Mercury 225 User Manual
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Mercury 225 User Manual

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See also: Service Manual , Owner's 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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  • 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 and Controls Remote Control Features............................. 25 Warning System..............................25 Power Trim and Tilt.............................. 26 Trim Tab Adjustment............................29 Operation Pre-Starting Check List............................30 Operating In Freezing Temperatures........................30 Operating In Salt Water Or Polluted Water......................30 Engine Break-in Procedure..........................
  • Page 4 Engine Will Not Start............................56 Engine Runs Erratically............................56 Performance Loss..............................56 Battery Will Not Hold Charge..........................57 Owner Service Assistance Local Repair Service............................58 Service Away From Home............................ 58 Parts And Accessories Inquiries........................... 58 Service Assistance............................... 58 Mercury Marine Service Offices........................... 58...

  • 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. ob01005 Self-locking nut (2) 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: Exhaust Emissions

    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

    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.

  • Page 20: Recording Serial Number

    It is important to record this number for future reference. The serial number is located on the outboard as shown. rial Numb XXXXXXXX XXXX XXXX ob01006 Serial number Year manufactured Model year Certified Europe Insignia (as applicable) Model designation 200/225 4- Stroke Specifications - International Models Horsepower...
  • Page 21 GENERAL INFORMATION Models Kilowatts Full Throttle RPM range 5000-6000 Idle RPM in Neutral Engine Warm 650-750 Number of Cylinders Piston Displacement 3,352 cc (204.54 cu. in.) Cylinder Bore 94.0 mm (3.70 in) Stroke 80.5 mm (3.17 in.) Valve Clearance (cold) Intake Valve 0.17 - 0.23 mm (0.007 - 0.009 in.) Exhaust Valve...

  • Page 22: Component Identification

    GENERAL INFORMATION Component Identification ob01007 Top cowl Water pump indicator hole Bottom cowl Auxiliary tilt switch Engine flush Transom brackets Driveshaft housing Gearcase Anti-ventilation plate Cooling water intake holes Trim tab...

  • Page 23: Installation

    INSTALLATION Installing Outboard WARNING Before operation, the outboard must be correctly installed with the required mounting hardware as shown. Failure to correctly fasten outboard could result in outboard ejecting off boat transom causing serious injury, death, or property damage. We strongly recommend that your dealer install your outboard and related accessories to ensure proper installation and good performance.

  • Page 24: Propeller Selection

    INSTALLATION 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 Trailer your boat with the outboard tilted down in a vertical operating position. If additional ground clearance is required, the outboard should be tilted up using an accessory outboard support device. Refer to your local dealer for recommendations. Additional clearance may be required for railroad crossings, driveways and trailer bouncing.

  • Page 26: Fuel And 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 27: Engine Oil Recommendations

    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.
  • Page 28 FUEL AND OIL Push the dipstick back in all the way. Reinstall the oil fill cap hand tight. ob01011 Full mark Dipstick Add mark Oil filler cap...

  • Page 29: Features And Controls

    FEATURES AND 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 30: Power Trim And Tilt

    FEATURES AND CONTROLS WARNING SYSTEM ACTIVATED If the warning system is activated, immediately reduce engine speed to idle. Shift outboard into neutral and visually check for a steady flow of water discharging from the water pump indicator hole. If no water is flowing out, the water pump is not working and the engine is overheating.

  • Page 31: Power Trim Operation

    FEATURES AND CONTROLS ob01012 Trim switch Trim range of travel Tilt range of travel POWER TRIM OPERATION With most boats, operating around the middle of the trim range will give satisfactory results. Trimming your outboard all the way in or out may improve performance, but cause some potential control hazards. WARNING Avoid possible serious injury or death.

  • Page 32: Auxiliary Tilt Switch

    FEATURES AND CONTROLS • Increase steering torque or pull to the left at a normal installation height (with the normal right hand rotation propeller). • In excess can cause boat porpoising (bouncing) or propeller ventilation. • Cause engine overheating if any cooling water intake holes are above the water line. TILTING OPERATION To tilt outboard, shut off the engine and press the trim/tilt switch or auxiliary tilt switch to the up position.

  • Page 33: Trim Tab Adjustment

    FEATURES AND CONTROLS ob01015 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 34: 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 35 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. Make sure the cooling water intake is submerged. ob01017 Check the engine oil level.

  • Page 36: Warming Up Engine

    OPERATION Shift outboard to neutral (N) position. ob00351 Do not advance the neutral fast idle speed feature on the remote control. The enrichener system will automatically increase engine speed for starting and warm-up. ob00560 NOTE: Allow the ignition key to return to the "ON" position after engine starts. Turn ignition key to the "START"...

  • Page 37: 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 (N) and Reverse (R). •...

  • Page 38: 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 39: 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 40: Flushing The Cooling System

    MAINTENANCE EVERY 1000 HOURS OR FIVE YEARS • Replace accessory drive belt. BEFORE PERIODS OF STORAGE • Refer to Storage procedure. See Storage section. 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.

  • Page 41: Cleaning Care For Top Cowl

    MAINTENANCE ob01021 Lift off the top cowl. INSTALLATION Lower top cowl into position over engine. Make sure it fits properly in the rubber seal. Lock cowl by moving the cowl lock latches downward. Cleaning Care for Top Cowl IMPORTANT: Dry wiping (wiping the plastic surface when it is dry) will result in minor surface scratches. Always wet the surface before cleaning.

  • Page 42: Cleaning Fuel Filter

    MAINTENANCE CLEANING FUEL FILTER Read Fuel System servicing information and warning preceeding. Remove the two bolts that secure the fuel filter bracket in place. ob01022 Remove bolt and ring nut lock. Remove fuel filter from the bracket. Disassemble fuel filter as shown.

  • Page 43: Steering Link Rod Fasteners

    MAINTENANCE ob01023 Spring Cover Sight bowl O-ring Ring nut Filter element Ring nut lock O-ring Bracket Pull out the filter element. Wash it with cleaning solvent and allow it to dry. Push the filter element into the cover. Place the O-ring seal into its proper position on the sight bowl and reinstall sight bowl with ring nut. Tighten ring nut securely.

  • Page 44: Corrosion Control Anode

    MAINTENANCE ob01024 Flat washer Nylon insert locknut (11-826709113) Nylon insert locknut (11-826710-13) Special washer head bolt (10-856680) Rear threaded hole Assemble steering link rod to steering cable with two flat washers and self-locking nylon insert locknut. Tighten locknut until it seats, then back nut off 1/4 turn. Assemble steering link rod to rear hole on steering arm with special washer head bolt, flat washer and nylon insert locknut.
  • Page 45 MAINTENANCE ob01025 Trim tab anode Transom bracket anode Four anodes are installed in the engine. Remove anodes at locations shown. Install each anode with rubber seal and cover. Torque the anode bolt, than cover retaining bolts to specifications. ob01026 Anode bolt Anode Cover retaining bolt Rubber seal...

  • Page 46: Propeller Replacement

    MAINTENANCE Propeller Replacement WARNING If the propeller shaft is rotated while the engine is in gear, there is the possibility that the engine will crank over and start. To prevent this type of accidental engine starting and possible serious injury caused from being struck by a rotating propeller, always shift outboard to neutral position and remove spark plug leads when you are servicing the propeller.
  • Page 47 Replaceable drive sleeve Washer Forward thrust hub Thrust hub Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants Anti-Corrosion Grease or 2-4-C with Teflon. ob00378 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.

  • Page 48: Spark Plug Inspection And Replacement

    MAINTENANCE ob01030 Description lb. in. lb. ft. Propeller nut NOTE: If the propeller nut does not align with the propeller shaft after tightening to the specified torque, then tighten the nut further to align it with the hole. Align the propeller nut with the propeller shaft hole. Insert a new cotter pin in the hole and bend the cotter pin ends.

  • Page 49: Fuse Replacement

    MAINTENANCE ob00680 Spark Plug Gap Spark Plug 1.1 mm (0.043 in.) 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 lb. in. lb.

  • Page 50: Timing Belt Inspection

    MAINTENANCE ob01031 Spare fuses Main switch/trim switch - 20 amp fuse Main fuse 2 - 30 amp fuse Engine control unit/fuel injection pump - 20 amp fuse Main fuse 1 - 30 amp fuse Fuse puller Starter relay - 30 amp fuse Good fuse Fuel pump - 5 amp fuse Blown fuse...

  • Page 51: Battery Inspection

    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. ob00378 Lubricate the following with Quicksilver or Mercury Precision Lubricants 2-4-C with Teflon or Special Lubricant 101. •...
  • Page 52 MAINTENANCE ob01034 Swivel bracket Tilt support lever • Tilt Tube - Lubricate through fitting. ob01035 • Cowl Lock Latches. ob01036 • Shift Shaft - Lubricate through fitting. ob01037...

  • Page 53: 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 54: Changing Engine Oil

    MAINTENANCE ob01040 Changing Engine Oil ENGINE OIL CAPACITY Without oil filter replacement: 5.8 liters (6.1 quarts). With oil filter replacement: 6.0 liters (6.3 quarts). OIL CHANGING PROCEDURE Pump Method Place the outboard in a vertical position. Remove dipstick and slide adaptor tube/pump down dipstick tube. Pump out the engine oil into an appropriate container.
  • Page 55 MAINTENANCE ob01042 Side cover Drain Plug CHANGING OIL FILTER Remove the oil filter cover. Place a rag or towel below the oil filter to absorb any spilled oil. Unscrew old filter by turning the filter to the left. ob01043 Clean the mounting base. Apply film of clean oil to filter gasket. Do not use grease. Screw new filter on until gasket contacts base, then tighten 3/4 to 1 turn.

  • Page 56: Gearcase Lubrication

    MAINTENANCE ob01044 Gearcase Lubrication When adding or changing gearcase lubricant, visually check for the presence of water in the lubricant. If water is present, it may have settled to the bottom and will drain out prior to the lubricant, or it may be mixed with the lubricant, giving it a milky colored appearance.

  • Page 57: Submerged Outboard

    MAINTENANCE ob01046 Vent hole Drain plug Vent plug IMPORTANT: Replace sealing washers if damaged. Stop adding lubricant. Install the vent plug and sealing washer before removing the lubricant tube. Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer. Submerged Outboard A submerged outboard will require service within a few hours by an authorized dealer once the outboard is recovered from the water.

  • Page 58: Storage

    • 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 NOTE: Make sure the fuel system has been prepared for storage. Refer to Fuel System, preceeding.

  • Page 59: Battery Storage

    STORAGE Battery Storage • Follow the battery manufacturer's instructions for storage and recharging. • 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 60: Starter Motor Will Not Crank The Engine (Electric Start Models)

    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 61: Battery Will Not Hold Charge

    TROUBLESHOOTING • Incorrect engine timing, adjustments, or setup. • Boat overloaded or load improperly distributed. • Excessive water in bilge. • Boat bottom is dirty or damaged. Battery Will Not Hold Charge POSSIBLE CAUSES • Battery connections are loose or corroded. •...

  • Page 62: Local Repair Service

    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 63: Owner Service Assistance

    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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