
Printed in JapanApril 2004–0.1 × 1 !Printed on recycled paperF30DF40DOWNER’S MANUAL67C-28199-15U.S.A.EditionLIT-18626-06-0267C-9-15 Hyoushi 3/31/04 9
General information 5 control is in neutral position. EMU25464 Caution labels EMU25472 LabelCAUTION: ECM01190 Transport and store the engine only as
General information 6 “The general prudential rule” This rule is called Rule 2 in the InternationalRules and says,“In obeying and construing these ru
General information 7 Overtaking If you are passing another vessel, you arethe “Give-Way” vessel. This means that theother vessel is expected to main
General information 8 This system uses buoys and signs with dis-tinctive shapes and colors to show regulato-ry or advisory information. These markers
General information 9 EMU25540 Fueling instructionsWARNING EWM00010 GASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE! ● Do not smoke when
General information 10 dry rags. ● Do not overfill the fuel tank. ● Tighten the filler cap securely after re-fueling. ● If you should swallow some ga
General information 11 electric system could perform poorly orbe overloaded, causing electric system damage. For electric start models, choose a batt
General information 12 to reach the middle or upper half of the oper-ating range at full throttle with the maximumboat load. If operating conditions
13 Basic components EMU25795 Main componentsNOTE: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. F30T
Basic components 14 licensing or approval authority regula- tions. EMU25830 Fuel joint This joint is used to connect the fuel line. EMU25841 Fuel gau
EMU25060ZMU01690 Read this owner’s manual carefully before operating your outboard motor.67C-9-15 Hyoushi 3/31/04 9:06 PM Page 2
Basic components 15 EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in-terlock trigger up. EMU26211 Neutral thrott
Basic components 16 EMU25941 Throttle grip The throttle grip is on the tiller handle. Turnthe grip counterclockwise to increase speedand clockwise to
Basic components 17 When constant speed is desired, tighten theadjuster to maintain the desired throttle set-ting. EMU25990 Engine stop lanyard switc
Basic components 18 EMU26070 Manual starter handle To start the engine, first gently pull the han-dle out until resistance is felt. From that posi-ti
Basic components 19 EMU26141 Power trim and tilt switch on remote control or tiller handle The power trim and tilt system adjusts theoutboard motor a
Basic components 20 protect the engine from electrochemicalcorrosion. Never paint the trim tab as it will become ineffective as an anode. EMU26312 Ti
Basic components 21 EMU26300 Warning indicator If the engine develops a condition which iscause for warning, the indicator lights up. Fordetails on h
Basic components 22 indicator will flash. For further information onreading the indicator, see page 22.CAUTION: ECM00050 Do not continue to run the
Basic components 23 switch panel).If the warning system has activated, stop theengine and check the cooling water inlet forclogging. EMU30164 Low oil
Basic components 24 low oil pressure warning indicator is on. Serious engine damage could occur.✩✪✰✬✤ ✥✧
Important manual information EMU25100 To the owner Thank you for choosing a Yamaha outboardmotor. This Owner’s Manual contains infor-mation needed fo
25 Operation EMU26901 InstallationCAUTION: ECM00110 Incorrect engine height or obstructionsto smooth water flow (such as the designor condition of t
Operation 26 motor greatly affects the water resistance. Ifthe mounting height is too high, cavitationtends to occur, thus reducing the propulsion;an
Operation 27 ● Check fuel line connections to be sure theyare tight (if equipped Yamaha fuel tank orboat tank). ● Be sure the fuel tank is positioned
Operation 28 tank. Wipe up any spilled fuel. EMU27270 Ring Free Fuel Additive Gasoline is a precise blend of many differentsubstances, each chosen to
Operation 29 connect the fuel line to the joint. Thenfirmly connect the other end of the fuelline to the joint on the fuel tank.3. If a steering fric
Operation 30 lanyard where it could become entan-gled, preventing it from functioning. ● Avoid accidentally pulling the lanyardduring normal operatio
Operation 31 arm or leg. Then install the lock plate onthe other end of the lanyard into the en-gine stop switch.WARNING EWM00120 ● Attach the engin
Operation 32 EMU27670 Warming up engine EMU27710 Manual start and electric start models 1. After starting the engine, allow it to idlefor 3 minutes t
Operation 33 firmly from neutral to forward.Remote control models1. Pull up the neutral interlock trigger (ifequipped) and move the remote controllev
Operation 34 EMU27795 Reverse (manual tilt and hydro tilt models)WARNING EWM00190 When operating in reverse, go slowly. Donot open the throttle more
Table of contents General information ... 1 Identification numbers record... 1 Outboard motor serial number ...
Operation 35 2. Pull up the neutral interlock trigger (ifequipped) and move the remote controllever quickly and firmly from neutral toreverse. EMU278
Operation 36 4. Remove the key if the boat will be leftunattended.NOTE: The engine can also be stopped by pullingthe lanyard and removing the lock pl
Operation 37 Adjust the outboard motor trim angle usingthe power trim and tilt switch.To raise the bow (trim-out), press the switch“” (up).To lower t
Operation 38 your boat and operating conditions. EMU27911 Adjusting boat trim When the boat is on plane, a bow-up attituderesults in less drag, great
Operation 39 salt corrosion.WARNING EWM00220 Be sure all people are clear of the out-board motor when tilting up and down,also be careful not to pin
Operation 40 EMU28005 Procedure for tilting up Power trim and tilt models / power tilt models1. Place the remote control lever / the gearshift lever
Operation 41 sure. 5. Models equipped with trim rods: Oncethe outboard motor is supported with thetilt support lever, press the power trimand tilt sw
Operation 42 3. Push the power tilt / power trim and tiltswitch “” (down) to lower the outboardmotor to the desired position. EMU28060 Cruising in sh
Operation 43 2. Pull the tilt lock lever up to the releaseposition.3. Slightly tilt the outboard motor up to thedesired position and push the tilt lo
Operation 44 2. Slightly tilt the outboard motor up to thedesired position using the power trim / tiltswitch.3. To return the outboard motor to the n
Table of contents tilt models) ... 34 Stopping engine ... 35 Procedure ...
45 Maintenance EMU28216 Specifications Dimension: Overall length: F30TR 700 mm (27.6 in)F40MH 1332 mm (52.4 in)F40TR 700 mm (27.6 in) Overall width:
Maintenance 46 F40TR Power trim and tilt Propeller mark: G Fuel and oil: Recommended fuel: Regular unleaded gasoline Min. pump octane: 86 Recommende
Maintenance 47 with a minimum of tools, can perform the fol-lowing procedures.CAUTION: ECM01080 ● To prevent problems which can becaused by oil ente
Maintenance 48 gine will be damaged from overheating.Before starting the engine, be sure tosupply water to the cooling water passag- es.CAUTION: ECM0
Maintenance 49 dling or working near batteries.Antidote (EXTERNAL): ● SKIN - Flush with water. ● EYES - Flush with water for 15 minutesand get immedi
Maintenance 50 tor securely.CAUTION: ECM00540 Do not leave the garden hose connectorloose on the bottom cowling fitting or letthe hose hang free dur
Maintenance 51 EMU28521 Maintenance chart Frequency of maintenance operations may be adjusted according to the operating condi-tions, but the followi
Maintenance 52NOTE: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. EMU28871 Maint
Maintenance 53 EMU28931 Greasing Yamaha marine grease (Water resistant grease) F30TR, F40MH, F40TR EMU28951 Cleaning and adjusting spark plugWARNING
Maintenance 54 ple, if the center electrode porcelain is verywhite, this could indicate an intake air leak orcarburetion problem in that cylinder. Do
1 General information EMU25170 Identification numbers record EMU25182 Outboard motor serial number The outboard motor serial number isstamped on the
Maintenance 55 Checkpoints ● Fuel system parts leakage ● Fuel line joint leakage ● Fuel line cracks or other damage ● Fuel connector leakage EMU28990
Maintenance 56 or other qualified mechanic.2. Verify whether the idle speed is set tospecification. For idle speed specifica-tions, see page 45. EMU2
Maintenance 57 Then tighten 1/4 to 1/2 turn more. Tightenthe drain screw to the correct torque with a torque wrench as soon as possible.4. Add the co
Maintenance 58 cover, cylinder head, and body cylinder. EMU29130 Water leakage Start the engine and check that no waterleaks from the joints between
Maintenance 59 Checkpoints ● Check each of the propeller blades forwear, erosion from cavitation or ventila-tion, or other damage. ● Check the propel
Maintenance 60 could be damaged. ● Be sure to use a new cotter pin andbend the ends over securely. Otherwisethe propeller could come off during op- e
Maintenance 61 dealer.5. With the outboard motor in a vertical po-sition, and using a flexible or pressur-ized filling device, inject the gear oil in
Maintenance 62 anodes.CAUTION: ECM00720 Do not paint anodes, as this would render them ineffective.NOTE: Inspect ground leads attached to externalan
Maintenance 63 ies).2. Always keep the battery in a good stateof charge. Installing a voltmeter will helpyou monitor your battery. If you will notuse
Maintenance 64 EMU29400 Coating the boat bottom A clean hull improves boat performance. Theboat bottom should be kept as clean of ma-rine growth as p
General information 2 EMU25261 Manufactured date label This label is attached to the clamp bracket orthe swivel bracket. EMU25272 Star labels Your ou
65 Trouble Recovery EMU29422 Troubleshooting A problem in the fuel, compression, or igni-tion systems can cause poor starting, loss ofpower, or other
Trouble Recovery 66 Q. Is fuel system obstructed?A. Check for pinched or kinked fuel line orother obstructions in fuel system.Q. Is fuel contaminated
Trouble Recovery 67 A. Have serviced by a Yamaha dealer.Q. Is load on boat improperly distributed?A. Distribute load to place boat on an evenplane.Q.
Trouble Recovery 68 Q. Is heat range of spark plug incorrect?A. Inspect spark plug and replace it with rec-ommended type.Q. Is high pressure fuel pum
Trouble Recovery 69 EMU29510 Power trim and tilt will not operate If the engine cannot be tilted up or down withthe power trim and tilt/ the power ti
Trouble Recovery 70 gine power means the loss of moststeering control. Also, without enginepower, the boat could slow rapidly. Thiscould cause people
Trouble Recovery 71 5. Insert the knotted end of the emergencystarter rope into the notch in the flywheelrotor and wind the rope several turnsaround
72 Consumer information EMU29811 Important warranty information for U.S.A. and Canada✩✪✰✬✤ ✪✥
Consumer information 73✩✪✰✬✤ ✪✦
Consumer information 74 EMU29830 YAMAHA MOTOR CORPORATION, U.S.A. FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY✩✪✰✬✤ ✪✧
General information 3 EMU25300 Three Stars—Ultra Low Emission The three-star label identifies engines thatmeet the Air Resources Board’s 2008 ex-haus
Consumer information 75✩✪✰✬✤ ✪
Consumer information 76 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADA✩✪✰✬✤ ✪✩
Printed in JapanApril 2004–0.1 × 1 !Printed on recycled paperF30DF40DOWNER’S MANUAL67C-28199-15U.S.A.EditionLIT-18626-06-0267C-9-15 Hyoushi 3/31/04 9
YAMAHA MOTOR CO., LTD.MADE IN JAPANPAYS D'ORIGINE JAPONOUTBOARD MOTOR WARRANTY REGISTRATIONENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORDPleas
PLACEPOSTAGEHEREATTN: WARRANTY DEPARTMENTWarranty card 2/27/02 11:47 AM Page 2
General information 4 of the road” on page 5. ● Stay informed about the weather. Checkweather forecasts before boating. Avoidboating in hazardous wea
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