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Yamaha F150C, Owner'S Manual

Introducing the Yamaha F150C- a cutting-edge outboard motor delivering impressive power and unmatched performance. Ensure your ownership experience is seamless with the comprehensive Owner's Manual, now available for free download on our website. Discover the pinnacle of marine engineering and access the manual today at manualshive.com.

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Table of contents

General information ...................... 1

Identification numbers record ......  1

Outboard motor serial number ....... 1
Key number .................................... 1

Emission control information .......  1

North American models.................. 1
Star labels ...................................... 2

Safety information .......................  3
Important labels...........................  4

Warning labels................................ 4

Basic boating rules 

(Rules of the road) ...................  4

Steering and sailing rules and 

sound signals .............................. 5

Rules when encountering 

vessels ........................................ 5

Other special situations .................. 6

Fueling instructions .....................  8

Gasoline ......................................... 9
Engine oil........................................ 9

Battery requirement.....................  9

Battery specifications ................... 10

Propeller selection..................... 10
Start-in-gear protection .............  11

Basic components ...................... 12

Main components......................  12

Remote control ............................. 12
Remote control lever .................... 13
Neutral interlock trigger ................ 13
Neutral throttle lever ..................... 13
Free accelerator ........................... 14
Throttle friction adjuster................ 14
Engine stop lanyard switch........... 15
Main switch................................... 15
Power trim and tilt switch on 

remote control ........................... 16

Power trim and tilt switch on 

bottom engine cowling .............. 16

Power trim and tilt switches 

(twin binnacle type) ................... 17

Trim tab with anode...................... 17

Tilt support lever for power trim 

and tilt or hydro tilt model .......... 18

Top cowling lock lever 

(pull up type) ............................. 18

Flushing device ............................ 18
Digital tachometer ........................ 18
Low oil pressure warning 

indicator .................................... 19

Overheat warning indicator 

(digital type) .............................. 19

Speedometer (digital type) ........... 19
Trim meter (digital type) ............... 20
Hour meter (digital type) ............... 20
Trip meter ..................................... 21
Clock ............................................ 21
Fuel gauge ................................... 21
Fuel warning indicator .................. 22
Low battery voltage warning 

indicator .................................... 22

Fuel management meter .............. 22
Fuel flow meter ............................. 23
Fuel consumption meter ............... 23
Fuel economy ............................... 23
Twin-engine speed 

synchronizer.............................. 24

Water separator warning 

indicator .................................... 25

Warning system ........................  25

Overheat warning 

(twin engines)............................ 25

Low oil pressure warning.............. 26

Operation ..................................... 27

Installation.................................  27

Mounting the outboard motor ....... 27

Breaking in engine ....................  28

Procedure for 4-stroke models ..... 28

Preoperation checks .................  29

Fuel .............................................. 29
Controls ........................................ 29
Engine .......................................... 29
Checking the engine oil level........ 29

Filling fuel..................................  29
Operating engine ......................  30

63P10.book  Page 1  Tuesday, May 13, 2003  10:23 AM

Summary of Contents for F150C

Page 1: ...F150C ...

Page 2: ...ZMU01690 Read this owner s manual carefully before operating your outboard motor ...

Page 3: ...motor CAUTION ECM00700 A CAUTION indicates special precautions that must be taken to avoid damage to the outboard motor NOTE A NOTE provides key information to make procedures easier or clearer Yamaha continually seeks advancements in product design and quality Therefore while this manual contains the most current product information available at the time of printing there may be minor discrepanci...

Page 4: ... Power trim and tilt switch on bottom engine cowling 16 Power trim and tilt switches twin binnacle type 17 Trim tab with anode 17 Tilt support lever for power trim and tilt or hydro tilt model 18 Top cowling lock lever pull up type 18 Flushing device 18 Digital tachometer 18 Low oil pressure warning indicator 19 Overheat warning indicator digital type 19 Speedometer digital type 19 Trim meter digi...

Page 5: ...otor 44 Periodic maintenance 45 Replacement parts 45 Maintenance Chart 1 46 Maintenance Chart 2 47 Greasing 48 Cleaning and adjusting spark plug 48 Checking fuel system 49 Inspecting fuel filter 50 Cleaning fuel filter 50 Inspecting idling speed 51 Changing engine oil 52 Checking wiring and connectors 53 Exhaust leakage 53 Water leakage 53 Engine oil leakage 53 Checking power trim and tilt system ...

Page 6: ...Table of contents YAMAHA MOTOR CORPORATION U S A FOUR STROKE OUTBOARD MOTOR THREE YEAR LIMITED WARRANTY 69 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U S A OR CANADA 71 ...

Page 7: ...190 Key number If a main key switch is equipped with the mo tor the key identification number is stamped on your key as shown in the illustration Record this number in the space provided for reference in case you need a new key EMU25220 Emission control information EMU25230 North American models This engine conforms to U S Environmental Protection Agency EPA regulations for ma rine SI engines See ...

Page 8: ...dentifies engines that meet the Air Resources Board s 2001 ex haust emission standards Engines meeting these standards have 75 lower emissions than conventional carbureted two stroke en gines These engines are equivalent to the U S EPA s 2006 standards for marine en gines EMU25290 Two Stars Very Low Emission The two star label identifies engines that meet the Air Resources Board s 2004 exhaust emi...

Page 9: ... whenever boat ing At a minimum children and non swim mers should always wear PFDs and everyone should wear PFDs when there are potentially hazardous boating condi tions Gasoline is highly flammable and its va pors are flammable and explosive Handle and store gasoline carefully Make sure there are no gas fumes or leaking fuel be fore starting the engine This product emits exhaust gases which conta...

Page 10: ... before starting engine except 2HP Do not touch or remove electrical parts when starting or during operation Keep hands hair and clothes away from flywheel and other rotating parts while engine is running EMU25411 Label WARNING EWM01280 Use only a counterclockwise rotation propeller with this engine Counterclockwise propellers are marked with a letter L after the size in dication The wrong type of...

Page 11: ... rule is called Rule 2 in the International Rules and says In obeying and construing these rules due re gard shall be had to all dangers of navigation and collision and to any special circumstanc es which may render a departure from the above rules necessary in order to avoid im mediate danger In other words follow the standard rules ex cept when a collision will occur unless both vessels try to a...

Page 12: ...d other vessels Narrow channels and bends When navigating in narrow channels you should keep to the right when it is safe and practical to do so If the operator of a power driven vessel is preparing to go around a bend that may obstruct the view of other water vessels the operator should sound a pro longed blast on the whistle 4 to 6 seconds If another vessel is around the bend it too should sound...

Page 13: ...s are passed on the starboard right side when proceeding from open water into port and black buoys are to port left side When navi gating out of port your position with respect to the buoys should be reversed red buoys should be to port and black buoys to star board Many bodies of water used by boaters are en tirely within the boundaries of a particular state The Uniform State Waterway Marking Sys...

Page 14: ...0010 GASOLINE AND ITS VAPORS ARE HIGH LY FLAMMABLE AND EXPLOSIVE Do not smoke when refueling and keep away from sparks flames or other sources of ignition Stop engine before refueling Refuel in a well ventilated area Refuel portable fuel tanks off the boat ZMU01708 ...

Page 15: ...line or premium unleaded fuel Gasohol There are two types of gasohol gasohol con taining ethanol and that containing methanol Gasohol containing ethanol can be used if ethanol content does not exceed 10 and the fuel meets minimum octane ratings Yamaha does not recommended gasohol containing methanol because it can cause fuel system damage or engine performance problems EMU25680 Engine oil CAUTION ...

Page 16: ...r operating load a smaller pitch propeller is more suitable as it enables the correct engine speed to be main tained Conversely a larger pitch propeller is more suitable for a smaller operating load Yamaha dealers stock a range of propellers and can advise you and install a propeller on your outboard that is best suited to your appli cation NOTE Select a propeller which will allow the engine to re...

Page 17: ...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 ...

Page 18: ...switches are mounted on the remote control box 1 Top cowling 2 Top cowling lock lever s 3 Anti cavitation plate 4 Trim tab anode 5 Propeller 6 Cooling water inlet 7 Clamp bracket 8 Flushing device 9 Power trim and tilt switch 10 Remote control box side mount type 11 Remote control box binnacle mount type 12 Switch panel for use with binnacle type 13 Digital speedometer 14 Digital tachometer 15 Fue...

Page 19: ...ck trigger up EMU26210 Neutral throttle lever To open the throttle without shifting into either forward or reverse put the remote control le ver in the neutral position and lift the neutral throttle lever 2 Remote control lever 3 Neutral interlock trigger 4 Neutral throttle lever 5 Main switch choke switch 6 Engine stop lanyard switch 7 Throttle friction adjuster 1 Remote control lever 2 Power tri...

Page 20: ... 35 After using the free accelerator return the remote control lever to the neutral position The free accelerator button will return auto matically to its set position The remote con trol will then engage forward and reverse normally EMU25970 Throttle friction adjuster A friction device provides adjustable resis tance to movement of the throttle grip or the remote control lever and can be set acco...

Page 21: ...ating Do not attach the lanyard to clothing that could tear loose Do not route the lanyard where it could become entan gled preventing it from functioning Avoid accidentally pulling the lanyard during 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 forwar...

Page 22: ... using the power trim and tilt switch see pages 34 and 36 EMU26150 Power trim and tilt switch on bottom engine cowling The power trim and tilt switch is located on the side of the bottom engine cowling Pressing the switch up trims the outboard motor up then tilts it up Pressing the switch down tilts the outboard motor down and trims it down When the switch is released the outboard motor will stop ...

Page 23: ...es 34 and 36 EMU26240 Trim tab with anode The trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force WARNING EWM00840 An improperly adjusted trim tab could cause difficult steering Always test run af ter the trim tab has been installed or re placed to be sure steering is correct Be sure you have tightened the bolt aft...

Page 24: ...p the lock lever s and lift off the cowling When in stalling the cowling check to be sure it fits properly in the rubber seal Then lock the cowling by moving the lever s downward EMU26460 Flushing device This device is used to clean the cooling water passages of the motor using a garden hose and tap water NOTE For details on usage see page 43 EMU26490 Digital tachometer The tachometer shows the en...

Page 25: ...ine oil level Use the oil dipstick to check the remain ing oil quantity For further information see page 29 EMU26581 Overheat warning indicator digital type If the engine temperature rises too high the warning indicator will start to blink For further information on reading the indicator see page 25 CAUTION ECM00050 Do not continue to run the engine if the overheat warning indicator is on Serious ...

Page 26: ...ws the trim angle of your out board motor NOTE Memorize the trim angles that work best for your boat under different conditions Adjust the trim angle to the desired using the pow er trim and tilt switch If the trim angle of your motor exceeds the trim operating range the top segment on the trim meter display will blink EMU26650 Hour meter digital type This meter shows the number of hours the en gi...

Page 27: ... kept in memory by bat tery power The stored data will be lost if the battery is disconnected EMU26700 Clock Press the mode button repeatedly until the indicator on the face of the gauge points to time To set the clock be sure the gauge is in the time mode Press the set button the hour display will begin blinking Press the mode button until the desired hour is displayed Press the set button again ...

Page 28: ...ng indicator If battery voltage drops the display will auto matically turn on and begin to blink CAUTION ECM00870 Get back to the port soon if a warning de vice has activated For charging the bat tery consult your Yamaha dealer EMU26740 Fuel management meter The fuel management meter shows the state of the fuel consumption while the engine is running NOTE After the main switch is first turned on a...

Page 29: ...fuel flow of both engines for port and starboard will also be displayed to indicate both the port and starboard engines NOTE The fuel flow meter displays gallons hour or liters hour according to operator prefer ence Select the desired unit of measure ment by setting the selector switch on the back of the gauge during installation The fuel consumption meter and fuel econ omy meter will indicate the...

Page 30: ...use of water currents sea swells and the condition of the water speed sensor partially plugged or dam aged Individual engines may slightly vary in their fuel consumption due to manufacturing variations These variations can be even greater if the engines are of different year models In addition variations in propellers even of the same basic dimensions of the same design can also cause a slight var...

Page 31: ...s activated Consult your Yamaha dealer if the problem cannot be located and corrected EMU26821 Overheat warning twin engines This engine has an overheat warning device If the engine temperature rises too high the warning device will activate Activation of warning device The engine speed will automatically de crease to about 2000 r min The overheat warning indicator will light The buzzer will sound...

Page 32: ...ine speed will automatically de crease to about 2000 r min The low oil pressure warning indicator will light The buzzer will sound If the warning system has activated stop the engine 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 warning device does not switch off consult your Yamaha dealer CAUTION ECM00100 Do not continue to run the en...

Page 33: ...at does not have a capacity plate consult the boat manufacturer The information presented in this sec tion is intended as reference only It is not possible to provide complete in structions for every possible boat and motor combination Proper mounting depends in part on experience and the specific boat and motor combination WARNING EWM00830 Improper mounting of the outboard motor could result in h...

Page 34: ...manufacturer for further information on determining the prop er mounting height For instructions on setting the trim angle of the outboard motor see page 34 EMU27020 Breaking in engine Your new engine requires a period of break in to allow mating surfaces of moving parts to wear in evenly Correct break in will help en sure proper performance and longer engine life CAUTION ECM00140 Failure to follo...

Page 35: ...l free play Look for loose or damaged connections Check operation of the starter and stop switches when the outboard motor is in the water EMU27150 Engine Check the engine and engine mounting Look for loose or damaged fasteners Check the propeller for damage Check that the battery is in good condition and the battery connections are secure EMU27161 Checking the engine oil level 1 Put the outboard ...

Page 36: ... This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which could cause brain damage or death when inhaled Symp toms include nausea dizziness and drowsiness Keep cockpit and cabin ar eas well ventilated Avoid blocking ex haust outlets 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 or a fuel cock on the boat ...

Page 37: ...people and objects in the boat to be thrown forward 3 Turn the main switch to on NOTE Dual engine users When the main switch is turned on the buzzer operates for a few sec onds then stops automatically The buzzer also operates if one of the engines stalls 4 Turn the main switch to start and hold it for a maximum of 5 seconds 5 Immediately after the engine starts re lease the main switch to return ...

Page 38: ... be found A continuous flow of water from the pilot hole shows that the water pump is pumping water through the cooling pas sages If water is not flowing out of the pilot hole at all times while the engine is running overheating and serious dam age could occur Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked Consult your Yamaha ...

Page 39: ...ottle more than half Other wise the boat could become unstable which could result in loss of control and an accident If equipped tiller control 1 Place the throttle grip in the fully closed position 2 Move the gear shift lever quickly and firm ly from neutral to reverse If equipped remote control Pull up the neutral interlock trigger if equipped and move the remote control lever quickly and firmly...

Page 40: ...boat engine and propeller Correct trim is also af fected by variables such as the load in the boat sea conditions and running speed WARNING EWM00740 Excessive trim for the operating condi tions either trim up or trim down can cause boat instability and can make steer ing the boat more difficult This increases the possibility of an accident If the boat begins to feel unstable or is hard to steer sl...

Page 41: ...ow up attitude results in less drag greater stability and effi ciency This is generally when the keel line of the boat is up about 3 to 5 degrees With the bow up the boat may have a greater tenden cy to steer to one side or the other Compen sate for this as you steer The trim tab can also be adjusted to help offset this effect When the bow of the boat is down it is easier to accelerate from a stan...

Page 42: ...e clear of the out board motor when tilting up and down also be careful not to pinch any body parts between the drive unit and engine bracket WARNING EWM00250 Leaking fuel is a fire hazard If there is a fuel joint on the outboard motor discon nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes Otherwise fuel may leak CAUTION ECM00240 Before tilting th...

Page 43: ...d tilt switch down to retract the trim rods CAUTION ECM00250 Be sure to retract the trim rods completely during mooring This protects the rods from marine growth and corrosion which could damage the power trim and tilt mechanism EMU28050 Procedure for tilting down power trim and tilt power tilt models Power trim and tilt model power tilt model 1 Push the power tilt power trim and tilt switch up un...

Page 44: ... soon as the boat is back in deeper water CAUTION ECM00260 Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when set ting up for and cruising in shallow water Otherwise severe damage from overheat ing can result EMU28181 Procedure for power trim and tilt power tilt models 1 Place the gear shift lever in neutral 2 Slightly tilt th...

Page 45: ...ing water passages with fresh water to prevent them from becoming clogged with salt deposits NOTE For cooling system flushing instructions see page 41 Cruising in turbid water Yamaha strongly recommends that you use the optional chromium plated water pump kit if you use the outboard motor in turbid mud dy water conditions ...

Page 46: ...learance cold engine EX 0 31 0 37 mm 0 0122 0 0146 in Battery Min cold cranking amps CCA SAE 512 0 A Min marine cranking amps MCA ABYC 675 0 A Min reserve capacity RC SAE 182 minutes Alternator output for battery DC 35 0 A Starting carburetion system Electronic fuel injection Drive unit Gear positions Forward neutral reverse Gear ratio 2 00 28 14 Trim and tilt system Power trim and tilt Propeller ...

Page 47: ...in this position then trailer the outboard motor in the tilt posi tion using a motor support device such as a transom saver bar Consult your Yamaha dealer for further details EMU30060 Storing outboard motor When storing your Yamaha outboard motor for prolonged periods of time 2 months or longer several important procedures must be performed to prevent excessive damage It is advisable to have your ...

Page 48: ...mandato ry to prevent excessive engine damage due to rust Perform the flushing and fog ging at the same time WARNING EWM00090 Do not touch or remove electrical parts when starting or during operation Keep hands hair and clothes away from the flywheel and other rotating parts while the engine is running NOTE When using the flushing attachment main tain adequate water pressure and a steady water flo...

Page 49: ...beaten egg or vegetable oil Get immediate medical attention Batteries also generate explosive hydro gen gas therefore you should always fol low these preventive measures Charge batteries in a well ventilated ar ea Keep batteries away from fire sparks or open flames for example welding equipment lighted cigarettes and so on DO NOT SMOKE when charging or han dling batteries KEEP BATTERIES AND ELECTR...

Page 50: ...which can cause serious overheating Be sure the connector is tightened securely on the fit ting after flushing the engine NOTE When flushing the engine with the boat in the water tilting up the outboard motor until it is completely out of the water will achieve better results For cooling system flushing instructions see page 41 EMU28450 Cleaning the outboard motor After use wash the exterior of th...

Page 51: ...cluding those to the emission control system must be per formed by an authorized Yamaha marine dealership A service manual is available for purchase through your Yamaha dealer for owners who have the mechanical skills tools and other equipment necessary to perform mainte nance not covered by this owner s manual EMU28510 Replacement parts If replacement parts are necessary use only genuine Yamaha p...

Page 52: ...tion replacement Anode s internal Inspection replacement Battery Inspection charging Cooling water passages Cleaning Cowling clamp Inspection Fuel filter can be disassembled Inspection cleaning Fuel system Inspection Gear oil Change Greasing points Greasing Idling speed EFI models Inspection adjustment PCV Pressure Control Valve Inspection Power trim and tilt unit Inspection Propeller and cotter p...

Page 53: ...n water after each use EMU28870 Maintenance Chart 2 EMU28910 NOTE When using lead or high sulfur gasoline inspecting valve clearance may be required more fre quently than every 500 hours Item Actions Every 500 hours 2 5 years 1000 hours 5 years Timing belt Replacement Valve clearance DOHC Inspection adjustment ...

Page 54: ...ld lead to explosion or fire The spark plug is an important engine compo nent and is easy to inspect The condition of the spark plug can indicate something about the condition of the engine For example 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 di agnose any problems yourself Instead take the outb...

Page 55: ...e is 1 4 to 1 2 a turn past finger tight Have the spark plug adjusted to the cor rect torque as soon as possible with a torque wrench EMU28960 Checking fuel system WARNING EWM00900 Gasoline and its vapors are highly flam mable and explosive Keep away from sparks cigarettes flames or other sourc es of ignition WARNING EWM00910 Leaking fuel can result in fire or explosion Check for fuel leakage regu...

Page 56: ...ocedure will allow some fuel to spill Catch fuel in a rag Wipe up any spilled fuel immediately The fuel filter must be reassembled carefully with the O ring filter cup and hoses in place Improper assembly or replacement could result in a fuel leak which could result in a fire or explosion hazard EMU29960 Cleaning fuel filter 1 Loosen the filter cup ring nut 2 Remove the filter cup catching any spi...

Page 57: ... result in an accident CAUTION ECM00490 This procedure must be performed while the outboard motor is in the water A flush ing attachment or test tank can be used A diagnostic tachometer should be used for this procedure Results may vary depending on whether testing is conducted with the flushing attachment in a test tank or with the outboard motor in the water 1 Start the engine and allow it to wa...

Page 58: ...le container that holds a larger amount than the engine oil capaci ty Loosen and remove the drain screw while holding the container under the drain hole Then remove the oil filler cap Let the oil drain completely Wipe up any spilled oil immediately 3 Put a new gasket on the oil drain screw Apply a light coat of oil to the gasket and install the drain screw NOTE If a torque wrench is not available ...

Page 59: ...r Change the oil more often when operating the engine under adverse conditions such as extended trolling EMU29110 Checking wiring and connectors Check that each grounding wire is properly secured Check that each connector is engaged se curely EMU29120 Exhaust leakage Start the engine and check that no exhaust leaks from the joints between the exhaust cover cylinder head and body cylinder EMU29130 ...

Page 60: ...k the tilt support lever 8 Tilt the outboard motor down Check that the tilt rod and trim rods operate smooth ly NOTE Consult your Yamaha dealer if any operation is abnormal EMU29170 Checking propeller WARNING EWM00320 You could be seriously injured if the en gine accidentally starts when you are near the propeller Before inspecting removing or install ing the propeller remove the spark plug caps f...

Page 61: ...replaced EMU29190 Removing the propeller 1 Straighten the cotter pin and pull it out us ing a pair of pliers 2 Remove the propeller nut washer and spacer if equipped 3 Remove the propeller and thrust washer EMU29240 Installing the propeller WARNING EWM00770 On counter rotation models be sure to use a propeller intended for counterclock wise rotation These propellers are identi fied with the letter...

Page 62: ...sure the outboard motor is securely fastened to the transom or a stable stand You could be severely injured if the outboard motor falls on you Never get under the lower unit while it is tilted even when the tilt support lever or knob is locked Severe injury could oc cur if the outboard motor accidentally falls 1 Tilt the outboard motor so that the gear oil drain screw is at the lowest point possi ...

Page 63: ...lly Remove scales from the surfaces of the anodes Consult a Yamaha dealer for replacement of external anodes CAUTION ECM00720 Do not paint anodes as this would render them ineffective NOTE Inspect ground leads attached to external an odes on equipped models Consult a Yamaha dealer for inspection and replacement of inter nal anodes attached to the power unit EMU29320 Checking battery for electric s...

Page 64: ...rals harmful to a battery and should not be used for topping up 1 Check the electrolyte level at least once a month Fill to the manufacturer s recom mended level when necessary Top up only with distilled water or pure de ion ized water suitable to use in batteries 2 Always keep the battery in a good state of charge Installing a voltmeter will help you monitor your battery If you will not use the b...

Page 65: ...terminals of the starting battery and accessory battery See the il lustrations of the wiring connections This cable must be made from wire thicker than the starting battery cable WARNING EWM00600 Use of smaller wire could lead to a fire NOTE If connecting an accessory battery consult your Yamaha dealer about correct wiring EMU29370 Disconnecting the battery Disconnect the BLACK cable from the NEGA...

Page 66: ...t bottom should be kept as clean of marine growth as possible If necessary the boat bot tom can be coated with an anti fouling paint approved for your area to inhibit marine growth Do not use anti fouling paint which includes copper or graphite These paints can cause more rapid engine corrosion ...

Page 67: ...ced by a Yamaha 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 30 Q Has fuel pump malfunctioned A Have serviced by a Yamaha dealer Q Are spa...

Page 68: ...Yamaha dealer 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 ca...

Page 69: ...ect spark plug 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 oth er 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 ...

Page 70: ...ly dam aged 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 Inspect the control system and all compo nents for damage Also inspect the boat for damage 3 Whether damage is found or not return to the nearest harbor slowly and careful ly 4 ...

Page 71: ... new fuse immediately blows again EMU29520 Power trim and tilt will not operate If the engine cannot be tilted up or down with the power trim and tilt the power tilt because of a discharged battery or a failure with the power trim and tilt unit the power tilt the en gine can be tilted manually 1 Loosen the manual valve screw by turn ing it counterclockwise until it stops 1 Electrical cover 2 Fuse ...

Page 72: ...minimize engine dam age EMU29970 Procedure 1 Thoroughly wash away mud salt sea weed and so on with fresh water 2 Remove the spark plugs and face the spark plug holes downward to allow any water mud or contaminants to drain 3 Drain the fuel from the vapor separator fuel filter and fuel line 4 Spray Fogging Oil or supply engine oil through the intake manifold and spark plug holes while rotating the ...

Page 73: ...Consumer information 67 EMU29810 Important warranty information for U S A and Canada ...

Page 74: ...Consumer information 68 ...

Page 75: ...Consumer information 69 EMU29830 YAMAHA MOTOR CORPORATION U S A FOUR STROKE OUTBOARD MOTOR THREE YEAR LIMITED WARRANTY ...

Page 76: ...Consumer information 70 ...

Page 77: ...Consumer information 71 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U S A OR CANADA ...

Page 78: ......

Page 79: ...pliquée à l acheteur au détail OUTBOARD MOTOR MODEL AND SERIAL NUMBER From I D label on clamp bracket MODÉLE ET NO DE SÉRIE DU MOTEUR HORS BORD sur l étiquette d identification de la presse de fixation For Dealer Use Only A l usage du concessionnaire YAMAHA DEALER NUMBER NO DU CONCESSIONNAIRE YAMAHA DEALER NAME NOM DU CONCESSIONNAIRE DATE SOLD DATE DE LIVRAISON OWNER S NAME NOM DU PROPRIÉTAIRE ADD...

Page 80: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT ...

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