Yamaha T-50 Owner'S Manual Download Page 57

Page: 57 / 116

Engine control system

EMU3016B

Low oil pressure alert

If the oil pressure drops too low, the alert de-
vice will activate.



The engine speed will automatically de-
crease to about 2000 r/min. If equipped
with a low oil pressure-alert indicator, it will
light or blink.



The buzzer will sound (if equipped on the
tiller handle, remote control box, or main
switch panel).

If the alert system has activated, stop the en-
gine as soon as it is safe to do so. Check the
oil level and add oil as needed. If the oil level
is correct and the alert device does not
switch off, consult your Yamaha dealer.

ZMU03604

ZMU04994

ZMU07104

6C1-9-3B-1E0.book 51 ページ２０１２年１１月１９日　月曜日　午前１０時３５分

Summary of Contents for T-50

Page 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F50 T50 F60 T60 F70 LIT 18626 09 90 6C1 28199 3B E0 6C1 9 3B 1E0 book 1 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 2: ...lifornie pour provoquer le cancer des anomalies congénitales et des troubles de la reproduction Read this manual carefully before operating this outboard motor Keep this manual onboard in a waterproof bag when boating This manual should stay with the outboard motor if it is sold 6C1 9 3B 1E0 book 1 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 3: ...epancies between your machine and this manual If there is any question concerning this manu al please consult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the product and perform the specified periodic inspections and main tenance by correctly following the instruc tions in the owner s manual Any damage resulting from neglect of these instructions is not covered b...

Page 4: ...6 Boat horsepower rating 16 Mounting motor 16 Remote control requirements 17 Battery requirements 17 Specifications of Battery 17 Mounting battery 17 Multiple batteries 17 Propeller selection 17 Start in gear protection 18 Engine oil requirements 18 Fuel requirements 19 Gasoline 19 Gasoline Additives 20 Anti fouling paint 21 Motor disposal requirements 21 Emergency equipment 21 Emission control in...

Page 5: ...d Fuel Meter 47 Command Link Multifunction Speedometer 48 Command Link Multifunction Fuel Management Meter 49 Engine control system 50 Alert system 50 Overheat alert 50 Low oil pressure alert 51 Installation 52 Installation 52 Mounting the outboard motor 52 Operation 54 First time operation 54 Fill engine oil 54 Breaking in engine 54 Getting to know your boat 54 Checks before starting engine 54 Fu...

Page 6: ...5 Inspecting idle speed 86 Changing engine oil 87 Inspecting wiring and connectors 89 Checking propeller 89 Removing propeller 90 Installing propeller 90 Changing gear oil 91 Inspecting and replacing anode s 93 Checking battery for electric start models 93 Connecting the battery 94 Disconnecting the battery 94 Trouble Recovery 95 Troubleshooting 95 Temporary action in emergency 98 Impact damage 98...

Page 7: ...et when the motor is trimmed or tilted Keep body parts out of this area at all times Be sure no one is in this area before operating the power trim and tilt mechanism The power trim and tilt switches operate even when the main switch is off Keep peo ple be away from the switches whenever working around the motor Never get under the lower unit while it is tilt ed even when the tilt support lever is...

Page 8: ...PFD whenever boating At a minimum children and non swimmers should always wear PFDs and everyone should wear PFDs when there are potentially hazardous boating conditions EMU33731 People in the water Always watch carefully for people in the wa ter such as swimmers skiers or divers whenever the engine is running When someone is in the water near the boat shift into neutral and stop the engine Stay a...

Page 9: ... following accidents 1 There is loss of life or probable loss of life 2 There is personal injury that requires medical attention beyond first aid 3 There is property damage to boats or other property over a certain amount 4 There is complete loss of a boat Contact local law enforcement personnel if a report is necessary EMU44170 Boat education and training For U S A Operators should take a boating...

Page 10: ...d have been provided for your convenience only Contact the U S Coast Guard the National Association of State Boating Law Adminis trators or your local Power Squadron for a complete set of rules governing the waters in which you will be using your boat EMU44180 Boating organizations The following organizations provide boating safety training and information about boating safety and laws In the U S ...

Page 11: ...t cross in front of the vessel with the right of way You should slow down or change directions brief ly and pass behind the other vessel You should always move in such a way that the operator of the other vessel can see what you are doing The general prudential rule This rule is called Rule 2 in the International Rules and says In obeying and construing these rules due regard shall be had to all d...

Page 12: ...hat the other vessel is expected to maintain its course and speed You must stay out of its way until you are clear of it Likewise if an other vessel is passing you you should maintain your speed and direction so that the other vessel can steer itself around you EMU25531 Other special situations There are three other rules you should be aware of when driving your boat around oth er vessels Narrow c...

Page 13: ...ghts to show which side of the buoy a boater should pass on when navigat ing in a particular direction The markings on these buoys are oriented from the perspec tive of being entered from seaward the boat er is going towards the port This means that red buoys are passed on the starboard right side when proceeding from open wa ter into port and black buoys are to port left side When navigating out ...

Page 14: ...Safety information 8 ZMU01708 6C1 9 3B 1E0 book 8 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 15: ...rovided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto len EMU25191 Key number If a main key switch is equipped with the mo tor the key identification number is stamped on your key as shown in the illustration Record this number in the space provided for reference in case you need a new key 1 Outboard motor serial number location 1...

Page 16: ...manuals supplied with the boat Read all labels on the outboard motor and the boat If you need any additional information contact your Yamaha dealer EMU33832 Warning labels If these labels are damaged or missing contact your Yamaha dealer for replacements F50 T50 F60 T60 3 1 2 ZMU07945 6C1 9 3B 1E0 book 10 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 17: ...General information 11 F70 3 1 2 ZMU07691 6C1 9 3B 1E0 book 11 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 18: ... hair and clothing away from rotating parts while the engine is running Do not touch or remove electrical parts when starting or during operation 3 WARNING EWM01671 Read Owner s Manuals and labels Wear an approved personal flotation device PFD Attach engine shut off cord lanyard to your PFD arm or leg so the engine stops if you accidentally leave the helm which could prevent a runaway boat 1 2 3 Z...

Page 19: ...35132 Symbols The following symbols mean as follows Notice Warning Read Owner s Manual Hazard caused by continuous rotation Electrical hazard ZMU05696 ZMU05664 ZMU05665 ZMU05666 6C1 9 3B 1E0 book 13 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 20: ... F60HB 527 mm 20 7 in F70A 534 mm 21 0 in F70HA 534 mm 21 0 in T50B 530 mm 20 9 in T60B 530 mm 20 9 in Dry weight AL L F50B 113 kg 249 lb F50HB 117 kg 258 lb F60B 113 kg 249 lb F60HB 117 kg 258 lb F70A 119 kg 262 lb F70HA 123 kg 271 lb T50B 118 kg 260 lb T60B 118 kg 260 lb Performance Full throttle operating range F50B 5000 6000 r min F50HB 5000 6000 r min F60B 5000 6000 r min F60HB 5000 6000 r mi...

Page 21: ...old engine 0 25 0 35 mm 0 0098 0 0138 in Min cold cranking amps CCA SAE 380 A Min marine cranking amps MCA ABYC 502 A Min reserve capacity RC SAE 124 minutes Maximum generator output F50B 16 A F50HB 16 A F60B 16 A F60HB 16 A F70A 15 A F70HA 15 A T50B 16 A T60B 16 A Lower unit Gear shift positions Forward neutral reverse Gear ratio F50B 1 85 24 13 F50HB 1 85 24 13 F60B 1 85 24 13 F60HB 1 85 24 13 F...

Page 22: ... 1 84 kgf m 13 3 ft lb T60B 18 Nm 1 84 kgf m 13 3 ft lb Propeller nut F50B 35 Nm 3 57 kgf m 25 8 ft lb F50HB 35 Nm 3 57 kgf m 25 8 ft lb F60B 35 Nm 3 57 kgf m 25 8 ft lb F60HB 35 Nm 3 57 kgf m 25 8 ft lb F70A 34 Nm 3 47 kgf m 25 1 ft lb F70HA 34 Nm 3 47 kgf m 25 1 ft lb T50B 35 Nm 3 57 kgf m 25 8 ft lb T60B 35 Nm 3 57 kgf m 25 8 ft lb Engine oil drain bolt F50B 28 Nm 2 86 kgf m 20 7 ft lb F50HB 28...

Page 23: ...rted if battery voltage is too low NOTICE ECM01061 Do not use a battery that does not meet the specified capacity If a battery that does not meet specifications is used the electric system could perform poorly or be overloaded causing electric system damage EMU36290 Mounting battery Mount the battery holder securely in a dry well ventilated vibration free location in the boat WARNING Do not put fl...

Page 24: ...run in the proper range for your maximum load but remember that you may need to reduce your throttle setting to stay within the recommended engine speed range when carrying lighter loads To check the propeller see page 89 EMU25770 Start in gear protection Yamaha outboard motors or Yamaha ap proved remote control units are equipped with start in gear protection device s This feature permits the eng...

Page 25: ...el system damage and internal engine damage NOTICE ECM01981 Do not use leaded gasoline Leaded gasoline can seriously damage the en gine Avoid getting water and contaminants in the fuel tank Contaminated fuel can cause poor performance or engine damage Use only fresh gasoline that has been stored in clean containers Gasoline with Ethanol Two types of gasoline are commonly avail able in the U S A an...

Page 26: ...ould result in engine damage Ethanol is hygroscopic has a strong at traction to water Therefore any water that inadvertently enters the fuel system including moisture that is absorbed from the air will mix with the ethanol in the gas oline If the amount of water is excessive the ethanol and water mixture will separate from the gasoline in a layer at the bottom of the fuel tank This ethanol and wat...

Page 27: ...n be coated with an anti fouling paint to inhibit marine growth Anti fouling paints specifically formulated for use on aluminum may be applied to the out board motor The original Yamaha paint sur face may be scuffed lightly before applying anti fouling paint but do not remove the orig inal paint Removal of the original paint will increase the rate of corrosion NOTICE ECM02410 Anti fouling paint fo...

Page 28: ...AUST REGULATIONS FOR SI MARINE ENGINES REFER TO THE OWNER S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS MEETS U S EPA EVAP STANDARDS USING CERTIFIED COMPONENTS FAMILY DISPLACEMENT liters SPARK PLUG FUEL GASOLINE FELs HC NOx CO g kW hr MAX POWER kW IDLE SPEED rpm IN NEUTRAL SPARK PLUG GAP mm VALVE LASH mm IN EX YAMAHA MOTOR CO LTD INFORMATION ANTIPOLLUTION MFI CE MOTEUR EST CONFORME AUX N...

Page 29: ...es EMU40340 Two Stars Very Low Emission The two star label identifies engines that meet the Air Resources Board s Personal Watercraft and Outboard marine engine 2004 exhaust emission standards Engines meeting these standards have 20 lower emissions than One Star Low Emission en gines EMU40350 Three Stars Ultra Low Emission The three star label identifies engines that meet the Air Resources Board s...

Page 30: ...the Air Resources Board s Sterndrive and Inboard marine engine 2009 exhaust emission standards Personal Watercraft and Outboard marine engines may also comply with these standards Engines meet ing these standards have 90 lower emis sions than One Star Low Emission engines ZMU05663 6C1 9 3B 1E0 book 24 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 31: ...n screw 5 Anode 6 Anti cavitation plate 7 Trim tab anode 8 Propeller 9 Cooling water inlet 10 Anode s 11 Clamp bracket 12 Tilt support lever 13 Power trim and tilt switch 14 Engine stop button Engine shut off switch 15 Tiller handle 16 Gear shift lever 17 Variable trolling RPM switch 18 Power trim and tilt switch 19 Throttle grip 20 Alert indicator 21 Clip 22 Main switch 23 Steering friction adjus...

Page 32: ...ling lock lever 4 Drain screw 5 Anti cavitation plate 6 Trim tab anode 7 Propeller 8 Cooling water inlet 9 Anode s 10 Clamp bracket 11 Tilt support lever 12 Power trim and tilt switch 13 Flushing device 14 Remote control box side mount type 15 Digital tachometer 16 Digital speedometer 17 Tachometer 18 Trim meter 19 Fuel tank 6C1 9 3B 1E0 book 26 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 33: ...8 Cooling water inlet 9 Anode s 10 Clamp bracket 11 Tilt support lever 12 Power trim and tilt switch 13 Engine stop button Engine shut off switch 14 Tiller handle 15 Gear shift lever 16 Variable trolling RPM switch 17 Power trim and tilt switch 18 Throttle grip 19 Alert indicator 20 Clip 21 Main switch 22 Steering friction adjuster 23 Flushing device 24 Digital tachometer 25 Digital speedometer 26...

Page 34: ...er Com mercial users should conform to relevant licensing or approval authority regula tions 1 4 6 3 2 5 ZMU05429 1 Tachometer unit Square type 2 Tachometer unit Round type 3 Speedometer unit Square type 4 Speed fuel meter unit Square type 5 Speed fuel meter unit Round type 6 Fuel management meter unit Square type 1 Fuel joint 2 Fuel gauge 3 Pressure relief tab 4 Fuel tank cap 1 2 3 3 5 4 ZMU07442...

Page 35: ...e remote control lever actuates both the shifter and the throttle The electrical switch es are mounted on the remote control box EMU26190 Remote control lever Moving the lever forward from the neutral po sition engages forward gear Pulling the le ver back from neutral engages reverse The engine will continue to run at idle until the le ver is moved about 35 a detent can be felt Moving the lever fa...

Page 36: ...utral throttle lever is in the closed position EMU25913 Tiller handle To change direction move the tiller handle to the left or right as necessary EMU25924 Gear shift lever Move the gear shift lever forward to engage the forward gear or rearward to engage the reverse gear EMU25942 Throttle grip The throttle grip is on the tiller handle Turn the grip counterclockwise to increase speed and clockwise...

Page 37: ...icult to move the remote control lever or throttle grip which could result in an accident EWM00032 When constant speed is desired tighten the adjuster to maintain the desired throttle set ting EMU25995 Engine shut off cord lanyard and clip The clip must be attached to the engine shut off switch for the engine to run The cord should be attached to a secure place on the operator s clothing or arm or...

Page 38: ... EMU26091 Main switch The main switch controls the ignition system its operation is described below off With the main switch in the off posi tion the electrical circuits are off and the key can be removed on With the main switch in the on posi tion the electrical circuits are on and the key cannot be removed start With the main switch in the start po sition the starter motor turns to start the en ...

Page 39: ...orque TIP Steering movement is blocked when the adjuster lever is set to the A position Check the tiller handle for smooth move ment when the lever is turned to the star board side B Do not apply lubricants such as grease to the friction areas of the steering friction ad juster EMU26143 Power trim and tilt switch on remote control or tiller handle The power trim and tilt system adjusts the outboar...

Page 40: ...ttempting to use this switch while the boat is moving could increase the risk of falling overboard and could distract the operator increasing the risk of collision with another boat or an obstacle EMU30901 Variable trolling RPM switches The trolling speed can be adjusted when the outboard motor is trolling Press the switch to increase the trolling speed and press the switch to decrease the trollin...

Page 41: ...figure If the boat tends to veer to the right starboard side turn the trim tab end to the starboard side B in the figure NOTICE ECM00840 The trim tab also serves as an anode to protect the engine from electrochemical corrosion Never paint the trim tab as it will become ineffective as an anode EMU26341 Tilt support lever for power trim and tilt model To keep the outboard motor in the tilted up posi...

Page 42: ...motor using a garden hose and tap water TIP For details on usage see page 78 EMU33465 Fuel filter Water separator This engine has a combination fuel filter wa ter separator and associated alert system If water separated from the fuel exceeds a specific volume the alert device of Com mand Link Multifunction Tachometer will ac tivate Activation of alert device The water separator alert indicator of ...

Page 43: ...ron fuel filter has been show to greatly reduce the chance of fuel contamination problems Consult your dealer for information about Yamaha 10 mi cron fuel filters if your boat does not have one 6C1 9 3B 1E0 book 37 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 44: ...will light up For further information on reading the indicator see page 50 NOTICE ECM00052 Do not continue to run the engine if the overheat alert indicator is on Serious en gine damage will occur EMU26493 Digital tachometer The tachometer shows the engine speed and has the following functions All segments of the display will light momen tarily after the main switch is turned on and will return to...

Page 45: ... The display can also be turned on and off To change the display format press the mode button The display can show total hours or trip hours or turn off To reset the trip hours simultaneously press the set and mode buttons for more than 1 second while the trip hours are displayed This resets the trip counter to 0 zero The total number of hours the engine has been run cannot be reset EMU26524 Low o...

Page 46: ...n tarily after the main switch is turned on and will return to normal thereafter EMU36061 Speedometer The speedometer displays km h mph or knots according to operator preference Se lect the desired units of measurement by set ting the selector switch on the back of the gauge See the illustration for settings EMU26713 Fuel gauge Eight segments indicate the fuel level When 1 Low oil pressure alert i...

Page 47: ...meter EMU26691 Trip meter This gauge displays the distance the boat has traveled since the gauge was last reset The trip distance is shown in kilometers or miles depending upon the unit of measure ment selected for the speedometer To reset the trip meter to zero press the set and mode buttons at the same time The trip distance is kept in memory by bat tery power The stored data will be lost if the...

Page 48: ...n and blink Get back to the port soon if an alert device has activated For charging the battery con sult your Yamaha dealer EMU26471 Analog tachometer This gauge shows the engine speed and has the following functions EMU26506 Low oil pressure alert indicator If oil pressure drops too low this indicator will flash For further information see page 50 NOTICE ECM00022 Do not continue to run the engine...

Page 49: ...it square and round types speedometer unit square type speed fuel meter unit square and round types and fuel management meter square type The indicator system is slightly different between the round and square types Check the mod el and type of your unit carefully This manu al describes mainly the alert indicators For more details on setting meters or changing indicator systems see the operation m...

Page 50: ...ay comes on the gauge will change to normal operation If the buzzer sounds and the water separator alert indica tor blinks consult your Yamaha dealer im 1 Set button 2 Mode button 1 Tachometer 2 Trim meter 3 Multifunction display 4 Cooling water pressure 5 Cooling water engine temperature 6 Water detection alert indicator 7 Battery voltage 8 Oil pressure 4 stroke models 2 1 ZMU05415 2 3 1 4 5 6 7 ...

Page 51: ...tomatically when the display is switched to the normal display The default engine idle speed is also reset automatically when the engine is turned off or when the engine speed exceeds 3000 r min When warming up a cold engine the troll ing speed cannot be decreased below the specified engine idle speed EMU36130 Low oil pressure alert If the engine oil pressure drops too low the low oil pressure ale...

Page 52: ...e damage will occur Do not continue to operate the engine if a alert device has activated Consult your Yamaha dealer if the problem can not be located and corrected EMU36150 Water separator alert This indicator will blink if water has accumu lated in the water separator fuel filter while cruising In such an event stop the engine immediately and see page 98 of this manual to drain the water from th...

Page 53: ... fuel meter to tal fuel consumption display fuel economy display fuel flow display and system voltage display The chosen display is selected using the set and mode buttons as described in this section If the speed sensor is installed the unit can also show the trip display However even if the speed sensor is not installed the trip display can be shown by connecting an optional sensor to the unit I...

Page 54: ...display The chosen display is se lected using the set and mode buttons as described in this section In addition the speedometer can show the desired unit of measurement such as km h mph or knots If the speed sensor is in stalled the unit can also show the trip dis play However even if the speed sensor is not installed the trip display can be shown 1 Set button 2 Mode button 1 Speedometer 2 Fuel me...

Page 55: ... Fuel Management Meter The fuel management meter has the func tions of fuel flow meter total consumption display fuel economy display and remaining fuel display The chosen display is selected using the set and mode but tons as described in this section After the main switch is first turned to the on position all of the displays come on as a test After a few seconds the unit will change to normal o...

Page 56: ...gh the alert device will activate The engine speed will automatically de crease to about 2000 r min The overheat alert indicator will light or blink The buzzer will sound if equipped on the tiller handle remote control box or main switch panel If the alert system has activated stop the en gine and check the cooling water inlets Check trim angle to be sure that the cool ing water inlet is submerged...

Page 57: ...ert indicator it will light or blink The buzzer will sound if equipped on the tiller handle remote control box or main switch panel If the alert system has activated stop the en gine as soon as it is safe to do so Check the oil level and add oil as needed If the oil level is correct and the alert device does not switch off consult your Yamaha dealer ZMU03604 ZMU04994 ZMU07104 6C1 9 3B 1E0 book 51 ...

Page 58: ...se the boat could be hard to steer For single en gine boats mount the outboard motor on the centerline keel line of the boat EMU26934 Mounting height boat bottom The mounting height of your outboard motor affects its efficiency and reliability If it is mounted too high propeller ventilation may occur which will reduce propulsion due to excessive propeller slip and the water in takes for the coolin...

Page 59: ...or condition of the boat or ac cessories such as transom ladders or depth finder transducers can create airborne water spray while the boat is cruising If the outboard motor is oper ated continuously in the presence of airborne water spray enough water could enter the engine through the air intake opening in the top cowling to cause severe engine damage Remove the cause of the airborne water spray...

Page 60: ...nstalled as follows For 10 hours for breaking in engine avoid ex tended idling rough water and crowded ar eas 1 For the first hour of operation Run the engine at varying speeds up to 2000 r min or approximately half throttle 2 For the second hour of operation Increase engine speed as much as nec essary to put the boat on plane but avoid full throttle operation then back off on the throttle while k...

Page 61: ... leakage regularly If any fuel leakage is found the fuel system must be repaired by a qualified mechanic Improper repairs can make the outboard unsafe to operate EMU36451 Check for fuel leaks Check for fuel leaks or gasoline fumes in the boat Check for fuel leakage from the fuel sys tem Check the fuel tank and fuel lines for cracks swellings or other damages EMU36471 Check the fuel filter Check th...

Page 62: ... over the complete range of motion and each le ver should return completely to the idle po sition Look for loose or damaged connections of the throttle and shift cables EMU36483 Engine shut off cord lanyard Inspect the engine shut off cord and clip for damage such as cuts breaks and wear EMU40993 Engine oil 1 Place the outboard motor in a vertical position not tilted NOTICE If the out board motor ...

Page 63: ...y connected cooling water can leak out and the engine can overheat during oper ation ECM01801 EMU36955 Install top cowling 1 Be sure that the cowling lock lever is re leased 2 Be sure that the rubber seal is seated all the way around the top cowling 3 Place the top cowling on the bottom cowling 4 Check to be sure the rubber seal is seat ed correctly between the top cowling and the bottom cowling 5...

Page 64: ...nd tilt rod is pushed out completely 4 Check that the trim and tilt rod is free of corrosion or other flaws 5 Tilt the outboard motor down Check that the trim and tilt rod operates smoothly EMU36582 Battery Check that the battery is in good condition and fully charged Check that the battery connections are clean secure and covered by insulating covers The electrical contacts of the battery and cab...

Page 65: ...ition If you use a portable container to store and dispense fuel use only a locally approved GASOLINE container To prevent electrostatic sparks discharge any built up static electricity from your body before refueling 1 Turn the fuel hose counterclockwise from the fuel joint of the fuel tank to dis connect it 2 Turn the air vent screw clockwise to close it 3 Remove the fuel tank from the boat 4 To...

Page 66: ...emperature increases EWM02610 TIP Wipe up any spilled gasoline immediately with dry rags Dispose of rags properly according to local laws or regulations 8 Turn the fuel tank cap clockwise to tight en until a click is heard 9 Turn the air vent screw clockwise to close it 1 Pressure relief tab 2 Fuel tank cap 1 Pressure relief tab 2 Fuel tank cap Fuel tank capacity 25 L 6 60 US gal 5 50 Imp gal 1 2 ...

Page 67: ...es which contain carbon monoxide a col orless odorless gas which could cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cab in areas well ventilated Avoid blocking exhaust outlets EMU43172 Sending fuel portable tank 1 To loosen the air vent screw turn it counterclockwise until it stops 2 Remove the fuel joint cap on the out board motor 3 Ch...

Page 68: ...fuel hose and turn it clock wise to connect it securely 8 Wipe up any spilled gasoline immediate ly with dry rags TIP Dispose of rags properly according to local laws or regulations 9 When using the fuel tank on the boat a 3 Primer pump 4 Toward the fuel tank 1 Fuel joint 2 Groove 3 Protrusion 4 Fuel hose 1 Fuel hose 4 3 2 1 3 ZMU07453 1 ZMU07454 1 Fuel joint 2 Groove 3 Protrusion 4 Fuel hose 1 Fu...

Page 69: ...r is ejected Attach the engine shut off cord to a secure place on your cloth ing or your arm or leg while operating Do not attach the cord to clothing that could tear loose Do not route the cord where it could become entangled pre venting it from functioning Avoid accidentally pulling the cord dur ing normal operation Loss of engine power means the loss of most steering control Also without engine...

Page 70: ...ngine is cold it needs to be warmed up For further information see page 66 If the engine is warm and fails to start open the throttle slightly and try to start the engine again If the engine still fails to start see page 95 EMU27664 Electric start and remote control models WARNING EWM01840 Failure to attached engine shut off cord could result in a runaway boat if opera tor is ejected Attach the en...

Page 71: ...ain switch to on wait 10 seconds then crank the engine again ECM00192 TIP When the engine is cold it needs to be warmed up For further information see page 66 If the engine is warm and fails to start open the throttle slightly and try to start the engine again If the engine still fails to start see page 95 EMU36510 Checks after starting engine EMU36523 Cooling water Check for a steady flow of wate...

Page 72: ...l EMU36980 Stop switches Turn the main switch to or press the engine stop button and make sure the en gine stops Confirm that removing the clip from the en gine shut off switch stops the engine Confirm that the engine cannot be started with the clip removed from the engine shut off switch EMU33492 Shifting WARNING EWM00180 Before shifting make sure there are no swimmers or obstacles in the water n...

Page 73: ...slows to idle speed 2 After the engine is at idle speed in gear move the remote control lever gear shift lever firmly and crisply into the neu tral position EMU31742 Stopping boat WARNING EWM01510 Do not use the reverse function to slow down or stop the boat as it could cause you to lose control be ejected or im 6C1 9 3B 1E0 book 67 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 74: ...ariable trolling RPM switches can be adjusted approximately 50 r min with each press of a switch To increase the trolling speed press the switch To decrease the trolling speed press the switch TIP The trolling speed changes approximately 50 r min each time a switch is pressed If the trolling speed has been adjusted the engine returns to the normal trolling speed when the engine is stopped and rest...

Page 75: ...rning it coun terclockwise 5 Tighten the air vent screw by turning it clockwise 6 Remove the key if the boat will be left un attended TIP The engine can also be stopped by pulling the cord and removing the clip from the en gine shut off switch then turning the main switch to off 1 Fuel joint 2 Fuel hose 1 Fuel joint cap 2 1 ZMU07458 1 ZMU07459 1 Fuel joint 2 Fuel hose 1 Air vent screw 2 1 ZMU07443...

Page 76: ...in the boat sea conditions and running speed EMU27888 Adjusting trim angle Power trim and tilt WARNING EWM00753 Be sure all people are clear of the out board motor when adjusting the trim angle Body parts can be crushed be tween the motor and the clamp bracket when the motor is trimmed or tilted Use caution when trying a trim position for the first time Increase speed gradu ally and watch for any ...

Page 77: ...lane Bow Up Too much trim out puts the bow of the boat too high in the water Performance and econ omy 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 per formance further and the boat may por poise hop in the water which could throw the operator and passengers overboard Bow Down To...

Page 78: ... WARNING EWM00250 Leaking fuel is a fire hazard If there is a fuel joint on the outboard motor discon nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes Otherwise fuel may leak NOTICE ECM00241 Before tilting the outboard motor stop the engine by following the procedure on page 68 Never tilt the outboard mo tor while the engine is running Severe damag...

Page 79: ...nal support de vice to secure it in the tilt position For more detailed information see page 76 ECM01641 4 Models equipped with trim rods Once the outboard motor is supported with the tilt support lever press the power trim and tilt switch down to retract the trim rods NOTICE Make sure that the trim rods retracts completely during mooring This protects the rods from marine growth and corrosion whi...

Page 80: ... water NOTICE ECM00260 Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when set ting up for and cruising in shallow water Otherwise severe damage from overheat ing can result EMU32913 Procedure for power trim and tilt models 1 Place the remote control lever gear shift lever in neutral ZMU03644 DN ZMU01936 UP DN DN ZMU07921 6C1 9...

Page 81: ...witch and slowly tilt the out board motor down EMU35391 Cruising in other conditions Cruising in salt water After operating in salt water flush the cooling water passages with fresh water to prevent them from becoming clogged Also rinse the outside of the outboard motor with fresh wa ter Cruising in muddy turbid or acidic water Water in some areas can be acidic or with a lot of sediment in it such...

Page 82: ... joint cap Tighten the fuel tank cap and its air vent screw Store the fuel tank in a well ventilated place Store the fuel tank in a place that is stable and not exposed to shocks When the outboard motor is tilted prolonged time for mooring or trailering the boat make sure to follow the procedure listed below Disconnect the fuel hose from the fuel joint on the outboard motor and install the fuel jo...

Page 83: ... inlet NOTICE Do not run the engine without supplying it with cooling water Either the engine water pump will be damaged or the engine will be damaged from overheating Before starting the engine be sure to supply water to the cooling water passages Avoid running the out board motor at high speed while on the flushing attachment otherwise overheating could occur ECM02000 5 Cooling system flushing i...

Page 84: ...ith oil is recommended Contact your Yamaha dealer for information about fogging oil and procedures for your engine EMU30267 Cleaning and anticorrosion measures 1 Wash down the exterior of the outboard motor with fresh water and dry off com pletely NOTICE Do not spray water into the air intake ECM01840 For further information see page 79 2 Spray the outboard motor exterior with Yamaha Silicone Prot...

Page 85: ...connector is tightened securely on the fitting after flushing the en gine ECM00541 TIP When flushing the engine with the boat in the water tilting up the outboard motor un til it is completely out of the water will achieve better results For cooling system flushing instructions see page 76 EMU44340 Cleaning the outboard motor When cleaning the outboard motor the top cowling must be installed 1 Was...

Page 86: ...must be performed by an authorized Yamaha marine dealership A service manual is available for purchase through your Yamaha dealer for owners who have the mechanical skills tools and other equipment necessary to perform mainte nance not covered by this owner s manual EMU28511 Replacement parts If replacement parts are necessary use only genuine Yamaha parts or parts of equivalent design and quality...

Page 87: ...ushed with clean water after each use The symbol indicates the check ups which you may carry out yourself The symbol indicates work to be carried out by your Yamaha dealer Item Actions Initial Every 20 hours 3 months 100 hours 1 year 300 hours 3 years 500 hours 5 years Anode s external Inspection or replace ment as necessary Anode s cylinder head thermostat cover Inspection or replace ment as nece...

Page 88: ...tilt unit Inspection Propeller propeller nut cotter pin Inspection or replace ment as necessary Shift link shift cable Inspection adjustment or replacement as nec essary Spark plug s Inspection or replace ment as necessary Spark plug caps spark plug wires Inspection or replace ment as necessary Water from the cooling water pilot hole Inspection Throttle link throttle cable throttle pick up timing ...

Page 89: ... or replace ment as necessary Yamaha Meter gauge Inspection Fuel tank Yamaha por table tank Inspection and clean ing as necessary Item Actions Every 1000 hours Exhaust guide exhaust manifold Inspection or replace ment as necessary Timing belt Replacement Item Actions Initial Every 20 hours 3 months 100 hours 1 year 300 hours 3 years 500 hours 5 years 6C1 9 3B 1E0 book 83 ページ２０１２年１１月１９日月曜日午前１０時３...

Page 90: ...Maintenance 84 EMU28934 Greasing Yamaha marine grease Water resistant grease F50B T50B F60B T60B F70A ZMU07923 6C1 9 3B 1E0 book 84 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 91: ...to diagnose any problems yourself Instead take the outboard motor to a Yamaha dealer You should periodically re move and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode 1 Remove the spark plug caps from the spark plugs 2 Remove the spark plug If electrode ero sion becomes excessive or if carbon and other deposits are excessive you should re...

Page 92: ...e engine is running NOTICE ECM00490 This procedure must be performed while the outboard motor is in the water A flushing attachment or test tank can be used If the boat is not equipped with a tachometer for the outboard motor use a diagnostic ta chometer for this procedure Results may vary depending on whether testing is con ducted with the flushing attachment in a test tank or with the outboard m...

Page 93: ...u use an oil changer to change the engine oil If an oil changer is not available drain the engine oil by removing the drain screw If you are not familiar with the proce dure for changing the engine oil consult your Yamaha dealer 1 Put the outboard motor in an upright po sition not tilted NOTICE If the out board motor is not level the oil level indicated on the oil dipstick may not be accurate ECM0...

Page 94: ...ling the oil could cause leakage or damage If the oil level is above the upper level mark drain until the level meets the specified capacity ECM01850 9 Leave the outboard motor for 5 10 min utes 1 Drain screw 2 Gasket Drain screw tightening torque F50B 28 Nm 2 86 kgf m 20 7 ft lb F50HB 28 Nm 2 86 kgf m 20 7 ft lb F60B 28 Nm 2 86 kgf m 20 7 ft lb F60HB 28 Nm 2 86 kgf m 20 7 ft lb F70A 27 Nm 2 75 kg...

Page 95: ...your Yamaha dealer if the problem cannot be located and corrected ECM01622 14 Install the top cowling 15 Dispose of used oil according to local regulations TIP For more information on the disposal of used oil consult your Yamaha dealer Change the oil more often when operating the engine under adverse conditions such as extended trolling EMU29114 Inspecting wiring and connectors Inspect that each c...

Page 96: ...or dam age EMU30662 Removing propeller EMU29197 Spline models 1 Straighten the cotter pin and pull it out using a pair of pliers 2 Remove the propeller nut washer and spacer if equipped WARNING Do not use your hand to hold the propel ler when loosening the propeller nut EWM01890 3 Remove the propeller washer if equipped and thrust washer EMU30672 Installing propeller EMU29234 Spline models NOTICE ...

Page 97: ...r a stable stand You could be severely injured if the outboard motor falls on you Never get under the lower unit while it is tilted even when the tilt support lever or knob is locked Severe injury could occur if the outboard motor accidental ly falls 1 Tilt the outboard motor so that the gear oil drain screw is at the lowest point pos sible 2 Place a suitable container under the gear case 3 Remove...

Page 98: ...ible or pressurized fill ing device inject the gear oil into the gear oil drain screw hole 6 Put a new gasket on the oil level plug When the oil begins to flow out of the oil level plug hole insert and tighten the oil level plug Recommended gear oil Yamalube Marine Gearcase Lube or Hypoid gear oil Recommended gear oil grade SAE 90 API GL 4 Gear oil quantity F50B 0 430 L 0 455 US qt 0 378 Imp qt F5...

Page 99: ...internal anodes attached to the pow er unit EMU29323 Checking battery for electric start models WARNING EWM01902 Battery electrolyte is poisonous and caustic and batteries generate explosive hydrogen gas When working near the battery Wear protective eye gear and rubber gloves Do not smoke or bring any other source of ignition near the battery The procedure for checking the battery var ies for diff...

Page 100: ...n switch on applica ble models is off before working on the battery 2 Connect the red battery cable to the POSITIVE terminal first Then con nect the black battery cable to the NEG ATIVE terminal 3 The electrical contacts of the battery and cables must be clean and properly con nected or the battery will not start the engine EMU29371 Disconnecting the battery 1 Turn off the battery cut off switch i...

Page 101: ...ha dealer Q Is shift lever in gear A Shift to neutral Engine will not start starter operates Q Is fuel tank empty A Fill tank with clean fresh fuel Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is fuel filter clogged A Clean or replace filter Q Is starting procedure incorrect A See page 63 Q Has fuel pump malfunctioned A Have serviced by a Yamaha dealer Q Are spark plug s fou...

Page 102: ...r Q Is air vent screw on fuel tank closed A Open air vent screw Q Is choke knob pulled out A Return to home position Q Is motor angle too high A Return to normal operating position Q Is carburetor clogged A Have serviced by a Yamaha dealer Q Is fuel joint connection incorrect A Connect correctly Q Is throttle valve adjustment incorrect A Have serviced by a Yamaha dealer Q Is battery cable disconne...

Page 103: ... s Clean or replace with recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q Is fuel system obstructed A Check for pinched or kinked fuel line or other obstructions in fuel system Q Is fuel filter clogged A Clean or replace filter Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is spark plug gap incorrect A...

Page 104: ...441 Impact damage WARNING EWM00870 The outboard motor can be seriously damaged by a collision while operating or trailering Damage could make the out board motor unsafe to operate If the outboard motor hits an object in the wa ter follow the procedure below 1 Stop the engine immediately 2 Check the control system and all compo nents for damage Also check the boat for damage 3 Whether damage is fou...

Page 105: ...ilted manually 1 Loosen the manual valve screw by turn ing it counterclockwise until it stops 2 Put the engine in the desired position then tighten the manual valve screw by turning it clockwise 1 Fuse 20 A 3 30 A 2 Spare fuse 20 A 3 30 A 3 Fuse puller 1 Fuse 15 A 20 A 30 A 2 Spare fuse 15 A 20 A 30 A 3 2 1 1 2 ZMU07928 2 1 3 ZMU07093 3 Fuse puller 1 Fuse puller 1 Manual valve screw 1 ZMU04337 1 Z...

Page 106: ... or replacement could result in a fuel leak which could result in a fire or explosion hazard If the water separator alert indicator on the Command Link Multifunction Tachometer blinks perform the following procedure F50 T50 F60 T60 1 Stop the engine 2 Remove the top cowling 3 Remove the plastic tie 4 Disconnect the water detection switch coupler NOTICE Be careful not to get any water on the water ...

Page 107: ...ick is heard 9 Fasten the water detection switch lead with the plastic tie 10 Install the top cowling 11 Start the engine and make sure that the water separator alert indicator remains off Have a Yamaha dealer inspect the outboard motor after returning to port F70 1 Stop the engine 2 Remove the top cowling 3 Remove the cover 4 Remove the holder 1 Filter cup 2 Water detection switch lead 1 Water de...

Page 108: ... filter cup by soak ing it up with a rag 8 Firmly screw the filter cup onto the filter housing NOTICE Be careful not to twist the water detection switch lead when screwing the filter cup onto the filter housing ECM01970 9 Connect the water detection switch cou pler securely until a click is heard 10 Fasten the water detection switch lead with the holder 1 Holder 1 Water detection switch coupler 1 ...

Page 109: ...arm or leg while operating the boat Do not attach the cord to clothing that could tear loose Do not route the cord where it could become entangled pre venting it from functioning Avoid accidentally pulling the cord dur ing normal operation Loss of engine power means the loss of most steering control Also without engine power the boat could slow rapidly This could cause people and objects in the bo...

Page 110: ...n on the main switch 5 Insert the knotted end of the emergency starter rope into the notch in the flywheel rotor and wind the rope around the fly wheel several turns clockwise 6 Give a strong pull straight out to crank the engine Repeat if necessary WARNING Do not install the top cowling when engine is running EWM00621 ZMU07934 ZMU07935 ON START OFF ZMU01906 6C1 9 3B 1E0 book 104 ページ２０１２年１１月１９日月...

Page 111: ...rd motor is submerged immedi ately take it to a Yamaha dealer Otherwise some corrosion may begin almost immedi ately NOTICE Do not attempt to run the outboard motor until it has been com pletely inspected ECM00401 ZMU07099 6C1 9 3B 1E0 book 105 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Page 112: ...a Outboard Motor Dealer for assistance The local dealer will contact Yamaha on the owner s behalf so that needed repairs can be made as quickly as possible CUSTOMER S RESPONSIBILITY Under the terms of this warranty the customer will be responsible for ensuring that the outboard motor is properly operated maintained and stored as specified in the applicable Owner s Manual The owner of the outboard ...

Page 113: ...ransfer THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE PROVINCE TO PROVINCE YAMAHA MAKES NO OTHER WARRANTY OF ANY KIND EXPRESSED OR IMPLIED ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA AND EXCLUDED FR...

Page 114: ...country of residence If you are temporarily using a U S registered outboard motor in Canada or a Canada registered outboard motor in the United States and it needs warranty repairs you should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance The local dealer will contact Yamaha on the owner s behalf so that needed repairs can be made as quickly as possible 2 If you need repai...

Page 115: ...uine Yamaha Ac cessories will fit right and perform right right out of the box Yamalube Take care of your Yamaha with legendary Yamalube oils lubricants and care products They re formulated and approved by the toughest judges we know the Yamaha engineering teams that know your Yamaha from the inside out Genuine Yamaha Service Manuals Get the same factory manual for your vehicle that the technician...

Page 116: ...Printed on recycled paper Printed in Japan November 2012 2 8 1 6C1 9 3B 1E0 book 1 ページ２０１２年１１月１９日月曜日午前１０時３５分 ...

Search results

Summary of Contents for T-50

Reviews:

Related manuals for T-50

Brands by name

Popular brands

Yamaha T-50, Owner'S Manual

Search results

Summary of Contents for T-50

Reviews:

Related manuals for T-50

Brands by name

Popular brands