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Trouble Recovery

85

EMU38671

Troubleshooting

A problem in the fuel, compression, or ignition
systems can cause poor starting, loss of pow-
er, or other problems. This section describes
basic checks and possible remedies, and cov-
ers all Yamaha outboard motors. Therefore
some items may not apply to your model.
If your outboard motor requires repair, bring it
to your Yamaha dealer.
If the engine trouble-alert indicator is flashing,
consult your Yamaha dealer.

The Yamaha Security System does not op-
erate correctly.

Q. Is receiver within the communicating range
from the remote control transmitter?
A. Operate remote control transmitter within
the communicating range from the receiver.

Q. Is main switch “

” position?

A. Turn main switch to “

” position.

Q. Is communication obstructing objects such
as other source of communication machine or
metal close by?
A. Operate remote control transmitter away
from the other source of communication ma-
chine or metal.

Q. Is remote control transmitter registered?
A. Use remote control transmitter registered
with the receiver.

Q. Has the battery cell of the remote control
transmitter discharged?
A. Operate from spare remote control trans-
mitter or replace battery cell by a Yamaha
dealer.

Q. Are battery connections loose or corrod-
ed?

A. Tighten battery cables and clean battery
terminals.

Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of rec-
ommended capacity.

Starter will not operate.

Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of rec-
ommended capacity.

Q. Are battery connections loose or corrod-
ed?
A. Tighten battery cables and clean battery
terminals.

Q. Is fuse for electric start relay or electric cir-
cuit blown?
A. Check for cause of electric overload and
repair. Replace fuse with one of correct am-
perage.

Q. Are starter components faulty?
A. Have serviced by a Yamaha dealer.

Q. Is shift lever in gear?
A. Shift to neutral.

Engine will not start (starter operates).

Q. Is your Yamaha Security System in the
lock mode?
A. Set the security system to the unlock
mode. For further information, see page 19.

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.

U6D779E0.book Page 85 Tuesday, November 15, 2011 2:33 PM

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Summary of Contents for F100D

Page 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F80B F80C F100D 6D7 28199 79 E0 U6D779E0 book Page 1 Tuesday November 15 2011 2 33 PM ...

Page 2: ...arefully 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 U6D779E0 book Page 1 Tuesday November 15 2011 2 33 PM ...

Page 3: ...ncies between your machine and this manual If there is any question concerning this manual please con sult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the product and perform the specified periodic inspections and mainte nance by correctly following the instructions in the owner s manual Any damage resulting from neglect of these instructions is not cov ered by w...

Page 4: ...Mounting battery 11 Propeller selection 11 Start in gear protection 12 Engine oil requirements 12 Fuel requirements 13 Gasoline 13 Muddy or acidic water 14 Anti fouling paint 14 Motor disposal requirements 14 Emergency equipment 14 Components 15 Components diagram 15 Fuel tank 17 Fuel joint 17 Fuel gauge 18 Fuel tank cap 18 Air vent screw 18 Remote control transmitter 18 Receiver 19 Yamaha Securit...

Page 5: ...gine control system 39 Alert system 39 Overheat alert 39 Low oil pressure alert 39 Installation 41 Installation 41 Mounting the outboard motor 41 Operation 43 First time operation 43 Fill engine oil 43 Breaking in engine 43 Getting to know your boat 43 Checks before starting engine 43 Fuel level 43 Remove cowling 44 Fuel system 44 Controls 44 Engine shut off cord lanyard 45 Engine oil 45 Engine 46...

Page 6: ...art 1 71 Maintenance chart 2 73 Greasing 74 Cleaning and adjusting spark plug 76 Inspecting idle speed 76 Changing engine oil 77 Inspecting wiring and connectors 78 Checking propeller 79 Removing propeller 80 Installing propeller 80 Changing gear oil 81 Cleaning fuel tank 82 Inspecting and replacing anode s 83 Checking battery for electric start models 83 Connecting the battery 84 Disconnecting th...

Page 7: ...l times Be sure no one is in this area before operating the power trim and tilt mech anism The power trim and tilt switches operate even when the main switch is off Keep people be away from the switches whenever working around the motor Never get under the lower unit while it is tilted even when the tilt support lever is locked Se vere injury could occur if the outboard motor accidentally falls EM...

Page 8: ...dous boating condi tions 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 some one is in the water near the boat shift into neutral and stop the engine Stay away from swimming areas Swimmers can be hard to see The propeller can keep moving even when the motor is in neutral Stop the engine when a perso...

Page 9: ...re not sure that you can stop in time before hitting an obstacle apply throttle and turn in anoth er direction EMU33790 Weather Stay informed about the weather Check weather forecasts before boating Avoid boat ing in hazardous weather EMU33880 Passenger training Make sure at least one other passenger is trained to operate the boat in the event of an emergency EMU33890 Boating safety publications B...

Page 10: ...uipped 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 EMU37291 EC Declaration of Conformity DoC This outboard motor conforms to certain por tions of the European Parliament directive re lating to machinery Each conformed outboard motor accompa nied with EC DoC EC DoC...

Page 11: ...code Code of conformed directives EMU25205 CE Marking Outboard motors affixed with this CE mark ing conform with the directives of 98 37 EC 94 25 EC 2003 44 EC and 2004 108 EC 1 CE marking location ZMU06040 U6D779E0 book Page 5 Tuesday November 15 2011 2 33 PM ...

Page 12: ... any 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 F80B F80C F100D U6D779E0 book Page 6 Tuesday November 15 2011 2 33 PM ...

Page 13: ...ir 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 de vice 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 ZMU05706 ...

Page 14: ...ing Read Owner s Manual Hazard caused by continuous rotation Electrical hazard Remote control lever gear shift lever operat ing direction dual direction Engine start Engine cranking ZMU05696 ZMU05664 ZMU05665 ZMU05666 ZMU05667 ZMU05668 U6D779E0 book Page 8 Tuesday November 15 2011 2 33 PM ...

Page 15: ...DET 664 mm 26 1 in F80BET 664 mm 26 1 in F80CED 643 mm 25 3 in Dry weight AL L F100DET 172 kg 380 lb F80BET 172 kg 380 lb F80CED 179 kg 395 lb Dry weight AL X F100DET 178 kg 391 lb F80BET 178 kg 391 lb F80CED 185 kg 407 lb Performance Full throttle operating range 5000 6000 r min Rated power F100DET 73 6 kW 100 HP F80BET 58 8 kW 80 HP F80CED 58 8 kW 80 HP Idle speed in neutral 650 750 r min Engine...

Page 16: ...r oil quantity F100DET 0 670 L 0 708 US qt 0 590 Imp qt F80BET 0 670 L 0 708 US qt 0 590 Imp qt F80CED 0 760 L 0 803 US qt 0 669 Imp qt Tightening torque for engine Spark plug 25 Nm 2 55 kgf m 18 4 ft lb Propeller nut F100DET 35 Nm 3 57 kgf m 25 8 ft lb F80BET 35 Nm 3 57 kgf m 25 8 ft lb F80CED 55 Nm 5 61 kgf m 40 6 ft lb Engine oil drain bolt 28 Nm 2 86 kgf m 20 7 ft lb Engine oil filter 18 Nm 1 ...

Page 17: ...e control requirements WARNING EWM01580 If the engine starts in gear the boat can move suddenly and unexpectedly pos sibly causing a collision or throwing passengers overboard If the engine ever starts in gear the start in gear protection device is not working correctly and you should dis continue using the outboard Contact your Yamaha dealer The remote control unit must be equipped with a start i...

Page 18: ...ets the engine 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 79 EMU25761 Start in gear protection Yamaha outboard motors affixed with the pic tured label or Yamaha approved remote con trol units are equipped with start in gear ...

Page 19: ...anol blends containing more than 10 ethanol can cause fuel system damage or cause engine starting and running problems Yamaha does not recommend gasohol containing methanol because it can cause fuel system damage or engine performance problems It is recommended that you install a water separating marine fuel filter assembly 10 mi cron minimum between your boat s fuel tank and outboard motor when u...

Page 20: ...e boat bot tom can be coated with an anti fouling paint approved for your area to inhibit marine growth Do not use anti fouling paint which includes copper or graphite These paints can cause more rapid engine corrosion EMU36341 Motor disposal requirements Never illegally discard dump the motor Yamaha recommends consulting the dealer about discarding the motor EMU36352 Emergency equipment Keep the ...

Page 21: ...AMAHA set mode 11 12 15 16 13 14 1 Top cowling 2 Cowling lock lever s 3 Anti cavitation plate 4 Trim tab anode 5 Propeller 6 Cooling water inlet 7 Clamp bracket 8 Flushing device 9 Water separator 10 Power trim and tilt switch 11 Remote control box side mount type 12 Remote control transmitter 13 Receiver 14 Digital speedometer 15 Digital tachometer 16 Fuel tank U6D779E0 book Page 15 Tuesday Novem...

Page 22: ...Cowling lock lever s 3 Anti cavitation plate 4 Trim tab anode 5 Propeller 6 Cooling water inlet 7 Clamp bracket 8 Flushing device 9 Water separator 10 Tilt lock lever 11 Remote control box side mount type 12 Digital speedometer 13 Digital tachometer 14 Fuel tank U6D779E0 book Page 16 Tuesday November 15 2011 2 33 PM ...

Page 23: ...conform to relevant licensing or approval authority regula tions EMU25830 Fuel joint This joint is used to connect the fuel line 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 Square type 1 Fuel joint 2 Fuel gauge 3 Fuel tank cap 4 Air vent ...

Page 24: ...er away from high temperatures and do not place it in direct sunlight Do not drop the remote control transmit ter subject it to strong shocks or place any heavy items on it Use a soft dry cloth to clean the remote control transmitter Do not use deter gent alcohol or other chemicals Do not attempt to disassemble the re mote control transmitter yourself Other wise the transmitter may not operate pro...

Page 25: ...ed briefly the beeper sounds twice This indicates the unlock mode is selected and the engine can be started EMU26181 Remote control box The remote control lever actuates both the shifter and the throttle The electrical switches 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 lever back from neu...

Page 26: ... when the remote control lever is in neutral The remote control lever will operate only when the neutral 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 1 Neutral 2 Forward 3 Revers...

Page 27: ...n EMU25976 Throttle friction adjuster A friction device provides adjustable resis tance to movement of the throttle grip or the remote control lever and can be set accord ing to operator preference To increase resistance turn the adjuster clockwise To decrease resistance turn the adjuster counterclockwise WARNING Do not overtighten the friction adjuster If there is too much resistance it could be ...

Page 28: ... engine shut off cord to a secure place on your clothing 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 preventing it from functioning Avoid acci dentally pulling the cord during normal operation Loss of engine power means the loss of most steering control Also without engine power the boat could slo...

Page 29: ...nce An ad juster lever is located on the bottom of the tiller handle bracket To increase resistance turn the lever to the port side A To decrease resistance turn the lever to the starboard side B WARNING EWM00040 Do not overtighten the friction adjuster If there is too much resistance it could be difficult to steer which could result in an accident TIP Check the tiller handle for smooth move ment ...

Page 30: ...its current position For instructions on using the power trim and tilt switch see page 59 WARNING EWM01031 Use the power trim and tilt switch located on the bottom cowling only when the boat is at a complete stop with the engine off Attempting 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 wi...

Page 31: ... the steering control can be turned to either the right or left by applying the same amount of force If the boat tends to veer to the left port side turn the trim tab rear end to the port side A in the 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 fr...

Page 32: ...ICE ECM00660 Do not use the tilt support lever or knob when trailering the boat The outboard mo tor could shake loose from the tilt support and fall If the motor cannot be trailered in the normal running position use an addi tional support device to secure it in the tilt position EMU26384 Cowling lock lever pull up type To remove the engine top cowling pull up the cowling lock lever s and lift off...

Page 33: ...ill activate Activation of alert device The water separator alert indicator of 6Y8 Multifunction Tachometer will blink The buzzer will sound intermittently only when the gear shift is in neutral If the alert system has activated stop the engine and consult a Yamaha dealer imme diately EMU26304 Alert indicator If the engine develops a condition which is cause for alert the indicator lights up For d...

Page 34: ... light up For further information on reading the indicator see page 39 NOTICE ECM00052 Do not continue to run the engine if the overheat alert indicator is on Serious en gine damage will occur EMU31414 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 nor...

Page 35: ...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 ze ro The total number of hours the engine has been run cannot be reset EMU26524 Low o...

Page 36: ...itch 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 all segments are showing the fuel tank is full 1 Low...

Page 37: ...t 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 battery power The stored data will be lost if the bat tery is disconnected EMU26701 Clock To set the clock 1 Be sure...

Page 38: ...ber of hours is only measured when the engine is running When the main switch is turned on but the engine is not running the digital hour meter will display the hours run but will not add any additional time to the total EMU31653 6Y8 Multifunction meters Multifunction meters have 6 kinds of meter units tachometer unit square or round types speedometer unit square type speed fuel meter unit square ...

Page 39: ...o on After all the displays come on and the to tal hour display 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 imme diately 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 Bat...

Page 40: ...30 Low oil pressure alert If the engine oil pressure drops too low the low oil pressure alert indicator will start to blink and the engine speed will automatically decrease to about 2000 r min Stop the engine immediately if the buzzer sounds and the low oil pressure alert indicator blinks Check the engine oil quantity and re plenish oil if necessary If the alert device has ZMU06457 ZMU06458 ZMU064...

Page 41: ...has ac tivated Check the cooling water inlet for clog ging NOTICE ECM01592 Do not continue to run the engine if the overheat alert indicator blinks Serious engine 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 accu...

Page 42: ...e alert device has activated For charging the battery con sult your Yamaha dealer EMU36232 6Y8 Multifunction speed fuel meters The speed fuel meter unit shows the boat speed and has the functions of fuel meter to tal fuel consumption display fuel economy display fuel flow display and system voltage display The chosen display is selected by us ing the set and mode buttons as described in this secti...

Page 43: ...tions of fuel meter and system voltage display The chosen display is select ed by using the set and mode buttons as described in this section In addi tion the speedometer can show the desired unit of measurement such as km h mph or knots 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 dis play can be shown by conne...

Page 44: ...s play fuel economy display and remaining fuel display The chosen display is selected by using the set and mode buttons as described in this section For more information see the operation manual origi nally supplied with the meter After the main switch is first turned on all the displays come on as a test After a few sec onds the gauge will change to normal opera tion For more information see the ...

Page 45: ...rt 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 cooling water inlet is submerged Check the cooling water inlet for clogging EMU26857 Low oil pressure alert If the oil pressure drops too low the ale...

Page 46: ...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 U6D779E0 book Page 40 Tuesday November 15 2011 2 33 PM ...

Page 47: ... 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 ex cessive propeller slip and the water intakes for the cooling system may not get adequate water supply which can cause engine over heating If the engine is mounted too low wa ter resistance drag will increase thereby redu...

Page 48: ...f the outboard motor is operat ed continuously in the presence of air borne water spray enough water could enter the engine through the air intake opening in the top cowling to cause se vere engine damage Remove the cause of the airborne water spray U6D779E0 book Page 42 Tuesday November 15 2011 2 33 PM ...

Page 49: ...ling rough water and crowded areas 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 keeping the boat at a planing speed 3 Remaining 8 hours Run the engine at an...

Page 50: ... to operate EMU36451 Check for fuel leaks Check for fuel leaks or gasoline fumes in the boat Check for fuel leakage from the fuel system Check the fuel tank and fuel lines for cracks swellings or other damages EMU37322 Checking the fuel filter Check that the fuel filter is clean and free of water If any water is found in the fuel or if a significant amount of debris is found the fuel tank should b...

Page 51: ...053 Engine oil 1 Put the outboard motor in an upright po sition not tilted NOTICE If the motor is not level the oil level indicated on the dipstick may not be accurate ECM01790 2 Remove oil dipstick and wipe it clean 3 Insert the dipstick and remove it again Be sure to completely insert the dipstick into the dipstick guide otherwise the oil level measurement will be incorrect 4 Check the oil level...

Page 52: ... are re leased 2 Be sure that the rubber seal is seated all the way around the top cowling 3 Place the top cowling on bottom cowling 4 Check to be sure the rubber seal fits cor rectly all the way around the engine 5 Move the levers to lock the cowling as shown NOTICE If the top cowling is not installed correctly water spray un der the top cowling can damage the engine or the top cowling can blow o...

Page 53: ...by in sulating covers The electrical contacts of the battery and cables must be clean and proper ly connected or the battery will not start the engine Refer to the battery manufacturer s instruc tions for checks for your particular battery EMU27439 Filling fuel WARNING EWM01830 Gasoline and its vapors are highly flam mable and explosive Always refuel ac cording to this procedure to reduce the risk...

Page 54: ...ear you When the air vent screw is loosened gasoline vapor will be released Gaso line is highly flammable and its vapors are flammable and explosive Refrain from smoking and keep away from open flames and sparks while loosening the air vent screw This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which could cause brain damage or death when inhaled Symp toms in...

Page 55: ...ld become entangled preventing 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 boat to be thrown forward 1 If the lock mode of the Yamaha Security System is selected use the remote con trol transmitter to sele...

Page 56: ...e starts re lease the main switch and allow it to re turn to on NOTICE Never turn the main switch to start while the engine is running Do not keep the starter motor turning for more than 5 seconds If the starter mo tor is turned continuously for more than 5 seconds the battery will be quickly discharged thus making it im possible to start the engine The start er can also be damaged If the engine w...

Page 57: ...ystem is selected use the remote con trol transmitter to select the unlock mode Short beep will sound twice when unlock ing the Yamaha Security System For fur ther information see page 19 TIP If you lost track of the current security mode press the lock or unlock button to re set the security system The signal transmission range of the re mote control transmitter varies depending on the mounting p...

Page 58: ... A continuous flow of water from the pilot hole indicates that the water pump is pumping water through the cooling water passages If the cooling water passag es are frozen it may take a while for water to start flowing out of the pilot hole NOTICE ECM01810 If water is not flowing out of the pilot hole at all times while the engine is running overheating and serious damage could occur Stop the engi...

Page 59: ...NING EWM00180 Before shifting make sure there are no swimmers or obstacles in the water near you NOTICE ECM01610 Warm up the engine before shifting into gear Until the engine is warm the idle speed may be higher than normal High idle speed can prevent you from shifting back to neutral If this occurs stop the en gine shift to neutral then restart the en gine and allow it to warm up To shift out of ...

Page 60: ...lever firmly and crisply into the neutral po sition 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 impact the steering wheel or other parts of the boat This could increase the risk of se rious injury It could also damage the shift mechanism Do not shift into reverse while traveling at planing...

Page 61: ...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 restarted or when the engine speed exceeds approx imately 3000 r min EMU27821 Stopping engine Before stopping the engine first let it cool...

Page 62: ...moving the clip from the engine shut off switch then turning the main switch to off EMU27862 Trimming outboard motor WARNING EWM00740 Excessive trim for the operating condi tions either trim up or trim down can cause boat instability and can make steer ing the boat more difficult This increases the possibility of an accident If the boat begins to feel unstable or is hard to steer slow down and or ...

Page 63: ...o not adjust the trim angle with this switch while the boat is moving Adjust the outboard motor trim angle using the power trim and tilt switch To raise the bow trim out press the switch up To lower the bow trim in press the switch down Make test runs with the trim set to different an gles to find the position that works best for your boat and operating conditions EMU27892 Adjusting trim angle for...

Page 64: ... of the boat is up about 3 to 5 degrees With the bow up the boat may have a greater tenden cy to steer to one side or the other Compen sate for this as you steer When the bow of the boat is down it is easier to accelerate from a standing start onto plane 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 pu...

Page 65: ...and the clamp bracket 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 55 Never tilt the outboard mo tor while the engine is...

Page 66: ... support le ver or knob when trailering the boat The outboard motor could shake loose from the tilt support and fall If the motor cannot be trailered in the normal running position use an addi tional support device to secure it in the tilt position For more detailed in formation see page 66 ECM01641 EMU32724 Procedure for tilting up power trim and tilt models 1 Place the remote control lever gear ...

Page 67: ...lt unit or in the power tilt unit loses pres sure EWM00262 NOTICE Do not use the tilt support lever or knob when traile ring the boat The outboard motor could shake loose from the tilt support and fall If the motor cannot be trail ered in the normal running position use an additional support device to secure it in the tilt position For more detailed information see page 66 ECM01641 4 Models equipp...

Page 68: ...the outboard motor up slightly and pull out the tilt support knob or return the tilt support lever 3 Slowly tilt the outboard motor down 4 Place the tilt lock lever in the lock posi tion EMU33121 Procedure for tilting down power trim and tilt models 1 Push the power trim and tilt switch up until the outboard motor is supported by the tilt rod and the tilt support lever be comes free 2 Release the ...

Page 69: ...lift out of the water increasing the chance of acci dent and personal injury 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 EMU28175 Procedure for hydro tilt models 1 Place the remote control lever gear shift ...

Page 70: ... 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 2 Slightly tilt the outboard motor up to the desired position using the power trim and tilt switch WARN...

Page 71: ...Also rinse the outside of the outboard motor with fresh wa ter Cruising in muddy turbid or acidic water Yamaha strongly recommends that you use the optional chromium plated water pump kit see page 14 if you use the outboard motor in acidic water or water with a lot of sediment in it such as muddy or turbid cloudy water Af ter operating in such water flush the cooling passages with fresh water to p...

Page 72: ...rom the outboard motor Tighten the fuel tank cap and its air vent screw When the outboard motor is tilted pro longed time for mooring or trailering the boat disconnect the fuel line from the out board motor Tighten the fuel tank cap and its air vent screw The outboard motor should be transported and stored in the normal running position If there is insufficient road clearance in this po sition the...

Page 73: ...herwise over heating could occur ECM02000 5 Cooling system flushing is essential to prevent the cooling system from clogging up with salt sand or dirt In addition fog ging lubricating the engine is mandatory to prevent excessive engine damage due to rust Perform the flushing and fogging at the same time WARNING Do not touch or remove electrical parts when starting or during operation Keep hands ha...

Page 74: ... spark plug s and torque to proper specification For information on spark plug installation see page 76 2 Change the gear oil For instructions see page 81 Inspect the oil for the presence of water that indicates a leaky seal Seal replacement should be performed by an authorized Yamaha dealer prior to use 3 Grease all grease fittings For further de tails see page 74 TIP For long term storage foggin...

Page 75: ...l leak out of the connector instead of cooling the en gine which can cause serious over heating Be sure the connector is tightened securely on the fitting after flushing the engine ECM00541 TIP When flushing the engine with the boat in the water tilting up the outboard motor until it is completely out of the water will achieve better results For cooling system flushing instructions see page 66 EMU...

Page 76: ...ement parts are necessary use only genuine Yamaha parts or parts of equivalent design and quality Any part of inferior quality may malfunction and the resulting loss of control could endanger the operator and pas sengers Yamaha genuine parts and acces sories are available from your Yamaha dealer EMU34151 Severe operating conditions Severe operating conditions involve one or more of the following t...

Page 77: ...e 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 cov er Inspection or replace ment as necessary Anodes exhaust cover cooling wate...

Page 78: ...ssary PCV Pressure Con trol Valve 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 ca ble throttle pick up tim ing Inspection adjustmen...

Page 79: ... 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 U6D779E0 book Page 73 Tuesday November 15 2011 2 33 PM ...

Page 80: ...tenance 74 EMU28943 Greasing Yamaha grease A water resistant grease Yamaha grease D corrosion resistant grease for propeller shaft F80B F100D ZMU04266 U6D779E0 book Page 74 Tuesday November 15 2011 2 33 PM ...

Page 81: ...Maintenance 75 F80C U6D779E0 book Page 75 Tuesday November 15 2011 2 33 PM ...

Page 82: ...r A damaged insulator could allow exter nal sparks which could lead to explo sion or fire EWM00561 3 Be sure to use the specified spark plug otherwise the engine may not operate properly Before fitting the spark plug measure the electrode gap with a wire thickness gauge replace it if out of spec ification 4 When fitting the plug wipe off any dirt from the threads and then screw it in to the correc...

Page 83: ... ECM01710 Change the engine oil after the first 20 hours of operation or 3 months and every 100 hours or at 1 year intervals thereafter Otherwise the engine will wear quickly The engine oil should be extracted with an oil changer 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 ECM...

Page 84: ... cause Continued operation with a problem could cause severe engine damage Consult your Yamaha dealer if the problem cannot be located and corrected ECM01622 12 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 EMU29...

Page 85: ...itch if your boat has one Do not use your hand to hold the propeller when loosening or tightening the propeller nut Put a wood block between the anti cavi tation plate and the propeller to prevent the propeller from turning Checkpoints Check each of the propeller blades for ero sion from cavitation or ventilation or other damage Check the propeller shaft for damage Check the splines for wear or da...

Page 86: ...shaft NOTICE Make sure to install the thrust washer before installing the propeller Other wise the lower case and propeller boss could be damaged ECM01881 3 Install the spacer if equipped and the washer Tighten the propeller nut to the specified torque 4 Align the propeller nut with the propeller shaft hole Insert a new cotter pin in the hole and bend the cotter pin ends NOTICE Do not reuse the co...

Page 87: ...quipped remove all metal particles from the screw before installing it Always use new gaskets Do not reuse the removed gaskets 4 Remove the oil level plug and gasket to allow the oil to drain completely NOTICE Check the used gear oil after it has been drained If the gear oil is milky or contains water or a large amount of metal particles the gear case may be damaged Have a Yamaha dealer check and ...

Page 88: ... Wipe up any spilled fuel immediately Reassemble the fuel tank carefully Im proper assembly can result in a fuel leak which could result in a fire or ex plosion hazard Dispose of old gasoline according to lo cal regulations 1 Empty the fuel tank into an approved con tainer 2 Pour a small amount of suitable solvent into the tank Install the cap and shake the tank Drain the solvent completely 3 Remo...

Page 89: ...ed to the power unit EMU29323 Checking battery for electric start models WARNING EWM01902 Battery electrolyte is poisonous and caus tic and batteries generate explosive hy drogen 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 varies for different batteries This p...

Page 90: ...VE terminal first Then con nect the black battery cable to the NEGA TIVE terminal 3 The electrical contacts of the battery and cables must be clean and properly con nected or the battery will not start the en gine EMU29371 Disconnecting the battery 1 Turn off the battery cut off switch if equipped and main switch NOTICE If they are left on the electrical system can be damaged ECM01930 2 Disconnect...

Page 91: ...stered with the receiver Q Has the battery cell of the remote control transmitter discharged A Operate from spare remote control trans mitter or replace battery cell by a Yamaha dealer Q Are battery connections loose or corrod ed A Tighten battery cables and clean battery terminals Q Is battery capacity weak or low A Check battery condition Use battery of rec ommended capacity Starter will not ope...

Page 92: ... replace with recommended type Q Is fuel system obstructed A Check for pinched or kinked fuel line or oth er obstructions in fuel system Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is fuel filter clogged A Clean or replace filter Q Have ignition parts failed A Have serviced by a Yamaha dealer Q Has alert system activated A Find and correct cause of alert Q Is spark plug gap...

Page 93: ... water in fuel filter cup A Drain filter cup Engine power loss Q Is propeller damaged A Have propeller repaired or replaced Q Is propeller pitch or diameter incorrect A Install correct propeller to operate outboard at its recommended speed r min range Q Is trim angle incorrect A Adjust trim angle to achieve most efficient operation Q Is motor mounted at incorrect height on transom A Have motor adj...

Page 94: ...with rec ommended type Q Is engine not responding properly to shift lever position A Have serviced by a Yamaha dealer Engine vibrates excessively Q Is propeller damaged A Have propeller repaired or replaced Q Is propeller shaft damaged A Have serviced by a Yamaha dealer Q Are weeds or other foreign matter tangled on propeller A Remove and clean propeller Q Is motor mounting bolt loose A Tighten bo...

Page 95: ...er trim and tilt because of a dis charged battery or a failure with the power trim and tilt unit the engine can be tilted man ually 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 EMU37580 Water separator alert indicator blinks while cruising WARNING EWM01500 Gasoline...

Page 96: ...e water separator alert indicator on the 6Y8 Multifunction tachometer blinks perform the following procedure 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 detection switch coupler otherwise a malfunc tion could occur ECM01950 5 Unscrew the filter cup from the filter hous ing NO...

Page 97: ...returning to port EMU29542 Starter will not operate If the starter mechanism does not operate the engine cannot be cranked with the start er the engine can be started manually with an emergency starter rope However the en gine cannot be started manually if the battery voltage is low If the battery is discharged to 9 volts or below the electric fuel pump will not operate WARNING EWM01022 Use this p...

Page 98: ...hing and other objects away when starting the en gine Use the emergency starter rope only as instructed Do not touch the fly wheel or other moving parts when the engine is running Do not install the starter mechanism or top cowling after the engine is running Do not touch the ignition coil spark plug wire spark plug cap or other electrical components when starting or operating the motor You could ...

Page 99: ...op cowling when engine is running EWM00621 TIP The engine can be started only when the Yamaha Security System is in the unlock mode EMU33501 Treatment of submerged motor If the outboard motor is submerged immedi ately take it to a Yamaha dealer Otherwise some corrosion may begin almost immediate ly NOTICE Do not attempt to run the out board motor until it has been completely inspected ECM00401 ZMU...

Page 100: ...Printed on recycled paper Printed in Japan December 2011 1 1 1 CR U6D779E0 book Page 1 Tuesday November 15 2011 2 33 PM ...

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