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EMB00010

Chapter 1

GENERAL 

INFORMATION

IDENTIFICATION NUMBERS 
RECORD

....................................................1-1

Outboard motor serial number...........1-1
Key number...........................................1-1

EMISSION CONTROL INFORMATION

...1-2

SAFETY INFORMATION

..........................1-3

IMPORTANT LABELS

..............................1-5

BASIC BOATING RULES

.........................1-6

FUELING INSTRUCTIONS

.....................1-10

Gasoline ..............................................1-11
Engine oil ............................................1-11

BATTERY REQUIREMENT 

...................1-12

PROPELLER SELECTION

.......................1-13

START-IN-GEAR PROTECTION

............1-14

1

 63B-9-1B-1  2/27/03 2:56 PM  Page 5

Содержание 40C

Страница 1: ...40C 50C OWNER S MANUAL U S A Edition LIT 18626 05 44...

Страница 2: ......

Страница 3: ...cial precautions that must be taken to avoid damage to the outboard motor NOTE A NOTE provides key information to make procedures easier or clearer Yamaha continually seeks advance ments in product de...

Страница 4: ...GENERAL INFORMATION BASIC COMPONENTS OPERATION MAINTENANCE TROUBLE RECOVERY INDEX EMA20010 CONTENTS READ THIS OWNER S MANUAL CAREFULLY BEFORE OPERATING YOUR OUTBOARD MOTOR 1 2 3 4 5 6 E...

Страница 5: ...utboard motor serial number 1 1 Key number 1 1 EMISSION CONTROL INFORMATION 1 2 SAFETY INFORMATION 1 3 IMPORTANT LABELS 1 5 BASIC BOATING RULES 1 6 FUELING INSTRUCTIONS 1 10 Gasoline 1 11 Engine oil 1...

Страница 6: ...er in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your out board motor is stolen 1 Outboard motor serial number EMU00008 KEY NUMBER If ma...

Страница 7: ...ing 1 Emission control information label Existing Technology N A Manufactured date label This label is attached to the clamp bracket or the swivel bracket 2 Manufactured date label EMISSION CONTROL I...

Страница 8: ...ully Make sure there are no gas fumes or leaking fuel before starting the engine Q 8 This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which may cause brain damag...

Страница 9: ...y organizations including the following United States Coast Guard Consumer Affairs Staff G BC Office of Boating Public and Consumer Affairs U S Coast Guard Headquarters Washington D C 20593 0001 Boati...

Страница 10: ...ARNING Be sure shift control is in neutral before starting engine except 2HP Do not touch or remove electrical parts when starting or during operation Keep hands hair and clothes away from flywheel an...

Страница 11: ...dened vessel These rules determine which vessel has the right of way and what each vessel should do Stand on vessel The vessel with the right of way has the duty to continue its course and speed excep...

Страница 12: ...are close enough to run the risk of collision neither of you has the right of way Both of you should alter course to avoid an accident You should keep the other vessel on your port left side This rule...

Страница 13: ...e passage of other vessels in narrow channels 1 8 Sailing vessel right of way Sailing vessels should normally be given the right of way The exceptions to this are 1 When the sailing vessel is overtaki...

Страница 14: ...toward head of naviga tion Leave to starboard right proceeding up stream White Light Red Light A LIGHTED SAFE WATER BUOY No number Marks midchannel pass on either side Letter has no lateral significa...

Страница 15: ...ely with dry rags 8 Do not overfill the fuel tank 8 Tighten the filler cap securely after refueling 8 If you should swallow some gasoline inhale a lot of gasoline vapor or get gasoline in your eyes ge...

Страница 16: ...10 and the fuel meets minimum octane ratings Gasohol containing methanol is not recommended by Yama ha because it can cause fuel system dam age or engine performance problems E 1 11 Recommended gasol...

Страница 17: ...the electric system could perform poorly or be overloaded causing electric system damage For electric start models choose a battery which meets the following specifications EMU01859 Minimum cold cran...

Страница 18: ...verse effect on the engine Yamaha outboard motors are fitted with propellers chosen to perform well over a range of applications but there may be uses where a propeller with a different pitch would be...

Страница 19: ...rpm should be within the upper half of the full throttle operating range as listed in SPECIFICA TIONS on page 4 1 Select a propeller which fulfills this requirement If operating under conditions whic...

Страница 20: ...E MEMO...

Страница 21: ...LS AND OTHER FUNCTIONS 2 2 Fuel tank 2 2 Remote control 2 3 Power trim tilt switch 2 7 Warning indicator 2 8 Digital tachometer 2 9 Trim tab 2 12 Tilt support lever 2 13 Top cowling lock lever 2 13 WA...

Страница 22: ...Clamp bracket 4 Battery lead 5 Anode 6 Cooling water inlet 7 Propeller 8 Trim tab Anode 9 Anti cavitation plate 0 Anode q Trim angle adjusting rod w Tilt support lever e Top cowling r Remote control b...

Страница 23: ...crew If equipped EMC31010 Fuel hose joint This connector is provided for connecting or disconnecting fuel hose EMC41110 Fuel meter This meter is on the fuel tank cap It shows current fuel quantity in...

Страница 24: ...h if equipped 7 Throttle friction adjusting screw 701011 w q e r t y u R N F q w e r t y u u t r y 701031 EMC50010 Remote control lever Moving the lever forward from the Neu tral position engages Forw...

Страница 25: ...ever will operate only when the remote control lever is in Neu tral The remote control lever will operate only when the neutral throttle lever is in the closed position 1 Fully open 2 Fully closed N 7...

Страница 26: ...e control lever grip Pushing the switch UP trims the motor up then tilts the motor up Pressing the switch DN tilts the motor down and trims the motor down When the switch button is released the motor...

Страница 27: ...r w 8 Attach the engine stop switch lanyard to a secure place on your clothing your arm or leg while operating 8 Do not attach the lanyard to clothing that could tear loose Do not route the lanyard in...

Страница 28: ...ton is released the motor will stop in its current position E EMC87011 Throttle friction adjusting screw A friction device in the remote control box provides resistance to movement of the remote contr...

Страница 29: ...ncreas ing the risk of collision with another boat or an obstacle NOTE Refer to the section Adjusting Trim Angle and Tilting Up Down for instructions on usage 303016 q 303012 q EMU00120 WARNING INDICA...

Страница 30: ...cator 1 Tachometer 2 Trim meter 3 Hour meter 4 Oil level indicator 5 Overheat warning indicator 6 Set button 7 Mode button NOTE All segments of the display will light momentarily after the main switch...

Страница 31: ...EMU01620 Hour Meter This meter shows the number of hours the engine has been run It can be set to show the total number of hours or the number of hours for the current trip The display can also be tur...

Страница 32: ...has activated If neces sary refer to the TROUBLESHOOTING section in this manual Consult your deal er if the problem cannot be located and corrected EMU00138 Oil Level Indicator This indicator shows t...

Страница 33: ...ed to be sure steering is correct Be sure you have tightened the bolt after adjusting the trim tab 1 Trim tab 2 Bolt 3 Cap If equipped cC The trim tab also serves as an anode to protect the engine fro...

Страница 34: ...n lock the tilt support lever to the clamp bracket 403011 EMD62011 TOP COWLING LOCK LEVER To remove the engine top cowling turn the lock lever Then lift off the cowling When replacing the cowling chec...

Страница 35: ...for clogging 1 Digital tachometer EMD80010 WARNING SYSTEM cC Do not continue to operate the engine if the warning device has activated Consult your Yamaha dealer if the problem can not be located and...

Страница 36: ...use NOTE The warning for oil filter clogging is simi lar to the warnings for low oil level and overheating For easy troubleshooting it is advisable to check for engine overheating first then oil level...

Страница 37: ...PERATION CHECKS 3 8 Operation after a long period of storage 3 9 BREAKING IN ENGINE 3 10 STARTING ENGINE 3 12 WARMING UP ENGINE 3 15 SHIFTING 3 16 Forward 3 16 Reverse 3 16 STOPPING ENGINE 3 17 TRIMMI...

Страница 38: ...ne water spray while the boat is cruising Severe engine damage may result if the motor is operat ed continuously in the presence of air borne water spray NOTE During water testing check the buoyancy o...

Страница 39: ...he specific boat motor combination 8 Your dealer or other person experi enced in proper rigging should mount the motor If you are mounting the motor yourself you should be trained by an experienced pe...

Страница 40: ...If the mounting height is too high cavitation tends to occur thus reducing the propulsion and if the pro peller tips cut the air the engine speed will rise abnormally and cause the engine to overheat...

Страница 41: ...on of lead from most fuels As gasoline has changed the amount of additives such as aromatics and oxy genates has increased These additives are important for the engines in passen ger cars but they can...

Страница 42: ...ring break in Simply pour gasoline into the fuel tank and oil into the oil tank Convenient indicator segments indicate the status of the oil supply For details on reading the indicator segments see Oi...

Страница 43: ...oil filler access cap on top of the top cowling counterclockwise and open it 2 Open the oil tank filler cap by pulling a tab on the cap 3 Slowly fill the engine oil into the engine oil tank 4 After fi...

Страница 44: ...tachome ter Bottom cowling Engine oil tank No refilling necessary Green Add oil refer to oil filling Yellow Buzzer sounds in remote control box and engine speed is limited to about 2 000 r min to hel...

Страница 45: ...ons to be sure they are tight 8 Be sure the fuel tank is positioned on a secure flat surface and that the fuel hose is not twisted or flattened or likely to contact sharp objects EMF43010 Controls 8 C...

Страница 46: ...t the engine 2 Start the engine Leave it idling w 8 Do not touch or remove electrical parts when starting or during operation 8 Keep hands hair and clothes away from the flywheel and other rotating pa...

Страница 47: ...break in will help ensure proper performance and longer engine life cC 8 Failure to follow the break in procedure could result in reduced engine life or even severe engine damage 8 Premix fuel must be...

Страница 48: ...r Accelerate at full throttle onto plane then reduce engine speed to three quarter throttle approximately 4 000 r min Vary engine speed occasional ly Run at full throttle for one minute then allow abo...

Страница 49: ...ts exhaust gases which contain carbon monoxide a col orless odorless gas which may cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cabin area...

Страница 50: ...ock plate on the other end of the lanyard in the engine stop switch w 8 Attach the engine stop switch lanyard to a secure place on your clothing your arm or leg while operating 8 Do not attach the lan...

Страница 51: ...itch to START when the engine is running 8 Do not keep the starter motor turning for more than 5 seconds with the main switch in the START position If the engine does not start within 5 seconds return...

Страница 52: ...ugh the cooling pas sages If water is not flowing out of the pilot hole at all times while the engine is running do not continue to run the engine Overheating and serious damage could occur Stop the e...

Страница 53: ...U00264 FORWARD Pull up the neutral interlock trigger if equipped and move the remote control lever quickly and firmly from Neutral to Forward N R 701044 EMU00269 REVERSE w When operating in reverse go...

Страница 54: ...the main switch to OFF NOTE The engine can also be stopped by pulling the lanyard from the engine stop switch then turning the main switch to OFF ON START OFF 701023 304036 902052 2 If the fuel joints...

Страница 55: ...t engine and propeller Correct trim is also affected by variables such as the load in the boat sea conditions and running speed w Excessive trim for the operating condi tions either trim up or trim do...

Страница 56: ...lt switch located on the bottom engine cowling if equipped only when the boat is at a complete stop with the engine off The outboard motor trim angle can be adjusted operating the power trim tilt swit...

Страница 57: ...d economy are decreased because the hull of the boat is pushing the water and there is more air drag Excessive trim out can also cause the propeller to ventilate which reduces performance further and...

Страница 58: ...engine is running Severe damage from over heating can result 8 Do not tilt up the engine by pushing the steering handle as this could break the handle 8 Keep the power unit higher than the propeller...

Страница 59: ...or 304036 UP DN 701034 UP DN 302013 DN UP 2 Push the power trim and tilt switch UP until the outboard has tilted up completely w Leaking fuel is a fire hazard Disconnect the fuel line if the engine wi...

Страница 60: ...the outboard is to be used in turbid muddy water conditions 3 23 411035 EMG64110 PROCEDURE FOR TILTING DOWN Power trim and tilt model 1 Push the power trim and tilt switch UP until the engine is supp...

Страница 61: ...ecking top cowling 4 13 Checking fuel system 4 14 Cleaning fuel filter 4 15 Inspecting idling speed 4 16 Checking water in engine oil tank 4 17 Replacing fuse 4 18 Checking wiring and connectors 4 18...

Страница 62: ...em 8Propeller mark FUEL AND OIL TIGHTNING TORQUE 8Fuel Fuel tank capacity L US gal Imp gal 8Recommended engine oil Lubrication Engine oil capacity engine oil tank L US qt Imp qt 8Recommended gearcase...

Страница 63: ...stem B8HS 10 0 9 1 0 0 035 0 039 Remote control Electric start 245 323 52 12 6 Prime start system Regular unleaded gasoline P O N minimum 86 YAMALUBE 2 STROKE OUTBOARD OIL or an equivalent TC W3 certi...

Страница 64: ...o not use the tilt support lever knob when trailering the boat The outboard motor could shake loose from the tilt support and fall If the motor can not be trailered in the down position use an additio...

Страница 65: ...on It is advisable to have your outboard motor serviced by an authorized Yamaha dealer prior to stor age However the following procedures can be performed by you the owner with a minimum of tools EMK2...

Страница 66: ...ne top cowling and silencer cover 2 Install the outboard motor on the water tank and fill the tank with fresh water to above the level of the anti cavitation plate 1 Water surface 2 Lowest water level...

Страница 67: ...ard at high speed while on the flushing attachment or overheating could occur w 8 Do not touch or remove electrical parts when starting or during operation 8 Keep hands hair and clothes away from flyw...

Страница 68: ...ces sary to manually override the control unit to completely fill the engine main tank Refer to Oil level warning sec tion 4 Change the lower unit oil Refer to CHANGING GEAR OIL Inspect the oil for th...

Страница 69: ...in a closed space Always wear eye protection when working near batteries KEEP OUT OF REACH OF CHILDREN NOTE Batteries vary among manufacturers Therefore the following procedures may not always apply...

Страница 70: ...he emission control system must be performed by an authorized Yamaha marine dealership A service manual is available for purchase through a Yamaha dealer for owners who have the mechanical skills tool...

Страница 71: ...leaning adjustment replacement Greasing points Greasing Gear oil Change Fuel system Inspection Fuel filter can be disassembled Inspection cleaning Fuel tank Yamaha portable tank Inspection cleaning Id...

Страница 72: ...E 4 11 EMU00366 GREASING Yamaha marine grease Water resistant grease...

Страница 73: ...ir leak or carburetion problem in that cylinder Do not attempt to diagnose any problems yourself Instead take the outboard motor to a Yamaha dealer You should periodically remove and inspect the spark...

Страница 74: ...to 1 2 a turn past finger tight Have the spark plug adjusted to the correct torque as soon as possible with a torque wrench 1 Spark plug gap 2 Spark plug I D mark NGK 903022 q w Spark plug torque Refe...

Страница 75: ...nd it should be repaired immediately by Yama ha dealer or other qualified mechanic Checking points 8 Fuel system parts leakage 8 Fuel hose joint leakage 8 Fuel hose cracks or other damage 8 Fuel conne...

Страница 76: ...e cup onto the filter housing 4 207035 000983 q w e r EMK50011 CLEANING FUEL FILTER w Gasoline petrol is highly flammable and its vapors are flammable and explosive 8 If you have any question about pr...

Страница 77: ...rotating parts while engine is running cC This procedure must be performed while the outboard motor is in the water A flushing attachment or test tank can also be used A diagnostic tachometer should...

Страница 78: ...e idle speed will measure higher than normal If you have difficulty verifying the idle speed or the idle speed requires adjustment consult a Yamaha dealer or other qualified mechan ic 213012 q w EMU03...

Страница 79: ...zard NOTE If the new fuse blows again immediately consult a Yamaha dealer 1 Fuse holder 2 Fuse 20A 205015 q w EMK78010 CHECKING WIRING AND CONNECTORS 1 Check that each grounding wire is properly secur...

Страница 80: ...gn of oil leaks 2 Operate each of the power trim and tilt switches on remote control and engine bottom cowling If equipped to check that all switches work 3 Tilt up the motor and check that the trim a...

Страница 81: ...ut off switch if your boat has one 8 Do not use your hand to hold the pro peller when loosening or tightening the propeller nut Put a wood block between the cavitation plate and the propeller to preve...

Страница 82: ...3 Tighten the propeller nut to the speci fied torque 4 Align the propeller nut with the pro peller shaft hole Insert a new cotter pin in the hole and bend the cotter pin ends NOTE When the propeller n...

Страница 83: ...hat the oil drain plug is at the lowest point possi ble 2 Place a suitable container under the gear case 3 Remove the oil drain plug 1 NOTE The oil drain plug is magnetic Remove all metal particles fr...

Страница 84: ...etrol is highly flammable and its vapors are flammable and explosive 8 If you have any question about properly doing this procedure consult your Yamaha dealer 8 Keep away from sparks cigarettes flames...

Страница 85: ...lter to dry 3 Replace the gasket with a new one Reinstall the fuel hose joint assembly and tighten the screws firmly 902054 604012 405011 EMU14622 INSPECTING AND REPLACING ANODE S Yamaha outboard moto...

Страница 86: ...ush with water 8 EYES Flush with water for 15 minutes and get immediate medical attention Antidote INTERNAL 8 Drink large quantities of water or milk followed by milk of magnesia beaten egg or vegetab...

Страница 87: ...er suitable to use in batteries 2 Always keep the battery in a good state of charge Installing a voltmeter will help you monitor your battery If you will not use the boat for a month or more remove th...

Страница 88: ...cC 8 Make sure the main switch on applica ble models is OFF before working on the battery 8 Reversal of the battery leads will dam age the rectifier 8 Connect the RED lead first when installing the ba...

Страница 89: ...Consult a Yamaha dealer for touch up paint 102024 102025 EML44010 COATING THE BOAT BOTTOM A clean hull improves boat performance The boat bottom should be kept as clean of marine growths as possible...

Страница 90: ...E MEMO...

Страница 91: ...apter 5 TROUBLE RECOVERY TROUBLESHOOTING 5 1 TEMPORARY ACTION IN EMERGENCY 5 5 Impact damage 5 5 Power trim tilt will not operate 5 5 Starter will not operate 5 6 Engine fails to operate 5 8 Treatment...

Страница 92: ...ic overload and repair Replace fuse with one of correct amperage 4 Have serviced by a Yamaha dealer 5 Shift to neutral B Engine will not start Starter operates 1 Fuel tank empty 2 Fuel contaminated or...

Страница 93: ...e adjustment incorrect 19 Battery lead disconnected 1 Inspect spark plug s Clean or replace with recommended type 2 Check for pinched or kinked fuel line or other obstructions in fuel system 3 Fill ta...

Страница 94: ...ed 2 Propeller pitch or diameter incorrect 3 Trim angle incorrect 4 Motor mounted at incorrect height on transom 5 Warning system activated 6 Boat bottom fouled with marine growth 7 Spark plug s foule...

Страница 95: ...maha dealer 15 Check and replace oil with specified type 16 Have serviced by a Yamaha dealer 17 Open the air vent screw 18 Have serviced by a Yamaha dealer 19 Connect correctly 20 Inspect spark plug a...

Страница 96: ...ct the boat for damage 3 Whether damage is found or not return to the nearest harbor slowly and carefully 4 Have a Yamaha dealer inspect the outboard motor before operating it again 607011 EMG65110 PO...

Страница 97: ...pectedly start to move which could result in an accident 8 Be sure no one is standing behind you when pulling the starter rope It could whip behind you and injure someone 8 An unguarded rotating flywh...

Страница 98: ...the engine is in Neutral and that the lanyard is attached to the engine stop switch The main switch must be on if the main switch is equipped on the elec tric start model NOTE Prime start model If th...

Страница 99: ...011 OPEN CLOSE 001671 N 701014 2 Open the emergency starter valve located behind the silencer cover on the front side 3 Squeeze the priming pump two or three times to feed fuel 4 Turn the neutral thro...

Страница 100: ...ssible for the starter motor to start the engine 7 Return the neutral throttle lever slow ly to its home position so that the engine does not stall 8 After the engine starts return the emergency start...

Страница 101: ...Thoroughly wash away mud salt seaweed etc with fresh water 2 Remove the spark plugs and face the spark plug holes downward to allow any water mud or contaminants to drain 3 Drain the fuel from the ca...

Страница 102: ...E MEMO...

Страница 103: ...EMP00010 Chapter 6 INDEX INDEX 6 1 1 2 3 4 5 6 E...

Страница 104: ...nnecting the battery 4 27 Cruising in other conditions 3 32 Cruising in salt water 3 32 Cruising in turbid water 3 32 D Digital tachometer 2 9 Disconnecting the battery 4 27 E Emission control informa...

Страница 105: ...ts 4 9 Replacing fuse 4 18 Reverse 3 16 Ring free fuel additive 3 4 S Safety information 1 3 Shifting 3 16 Specifications 4 1 Start in gear protection 1 14 Starter will not operate 5 6 Starting engine...

Страница 106: ...istration records are checked 2 Read the Limited Warranty statement which follows these instructions This warranty applies to Yamaha outboard motors sold in the United States whether purchased sepa ra...

Страница 107: ...lable in one country may not be sold or serviced in the other 6 If you need any additional information about your Yamaha or warranty coverage which your dealer cannot provide please contact us directl...

Страница 108: ...or purchased and registered for use in the United States only excluding its territo ries For warranty provisions outside the United States contact the particular country s local Yamaha distributor WAR...

Страница 109: ...SO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE YAMAHA MOTOR CORPORATION U S A Post Office Box 6555 Cypress California 90630 WARRANTY QUESTIONS AND ANSWERS Q What costs are my responsibility durin...

Страница 110: ...tion such as names addresses model engine serial number dates and receipts CHANGE OF ADDRESS The federal government requires each manufacturer of a motor vehicle to maintain a complete up to date list...

Страница 111: ...l receive service If you need more information about your warranty coverage or your Yamaha outside the U S A or Canada please contact an autho rized Yamaha dealer in your country 2 Keep a copy of your...

Страница 112: ...Printed in Japan April 2003 0 5 1 63B 28199 1B 40VETO 50HETO E Printed on recycled paper...

Страница 113: ...d tail OUTBOARD MOTOR MODEL AND SERIAL NUMBER From I D label on clamp bracket MOD LE ET NO DE S RIE DU MOTEUR HORS BORD sur l tiquette d identification de la presse de fixation For Dealer Use Only A...

Страница 114: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT Warranty card 2 27 02 11 47 AM Page 2...

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