mercury Precision Lubricants Anti-Corrosion Grease or 2-4-C with Teflon. • Propeller Shaft - Refer to Propeller Replacement for removal and installation of the propeller. Coat the entire propeller shaft with lubricant to prevent the propeller hub from corroding and seizing to the shaft.
  • Page 62 MAINTENANCE Lubricate the following with Quicksilver or Mercury Precision Lubricants 2-4-C with Teflon or Special Lubricant 101. • Swivel Bracket - Lubricate through fitting. ob00635 • Tilt Tube - Lubricate through fittings. • Co-Pilot Shaft (Tiller Handle Models) - Lubricate through fitting. Move the steering friction lever back and forth while lubricating.

  • Page 63: Checking Power Trim Fluid

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

  • Page 64: Changing Engine Oil

    MAINTENANCE ob00641 Changing Engine Oil ENGINE OIL CAPACITY Engine oil capacity is approximately 3.0 liter (3 quarts). OIL CHANGING PROCEDURE Tilt the outboard up to the trailer position. Turn the steering on the outboard so that the drain hole is facing downward. Remove drain plug and drain engine oil into an appropriate container.

  • Page 65: Gearcase Lubrication

    Place a drain pan below outboard. Remove vent plug and fill/drain plug and drain lubricant. ob00439 Vent plug Fill/drain plug GEARCASE LUBRICANT CAPACITY Gearcase lubricant capacity is approximately 440 ml (14.9 fl. oz.). GEARCASE LUBRICANT RECOMMENDATION Mercury or Quicksilver Premium or High Performance Gear Lubricant.

  • Page 66: Submerged Outboard

    MAINTENANCE CHECKING LUBRICANT LEVEL AND REFILLING GEARCASE Place outboard in a vertical operating position. Remove vent plug. ob00440 Vent hole Fill/drain plug Vent plug Place lubricant tube into the fill hole and add lubricant until it appears at the vent hole. IMPORTANT: Replace sealing washers if damaged.

  • Page 67: Storage

    Lubricate all outboard components listed in Maintenance - Inspection and Maintenance Schedule. • Touch up any paint nicks. See your dealer for touch-up paint. • Spray Quicksilver or Mercury Precision Lubricants Corrosion Guard on external metal surfaces (except corrosion control anodes). Protecting Internal Engine Components •...
  • Page 68 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.

  • Page 69: Troubleshooting

    TROUBLESHOOTING Starter Motor Will Not Crank The Engine (Electric Start Models) POSSIBLE CAUSES • 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. •...

  • Page 70: Performance Loss

    TROUBLESHOOTING Performance Loss POSSIBLE CAUSES • Low oil pressure. Check oil level. • Throttle not fully open. • Damaged or improper size propeller. • Incorrect engine timing, adjustments, or setup. • Boat overloaded or load improperly distributed. • Excessive water in bilge. •...

  • Page 71: Owner Service Assistance

    Your satisfaction with your outboard product is very important to your dealer and to us. If you ever have a problem, question or concern about your outboard product, contact your dealer or any authorized Mercury Marine dealership. If additional assistance is required, take these steps.
  • Page 72 Telephone (954) 744-3513 Mercury Marine 11650 Interchange Circle North Miramar, FL 33025 (954) 744-3535 U.S.A. Japan Telephone 81-053-423-2500 Mercury Marine - Japan Anshin-cho 283-1 Hamamatsu 81-053-423-2510 Shizuoka-ken, Japan 435-0005 Japan Asia, Singapore Telephone 5466160 Mercury Marine Singapore 72 Loyang Way...

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