Mercury 15 Service Manual Download

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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. Severe engine damage may result from use of an inferior oil.

+20

+40

+60

+80

F°

C°

+100

–7

+16

+27

–18

+38

ob00327

Recommended SAE Viscosity for Engine Oil

a -

SAE 25W-40 viscosity oil may be used at temperatures above 4 °C (40 °F)

b -

SAE 10W-30 viscosity oil is recommended for use in all temperatures.

Checking Engine Oil

IMPORTANT: Do not overfill. Be sure that the outboard is upright (not tilted) when checking oil.
1.

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

Remove dipstick. Wipe dipstick with a clean rag or towel and push it back in all the way.

Pull the dipstick out again and observe the oil level. Oil must be between full mark and add mark. If oil level

is low, remove oil filler cap and fill to (but not over) the full mark with the recommended oil.

IMPORTANT: Inspect oil for signs of contamination. Oil contaminated with water will have a milky color to it; oil

contaminated with fuel will have a strong fuel smell. If contaminated oil is noticed, have the engine checked by

your dealer.

Summary of Contents for 15

Page 1: ...ct 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...

Page 2: ...Models 9 Remote Steering Notice 9 Lanyard Stop Switch 10 Protecting People In The Water 11 Passenger Safety Message Pontoon Boats And Deck Boats 12 Wave And Wake Jumping 12 Impact With Underwater Hazards 13 Safety Instructions For Hand Tilled Outboards 14 Exhaust Emissions 14 Selecting Accessories For Your Outboard 15 Safe Boating Suggestions 16 Recording Serial Number 16 15 4 Stroke Specification...

Page 3: ...ol Models 36 Gear Shifting 38 Stopping The Engine 39 Emergency Starting 39 MAINTENANCE Outboard Care 43 EPA Emissions 43 Inspection And Maintenance Schedule 44 Flushing The Cooling System Standard Models 44 Flushing The Cooling System Bigfoot Models 45 Top Cowl Removal And Installation 46 Battery Inspection 47 Fuel System 47 Fuse Replacement Electric Start Models 48 Corrosion Control Anode 48 Stee...

Page 4: ...OTING Starter Motor Will Not Crank The Engine Electric Start Models 63 Engine Will Not Start 63 Engine Runs Erratically 63 Performance Loss 63 Battery Will Not Hold Charge 64 OWNER SERVICE ASSISTANCE Local Repair Service 65 Service Away From Home 65 Parts And Accessories Inquiries 65 Service Assistance 65 Mercury Marine Service Offices 65 ...

Page 5: ...d 2 To be eligible for warranty coverage the product must be registered with Mercury Marine At the time of sale the dealer should complete the warranty registration and immediately submit it to Mercury Marine via MercNET E mail or mail Upon receipt of this warranty registration Mercury Marine will record the registration 3 Upon processing the warranty registration Mercury Marine will send registra...

Page 6: ...ustomer upon proper re registration of the product CONDITIONS THAT MUST BE MET IN ORDER TO OBTAIN WARRANTY COVERAGE Warranty coverage is availble only to retail customers that purchase from a Dealer authorized by Mercury Marine to distribute the product in the country in which the sale occurred and then only after the Mercury Marine specified pre delivery inspection process is completed and docume...

Page 7: ... regarding events and circumstances covered by this warranty and those that are not see the Warranty Coverage section of the Operation and Maintenance Manual incorporated by reference into this warranty DISCLAIMERS AND LIMITATIONS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY DISCLAIMED TO THE EXTENT THAT THEY CANNOT BE DISCLAIMED THE IMPLIED WARRANTI...

Page 8: ...unless requested by Mercury ship the product or parts of the product directly to Mercury The warranty registration card is the only valid registration identificationand must be presented to the dealer at the time warranty service is requested in order to obtain coverage WHAT IS NOT COVERED This limited warranty does not cover routine maintenance items tune ups adjustments normal wear and tear dama...

Page 9: ...rformed including without limitation the replacement of sacrificial anodes use of specified lubricants and touch up of nicks and scratches in order to maintain warranty coverage Mercury Marine reserves the right to make warranty coverage contingent upon proof of proper maintenance WHAT MERCURY WILL DO Mercury s sole and exclusive obligation under this warranty is limited to at our option repairing...

Page 10: ...ATE TO STATE AND COUNTRY TO COUNTRY 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 Agains...

Page 11: ...r operating with a racing type lower unit 11 Engine noise does not necessarily indicate a serious engine problem If diagnosis indicates a serious internal engine condition which could result in a failure condition responsible for noise should be corrected under the warranty 12 Lower unit and or propeller damage caused by striking a submerged object is considered a marine hazard 13 Water entering e...

Page 12: ...structions that should be followed DANGER DANGER indicates an imminently hazardous situation that if not avoided will result in death or serious injury WARNING WARNING indicates a potentially hazardous situation that if not avoided could result in death or serious injury CAUTION CAUTION indicates a potentially hazardous situation that if not avoided may result in minor or moderate injury or proper...

Page 13: ...0 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 This prevents the engine from starting when the shift is actuated in any position other than neutral WARNING Avoid serious injury or death from a sudden unexpected acceleration when starting your engi...

Page 14: ...operator s wrist or leg or tie a knot in the lanyard ob00310 a b a Lanyard cord b Lanyard stop switch Read the following Safety Information before proceeding 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 ...

Page 15: ...ar concern for passengers in the front of the boat who could be ejected over the bow and possibly struck by the gearcase or propeller Loss of power and directional control in heavy seas strong current or high winds Loss of control when docking Protecting People In The Water WHILE YOU ARE CRUISING It is very difficult for a person standing or floating in the water to take quick action to avoid a bo...

Page 16: ... or persons dangling their feet over the front edge could get their legs caught by a wave and pulled into the water ob00312 WARNING Avoid serious injury or death from falling over the front end of a pontoon or deck boat and being run over by the outboard Stay back from the front end of the deck and remain seated while the boat is in motion BOATS WITH FRONT MOUNTED RAISED PEDESTAL FISHING SEATS Ele...

Page 17: ...boat may also steer sharply to one side Impact With Underwater Hazards Reduce speed and proceed with caution whenever you drive a boat in shallow water areas or in areas where you suspect underwater obstacles may exist which could be struck by the outboard or the boat bottom The most important thing you can do to help reduce injury or impact damage from striking a floating or underwater object is ...

Page 18: ...uld seriously injure anyone occupying this area 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 insta...

Page 19: ...monoxide WHILE BOAT IS STATIONARY ob00317 a b a Running the engine when the boat is moored in a confined space b Mooring close to another boat that has its engine running WHILE BOAT IS MOVING ob00318 a b 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 Accessor...

Page 20: ...uence of alcohol or drugs while boating it is the law Alcohol or drug use impairs your judgment and greatly reduces your ability to react quickly Prepare other boat operators Instruct at least one other person on board in the basics of starting and operating the outboard and boat handling in case the driver becomes disabled or falls overboard Passenger boarding Stop the engine whenever passengers ...

Page 21: ...of Cylinders 2 Full Throttle RPM Range 4500 5500 RPM Idle Speed in Forward Gear 800 900 RPM Piston Displacement 323cc 19 7 cu in Cylinder Bore 59 mm 2 32 in Piston Stroke 59 mm 2 32 in Valve Clearance Cold Intake Valve 0 15 0 25 mm 0 006 0 010 in Exhaust Valve 0 20 0 30 mm 0 008 0 012 in Recommended Spark Plug NGK DPR6EA 9 Spark Plug Gap 0 9 mm 0 035 in Gear Ratio Standard Models 2 0 1 Bigfoot Mod...

Page 22: ...pacity Standard Models 200 ml 6 8 fl oz Bigfoot Models 260 ml 8 8 fl oz Engine Oil Capacity 1 Liter 1 quart Battery Rating 465 Marine Cranking Amps MCA or 350 Cold Cranking Amps CCA Sound at Drivers Ear ICOMIA 39 94 4 Stroke 82 1 4 Stroke with tiller 82 7 ...

Page 23: ...ottom should be aligned or be within 25 mm 1 in above the anti ventilation plate of the outboard ob00502 a a Anti ventilation plate INSTALLING OUTBOARD ON TRANSOM 1 Place outboard on center line of transom ob00446 2 Tighten transom clamp screws ob00503 3 To prevent loss of outboard overboard fasten outboard by drilling two 7 9 mm 5 16 in holes through the transom using transom clamp holes as a tem...

Page 24: ...ning Even if started manually as damage to the charging system could result Battery Connections CONNECTING OUTBOARD BATTERY CABLES 1 First connect the red battery cable to the positive battery terminal and then connect the black battery cable to the negative battery terminal DISCONNECTING OUTBOARD BATTERY CABLES 1 First disconnect the black battery cable from the negative terminal and then disconn...

Page 25: ...ter is drained out 2 To prevent problems which can be caused by oil entering the cylinders from the sump transport and store the outboard only in one of the three positions shown ob00507 a c b a Upright b Tiller side down c Back side up Transporting Portable Fuel Tanks WARNING Avoid serious injury or death from a gasoline fire or explosion Follow portable fuel tank transporting instructions Transp...

Page 26: ...llowing fuel or vapor to escape F ob00326 a b a Connector stem b Tether cap Carrying Your Outboard Your outboard has a carrying handle located in front and a rear hand grip in the bottom cowl ob00508 Trailering Your Boat Your boat should be trailered with the outboard tilted down in a vertical operating position IMPORTANT The tilt lock and shallow water drive feature tiller handle models on the ou...

Page 27: ...outboard support device Refer to your local dealer for recommendations Additional clearance may be required for railroad crossings driveways and trailer bouncing ob00509 Shift the outboard into forward gear This prevents the propeller from spinning freely and allows the outboard to tilt up if hit from the front ...

Page 28: ...r is recommended If gasoline containing alcohol is used or if you suspect the presence of alcohol in your gasoline increase your inspection of the fuel system visually checking for fuel leaks or abnormalities Gasoline containing alcohol may cause the following problems to your outboard and fuel system Corrosion of metal parts Deterioration of elastomers and plastic parts Wear and damage of interna...

Page 29: ... 40 viscosity oil may be used at temperatures above 4 C 40 F b SAE 10W 30 viscosity oil is recommended for use in all temperatures Checking Engine Oil IMPORTANT Do not overfill Be sure that the outboard is upright not tilted when checking oil 1 Turn the engine off Have the outboard in a level operating position Remove the top cowl 2 Remove dipstick Wipe dipstick with a clean rag or towel and push ...

Page 30: ...FUEL OIL 26 4 Reinstall the oil filler cap and tighten securely ob00510 a b c a Full mark b Add mark c Oil filller cap ...

Page 31: ... 100 for convenient handling during transportation and storage ob00511 Starter Rope Pulling the starter rope cranks the engine over for starting ob00512 Lanyard Stop Switch Refer to General Information Lanyard Stop Switch ob00350 Engine Stop Switch Push in to stop engine ob00361 Throttle Grip Friction Knob Turn friction knob to set and maintain the throttle at desired speed Turn knob clockwise to ...

Page 32: ...ngine speed ob00543 Choke Pull out when starting a cold engine ob00544 Electric Start Button Electric Start Models Press button to start engine ob00545 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 ...

Page 33: ... e b g f a Control Handle forward neutral reverse b Neutral release lever c Lanyard stop switch Refer to General Information Lanyard Stop Switch d Lanyard General Information Lanyard Stop Switch e Throttle friction adjustment Console controls require cover removal for adjustment f Ignition key switch off on start g Fast idle lever Refer to Operation Starting the Engine h Throttle only button Refer...

Page 34: ... TILTING OUTBOARD TO FULL UP POSITION 1 Stop the engine Shift the outboard into forward gear position 2 Take hold of the top cowl grip and raise outboard to the full up position ob00548 3 Move the tilt lock to the lock position ob00549 LOWERING OUTBOARD DOWN TO RUN POSITION 1 Lift outboard and release tilt lock lever Lower outboard ob00550 Shallow Water Operation Tiller Handle Models Tiller handle...

Page 35: ...the outboard to disengage the shallow water drive lock and lower it down ob00552 a a Shallow water drive lever Setting The Operating Angle Of Your Outboard The vertical operating angle of your outboard is adjusted by changing the position of the tilt pin in the five adjustment holes provided The outboard should be locked against this tilt pin by setting the tilt lock lever to the lock run position...

Page 36: ...g torque or pull to the right with the normal right hand rotation propeller In excess can lower the bow of some boats to a point where they begin to plow with their bow in the water while on plane This can result in an unexpected turn in either direction called bow steering or over steering if any turn is attempted or if a significant wave is encountered Adjusting the outboard away from the boat t...

Page 37: ...ved and drained completely of water If ice should form at the water level inside the outboard driveshaft housing it will block water flow to the engine causing possible damage Operating In Salt Water Or Polluted Water We recommend that you flush the internal water passages of your outboard with fresh water after each use in salt or polluted water This will prevent a buildup of deposits from cloggi...

Page 38: ...p to 2000 RPM or at approximately half throttle 2 For the second hour of operation run the engine at varied throttle settings up to 3000 RPM or at three quarter throttle and at full throttle for approximately one minute every ten minutes 3 For the next eight hours of operation avoid continuous operation at full throttle for more than five minutes at a time Starting The Engine Tiller Handle Models ...

Page 39: ...rimer bulb after engine has warmed up 3 Set the lanyard stop switch to RUN position Refer to General Information Lanyard Stop Switch ob00350 4 Set the gear shift to neutral N position R F N ob00542 5 Set the throttle grip to start position ob00558 6 Cold Engine Pull out the choke knob for starting Push in the choke knob after engine starts ob00544 ...

Page 40: ...ON HAZARD Before shifting your outboard from neutral into gear decrease engine speed to slow This will prevent a rapid acceleration that can cause people in the boat to be thrown from their seats or out of the boat causing injury or death 9 Check for a steady stream of water flowing out of the water pump indicator hole ob00559 IMPORTANT If no water is coming out of the water pump indicator hole st...

Page 41: ...0351 IMPORTANT Outboards with battery charging capabilities must not be operated with battery cables disconnected from the battery Damage to the charging system may result 5 Do not advance the neutral fast idle speed feature on the remote control for initial starting After the engine has started you can slowly advance the fast idle speed feature to increase idle speed until engine is warmed up Kee...

Page 42: ...ing water intake for obstruction No obstruction may indicate a water pump failure or blockage in the cooling system These conditions will cause the engine to overheat Have the outboard checked by your dealer Operating the engine while overheated will cause engine damage WARMING UP ENGINE Before beginning operation allow the engine to warm up at idling speed for 3 minutes Gear Shifting IMPORTANT Ob...

Page 43: ...rol lever or rotate the throttle grip tiller handle to increase speed Stopping The Engine 1 Remote Control Models Reduce engine speed and shift outboard to neutral position Turn ignition key to OFF position ob00360 2 Tiller Handle Models Reduce engine speed and shift outboard to neutral position Push in the engine stop button or turn ignition key to OFF position ob00361 Emergency Starting If the s...

Page 44: ...o prevent outboard from starting in gear Sudden unexpected acceleration could result in serious injury or death 2 Remove the two screws from front cover and rotate the front cover forward ob00562 a b a Screw 2 b Front cover 3 Remove three bolts from flywheel cover and then remove the flywheel cover a a b ob00563 a Bolts b Flywheel cover 4 Rewind Starter Models Disconnect and remove cable ...

Page 45: ... 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 Do not attempt to reinstall the flywheel cover or top cowl when engine is running 7 Place the starter rope knot into the flywheel notch and wind t...

Page 46: ...OPERATION 42 8 Pull the starter rope to start the engine ob00566 ...

Page 47: ...eceipts 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 EPA Emissions EMISSION CERTIFICATION LABEL An emission certification label showing emission levels and engine specif...

Page 48: ...ark plugs at first 100 hours or first year After that inspect spark plugs every 100 hours or once yearly Replace spark plugs as needed See Spark Plug Inspection and Replacement Inspect thermostat visually for corrosion and broken spring Make sure thermostat closes completely at room temperature 1 Check fuel line filter for contaminants See Fuel System Check corrosion control anodes Check more freq...

Page 49: ...ck for a steady stream of water flowing out of the water pump indicator hole Continue flushing the outboard for 3 to 5 minutes carefully monitoring water supply at all times 6 Stop the engine turn off the water and remove the flushing attachment Reinstall the propeller Flushing The Cooling System Bigfoot Models Flush the internal water passages of the outboard with fresh water after each use in sa...

Page 50: ...if necessary so excess water continues leaking out from around the rubber cups to ensure the engine is receiving an adequate supply of cooling water ob00571 5 Check for a steady stream of water flowing out of the water pump indicator hole Continue flushing the outboard for 3 to 5 minutes carefully monitoring water supply at all times 6 Stop the engine turn off the water and remove the flushing att...

Page 51: ...us injury or death from gasoline fire or explosion Carefully follow all fuel system service instructions Always stop the engine and do not smoke or allow open flames or sparks in the area while servicing any part of the fuel system Before servicing any part of the fuel system stop engine and disconnect the battery Drain the fuel system completely Use an approved container to collect and store fuel...

Page 52: ...lver colored band inside the fuse If band is broken replace the fuse Replace fuse with a new fuse with the same rating ob00575 a b a Good fuse b Blown fuse Corrosion Control Anode Your outboard has a corrosion control anode installed to the gearcase An anode helps protect the outboard against galvanic corrosion by sacrificing its metal to be slowly corroded instead of the outboard metals The anode...

Page 53: ... they will work loose and vibrate off freeing the link rod to disengage 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 ob00577 a b c d a Special washer head bolt 10 849838 b Nylon insert locknut 11 826709113 c Flat washer 2 d Nylon...

Page 54: ...he 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 1 Shift the outboard to neutral position N N ob00561 2 Remove the spark plug leads to prevent engine from starting ob00375 3 Plac...

Page 55: ...ater always apply a coat of the recommended lubricant to the entire propeller shaft at the recommended maintenance intervals and also each time the propeller is removed 6 Flo Torq I Drive Hub Propellers Install forward thrust hub propeller rear thrust hub and propeller nut onto the shaft ob00581 a b c d a Propeller nut b Rear thrust hub c Propeller d Forward thrust hub 7 Place a block of wood betw...

Page 56: ...ion and remove spark plug leads when you are servicing the propeller 1 Shift the outboard to neutral position N N ob00561 2 Remove the spark plug leads to prevent engine from starting ob00382 a b c d e f a Propeller nut b Propeller nut retainer c Thrust hub d Continuity washer e Propeller f Thrust washer 3 Place a block of wood between gearcase and propeller to hold propeller and remove propeller ...

Page 57: ...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 6 Flo Torq I Drive Hub Propellers Install forward thrust hub propeller and propeller nut onto the shaft ob00586 a b c a Propeller nut b Propeller c Forward thrust hub 7 Place a block of wood between gearcase and...

Page 58: ...lugs to inspect Replace spark plug if electrode is worn or the insulator is rough cracked broken blistered or fouled ob00423 3 Set the spark plug gap to specifications ob00680 Spark Plug Gap Spark plug 0 90 mm 0 035 in 4 Before installing spark plugs clean off any dirt on the spark plug seats Install plugs finger tight and then tighten to the specified value Description Nm lb in lb ft Spark plug 2...

Page 59: ...Remove drain plug and drain engine oil into an appropriate container 4 After the initial oil has been drained Temporarily reinstall the drain plug Disengage the tilt lock and lower the outboard Wait a minute to allow the remaining oil that was trapped in the engine to return to the drain Return outboard to the full tilt position and drain the remaining oil 5 Lubricate the seal on the drain plug wi...

Page 60: ...ngine and check oil level on dipstick Add oil if necessary Lubrication Points 1 Lubricate the following with Quicksilver or Mercury Precision Lubricants 2 4 C with Teflon or Special Lubricant 101 Steering friction adjustment shaft tiller handle models Lubricate fitting Swivel bracket Lubricate through fitting Transom clamp screws Lubricate threads ob00592 a b c a Steering friction adjustment shaft...

Page 61: ... cable grease fitting b Steering cable end WARNING The end of the steering cable must be fully retracted into the outboard tilt tube before adding lubricant Adding lubricant to steering cable when fully extended could cause steering cable to become hydraulically locked A hydraulically locked steering cable will cause loss of steering control possibly resulting in serious injury or death 2 Lubricat...

Page 62: ...m and will drain out prior to the lubricant or it may be mixed with the lubricant giving it a milky colored appearance If water is noticed have the gearcase checked by your dealer Water in the lubricant may result in premature bearing failure or in freezing temperatures will turn to ice and damage the gearcase Remove the fill drain plug and examine the magnetic end for metal particles A small amou...

Page 63: ...1 Place outboard in a vertical operating position 2 Remove vent plug and fill drain plug 3 Remove fill screw and place lubricant tube into the fill hole 4 Add lubricant until it appears at the vent hole ob00598 IMPORTANT Replace sealing washers if damaged 5 Stop adding lubricant Install the vent plug and sealing washer before removing the lubricant tube ob00599 6 Remove lubricant tube and reinstal...

Page 64: ...ill require service within a few hours by an authorized dealer once the outboard is recovered from the water This immediate attention by a servicing dealer is necessary once the engine is exposed to the atmosphere to minimize internal corrosion damage to the engine ...

Page 65: ...d Fuel Tank Pour the required amount of gasoline stabilizer follow instructions on container into a separate container and mix with approximately one quart one liter of gasoline Pour this mixture into fuel tank Place the outboard in water or connect flushing attachment for circulating cooling water Run the engine for ten minutes to fill the engine fuel system Protecting External Outboard Component...

Page 66: ...ery 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 67: ... disconnected or kinked Primer bulb not squeezed Primer bulb check valve is faulty Fuel filter is obstructed Refer to Maintenance section Fuel pump failure Fuel tank filter obstructed Open 20 Amp fuse Refer to Maintenance section Ignition system component failure Wiring or electrical connection faulty Spark plugs fouled or defective Refer to Maintenance section Engine Runs Erratically POSSIBLE CAU...

Page 68: ...aded 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 Low electrolyte level in battery Worn out or inefficient battery Excessive use of electrical accessories Defective rectifier alternator or voltage regulator ...

Page 69: ...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 1 Talk with the dealership s sales manager or service manager If this has already been done then contact the owner of the dealership 2 Should you have a question conce...

Page 70: ...striel de Petit Rechain B 4800 Verviers Belgium Fax 32 87 31 19 65 Mexico Central America South America Caribbean Telephone 954 744 3513 Mercury Marine 11650 Interchange Circle North Miramar FL 33025 U S A Fax 954 744 3535 Japan Telephone 81 053 423 2500 Mercury Marine Japan Anshin cho 283 1 Hamamatsu Shizuoka ken Japan 435 0005 Japan Fax 81 053 423 2510 Asia Singapore Telephone 5466160 Mercury Ma...

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