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Trouble Recovery

88

EMU48434

Troubleshooting

This section describes the likely causes and remedies for problems, such as those in the fuel,
compression, and ignition systems, poor starting, and loss of power. Please note that all of
the items in this section may not apply to your model.
If your outboard motor requires repair, bring it to a Yamaha dealer.
If the engine trouble-alert indicator is blinking, consult your Yamaha dealer.

Trouble

Starter will not operate.

Item

Question

Answer

DEC alert indica-
tor

Does the DEC alert indicator come on
in orange?

Have serviced by a Yamaha dealer.

Control lever

Is control lever in gear?

Shift to neutral.

Battery

Is battery capacity low or weak?

Check battery condition. Use battery
of recommended capacity.

Are battery connections corroded or
loose?

Tighten battery cables and clean bat-
tery terminals.

Fuse

Is fuse for starter relay or electric cir-
cuit blown?

Check for cause of electric overload
and repair. Replace fuse with one of
correct amperage.

Starter

Are starter components malfunction-
ing?

Have serviced by a Yamaha dealer.

Trouble

Engine will not start (starter operates).

Item

Question

Answer

Engine shut-off
cord (lanyard)

Is clip on engine shut-off cord (lan-
yard) installed?

Install clip to engine shut-off switch.

Fuel tank

Is fuel tank empty?

Fill tank with clean, fresh fuel.

Fuel

Is fuel contaminated or stale?

Fill tank with clean, fresh fuel.

Fuel filter

Is fuel filter clogged?

Clean or replace fuel filter.

Fuel pump

Is fuel pump malfunctioning?

Have serviced by a Yamaha dealer.

Spark plugs

Are spark plugs fouled or of incorrect
type?

Inspect spark plugs. Clean or replace
with recommended type.

Ignition parts

Are ignition parts malfunctioning?

Have serviced by a Yamaha dealer.

Ignition wiring

Is ignition wiring damaged or poorly
connected?

Inspect wires for breaks and wear.
Have connections tightened and bro-
ken or worn wires replaced by a
Yamaha dealer.

Engine inner parts

Are engine inner parts damaged?

Have serviced by a Yamaha dealer.

U6KNK0E0.book Page 88 Monday, November 7, 2022 10:23 AM

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Содержание F400A

Страница 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F400A FL400A F450A FL450A 6KN 28199 K0 E0 U6KNK0E0 book Page 1 Monday November 7 2022 10 23 AM ...

Страница 2: ...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 U6KNK0E0 book Page 1 Monday November 7 2022 10 23 AM ...

Страница 3: ...r machine and this manual If there is any question concerning this manual 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 by warranty Some count...

Страница 4: ...t horsepower rating 12 Mounting outboard motor 12 Digital electronic control requirements 12 Battery requirements 13 Battery specifications 13 Propeller selection 14 Counter rotation models 14 Start in gear protection 14 Engine oil requirements 15 Fuel requirements 15 Gasoline 15 Anti fouling paint 16 Outboard motor disposal requirements 16 Emergency equipment 16 Emission control information 16 U ...

Страница 5: ... 52 Warming up engine 52 Procedure for warming up engine 52 Checks after engine warm up 53 Shifting 53 Stop switches 53 Shifting 53 Neutral hold switch operation 54 Center engine switch operation 54 Single lever switch operation 55 Stopping boat 56 Boat direction 57 Stopping engine 59 Procedure for stopping engine 6X6 switch 59 Trimming outboard motor 59 Adjusting trim angle Power trim and tilt 60...

Страница 6: ...lectric start models 84 Connecting the battery 84 Disconnecting the battery 86 Trouble Recovery 88 Troubleshooting 88 Temporary action in emergency 91 Impact damage 91 Running in an emergency twin engines or triple engines 91 Replacing fuse 92 Power trim and tilt will not operate 93 Steer by wire system will not operate 93 Water separator alert is activated after leaving port 94 Treatment of subme...

Страница 7: ...trocution EMU33662 Power trim and tilt Body parts can be crushed between the mo tor and the clamp bracket 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 people away from the switches whenever working arou...

Страница 8: ...ld follow when boating EMU33711 Alcohol and drugs Never operate after drinking alcohol or taking drugs Intoxication is one of the most com mon factors contributing to boating fatalities EMU40281 Personal flotation devices PFDs Have an approved PFD on board for every occupant Yamaha recommends that you must wear a PFD whenever boating At a mi nimum children and non swimmers should always wear PFDs ...

Страница 9: ...ision Take early action to avoid collisions Re member boats do not have brakes and stopping the engine or reducing throttle can reduce the ability to steer If you are not sure that you can stop in time before hitting an obstacle apply throttle and turn in an other direction EMU48100 Collisions with floating or submerged objects If the outboard motor hits a floating object or an obstacle in the wat...

Страница 10: ... emergency EMU33891 Boating safety publications Be informed about boating safety Additional publications and information can be obtained from many boating organizations EMU33602 Laws and regulations Know the marine laws and regulations where you will be boating and obey them Several sets of rules prevail according to geographic location but all are basically the same as the International Rules of ...

Страница 11: ...space provided for refer ence in case that you need a new key EMU38984 EC Declaration of Conformity DoC This declaration is included with outboard motors that conform to European regula tions 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 contains the fol lowing information ...

Страница 12: ... conform to the regulations for each country This label is affixed to the clamp bracket or swivel bracket Regulatory Compliance Mark RCM Engines affixed with this mark conform to certain portion s of the Australian Radio Communications Act ICES 002 Compliance Label Engines affixed with this mark meet all re quirements of the Canadian Interference Causing Equipment Regulations 1 CE marking location...

Страница 13: ...Read 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 EMU33836 Warning labels If these labels are damaged or missing contact your Yamaha dealer for replacements 3 2 4 1 U6KNK0E0 book Page 7 Monday November 7 2022 10 23 AM ...

Страница 14: ...res sure 2 Remove band from fuel nipple 3 Open drain cap to drain the fuel from VST 6EE G2794 40 6EE H1994 40 1 3 2 6EE G2794 50 6EE H1994 50 1 2 3 WARNING Vapor separator tank VST contains pressurized fuel To reduce the risk of spraying fuel during VST service 1 Wrap fuel hose connector in a cloth then disconnect hose slowly to release pressure 2 Remove band from fuel nipple 3 Open drain cap to d...

Страница 15: ...nsors and recorded data will vary by model the main data points are Engine status and engine performance data This data will be uploaded only when a spe cial Yamaha diagnostic tool is attached to the engine such as when maintenance checks or service procedures are performed Yamaha will not disclose this data to a third party except in the following cases In addi tion Yamaha may provide engine data...

Страница 16: ...e provided and Yamaha will appropriately manage the data With the consent of the boat owner Where obligated by law For use by Yamaha in litigation For general Yamaha conducted research purposes when the data is not related to an individual engine or owner U6KNK0E0 book Page 10 Monday November 7 2022 10 23 AM ...

Страница 17: ...50 r min Power unit Type 4 stroke DOHC V8 32 valves Total displacement 5559 cm 339 2 c i Bore stroke 96 0 96 0 mm 3 78 3 78 in Ignition system TCI Spark plug NGK ILMAR7H 9 Spark plug gap 0 8 0 9 mm 0 031 0 035 in Steering system Remote steering Starting system Electric starter Starting carburetion system Fuel injection Valve clearance IN cold engine 0 17 0 24 mm 0 0067 0 0094 in Valve clearance EX...

Страница 18: ...und pressure level ICOMIA 39 94 83 1 dB A EMU33556 Installation requirements EMU33566 Boat horsepower rating EWM01561 Overpowering a boat can cause severe in stability Before installing the outboard motor s con firm that the total horsepower of your out board motor s does not exceed the boat s maximum horsepower rating See the boat s capacity plate or contact the manufacturer EMU40491 Mounting out...

Страница 19: ...quirements EMU44881 Battery specifications For U S insular areas It is necessary to meet only two of the three specifications CCA MCA and RC in one of the following combinations CCA SAE and RC MCA ABYC and RC For Others The engine cannot be started if battery volt age is too low EMU36293 Mounting battery Mount the battery holder securely in a dry well ventilated vibration free location in the boat...

Страница 20: ... loads Yamaha recommends to use a propeller suit able for the Shift Dampener System SDS For further information consult your Yamaha dealer To check the propeller see page 80 Propeller example EMU36313 Counter rotation models Standard outboard motors rotate clockwise Counter rotation models rotate counterclock wise and are typically used in multiple motor setups On counter rotation models be sure t...

Страница 21: ...n the fuel tank Contaminated fuel can cause poor performance or engine dam age Use only fresh gasoline that has been stored in clean containers Gasohol There are two types of gasohol gasohol con taining ethanol E10 and that containing methanol Ethanol can be used if the ethanol Recommended engine oil YAMALUBE 4 or 4 stroke outboard motor oil Recommended engine oil grade 1 SAE 10W 30 10W 40 5W 30 A...

Страница 22: ...e following items onboard in case there is trouble with the outboard motor A tool kit with assorted screwdrivers pliers wrenches including metric sizes and electrical tape Waterproof flashlight with extra batteries An extra engine shut off cord lanyard with clip Spare parts such as an extra set of spark plugs Consult your Yamaha dealer for details EMU25223 Emission control information EMU25311 U S...

Страница 23: ...luded as standard equipment on all models order from dealer 1 2 3 4 5 6 2 7 4 9 8 2 5 1 Top cowling 2 Cowling lock lever 3 Anti cavitation plate 4 Cooling water inlet 5 Anode 6 Power trim and tilt unit 7 Clamp bracket 8 Idle hole 9 Propeller U6KNK0E0 book Page 17 Monday November 7 2022 10 23 AM ...

Страница 24: ...Components 18 2 1 3 4 5 6 1 Oil dipstick 2 Oil filler cap 3 Fuse box 4 Fuel filter 5 Power trim and tilt switch 6 Flushing device U6KNK0E0 book Page 18 Monday November 7 2022 10 23 AM ...

Страница 25: ...r single engine boats 1 1 CL5 Display HEADING HOLD COURSE HOLD TRACK POINT PATTERN STEER F1 F2 1 5 1 5 1 2 3 4 5 6 1 Digital electronic control 2 Switch panel 3 Start Stop switch panel sub station 4 Engine shut off switch panel sub station 5 Joystick upgradable 6 Autopilot upgradable U6KNK0E0 book Page 19 Monday November 7 2022 10 23 AM ...

Страница 26: ...ERN STEER F1 F2 1 5 1 5 1 2 3 7 4 5 6 1 Digital electronic control 2 Switch panel 3 Start Stop switch panel 4 All Start Stop switch panel 5 Engine shut off switch panel sub station 6 Joystick upgradable 7 Autopilot upgradable U6KNK0E0 book Page 20 Monday November 7 2022 10 23 AM ...

Страница 27: ...TERN STEER F1 F2 1 5 1 5 1 2 3 6 7 4 5 1 Digital electronic control 2 Switch panel 3 Start Stop switch panel 4 All Start Stop switch panel 5 Engine shut off switch panel sub station 6 Joystick upgradable 7 Autopilot upgradable U6KNK0E0 book Page 21 Monday November 7 2022 10 23 AM ...

Страница 28: ... Digital electronic control The digital electronic control actuates the shifter throttle and remote electrical opera tions Make sure that the digital electronic control alert indicator lights in blue and that the digital electronic control unit is correctly connected to the outboard motor The digital electronic controls of the main station and sub station have the same functions TIP This manual ma...

Страница 29: ...peration manual EMU48480 Power trim and tilt switches Pushing the switch up trims the out board motor up and then tilts it up Pushing the switch down tilts the outboard mo tor down and trims it down When the switch is released the outboard motor will stop in its current position 1 Control lever 2 SINGLE LEVER switch 3 CENTER ENGINE switch triple engines 4 NEUTRAL HOLD switch 5 STATION switch 6 DEC...

Страница 30: ...ds repeated ly on and off to alert the operator For more information consult your Yamaha dealer Single engine Twin engines Triple engines EMU48503 Speed control switch There are two modes for keeping the engine speed and speed Pressing the up down switch enables you to keep the engine speed or to adjust the speed 1 Power trim and tilt switch 1 Power trim and tilt switch all engines 2 Power trim an...

Страница 31: ...gines Triple engines EMU48531 Station selector switch The STATION switch can select either the main station or sub station for operating the boat The STATION switch can be used when the control lever is in the neutral position The LED for the operating seat that can oper ate the boat comes on TIP Even the not selected station can start and stop the engine The LED blinks 3 times if station selectio...

Страница 32: ...ultiple engines when the SINGLE LE VER switch is pressed the buzzer will sound the LED will come on and the port side control lever will allow you to perform shift and throttle operations for all outboard motors that have been started For further in formation see page 55 TIP When the single lever switch is activated the starboard control lever is inoperable You must start all the engines to enable...

Страница 33: ...e When the key is released it returns automatically to the on position Single engine Twin engines Triple engines EMU42082 Start Stop switch panel The engine can be started or turned off by pressing the Start Stop button For twin and triple type it is possible to start or turn off in dividual engine The indicator for the corre sponding engine will come on PORT Port side engine CENTER Center engine ...

Страница 34: ...g normal operation Loss of engine power means the loss of most steering control Also without engine power the boat could slow rapidly This could cau se people and objects in the boat to be thrown forward TIP The engine cannot be started with the clip re moved EMU48651 Outboard motor equipment EMU26156 Power trim and tilt switch on bottom cowling The power trim and tilt switch is located on the sid...

Страница 35: ...for power trim and tilt model To keep the outboard motor in the tilted up position lock the tilt support lever to the clamp bracket Make sure that the lever is se curely held in place by the bolts TIP To use the lower tilted up position remove the upper bolts ECM00661 Do not use the tilt support lever or knob when trailering the boat The outboard motor could shake loose from the tilt sup port and ...

Страница 36: ...hing device see page 70 EMU41312 Fuel filter The fuel filter functions to remove foreign ma terial and separate water from the fuel If wa ter separated from the fuel exceeds a specific volume the alert system will activate For fur ther information see page 36 1 Cowling lock lever 1 Cowling lock lever 1 Flushing device 1 1 1 1 1 Fuel filter 1 U6KNK0E0 book Page 30 Monday November 7 2022 10 23 AM ...

Страница 37: ...on icons Orange icons indicate engine conditions Yamaha Security System indicator optional This indicator appears when the Yamaha Security System is in lock mode Make sure it is off before starting the engine TIP This function is displayed when the 6X6 switch panel is equipped Engine warm up indicator This indicator appears while the engine is being warmed up and goes off when warming up is finish...

Страница 38: ...links Serious engine damage will occur Do not continue to operate the engine if an alert device has activated Consult your Yamaha dealer if the problem can not be located and corrected Low oil pressure alert If the engine oil pressure drops too low this alert will be activated Stop the engine im mediately Check the engine oil level and replenish oil if necessary If the alert device has activated w...

Страница 39: ...ly To charge the battery consult your Yamaha dealer Check engine alert If the engine malfunctions while cruising this alert will be activated Return to port and consult a Yamaha dealer immediately Check System Steering Malfunction Alert If a malfunction occurs in the system the system alert will be activated Return to port immediately and contact your Yamaha dealer U6KNK0E0 book Page 33 Monday Nov...

Страница 40: ...otor occur the DEC alert indicator will change from blue to orange Even if there is no symp tom of trouble with shifting or throttle get back to port soon and have a Yamaha dealer inspect or repair the outboard motor EMU47384 Overheat alert This outboard motor has an overheat alert system If the engine temperature rises too high the alert system will activate The engine speed will automatically de...

Страница 41: ...erheating 1 Stop the overheated engine TIP If the alert system has activated stop the en gine and tilt the outboard motor up to check the cooling water inlets for clogging 2 If the alert system is still activated tilt the overheated outboard motor up and re turn to port EMU47395 Low oil pressure alert If the oil pressure drops too low the alert sys tem will activate The engine speed will automatic...

Страница 42: ...d To turn off the alert activation on the out board motors not affected by the low oil pres sure Stop the engine that has the low oil pressure EMU47403 Water separator alert The outboard motor is equipped with a water separator alert system If water separated from the fuel exceeds a specific volume the alert system will activate The water separator alert indicator will come on or blink The pop up ...

Страница 43: ... the buzzer will stop when the en gine is started and the control lever is moved to the forward or reverse position do not use the outboard motor Otherwise serious engine damage could occur U6KNK0E0 book Page 37 Monday November 7 2022 10 23 AM ...

Страница 44: ... motor should be mounted so that the boat is well balanced Otherwise the boat could be hard to steer For single engine boats mount the outboard motor on the cen terline keel line of the boat For twin engine boats mount the outboard motors equidistant from the centerline For triple engine boats mount the center out board motor on the centerline keel line and the port side and starboard side outboar...

Страница 45: ...on determining the proper mounting height ECM01635 Make sure that the idle hole is high enough to prevent water from entering the engine even if the boat is stationary with the maximum load Incorrect engine height or obstructions to the smooth flow of water such as the design or condition of the boat or ac cessories such as transom ladders or depth finder transducers can create air borne water spr...

Страница 46: ... severe engine damage ECM00802 EMU41223 Procedure for breaking in engine Your new engine requires a period of 10 hours break in so that mating surfaces of moving parts wear in evenly Operate the engine in the water under load in gear with a propeller installed for 10 hours as follows When breaking in the engine avoid extended idling rough water and crowded areas 1 For the 1st hour of operation Ope...

Страница 47: ... trip A good rule is to use 1 3 of your fuel to get to the destination 1 3 to return and to keep 1 3 as an emergency reserve With the boat level on a trailer or in the water turn the key to on and check the fuel level For fuel filling in structions see page 46 EMU47580 Removing top cowling For the following checks in this chapter re move the top cowling To remove the top cowling 1 Pull the cowling...

Страница 48: ...el 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 damage EMU37323 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 be checked and cleaned by a Yamaha dealer EMU47812 Cont...

Страница 49: ...ated on the oil dipstick may not be accurate ECM01862 2 Remove the oil dipstick and wipe it clean 3 Insert the oil dipstick completely and re move it again 4 Check that the oil level on the oil dipstick is between the upper and lower marks Consult your Yamaha dealer if the oil lev el is not at the proper level or if it appears milky or dirty EMU40412 Outboard motor Check that the outboard motor is...

Страница 50: ...or damage If the rubber seal is damaged have it replaced by a Yamaha dealer 2 Check that the rubber seal is seated all the way around the aprons 3 Check that all of the cowling lock levers are pulled outward and turned upward 4 Place the top cowling on the aprons 5 Turn the cowling lock levers downward and then push them inward to secure the top cowling 1 Garden hose connector cap 1 Rubber seal 2 ...

Страница 51: ...utboard mo tor before performing this check 1 Check the power trim and tilt unit for any sign of oil leaks 2 Operate each of the power trim and tilt switches on the digital electronic control and engine bottom cowling if equipped to check that all switches work 3 Tilt the outboard motor up and check that the tilt rod and trim rods are extend ed completely 4 Use the tilt support lever to lock the m...

Страница 52: ...le and explosive Always refuel ac cording to this procedure to reduce the risk of fire and explosion Gasoline is poisonous and can cause in jury or death Handle gasoline with care Never siphon gasoline by mouth If you should swallow some gasoline or inhale a lot of gasoline vapor or get some gas oline in your eyes see your doctor im mediately If gasoline spills on your skin wash with soap and wate...

Страница 53: ...t or open the fuel valve 2 Squeeze the primer pump with the ar row pointing up until you feel it become firm EMU27496 Starting engine EWM01601 Before starting the engine make sure that the boat is tightly moored and that you can steer clear of any obstructions Be sure there are no swimmers in the water near you EMU41792 Start up checks Place the control lever in neutral and turn the main switch to...

Страница 54: ...the main switch to on and make sure that the DEC alert indicator comes on in blue The engine cannot be started if the DEC alert indicator comes on in orange 4 Turn the main switch to start and hold it for a maximum of 5 seconds 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 motor is turned continuo...

Страница 55: ...ain switch is turned to start with the clip removed from the en gine shut off switch the buzzer will sound Except the single type if the clip is not in stalled to the engine shut off switch the buzzer will sound when the Start Stop but ton is pressed Except the single type if one of the engines has started it can be stopped by pressing the Start Stop button on the All start Stop panel EMU48772 Pro...

Страница 56: ...starter motor is turned continuously for more than 5 seconds the battery will be quickly discharged thus making it impossible to start the engine The starter can also be dam aged If the engine will not start after 5 seconds of cranking return the main switch to on wait 10 seconds then crank the engine again ECM00193 TIP The sub station can start and stop the engine However it cannot operate the di...

Страница 57: ...vers have been set to neutral Make sure that the DEC alert indicator of the sub station comes on in blue TIP The main station can still start and stop the engine However it cannot operate the digital electronic control 4 Attach the engine shut off cord to a se cure place on your clothing or your arm or leg Then install the clip on the other end of the cord into the engine shut off switch 5 Press t...

Страница 58: ...ows from the cool ing water pilot hole ECM02251 If water is not flowing out of the cooling water pilot hole at all times while the en gine is running overheating and serious damage could occur Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked Consult your Yamaha dealer if the problem cannot be located and corrected EMU27671 Warmi...

Страница 59: ... before shifting into gear Until the engine is warm the idle speed may be higher than normal The control lever of the Digital electronic control can be operated even at high engine speeds However gear shifting will not work until the engine speed has automatically decreased to a speed at which actual gear shifting is possible As a re sult for quick gear shifting there could be a time lag when the ...

Страница 60: ...D will go off 3 You can perform normal forward or re verse operation EMU48711 Center engine switch operation TIP You cannot operate the starboard control lever when the single lever switch is acti vated You must start all the engines to enable the center engine To set 1 Place the control lever in neutral 2 When the CENTER ENGINE switch is pressed a beep will sound and the LED will come on 3 You ca...

Страница 61: ...switch is pressed a beep will sound and the LED will come on 3 The port side control lever will allow you to perform shift and throttle operations for all outboard motors that have been started To release 1 Place the control lever in neutral 2 When the SINGLE LEVER switch is pressed a beep will sound and the LED will go off 3 You can perform normal shift or throttle operations 1 Port side control ...

Страница 62: ...injury It could also damage the shift mechanism Do not shift into reverse while traveling at planing speeds Loss of control boat swamping or damage to the boat could occur The boat is not equipped with a separate braking system Water resistance stops it af ter the throttle lever is moved back to idle The stopping distance varies depending on gross weight water surface conditions and wind direction...

Страница 63: ...icate the boat direction when operating multiple outboard motors Lever operation Twin engines Lever operation Boat direction and turning force The size of the arrow is proportional to the turning force Propulsion U6KNK0E0 book Page 57 Monday November 7 2022 10 23 AM ...

Страница 64: ...on 58 Lever operation Triple engines Lever operation Boat direction and turning force The size of the arrow is proportional to the turning force Propulsion U6KNK0E0 book Page 58 Monday November 7 2022 10 23 AM ...

Страница 65: ...ch then turning the main switch to off 2 If the Start Stop button was pressed to stop the engine in step 1 turn the main switch to off 3 Remove the key if the boat will be left un attended Situations when stopping engine from sub station dual station models 1 Press the Start Stop button until the en gine stops completely 2 Turn the main switch to off on the main station TIP The engine can also be ...

Страница 66: ...the out board motor when adjusting the trim an gle Body parts can be crushed between 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 signs of instability or control problems Improper trim an gle can cause loss of control If equipped with a power trim and tilt switch located on...

Страница 67: ...ater 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 Too much trim in causes the boat to plow through the water decreasing fuel economy and making it hard to increase speed Oper ating with excessive trim in at higher...

Страница 68: ...rheating can re sult To prevent the cooling water passages from becoming frozen when the ambi ent temperature is 5 C 41 F or below tilt the outboard motor up after it has been stopped 30 seconds or more TIP When the PTT TotalTilt function is activated you can tilt the outboard motor up down au tomatically without keeping the PTT switch pressed For further information see page 65 EMU3550C Procedure...

Страница 69: ... 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 69 ECM01642 4 Once the outboard motor is supported with the tilt support lever press the pow er trim and tilt switch down to re tract the trim rods NOTICE Make sure that the trim rods retrac...

Страница 70: ...rd motor is support ed by the tilt rod and the tilt support lever becomes free 2 Release the tilt support lever 3 Push the power trim and tilt switch down to lower the outboard motor to the desired position 1 Trim rod 1 Tilt support lever 1 1 DN DN DN DN U6KNK0E0 book Page 64 Monday November 7 2022 10 23 AM ...

Страница 71: ...n the outboard mo tor is trimmed or tilted 1 Make sure that all the battery switches are turned on before operation 2 Fully tilt the outboard motor down 3 Remove the clip from the engine shut off switch 4 Hold the down side of the PTT switch pushed 5 Operate the trim zero set while keeping the down side of the PTT switch pushed TIP For how to operate the trim zero set see the owner s manual includ...

Страница 72: ...tch twice quickly TIP This function causes the outboard motor to automatically tilt down to the fully trimmed out position and stop The buzzer sounds before the automatic operation begins and sounds intermittent ly during automatic tilting Pushing the PTT switch briefly during the automatic operation stops the operation If automatic tilting does not operate In the following situations the PTT Tota...

Страница 73: ...running position press the power trim and tilt switch and slowly tilt the out board motor down EMU47850 De activating the engine speed control system ECM02501 This procedure must be done out of the shallow water Otherwise the outboard motor may hits an object in the water as tilting down 1 Close the throttle so that the engine slows to idle speed 2 After the engine is at idle speed in gear move th...

Страница 74: ... or clog internal water pas sages Check and clean the cooling water in let covers frequently when operating in these conditions Flush the engine with clean fresh water after use in these environments Con sult your dealer if normal water flow can not be restored by cleaning the cooling water in let covers or flushing with fresh water U6KNK0E0 book Page 68 Monday November 7 2022 10 23 AM ...

Страница 75: ...is a fire hazard When trailering the boat close the fuel valve to prevent fuel from leaking The outboard motor should be transported and stored in the normal running position If there is insufficient road clearance in this po sition then trailer the outboard motor in the tilt position using a motor support device such as a transom saver bar Consult your Yamaha dealer for further details When the o...

Страница 76: ... through the cooling water passages for about 15 minutes 4 Turn off the water supply and then dis connect the garden hose from the gar den hose connector 5 Install the garden hose connector cap on the bottom cowling securely NOTICE If the garden hose connector cap is not properly installed cooling water can leak out and the engine can overheat during operation ECM05750 TIP When flushing the coolin...

Страница 77: ... with you when you perform maintenance un less otherwise specified The power trim and tilt switches operate even when the ignition key is off Keep people away from the switches whenev er working around the motor When the motor is tilted keep away from the area under it or between it and the clamp bracket Be sure no one is in this area before operating the power trim and tilt mechanism Allow the en...

Страница 78: ...uick acceleration and decelera tion Frequent shifting Frequently starting and stopping the en gine s Operation that fluctuates often between light and heavy cargo loads Outboard motors operating under any of these above conditions require more fre quent maintenance Yamaha recommends that you do this service twice as often as specified in the maintenance chart For ex ample if a particular service s...

Страница 79: ... should be flushed 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 Page 20 hours 3 months 100 hours 1 year 300 hours 3 years 500 hours 5 years Anode s external Inspection or re placement as nec essary 83 Battery electro lyte level terminal Inspection 84 B...

Страница 80: ...sing 77 Impeller water pump housing Inspection or re placement as nec essary Impeller water pump housing Replacement OCV Oil Control Valve filter Replacement Power trim and tilt unit Inspection 45 Propeller propeller nut cotter pin Inspection or re placement as nec essary 80 PCV Pressure Control Valve Inspection or re placement as nec essary Spark plug s Inspection or re placement as nec essary Wa...

Страница 81: ...ent as nec essary Item Actions Every Page 1000 hours Exhaust guide ex haust manifold Inspection or re placement as nec essary Timing belt Replacement Cam chain Inspection or re placement as nec essary Cam chain ten sioner Inspection or re placement as nec essary Valve clearance Inspection and ad justment Fuel strainer Inspection or re placement as nec essary Fuel line DI pres sure Inspection Fuel ...

Страница 82: ...xhaust joint Anode s internal 1 Inspection or re placement as nec essary Anode s Under the timing belt Inspection or re placement as nec essary SBW Steer by wire Inspection or re placement as nec essary Item Actions Every Page 1000 hours U6KNK0E0 book Page 76 Monday November 7 2022 10 23 AM ...

Страница 83: ...Maintenance 77 EMU46621 Greasing Yamalube grease A water resistant grease Yamaha grease D corrosion resistant grease U6KNK0E0 book Page 77 Monday November 7 2022 10 23 AM ...

Страница 84: ...Maintenance 78 U6KNK0E0 book Page 78 Monday November 7 2022 10 23 AM ...

Страница 85: ... oil is an important liquid engine com ponent We form teams of specialists in the fields of mechanical engineering chemistry electronics and track testing and have them develop the engine together with the oil it will use Yamalube oils take full advantage of the base oil s qualities and blend in the ideal ba lance of additives to make sure the final oil clears our performance standards Thus Yamalu...

Страница 86: ...between the anti cavitation plate and the propeller to prevent the propeller from turning Checkpoints Check each of the propeller blades for ero sion from cavitation or ventilation and oth er damage Check the propeller shaft for damage Check the splines for wear and damage Check for fish line tangled around the pro peller shaft EMU41992 Removing propeller 1 Straighten the cotter pin and pull it ou...

Страница 87: ...uld be damaged ECM01882 3 Install the spacer washer and propeller nut Tighten the propeller nut to the specified torque 4 Align the propeller nut slot with the pro peller shaft hole Insert a new cotter pin in the hole and bend the cotter pin ends NOTICE Do not reuse the cotter pin Otherwise the propeller can come off during operation ECM01892 TIP If the propeller nut slot does not align with the p...

Страница 88: ...y 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 repair the outboard motor ECM00714 TIP For disposal of used gear oil consult your Yamaha dealer 6 Remove any metal particles on the mag netic gear oil drain bolt NOTICE If there is an excessive quantit...

Страница 89: ...lation 12 Install the cooling water inlet covers on both sides of the lower unit and then tighten the bolts to the specified torque EMU29318 Inspecting and replacing anode s Yamaha outboard motors are protected from corrosion by sacrificial anodes Inspect the external anodes periodically Remove scales Tightening torque 2 5 N m 0 25 kgf m 1 8 lb ft 1 Oil filler bolt 2 O ring Recommended gear oil YA...

Страница 90: ... batteries This procedure con tains typical checks that apply to many bat teries but you should always refer to the battery manufacturer s instructions ECM01921 A poorly maintained battery will quickly deteriorate 1 Check the electrolyte level 2 Check the battery s charge If your boat is equipped with the digital speedome ter the voltmeter and low battery alert functions will help you monitor the ...

Страница 91: ...not start the engine Connecting an accessory battery optional If connecting an accessory battery consult your Yamaha dealer about correct wiring It is recommendable to install the fuse to the iso lator lead as shown in the illustration For the fuse size be sure to follow local regulations For example for USA the ABYC rules E 11 should be observed Single engine 1 Red cable 2 Black cable 3 Battery Z...

Страница 92: ...d dam age to the electrical system ECM01941 1 Starboard side engine 2 Port side engine 3 Red cable 4 Black cable 5 Isolator leads with circuit protection 6 Fuse 7 Battery for starting 8 Battery for accessories 9 Negative connecting cable 1 3 9 3 4 6 4 2 5 7 8 7 1 Starboard side engine 2 Center engine 3 Port side engine 4 Red cable 5 Black cable 6 Isolator leads with circuit protection 7 Fuse 8 Bat...

Страница 93: ...87 3 Disconnect the positive cable s and re move the battery from the boat 4 Clean maintain and store the battery according to the manufacturer s instruc tions U6KNK0E0 book Page 87 Monday November 7 2022 10 23 AM ...

Страница 94: ...ectric overload and repair Replace fuse with one of correct amperage Starter Are starter components malfunction ing Have serviced by a Yamaha dealer Trouble Engine will not start starter operates Item Question Answer Engine shut off cord lanyard Is clip on engine shut off cord lan yard installed Install clip to engine shut off switch Fuel tank Is fuel tank empty Fill tank with clean fresh fuel Fue...

Страница 95: ...pump Is fuel pump malfunctioning Have serviced by a Yamaha dealer Fuel tank Is fuel tank air vent restricted or clogged Remove obstruction Fuel joint Is fuel joint connection incorrect Connect correctly Battery Is battery cable disconnected Connect securely Trouble Alert buzzer sounds or indicator lights Item Question Answer Cooling system Is cooling system clogged Inspect cooling water inlet for ...

Страница 96: ...stem Fuel filter Is fuel filter clogged Clean or replace fuel filter Fuel Is fuel contaminated or stale Fill tank with clean fresh fuel Is specified fuel not being used Replace fuel with specified type Ignition wiring Is ignition wiring damaged or poorly connected Inspect wires for breaks and wear Have connections tightened and bro ken or worn wires replaced by a Yamaha dealer Electrical parts Are...

Страница 97: ... engine s tilted up and operate the other en gine s at low speed ECM01731 If the boat is operated with only one or two engines be sure to tilt the unused en gine s up Otherwise water could enter the exhaust pipe due to the wave action causing engine trouble Propeller shaft Is propeller shaft damaged Have serviced by a Yamaha dealer Outboard motor mounting Are outboard motor mounting bolts loose Ti...

Страница 98: ...the following fuses TIP RC Remote control 1 Fuse box 1 1 RC ECU fuse 10 A 2 Main switch PTT switch fuse 20 A 3 ETV fuse 10 A 4 Fuel pump 2 fuse 15 A 5 Fuel pump 1 fuse 15 A 6 Fuel pump fuse 30 A 7 Shift actuator fuse 15 A 8 Starter relay fuse 30 A 9 DI system 2 fuse 20 A 10 DI system 1 fuse 20 A 11 Engine ECU Ignition coil fuse 30 A 12 Fuel feed pump fuse 10 A 13 Isolator 1 fuse 70 A 14 Isolator 2...

Страница 99: ...02331 Never get under the engine while it is tilt ed Severe injury could occur if the out board motor accidentally falls If the outboard motor cannot be tilted up down using the power trim and tilt unit e g because of a discharged battery or a fail ure with the unit itself the outboard motor can be tilted manually 1 Stop the engine 2 Loosen the manual valve screw by turn ing it counterclockwise un...

Страница 100: ...ol There will be fuel in the fuel filter Keep away from sparks cigarettes flames or other sources of ignition This procedure will allow some fuel to spill Catch fuel in a rag Wipe up any spilled fuel immediately The fuel filter must be reassembled carefully with the O ring filter cup and hoses in place Improper assembly or replacement could result in a fuel leak which could result in a fire or exp...

Страница 101: ... top cowling 9 Turn the main switch to the on po sition and check that the water separa tor alert indicator remains off and the buzzer does not sound If the water sep arator alert indicator blinks or the buzzer sounds have your Yamaha dealer check the outboard motor NOTICE Although the buzzer will stop when the engine is started and the remote control lever is moved to the forward or reverse posi ...

Страница 102: ...Trouble Recovery 96 ately NOTICE Do not attempt to run the outboard motor until it has been com pletely inspected ECM00402 U6KNK0E0 book Page 96 Monday November 7 2022 10 23 AM ...

Страница 103: ...l functions checking 42 Control lever 23 Cooling water 52 Cowling lock lever 29 D De activating the engine speed control system 67 DEC alert indicator 24 Digital electronic control 22 Digital electronic control alert 34 Digital electronic control requirements 12 E EC Declaration of Conformity DoC 5 Electric shock 1 Emergency equipment 16 Emergency running in an 91 Emergency temporary action in 91 ...

Страница 104: ...lert 34 Overloading 3 P Passenger training 4 Passengers 2 People in the water 2 Periodic maintenance 71 Personal flotation devices PFDs 2 Power trim and tilt 1 Power trim and tilt switch bottom cowling 28 Power trim and tilt switches 23 Power trim and tilt system checking 45 Power trim and tilt will not operate 93 Propeller 1 Propeller counter rotation models 14 Propeller inspecting 80 Propeller i...

Страница 105: ... Tilting up and down 61 Top cowling installing 44 Top cowling removing 41 Transporting and storing outboard motor 69 Trimming outboard motor 59 Troubleshooting 88 W Warming up engine 52 Warning labels 7 Water separator alert 36 Water separator alert is activated after leaving port 94 Weather 4 Wiring and connectors inspecting 79 Y Yamalube 79 U6KNK0E0 book Page 99 Monday November 7 2022 10 23 AM ...

Страница 106: ...Printed in Japan December 2022 0 1 1 CR U6KNK0E0 book Page 1 Monday November 7 2022 10 23 AM ...

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