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Maintenance

78

F20GEP

EMU47111

Cleaning and adjusting spark plug

The spark plug is an important engine com-
ponent and is easy to inspect. The condition
of the spark plug can indicate something
about the condition of the engine. For exam-
ple, if the center electrode porcelain is very
white, this could indicate an intake air leak or
carburetion problem in that cylinder. Do not
attempt to diagnose any problems yourself.
Instead, take the outboard motor to a
Yamaha dealer. You should periodically re-

move and inspect the spark plug because
heat and deposits will cause the spark plug
to slowly break down and erode.
(1) Disconnect the clamps securing the

spark plug caps.

6HY-9-71-1E0.book 78 ページ２０１９年１２月４日　水曜日　午後２時５１分

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Содержание F20G

Страница 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F20G 6HY 28199 71 E0 6HY 9 71 1E0 book 1 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 2: ...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 6HY 9 71 1E0 book 1 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 3: ...ancies 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 by ...

Страница 4: ... Mounting outboard motor 13 Remote control requirements 14 Battery requirements 14 Battery specifications 14 To install the battery 14 Propeller selection 14 Start in gear protection 15 Engine oil requirements 15 Fuel requirements 16 Gasoline 16 Muddy or acidic water 17 Anti fouling paint 17 Outboard motor disposal requirements 17 Emergency equipment 17 Components 18 Components diagram 18 Fuel tan...

Страница 5: ...ter starting engine 51 Cooling water 51 Warming up engine 51 Manual start and electric start models 51 Checks after engine warm up 52 Shifting 52 Stop switches 52 Shifting 52 Stopping boat 54 Trolling 54 Adjusting trolling speed 54 Stopping engine 54 Procedure 55 Trimming outboard motor 56 Adjusting trim angle for manual tilt models 56 Adjusting trim angle power tilt models 57 Adjusting boat trim ...

Страница 6: ...ller 85 Removing propeller 85 Installing propeller 86 Changing gear oil 87 Inspecting and replacing anode s 88 Checking battery for electric start models 88 Connecting the battery 89 Disconnecting the battery 89 Trouble Recovery 91 Troubleshooting 91 Temporary action in emergency 94 Impact damage 94 Replacing fuse 94 Power tilt will not operate 95 Starter will not operate 95 Emergency starting eng...

Страница 7: ...ock or electrocution EMU34791 Power 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 tilt mecha nism The power tilt switches operate even when the main switch is off Keep people be away from the switches whenever working around the motor...

Страница 8: ...ating 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 minimum children and non swimmers should always wear PFDs and everyone shoul...

Страница 9: ...ction 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 another direction EMU48100 Collisions with floating or submerged objects If the outboard motor hits a floating object or an obstacle in the water while cruising t...

Страница 10: ... an 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 ...

Страница 11: ...ration Re cord this number in the space provided for reference in case you need a new key EMU38983 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 relating to machinery Each conformed outboard motor accompa nied with EC DoC EC DoC contains ...

Страница 12: ...rm to European regulations Outboard motors affixed with this CE mark ing conform with the directives of 2006 42 EC 94 25 EC 2003 44 EC 2014 30 EU and 2004 108 EC 2013 53 EU 1 CE marking location 1 CE marking location 1 ZMU08714 1 ZMU08715 ZMU06040 6HY 9 71 1E0 book 6 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 13: ...y 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 F20GE F20GEP 3 1 2 ZMU08815 6HY 9 71 1E0 book 7 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 14: ...General information 8 F20GMH F20GWH 3 1 2 ZMU08717 6HY 9 71 1E0 book 8 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 15: ...s while the engine is running Do not touch or remove electrical parts when starting or during operation 3 EWM01672 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 ZMU05746 1 2 3 6EE G2794 40 6EE G2794 50 6EE H1994 40 6EE...

Страница 16: ...ontrol lever gear shift lever operat ing direction dual direction Engine start Engine cranking EMU48000 Engine data recording This model s ECM stores certain engine data to assist in the diagnosis of malfunctions and for research statistical analysis and devel opment purposes ZMU05696 ZMU05664 ZMU05665 ZMU05666 ZMU05667 ZMU05668 6HY 9 71 1E0 book 10 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 17: ...ose this data to a third party except in the following cases In addi tion Yamaha may provide engine data to a contractor in order to outsource services re lated to the handling of the engine data Even in this case Yamaha will require the contractor to properly handle the engine data we provided and Yamaha will appropriately manage the data With the consent of the boat owner Where obligated by law ...

Страница 18: ...AL L 58 kg 128 lb F20GE 59 kg 130 lb F20GMH 62 kg 137 lb F20GWH 63 kg 139 lb F20GEP Performance Full throttle operating range 5000 6000 r min Rated power 14 7 kW 20 HP Idle speed in neutral 850 950 r min Power unit Type 4 stroke SOHC L2 4 valves Total displacement 432 cm3 26 4 c i Bore stroke 65 0 65 1 mm 2 56 2 56 in Ignition system TCI Spark plug NGK DPR6EB 9 Spark plug gap 0 8 0 9 mm 0 031 0 03...

Страница 19: ...0 391 US qt 0 326 Imp qt Noise and vibration level Operator sound pressure level ICOMIA 39 94 83 0 dB A Vibration on tiller handle ICOMIA 38 94 4 7 m s2 EMU33556 Installation requirements EMU33566 Boat horsepower rating EWM01561 Overpowering a boat can cause severe instability Before installing the outboard motor s con firm that the total horsepower of your out board motor s does not exceed the bo...

Страница 20: ...ze and length EMU44771 To install the battery ECM01091 A battery cannot be connected to models that do not have a rectifier or Rectifier Regulator If you wish to use a battery your outboard motor must be equipped with the following parts Rectifier or Rectifier Regulator Lighting coil If you do not know if your outboard motor is equipped with these parts consult your Yamaha dealer Install an option...

Страница 21: ...ay within the recommended engine speed range when carrying lighter loads To check the propeller see page 85 EMU25771 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 engine to be started only when it is in neutral Always select neutral before starting the engine EMU41953 Engine oil ...

Страница 22: ...d in clean containers TIP This mark identifies the recommended fuel for this outboard motor as specified by Eu ropean regulation EN228 Check that gasoline nozzle has the same identifier when fueling Recommended engine oil YAMALUBE 4 or 4 stroke outboard motor oil Recommended engine oil grade 1 SAE 10W 30 10W 40 5W 30 API SG SH SJ SL Recommended engine oil grade 2 SAE 15W 40 20W 40 20W 50 API SH SJ...

Страница 23: ...idic water Yamaha strongly recommends that you have your dealer install the optional chromium plated water pump kit if you use the outboard motor in muddy or acidic water conditions However depending on the model it might not be required EMU36331 Anti fouling paint A clean hull improves boat performance The boat bottom should be kept as clean of ma rine growth as possible If necessary the boat bot...

Страница 24: ... on all mod els order from dealer F20GMH F20GWH F20GE 9 1 2 8 10 11 4 3 5 6 7 ZMU08783 1 Top cowling 2 Clamp bracket 3 Oil level plug 4 Anti cavitation plate 5 Cooling water inlet 6 Gear oil drain screw 7 Propeller 8 Trim tab 9 Drain screw 10 Idle hole 11 Cowling lock lever 6HY 9 71 1E0 book 18 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 25: ...op cowling 2 Clamp bracket 3 Oil level plug 4 Anti cavitation plate 5 Cooling water inlet 6 Gear oil drain screw 7 Propeller 8 Trim tab 9 Drain screw 10 Power tilt switch 11 Idle hole 12 Cowling lock lever 6HY 9 71 1E0 book 19 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 26: ...rity regula tions 16 15 14 13 12 11 10 9 8 2 1 4 3 7 6 5 18 17 1 Top cowling 2 Manual starter handle 3 Starter button 4 Alert indicator 5 Engine shut off cord lanyard 6 Engine stop button 7 Throttle friction adjuster 8 Gear shift lever 9 Throttle grip 10 Variable trolling RPM switch 11 Clamp screw 12 Tilt lock lever 13 Restraint cable attachment 14 Steering friction adjuster 15 Tilt support knob 1...

Страница 27: ...ical switch es are mounted on the remote control box EMU26191 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 farther opens the throttle and the engine will begin to accelerate 1 Fuel join...

Страница 28: ... operate only 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 EMU25914 Tiller handle To change direction move the tiller handle to the left or right as necessary EMU25925 Gear shift lever Move the gear shift lever forward to engage the forward gear or rearward to engage the reverse gear 6 Throttle 7 Fu...

Страница 29: ...consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throttle position Choose the setting that offers the best performance and fuel economy for the desired operation 1 Forward 2 Neutral 3 Reverse 1 Forward 2 Neutral 3 Reverse ZMU08722 R F 1 2 3 N 2 2 1 3 2 1 3 1 Throttle indicator ZMU08723 ZMU08724 6FM 00 1 6HY 9 71 1E0 book 23 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 30: ...maintain the desired throttle set ting EMU25996 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 leg Should the operator fall overboard or leave the helm the cord will pull out the clip stopping ignition to the engine This will prevent the boat from ...

Страница 31: ... in the boat to be thrown forward EWM00123 EMU26004 Engine stop button The engine stop button stops the engine when the button is pushed 1 Engine shut off cord lanyard 2 Clip 3 Engine shut off switch 1 Engine shut off cord lanyard 2 Clip 3 Engine shut off switch ZMU01716 1 2 3 ZMU08726 2 1 3 1 Engine shut off cord lanyard 2 Clip 3 Engine shut off switch 1 1 1 2 2 3 3 ZMU08727 6HY 9 71 1E0 book 25 ...

Страница 32: ...h 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 gine When the key is released it returns automatically to the on position EMU26103 Power tilt switch The power tilt system adjusts the outboard motor angle in relation to the transom Push ing the switch up tilts the outboard mo...

Страница 33: ...ver to the starboard side A To decrease resistance turn the lever to the port side B EWM00041 Do not overtighten the friction adjuster If there is too much resistance it could be difficult to steer which could result in an accident If the resistance does not increase even when the lever is turned to the starboard side A make sure that the nut is tightened to the specified torque 1 Power tilt switc...

Страница 34: ...arted or when the engine speed exceeds ap proximately 3000 r min For instructions on using the variable troll ing RPM switches see page 54 EMU26246 Trim tab with anode EWM00841 An improperly adjusted trim tab could cause difficult steering Always test run after the trim tab has been installed or re placed to be sure steering is correct Be sure you have tightened the bolt after ad justing the trim ...

Страница 35: ...nt the outboard motor from lifting out of the wa ter when in reverse gear To release the lock pull up the tilt lock lever in the release position EMU26323 Tilt support knob To keep the outboard motor in the tilted up position push the tilt support knob under the swivel bracket ECM00661 Do not use the tilt support lever or knob when trailering the boat The outboard motor could shake loose from the ...

Страница 36: ...ower tilt unit This unit tilts the outboard motor up and down and is controlled with the power tilt switch ECM00631 Do not step on or exert pressure on the power tilt motor The power tilt unit could be damaged as a result 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 fall If the motor cannot be trailered ...

Страница 37: ... water TIP For details on usage see page 70 EMU26305 Alert indicator If the engine develops a condition which is cause for alert the indicator lights up For details on how to read the alert indicator see page 33 1 Flushing device ZMU08739 1 1 Alert indicator 1 Alert indicator 1 ZMU08740 1 6HY 9 71 1E0 book 31 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 38: ...t indicate the engine oil level Use the oil dipstick to check the oil lev el For further information see page 41 EMU36034 Overheat alert indicator If the engine temperature rises too high this indicator will light up For further information on reading the indicator see page 33 ECM00053 Do not continue to run the engine if the overheat alert indicator is on Serious en gine damage will occur 1 Low o...

Страница 39: ...in The overheat alert indicator will light or blink if equipped 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 Check the cooling water inlet for clogging EMU26869 Low oil pressure alert If the oi...

Страница 40: ...equipped The buzzer will sound if equipped 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 consult your Yamaha dealer ZMU08745 ZMU02360 6HY 9 71 1E0 book 34 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 41: ...r handling loss of control or fire hazards For permanent ly mounted models your dealer or oth er person experienced in proper rigging should mount the motor EMU47170 Mounting the outboard motor ECM01681 Do not hold the top cowling when mount ing or dismounting the outboard motor The top cowling could come off causing the outboard motor to fall 1 Be sure to mount the outboard motor while the boat i...

Страница 42: ...g height of the outboard motor greatly affects the water resistance If the mounting height is too high cavitation tends to occur thus reducing the propulsion and if the propeller tips cut the air the engine speed will rise abnormally and cause the en gine to overheat If the mounting height is too low the water resistance will increase and thereby reduce engine efficiency Mount the outboard motor s...

Страница 43: ...e trim angle of the outboard motor see page 56 EMU26974 Clamping the outboard motor 1 Place the outboard motor on the tran som so that it is positioned as close to the center as possible Tighten the tran som clamp screws evenly and securely Occasionally check the clamp screws for tightness during operation of the out board motor because they could be come loose due to engine vibration WARNING Loos...

Страница 44: ...ackaging If used they must be of at least the same quality of material and strength and must be tightened se curely After tightening test run the engine and check their tightness EWM00652 1 Bolts ZMU02637 1 6HY 9 71 1E0 book 38 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 45: ...of 10 hours break in to allow mating surfaces of moving parts to wear in evenly TIP Run the engine in the water under load in gear with a propeller installed 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 o...

Страница 46: ...d lift off the top cowling EMU36443 Fuel system EWM00061 Gasoline and its vapors are highly flam mable and explosive Keep away from sparks cigarettes flames or other sourc es of ignition EWM00911 Leaking fuel can result in fire or explo sion Check for fuel leakage regularly If any fuel leakage is found the fuel system must be repaired by a qualified mechanic Improper repairs can make the outboard ...

Страница 47: ...ed throughout the whole range with no binding or excessive free play Operate the throttle levers several times to make sure there is no hesitation in their travel Operation should be smooth 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 EMU36484 Engine shut off cord lanyard Insp...

Страница 48: ... fasteners Check the propeller for damage Check for engine oil leaks EMU36494 Flushing device Check that the flushing device s garden hose connector is securely screwed on to the fit ting on the bottom cowling NOTICE If the garden hose connector is not properly connected cooling water can leak out and the engine can overheat during oper ation ECM01802 EMU36956 Install top cowling 1 Be sure that th...

Страница 49: ...tor accidentally falls Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted Be sure no one is near the outboard motor before performing this check 1 Check the power tilt unit for any sign of oil leaks 2 Operate each of the power tilt switches to check that all switches work 3 Tilt the outboard motor up and check that the tilt rod is pushed out compl...

Страница 50: ...h soap and wa ter If gasoline spills on your clothing change your clothes 1 Be sure the engine is stopped 2 Disconnect the fuel line from the fuel tank and tighten the air vent screw on the fuel tank cap 3 Remove the portable tank from the boat 4 Be sure you are in a well ventilated out door area either securely moored or trailered 5 Do not smoke and keep away from sparks flames static electric di...

Страница 51: ...s 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 EMU2746B Sending fuel portable tank 1 If there is an air vent screw on the fuel tank cap loosen it 2 or 3 turns 2 If there is a fuel joint on the motor align the f...

Страница 52: ...while oper ating 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 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 forw...

Страница 53: ...at if operator is ejected Attach the engine shut off cord to a secure place on your clothing or your arm or leg while oper ating 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 accidentally pulling the cord dur ing normal operation Loss of engine power means the loss of most steering control Also wi...

Страница 54: ... When the engine is cold it needs to be warmed up For further information see page 51 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 91 EMU27606 Electric start prime start models EWM01842 Failure to attach the engine shut off cord could result in a runaway boat if operator is ejected Attach the engin...

Страница 55: ...e the starter button and allow it to re turn to its original position NOTICE Never push the starter button while the engine is running Do not keep the starter motor turning for more than 5 seconds If the starter motor is turned continuously for more than 5 seconds the battery will be quickly discharged thus making it impossi ble to start the engine The starter can also be damaged If the engine wil...

Страница 56: ...slow rapidly This could cause people and objects in the boat to be thrown forward 1 Place the remote control lever in neutral TIP The start in gear protection device prevents the engine from starting except when in neu tral 2 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 3 Tu...

Страница 57: ...11 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 engine and check wheth er 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 cor rected EMU27671 Warming up engine EMU27718 Manual start and electric start mode...

Страница 58: ...tacles in the water near you ECM01611 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 engine shift to neutral then restart the engine and allow it to warm up To shift out of neutral 1 Pull the neutral interlock trigger up if equipped 2 Move the remote...

Страница 59: ...om in gear forward reverse to neutral 1 Close the throttle so that the engine 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 ZMU08763 R F N R F ZMU05462 ZMU08758 6FM 00 START N ZMU01771 6HY 9 71 1E0 book 53 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 60: ...direction EMU30881 Trolling EMU30891 Adjusting trolling speed The trolling speed on outboard motors equipped with the variable 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 t...

Страница 61: ...e if there is a fuel joint on the outboard motor 3 Tighten the air vent screw on the fuel tank cap if equipped 4 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 ZMU08727 ON OFF ZMU01779 ZMU08817 ZMU02301 6HY 9 71 1E0 book 55 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 62: ...t trim is also affected by variables such as the load in the boat sea conditions and running speed EMU38881 Adjusting trim angle for manual tilt models EWM00401 Stop the engine before adjusting the trim angle Use care to avoid being pinched when removing or installing the rod Use caution when trying a trim position for the first time Increase speed gradu ally and watch for any signs of instabil it...

Страница 63: ...irst time Increase speed gradu ally and watch for any signs of instabil ity or control problems Improper trim angle can cause loss of control If equipped with a power trim and tilt switch located on the bottom cowling use the switch only when the boat is at a complete stop with the engine off Do not adjust the trim angle with this switch while the boat is moving 1 Move the gear shift lever to the ...

Страница 64: ... 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 Too much trim in causes the boat to plow through the water decreasing fuel economy and making ...

Страница 65: ...el may leak ECM00242 Before tilting the outboard motor stop the engine by following the procedure on page 54 Never tilt the outboard mo tor while the engine is running Severe damage from overheating can result Do not tilt up the engine by pushing the tiller handle if equipped because this could break the handle EMU47190 Procedure for tilting up manual tilt models 1 Place the remote control lever g...

Страница 66: ...support and fall If the motor cannot be trailered in the normal run ning position use an additional sup port device to secure it in the tilt position For more detailed informa tion see page 66 ECM01642 EMU44650 Procedure for tilting up power tilt models 1 Place the remote control lever gear shift lever in neutral 2 Press the power tilt switch up until the outboard motor has tilted up com pletely Z...

Страница 67: ... 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 additional support device to secure it in the tilt position For more detailed information see page 66 ECM01642 EMU30193 Procedure for tilting down manual tilt models 1 Place the tilt lock lever in the lock posi tion 2 Slightly til...

Страница 68: ... lock mecha nism does not work while the shallow water cruising system is being used Hitting an underwater obstacle could cause the outboard motor to lift out of the water resulting in loss of control Use extra care when operating in re verse Too much reverse thrust can cause the outboard motor to lift out of the water increasing the chance of ac cident and personal injury ECM00261 Do not tilt the...

Страница 69: ... par tially raised position This outboard mo tor has 2 positions for shallow water cruising 4 To return the outboard motor to the nor mal running position place the remote control lever gear shift lever in neutral 5 Place the tilt lock lever in the lock down position then slightly tilt the outboard motor up until the tilt support bar auto matically returns to the free position N ZMU03087 ZMU08756 ...

Страница 70: ...verheat ing can result EMU32943 Procedure for power 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 tilt switch WARNING Using the power tilt switch on the bottom cowling while the boat is moving or engine is on could increase the risk of falling overboard and could distract the op erator increasi...

Страница 71: ... 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 17 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 After operating in such water flush the cool ing passages with fresh water to prevent cor rosion Also...

Страница 72: ... The deteriorated fuel could clog the fuel line causing engine start dif ficulty or malfunction When storing or transporting the outboard motor make sure to follow the procedure list ed below Disconnect the fuel line from 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 ...

Страница 73: ...with the tiller handle 5 Loosen the clamp screw s 6 Hold the handgrip as shown in the illus tration and lift up the outboard motor to dismount it from the boat 7 When transporting or storing the out board motor while removed from a boat keep the outboard motor in the attitude shown or use an outboard motor stand ZMU08787 A 1 Handgrip ZMU08788 1 1 1 1 ZMU08789 6HY 9 71 1E0 book 67 ページ２０１９年１２月４日水曜...

Страница 74: ...es ECM01081 To prevent problems which can be caused by oil entering the cylinder from the sump keep the outboard motor in the attitude shown when transporting and storing it If storing or transporting the outboard motor on its side not up right put it on a cushion after draining the engine oil Do not place the outboard motor on its side before the cooling water has drained from it completely other...

Страница 75: ...he engine at a fast idle for a few minutes in neutral position WARNING Do not touch or remove electrical parts when starting or during opera tion Keep hands hair and clothes away from the flywheel and other ro tating parts while the engine is run ning EWM00092 6 Just prior to turning off the engine quick ly spray Fogging Oil on to the silencer cover When properly done the engine will almost stall ...

Страница 76: ...amage from overheating can result 1 After shutting off the engine unscrew the garden hose connector from the fit ting on the bottom cowling 2 Screw the garden hose adapter onto a garden hose which is connected to a fresh water supply and then connect it to the garden hose connector 3 With the engine off turn on the water tap and let the water flush through the cool ing passages for about 15 minute...

Страница 77: ...amaha dealer EMU2847G Periodic maintenance EWM01872 These procedures require mechanical skills tools and supplies If you do not have the proper skills tools or supplies to perform a maintenance procedure have a Yamaha dealer or other qualified mechanic do the work The procedures involve disassembling the motor and exposing dangerous parts To reduce the risk of injury from moving hot or electrical ...

Страница 78: ...engine speed rpm for many hours Operating without sufficient time for engine to warm up and cool down Frequent quick 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...

Страница 79: ...er the engine 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 replacement as necessary 88 Anode s internal 1 Inspection or replace...

Страница 80: ...lamp bracket bolt through tube Inspection and greasing Impeller water pump housing Inspection or replacement as necessary Impeller water pump housing Replacement Power tilt unit Inspection 43 Propeller propeller nut cotter pin Inspection or replacement as necessary 85 Shift link shift cable Inspection adjust ment or replace ment as necessary Spark plug s Inspection or replacement as necessary 78 S...

Страница 81: ...justment Cooling water inlet Inspection 18 Main switch stop switch Inspection or replacement as necessary Wire harness con nections wire cou pler connections Inspection or replacement as necessary Yamaha Meter gauge Inspection Fuel tank Yamaha portable tank Inspection and cleaning as neces sary Item Actions Every Page 1000 hours Exhaust guide exhaust manifold Inspection or replacement as necessary...

Страница 82: ...intenance 76 EMU28945 Greasing Yamaha grease A water resistant grease Yamaha grease D corrosion resistant grease for propeller shaft F20GMH F20GWH ZMU08779 6HY 9 71 1E0 book 76 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 83: ...Maintenance 77 F20GE ZMU08826 6HY 9 71 1E0 book 77 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 84: ...electrode porcelain is very white this could indicate an intake air leak or carburetion problem in that cylinder Do not attempt to diagnose any problems yourself Instead take the outboard motor to a Yamaha dealer You should periodically re move and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode 1 Disconnect the clamps securing the spark pl...

Страница 85: ...ion or fire EWM00562 4 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 5 When fitting the plug wipe off any dirt from the threads and then screw it in to the correct torque 1 Clamp 1 Spark plug cap 1 1 1 ZMU08803 1 ZMU08802 1 Spark plug Stand...

Страница 86: ...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 motor in the water 1 Start the engine and allow it to warm up fully in neutral until it is running smooth ly 2 Once the engine has warmed up verif...

Страница 87: ...he out board motor is not level the oil level indicated on the oil dipstick may not be accurate ECM01862 2 Start the engine Warm it up and keep the idle speed for 5 10 minutes 3 Stop the engine and leave it for 5 10 minutes 4 Remove the top cowling 5 Remove the oil filler cap Pull out the dip stick and use the oil changer to extract the oil completely TIP When using an oil changer skip steps 6 and...

Страница 88: ...e dipstick NOTICE Overfilling 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 ECM01851 9 Leave the outboard motor for 5 10 min utes 10 Remove the oil dipstick and wipe it clean 11 Insert the dipstick and remove it again Be sure to completely insert the dipstick into the dipstick guide otherwise the oil level me...

Страница 89: ...eplacing the engine oil filter EWM00761 Avoid draining the engine oil immedi ately after stopping the engine The oil is hot and should be handled with care to avoid burns Be sure the outboard motor is securely fastened to the transom or a stable stand Yamaha recommends you to have a Yamaha dealer replace the engine oil filter If you perform replacement yourself follow the procedure below If you ha...

Страница 90: ... oil it will use Yamalube oils take full advantage of the base oil s qualities and blend in the ideal bal ance of additives to make sure the final oil clears our performance standards Thus Ya malube mineral semisynthetic and synthetic oils have their own distinct characters and value Yamaha s experience gained over many years of research and development into oil since the 1960 s helps make Yama lu...

Страница 91: ...ck 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 damage Check for fish line tangled around the pro peller shaft Check the propeller shaft oil seal for dam age EMU30663 Removing prop...

Страница 92: ...e damaged ECM01882 3 Install the spacer if equipped and the washer 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 prop...

Страница 93: ... 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 repair the out...

Страница 94: ...ent of external anodes ECM00721 Do not paint anodes as this would render them ineffective TIP Inspect ground leads attached to external anodes on equipped models Consult a Yamaha dealer for inspection and replace ment of internal anodes attached to the pow er unit EMU29324 Checking battery for electric start models EWM01903 Battery electrolyte is poisonous and caustic and batteries generate explos...

Страница 95: ...urely in a dry well ventilated vibration free loca tion in the boat Install a fully charged bat tery in the holder ECM01125 Do not reverse the battery cables Other wise the electrical parts could be dam aged 1 Make sure the main 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 t...

Страница 96: ...electrical system ECM01941 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 6HY 9 71 1E0 book 90 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 97: ...rter 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 ...

Страница 98: ...y a Yamaha dealer Fuel tank Is fuel tank air vent restricted or clogged Remove obstruction Fuel joint Is fuel joint connection incorrect Connect correctly Air vent screw Is air vent screw on fuel tank closed Open air vent screw Battery Is battery cable disconnected Connect securely Outboard motor mounting Is motor angle too high Return to normal operating position Throttle valve Is throttle valve ...

Страница 99: ...gn material and clean lower unit Fuel system Is fuel system clogged Inspect for pinched or kinked fuel line or other obstructions in fuel system 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 conne...

Страница 100: ...ct fuse or a piece of wire could allow excessive current flow This could cause electric system damage and a fire hazard Consult your Yamaha dealer if the new fuse immediately blows again Have motor adjusted to proper transom height Is trim angle incorrect Adjust trim angle to achieve most effi cient operation Is motor mounted at incorrect height on transom Have motor adjusted to proper tran som he...

Страница 101: ... starter rope EWM01023 Use this procedure only in an emergen cy to return to the nearest port for re pairs When the emergency starter rope is used to start the engine the start in gear protection device does not oper ate Make sure the remote control lever is in neutral Otherwise the boat could unexpectedly start to move which could result in an accident Attach the engine shut off cord to a se cure...

Страница 102: ...y 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 elec trical components when starting or op erating the motor You could get an electrical shock EMU47121 Emergency starting engine manual start model 1 Disconnect the start in gear protection c...

Страница 103: ... open the throttle a small amount between 1 8 and 1 4 and try again Also if the engine is warm and fails to start open the throttle a same amount and try to start the engine again If the engine still fails to start see page 46 Slowly return the throttle grip to the fully closed position so that the engine does not stall EMU47130 Emergency starting engine electric start model 1 Remove the flywheel ...

Страница 104: ... 4 or 5 tries open the throttle a small amount between 1 8 and 1 4 and try again Also if the engine is warm and fails to start open the throttle a same amount and try to start the engine again If the engine still fails to start see page 46 Slowly return the throttle grip to the fully closed position so that the engine does not stall EMU33502 Treatment of submerged motor If the outboard motor is su...

Страница 105: ...nting the outboard motor 66 E EC Declaration of Conformity DoC 5 Electric shock 1 Emergency equipment 17 Emergency starting engine electric start model 97 Emergency starting engine manual start model 96 Emergency temporary action in 94 Engine checking 42 Engine data recording 10 Engine oil 41 Engine oil changing 80 Engine oil filling 39 Engine oil requirements 15 Engine shut off cord lanyard 1 41 ...

Страница 106: ...e 71 Personal flotation devices PFDs 2 Power tilt 1 Power tilt switch 26 Power tilt system checking 43 Power tilt unit 30 Power tilt will not operate 95 Propeller 1 Propeller checking 85 Propeller installing 86 Propeller removing 85 Propeller selection 14 R Read manuals and labels 7 Remote control box 21 Remote control lever 21 Remote control requirements 14 Replacement parts 71 Replacing the engi...

Страница 107: ...ing installing 42 Top cowling removing 40 Transporting and storing outboard motor 66 Trimming outboard motor 56 Trim rod tilt pin 29 Trim tab with anode 28 Trolling 54 Troubleshooting 91 V Variable trolling RPM switches 28 W Warming up engine 51 Warning labels 7 Weather 4 Wiring and connectors inspecting 84 Y Yamalube 84 6HY 9 71 1E0 book 101 ページ２０１９年１２月４日水曜日午後２時５１分 ...

Страница 108: ...Printed in Japan November 2019 0 2 1 6HY 9 71 1E0 book 1 ページ２０１９年１２月４日水曜日午後２時５１分 ...

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