F50F60F70T50T60

OWNERS MANUAL

6C1-28199-19

U.S.A.EditionLIT-18626-08-72

qRead this manual carefully before operating this outboard motor.

6C1-9-19 Hyoshi.indd 1 2010/02/18 14:41:36

EMU25052

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.

cover21.fm 1

6C1-9-19 Hyoshi.indd 2 2010/02/18 14:41:36

Important manual informationEMU31285

To the ownerThank you for selecting a Yamaha outboardmotor. This Owners Manual contains infor-mation needed for proper operation, mainte-nance and care. A thorough understandingof these simple instructions will help you ob-tain maximum enjoyment from your newYamaha. If you have any question about theoperation or maintenance of your outboardmotor, please consult a Yamaha dealer.In this Owners Manual particularly importantinformation is distinguished in the followingways.

: This is the safety alert symbol. It isused to alert you to potential personal injuryhazards. Obey all safety messages that fol-low this symbol to avoid possible injury ordeath.

WARNINGEWM00781

A WARNING indicates a hazardous situa-tion which, if not avoided, could result indeath or serious injury.

NOTICEECM00701

A NOTICE indicates special precautionsthat must be taken to avoid damage to theoutboard motor or other property.

TIP:A TIP provides key information to make pro-cedures easier or clearer.

Yamaha continually seeks advancements inproduct design and quality. Therefore, whilethis manual contains the most current prod-uct information available at the time of print-ing, there may be minor discrepanciesbetween your machine and this manual. If

there is any question concerning this manu-al, please consult your Yamaha dealer.

TIP:The F50TR, F60TR, F70A, F70HA, T50TR,T60TR and the standard accessories areused as a base for the explanations and illus-trations in this manual. Therefore someitems may not apply to every model.EMU25112

F50, F60, F70, T50, T60OWNERS MANUAL

2010 by Yamaha Motor Corporation, U.S.A.1st edition, February 2010

All rights reserved.Any reprinting or unauthorized usewithout the written permission ofYamaha Motor Corporation, U.S.A.

is expressly prohibited.Printed in Japan

P/N LIT-18626-08-72

6C1-9-19.book 1

Table of contentsSafety information............................. 1

Outboard motor safety ..................... 1Propeller............................................ 1Rotating parts.................................... 1Hot parts ........................................... 1Electric shock.................................... 1Power trim and tilt ............................. 1Engine shut-off cord (lanyard)........... 1Gasoline............................................ 1Gasoline exposure and spills ............ 2Carbon monoxide.............................. 2Modifications ..................................... 2

Boating safety .................................. 2Alcohol and drugs ............................. 2Personal flotation devices ................. 2People in the water ........................... 2Passengers ....................................... 2Overloading....................................... 2Avoid collisions ................................. 3Weather ............................................ 3Accident reporting ............................. 3Boat education and training .............. 3Passenger training ............................ 4Boating safety publications ............... 4Laws and regulations ........................ 4

Boating organizations....................... 4Basic boating rules

(Rules of the road) ......................... 4Steering and sailing rules and

sound signals.................................. 4Rules when encountering vessels .... 5Other special situations..................... 6

General information .......................... 9Identification numbers record........... 9

Outboard motor serial number .......... 9Key number....................................... 9

Read manuals and labels............... 10Warning labels ............................... 10

Specifications and requirements.................................... 14

Specifications ................................. 14Remote control requirements......... 16Battery requirements...................... 16

Specifications of Battery ................. 16Mounting battery ............................. 16

Multiple batteries ............................. 16Propeller selection ......................... 17Start-in-gear protection .................. 17Engine oil requirements ................. 18Fuel requirements .......................... 18

Gasoline .......................................... 18Ring Free Fuel Additive................... 19

Anti-fouling paint ............................ 19Motor disposal requirements.......... 19Emergency equipment ................... 19Emission control information.......... 19

North American models................... 19Star labels ....................................... 20

Components .................................... 22Components diagram..................... 22

Fuel tank ......................................... 25Fuel joint.......................................... 25Fuel gauge ...................................... 26Fuel tank cap................................... 26Air vent screw.................................. 26Remote control box ......................... 26Remote control lever ....................... 26Neutral interlock trigger ................... 26Neutral throttle lever........................ 26Tiller handle..................................... 27Gear shift lever................................ 27Throttle grip ..................................... 27Throttle indicator ............................. 27Throttle friction adjuster................... 28Engine shut-off cord (lanyard)

and clip.......................................... 28Engine stop button .......................... 29Main switch ..................................... 29Steering friction adjuster ................. 29Power trim and tilt switch on

remote control or tiller handle ....... 30Power trim and tilt switch on

bottom cowling .............................. 31Variable trolling RPM switches........ 31Trim tab with anode......................... 32Tilt support lever for power trim

and tilt model................................. 32Cowling lock lever(s) (turn type)...... 33Flushing device ............................... 33Fuel filter/Water separator............... 33

6C1-9-19.book 1

Table of contentsInstruments and indicators ............ 35

Digital tachometer .......................... 35Tachometer ..................................... 35Trim meter....................................... 35Hour meter ...................................... 35Low oil pressure-alert indicator ....... 36Overheat-alert indicator .................. 36

Digital speedometer ....................... 36Speedometer .................................. 36Fuel gauge ...................................... 37Trip meter / Clock / Voltmeter ......... 37Fuel level-alert indicator .................. 38Low battery voltage-alert

indicator ........................................ 38Analog tachometer ......................... 38

Low oil pressure-alert indicator ....... 38Overheat-alert indicator .................. 39

Analog trim meter........................... 39Command link multifunction

meters .......................................... 39Command link multifunction

tachometers ................................. 40Start-up checks ............................... 41Adjusting trolling speed................... 41Low oil pressure-alert...................... 41Overheat alert ................................. 42Water separator alert ...................... 42Engine trouble alert ......................... 43Low battery voltage-alert................. 43

Command link multifunction speed & fuel meters ..................... 44

Command link multifunction speedometers .............................. 45

Command link multifunction fuel management meters .................... 45

Engine control system.................... 47Alert system ................................... 47

Overheat alert ................................. 47Low oil pressure alert ...................... 47

Installation ....................................... 49Installation ...................................... 49

Mounting the outboard motor .......... 49Operation ......................................... 51

First-time operation ........................ 51Fill engine oil ................................... 51

Breaking in engine .......................... 51Getting to know your boat ............... 51

Checks before starting engine ....... 51Fuel level......................................... 51Remove the top cowling.................. 52Fuel system..................................... 52Controls........................................... 52Engine shut-off cord (lanyard)......... 53Engine oil ........................................ 53Engine ............................................. 54Flushing device ............................... 54Install top cowling............................ 54Power trim and tilt system ............... 55Battery............................................. 55

Filling fuel....................................... 55Operating engine ........................... 56

Sending fuel (portable tank) ............ 57Starting engine ................................ 58

Checks after starting engine .......... 60Cooling water .................................. 60

Warming up engine........................ 61Manual start and electric start

models .......................................... 61Checks after engine warm up ........ 61

Shifting ............................................ 61Stop switches .................................. 61

Shifting ........................................... 61Stopping boat................................. 62Trolling ........................................... 63

Adjusting trolling speed ................... 63Stopping engine............................. 63

Procedure........................................ 63Trimming outboard motor............... 64

Adjusting trim angle (Power trim and tilt)....................... 65

Adjusting boat trim .......................... 66Tilting up and down........................ 66

Procedure for tilting up (power trim and tilt models)........... 67

Procedure for tilting down (power trim and tilt models)........... 68

Shallow water................................. 69Power trim and tilt models............... 69

Cruising in other conditions............ 70Maintenance .................................... 71

6C1-9-19.book 2

Table of contentsTransporting and storing outboard

motor ............................................ 71Storing outboard motor ................... 71Procedure ....................................... 72Lubrication ...................................... 73Cleaning and anticorrosion

measures ...................................... 73Flushing power unit ......................... 73Cleaning the outboard motor .......... 75Checking painted surface of

outboard motor ............................. 75Periodic maintenance..................... 75

Replacement parts .......................... 75Maintenance interval guidelines...... 76Maintenance chart 1 ....................... 77Maintenance chart 2 ....................... 79Greasing ......................................... 80Cleaning and adjusting spark

plug ............................................... 82Inspecting idle speed ...................... 83Changing engine oil ........................ 83Inspecting wiring and connectors.... 85Checking propeller .......................... 85Removing propeller ......................... 86Installing propeller ........................... 86Changing gear oil ............................ 87Cleaning fuel tank ........................... 88Inspecting and replacing

anode(s)........................................ 89Checking battery

(for electric start models) .............. 89Connecting the battery .................... 90Disconnecting the battery ............... 91

Trouble Recovery............................ 92Troubleshooting ............................. 92Temporary action in emergency..... 95

Impact damage ............................... 95Replacing fuse ................................ 95Power trim and tilt will not

operate.......................................... 96Water separator-alert indicator

blinks while cruising ...................... 97Starter will not operate .................. 100Emergency starting engine ........... 100

Treatment of submerged motor....101

Consumer information ................. 102YAMAHA MOTOR

CORPORATION, U.S.A. FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY .............................. 102

IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA............. 104

6C1-9-19.book 3

1Safety informationEMU33622

Outboard motor safetyObserve these precautions at all times.EMU36501

PropellerPeople can be injured or killed if they comein contact with the propeller. The propellercan keep moving even when the motor is inneutral, and sharp edges of the propeller cancut even when stationary. Stop the engine when a person is in the

water near you. Keep people out of reach of the propeller,

even when the engine is off.EMU33630

Rotating partsHands, feet, hair, jewelry, clothing, PFDstraps, etc. can become entangled with inter-nal rotating parts of the engine, resulting inserious injury or death.Keep the top cowling in place whenever pos-sible. Do not remove or replace the cowlingwith the engine running.Only operate the engine with the cowling re-moved according to the specific instructionsin the manual. Keep hands, feet, hair, jewel-ry, clothing, PFD straps, etc. away from anyexposed moving parts.EMU33640

Hot partsDuring and after operation, engine parts arehot enough to cause burns. Avoid touchingany parts under the top cowling until the en-gine has cooled.EMU33650

Electric shockDo not touch any electrical parts while start-ing or operating the engine. They can causeshock or electrocution.EMU33660

Power trim and tiltBody parts can be crushed between the mo-

tor and the clamp bracket when the motor istrimmed or tilted. Keep body parts out of thisarea at all times. Be sure no one is in thisarea before operating the power trim and tiltmechanism.The power trim and tilt switches operateeven when the main switch is off. Keep peo-ple be away from the switches wheneverworking around the motor.Never get under the lower unit while it is tilt-ed, even when the tilt support lever is locked.Severe injury could occur if the outboard mo-tor accidentally falls.EMU33671

Engine shut-off cord (lanyard)Attach the engine shut-off cord so that theengine stops if the operator falls overboardor leaves the helm. This prevents the boatfrom running away under power and leavingpeople stranded, or running over people orobjects.Always attach the engine shut-off cord to asecure place on your clothing or your arm orleg while operating. Do not remove it to leavethe helm while the boat is moving. Do not at-tach the cord to clothing that could tearloose, or route the cord where it could be-come entangled, preventing it from function-ing.Do not route the cord where it is likely to beaccidentally pulled out. If the cord is pulledduring operation, the engine will shut off andyou will lose most steering control. The boatcould slow rapidly, throwing people and ob-jects forward.EMU33810

GasolineGasoline and its vapors are highly flam-mable and explosive. Always, refuel ac-cording to the procedure on page 56 toreduce the risk of fire and explosion.

6C1-9-19.book 1

Safety information

2

EMU33820

Gasoline exposure and spillsTake care not to spill gasoline. If gasolinespills, wipe it up immediately with dry rags.Dispose of rags properly.If any gasoline spills onto your skin, immedi-ately wash with soap and water. Changeclothing if gasoline spills on it.If you swallow gasoline, inhale a lot of gaso-line vapor, or get gasoline in your eyes, getimmediate medical attention. Never siphonfuel by mouth.EMU33900

Carbon monoxideThis product emits exhaust gases which con-tain carbon monoxide, a colorless, odorlessgas which may cause brain damage or deathwhen inhaled. Symptoms include nausea,dizziness, and drowsiness. Keep cockpit andcabin areas well ventilated. Avoid blockingexhaust outlets.EMU33780

ModificationsDo not attempt to modify this outboard mo-tor. Modifications to your outboard motormay reduce safety and reliability, and renderthe outboard unsafe or illegal to use.EMU33740

Boating safetyThis section includes a few of the many im-portant safety precautions that you shouldfollow when boating.EMU33710

Alcohol and drugsNever operate after drinking alcohol or takingdrugs. Intoxication is one of the most com-mon factors contributing to boating fatalities.EMU33720

Personal flotation devicesHave an approved personal flotation device(PFD) on board for every occupant. Yamaharecommends that you must wear a PFD

whenever boating. At a minimum, childrenand non-swimmers should always wearPFDs, and everyone should wear PFDswhen there are potentially hazardous boat-ing conditions.EMU33731

People in the waterAlways watch carefully for people in the wa-ter, such as swimmers, skiers, or divers,whenever the engine is running. Whensomeone is in the water near the boat, shiftinto neutral and stop the engine.Stay away from swimming areas. Swimmerscan be hard to see.The propeller can keep moving even whenthe motor is in neutral. Stop the engine whena person is in the water near you.EMU33751

PassengersConsult your boat manufacturers instruc-tions for details about appropriate passengerlocations in your boat and be sure all pas-sengers are positioned properly before ac-celerating and when operating above an idlespeed. Standing or sitting in non-designatedlocations may result in being thrown eitheroverboard or within the boat due to waves,wakes, or sudden changes in speed or direc-tion. Even when people are positioned prop-erly, alert your passengers if you must makeany unusual maneuver. Always avoid jump-ing waves or wakes.EMU33760

OverloadingDo not overload the boat. Consult the boatcapacity plate or boat manufacturer for max-imum weight and number of passengers. Besure that weight is properly distributed ac-cording to the boat manufacturers instruc-tions. Overloading or incorrect weightdistribution can compromise the boats han-dling and lead to an accident, capsizing or

6C1-9-19.book 2

Safety information

3

swamping.EMU33772

Avoid collisionsScan constantly for people, objects, and oth-er boats. Be alert for conditions that limit yourvisibility or block your vision of others.

Operate defensively at safe speeds andkeep a safe distance away from people, ob-jects, and other boats. Do not follow directly behind other boats or

waterskiers. Avoid sharp turns or other maneuvers that

make it hard for others to avoid you or un-derstand where you are going.

Avoid areas with submerged objects orshallow water.

Ride within your limits and avoid aggres-sive maneuvers to reduce the risk of lossof control, ejection, and collision.

Take early action to avoid collisions. Re-member, boats do not have brakes, andstopping the engine or reducing throttlecan reduce the ability to steer. If you arenot sure that you can stop in time beforehitting an obstacle, apply throttle and turnin another direction.

EMU33790

WeatherStay informed about the weather. Checkweather forecasts before boating. Avoidboating in hazardous weather.

EMU33800

Accident reportingBoat operators are required by law to file aBoating Accident Report with their stateboating law enforcement agency if their boatis involved in any of the 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 areport is necessary.EMU33870

Boat education and trainingOperators should take a boating safetycourse. This may be required in your state.Many of the organizations listed in the nextsection can provide information about cours-es in your area.You may also want to consider an Internet-based program for basic boater education.The Online Boating Safety Course providedby the BoatU.S. Foundation, is approved bythe National Association of State BoatingLaw Administrators (NASBLA) and recog-nized by the United States Coast Guard.Most, but not all, states accept this course tomeet their minimum requirements. While itcannot replace an in-depth course such asone offered by the U.S. Coast Guard, U.S.Power Squadron, or other organization, thisonline course does provide a general over-view of the basics in boating safety, require-ments, navigation, and operation. Uponsuccessful completion of the course, theuser can download a certificate of comple-tion immediately or, for a small charge, re-quest one by mail. To take this free course,go to boatus.org.

ZMU06025

6C1-9-19.book 3

Safety information

4

EMU33880

Passenger trainingMake sure at least one other passenger istrained to operate the boat in the event of anemergency.EMU33890

Boating safety publicationsBe informed about boating safety. Additionalpublications and information can be obtainedfrom many boating organizations.EMU33590

Laws and regulationsKnow the marine laws and regulations whereyou will be boating- and obey them. Severalsets of rules prevail according to geographiclocation, but all are basically the same as theInternational Rules of the Road. The rulespresented in the following section are con-densed- and have been provided for yourconvenience only.Contact the U.S. Coast Guard, the NationalAssociation of State Boating Law Adminis-trators, or your local Power Squadron for acomplete set of rules governing the waters inwhich you will be using your boat.EMU33682

Boating organizationsThe following organizations provide boatingsafety training and information about boatingsafety and laws.

United States Coast GuardConsumer Affairs Staff (G-BC)Office of Boating, Public, and Consumer Af-fairsU.S. Coast Guard HeadquartersWashington, D.C. 20593-0001http://www.uscgboating.org/

United States Power Squadrons1-888-FOR-USPS (1-888-367-8777)http://www.usps.org/

Boat Owners Association of The UnitedStates1-800-336-BOAT (1-800-336-2628)http://www.boatus.com/

National Association of State BoatingLaw Administrators (NASBLA)1500 Leestown Road, Suite 330Lexington, KY 40511 859-225-9497http://www.nasbla.org/

National Marine Manufacturers Associa-tion (NMMA)200 East Randolph DriveSuite 5100Chicago, IL 60601http://www.nmma.org/

Marine Retailers Association of America155 N. Michigan Ave. Chicago,IL 60304http://www.mraa.com/

EMU33691

Basic boating rules (Rules of the road)

Just as there are rules that apply when youare driving on streets and highways, thereare waterway rules that apply when you aredriving your boat. These rules are used inter-nationally. (For U.S.A.: and are also en-forced by the United States Coast Guard andlocal agencies.) You should be aware ofthese rules, and follow them whenever youencounter another vessel on the water.EMU33700

Steering and sailing rules and sound signalsWhenever two vessels on the water meetone another, one vessel has the right-of-

6C1-9-19.book 4

Safety information

5

way; it is called the stand-on vessel. Thevessel that does not have the right-of-way iscalled the give-way or burdenedvessel.These rules determine which vessel has theright-of-way, and what each vessel shoulddo.

Stand-on vesselThe vessel with the right-of-way has the dutyto continue its course and speed, except toavoid an immediate collision. When youmaintain your direction and speed, the othervessel will be able to determine how best toavoid you.

Give-way vesselThe vessel that does not have the right-of-way has the duty to take positive and timelyaction to stay out of the way of the Stand-Onvessel. Normally, you should not cross infront of the vessel with the right-of-way. Youshould slow down or change directions brief-ly and pass behind the other vessel. Youshould always move in such a way that theoperator of the other vessel can see whatyou are doing. The general prudential rule This rule is called Rule 2 in the InternationalRules and says, In obeying and construing these rules dueregard shall be had to all dangers of naviga-tion and collision, and to any special circum-stances, which may render a departure fromthe above rules necessary in order to avoidimmediate danger.In other words, follow the standard rules ex-cept when a collision will occur unless bothvessels try to avoid each other. If that is thecase, both vessels become Give-Way vessels.

EMU25521

Rules when encountering vesselsThere are three main situations that you mayencounter with other vessels which couldlead to a collision unless the Steering Rulesare followed:Meeting: (you are approaching another ves-sel head-on)Crossing: (you are traveling across the oth-er vessels path)Overtaking: (you are passing or beingpassed by another vessel)In the following illustration, your boat is in thecenter. You should give the right-of-way toany vessels shown in white area (you are theGive-Way vessel). Any vessels in the shad-ed area must yield to you (they are the Give-Way vessels). Both you and the meetingvessel must alter course to avoid each other.

MeetingIf you are meeting another power vesselhead on, and are close enough to run the riskof collision, neither of you has the right-of-way Both of you should alter course to avoidan accident. You should keep the other ves-sel on your port (left) side. This rule doesntapply if both of you will clear one another ifyou continue on your set course and speed.

6C1-9-19.book 5

Safety information

6

CrossingWhen two power driven vessels are crossingeach others path close enough to run therisk of collision, the vessel which has the oth-er on the starboard (right) side must keep outof the way of the other. If the other vessel ison your right, you must keep out of its way;you are the Give-Way vessel. If the othervessel is on your port (left) side, rememberthat you should maintain course and direc-tion, provided the other vessel gives you theright-of-way as it should.

OvertakingIf you are passing another vessel, you arethe Give-Way vessel. This means that theother vessel is expected to maintain itscourse and speed. You must stay out of itsway until you are clear of it. Likewise, if an-other vessel is passing you, you shouldmaintain your speed and direction so that theother vessel can steer itself around you.

EMU25531

Other special situationsThere are three other rules you should beaware of when driving your boat around oth-er vessels.Narrow channels and bendsWhen navigating in narrow channels, youshould keep to the right when it is safe andpractical to do so. If the operator of a power-driven vessel is preparing to go around abend that may obstruct the view of other wa-ter vessels, the operator should sound a pro-longed blast on the whistle (4 to 6 seconds).If another vessel is around the bend, it tooshould sound the whistle. Even if no reply isheard, however, the vessel should still pro-ceed around the bend with caution. If younavigate such waters with your boat, you willneed to carry a portable air horn, availablefrom local marine supply stores.Fishing vessel right-of-wayAll vessels that are fishing with nets, lines ortrawls are considered to be fishing vesselsunder the International Rules. Vessels withtrolling lines are not considered fishing ves-sels. Fishing vessels have the right-of-wayregardless of position. Fishing vessels can-not, however, impede the passage of othervessels in narrow channels.Sailing vessel right-of-waySailing vessels should normally be given theright-of-way. The exceptions to this are:1. When the sailing vessel is overtaking the

power-driven vessel, the power-drivenvessel has the right-of-way.

2. Sailing vessels should keep clear of anyfishing vessel.

3. In a narrow channel, a sailing vesselshould not hamper the safe passage ofa power-driven vessel that can navigateonly in such a channel.

6C1-9-19.book 6

Safety information

7

Reading buoys and other markersThe waters of the United States are markedfor safe navigation by the lateral system ofbuoyage. Simply put, buoys and markershave an arrangement of shapes, colors,numbers and lights to show which side of thebuoy a boater should pass on when navigat-ing in a particular direction. The markings onthese buoys are oriented from the perspec-tive of being entered from seaward (the boat-er is going towards the port). This means thatred 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 of port, your posi-tion with respect to the buoys should be re-versed; red buoys should be to port andblack buoys to starboard.Many bodies of water used by boaters areentirely within the boundaries of a particularstate. The Uniform State Waterway MarkingSystem has been devised for these waters.This system uses buoys and signs with dis-tinctive shapes and colors to show regulatoryor advisory information. These markers arewhite with black letters and orange boarders.They signify speed zones, restricted areas,danger areas, and general information.Remember, markings may vary by geo-graphic location. Always consult local boat-ing authorities before driving your boat inunfamiliar waters.

6C1-9-19.book 7

Safety information

8

ZMU01708

6C1-9-19.book 8

9General informationEMU25171

Identification numbers recordEMU25183

Outboard motor serial numberThe outboard motor serial number isstamped on the label attached to the portside of the clamp bracket.Record your outboard motor serial number inthe spaces provided to assist you in orderingspare parts from your Yamaha dealer or forreference in case your outboard motor is sto-len.

EMU25190

Key numberIf a main key switch is equipped with the mo-tor, the key identification number is stampedon your key as shown in the illustration.Record this number in the space provided forreference in case you need a new key.

1. Outboard motor serial number location

1. Key number

6C1-9-19.book 9

General information

10

EMU33522

Read manuals and labelsBefore 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.EMU33832

Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements.F50, F60, T50, T60

1 2

3

ZMU05676

6C1-9-19.book 10

General information

11

F70

3

1 2

ZMU07102

6C1-9-19.book 11

General information

12

1 2

3

ZMU05670

6C1-9-19.book 12

General information

13

EMU33843

SymbolsThe following symbols mean as follows.

Notice/Warning

Read Owners Manual

Hazard caused by continuous rotation

Electrical hazard

Remote control lever/gear shift lever operat-ing direction, dual direction

Engine start/ Engine cranking

ZMU05696

ZMU05664

ZMU05665

ZMU05666

ZMU05667

ZMU05668

6C1-9-19.book 13

14

Specifications and requirementsEMU34520

SpecificationsTIP:(AL) stated in the specification data belowrepresents the numerical value for the alumi-num propeller installed.Likewise, (SUS) represents the value forstainless steel propeller installed and (PL)for plastic propeller installed.

TIP:* means, select the engine oil referring tothe chart of engine oil paragraph. For furtherinformation, see page 18.EMU2821J

Dimension:Overall length:

F50TR 706 mm (27.8 in)F60TR 706 mm (27.8 in)F70A 713 mm (28.1 in)T50TR 706 mm (27.8 in)T60TR 706 mm (27.8 in)

Overall width: F50TR 385 mm (15.2 in)F60TR 385 mm (15.2 in)F70A 386 mm (15.2 in)T50TR 385 mm (15.2 in)T60TR 385 mm (15.2 in)

Overall height L: F50TR 1414 mm (55.7 in)F60TR 1414 mm (55.7 in)F70A 1476 mm (58.1 in)T50TR 1455 mm (57.3 in)T60TR 1455 mm (57.3 in)

Transom height L: F50TR 527 mm (20.7 in)F60TR 527 mm (20.7 in)F70A 534 mm (21.0 in)T50TR 530 mm (20.9 in)T60TR 530 mm (20.9 in)

Weight (AL) L:

F50TR 113.0 kg (249 lb)F60TR 113.0 kg (249 lb)F70A 119.0 kg (262 lb)T50TR 118.0 kg (260 lb)T60TR 123.0 kg (271 lb)

Performance:Full throttle operating range:

F50TR 50006000 r/minF60TR 50006000 r/minF70A 53006300 r/minT50TR 50006000 r/minT60TR 50006000 r/min

Maximum output: F50TR 36.8 kW@5500 r/min (50 HP@5500 r/min)F60TR 44.1 kW@5500 r/min (60 HP@5500 r/min)F70A 51.5 kW@5800 r/min (70 HP@5800 r/min)T50TR 36.8 kW@5500 r/min (50 HP@5500 r/min)T60TR 44.1 kW@5500 r/min (60 HP@5500 r/min)

Idle speed (in neutral): 750 50 r/min

Engine:Type:

4-stroke LDisplacement:

996.0 cm3

Bore stroke: 65.0 75.0 mm (2.56 2.95 in)

Ignition system: TCI

Spark plug (NGK): F50TR DPR6EB-9F60TR DPR6EB-9F70A LKR7ET50TR DPR6EB-9T60TR DPR6EB-9

Spark plug gap:

6C1-9-19.book 14

Specifications and requirements

15

0.80.9 mm (0.0310.035 in)Control system:

Remote controlStarting system:

Electric starterStarting carburetion system:

Electronic fuel injectionValve clearance (cold engine) IN:

0.150.25 mm (0.00590.0098 in)Valve clearance (cold engine) EX:

0.250.35 mm (0.00980.0138 in)Min. cold cranking amps (CCA/SAE):

380.0 AMin. marine cranking amps (MCA/ABYC):

502.0 AMin. reserve capacity (RC/SAE):

124 minutesMaximum generator output:

F50TR 16 AF60TR 16 AF70A 15 AT50TR 16 AT60TR 16 A

Drive unit:Gear positions:

Forward-neutral-reverseGear ratio:

F50TR 1.85(24/13)F60TR 1.85(24/13)F70A 2.33(28/12)T50TR 2.33(28/12)T60TR 2.33(28/12)

Trim and tilt system: Power trim and tilt

Propeller mark: F50TR GF60TR GF70A KT50TR KT60TR K

Fuel and oil:Recommended fuel:

Regular unleaded gasolineMin. pump octane:

86Fuel tank capacity:

24 L (6.34 US gal, 5.28 Imp.gal)Recommended engine oil:

4-stroke outboard motor oilRecommended engine oil group 1*:

SAE 10W-30/10W-40/5W-30 API SE/SF/SG/SH/SJ/SL

Recommended engine oil group 2*: SAE 15W-40/20W-40/20W-50 API SH/SJ/SL

Total engine oil quantity (oil pan capacity): 2.5 L (2.64 US qt, 2.20 Imp.qt)

Lubrication: Wet sump

Recommended gear oil: Hypoid gear oil SAE#90

Gear oil quantity: F50TR 0.430 L (0.455 US qt, 0.378 Imp.qt)F60TR 0.430 L (0.455 US qt, 0.378 Imp.qt)F70A 0.670 L (0.708 US qt, 0.590 Imp.qt)T50TR 0.670 L (0.708 US qt, 0.590 Imp.qt)T60TR 0.670 L (0.708 US qt, 0.590 Imp.qt)

Tightening torque for engine:Spark plug:

F50TR 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)F60TR 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)F70A 17.0 Nm (1.73 kgf-m, 12.5 ft-lb)T50TR 18.0 Nm

6C1-9-19.book 15

Specifications and requirements

16

(1.84 kgf-m, 13.3 ft-lb)T60TR 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)

Propeller nut: F50TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)F60TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)F70A 34.0 Nm (3.47 kgf-m, 25.1 ft-lb)T50TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)T60TR 35.0 Nm (3.57 kgf-m, 25.8 ft-lb)

Engine oil drain bolt: F50TR 28.0 Nm (2.86 kgf-m, 20.7 ft-lb)F60TR 28.0 Nm (2.86 kgf-m, 20.7 ft-lb)F70A 27.0 Nm (2.75 kgf-m, 19.9 ft-lb)T50TR 28.0 Nm (2.86 kgf-m, 20.7 ft-lb)T60TR 28.0 Nm (2.86 kgf-m, 20.7 ft-lb)

Engine oil filter: 18.0 Nm (1.84 kgf-m, 13.3 ft-lb)

EMU33581

Remote control requirements

WARNINGEWM01580

If the engine starts in gear, the boat canmove suddenly and unexpectedly, pos-sibly causing a collision or throwingpassengers overboard.

If the engine ever starts in gear, thestart-in-gear protection device is notworking correctly and you should dis-continue using the outboard. Contactyour Yamaha dealer.

The remote control unit must be equipped

with a start-in-gear protection device(s). Thisdevice prevents the engine from starting un-less it is in neutral.EMU25694

Battery requirementsEMU25713

Specifications of BatteryUse a fully charged battery that meets thefollowing specifications. The engine cannotbe started if battery voltage is too low.

NOTICEECM01061

Do not use a battery that does not meetthe specified capacity. If a battery thatdoes not meet specifications is used, theelectric system could perform poorly orbe overloaded, causing electric systemdamage.

EMU36290

Mounting batteryMount the battery holder securely in a dry,well-ventilated, vibration-free location in theboat. WARNING! Do not put flammableitems, or loose heavy or metal objects inthe same compartment as the battery.Fire, explosion or sparks could result.[EWM01820] EMU36300

Multiple batteriesTo connect multiple batteries, such as formultiple engine configurations or for an ac-cessory battery, consult your Yamaha dealer

Minimum cold cranking amps (CCA/SAE):

380.0 AMinimum marine cranking amps (MCA/ABYC):

502.0 AMinimum reserve capacity (RC/SAE):

124 minutes

6C1-9-19.book 16

Specifications and requirements

17

about battery selection and correct wiring.EMU34194

Propeller selectionNext to selecting an outboard motor, select-ing the right propeller is one of the most im-portant purchasing decisions a boater canmake. The type, size, and design of your pro-peller have a direct impact on acceleration,top speed, fuel economy, and even enginelife. Yamaha designs and manufactures pro-pellers for every Yamaha outboard motorand every application.Your outboard motor came with a Yamahapropeller selected to perform well over arange of applications, but there may be useswhere a different propeller would be moreappropriate.Your Yamaha dealer can help you select theright propeller for your boating needs. Selecta propeller that will allow the engine to reachthe middle or upper half of the operatingrange at full throttle with the maximum boat-load. Generally, select a larger pitch propel-ler for a smaller operating load and a smallerpitch propeller for a heavier load. If you carryloads that vary widely, select the propellerthat lets the engine run in the proper rangefor your maximum load but remember thatyou may need to reduce your throttle settingto stay within the recommended enginespeed range when carrying lighter loads.To check the propeller, see page 85.

EMU25770

Start-in-gear protectionYamaha outboard motors or Yamaha-ap-proved remote control units are equippedwith start-in-gear protection device(s). Thisfeature permits the engine to be started onlywhen it is in neutral. Always select neutralbefore starting the engine.

1. Propeller diameter in inches2. Propeller pitch in inches3. Type of propeller (propeller mark)

1. Propeller diameter in inches2. Propeller pitch in inches3. Type of propeller (propeller mark)

ZMU04606

-x1 2 3

ZMU04605

-x1 2 3

6C1-9-19.book 17

Specifications and requirements

18

EMU31445

Engine oil requirements

If the recommended engine oil grades arenot available, select an alternative from thefollowing chart according to the average tem-peratures in your area.

EMU36360

Fuel requirementsEMU36781

GasolineUse a good quality gasoline that meets theminimum octane rating. If knocking or ping-ing occurs, use a different brand of gasolineor premium unleaded fuel. Yamaha re-comends that you use alcohol-free (see Gas-ohol) gasoline whenever possible.

NOTICEECM01981

Do not use leaded gasoline. Leadedgasoline can seriously damage the en-gine.

Avoid getting water and contaminantsin the fuel tank. Contaminated fuel cancause poor performance or enginedamage. Use only fresh gasoline thathas been stored in clean containers.

GasoholThere are two types of gasohol: gasohol con-taining ethanol (E10) and that containingmethanol. Ethanol can be used if the ethanolcontent does not exceed 10% and the fuelmeets the minimum octane ratings. E85 is afuel containing 85% ethanol and must not beused in your outboard motor. All ethanolblends containing more than 10% ethanolcan cause fuel system damage or cause en-gine starting and running problems. Yamahadoes not recommend gasohol containingmethanol because it can cause fuel systemdamage or engine performance problems.It is recommended that you install a water-separating marine fuel filter assembly (10 mi-

Recommended engine oil:YAMALUBE 4-M FC-W oil or 4-stroke motor oil with a combination of the fol-lowing SAE and API oil classifications

Engine oil type SAE:10W-30 or 10W-40

Engine oil grade API:SE, SF, SG, SH, SJ, SL

Total engine oil quantity (oil pan capaci-ty):

2.5 L (2.64 US qt, 2.20 Imp.qt)Replacement engine oil quantity (at peri-odic maintenance):

Without oil filter replacement: 1.9 L (2.01 US qt, 1.67 Imp.qt)

With oil filter replacement: 2.1 L (2.22 US qt, 1.85 Imp.qt)

Recommended gasoline:Regular unleaded gasoline with a min-imum Octane rating of 86 (Pump Oc-tane Number) = (R+M)/2

6C1-9-19.book 18

Specifications and requirements

19

cron minimum) between your boats fuel tankand outboard motor when using ethanol.Ethanol is known to allow moisture to be ab-sorbed into boat fuel tanks and systems.Moisture in the fuel can cause corrosion ofmetallic fuel system components, startingand running complaints and require addition-al fuel system maintenance.EMU27270

Ring Free Fuel AdditiveGasoline is a precise blend of many differentsubstances, each chosen to give certaincharacteristics. Gasoline blends have beenchanging in recent years in response to con-cerns about pollution and resulting emis-sions regulations. One of the most obviouschanges has been the elimination of leadfrom most fuels.As gasoline has changed, the amount of ad-ditives such as aromatics and oxygenateshas increased. These additives are impor-tant for the engines in passenger cars, butthey can have detrimental effects in marineengines, because of increased deposits inthe combustion chamber. When enough de-posits collect, piston rings begin sticking.Performance drops and engine wear in-creases dramatically.While many additives available may reducedeposits, Yamaha recommends the use ofRing Free Fuel Additive, available fromyour Yamaha dealer. Ring Free Fuel Addi-tive has repeatedly proven its ability to cleancombustion deposits from inside the engine,notably the critical piston-ring-land area, andfuel system components. Follow product la-beling for use instructions.EMU36330

Anti-fouling paintA clean hull improves boat performance. Theboat bottom should be kept as clean of ma-

rine growth as possible. If necessary, theboat bottom can be coated with an anti-foul-ing paint approved for your area to inhibitmarine growth.Do not use anti-fouling paint which includescopper or graphite. These paints can causemore rapid engine corrosion.

EMU36341

Motor disposal requirementsNever illegally discard (dump) the motor.Yamaha recommends consulting the dealerabout discarding the motor.EMU36352

Emergency equipmentKeep the following items onboard in casethere is trouble with the outboard motor. A tool kit with assorted screwdrivers, pli-

ers, wrenches (including metric sizes), andelectrical 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.EMU25221

Emission control informationEMU25230

North American modelsThis engine conforms to U.S. EnvironmentalProtection Agency (EPA) regulations for ma-

6C1-9-19.book 19

Specifications and requirements

20

rine SI engines. See the label affixed to yourengine for details.EMU31560

Approval label of emission control certif-icateThis label is attached to the bottom cowling.New Technology; (4-stroke) MFI

EMU25262

Manufactured date labelThis label is attached to the clamp bracket orthe swivel bracket.

EMU25273

Star labelsYour outboard motor is labeled with a Cali-fornia Air Resources Board (CARB) star la-bel. See below for a description of yourparticular label.

1. Approval label location

1

ZMU05797

ZMU06894

EMISSION CONTROL INFORMATION MFITHIS ENGINE CONFORMS TO CALIFORNIA AND U.S. EPA EXHAUSTREGULATIONS FOR SI MARINE ENGINES. REFER TO THE OWNER'SMANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.MEETS U.S. EPA EVAP STANDARDS USING CERTIFIED COMPONENTS.FAMILY:DISPLACEMENT: litersSPARK PLUG:FUEL: GASOLINE

FELs(HC+NOx / CO): / g/kW-hr MAX POWER: kWIDLE SPEED: rpm IN NETRALSPARK PLUG GAP (mm):VALVE LASH (mm) IN: EX:

YAMAHA MOTOR CO.,LTD.

1. Manufactured date label location

1. Star labels location

ZMU047011

ZMU05088

1

6C1-9-19.book 20

Specifications and requirements

21

EMU25280

One StarLow EmissionThe one-star label identifies engines thatmeet the Air Resources Boards 2001 ex-haust emission standards. Engines meetingthese standards have 75% lower emissionsthan conventional carbureted two-stroke en-gines. These engines are equivalent to theU.S. EPAs 2006 standards for marine en-gines.

EMU40340

Two StarsVery Low EmissionThe two-star label identifies engines thatmeet the Air Resources Boards PersonalWatercraft and Outboard marine engine2004 exhaust emission standards. Enginesmeeting these standards have 20% loweremissions than One Star-Low-Emission en-gines.

EMU40350

Three StarsUltra Low EmissionThe three-star label identifies engines that

meet the Air Resources Boards PersonalWatercraft and Outboard marine engine2008 exhaust emission standards or theSterndrive and Inboard marine engine 2003-2008 exhaust emission standards. Enginesmeeting these standards have 65% loweremissions than One Star-Low-Emission en-gines.

EMU33861

Four StarsSuper Ultra Low EmissionThe four-star label identifies engines thatmeet the Air Resources Boards Sterndriveand Inboard marine engine 2009 exhaustemission standards. Personal Watercraftand Outboard marine engines may alsocomply with these standards. Engines meet-ing these standards have 90% lower emis-sions than One Star-Low-Emission engines.

ZMU01702

ZMU01703

ZMU01704

ZMU05663

6C1-9-19.book 21

22

ComponentsEMU2579T

Components diagramTIP:* May not be exactly as shown; also may not be included as standard equipment on all mod-els (order from dealer).F50, F60, T50, T60

2

3

4TRIP TIME BATT

Km/hknotmph

kmmile

SPEED

YAMAHA

set mode

14

1

9

11

67

510

8

12 15

13

18

16 17

19 20

ZMU05090

1. Top cowling2. Water separator3. Cowling lock lever4. Drain screw5. Anode*6. Anti-cavitation plate7. Trim tab (anode)8. Propeller*9. Cooling water inlet10. Anode(s)11. Clamp bracket12. Tilt support lever13. Tiller handle*14. Flushing device15. Remote control box (side mount type)*

16. Digital tachometer*17. Digital speedometer*18. Tachometer*19. Trim meter*20. Fuel tank*

6C1-9-19.book 22

Components

23

F70A

1

3

2

4

10

9

5

67

8

10 TRIP TIME BATTKm/hknotmph

kmmile

SPEED

YAMAHA

set mode

13 14 15

16 17 18

12

11

ZMU07113

1. Top cowling2. Water separator3. Cowling lock lever4. Drain screw5. Anti-cavitation plate6. Trim tab (anode)7. Propeller*8. Cooling water inlet9. Anode(s)10. Tilt support lever11. Power trim and tilt switch12. Flushing device13. Remote control box (side mount type)*14. Digital tachometer*15. Digital speedometer*16. Tachometer*17. Trim meter*18. Fuel tank*

6C1-9-19.book 23

Components

24

F70HA

1

3

2

171819204

10

12

16

13

9

105

67

8

15

14

11

ZMU07120

21

1. Top cowling2. Water separator3. Cowling lock lever4. Drain screw5. Anti-cavitation plate6. Trim tab (anode)7. Propeller*8. Cooling water inlet9. Anode(s)10. Tilt support lever11. Power trim and tilt switch12. Gear shift lever13. Variable trolling RPM switch14. Power trim and tilt switch15. Throttle grip16. Engine stop button/Engine shut-off switch17. Clip18. Main switch19. Steering friction adjuster20. Flushing device

21. Fuel tank*

6C1-9-19.book 24

Components

25

EMU25802

Fuel tankIf your model was equipped with a portablefuel tank, its function is as follows.

WARNINGEWM00020

The fuel tank supplied with this engine isits dedicated fuel reservoir and must notbe used as a fuel storage container. Com-mercial users should conform to relevantlicensing or approval authority regula-tions.

EMU25830

Fuel jointThis joint is used to connect the fuel line.

1

4 6

32

5

ZMU05429

1. Tachometer unit (Square type)*2. Tachometer unit (Round type)*3. Speedometer unit (Square type)*4. Speed & fuel meter unit (Square type)*5. Speed & fuel meter unit (Round type)*6. Fuel management meter (Square type)*

1. Fuel joint2. Fuel gauge3. Fuel tank cap4. Air vent screw

ZMU022843

1

4

2

6C1-9-19.book 25

Components

26

EMU25841

Fuel gaugeThis gauge is located on either the fuel tankcap or on the fuel joint base. It shows the ap-proximate amount of fuel remaining in thetank.EMU25850

Fuel tank capThis cap seals the fuel tank. When removed,the tank can be filled with fuel. To remove thecap, turn it counterclockwise.EMU25860

Air vent screwThis screw is on the fuel tank cap. To loosenthe screw, turn it counterclockwise.EMU26181

Remote control boxThe remote control lever actuates both theshifter and the throttle. The electrical switch-es are mounted on the remote control box.

EMU26190

Remote control leverMoving 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.

EMU26201

Neutral interlock triggerTo shift out of neutral, first pull the neutral in-terlock trigger up.

EMU26212

Neutral throttle leverTo open the throttle without shifting into ei-ther forward or reverse, put the remote con-

1. Power trim and tilt switch2. Remote control lever3. Neutral interlock trigger4. Neutral throttle lever5. Main switch6. Engine shut-off switch7. Throttle friction adjuster

1. Neutral 2. Forward 3. Reverse 4. Shift5. Fully closed6. Throttle7. Fully open

1. Neutral interlock trigger

6C1-9-19.book 26

Components

27

trol lever in the neutral position and lift theneutral throttle lever.

TIP:The neutral throttle lever will operate onlywhen the remote control lever is in neutral.The remote control lever will operate onlywhen the neutral throttle lever is in the closedposition.EMU25912

Tiller handleTo change direction, move the tiller handle tothe left or right as necessary.

EMU25923

Gear shift leverMove the gear shift lever forward to engagethe forward gear or rearward to engage thereverse gear.

EMU25941

Throttle gripThe throttle grip is on the tiller handle. Turnthe grip counterclockwise to increase speedand clockwise to decrease speed.

EMU25961

Throttle indicatorThe fuel consumption curve on the throttleindicator shows the relative amount of fuelconsumed for each throttle position. Choosethe setting that offers the best performanceand fuel economy for the desired operation.

1. Fully open2. Fully closed

1. Forward 2. Neutral 3. Reverse

6C1-9-19.book 27

Components

28

EMU25976

Throttle friction adjusterA friction device provides adjustable resis-tance to movement of the throttle grip or theremote control lever, and can be set accord-ing to operator preference.To increase resistance, turn the adjusterclockwise. To decrease resistance, turn theadjuster counterclockwise. WARNING! Donot overtighten the friction adjuster. Ifthere is too much resistance, it could bedifficult to move the remote control leveror throttle grip, which could result in anaccident. [EWM00032]

When constant speed is desired, tighten theadjuster to maintain the desired throttle set-ting.EMU25994

Engine shut-off cord (lanyard) and clipThe clip must be attached to the engine shut-off switch for the engine to run. The cordshould be attached to a secure place on theoperators clothing, or arm or leg. Should theoperator fall overboard or leave the helm, thecord will pull out the clip, stopping ignition tothe engine. This will prevent the boat fromrunning away under power. WARNING! At-tach the engine shut-off cord to a secureplace on your clothing, or your arm or legwhile operating. Do not attach the cord toclothing that could tear loose. Do notroute the cord where it could become en-tangled, preventing it from functioning.Avoid accidentally pulling the cord dur-ing normal operation. Loss of enginepower means the loss of most steeringcontrol. Also, without engine power, theboat could slow rapidly. This could causepeople and objects in the boat to bethrown forward. [EWM00122]

1. Throttle indicator

6C1-9-19.book 28

Components

29

EMU26002

Engine stop buttonThe engine stop button stops the enginewhen the button is pushed.

EMU26091

Main switchThe main switch controls the ignition system;its operation is described below. (off)With the main switch in the (off) posi-tion, the electrical circuits are off, and the keycan be removed. (on)With the main switch in the (on) posi-tion, the electrical circuits are on, and the keycannot 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 returnsautomatically to the (on) position.

EMU31432

Steering friction adjusterA friction device provides adjustable resis-tance to the steering mechanism, and can be

1. Cord2. Clip3. Engine shut-off switch

1. Cord2. Clip3. Engine shut-off switch

6C1-9-19.book 29

Components

30

set according to operator preference. An ad-juster lever is located on the bottom of thetiller handle bracket.To increase resistance, turn the lever to theport side A.To decrease resistance, turn the lever to thestarboard side B.

WARNINGEWM00040

Do not overtighten the friction adjuster. Ifthere is too much resistance, it could bedifficult to steer, which could result in anaccident.

If the resistance does not increase evenwhen the lever is turned to the port side A,make sure that the nut is tightened to thespecified torque.

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 tothe friction areas of the steering friction ad-juster.

EMU26143

Power trim and tilt switch on remote control or tiller handleThe power trim and tilt system adjusts theoutboard motor angle in relation to the tran-som. Pressing the switch (up) trims theoutboard motor up, and then tilts it up. Press-ing the switch (down) tilts the outboardmotor down and trims it down. When theswitch is released, the outboard motor willstop in its current position.For instructions on using the power trim andtilt switch, see pages 64 and 66.

1. Nut

ZMU02810

B

A

Nut tightening torque:3.8 Nm (0.38 kgf-m, 2.8 ft-lb)

6C1-9-19.book 30

Components

31

EMU26154

Power trim and tilt switch on bottom cowlingThe power trim and tilt switch is located onthe side of the bottom cowling. Pushing theswitch (up) trims the outboard motor up,and then tilts it up. Pushing the switch (down) tilts the outboard motor down andtrims it down. When the switch is released,the outboard motor will stop in its current po-sition.For instructions on using the power trim andtilt switch, see page 66.

WARNINGEWM01031

Use the power trim and tilt switch locatedon the bottom cowling only when the boatis at a complete stop with the engine off.Attempting to use this switch while theboat is moving could increase the risk offalling overboard and could distract theoperator, increasing the risk of collisionwith another boat or an obstacle.

EMU30901

Variable trolling RPM switchesThe trolling speed can be adjusted when theoutboard motor is trolling. Press the switch to increase the trolling speed andpress the switch to decrease the trollingspeed.

TIP: The trolling speed changes approximately

50 r/min each time a switch is pressed. If the trolling speed has been adjusted, the

engine returns to the normal trolling speedwhen the engine is stopped and restartedor when the engine speed exceeds ap-proximately 3000 r/min.

For instructions on using the variable troll-ing RPM switches, see page 63.

1. Power trim and tilt switch

1. Variable trolling RPM switch

UP

DNZMU03634

1

6C1-9-19.book 31

Components

32

EMU26244

Trim tab with anode

WARNINGEWM00840

An improperly adjusted trim tab couldcause difficult steering. Always test runafter the trim tab has been installed or re-placed to be sure steering is correct. Besure you have tightened the bolt after ad-justing the trim tab.

The trim tab should be adjusted so that thesteering control can be turned to either theright or left by applying the same amount offorce.If the boat tends to veer to the left (port side),turn the trim tab rear end to the port side Ain the figure. If the boat tends to veer to theright (starboard side), turn the trim tab end tothe starboard side B in the figure.

NOTICEECM00840

The trim tab also serves as an anode toprotect the engine from electrochemicalcorrosion. Never paint the trim tab as itwill become ineffective as an anode.

EMU26341

Tilt support lever for power trim and tilt modelTo keep the outboard motor in the tilted upposition, lock the tilt support lever to theclamp bracket.

NOTICEECM00660

Do not use the tilt support lever or knobwhen trailering the boat. The outboardmotor could shake loose from the tilt sup-port and fall. If the motor cannot be trail-ered in the normal running position, use

1. Trim tab2. Bolt3. Cap

123

ZMU02525

A

B

1. Trim tab2. Bolt

Bolt tightening torque:F50, F60 18.0 Nm (1.8 kgf-m, 13 ft-lb)F70, T50, T60 36.0 Nm (3.6 kgf-m, 26 ft-lb)

A

BZMU03097

1

2

ZMU03595

6C1-9-19.book 32

Components

33

an additional support device to secure itin the tilt position.

EMU26373

Cowling lock lever(s) (turn type)To remove the engine top cowling, turn thecowling lock lever(s) and lift off the cowling.When installing the cowling, check to be sureit fits properly in the rubber seal. Then lockthe cowling again by returning the cowlinglock lever(s) to the lock position.

EMU26462

Flushing deviceThis device is used to clean the cooling wa-ter passages of the motor using a gardenhose and tap water.

TIP:For details on usage, see page 73.EMU33463

Fuel filter/Water separatorThis engine has a combination fuel filter/wa-ter separator and associated alert system. Ifwater separated from the fuel exceeds aspecific volume, the alert device of Com-mand Link Tachometer will activate.

1. Cowling lock lever(s)

1. Flushing device

1

ZMU05093

1

ZMU05095

1. Flushing device

1ZMU07078

ZMU05474

ZMU07079

6C1-9-19.book 33

Components

34

Activation of alert device The water separator-alert indicator of

Command Link Tachometer will blink. The buzzer will sound intermittently only

when the gear shift is in neutral. If the alert system has activated, stop the

engine and consult a Yamaha dealer im-mediately.

TIP:Adding an in-line 10-micron fuel filter hasbeen show to greatly reduce the chance offuel contamination problems. Consult yourdealer for information about Yamaha 10-mi-cron fuel filters if your boat does not haveone.

6C1-9-19.book 34

35

Instruments and indicatorsEMU26493

Digital tachometerThe tachometer shows the engine speedand has the following functions.All segments of the display will light momen-tarily after the main switch is turned on andwill return to normal thereafter.

TIP:The water separator and engine trouble-alertindicators only operate when the engine isequipped with the appropriate functions.EMU36050

TachometerThe tachometer displays engine speed inhundreds of revolutions per minute (r/min).For example, if the tachometer display reads22 then the engine speed is 2200 r/min.EMU26621

Trim meterThis meter shows the trim angle of your out-board motor. Memorize the trim angles that work best

for your boat under different conditions.Adjust the trim angle to the desired using

the power trim and tilt switch. If the trim angle of your motor exceeds the

trim operating range, the top segment onthe trim meter display will blink.

EMU26651

Hour meterThis meter shows the number of hours theengine has been run. It can be set to showthe total number of hours or the number ofhours for the current trip. The display canalso be turned on and off.

To change the display format, press the (mode) button. The display can showtotal hours or trip hours, or turn off.To reset the trip hours, simultaneously pressthe (set) and (mode) buttons formore than 1 second while the trip hours aredisplayed. This resets the trip counter to 0(zero).The total number of hours the engine hasbeen run cannot be reset.

1. Tachometer2. Trim meter3. Hour meter4. Low oil pressure-alert indicator5. Overheat-alert indicator6. Set button7. Mode button

1

5

2

4

3

6 7 ZMU03601

ZMU01740

ZMU01741

6C1-9-19.book 35

Instruments and indicators

36

EMU26524

Low oil pressure-alert indicatorIf oil pressure drops too low, the alert indica-tor will start to blink. For further information,see page 47.

NOTICEECM00022

Do not continue to run the engine if thelow oil pressure-alert indicator is onand the engine oil level is lower. Seri-ous engine damage will occur.

The low oil pressure-alert indicatordoes not indicate the engine oil level.Use the oil dipstick to check the re-maining oil quantity. For further infor-mation, see page 53.

EMU26583

Overheat-alert indicatorIf the engine temperature rises too high, thealert indicator will start to blink. For further in-formation on reading the indicator, see page47.

NOTICEECM00052

Do not continue to run the engine if theoverheat-alert indicator is on. Serious en-gine damage will occur.

EMU26602

Digital speedometerThis gauge shows the boat speed and otherinformation.

All segments of the display will light momen-tarily after the main switch is turned on andwill return to normal thereafter.EMU36061

SpeedometerThe speedometer displays km/h, mph, orknots, according to operator preference. Se-lect the desired units of measurement by set-ting the selector switch on the back of thegauge. See the illustration for settings.

1. Low oil pressure-alert indicator

ZMU017361

1. Overheat-alert indicator

1. Speedometer2. Fuel gauge3. Trip meter/clock/voltmeter4. Alert indicator(s)

ZMU01737

1

6C1-9-19.book 36

Instruments and indicators

37

EMU26713

Fuel gaugeEight segments indicate the fuel level. Whenall segments are showing, the fuel tank isfull.

The fuel level reading can be inaccurate dueto the position of the sensor in the fuel tankand the attitude of the boat in the water. Op-eration with bow-up trim or continuous turn-ing can give false readings.Do not adjust the selector switch for fuel sen-sor. Incorrectly setting the selector switch onthe gauge will give false readings. Consultyour Yamaha dealer on how to correctly setthe selector switch. NOTICE: Running outof fuel can damage the engine. [ECM01770]

EMU36071

Trip meter / Clock / VoltmeterThe display shows either the trip meter, theclock, or the voltmeter.To change the display, press the (mode) button repeatedly until the indicatoron the face of the gauge points to (tripmeter), (clock), or (voltmeter).EMU26691

Trip meterThis gauge displays the distance the boathas traveled since the gauge was last reset.The trip distance is shown in kilometers ormiles depending upon the unit of measure-ment selected for the speedometer.To reset the trip meter to zero, press the (set) and (mode) buttons at the sametime.The trip distance is kept in memory by bat-tery power. The stored data will be lost if thebattery is disconnected.

EMU26701

ClockTo set the clock:1. Be sure the gauge is in the (time)

mode.2. Press the (set) button; the hour dis-

play will begin blinking.3. Press the (mode) button until the

desired hour is displayed.4. Press the (set) button again, the

minute display will begin blinking.

1. Cap2. Selector switch (for speed unit)3. Selector switch (for fuel sensor)

ZMU01745

6C1-9-19.book 37

Instruments and indicators

38

5. Press the (mode) button until thedesired minute is displayed.

6. Press the (set) button again to startthe clock.

The clock operates on battery power. Dis-connecting the battery will stop the clock.Reset the clock after connecting the battery.EMU36080

VoltmeterThe voltmeter displays the charge of the bat-tery in volts(V).EMU26721

Fuel level-alert indicatorIf the fuel level decreases to one segment,the fuel level alert segment will blink.Do not continue to operate the engine withfull throttle if an alert device has activated.Get back to the port within trolling enginespeed. NOTICE: Running out of fuel candamage the engine. [ECM01770]

EMU26732

Low battery voltage-alert indicatorIf battery voltage drops, the display will auto-matically turn on and blink.Get back to the port soon if an alert devicehas activated. For charging the battery, con-sult your Yamaha dealer.

EMU26471

Analog tachometerThis gauge shows the engine speed and hasthe following functions.

EMU26506

Low oil pressure-alert indicatorIf oil pressure drops too low, this indicator willflash. For further information, see page 47.

1. Fuel level-alert segment

1. Low battery indicator

1. Tachometer2. Alert indicator(s)

ZMU04578

1

2

6C1-9-19.book 38

Instruments and indicators

39

NOTICEECM00022

Do not continue to run the engine if thelow oil pressure-alert indicator is onand the engine oil level is lower. Seri-ous engine damage will occur.

The low oil pressure-alert indicatordoes not indicate the engine oil level.Use the oil dipstick to check the re-maining oil quantity. For further infor-mation, see page 53.

EMU26574

Overheat-alert indicatorIf the engine temperature rises too high, thisindicator will flash. For further information onreading the indicator, see page 47.

NOTICEECM00052

Do not continue to run the engine if theoverheat-alert indicator is on. Serious en-gine damage will occur.

EMU26611

Analog trim meterThis gauge shows the trim angle of your out-board motor.

Memorize the trim angles that work best foryour boat under different conditions. Adjustthe trim angle to the desired setting with thepower trim and tilt switch.EMU31642

Command link multifunction meters

Command link multifunction meters have 6kinds of meter units; tachometer unit (squareor round types), speedometer unit (squaretype), speed & fuel meter unit (square orround types), and fuel management meter(square type). The indicator system is slight-ly different between the round and squaretypes. Check the model and type of your unit

1. Low oil pressure-alert indicator

ZMU06156

1

1. Overheat-alert indicator

ZMU06157

1

ZMU04581

6C1-9-19.book 39

Instruments and indicators

40

carefully. This manual describes mainly thealert indicators. For more details on settingmeters or changing indicator systems, seethe attached operation manual.EMU36103

Command link multifunction tachometers

The tachometer shows the engine revolu-tions per minute. It has functions of trimmeter, adjusting trolling speed, cooling wa-ter/engine temperature display, battery volt-age display, total hour/trip hour display, oilpressure display, water detection alert, en-gine trouble alert, and periodic maintenancenotification. If the cooling water pressuresensor is installed, the unit can also show thecooling water pressure display. However,even if the cooling water pressure sensor isnot installed, the cooling water pressure dis-play can be shown by connecting an optionalsensor to the unit. For the optional sensor,consult your Yamaha dealer. The tachome-ter unit is available in round or square types.Check your tachometer unit type.

1. Set button2. Mode button

21

ZMU05415

1. Tachometer2. Trim meter3. Multifunction display4. Cooling water pressure5. Cooling water/engine temperature6. Water detection-alert indicator7. Battery voltage8. Oil pressure (4-stroke models)

1. Set button2. Mode button

2

3

1

4

5

6

7

8 ZMU05416

21

ZMU05417

6C1-9-19.book 40

Instruments and indicators

41

EMU36190

Start-up checksPlace the remote control lever / gear shift le-ver in neutral and turn the main switch to (on). After all the displays come on andthe total hour display comes on, the gaugewill change to normal operation. If the buzzersounds and the water separator-alert indica-tor blinks, consult your Yamaha dealer im-mediately.

TIP:To stop the buzzer, press the (set) or (mode) button.EMU37690

Adjusting trolling speedYou can adjust the trolling speed randomlyby increasing or decreasing it approximately50 r/min. When in the trolling speed settingmode, the display switches to the normal dis-play when the engine speed is increased(within 3000 r/min) using the throttle. Whenthe throttle is closed, the display returns to

the trolling speed setting mode. For details,see the attached operation manual.

TIP: Trolling is affected by currents and other

operating conditions and may differ fromthe actual engine speed.

The default engine idle speed is reset au-tomatically when the display is switched tothe normal display. The default engine idlespeed is also reset automatically when theengine is turned off or when the enginespeed exceeds 3000 r/min.

When warming up a cold engine, the troll-ing speed cannot be decreased below thespecified engine idle speed.

EMU36130

Low oil pressure-alertIf the engine oil pressure drops too low, thelow oil pressure-alert indicator will start toblink, and the engine speed will automatical-ly decrease to about 2000 r/min.

1. Tachometer2. Trim meter3. Multifunction display4. Water detection-alert indicator5. Engine trouble alert/maintenance indicator6. Cooling water pressure7. Oil pressure (4-stroke models)8. Cooling water/engine temperature9. Battery voltage

1 4 5 2

3

6 87 9 ZMU05418

ZMU05931

ZMU06309

6C1-9-19.book 41

Instruments and indicators

42

Stop the engine immediately if the buzzersounds and the low oil pressure-alert indica-tor blinks. Check the engine oil quantity andreplenish oil if necessary. If the alert devicehas activated while the appropriate engineoil quantity is maintained, consult yourYamaha dealer.

NOTICEECM01601

Do not continue to run the engine if thelow oil pressure alert device has activat-ed. Serious engine damage will occur.

EMU36221

Overheat alertIf the engine temperature rises too high whilecruising, the overheat-alert indicator will startto blink. The engine speed will automaticallydecrease to about 2000 r/min.

Stop the engine immediately if the buzzersounds and the overheat alert device has ac-tivated. Check the cooling water inlet forclogging.

NOTICEECM01592

Do not continue to run the engine if theoverheat-alert indicator blinks. Seriousengine damage will occur.

Do not continue to operate the engine ifa alert device has activated. Consultyour Yamaha dealer if the problem can-not be located and corrected.

EMU36150

Water separator alertThis indicator will blink if water has accumu-lated in the water separator (fuel filter) whilecruising. In such an event, stop the engineimmediately and see page 95 of this manualto drain the water from the fuel filter. Getback to the port soon and consult a Yamaha

ZMU05430

ZMU05431

ZMU05421

ZMU05422

6C1-9-19.book 42

Instruments and indicators

43

dealer immediately.

NOTICEECM00910

Gasoline mixed with water could causedamage to the engine.

EMU36160

Engine trouble alertThis indicator will blink if the engine malfunc-tions while cruising. Get back to the portsoon and consult a Yamaha dealer immedi-ately.

NOTICEECM00920

In such an event, the engine will not oper-ate properly. Consult a Yamaha dealer im-mediately.

EMU36170

Low battery voltage-alertIf the battery voltage drops, the low batteryvoltage-alert indicator and the battery volt-age value will start to blink. Get back to theport soon if the low battery voltage-alert de-vice has activated. For charging the battery,consult your Yamaha dealer.

ZMU05423

ZMU05424

ZMU05425

ZMU05426

ZMU05427

6C1-9-19.book 43

Instruments and indicators

44

EMU31613

Command link multifunction speed & fuel meters

The speed & fuel meter unit shows the boatspeed and has the functions of fuel meter, to-tal fuel consumption display, fuel economydisplay, fuel flow display, and system voltagedisplay. The chosen display is selected byusing the (set) and (mode) but-tons as described in this section. If the speedsensor is installed, the unit can also show thetrip display. However, even if the speed sen-sor is not installed, the trip display can beshown by connecting an optional sensor tothe unit. In addition, if optional sensors areconnected to the unit, water surface temper-ature display, depth display, and clock willalso be available. For the optional sensors,consult your Yamaha dealer.The speed & fuel meter unit is available inround or square types. Check your speed &fuel meter unit type for operation information.After the main switch is first turned on, all thedisplays come on as a test. After a few sec-onds, the gauge will change to normal oper-ation.For more information, see the operationmanual originally supplied with the meter.

ZMU05428

1. Set button2. Mode button

1. Speedometer2. Fuel meter3. Multifunction display

1. Set button2. Mode button

21

ZMU05432

1

23

ZMU05433

21

ZMU05434

6C1-9-19.book 44

Instruments and indicators

45

EMU31622

Command link multifunction speedometers

The speedometer unit shows the boat speedand has functions of fuel meter and systemvoltage display. The chosen display is se-lected by using the (set) and (mode) buttons as described in this section.In addition, the speedometer can show thedesired unit of measurement such as km/h,mph, or knots. If the speed sensor is in-stalled, the unit can also show the trip dis-play. However, even if the speed sensor isnot installed, the trip display can be shownby connecting an optional sensor to the unit.In addition, if optional sensors are connectedto the unit, water surface temperature dis-play, depth display, and clock will also beavailable. For the optional sensors, consultyour Yamaha dealer.After the main switch is first turned on, all thedisplays come on as a test. After a few sec-onds, the gauge will change to normal oper-ation.For more information, see the operationmanual originally supplied with the meter.

EMU31632

Command link multifunction fuel management meters

The fuel management meter has the func-tions of fuel flow meter, total consumptiondisplay, fuel economy display, and remainingfuel display. The chosen display is selectedby using the (set) and (mode)buttons as described in this section. Formore information, see the operation manualoriginally supplied with the meter.After the main switch is first turned on, all thedisplays come on as a test. After a few sec-onds, the gauge will change to normal oper-

1. Speedometer2. Fuel meter3. Multifunction display

1 2

3 ZMU05435

1. Set button2. Mode button

1. Speedometer2. Fuel meter3. Multifunction display

21

ZMU05436

1

23

ZMU05437

6C1-9-19.book 45

Instruments and indicators

46

ation.For more information, see the operationmanual originally supplied with the meter.

1. Set button2. Mode button

1. Fuel flow meter2. Multifunction display

21

ZMU05438

1

2

ZMU05439

6C1-9-19.book 46

47

Engine control systemEMU26803

Alert system

NOTICEECM00091

Do not continue to operate the engine if aalert device has activated. Consult yourYamaha dealer if the problem cannot belocated and corrected.

EMU2681C

Overheat alertThis engine has an overheat-alert device. Ifthe engine temperature rises too high, thealert device will activate. The engine speed will automatically de-

crease to about 2000 r/min. The overheat-alert indicator will light or

blink.

The buzzer will sound (if equipped on thetiller handle, remote control box, or mainswitch 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.

EMU3016B

Low oil pressure alertIf the oil pressure drops too low, the alert de-vice will activate. The engine speed will automatically de-

crease to about 2000 r/min. If equipped

ZMU05028

ZMU07103

ZMU03604

6C1-9-19.book 47

Engine control system

48

with a low oil pressure-alert indicator, it willlight or blink.

The buzzer will sound (if equipped on thetiller handle, remote control box, or mainswitch panel).

If the alert system has activated, stop the en-gine as soon as it is safe to do so. Check theoil level and add oil as needed. If the oil levelis correct and the alert device does notswitch off, consult your Yamaha dealer.

ZMU04994

ZMU07104

6C1-9-19.book 48

49

InstallationEMU26902

InstallationThe information presented in this section isintended as reference only. It is not possibleto provide complete instructions for everypossible boat and motor combination. Propermounting depends in part on experience andthe specific boat and motor combination.

WARNINGEWM01590

Overpowering a boat could cause se-vere instability. Do not install an out-board motor with more horsepowerthan the maximum rating on the capac-ity plate of the boat. If the boat does nothave a capacity plate, consult the boatmanufacturer.

Improper mounting of the outboard mo-tor could result in hazardous condi-tions such as poor handling, loss ofcontrol, or fire hazards. For permanent-ly mounted models, your dealer or oth-er person experienced in proper riggingshould mount the motor.

EMU33470

Mounting the outboard motorThe outboard motor should be mounted sothat the boat is well balanced. Otherwise, theboat could be hard to steer. For single-en-gine boats, mount the outboard motor on thecenterline (keel line) of the boat.

EMU26933

Mounting height (boat bottom)The mounting height of your outboard motoraffects its efficiency and reliability. If it ismounted too high, propeller ventilation mayoccur, which will reduce propulsion due toexcessive propeller slip, and the water in-takes for the cooling system may not get ad-equate water supply, which can causeengine overheating. If the engine is mountedtoo low, water resistance (drag) will increase,thereby reducing engine efficiency and per-formance.Most commonly, outboard motor should bemounted so that the anti-cavitation plate is inalignment with the bottom of the boat. Theoptimum mounting height of the outboardmotor is affected by the boat/motor combina-tion and the desired use. Test runs at differ-ent heights can help determine the optimummounting height. Consult your Yamaha deal-er or boat manufacturer for further informa-tion on determining the proper mountingheight.

1. Center line (keel line)

ZMU017601

6C1-9-19.book 49

Installation

50

NOTICEECM01634

Make sure that the idle hole is highenough to prevent water from enteringthe engine even if the boat is stationarywith the maximum load.

Incorrect engine height or obstructionsto the smooth flow of water (such as thedesign or condition of the boat, or ac-cessories, such as transom ladders ordepth finder transducers) can createairborne water spray while the boat iscruising. If the outboard motor is oper-ated continuously in the presence ofairborne water spray, enough watercould enter the engine through the airintake opening in the top cowling tocause severe engine damage. Removethe cause of the airborne water spray.

ZMU01762

6C1-9-19.book 50

51

OperationEMU36381

First-time operationEMU36391

Fill engine oilThe engine is shipped from the factory with-out engine oil. If your dealer did not fill the oil,you must fill it before starting the engine.NOTICE: Check that the engine is filledwith oil before first-time operation toavoid severe engine damage. [ECM01781] The engine is shipped with the followingsticker, which should be removed after en-gine oil is filled for the first time. For more in-formation on checking the engine oil level,see page 53.

EMU30174

Breaking in engineYour new engine requires a period of break-in to allow mating surfaces of moving parts towear in evenly. Correct break-in will help en-sure proper performance and longer enginelife. NOTICE: Failure to follow the break-inprocedure could result in reduced enginelife or even severe engine damage. [ECM00801] EMU27085

Procedure for 4-stroke modelsYour new engine requires a period of 10hours break-in to allow mating surfaces ofmoving parts to wear in evenly.

TIP:Run the engine in the water, under load (ingear 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 to2000 r/min or approximately half throttle.

2. For the second hour of operation:Increase engine speed as much as nec-essary to put the boat on plane (butavoid full-throttle operation), then backoff on the throttle while keeping the boatat a planing speed.

3. Remaining 8 hours:Run the engine at any speed. However,avoid operating at full throttle for morethan 5 minutes at a time.

4. After the first 10 hours:Operate the engine normally.

EMU36400

Getting to know your boatDifferent boats handle differently. Operatecautiously while you learn how your boathandles under different conditions and withdifferent trim angles (see page 64).EMU36413

Checks before starting engine

WARNINGEWM01921

If any item in Checks before starting en-gine is not working properly, have it in-spected and repaired before operatingthe outboard motor. Otherwise, an acci-dent could occur.

NOTICEECM00120

Do not start the engine out of water. Over-heating and serious engine damage canoccur.

EMU36421

Fuel levelBe sure you have plenty of fuel for your trip.

ZMU01710

6C1-9-19.book 51

Operation

52

A good rule is to use 1/3 of your fuel to get tothe destination, 1/3 to return, and to keep 1/3as an emergency reserve. With the boat lev-el on a trailer or in the water, turn the key to (on) and check the fuel level. For fuelfilling instructions, see page 55.EMU36571

Remove the top cowlingFor the following checks, remove the topcowling from the bottom cowling. To removethe top cowling, release the cowling lock le-ver and lift off the top cowling.

EMU36442

Fuel system

WARNINGEWM00060

Gasoline and its vapors are highly flam-mable and explosive. Keep away fromsparks, cigarettes, flames, or other sourc-es of ignition.

WARNINGEWM00910

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 qualifiedmechanic. Improper repairs can makethe outboard unsafe to operate.

EMU36451

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 fuel tank and fuel lines for

cracks, swellings, or other damages.EMU36471

Check the fuel filterCheck that the fuel filter is clean and free ofwater. If enough water to raise the float ringis found in the fuel, or if a significant amountof debris is found, the fuel tank should bechecked and cleaned by a Yamaha dealer.

EMU36902

ControlsTiller handle models: Move the tiller handle fully to the left and

right to make sure operation is smooth. Turn the throttle grip from the fully closed

to the fully open position. Make sure that it

ZMU06085

ZMU05474

ZMU07079

6C1-9-19.book 52

Operation

53

turns smoothly and that it completely re-turns to the fully closed position.

Look for loose or damaged connections ofthe throttle and shift cables.

Remote control models: Turn the steering wheel full-right and full-

left. Make sure operation is smooth andunrestricted throughout the whole rangewith no binding or excessive free play.

Operate the throttle levers several times tomake sure there is no hesitation in theirtravel. Operation should be smooth overthe complete range of motion, and each le-ver should return completely to the idle po-sition.

Look for loose or damaged connections ofthe throttle and shift cables.

EMU36483

Engine shut-off cord (lanyard)Inspect the engine shut-off cord and clip fordamage, such as cuts, breaks, and wear.

EMU37052

Engine oil1. Put t