Page 1
F150A FL150A F150B FL150B OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 63P-28199-2A-E0...
Page 2
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.
If there is any To the owner question concerning this manual, please con- Thank you for selecting a Yamaha outboard sult your Yamaha dealer. motor. This Owner’s Manual contains infor- To ensure long product life, Yamaha recom-...
Safety information EMU33622 area at all times. Be sure no one is in this area Outboard motor safety before operating the power trim and tilt mech- Observe these precautions at all times. anism. EMU36501 The power trim and tilt switches operate even Propeller when the main switch is off.
Have an approved personal flotation device tions. Overloading incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han- recommends that you must wear a PFD dling and lead to an accident, capsizing or whenever boating. At a minimum, children swamping.
Safety information EMU33890 Boating safety publications Be informed about boating safety. Additional publications and information can be obtained from many boating organizations. EMU33600 Laws and regulations Know the marine laws and regulations where you will be boating- and obey them. Several sets of rules prevail according to geographic ZMU06025 location, but all are basically the same as the...
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- 1. Key number len.
General information ZMU06040 EMU25213 C-Tick label Engines affixed with this label conform to cer- tain portion(s) of the Australian Radio Com- munications Act. 1. C-Tick label location ZMU01697...
Read all labels on the outboard motor and the boat. If you need any additional information, contact your Yamaha dealer. EMU33832 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F150A, FL150A, F150B, FL150B...
Page 13
General information ZMU06191 Attach engine shut-off cord (lanyard) to EMU34651 Contents of labels your PFD, arm, or leg so the engine The above warning labels mean as follows. stops if you accidentally leave the helm, which could prevent a runaway boat. EWM01681 WARNING EMU33850...
Page 14
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 EMU34520 Performance: Specifications Full throttle operating range: TIP: F150AET 5000–6000 r/min “(AL)” stated in the specification data below F150BET 4500–5500 r/min represents the numerical value for the alumi- FL150AET 5000–6000 r/min num propeller installed. FL150BET 4500–5500 r/min Likewise, “(SUS)”...
Specifications and requirements Min. cold cranking amps (CCA/EN): Gear oil quantity: 711.0 A F150AET 0.980 L (1.036 US qt, Min. rated capacity (20HR/IEC): 0.862 Imp.qt) 100.0 Ah F150BET 0.980 L (1.036 US qt, Maximum generator output: 0.862 Imp.qt) 36 A FL150AET 0.870 L (0.920 US qt, Drive unit: 0.766 Imp.qt)
This propriate. device prevents the engine from starting un- Your Yamaha dealer can help you select the less it is in neutral. right propeller for your boating needs. Select EMU25694...
EMU25770 Start-in-gear protection need to reduce your throttle setting to stay Yamaha outboard motors or Yamaha-ap- within the recommended engine speed range proved remote control units are equipped with when carrying lighter loads.
All etha- nol blends containing more than 10% ethanol can cause fuel system damage or cause en- gine starting and running problems. Yamaha does not recommend gasohol containing methanol because it can cause fuel system damage or engine performance problems.
An extra engine shut-off cord (lanyard) with EMU25332 clip. Manufactured date label Spare parts, such as an extra set of spark This label is attached to the clamp bracket or plugs. the swivel bracket. Consult your Yamaha dealer for details.
Page 21
Specifications and requirements 1. Manufactured date label location...
EMU2579U Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). F150A, FL150A, F150B, FL150B ZMU06264 1. Top cowling 2. Cowling lock lever(s) 3. Anti-cavitation plate 4.
Page 23
Components F150A, FL150A ZMU06269 1. Remote control box (binnacle mount type)* 2. Switch panel (for use with binnacle type)* 3. Remote control box (binnacle mount type)* 4. Switch panel (for use with binnacle type)* 5. Clip 6. Engine shut-off switch...
Page 24
Components F150B, FL150B ZMU06270 1. Remote control box (binnacle mount type)* 2. Switch panel (for use with binnacle type)* 3. Remote control box (binnacle mount type)* 4. Switch panel (for use with binnacle type)* 5. Digital speedometer* 6. Digital tachometer* 7.
Components ZMU05485 1. Tachometer unit (Square type)* 2. Speedometer unit (Square type)* 3. Speed & fuel meter unit (Square type)* 4. Fuel management meter (Square type)* EMU26181 Remote control box The remote control lever actuates both the shifter and the throttle. The electrical switches are mounted on the remote control box.
Components EMU26233 Free accelerator To open the throttle without shifting into either forward or reverse, push the free accelerator button and move the remote control lever. ZMU04569 1. Remote control lever 2. Power trim and tilt switch 3. Free accelerator 4.
Components matically to its set position. The remote con- EMU25994 Engine shut-off cord (lanyard) and trol will then engage forward and reverse clip normally. The clip must be attached to the engine shut- EMU25976 Throttle friction adjuster off switch for the engine to run. The cord A friction device provides adjustable resis- should be attached to a secure place on the tance to movement of the throttle grip or the...
Components With the main switch in the “ ” (start) po- sition, the starter motor turns to start the en- START START gine. When the key is released, it returns automatically to the “ ” (on) position. START ZMU04564 1. Cord 2.
Components the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is re- leased, the outboard motor will stop in its cur- rent position. For instructions on using the power trim and tilt switch, see pages 52 and 1.
Components EMU26244 Trim tab with anode EWM00840 WARNING An improperly adjusted trim tab could cause difficult steering. Always test run af- ter 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 ZMU05348 1. Tilt support lever 1. Cowling lock lever(s) ECM00660 EMU26462 Flushing device NOTICE This device is used to clean the cooling water Do not use the tilt support lever or knob passages of the motor using a garden hose when trailering the boat.
Page 32
Activation of alert device The water separator-alert indicator of 6Y8 Multifunction Tachometer will blink. The buzzer will sound intermittently only when the gear shift is in neutral. If the alert system has activated, stop the engine and consult a Yamaha dealer imme- diately.
Instruments and indicators EMU31414 If the trim angle of your motor exceeds the Digital tachometer trim operating range, the top segment on The tachometer shows the engine speed and the trim meter display will blink. has the following functions. All segments of the display will light momen- tarily after the main switch is turned on and will return to normal thereafter.
Instruments and indicators EMU26524 Low oil pressure-alert indicator If oil pressure drops too low, the alert indicator will start to blink. For further information, see page 38. ECM00022 NOTICE Do not continue to run the engine if the low oil pressure-alert indicator is on and the engine oil level is lower.
Press the “ ” (mode) button until the the gauge will give false readings. Consult desired hour is displayed. your Yamaha dealer on how to correctly set Press the “ ” (set) button again, the the selector switch. NOTICE: Running out of minute display will begin blinking.
Instruments and indicators Get back to the port soon if an alert device has activated. For charging the battery, consult your Yamaha dealer. The clock operates on battery power. Discon- necting the battery will stop the clock. Reset the clock after connecting the battery.
Instruments and indicators The fuel flow meter displays gallons/hour or EMU36090 Fuel consumption meter / Fuel econo- liters/hour according to operator prefer- my meter / Twin engine speed syn- ence. Select the desired units of measure- chronizer ment by setting the selector switch on the The display shows either the fuel consump- back of the gauge during installation.
Page 38
These variations can be even your Yamaha dealer for adjustments to the greater if the engines are of different year throttle cables. models. In addition, variations in propellers,...
For the optional sensor, consult your Yamaha This indicator only operates when a water dealer. The tachometer unit is available in separator sensor is equipped.
80 of this manual to ECM01601 drain the water from the fuel filter. Get back to NOTICE the port soon and consult a Yamaha dealer Do not continue to run the engine if the immediately. low oil pressure alert device has activated.
Yamaha dealer. In such an event, the engine will not oper- The speed & fuel meter unit is available in ate properly. Consult a Yamaha dealer im- round or square types. Check your speed & mediately. fuel meter unit type for operation information.
Instruments and indicators temperature display, depth display, and clock will also be available. For the optional sen- sors, consult your Yamaha dealer. After the main switch is first turned on, all the displays come on as a test. After a few sec- onds, the gauge will change to normal opera- tion.
Page 43
Instruments and indicators buttons as described in this section. For more information, see the operation manual origi- nally supplied with the meter. After the main switch is first turned on, all the displays come on as a test. After a few sec- onds, the gauge will change to normal opera- tion.
NOTICE Do not continue to operate the engine if a START START alert device has activated. Consult your Yamaha dealer if the problem cannot be lo- cated and corrected. EMU26827 Overheat alert ZMU04584 This engine has the overheat alert device. If the engine temperature rises too high, the alert device will activate.
Page 45
If the oil level The buzzer will sound. is correct and the alert device does not switch off, consult your Yamaha dealer. Twin engine drive users: If the low oil pressure alert system of one en- gine activates, both engines will slow down and the buzzer will sound.
If the engine is mounted too low, wa- boats, mount the outboard motors equidistant ter resistance (drag) will increase, thereby from the centerline. Consult your Yamaha reducing engine efficiency and performance. dealer or boat manufacturer for further infor- Most commonly, outboard motor should be...
Page 47
Installation height. Consult your Yamaha dealer or boat manufacturer for further information on deter- mining the proper mounting height. ZMU01762 ECM01634 NOTICE Make sure that the idle hole is high enough to prevent water from entering the engine even if the boat is stationary with the maximum load.
Operation EMU36381 For the first hour of operation: First-time operation Run the engine at varying speeds up to EMU36391 2000 r/min or approximately half throttle. Fill engine oil For the second hour of operation: The engine is shipped from the factory without Increase engine speed as much as nec- engine oil.
Check that the fuel filter is clean and free of water. If any water is found in the fuel, or if a significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer. ZMU06106 ZMU06107 EMU36462...
2. Clip el mark and lower level mark. Consult 3. Engine shut-off switch your Yamaha dealer if the oil level is out of specified level or if it appears milky or START START dirty.
After installing, check the fitting of the top cowling by pushing it with both hands. If the ZMU06159 top cowling is loose, have it repaired by your 1. Fitting Yamaha dealer. 2. Flushing device EMU36941 Install cowling Be sure that all cowling lock levers are re- leased.
Operation EMU29158 Checking power trim and tilt system EWM01930 WARNING Never get under the lower unit while it is tilted, even when the tilt support lever is locked. Severe injury could occur if the outboard motor accidentally falls. Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.
Operation Refer to the battery manufacturer’s instruc- Wipe up any spilled gasoline immediately tions for checks for your particular battery. with dry rags. Dispose of rags properly EMU30025 according to local laws or regulations. Filling fuel EMU27452 Operating engine EWM01830 WARNING EWM00420 WARNING...
Operation Place the remote control lever in “ ” (neutral). 1. Arrow ZMU04588 EMU27494 Starting engine TIP: EWM01600 WARNING The start-in-gear protection device prevents Before starting the engine, make sure that the engine from starting except when in neu- the boat is tightly moored and that you can tral.
Page 55
Operation START START START ZMU04590 ZMU05828 Turn the main switch to “ ” (on). START ZMU05830 Immediately after the engine starts, re- lease the main switch to return it to “ ” TIP: (on). NOTICE: Never turn the main Dual engine users: When the main switch is switch to “...
EMU31721 Stop switches Consult your Yamaha dealer if the prob- Confirm that turning the main switch to the lem cannot be located and corrected. “ ” (off) position stops the engine.
Operation back to neutral. If this occurs, stop the en- gine, shift to neutral, then restart the en- gine and allow it to warm up. To shift out of neutral Pull the neutral interlock trigger up (if equipped). Move the remote control lever firmly and crisply forward (for forward gear) or rear- ward (for reverse gear) about 35°...
Operation TIP: The engine can also be stopped by pulling the START cord and removing the clip from the engine shut-off switch, then turning the main switch to “ ” (off). EMU27862 Trimming outboard motor EWM00740 WARNING ZMU04599 Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steer- ing the boat more difficult.
Operation EMU27885 Adjusting trim angle (Power trim and tilt) EWM00753 WARNING Be sure all people are clear of the out- board motor when adjusting the trim an- gle. Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.
Operation Bow Up TIP: Too much trim-out puts the bow of the boat Depending on the type of boat, the outboard too high in the water. Performance and econ- motor trim angle may have little effect on the omy are decreased because the hull of the trim of the boat when operating.
Operation ECM00241 NOTICE Before tilting the outboard motor, stop the engine by following the procedure on page 51. Never tilt the outboard mo- tor while the engine is running. Severe damage from overheating can result. Do not tilt up the engine by pushing the tiller handle (if equipped) because this ZMU04602 could break the handle.
Operation Models equipped with trim rods: Once the Push the power trim and tilt switch “ ” outboard motor is supported with the tilt (down) to lower the outboard motor to the support lever, press the power trim and desired position. tilt switch “...
Place the remote control lever in neutral. ter. Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 13) if you use the outboard motor in acidic water or water with a lot of sediment in it, such as muddy or turbid (cloudy) water.
Leaking fuel is a fire hazard. Tighten se- viced by an authorized Yamaha dealer prior to curely the fuel valve when transporting storage. However, you, the owner, with a min- and storing the outboard motor.
Avoid running the outboard If the overheat alert device is activated, turn motor at high speed while on the the engine off, and consult your Yamaha flushing attachment, otherwise over- dealer. heating could occur. [ECM02000] Run the engine at a fast idle for a few minutes in neutral position.
71. Inspect the oil for the presence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use. 1. Vapor separator 2. Drain screw Grease all grease fittings. For further de- 3.
If necessary, hose adapter from the garden hose con- clean and paint the areas. A touch-up paint is nector. available from your Yamaha dealer. Reinstall the garden hose connector onto EMU2850B Periodic maintenance the fitting on the bottom cowling. Tighten EWM01871 the connector securely.
Yamaha marine dealership. EMU28511 Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and pas-...
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 70
Maintenance Initial Every Item Actions 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Fuel line (High pres- Inspection sure) Fuel line (High pres- Inspection or replace- sure) ment as necessary Fuel line (Low pres- Inspection sure) Fuel line (Low pres-...
Main switch/stop Inspection or replace- switch/choke switch ment as necessary Wire harness connec- Inspection or replace- tions/wire coupler con- ment as necessary nections (Yamaha) Meter/gauge Inspection EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Exhaust guide/exhaust Inspection or replace-...
Do not attempt to di- agnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You 1. Spark plug gap should periodically remove and inspect the 2.
9. If you have difficulty verifying the the oil completely. idle speed, or the idle speed requires ad- justment, consult a Yamaha dealer or other qualified mechanic. EMU37494 Changing engine oil...
TIP: be sure the level falls between the upper For more information on the disposal of and lower marks. Consult your Yamaha used oil, consult your Yamaha dealer. dealer if the oil level is out of specified lev- Change the oil more often when operating the engine under adverse conditions such as extended trolling.
Maintenance ZMU01897 Checkpoints Check each of the propeller blades for ero- sion from cavitation or ventilation, or other damage. Check the propeller shaft for damage. Check the splines for wear or damage. Check for fish line tangled around the pro- peller shaft.
EWM00800 WARNING tion and be lost. Be sure the outboard motor is securely Apply Yamaha marine grease or a corro- fastened to the transom or a stable sion resistant grease to the propeller stand. You could be severely injured if shaft.
Page 78
[ECM00713] Place a suitable container under the gear TIP: case. For disposal of used oil, consult your Yamaha Remove the gear oil drain screw and gas- dealer. ket. NOTICE: If there is an excessive Put the outboard motor in a vertical posi- quantity of metal particles on the mag- tion.
Tightening torque: 9.0 Nm (0.92 kgf-m, 6.6 ft-lb) Inspect ground leads attached to external an- odes on equipped models. Consult a Yamaha Put a new gasket on the gear oil drain dealer for inspection and replacement of inter- screw. Insert and tighten the gear oil nal anodes attached to the power unit.
Install a fully charged battery in Connecting an accessory battery (optional) the holder. If connecting an accessory battery, consult your Yamaha dealer about correct wiring. It is ECM01124 NOTICE recommendable to install the fuse to the isola- tor lead as shown in the illustration. For the Do not reverse the battery cables.
Maintenance Single engine Twin engines ZMU05939 ZMU05941 1. Isolator lead with circuit protection 1. Starboard side engine 2. Red cable 2. Port side engine 3. Black cable 3. Red cable 4. Fuse 4. Black cable 5. Battery for accessories 5. Isolator leads with circuit protection 6.
Page 82
Maintenance Disconnect the positive cable(s) and re- move the battery from the boat. Clean, maintain, and store the battery ac- cording to the manufacturer’s instruc- tions.
Yamaha outboard motors. Therefore Q. Has fuel pump malfunctioned? some items may not apply to your model. A. Have serviced by a Yamaha dealer. If your outboard motor requires repair, bring it to your Yamaha dealer. Q. Are spark plug(s) fouled or of incorrect...
Page 84
A. Return to normal operating position. A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? Q. Is fuel filter clogged? A. Have serviced by a Yamaha dealer. A. Clean or replace filter. Q. Is fuel joint connection incorrect? Q. Have ignition parts failed? A.
Page 85
Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or oth- A. Have serviced by a Yamaha dealer. er obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
If the boat is operated with one engine in Q. Is steering pivot loose or damaged? the water but not running, water may run A. Tighten or have serviced by a Yamaha into the exhaust pipe due to wave action, dealer.
(20 A) and a fire hazard. 7. Starter relay fuse (30 A) 8. Spare fuse (20 A, 30 A, 50 A) Consult your Yamaha dealer if the new fuse immediately blows again. EMU29524 Power trim and tilt will not operate...
Trouble Recovery 1. Manual valve screw 1. Water separator-alert indicator Put the engine in the desired position, Stop the engine. then tighten the manual valve screw by Remove the top cowling. turning it clockwise. Disconnect the water detection switch coupler. NOTICE: Be careful not to get EMU37590 Water separator-alert indicator blinks any water on the water detection...
EMU33501 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediate- ly. NOTICE: Do not attempt to run the out- board motor until it has been completely inspected.
Page 90
YAMAHA MOTOR CO., LTD. Printed in Japan March 2010–0.4 × 1 CR Printed on recycled paper...