Yamaha 115D Owner's Manual

Printed in JapanApril 2004–0.2 × 1 !Printed on recycled paper115DOWNER’S MANUAL6N6-28199-1BU.S.A.EditionLIT-18626-05-896N6-9-1B Hyoshi 2/20/04 5:11 P

General information 5 Rules are followed: Meeting: (you are approaching another ves-sel head-on) Crossing: (you are traveling across the oth-er ves

General information 6 EMU25530 Other special situations There are three other rules you should beaware of when driving your boat around oth-er vessel

General information 7 EMU25540 Fueling instructionsWARNING EWM00010 GASOLINE AND ITS VAPORS ARE HIGH-LY FLAMMABLE AND EXPLOSIVE! ● Do not smoke when

General information 8 dry rags. ● Do not overfill the fuel tank. ● Tighten the filler cap securely after re-fueling. ● If you should swallow some gas

General information 9 EMU25711 Battery specifications EMU25741 Propeller selection The performance of your outboard motor willbe critically affected

10 Basic components EMU25795 Main componentsNOTE: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. 115D

Basic components 11 EMU26190 Remote control lever Moving the lever forward from the neutral po-sition engages forward gear. Pulling the le-ver back f

Basic components 12 EMU26221 Choke switch To activate the choke system, press in themain switch while the key is turned to the“” (on) or “” (start) p

Basic components 13 during normal operation. Loss of en-gine power means the loss of moststeering control. Also, without enginepower, the boat could

Basic components 14 EMU26151 Power trim and tilt switch on bottom engine cowling The power trim and tilt switch is located onthe side of the bottom e

EMU25060ZMU01690 Read this owner’s manual carefully before operating your outboard motor.6N6-9-1B Hyoshi 2/20/04 5:11 PM Page 2

Basic components 15 EMU26340 Tilt support lever for power trim and tilt or hydro tilt model To keep the outboard motor in the tilted upposition, lock

Basic components 16 cable is operating correctly before rein-stalling the top cowling. ● When the release lever is operated,both the front and rear c

Basic components 17 EMU26540 Oil level indicators (three indicators) The indicators on the gauge show the statusof the oil level. For details on how

Basic components 18NOTE: After the main switch is first turned on, allsegments of the display come on as a test.After a few seconds, the gauge will c

Basic components 19 EMU26650 Hour meter (digital type) This meter shows the number of hours theengine has been run. It can be set to showthe total nu

Basic components 20NOTE: The clock operates on battery power. Dis-connecting the battery will stop the clock. Reset the clock after connecting the ba

Basic components 21 vice has activated. For charging the bat- tery, consult your Yamaha dealer. EMU26801 Warning systemCAUTION: ECM00090 Do not cont

Basic components 22 EMU26843 Oil level warning and oil filter clogging warning Oil injection models This engine has an oil level warning system.If th

Basic components 231. Oil filter1ZMU01952

24 Operation EMU26901 InstallationCAUTION: ECM00110 Incorrect engine height or obstructionsto smooth water flow (such as the designor condition of t

Important manual information EMU25100 To the owner Thank you for choosing a Yamaha outboardmotor. This Owner’s Manual contains infor-mation needed fo

Operation 25 motor greatly affects the water resistance. Ifthe mounting height is too high, cavitationtends to occur, thus reducing the propulsion;an

Operation 26 throttle to 3000 r/min or less.3. Second hour:Accelerate at full throttle onto plane,then reduce engine speed to three-quar-ter throttle

Operation 27 3. Watch for oil flowing through the oil feedpipes. After any air in the oil lines hasbeen expelled, the oil injection systemshould supp

Operation 28 or explosion could result. To fill the engine oil tank, proceed as follows:1. Pour engine oil into the remote oil tank.2. Turn on the ma

Operation 29 EMU27321 Oil level indicator operation The various functions of the oil level system are as follows: EMU27381 Oil level indicator Electr

Operation 30 EMU27450 Operating engine EMU27480 Feeding fuelWARNING EWM00420 ● Before starting the engine, make surethat the boat is tightly moored

Operation 31 lanyard where it could become entan-gled, preventing it from functioning. ● Avoid accidentally pulling the lanyardduring normal operatio

Operation 32 7. Immediately after the engine starts, re-lease the main switch and allow it to re-turn to “” (on).CAUTION: ECM00191 ● Never turn the

Operation 33 EMU27763 Forward (tiller handle and remote control models) Tiller control models1. Place the throttle grip in the fully closedposition.2

Operation 34 engine stop switch, then turning the main switch to “” (off). EMU27861 Trimming outboard motor The trim angle of the outboard motor help

Table of contents General information ... 1 Identification numbers record... 1 Outboard motor serial number ...

Operation 35 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 36 Bow Down Too much trim-in causes the boat to “plow”through the water, decreasing fuel economyand making it hard to increase speed. Oper-

Operation 37 4. Push the tilt support knob into the clampbracket or pull the tilt support lever to-ward you to support the engine.WARNING EWM00260 A

Operation 38 EMU28060 Cruising in shallow water The outboard motor can be tilted up partiallyto allow operation in shallow water. EMU28090 Power trim

Operation 39 mal running position, press the powertrim / tilt switch and slowly tilt the out-board motor down. EMU28190 Cruising in other conditions

40 Maintenance EMU28215 Specifications Dimension: Overall length: 808 mm (31.8 in) Overall width: 582 mm (22.9 in) Overall height L: 1472 mm (58.0 in

Maintenance 41 Tightening torque for engine: Spark plug: 25.0 Nm (18.4 ft-lb) (2.55 kgf-m) Propeller nut: 55.0 Nm (40.6 ft-lb) (5.61 kgf-m) EMU28222

Maintenance 42 page 44.2. Fill the fuel tank with fresh fuel and addone ounce of “Yamaha Fuel Conditionerand Stabilizer” (Part No. LUB-FUELC-12-00) t

Maintenance 43NOTE: A flushing attachment is available from your Yamaha dealer. EMU28410 Lubrication (oil injection models) 1. Grease the spark plug

Maintenance 44 tilled water.3. Store the battery on a level surface in acool, dry, well-ventilated place out of di-rect sunlight.4. Once a month, che

Table of contents control models) ... 33Reverse (automatic reverse lock and power trim and tilt models)... 33 Stopping en

Maintenance 45NOTE: For cooling system flushing instructions, see page 41. EMU28460 Checking painted surface of motor Check the motor for scratches,

Maintenance 46 EMU28521 Maintenance chart Frequency of maintenance operations may be adjusted according to the operating condi-tions, but the followi

Maintenance 47NOTE: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. Spark plug(s)C

Maintenance 48 EMU28931 Greasing Yamaha marine grease (Water resistant grease) 115D EMU28951 Cleaning and adjusting spark plugWARNING EWM00560 When

Maintenance 49 ple, if the center electrode porcelain is verywhite, this could indicate an intake air leak orcarburetion problem in that cylinder. Do

Maintenance 50 Checkpoints ● Fuel system parts leakage ● Fuel line joint leakage ● Fuel line cracks or other damage ● Fuel connector leakage EMU28980

Maintenance 51 cup. Firmly screw the cup onto the filterhousing.5. Attach the filter assembly to the bracketso that the fuel hoses are attached to th

Maintenance 52 EMU29120 Exhaust leakage Start the engine and check that no exhaustleaks from the joints between the exhaustcover, cylinder head, and

Maintenance 53 7. Activate the trim-up switch until the tiltrod is fully extended. Unlock the tilt sup-port lever.8. Tilt the outboard motor down. Ch

Maintenance 54 ● Check the propeller shaft oil seal for dam-age.NOTE: If the shear pin equipped: it is designed tobreak if the propeller hits a hard

1 General information EMU25170 Identification numbers record EMU25182 Outboard motor serial number The outboard motor serial number isstamped on the

Maintenance 55 align it with the hole. EMU29280 Changing gear oilWARNING EWM00800 ● Be sure the outboard motor is securelyfastened to the transom or

Maintenance 56 external anodes periodically. Remove scalesfrom the surfaces of the anodes. Consult aYamaha dealer for replacement of externalanodes.C

Maintenance 57 ommended level when necessary. Topup only with distilled water (or pure de-ionized water suitable to use in batter-ies).2. Always keep

Maintenance 58 EMU29400 Coating the boat bottom A clean hull improves boat performance. Theboat bottom should be kept as clean of ma-rine growth as p

59 Trouble Recovery EMU29422 Troubleshooting A problem in the fuel, compression, or igni-tion systems can cause poor starting, loss ofpower, or other

Trouble Recovery 60 Q. Is fuel system obstructed?A. Check for pinched or kinked fuel line orother obstructions in fuel system.Q. Is fuel contaminated

Trouble Recovery 61 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 62 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 63NOTE: Consult your Yamaha dealer if the new fuse immediately blows again. EMU29520 Power trim and tilt will not operate If the eng

Trouble Recovery 64 starter mechanism or top cowling afterthe engine is running. ● Do not touch the ignition coil, sparkplug wire, spark plug cap, or

General information 2 EMU25261 Manufactured date label This label is attached to the clamp bracket orthe swivel bracket. EMU25360 Safety information

Trouble Recovery 65 EMU29670 Engine fails to operate EMU29740 Low oil level warning activates If the oil level is allowed to drop too low, thered seg

Trouble Recovery 66 mal operation. The yellow segment willcontinue to be displayed on the oil levelindicator.5. Start the engine and return to the ne

Trouble Recovery 67 3. Drain the fuel from the carburetor, fuelfilter, and fuel line.4. Feed fogging oil or engine oil throughthe carburetor(s) and s

68 Consumer information EMU29811 Important warranty information for U.S.A. and Canada

Consumer information 69

Consumer information 70 EMU29820 YAMAHA MOTOR CORPORATION, U.S.A. OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY

Consumer information 71

Consumer information 72

Consumer information 73 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADA

Printed in JapanApril 2004–0.2 × 1 !Printed on recycled paper115DOWNER’S MANUAL6N6-28199-1BU.S.A.EditionLIT-18626-05-896N6-9-1B Hyoshi 2/20/04 5:11 P

General information 3 er operation before starting the engine. ● Attach the engine stop switch lanyard cordto a secure place on your clothing, or you

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 while engine is running. EMU25451 Label ENGINE OIL ONLY ● Pour the engine oil into this oil tank, notgasoline.RECOMMENDED OIL:Y