Page 1
F350 LF350 OWNER’S MANUAL Read this manual carefully before operating this LIT-18626-11-25 outboard motor. 6AW-28199-3B-E0...
Page 2
EMU25064 Les gaz d’échappement du moteur de ce produit contiennent des substances chimiques connues dans l’État de Californie pour provoquer le cancer, des anomalies congénitales et des troubles de la reproduction. ZMU07696 Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating.
Instruments and indicators......... 30 Other special situations..........4 6Y9 Multifunction Color Gauge......30 General information ..........6 Yamaha Security System indicator (optional) ..30 Identification numbers record........6 Engine warm-up indicator ........30 Engine synchronization indicator ......30 Outboard motor serial number ........6 Overheat alert ............
Page 5
Operating the port / center / starboard engine ..50 MOTOR THREE-YEAR LIMITED Boat direction ............53 WARRANTY ............ 78 Trolling ..............55 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE Adjusting trolling speed..........55 Stopping engine ..........55 U.S.A. OR CANADA........80 Procedure for stopping engine........55 Trimming outboard motor........56 INDEX..............
Have an approved PFD on board for every occupant. The power trim and tilt switches operate even when the Yamaha recommends that you must wear a PFD whenever main switch is off. Keep people be away from the switches boating. At a minimum, children and non-swimmers should whenever working around the motor.
Safety information ating and when operating above an idle speed. Standing or There is complete loss of a boat. sitting in non-designated locations may result in being Contact local law enforcement personnel if a report is nec- thrown either overboard or within the boat due to waves, essary.
Safety information In the U.S.A. EMU33702 Steering and sailing rules and sound signals United States Coast Guard Whenever two vessels on the water meet one another, one Consumer Affairs Staff (G-BC) vessel has the right-of-way; it is called the “stand-on” ves- Office of Boating, Public, and Consumer Affairs sel.
Safety information Narrow channels and bends When navigating in narrow channels, you should keep to the right when it is safe and practical to do so. If the operator of a power-driven vessel is preparing to go around a bend that may obstruct the view of other water vessels, the oper- ator should sound a prolonged blast on the whistle (4 to 6 seconds).
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 stolen. ZMU05885...
General information ZMU01694 ZMU06040 EMU46132 Compliance mark and manufactured date label Engines affixed with this label conform to the regulations for each country. This label is affixed to the clamp bracket or swivel bracket. ZMU07133 1. Key number EMU38981 EC Declaration of Conformity (DoC) This declaration is included with outboard motors that con- ZMU08211 form to European regulations.
Page 13
General information ZMU08191 1. ICES-002 Compliance Label Manufactured date The manufactured date is stamped on the label for the en- gines that conform to the regulations for U.S. Environmental Protection Agency (EPA). The models that manufactured exclusively for the Oceanian countries may not have manu- factured date on the label.
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. EMU33836 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. ZMU05950...
Page 15
General information 6EE-H1994-40 6EE-G2794-40 6EE-H1994-50 6EE-G2794-50 ZMU06191 EMU34652 Contents of labels The above warning labels mean as follows. EWM01682 Keep hands, hair, and clothing away from rotating parts while the engine is running. Do not touch or remove electrical parts when starting ...
Page 16
General information EMU35133 Symbols The following symbols mean as follows. Notice/Warning ZMU05696 Read Owner’s Manual ZMU05664 Hazard caused by continuous rotation ZMU05665 Electrical hazard ZMU05666...
Specifications and requirements Battery rating (MCA/ABYC): EMU34522 Specifications 900–1370 A TIP: Battery rating (RC/SAE): 170 minutes “(AL)” stated in the specification data below represents the numerical value for the aluminum propeller installed. Battery rating (CCA/EN): Likewise, “(SUS)” represents the value for stainless steel 670–1080 A Battery rating (20HR/IEC): propeller installed and “(PL)”...
The battery cable size and length are critical. Consult your Perform setting of the outboard motor and the digital elec- Yamaha dealer about the battery cable size and length. tronic control unit in the following cases. EMU36303 If a used outboard motor is installed ...
Recommended engine oil: every application. YAMALUBE 4M FC-W or 4-stroke out- Your Yamaha dealer can help you select the right propeller board motor oil for your boating needs. Select a propeller that will allow the Recommended engine oil grade 1:...
Yamaha outboard motor. However, if gasoline with encountered in automotive use. In addition, gasoline used Ethanol is the only fuel available in your area, your Yamaha for boating will typically age longer between refills than gas- outboard motor is calibrated to run properly on fresh E10...
The original Agency (EPA) regulations for marine SI engines. See the la- Yamaha paint surface may be scuffed lightly before apply- bel affixed to your engine for details. ing anti-fouling paint, but do not remove the original paint.
Page 22
Specifications and requirements equivalent to the U.S. EPA’s 2006 standards for marine en- gines. ZMU05663 ZMU01702 EMU40341 Two Stars—Very Low Emission The two-star label identifies engines that meet the Air Re- sources Board’s Personal Watercraft and Outboard marine engine 2004 exhaust emission standards. Engines meeting these standards have 20% lower emissions than One Star- Low-Emission engines.
Components EMU46721 Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). ZMU05813 1. Top cowling 2. Anti-cavitation plate 3. Propeller* 4. Cooling water inlet 5. Clamp bracket 6.
Components EMU46731 Optional items The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer. single type ZMU08567 1. Digital electronic control (side-mount type) 5. Digital electronic control (single type) 2. Engine shut-off switch 6. Switch panel (for use with single type) 3.
Page 25
Components 9. Switch panel (for use with twin/triple type) 10. All Start/Stop switch panel (for use with twin/triple type) 11. Yamaha Security System (Y-COP) meters MODE MODE CANCEL MENU ZMU07670 1. 6Y8 Multifunction tachometer 2. 6Y8 Multifunction speed & fuel meter 3.
Therefore, if this product is used outside the country where it was sold, it may violate the laws or regulations regarding radio wave transmission in the country it is used in. For details, consult your Yamaha dealer. ZMU05850 The Yamaha Security System, which protects against theft, consists of the receiver and remote control transmitters.
Pulling the lever back from neutral engages control and outboard motor. Consult your Yamaha dealer reverse. The engine will continue to run at idle until the lever for details.
Components Twin type matically to its set position. The digital electronic control-ac- tive indicator will change from blinking to continuously lit and the digital electronic control will then engage forward and reverse normally. EMU35873 Throttle friction adjuster A friction device provides adjustable resistance to move- ment of the control lever, and can be set according to oper- ator preference.
Components Triple type ZMU06235 ZMU05963 When constant speed is desired, tighten the adjuster to maintain the desired throttle setting. EMU35721 Engine selector switch When all engines have started, you can select the desired engine for operation by pushing the engine selector switch. The engine selector switch works only when all the control levers are in neutral.
Components START ZMU07144 ZMU07145 Twin type 1. Cord 2. Clip 3. Engine shut-off switch EMU35783 START START Main switch The main switch controls the ignition system; its operation is described below. Only equipped with the main station. “ ” (off) ...
Components PORT:Port side engine EMU35154 Power trim and tilt switch on digital electronic CENTER:Center engine control STBD:Starboard side engine The power trim and tilt system adjusts the outboard motor angle in relation to the transom. Pressing the switch “ ”...
Tilt limiter This outboard motor is equipped with a tilt limiter that con- trols the tilt range. TIP: Consult your Yamaha dealer about changing the setting. ZMU08572 EMU35031 Tilt support lever for power trim and tilt model 1. Cowling lock lever(s) To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket.
For further information, see page 39. ZMU05854 TIP: Adding an in-line 10-micron fuel filter has been shown to greatly reduce the chance of fuel contamination problems. Consult your dealer for information about Yamaha 10-mi- cron fuel filters if your boat does not have one.
The engine speed will automatically de- crease to about 2000 r/min. EMU41643 Yamaha Security System indicator (optional) This indicator appears when the Yamaha Security System is in lock mode. Make sure it is off before starting the en- gine. ZMU07238...
indicator blinks. Serious engine damage will occur. Do not continue to operate the engine if an alert de- vice has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU41691 Low oil pressure-alert If the engine oil pressure drops too low, the pop-up window will appear.
ZMU07253 ZMU08325 ZMU07254 1. Yamaha Security System indicator (optional) 2. Engine trouble-alert indicator Return to port and consult a Yamaha dealer immediately. 3. Low battery voltage-alert indicator EMU46661 6YC Multifunction meter 4. Water separator-alert indicator 5. Low oil pressure-alert indicator The 6YC Multifunction meter shows engine status and alert 6.
Page 38
ZMU08328 1. Yamaha Security System indicator (optional) 1. Pop-up window Make sure that the Yamaha Security System indicator is off To return to the normal display before starting the engine. Push the “SET” (set) button, and the low battery voltage- Engine trouble alert alert indicator will start to blink.
indicator blinks. Serious engine damage will occur. Do not continue to operate the engine if an alert de- vice has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU46651 6Y8 Multifunction meters ZMU08335 1.
Page 40
ZMU08412 1. Set button 1. Yamaha Security System indicator (optional) 2. Mode button Make sure that the Yamaha Security System indicator is off before starting the engine. Water separator-alert indicator If water has accumulated in the water separator (fuel filter) while cruising, the water separator-alert indicator will start to blink.
Page 41
indicator blinks. Serious engine damage will occur. Do not continue to operate the engine if an alert de- vice has activated. Consult your Yamaha dealer if the ZMU08414 problem cannot be located and corrected. 1. Engine trouble-alert indicator...
Even if there is no symptom of trouble on shifting or throttle, get back to the port soon and have a Yamaha dealer inspect or repair the outboard motor. ZMU05422 The pop-up window will appear on the Multi-Display.
Engine control system ZMU07155 ZMU07334 If the alert system has activated, stop the engine and check the cooling water inlets: Check trim angle to be sure that the cooling water inlet is submerged. Check the cooling water inlet for clogging. ...
75 of this manual to drain the water from the fuel filter. If the oil level is correct and the alert device does not switch Get back to the port soon and consult a Yamaha dealer im- off, consult your Yamaha dealer.
(keel line), and the port side and starboard the proper mounting height. side outboard motors equidistant from the center outboard motor. Consult your Yamaha dealer or boat manufacturer for fur- ther information on determining the proper mounting loca- tion. ZMU01762...
Operation at full throttle for more than 5 minutes at a time. EMU36382 First-time operation After the first 10 hours: EMU36393 Operate the engine normally. Fill engine oil EMU36402 Getting to know your boat The engine is shipped from the factory without engine oil. If your dealer did not fill the oil, you must fill it before starting All boats have unique handling characteristics.
Insert the oil dipstick completely and remove it again. Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil level is not at the proper level or if it appears milky or dirty.
1. Fitting 2. Flushing device EMU40752 Installing top cowling Check the rubber seal for damage. If the rubber seal is damaged, have it replaced by a Yamaha dealer. ZMU08576 1. Cowling lock lever ZMU08573 1. Rubber seal 2. Bottom cowling Check that the rubber seal is seated all the way around the bottom cowling.
The electrical connections of the battery and cables must be clean and properly connect- ed or the battery will not start the engine. If the battery needs charging, consult your Yamaha dealer or the battery manufacturer’s instructions. EMU30027...
Touch the fuel nozzle to the filler opening or funnel to buzzer sounds and the water separator-alert indicator help prevent electrostatic sparks. blinks, consult your Yamaha dealer immediately. Fill the fuel tank, but do not overfill. WARNING! Do not EMU46880 Procedure for starting engine overfill.
Page 51
Operation ZMU06237 Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds. NOTICE: Never turn the main switch to “ ” (start) while the engine is run- ning. Do not keep the starter motor turning for more than 5 seconds.
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 corrected. ZMU07148 ZMU05848...
Operation switch and engine shut-off switch operate properly. and starboard side engines’ speeds. Check that the engine stops when the main switch is Operate the starboard side engine using the starboard turned to the “ ” (off) position, or press the Start/Stop side control lever.
Operation the three engines. 22.5˚ 22.5˚ ZMU06238 ZMU06000 22.5 22.5 ZMU05831 ZMU05999 To shift from in gear (forward/reverse) to neutral EMU35125 Close the throttle so that the engine slows to idle speed. Shifting EWM00181 Before shifting, make sure there are no swimmers or obstacles in the water near you.
Operation 2. Starboard side control lever 3. Port side engine 4. Center engine 5. Starboard side engine Operating three outboard motors ZMU05829 EMU31743 Stopping boat EWM01511 Do not use the reverse function to slow down or stop ZMU05999 the boat as it could cause you to lose control, be ejected, or impact the steering wheel or other parts of the boat.
Page 56
Operation Operate the center engine using the starboard side con- trol lever. Operating the center engine and starboard side engine ZMU06005 ZMU06008 ZMU07324 Operate the port side engine using the port side control lever. ZMU06009 Operate the starboard side engine using the starboard ...
Page 57
Operation ZMU06010 ZMU07327 Operate the center engine using the port side control le- ver.
Operation EMU35902 Boat direction The illustrations below indicate the boat direction when operating the three outboard motors. When using the port side engine, center engine and starboard side engine ZMU06011 :Boat direction and turning force The size of the arrow is proportional to the turning force. :Propulsion...
Page 59
Operation When using the port side engine and starboard side engine ZMU06012 :Boat direction and turning force The size of the arrow is proportional to the turning force. :Propulsion When using the center engine ZMU06013 :Boat direction and turning force The size of the arrow is proportional to the turning force.
Operation EMU30881 EMU41913 Trolling Procedure for stopping engine The engine can be turned off either by pressing the EMU41832 Adjusting trolling speed Start/Stop button or by turning the main switch to the When the control lever is either in the forward position or in “...
Operation gle will help improve performance and fuel economy while reducing strain on the engine. Correct trim angle depends upon the combination of boat, engine, and propeller. Cor- rect trim is also affected by variables such as the load in the boat, sea conditions, and running speed.
Operation speed. Operating with excessive trim-in at higher speeds also makes the boat unstable. Resistance at the bow is greatly increased, heightening the danger of “bow steering” and making operation difficult and dangerous. ZMU05964 1. Power trim and tilt switch To raise the bow (trim-out), press the switch “...
Operation unit or in the power tilt unit loses pressure. [EWM00263] NOTICE: Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the mo- tor cannot be trailered in the normal running posi- tion, use an additional support device to secure it in the tilt position.
Operation TIP: When the outboard motor is partially tilted up for shallow water operation, the engine speed may be controlled around 2500 r/min. This occurs due to protect the power trim and tilt unit and does not indicate a malfunction. For in- structions on de-activating the engine speed control sys- tem, see page 60.
Operation ZMU05838 ZMU08586 ZMU06020 ZMU05841 To return the outboard motor to the normal running po- sition, press the power trim and tilt switch and slowly tilt the outboard motor down. EMU42232 De-activating the engine speed control system ECM02501 This procedure must be done out of the shallow water. Otherwise, the outboard motor may hits an object in the water as tilting down.
EMU41142 Cleaning the outboard motor saver bar. Consult your Yamaha dealer for further details. When cleaning the outboard motor, the top cowling must be When the outboard motor is tilted prolonged time for moor- installed.
If replacement parts are necessary, use only genuine Reinstall the garden hose connector onto the fitting on Yamaha parts or parts of equivalent design and quality. Any the bottom cowling. Tighten the connector securely. part of inferior quality may malfunction, and the resulting...
Maintenance gers. Yamaha genuine parts and accessories are available from your Yamaha dealer. EMU35522 Maintenance interval guidelines The service intervals provided in the Maintenance Chart were developed based upon “typical” use that includes op- erating at varied speeds, with sufficient time for engine warm up and cool-down, a medium to light load, and an av- erage cruising speed near the 3000 to 4000 rpm range.
When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine should be flushed with clean water after each use. 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 Item Actions Page...
When replacement is due, the engine trouble-alert indicator activates or flashes. Check the trouble codes, and if 87 is displayed on the meter, take it to a Yamaha dealer for a flywheel replacement at no charge. Refer to the meter’s operation manual on how to check the trouble codes.
Do not attempt to di- agnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You should periodically remove and check the spark plug because heat and deposits will ZMU07704 cause the spark plug to slowly break down and erode.
Maintenance Spark plug tightening torque: 28 Nm (2.86 kgf-m, 20.7 ft-lb) TIP: If a torque-wrench is not available when you are reinstalling a spark plug, a good estimate of the correct torque is 1/12 turn past finger-tight. When you are installing a new spark plug, a good estimate of the correct torque is 1/2 to 2/3 turn past finger-tight.
Maintenance Inspect the engine idle speed. If the engine idle speed is out of specification, consult a Yamaha dealer or other qualified mechanic. Idle speed (in neutral): 600–700 r/min EMU35085 Changing engine oil ECM01711 ZMU01897 Change the engine oil after the first 20 hours of opera-...
NOTICE: If there is an excessive quantity of metal ZMU07271 particles on the magnetic gear oil drain screw, this can indicate lower unit problem. Consult your 1. Cotter pin Yamaha dealer. 2. Propeller nut [ECM01901] 3. Washer 4. Spacer 5. Propeller 6.
Securely install the cooling water inlet covers on both the gear case may be damaged. Have a Yamaha sides of the gear case using the bolt and nut removed dealer check and repair the outboard motor.
Then connect the black battery cable to the TIP: NEGATIVE (-) terminal. Inspect ground leads attached to external anodes on equipped models. Consult a Yamaha dealer for inspection and replacement of internal anodes attached to the power unit. EMU29324...
Clean, maintain, and store the battery according to the manufacturer’s instructions. EMU38661 Storing the battery When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), remove the battery and ZMU05941 store it in a cool, dry place.
Please note that all of the items in this section may not apply to your model. If your outboard motor requires repair, bring it to a Yamaha dealer. If the engine trouble-alert indicator is blinking, consult your Yamaha dealer.
Page 79
Is propeller shaft damaged? Have serviced by a Yamaha dealer. Outboard motor Are outboard motor mounting bolts loose? Tighten bolts or have serviced by a Yamaha dealer. mounting Steering pivot Is steering pivot loose or damaged? Have serviced by a Yamaha dealer.
Damage could make system damage and a fire hazard. the outboard motor unsafe to operate. Consult your Yamaha dealer if the new fuse immediately If the outboard motor hits an object in the water, follow the blows again.
If the engine cannot be tilted up or down with the power trim and tilt because of a discharged battery or a failure with the power trim and tilt unit, consult your Yamaha dealer. EMU35614 Water separator-alert indicator blinks while...
15. Start the engine and make sure that the water separa- Drain the water in the filter cup by soaking it up with a tor-alert indicator remains off. Have a Yamaha dealer rag. inspect the outboard motor after returning to port.
Owner’s Manual. The owner of the outboard motor shall give notice to an authorized Yamaha Outboard Motor Dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealer’s place of business.
Page 84
TRANSFER OF WARRANTY Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to Yamaha within ten (10) days of the transfer.
Page 87
Power trim and tilt............1 Yamaha Security System (Y-COP) ......21 Power trim and tilt switch (bottom cowling) ....27 Yamaha Security System indicator (optional) ..... 30 Power trim and tilt switch (digital electronic control)..27 Power trim and tilt switches..........27 Power trim and tilt system, checking ......44 Power trim and tilt will not operate .......76...
Page 89
Genuine Yamaha Accessories — Yamaha only offers accessories that meet our high standards for quality and performance. Buy with confidence, knowing your Genuine Yamaha Accessories will fit right and perform right — right out of the box. Yamalube — Take care of your Yamaha with legendary Yamalube oils, lubricants, and care products. They’re formulated and approved by the toughest judges we know: the Yamaha engineering teams that know your Yamaha from the inside out.
Page 90
Printed in Japan Printed on recycled paper February 2016–0.6 1 !