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OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 63B-28199-2G-E0...
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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.
Any damage tain maximum enjoyment from your new resulting from neglect of these instructions is Yamaha. If you have any question about the not covered by warranty. operation or maintenance of your outboard Some countries have laws or regulations re- motor, please consult a Yamaha dealer.
Safety information EMU33622 tor and the clamp bracket when the motor is Outboard motor safety trimmed or tilted. Keep body parts out of this Observe these precautions at all times. area at all times. Be sure no one is in this EMU36501 area before operating the power trim and tilt Propeller...
Personal flotation devices cording to the boat manufacturers instruc- Have an approved personal flotation device tions. Overloading or incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han-...
Safety information dling and lead to an accident, capsizing or boating in hazardous weather. swamping. EMU33880 Passenger training EMU33772 Avoid collisions Make sure at least one other passenger is Scan constantly for people, objects, and oth- trained to operate the boat in the event of an er boats.
Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto- len. 1. Key number...
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. EMU33831 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. 40V, 50H ZMU06148...
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General information ZMU05670 EMU33912 Contents of labels EWM01671 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. EWM01691 Wear an approved personal flotation WARNING device (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to in-gear protection.
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General information EMU33843 Electrical hazard Symbols The following symbols mean as follows. Notice/Warning ZMU05666 Remote control lever/gear shift lever operat- ing direction, dual direction ZMU05696 Read Owner’s Manual ZMU05667 Engine start/ Engine cranking ZMU05664 Hazard caused by continuous rotation ZMU05668 ZMU05665...
Specifications and requirements 800 ±50 r/min EMU31480 Specifications Engine: TIP: Type: 2-stroke L “(AL)” stated in the specification data below Displacement: represents the numerical value for the alumi- 698.0 cm num propeller installed. Bore × stroke: Likewise, “(SUS)” represents the value for 67.0 ×...
25.0 Nm (2.55 kgf-m, 18.4 ft-lb) Propeller nut: working correctly and you should dis- continue using the outboard. Contact 35.0 Nm (3.57 kgf-m, 25.8 ft-lb) your Yamaha dealer. EMU33554 Installation requirements The remote control unit must be equipped EMU33563 with a start-in-gear protection device(s). This...
Fire, explosion or sparks could result. where a different propeller would be more appropriate. [EWM01820] Your Yamaha dealer can help you select the EMU36300 Multiple batteries right propeller for your boating needs. Select To connect multiple batteries, such as for...
EMU25651 Engine oil requirements engine starting and running problems. Yamaha does not recommend gasohol con- Recommended engine oil: taining methanol because it can cause fuel YAMALUBE 2-stroke outboard motor system damage or engine performance problems.
A tool kit with assorted screwdrivers, pli- ers, wrenches (including metric sizes), and electrical 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.
Components EMU2579M Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. 40VMHD, 50HMHD YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode ZMU04999 1. Manual starter handle 16.
Components 50HET YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode ZMU05000 EMU25802 1. Alert indicator Fuel tank 2. Battery cable If your model was equipped with a portable 3. Anode fuel tank, its function is as follows. 4. Propeller EWM00020 5.
Components ZMU02284 1. Power trim and tilt switch 1. Fuel joint 2. Remote control lever 2. Fuel gauge 3. Neutral interlock trigger 3. Fuel tank cap 4. Neutral throttle lever 4. Air vent screw 5. Main switch EMU25830 6. Engine shut-off switch Fuel joint 7.
Components 6. Throttle 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in- terlock trigger up. 1. Fully open 2. Fully closed EMU25911 Tiller handle To change direction, move the tiller handle to the left or right as necessary.
Components 1. Throttle indicator 1. Forward “ ” 2. Neutral “ ” EMU25975 3. Reverse “ ” Throttle friction adjuster A friction device provides adjustable resis- EMU25941 tance to movement of the throttle grip or the Throttle grip remote control lever, and can be set accord- The throttle grip is on the tiller handle.
Components When constant speed is desired, tighten the 1. Cord adjuster to maintain the desired throttle set- 2. Clip ting. 3. Engine shut-off switch EMU25993 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run.
Components EMU26011 cannot be removed. Choke knob for pull type “ ” (start) To supply the engine with the rich fuel mix- With the main switch in the “ ” (start) po- ture required to start, pull out this knob. sition, the starter motor turns to start the en- gine.
Components EMU26244 Trim tab with anode EWM00840 WARNING An improperly adjusted trim tab could cause difficult steering. Always test run after the trim tab has been installed or re- placed to be sure steering is correct. Be sure you have tightened the bolt after ad- justing the trim tab.
Components 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. ZMU03194 ECM00660 NOTICE Do not use the tilt support lever or knob when trailering the boat. The outboard ZMU03357 motor could shake loose from the tilt sup- EMU26312...
Components EMU26303 Alert indicator If the engine develops a condition which is cause for alert, the indicator lights up. For details on how to read the alert indicator, see page 29. ZMU04922 1. Alert indicator...
Instruments and indicators EMU36014 Indicators EMU36033 Overheat-alert indicator If the engine temperature rises too high, this indicator will light up. For further information on reading the indicator, see page 29. ECM00052 NOTICE Do not continue to run the engine if the ZMU06645 overheat-alert indicator is on.
Instruments and indicators formation on reading the indicator, see page ECM00052 NOTICE Do not continue to run the engine if the overheat-alert indicator is on. Serious en- gine damage will occur. ZMU04631 EMU26651 Hour meter This meter shows the number of hours the engine has been run.
Speedometer the gauge will give false readings. Consult The speedometer displays km/h, mph, or your Yamaha dealer on how to correctly set knots, according to operator preference. Se- the selector switch. NOTICE: Running out lect the desired units of measurement by set- of fuel can damage the engine.
Get back to the port soon if an alert device has activated. For charging the battery, con- sult your Yamaha dealer. The clock operates on battery power. Dis- connecting the battery will stop the clock.
This gauge can be set to count the amount of time elapsed either when the main switch is on or only when the engine is running. For in- structions on how to select the counting mode, consult your Yamaha dealer. ZMU04647 EMU26611 Analog trim meter This gauge shows the trim angle of your out- board motor.
Alert system ECM00091 NOTICE Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU2681A ZMU06647 Overheat alert This engine has an overheat-alert device. If...
Test runs at differ- centerline (keel line) of the boat. ent heights can help determine the optimum mounting height. Consult your Yamaha deal- er or boat manufacturer for further informa- tion on determining the proper mounting...
(if packed). For details, consult board motor because they could be- your Yamaha dealer. WARNING! Avoid come loose due to engine vibration. using bolts, nuts or washers other WARNING!
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Installation least the same quality of material and strength and must be tightened se- curely. After tightening, test run the engine and check their tightness. [EWM00651] ZMU03185 1. Bolts...
Operation EMU36381 plane, then immediately reduce the First-time operation throttle to 3000 r/min or less. EMU30174 Next two hours: Breaking in engine Accelerate at full throttle onto plane, Your new engine requires a period of break- then reduce engine speed to three-quar- in to allow mating surfaces of moving parts to ter throttle (approximately 4000 r/min).
If any water is found in the fuel, or if a gine top cowling, release the lock lever and significant amount of debris is found, the fuel lift off the cowling. tank should be checked and cleaned by a Yamaha dealer. ZMU06084 ZMU06150 EMU36442 Fuel system...
3. Engine shut-off switch ZMU06109 After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your 1. Cord Yamaha dealer. 2. Clip 3. Engine shut-off switch...
Operation that the trim and tilt rod is pushed out completely. Check that the trim and tilt rod is free of corrosion or other flaws. Tilt the outboard motor down. Check that the trim and tilt rod operates smoothly. EMU36582 Battery Check that the battery is in good condition, and fully charged.
Operation the fuel tank cap. ZMU02834 ZMU06621 Tighten the filler cap securely. 10. Wipe up any spilled gasoline immediate- ly with dry rags. Dispose rags properly according to local laws or regulations. EMU27395 Gasoline and oil mixing (50:1) ECM00811 NOTICE Avoid using any oil other than the spec- ified type.
Operation Shake the fuel tank to mix the fuel thor- oughly. 50:1 Make sure that the oil and gasoline are 12 L 14 L 24 L mixed. (0.26 US gal, (3.2 US gal, (3.7 US gal, (6.3 US gal, 0.22 Imp gal) 2.6 Imp gal) 3.1 Imp gal) 5.3 Imp gal)
Operation Symptoms include nausea, dizziness, TIP: and drowsiness. Keep cockpit and cab- Wipe up any spilled gasoline immediately in areas well ventilated. Avoid blocking with dry rags. Dispose rags properly accord- exhaust outlets. ing to local laws or regulations. Squeeze the primer pump, with the ar- If there is an air vent screw on the fuel row pointing up, until you feel it become tank cap, loosen it 2 or 3 turns.
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Operation where it could become entangled, pre- (start) position. venting it from functioning. Avoid accidentally pulling the cord dur- ing normal operation. Loss of engine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward.
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Operation EMU27595 Electric start / prime start models EWM01840 WARNING Failure to attached engine shut-off cord could result in a runaway boat if opera- tor is ejected. Attach the engine shut- off cord to a secure place on your cloth- ing, or your arm or leg while operating.
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Operation keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery will be quickly discharged, thus making it impossible to start the engine. The starter can also be damaged. If the engine will not start after 5 seconds of cranking, return the main switch to “...
Operation Immediately after the engine starts, re- TIP: lease the main switch and allow it to re- The start-in-gear protection device prevents turn to “ ” (on). NOTICE: Never turn the engine from starting except when in neu- the main switch to “ ”...
“ ” (off) position stops the engine. blocked. Consult your Yamaha dealer if Confirm that removing the clip from the en- the problem cannot be located and cor- gine shut-off switch stops the engine.
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Operation ZMU03118 To shift from in gear (forward/reverse) to 1. Neutral interlock trigger neutral Move the remote control lever / gear Close the throttle so that the engine shift lever firmly and crisply forward (for slows to idle speed. forward gear) or backward (for reverse gear) [about 35°...
Operation EMU27821 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. EMU27845 Procedure Push and hold the engine stop button or turn the main switch to “...
Operation trim angle. The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. Correct trim angle will help im- prove performance and fuel economy while reducing strain on the engine. Correct trim angle depends upon the combination of boat, engine, and propeller.
Operation when the motor is trimmed or tilted. board motor when adjusting the trim Use caution when trying a trim position angle, also be careful not to pinch any for the first time. Increase speed gradu- body parts between the drive unit and ally and watch for any signs of instabil- clamp bracket.
Operation cy to steer to one side or the other. Compen- also makes the boat unstable. Resistance at sate for this as you steer. The trim tab can the bow is greatly increased, heightening the also be adjusted to help offset this effect. danger of “bow steering”...
Operation few minutes. Otherwise fuel may leak. knob into the clamp bracket, and then place the tilt lock lever back into the lock ECM00241 position to support the outboard motor. NOTICE NOTICE: Do not use the tilt support Before tilting the outboard motor, stop lever or knob when trailering the the engine by following the procedure boat.
Operation pressure. NOTICE: Do not use [EWM00262] the tilt support lever or knob when trailering the boat. The outboard mo- tor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running po- sition, use an additional support de- vice to secure it in the tilt position.
Operation (up) until the outboard motor is support- ed by the tilt rod and the tilt support lever becomes free. Release the tilt support lever. ZMU03117 Hold the rear of the top cowling with one hand, tilt the outboard motor up slightly and pull out the tilt support knob or re- ZMU02569 turn the tilt support lever.
Operation the water, increasing the chance of ac- ver up to the release position and slowly cident and personal injury. tilt the outboard motor down. Push the tilt lock lever down to the lock ECM00260 position. NOTICE Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when set- ting up for and cruising in shallow water.
Slightly tilt the outboard motor up to the Cruising in muddy, turbid, or acidic water desired position using the power trim Yamaha strongly recommends that you use and tilt switch. WARNING! Using the the optional chromium-plated water pump kit power trim and tilt switch on the bot-...
Disconnect the fuel line from the motor sition using a motor support device such as or shut off the fuel cock, if equipped. a transom saver bar. Consult your Yamaha Remove the engine top cowling and si- dealer for further details.
Seal replacement should be performed WARNING! Do not touch or remove by an authorized Yamaha dealer prior to electrical parts when starting or dur- use. ing operation. Keep hands, hair, and Grease all grease fittings.
EMU28511 Replacement parts ZMU03223 If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent EMU28460 Checking painted surface of motor design and quality. Any part of inferior quality Check the motor for scratches, nicks, or flak- may malfunction, and the resulting loss of ing paint.
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Maintenance at 50 hours, do it instead at 25 hours. This will help prevent more rapid deterioration of engine components.
The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer. Initial Every 20 hours Item...
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Maintenance Initial Every 20 hours Item Actions hours hours hours months) (1 year) (3 years) (5 years) Fuel line(High pres- Inspection or replace- sure) ment as necessary Fuel line(Low pres- Inspection sure) Fuel line(Low pres- Inspection or replace- sure) ment as necessary Inspection or replace- Fuel pump ment as necessary...
WARNING! Instead, take the outboard motor to a When removing or installing a spark Yamaha dealer. You should periodically re- plug, be careful not to damage the in-...
For cleaning or replacement of the Be sure to use the specified spark plug, fuel filter, consult your Yamaha dealer. otherwise the engine may not operate properly. Before fitting the spark plug, measure the electrode gap with a wire thickness gauge;...
For idle speed specifications, see page 9. If you have difficulty verify- ing the idle speed, or the idle speed re- quires adjustment, consult a Yamaha dealer or other qualified mechanic. EMU29113 Checking wiring and connectors...
EWM00800 tion and be lost. WARNING Be sure the outboard motor is securely Apply Yamaha marine grease or a cor- fastened to the transom or a stable rosion resistant grease to the propeller stand. You could be severely injured if shaft.
If the oil is milky, water EMU29302 is getting into the gear case which Cleaning fuel tank can cause gear damage. Consult a EWM00920 Yamaha dealer for repair of the lower WARNING unit seals. [ECM00711] Gasoline is highly flammable, and its va- TIP: pors are flammable and explosive.
Install the cap and shake Inspecting and replacing anode(s) the tank. Drain the solvent completely. Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Yamaha dealer for replacement of external anodes.
ZMU03418 tery’s charge. If the battery needs charg- EMU29322 ing, consult your Yamaha dealer. Checking battery (for electric start Check the battery connections. They models) should be clean, secure, and covered by EWM01900 an insulating cover.
Maintenance EMU29333 they are left on, the electrical system Connecting the battery can be damaged. [ECM01930] EWM00570 Disconnect the negative cable(s) from WARNING the negative (-) terminal. NOTICE: Al- Mount the battery holder securely in a ways disconnect all negative (-) ca- dry, well-ventilated, vibration-free loca- bles first to avoid a short circuit and tion in the boat.
Q. Has fuel pump malfunctioned? If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer. it to your Yamaha dealer. If the engine trouble-alert indicator is flash- Q. Are spark plug(s) fouled or of incorrect ing, consult your Yamaha dealer.
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Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Is fuel joint connection incorrect? A.
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Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or A. Have serviced by a Yamaha dealer. other obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
EWM00631 Q. Is steering pivot loose or damaged? WARNING A. Tighten or have serviced by a Yamaha Substituting an incorrect fuse or a piece dealer. of wire could allow excessive current EMU29433 flow.
3. Spare fuse (20 A) gear protection device does not oper- ate. Make sure the remote control lever Consult your Yamaha dealer if the new fuse is in neutral. Otherwise the boat could immediately blows again. unexpectedly start to move, which...
Trouble Recovery wheel or other moving parts when the is attached to the engine shut-off switch. engine is running. Do not install the The main switch must be “ ” (on), if starter mechanism or top cowling after equipped. 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-...
Trouble Recovery rotor and wind the rope several turns around the flywheel clockwise. Give a strong pull straight out to crank and start the engine. Repeat if neces- sary. OPEN CLOSE ZMU03141 Squeeze the primer pump two or three times to feed fuel. ZMU03429 EMU29671 Engine fails to operate...
If the outboard motor is submerged, immedi- ously for more than 5 seconds, the ately take it to a Yamaha dealer. Otherwise battery will be quickly discharged, some corrosion may begin almost immedi- thus making it impossible to start the ately.
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YAMAHA MOTOR CO., LTD. Printed in Japan April 2009–0.1 × 1 ! Printed on recycled paper...