Yamaha Electone F-25 Owner'S Manual Download Page 17

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General information

EMU33524

Read manuals and labels

Before operating or working on this outboard motor:



Read this manual.



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.

F25A, F25EA, T25A

ZMU07710

6BP-9-3B-1E0.book 11 ページ２０１５年１１月１６日　月曜日　午後５時５７分

Summary of Contents for Electone F-25

Page 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL F25 T25 LIT 18626 11 12 6BP 28199 3B E0 6BP 9 3B 1E0 book 1 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 2: ...lifornie pour provoquer le cancer des anomalies congénitales et des troubles de la reproduction Read this manual carefully before operating this outboard motor Keep this manual onboard in a waterproof bag when boating This manual should stay with the outboard motor if it is sold 6BP 9 3B 1E0 book 1 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 3: ...r discrepancies 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 co...

Page 4: ...d date label 9 Read manuals and labels 11 Warning labels 11 Specifications and requirements 16 Specifications 16 Installation requirements 17 Boat horsepower rating 17 Mounting motor 18 Remote control requirements 18 Battery requirements 18 Specifications of Battery 18 Without a rectifier or Rectifier Regulator 19 Propeller selection 19 Start in gear protection 20 Engine oil requirements 20 Fuel r...

Page 5: ...ine 46 Fuel level 47 Remove the top cowling 47 Fuel system 47 Controls 47 Engine shut off cord lanyard 48 Engine oil 49 Engine 49 Flushing device 49 Install top cowling 49 Checking power trim and tilt system 50 Battery 50 Filling fuel 51 Operating engine 53 Sending fuel portable tank 53 Starting engine 54 Checks after starting engine 60 Cooling water 60 Warming up engine 61 Manual start and electr...

Page 6: ...usting spark plug 88 Checking fuel filter 89 Inspecting idle speed 89 Changing engine oil 90 Inspecting wiring and connectors 92 Checking propeller 92 Removing propeller 93 Installing propeller 93 Changing gear oil 95 Inspecting and replacing anode s 96 Checking battery for electric start models 97 Connecting the battery 97 Disconnecting the battery 98 Trouble Recovery 99 Troubleshooting 99 Tempor...

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

Page 8: ...PFD whenever boating At a minimum children and non swimmers should always wear PFDs and everyone should wear PFDs when there are potentially hazardous boating conditions EMU33732 People in the water Always watch carefully for people in the wa ter such as swimmers skiers or divers whenever the engine is running When someone is in the water near the boat shift into neutral and stop the engine Stay a...

Page 9: ... following accidents 1 There is loss of life or probable loss of life 2 There is personal injury that requires medical attention beyond first aid 3 There is property damage to boats or other property over a certain amount 4 There is complete loss of a boat Contact local law enforcement personnel if a report is necessary EMU44171 Boat education and training For U S A Operators should take a boating...

Page 10: ...and have been provided for your convenience only Contact the U S Coast Guard the National Association of State Boating Law Adminis trators or your local Power Squadron for a complete set of rules governing the waters in which you will be using your boat EMU44182 Boating organizations The following organizations provide boating safety training and information about boating safety and laws In the U ...

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

Page 12: ...that the other vessel is expected to maintain its course and speed You must stay out of its way until you are clear of it Likewise if an other vessel is passing you you should maintain your speed and direction so that the other vessel can steer itself around you EMU25532 Other special situations There are three other rules you should be aware of when driving your boat around oth er vessels Narrow ...

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

Page 14: ...Safety information 8 ZMU01708 6BP 9 3B 1E0 book 8 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 15: ...the mo tor the key identification number is stamped on your key as shown in the illustration Re cord this number in the space provided for reference in case you need a new key EMU46132 Compliance mark and manufactured date label Engines affixed with this label conform to the regulations for each country This label is affixed to the clamp bracket or swivel bracket 1 Outboard motor serial number loc...

Page 16: ...anufactured date The manufactured date is stamped on the la bel for the engines that conform to the regu lations for U S Environmental Protection Agency EPA The models that manufac tured exclusively for the Oceanian countries may not have manufactured date on the la bel 1 Compliance mark and manufactured date label location 1 Regulatory Compliance Mark RCM 1 ZMU06689 ZMU08190 1 1 ICES 002 Complian...

Page 17: ...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 F25A F25EA T25A 1 3 2 ZMU07710 6BP 9 3B 1E0 book 11 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 18: ...General information 12 F25EHA F25EHB 1 2 3 ZMU08301 6BP 9 3B 1E0 book 12 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 19: ...General information 13 F25MHA F25MHB ZMU06594 1 2 3 6BP 9 3B 1E0 book 13 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 20: ...parts while the engine is running Do not touch or remove electrical parts when starting or during operation 3 WARNING 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 6EE G2794 40 6EE H1994 40 6EE H1995 40 1 2 3 ...

Page 21: ...U35133 Symbols The following symbols mean as follows Notice Warning Read Owner s Manual Hazard caused by continuous rotation Electrical hazard ZMU05696 ZMU05664 ZMU05665 ZMU05666 6BP 9 3B 1E0 book 15 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 22: ...m 21 7 in F25A F25EA F25EHB F25MHB Dry weight AL S 77 kg 170 lb F25MHA 78 kg 172 lb F25EA 80 kg 176 lb F25EHA Dry weight AL L 79 kg 174 lb F25EA 80 kg 176 lb F25MHB 82 kg 181 lb F25A 83 kg 183 lb F25EHB 92 kg 203 lb T25A Performance Full throttle operating range 5000 6000 r min Rated power 18 4 kW 25 HP Idle speed in neutral 925 1025 r min Power unit Type 4 stroke SOHC L2 4 valves Total displaceme...

Page 23: ...SF SG SH SJ SL Engine oil quantity without oil filter re placement 1 4 L 1 48 US qt 1 23 Imp qt Engine oil quantity with oil filter replace ment 1 6 L 1 69 US qt 1 41 Imp qt Lubrication system Wet sump Recommended gear oil Yamalube Marine Gearcase Lube or Hypoid gear oil Recommended gear oil grade SAE 90 API GL 4 Gear oil quantity 0 320 L 0 338 US qt 0 282 Imp qt F25A F25EA F25EHA F25EHB F25MHA F2...

Page 24: ...eets the following specifications The engine cannot be started if battery voltage is too low NOTICE ECM01063 Do not use a battery that does not meet the specified capacity If a battery that does not meet specifications is used the electric system could perform poor ly or be overloaded causing electric system damage Do not use a battery which exceeds the maximum CCA rating If the batteries are used...

Page 25: ...and design of your pro peller have a direct impact on acceleration top speed fuel economy and even engine life Yamaha designs and manufactures pro pellers for every Yamaha outboard motor and every application Your outboard motor came with a Yamaha propeller selected to perform well over a range of applications but there may be uses where a different propeller would be more appropriate Your Yamaha ...

Page 26: ...ine see Gasoline with Ethanol whenever possible The use of a poor quality gasoline may result in starting and running problems If you en counter drivability problems which you sus pect could be related to the fuel you are using Yamaha recommends that you switch to a recognized high quality brand of gaso line such as a gasoline that is advertised as Top Tier Detergent Gasoline NOTICE Fail ure to co...

Page 27: ...oline containing ethanol has several properties that may cause boat fuel system problems Ethanol is a strong solvent cleaning agent that can clean gum and varnish de posits from a boat s fuel system particular ly in older boats as well as tanks and pipes used in gasoline distribution These re leased deposits contaminate the fuel and can cause problems such as clogged fuel filters carburetors or fu...

Page 28: ...helping to keep the gasoline s octane level from decreasing excessively during storage Other additives may also be avail able on the market that may have varying de grees of effectiveness Consult your Yamaha dealer concerning what may work best for the locally available gasoline and environ mental conditions EMU36881 Muddy or acidic water Yamaha strongly recommends that you have your dealer instal...

Page 29: ...p the following items onboard in case there is trouble with the outboard motor A tool kit with assorted screwdrivers pli ers 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 EMU2523...

Page 30: ...ese standards have 20 lower emissions than One Star Low Emission en gines EMU40351 Three Stars Ultra Low Emission The three star label identifies engines that meet the Air Resources Board s Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 2003 2008 exhaust emission standards Engines meeting these standards have 65 lower emis...

Page 31: ...Air Resources Board s Sterndrive and Inboard marine engine 2009 exhaust emission standards Personal Watercraft and Outboard marine engines may also comply with these standards Engines meet ing these standards have 90 lower emis sions than One Star Low Emission engines ZMU01704 ZMU05663 6BP 9 3B 1E0 book 25 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 32: ... 11 4 9 11 13 15 14 16 17 1 Top cowling 2 Cowling lock lever 3 Idle hole 4 Drain screw 5 Anti cavitation plate 6 Trim tab anode 7 Propeller 8 Cooling water inlet 9 Clamp bracket 10 Power trim and tilt switch 11 Alert indicator s 12 Tilt support knob 13 Flushing device 14 Clamp screw 15 Tilt lock lever 16 Remote control box side mount type 17 Fuel tank 6BP 9 3B 1E0 book 26 ページ２０１５年１１月１６日月曜日午後５時５...

Page 33: ...m tab 7 Propeller 8 Cooling water inlet 9 Trim rod 10 Clamp bracket 11 Restraint cable attachment 12 Manual starter handle 13 Gear shift lever 14 Throttle grip 15 Throttle friction adjuster 16 Engine stop button Engine shut off switch 17 Clip 18 Alert indicator s 19 Clamp screw 20 Steering friction adjuster 21 Tilt lock lever 22 Flushing device 23 Starter button 24 Fuel tank 6BP 9 3B 1E0 book 27 ペ...

Page 34: ... 21 3 2 23 3 4 17 14 11 12 13 19 18 16 15 22 20 21 3 2 23 17 19 ZMU07531 1 Top cowling 2 Flushing device 3 Tilt support knob 4 Clamp bracket 5 Tilt lock lever 6 Anode 7 Cooling water inlet 8 Propeller 9 Trim tab 10 Anti cavitation plate 11 Drain screw 12 Idle hole 13 Cowling lock lever 14 Manual starter handle 15 Starter button 16 Alert indicator s 17 Gear shift lever 18 Throttle grip 19 Throttle ...

Page 35: ...engine EMU26182 Remote control box The remote control lever actuates both the shifter and the throttle The electrical 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 d...

Page 36: ...rottle lever will 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 1 Neutral 2 Forward 3 Reverse 4 Shift 5 Fully closed 6 Throttle 7 Fully open 1 Neutral interlock trigger 1 2 3 4 4 5 5 6 6 7...

Page 37: ...e to increase speed and clockwise to decrease speed EMU25963 Throttle indicator The fuel 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 R F 1 2 3 N ZMU06486 2 Neutral 3 Reverse ZMU03034 6BP 9 3B 1E0...

Page 38: ...e it could be difficult to move the remote control lever or throttle grip which could result in an accident EWM00033 When constant speed is desired tighten the adjuster to 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 ...

Page 39: ...g 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 EWM00123 EMU26004 Engine stop button The engine stop button stops the engine when the button is pushed 1 Cord 2 Clip 3 Engine shut of...

Page 40: ...described below off With the main switch in the off posi tion the electrical circuits are off and the key can be removed on With the main switch in the on posi tion the electrical circuits are on and the key cannot be removed start With the main switch in the start po sition the starter motor turns to start the en gine When the key is released it returns automatically to the on position ZMU02083 Z...

Page 41: ...TIP Steering movement is blocked when the adjuster lever is set to the A position Check the tiller handle for smooth move ment when the lever is turned to the star board side B Do not apply lubricants such as grease to the friction areas of the steering friction ad juster EMU26144 Power trim and tilt switch on remote control or tiller handle The power trim and tilt system adjusts the outboard moto...

Page 42: ...ith another boat or an obstacle EMU26246 Trim tab with anode WARNING 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 tab The trim tab should be adjusted so that the steering control can be turned to either the right ...

Page 43: ...rim tab rear end to the port side A in the figure If the boat tends to veer to the right star board side turn the trim tab end to the star board side B in the figure EMU26263 Trim rod tilt pin The position of the trim rod determines the minimum trim angle of the outboard motor in relation to the transom EMU43732 Tilt lock mechanism The tilt lock mechanism is used to prevent the outboard motor from...

Page 44: ...rd motor could shake loose from the tilt sup port and fall If the motor cannot be trailered in the normal running position use an additional support device to se cure it in the tilt position EMU26334 Tilt support bar The tilt support bar keeps the outboard motor in the tilted up position NOTICE ECM01661 Do not use the tilt support bar when trailering the boat The outboard motor could shake loose f...

Page 45: ...es of the motor using a garden hose and tap water TIP For details on usage see page 80 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 41 1 Cowling lock lever s 1 Flushing device ZMU08557 1 1 ZMU06505 1 Alert indicator 1 ZMU06506 6BP 9 3B 1E0 book 39 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 46: ...e alert indicator does not indicate the engine oil level Use the oil dipstick to check the re maining oil quantity For further infor mation see page 49 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 41 NOTICE ECM00053 Do not continue to run the engine if the overheat alert indicator i...

Page 47: ...cator will light or blink The buzzer will sound if equipped on the tiller handle remote control box or main switch panel If the alert system has activated stop the en gine and check the cooling water inlets Check trim angle to be sure that the cool ing water inlet is submerged Check the cooling water inlet for clogging EMU3016C Low oil pressure alert If the oil pressure drops too low the alert de ...

Page 48: ...main switch panel If the alert system has activated stop the en gine as soon as it is safe to do so Check the oil level and add oil as needed If the oil level is correct and the alert device does not switch off consult your Yamaha dealer ZMU06510 ZMU02360 6BP 9 3B 1E0 book 42 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 49: ...motor EMU33471 Mounting the outboard motor The outboard motor should be mounted so that the boat is well balanced Otherwise the boat could be hard to steer For single en gine boats mount the outboard motor on the centerline keel line of the boat EMU26926 Mounting height To run your boat at optimum efficiency the water resistance drag of the boat and out board motor must be made as little as possi ...

Page 50: ...f the outboard motor see page 65 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 Loose clamp screws...

Page 51: ...hey 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 6BP 9 3B 1E0 book 45 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 52: ...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 operation Increase engine speed as much as nec essary to put th...

Page 53: ... sourc es of ignition WARNING 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 unsafe to operate EMU36453 Check for fuel leaks Check for fuel leaks or gasoline fumes in the boat Check for fuel leakage from the fuel sys tem Check the fue...

Page 54: ...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 Inspect the engine shut off cord and clip for damage such as cuts breaks and wear ZMU06590 ZMU06589 1 Cord 2 ...

Page 55: ...eaks 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 the cowling lock lever is re leased 2 Be sure that the rubber seal...

Page 56: ...e each of the power trim and tilt switches to check that all switches work 3 Tilt the outboard motor up and check that the trim and tilt rod is pushed out completely 4 Check that the trim and tilt rod is free of corrosion or other flaws 5 Tilt the outboard motor down Check that the trim and tilt rod operates smoothly EMU36585 Battery Check the battery s charge If your boat is equipped with a Yamah...

Page 57: ...engine is stopped Securely moor the boat in a well ventilated area and stop the engine If the boat is trailered ensure it is stable Do not smoke and keep away from sparks flames static electric discharges or other sources of ignition If you use a portable container to store and dispense fuel use only a locally approved GASOLINE container To prevent electrostatic sparks discharge any built up stati...

Page 58: ...NG Do not overfill Otherwise fuel can ex pand and overflow if the temperature increases EWM02611 TIP Wipe up any spilled gasoline immediately with dry rags Dispose of rags properly according to local laws or regulations 8 Turn the fuel tank cap clockwise to tight en until a click is heard 9 Turn the air vent screw clockwise to close it 1 Pressure relief tab 2 Fuel tank cap 1 Pressure relief tab 2 ...

Page 59: ...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 EMU43174 Sending fuel portable tank 1 To loosen the air vent screw turn it counterclockwise until it stops 2 Check the direction of the fuel hose Make sure that the arrow of the primer pump points toward the outboard ...

Page 60: ...valve EMU27495 Starting engine WARNING 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 wa ter near you EMU39014 Manual start prime start models WARNING EWM01842 Failure to attach the engine shut off cord could result in a runaway boat if operator is ejected Attach the engine shut off...

Page 61: ...r leg Then install the clip on the other end of the cord into the engine shut off switch 3 Place the throttle grip in the start position 4 Pull the manual starter handle slowly un til you feel resistance Then give a strong pull straight out to crank and start the engine Repeat if necessary 5 After the engine starts slowly return the manual starter handle to its original posi tion before releasing ...

Page 62: ...opening and closing of the throttle grip as this cause the spark plug to wet with fuel and prevent from the engine to start 4 Hold this throttle grip position by tighten ing the throttle friction adjuster 5 Pull the manual starter handle slowly un til you feel resistance Then give a strong pull straight out to crank and start the engine Repeat if necessary 6 After the engine starts slowly return t...

Page 63: ... 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 Place the gear shift 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...

Page 64: ...lt in a runaway boat 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 steeri...

Page 65: ...rt the engine again If the engine still fails to start see page 99 6 Slowly return the throttle grip to the fully closed position EMU27666 Electric start and remote control models WARNING EWM01842 Failure to attach the engine shut off cord could result in a runaway boat 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 ...

Page 66: ... ECM00193 TIP When the engine is cold it needs to be warmed up For further information see page 61 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 99 EMU36511 Checks after starting engine EMU36524 Cooling water Check for a steady flow of water from the cooling water pilot hole A continuous flow of wat...

Page 67: ...reverse and back to neutral EMU36981 Stop switches Turn the main switch to or press the engine stop button and make sure the en gine stops Confirm that removing the clip from the en gine shut off switch stops the engine Confirm that the engine cannot be started with the clip removed from the engine shut off switch EMU34563 Shifting WARNING EWM00181 Before shifting make sure there are no swimmers o...

Page 68: ...if equipped before operating in reverse TIP Tiller handle models The gear shift lever op erates only when the throttle grip is in the ful ly closed position To shift from in gear forward reverse to neutral 1 Close the throttle so that the engine slows to idle speed ZMU06528 ZMU07536 F N R 32 32 ZMU05460 R F N ZMU06531 R F ZMU05462 6BP 9 3B 1E0 book 62 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 69: ...r parts of the boat This could increase the risk of serious 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...

Page 70: ...ended EMU43192 Procedure 1 Push and hold the engine stop button or turn the main switch to off 2 After stopping the engine disconnect the fuel hose from the fuel joint on the outboard motor 3 Disconnect the fuel hose from the fuel joint on the fuel tank ZMU02083 ON OFF ZMU01779 1 Fuel joint 2 Fuel hose 1 Fuel joint 2 Fuel hose 1 2 ZMU08028 ZMU07443 2 1 6BP 9 3B 1E0 book 64 ページ２０１５年１１月１６日月曜日午後５時...

Page 71: ...e will help im prove performance and fuel economy while reducing strain on the engine Correct trim angle depends upon the combination of boat engine and propeller Correct 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 WARNING EWM00401 Stop the engine before adjusting the trim angle Use care to av...

Page 72: ... the trim angle Body parts can be crushed be tween the motor and the clamp bracket when the motor is trimmed or tilted Use caution when trying a trim position for the first time Increase speed gradu ally and watch for any 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...

Page 73: ...the tilt lock lever in the release po sition 3 Hold the rear of the top cowling with one hand and tilt the engine to the desired angle 4 Place the tilt lock lever back into the lock position to support the engine To raise the bow trim out tilt the engine up To lower the bow trim in tilt the engine down Make test runs with the trim set to different angles to find the position that works best for yo...

Page 74: ...ng on the type of boat the outboard motor trim angle may have little effect on the trim of the boat when operating EMU27936 Tilting up and down If the engine will be stopped for some time or if the boat is moored in shallows the out board motor should be tilted up to protect the propeller and lower casing from damage by collision with obstructions and also to re duce salt corrosion WARNING EWM0022...

Page 75: ...ull up the shallow water lever if equipped 5 Hold the rear of the top cowling with one hand and tilt the engine up fully 6 Push the tilt support knob into the clamp bracket Or the tilt support bar will turn to the lock position automatically NOTICE Do not use the tilt support lever or knob when trailering the boat The outboard motor could shake loose from the tilt support and fall If the motor can...

Page 76: ...n to support the outboard motor NOTICE Do not use the tilt support lever 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 additional support device to secure it in the tilt position For more detailed information see page 77 ECM01642 EMU44590 Procedure for tilting up power trim...

Page 77: ...uld fall back down suddenly if oil in the power trim and tilt unit or in the pow er tilt unit loses pressure EWM00263 NOTICE Do not use the tilt support lever 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 additional support device to secure it in the tilt position For more ...

Page 78: ...op cowling with one hand tilt the outboard motor up slightly and pull out the tilt support knob or re turn the tilt support lever 3 Slowly tilt the outboard motor down 4 Place the tilt lock lever in the lock posi tion EMU44601 Procedure for tilting down power trim and tilt models 1 Push the power trim and tilt switch up until the outboard motor is support ed by the tilt rod and the tilt support kn...

Page 79: ...tboard 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 NOTICE ECM00261 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...

Page 80: ... 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 6 Slowly lower the outboard motor to the normal position EMU28082 Hydro tilt models The outboard motor can be tilted up partially to allow operation in shallow water WARNING EWM00272 Run the boat at the lowest possible speed when using the shallow water c...

Page 81: ...on 4 To return the outboard motor to the nor mal running position pull the tilt lock le ver up to the release position and slowly tilt the outboard motor down 5 Push the tilt lock lever down to the lock position EMU32852 Power trim and tilt models The outboard motor can be tilted up partially to allow operation in shallow water NOTICE ECM00261 Do not tilt the outboard motor up so that the cooling ...

Page 82: ...U28196 Cruising in other conditions Cruising in salt water After operating in salt water flush the cooling water passages with fresh water to prevent them from becoming clogged Also rinse the outside of the outboard motor with fresh wa ter Cruising in muddy turbid or acidic water Yamaha strongly recommends that you use the optional chromium plated water pump kit see page 22 if you use the outboard...

Page 83: ...rting the outboard motor make sure to follow the procedure list ed below Disconnect the fuel hose from the fuel joint on the outboard motor Tighten the fuel tank cap and its air vent screw Store the fuel tank in a well ventilated place Store the fuel tank in a place that is stable and not exposed to shocks When the outboard motor is tilted for a pro longed time for mooring or trailering the boat m...

Page 84: ...om pletely remove all gasoline from the boat s fuel tank s If it is not possible to remove the gasoline add one ounce of Yamalube Fuel Stabilizer Conditioner Plus to each gallon of gasoline in a full tank of gasoline to pro vide fuel stability and corrosion protection TIP Do not fill the fuel tank s to the point of over flowing Approximately 7 8 full will allow enough space in the fuel tank to pre...

Page 85: ... 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 Yamaha Stor Rite Engine Fogging Oil alternately into the silencer cover When properly done the engine will smoke excessively and almost stall 7 Remove the outboard motor from the test tank 8 Drain the cooling water completely out ...

Page 86: ...ght after operation for the most thorough flushing NOTICE ECM01531 Do not perform this procedure while the engine is running The water pump may be damaged and severe damage 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...

Page 87: ...ical 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 parts Turn off the engine and keep the key s and engine shut off cord lanyard with ...

Page 88: ... the Mainte nance Chart were developed based upon typical use that includes operating at varied speeds with sufficient time for engine warm up and cool down a medium to light load and an average cruising speed near the 3000 to 4000 rpm range As with any engine however if your normal operating conditions are different you should consider service more often than shown especially how often you change...

Page 89: ...ter 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 96 Anode s internal 1 Inspection or replac...

Page 90: ...r pump housing Replacement Power trim and tilt unit Inspection 50 Propeller propeller nut cotter pin Inspection or replacement as necessary 92 Shift link shift cable Inspection adjust ment or replace ment as necessary Spark plug s Inspection or replacement as necessary 88 Spark plug caps spark plug wires Inspection or replacement as necessary Water from the cooling water pilot hole Inspection 60 T...

Page 91: ...ection 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 Timing belt Replacement Item Actions Initial Every Page 20 hours 3 mon...

Page 92: ...Maintenance 86 EMU41302 Greasing Yamalube Marine Grease F25A F25EA T25A ZMU06567 6BP 9 3B 1E0 book 86 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 93: ...Maintenance 87 F25EHA F25MHA ZMU06554 6BP 9 3B 1E0 book 87 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 94: ...n 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 ZMU07533 6BP 9 3B 1E0 book 88 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 95: ...ew it in to the correct torque TIP If a torque wrench is not available when you are reinstalling a spark plug a good estimate of the correct torque is 1 12 turn past finger tight When you are installing a new spark plug a good estimate of the correct torque is 1 2 turn past finger tight EMU37451 Checking fuel filter Check the fuel filter periodically If any water or foreign matter is found in the ...

Page 96: ... sure the outboard motor is securely fastened to the transom or a stable stand NOTICE ECM01711 Change the engine oil after the first 20 hours of operation or 3 months and ev ery 100 hours or at 1 year intervals there after Otherwise the engine will wear quickly To prevent spilling oil where it could cause damage to nature it is strongly recommend ed that you use an oil changer to change the engine...

Page 97: ...f oil through the filler hole Put back the filler cap and the 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...

Page 98: ... extended trolling EMU29116 Inspecting wiring and connectors Inspect that each connector is engaged securely Inspect that each ground lead is properly secured EMU32113 Checking propeller WARNING EWM01882 You could be seriously injured if the en gine accidentally starts when you are near the propeller Before inspecting re moving or installing the propeller place the shift control in neutral turn th...

Page 99: ... it out using a pair of pliers 2 Remove the propeller nut washer and spacer if equipped WARNING Do not use your hand to hold the propel ler when loosening the propeller nut EWM01891 3 Remove the propeller washer if equipped and thrust washer EMU30673 Installing propeller EMU46120 Spline models NOTICE ECM00502 Make sure to use a new cotter pin and ZMU01897 1 Cotter pin 2 Propeller nut 3 Washer 4 Sp...

Page 100: ...e 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 propeller shaft hole after tightening the pro peller nut to the specified torque tighten the nut furth...

Page 101: ...efore 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 outboard motor ECM00714 TIP For disposal...

Page 102: ... from corrosion by sacrificial anodes Inspect the external anodes periodically Remove scales from the surfaces of the anodes Consult a Yamaha dealer for replacement of external anodes NOTICE ECM00721 Do not paint anodes as this would render them ineffective Tightening torque 7 Nm 0 71 kgf m 5 2 ft lb Tightening torque 7 Nm 0 71 kgf m 5 2 ft lb ZMU06559 ZMU03664 ZMU02924 ZMU05024 ZMU07535 6BP 9 3B ...

Page 103: ...lectrolyte 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 bat tery s charge If the battery needs charg ing consult your Yamaha dealer 3 Check the battery connections They should be clean secure and covered by an insulating cover WARNING Bad connections can produce shorting or arcing a...

Page 104: ...lectrical system can be damaged ECM01931 2 Disconnect the negative cable s from the negative terminal NOTICE Al ways disconnect all negative ca bles first to avoid a short circuit and damage to the 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 1 Red cable 2 Blac...

Page 105: ...ha dealer Q Is shift lever in gear A Shift to neutral Engine will not start starter operates Q Is fuel tank empty A Fill tank with clean fresh fuel Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is fuel filter clogged A Clean or replace filter Q Is starting procedure incorrect A See page 54 Q Has fuel pump malfunctioned A Have serviced by a Yamaha dealer Q Are spark plug s fou...

Page 106: ...r Q Is air vent screw on fuel tank closed A Open air vent screw Q Is choke knob pulled out A Return to home position Q Is motor angle too high A Return to normal operating position Q Is carburetor clogged A Have serviced by a Yamaha dealer Q Is fuel joint connection incorrect A Connect correctly Q Is throttle valve adjustment incorrect A Have serviced by a Yamaha dealer Q Is battery cable disconne...

Page 107: ... s Clean or replace with recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q Is fuel system obstructed A Check for pinched or kinked fuel line or other obstructions in fuel system Q Is fuel filter clogged A Clean or replace filter Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is spark plug gap incorrect A...

Page 108: ...9442 Impact damage WARNING EWM00871 The outboard motor can be seriously damaged by a collision while operating or trailering Damage could make the out board motor unsafe to operate If the outboard motor hits an object in the wa ter follow the procedure below 1 Stop the engine immediately 2 Check the control system and all compo nents for damage Also check the boat for damage 3 Whether damage is fo...

Page 109: ... 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 place on you...

Page 110: ...r 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 elec trical components when starting or op erating the motor You could get an electrical shock EMU38841 Emergency starting engine manual start mode...

Page 111: ... straight out to crank and start the engine If the engine does not start on the first try repeat the procedure TIP If the engine does not start on the first try repeat the procedure If the engine fails to start after 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 engi...

Page 112: ...the clamp and remove the flywheel magnet cover if equipped 3 Remove the flywheel magnet cover after removing the bolt s 4 Be sure that the gear shift is in neutral and that the clip is attached to the en gine shut off switch The main switch must be on if equipped ZMU06585 ZMU06581 ZMU06582 N ZMU01771 N ZMU06521 6BP 9 3B 1E0 book 106 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 113: ... 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 54 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 submerg...

Page 114: ...ha Outboard Motor Dealer for assistance The local dealer will contact Yamaha on the owner s behalf so that needed repairs can be made as quickly as possible CUSTOMER S RESPONSIBILITY Under the terms of this warranty the customer will be responsible for ensuring that the outboard motor is properly operated maintained and stored as specified in the applicable Owner s Manual The owner of the outboard...

Page 115: ...r THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE PROVINCE TO PROVINCE YAMAHA MAKES NO OTHER WARRANTY OF ANY KIND EXPRESSED OR IMPLIED ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA AND EXCLUDED FROM THI...

Page 116: ...country of residence If you are temporarily using a U S registered outboard motor in Canada or a Canada registered outboard motor in the United States and it needs warranty repairs you should contact a nearby authorized Yamaha Outboard Motor Dealer for assistance The local dealer will contact Yamaha on the owner s behalf so that needed repairs can be made as quickly as possible 2 If you need repai...

Page 117: ...bel 9 Components diagram 26 Control functions checking 47 Cooling water 60 Cowling lock lever 39 Cruising in salt water or other conditions 76 E Electric shock 1 Emergency equipment 23 Emergency starting engine electric start model 106 Emergency starting engine manual start model 104 Emergency temporary action in 102 Emission control information 23 Engine checking 49 Engine oil 49 Engine oil chang...

Page 118: ...ssenger training 4 People in the water 2 Periodic maintenance 81 Personal flotation devices PFDs 2 Power trim and tilt 1 Power trim and tilt switch bottom cowling 36 Power trim and tilt switch remote control or tiller handle 35 Power trim and tilt system checking 50 Power trim and tilt will not operate 103 Propeller 1 Propeller checking 92 Propeller installing 93 Propeller removing 93 Propeller se...

Page 119: ...ock mechanism 37 Tilt support bar 38 Tilt support knob 38 Top cowling installing 49 Top cowling removing 47 Transporting and storing outboard motor 77 Trimming outboard motor 65 Trim rod tilt pin 37 Trim tab 37 Trim tab with anode 36 Troubleshooting 99 W Warming up engine 61 Warning labels 11 Warranty information use outside the U S A or Canada 110 Warranty limited 108 Weather 3 Wiring and connect...

Page 120: ...6BP 9 3B 1E0 book 114 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

Page 121: ... cessories will fit right and perform right right out of the box Yamalube Take care of your Yamaha with legendary Yamalube oils lubricants and care products They re formulated and approved by the toughest judges we know the Yamaha engineering teams that know your Yamaha from the inside out Genuine Yamaha Service Manuals Get the same factory manual for your vehicle that the technicians at your auth...

Page 122: ...Printed on recycled paper Printed in Japan December 2015 0 5 1 6BP 9 3B 1E0 book 1 ページ２０１５年１１月１６日月曜日午後５時５７分 ...

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Yamaha Electone F-25, Owner'S Manual

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