- DL manuals
- Yamaha
- Outboard Motor
- 90D
- Owner's Manual
Yamaha 90D Owner's Manual
Summary of 90D
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Printed in japan march 2004–0.9 × 1 ! Printed on recycled paper 90d owner’s manual 6h1-28199-14 u.S.A.Edition lit-18626-05-86 6h1-28199-14_hyoshi 3/10/04 10:40 am page 1.
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Emu25060 zmu01690 read this owner’s manual carefully before operating your outboard motor. 6h1-28199-14_hyoshi 3/10/04 10:40 am page 2.
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Important manual information emu25100 to the owner thank you for choosing a yamaha outboard motor. This owner’s manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you ob- tain maximum enjoyment from your ...
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Table of contents general information .......................... 1 identification numbers record .......... 1 outboard motor serial number .......... 1 key number....................................... 1 emission control information ........... 1 north american models..................... 1 safety i...
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Table of contents reverse (automatic reverse lock and power trim and tilt models)..... 29 stopping engine ............................ 30 procedure ....................................... 30 trimming outboard motor .............. 30 adjusting trim angle ........................ 31 adjusting boat tri...
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1 general information emu25170 identification numbers record emu25182 outboard motor serial number the outboard motor serial number is stamped on the label attached to the port side of the clamp bracket or the upper part of the swivel bracket. Record your outboard motor serial number in the spaces p...
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General information 2 emu25261 manufactured date label this label is attached to the clamp bracket or the swivel bracket. Emu25361 safety information ● before mounting or operating the outboard motor, read this entire manual. Reading it should give you an understanding of the motor and its operation...
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General information 3 to a secure place on your clothing, or your arm or leg while operating. If you acciden- tally leave the helm, the cord will pull from the switch, stopping the engine. ● know the marine laws and regulations where you will be boating—and obey them. For basic boating rules, see “r...
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General information 4 another vessel on the water. Several sets of rules prevail according to geographic location, but are all basically the same as the international rules of the road. The rules presented here in your owner’s manual are condensed, and have been pro- vided for your convenience only....
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General information 5 meeting if you are meeting another power vessel head on, and are close enough to run the risk of collision, neither of you has the right-of- way! Both of you should alter course to avoid an accident. You should keep the other ves- sel on your port (left) side. This rule doesn’t...
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General information 6 the power-driven vessel, the power-driv- en vessel has the right-of-way. 2. Sailing vessels should keep clear of any fishing vessel. 3. In a narrow channel, a sailing vessel should not hamper the safe passage of a power-driven vessel which can navi- gate only in such a channel....
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General information 7 emu25540 fueling instructions warning ewm00010 gasoline and its vapors are high- ly flammable and explosive! ● do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. ● stop engine before refueling. ● refuel in a well-ventilated area. Refue...
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General information 8 dry rags. ● do not overfill the fuel tank. ● tighten the filler cap securely after re- fueling. ● if you should swallow some gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention. ● if any gasoline spills onto your skin, im- med...
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General information 9 speed is too high or too low for good engine performance, this will have an adverse effect on the engine. Yamaha outboard motors are fitted with pro- pellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch woul...
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10 basic components emu25795 main components note: * may not be exactly as shown; also may not be included as standard equipment on all mod- els. 90d emu25802 fuel tank if your model was equipped with a portable fuel tank, its function is as follows. Warning ewm00020 the fuel tank supplied with this...
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Basic components 11 licensing or approval authority regula- tions. Emu25830 fuel joint this joint is used to connect the fuel line. Emu25841 fuel gauge this gauge is located on either the fuel tank cap or on the fuel joint base. It shows the ap- proximate amount of fuel remaining in the tank. Emu258...
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Basic components 12 emu26201 neutral interlock trigger to shift out of neutral, first pull the neutral in- terlock trigger up. Emu26211 neutral throttle lever to open the throttle without shifting into ei- ther forward or reverse, put the remote con- trol lever in the neutral position and lift the n...
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Basic components 13 emu25990 engine stop lanyard switch the lock plate must be attached to the en- gine stop switch for the engine to run. The lanyard should be attached to a secure place on the operator’s clothing, or arm or leg. Should the operator fall overboard or leave the helm, the lanyard wil...
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Basic components 14 emu26141 power trim and tilt switch on remote control or tiller handle the power trim and tilt system adjusts the outboard motor angle in relation to the tran- som. Pressing the switch “ ” (up) trims the outboard motor up, then tilts it up. Pressing the switch “ ” (down) tilts th...
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Basic components 15 protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode. Emu26261 trim rod (tilt pin) the position of the trim rod determines the minimum trim angle of the outboard motor in relation to the transom. Emu26340 tilt suppo...
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Basic components 16 emu26460 flushing device this device is used to clean the cooling wa- ter passages of the motor using a garden hose and tap water. Note: for details on usage, see page 39. Emu26470 tachometer this gauge shows the engine speed and has the following functions. Emu26490 digital tach...
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Basic components 17 emu26550 oil level indicator (digital type) this indicator shows the engine oil level. If the oil level falls below the lower limit, the warning indicator will start to blink. For fur- ther information, see page 19. Caution: ecm00030 do not operate the engine without oil. Se- rio...
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Basic components 18 board motor. Note: ● memorize the trim angles that work best for your boat under different conditions. Adjust the trim angle to the desired using the power trim and tilt switch. ● if the trim angle of your motor exceeds the trim operating range, the top segment on the trim meter ...
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Basic components 19 ● the buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel). If the warning system has activated, stop the engine and check the cooling water inlet for clogging. Emu26843 oil level warning and oil filter clogging warning oil injection mode...
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Basic components 20 note: the warning for oil filter clogging is similar to the warnings for low oil level and overheat- ing. To make troubleshooting easier, check for engine overheating first, then oil level, and finally oil filter clogging. 1. Oil filter zmu03828 1.
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21 operation emu26901 installation caution: ecm00110 incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder transducers) can create airborne water spray while the boat is cruising. Severe engin...
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Operation 22 motor greatly affects the water resistance. If the mounting height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the en- gine to overheat. If the mounting height is too low, th...
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Operation 23 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 (approximately 4000 r/min). Vary engine speed occasionally. Run at full throttle for one minute, then allow about 10 minutes of operation at three...
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Operation 24 3. Watch for oil flowing through the oil feed pipes. After any air in the oil lines has been expelled, the oil injection system should supply oil normally. If no oil is flowing after 10 minutes of idling, consult your yamaha dealer. Caution: ecm00130 be sure to take the above steps when...
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Operation 25 3. Slowly pour the engine oil into the en- gine oil tank. 4. After filling, replace the all caps secure- ly. 1. Oil filler access cap 2. Oil tank filler cap zmu03370 zmu03371 2 1.
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Operation 26 emu27321 oil level indicator operation the various functions of the oil level system are as follows: emu27370 electric start models emu27450 operating engine emu27461 feeding fuel (portable tank) warning ewm00420 ● before starting the engine, make sure that the boat is tightly moored an...
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Operation 27 2. If there is a fuel joint on the motor, firmly connect the fuel line to the joint. Then firmly connect the other end of the fuel line to the joint on the fuel tank. 3. If a steering friction adjuster is provided on your outboard motor, securely attach the fuel line to the fuel line cl...
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Operation 28 to a secure place on your clothing, or your arm or leg while operating. ● do not attach the lanyard to clothing that could tear loose. Do not route the lanyard where it could become entan- gled, preventing it from functioning. ● avoid accidentally pulling the lanyard during normal opera...
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Operation 29 ning, overheating and serious damage could occur. Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. Consult your yamaha dealer if the problem cannot be located and cor- rected. Emu27740 shifting warning ewm00180 befor...
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Operation 30 emu27820 stopping engine before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop- ping the engine immediately after operating at high speed is not recommended. Emu27844 procedure 1. Push and hold the engine stop button or turn the main switch to “ ...
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Operation 31 emu27881 adjusting trim angle power trim and tilt models warning ewm00750 ● be sure all people are clear of the out- board motor when adjusting the tilt an- gle, also be careful not to pinch any body parts between the drive unit and clamp bracket. ● use caution when trying a trim positi...
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Operation 32 ciency. This is generally when the keel line of the boat is up about 3 to 5 degrees. With the bow up, the boat may have a greater tenden- cy to steer to one side or the other. Compen- sate for this as you steer. The trim tab can also be adjusted to help offset this effect. When the bow ...
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Operation 33 nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes. Otherwise fuel may leak. Caution: ecm00241 ● before tilting the outboard motor, stop the engine by following the procedure on page 30. Never tilt the outboard mo- tor while the engine is ...
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Operation 34 motor could fall back down suddenly if oil in the power trim and tilt unit loses pres- sure. 5. Models equipped with trim rods: once the outboard motor is supported with the tilt support lever, press the power trim and tilt switch “ ” (down) to retract the trim rods. Caution: ecm00250 b...
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Operation 35 to allow operation in shallow water. Warning ewm00660 ● place the gear shift in neutral before setting up for shallow water cruising. ● return the outboard motor to its normal position as soon as the boat is back in deeper water. Caution: ecm00260 do not tilt the outboard motor up so th...
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36 maintenance emu28215 specifications dimension: overall length: 726 mm (28.6 in) overall width: 374 mm (14.7 in) overall height l: 1413 mm (55.6 in) overall height x: 1540 mm (60.6 in) transom height l: 520 mm (20.5 in) transom height x: 647 mm (25.5 in) weight (without propeller) l: 119.0 kg (262...
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Maintenance 37 25.0 nm (18.4 ft-lb) (2.55 kgf-m) propeller nut: 35.0 nm (25.8 ft-lb) (3.57 kgf-m) emu28222 transporting and storing outboard motor warning ewm00690 ● leaking fuel is a fire hazard. When transporting and storing the outboard motor, close the air vent screw and fuel cock to prevent fue...
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Maintenance 38 cover/cap. Remove the propeller. 4. Install the flushing attachment over the cooling water inlet. Caution: ecm00300 do not run the engine without supplying it with cooling water. Either the engine water pump will be damaged or the en- gine will be damaged from overheating. Before star...
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Maintenance 39 emu28421 cleaning and anticorrosion measures 1. Wash down the exterior of the outboard motor with fresh water and dry off com- pletely. 2. Spray the outboard motor exterior with “yamaha silicone protectant” (part no. Lub-silcne-13-00). 3. Wax the cowling with a non-abrasive wax such a...
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Maintenance 40 2. Screw the garden hose connector onto a garden hose which is connected to a fresh water supply. 3. With the engine off, turn on the water tap and let the water flush through the cool- ing passages for about 15 minutes. Turn off the water and disconnect the garden hose. 4. When flush...
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Maintenance 41 emu28483 periodic maintenance warning ewm01070 be sure to turn off the engine when you perform maintenance unless otherwise specified. If you or the owner is not famil- iar with machine servicing, this work should be done by your yamaha dealer or other qualified mechanic. Maintenance,...
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Maintenance 42 emu28521 maintenance chart frequency of maintenance operations may be adjusted according to the operating condi- tions, but the following table gives general guidelines. Refer to the sections in this chapter for explanations of each owner-specific action. The “ ” symbol indicates the ...
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Maintenance 43 note: when operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. Emu28931 greasing yamaha marine grease (water resistant grease) 90d oil tank water drain inspection / cleaning spark plug(s) cleaning / adjustment / replacement ite...
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Maintenance 44 emu28951 cleaning and adjusting spark plug warning ewm00560 when removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion or fire. The spark plug is an important engine com- ponent and i...
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Maintenance 45 sources of ignition. Warning ewm00910 leaking fuel can result in fire or explo- sion. ● check for fuel leakage regularly. ● if any fuel leakage is found, the fuel system must be repaired by a qualified mechanic. Improper repairs can make the outboard unsafe to operate. Check the fuel ...
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Maintenance 46 spilled fuel in a rag. 3. Remove the filter element, and wash it in solvent. Allow it to dry. Inspect the filter element and o-ring to make sure they are in good condition. Replace them if necessary. If any water is found in the fuel, the yamaha portable fuel tank or other fuel tanks ...
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Maintenance 47 neck. If water or foreign matter collects in this hose, consult a yamaha dealer. Emu29111 checking wiring and connectors ● check that each grounding wire is properly secured. ● check that each connector is engaged se- curely. Emu29120 exhaust leakage start the engine and check that no...
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Maintenance 48 8. Tilt the outboard motor down. Check that the tilt rod and trim rods operate smoothly. Note: consult your yamaha dealer if any operation is abnormal. Emu29171 checking propeller warning ewm00321 you could be seriously injured if the en- gine accidentally starts when you are near the...
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Maintenance 49 emu29193 removing the propeller 1. Straighten the cotter pin and pull it out using a pair of pliers. 2. Remove the propeller nut, washer, and spacer (if equipped). 3. Remove the propeller and thrust wash- er. Emu29230 installing the propeller caution: ecm00340 ● be sure to install the...
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Maintenance 50 3. Remove the gear oil drain screw. Note: if the magnetic gear oil drain screw equipped: remove all metal particles from the screw before installing it. 4. Remove the oil level plug to allow the oil to drain completely. Caution: ecm00710 inspect the used oil after it has been drained....
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Maintenance 51 plosion hazard. ● dispose of old gasoline according to lo- cal regulations. 1. Empty the fuel tank into an approved container. 2. Pour a small amount of suitable solvent into the tank. Install the cap and shake the tank. Drain the solvent completely. 3. Remove the screws holding the f...
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Maintenance 52 emu29320 checking battery (for electric start models) warning ewm00330 battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poisonous and highly caustic. Always follow these preventive mea- sures: ● avoid bodily contact with electrolytic fluid as it can ...
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Maintenance 53 note: consult a yamaha dealer when charging or re-charging batteries. Emu29331 connecting the battery warning ewm00570 mount the battery holder securely in a dry, well-ventilated, vibration-free loca- tion in the boat. Install a fully charged bat- tery in the holder. Caution: ecm01121...
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Maintenance 54 marine growth. Do not use anti-fouling paint which includes copper or graphite. These paints can cause more rapid engine corrosion. Zmu01943.
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55 trouble recovery emu29422 troubleshooting a problem in the fuel, compression, or igni- tion systems can cause poor starting, loss of power, or other problems. This section de- scribes basic checks and possible remedies, and covers all yamaha outboard motors. Therefore some items may not apply to ...
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Trouble recovery 56 q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system. Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have servic...
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Trouble recovery 57 a. Have serviced by a yamaha dealer. Q. Is load on boat improperly distributed? A. Distribute load to place boat on an even plane. Q. Is water pump or thermostat faulty? A. Have serviced by a yamaha dealer. Q. Is there excess water in fuel filter cup? A. Drain filter cup. Engine ...
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Trouble recovery 58 q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with rec- ommended type. Q. Is high pressure fuel pump drive belt bro- ken? A. Have serviced by a yamaha dealer. Q. Is engine not responding properly to shift lever position? A. Have serviced by a yama...
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Trouble recovery 59 note: consult your yamaha dealer if the new fuse immediately blows again. Emu29510 power trim and tilt will not operate if the engine cannot be tilted up or down with the power trim and tilt/ the power tilt because of a discharged battery or a failure with the power trim and tilt...
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Trouble recovery 60 starter mechanism or top cowling after the engine is running. ● do not touch the ignition coil, spark plug wire, spark plug cap, or other elec- trical components when starting or op- erating the motor. You could get an electrical shock. Emu29572 emergency starting engine 1. Remov...
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Trouble recovery 61 procedure below. 1. Remove the cdi unit cover or electrical cover, if equipped. 2. Disconnect the yellow cord (emergency circuit) of the cdi unit to return to port. Warning ewm00350 when the yellow cord is disconnected, the idle and low speeds are slightly high- er than normal. U...
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Trouble recovery 62 5. Turn the main switch to (on). 6. Turn the main switch to (start). Caution: ecm00191 ● never turn the main switch to “ ” (start) while the engine is running. ● do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more th...
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Trouble recovery 63 2. Remove the spark plugs and face the spark plug holes downward to allow any water, mud, or contaminants to drain. 3. Drain the fuel from the carburetor, fuel filter, and fuel line. 4. Feed fogging oil or engine oil through the carburetor(s) and spark plug holes while cranking w...
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64 consumer information emu29811 important warranty information for u.S.A. And canada.
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Consumer information 65.
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Consumer information 66 emu29820 yamaha motor corporation, u.S.A. Outboard motor two year limited warranty.
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Consumer information 67.
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Consumer information 68.
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Consumer information 69 emu29840 important warranty information if you use your yamaha outside u.S.A. Or canada.
Page 75: 90D
Printed in japan march 2004–0.9 × 1 ! Printed on recycled paper 90d owner’s manual 6h1-28199-14 u.S.A.Edition lit-18626-05-86 6h1-28199-14_hyoshi 3/10/04 10:40 am page 1.
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Yamaha motor co., ltd. Made in japan pays d'origine japon outboard motor warranty registration enregistrement de la garantie du moteur hors-bord please complete and mail this card. This information is necessary to accurately register your unit for warranty. Veuillez signer ci-dessous pour attester q...
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Place postage here attn: warranty department warranty card 2/27/02 11:47 am page 2.