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Yamaha VF175 Owner's Manual

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VF150
VF175
OWNER'S MANUAL
Read this manual carefully before operating this
LIT-18626-12-46
outboard motor.
6EH-28199-36-E0

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Summary of Contents for Yamaha VF175

  • Page 1 VF150 VF175 OWNER’S MANUAL Read this manual carefully before operating this LIT-18626-12-46 outboard motor. 6EH-28199-36-E0...
  • Page 2 WARNING: This product can expose you to chemicals including engine exhaust, which is known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
  • Page 3 EWM00782 If you purchased this outboard motor used, WARNING see your Yamaha dealer to have it registered A WARNING indicates a hazardous situa- in your name in Yamaha records. tion which, if not avoided, could result in TIP: death or serious injury.

  • Page 4: Table Of Contents

    Table of contents Engine data recording ....14 Safety information......1 Outboard motor safety....1 Specifications and Propeller ..........1 requirements ........15 Rotating parts........1 Hot parts ..........1 Specifications ....... 15 Electric shock........1 Installation requirements ....16 Power trim and tilt ......
  • Page 5 Table of contents Cowling lock lever ......33 Checks before starting engine..52 Flushing device ........ 33 Fuel level .......... 52 Fuel filter........... 34 Removing top cowling...... 52 Tilt support shaft (optional) ....34 Fuel system ........52 Controls..........53 Instruments and indicators ....
  • Page 6 Replacement parts ......75 IMPORTANT WARRANTY Maintenance interval guidelines..75 INFORMATION IF YOU USE Maintenance chart 1 ......76 YOUR YAMAHA OUTSIDE Maintenance chart 2 ......79 Greasing ........... 80 THE U.S.A. OR CANADA..106 Inspecting spark plug....... 82 Inspecting engine idle speed ... 83 INDEX ..........

  • Page 7: Safety Information

    Safety information EMU33623 EMU46150 Outboard motor safety Power trim and tilt Body parts can be crushed between the out- Observe these precautions at all times. board motor and the clamp bracket when the EMU36502 Propeller outboard motor is trimmed or tilted. Keep People can be injured or killed if they come in body parts out of this area at all times.

  • Page 8: Gasoline

    Gasoline and its vapors are highly flamma- Have an approved PFD on board for every ble and explosive. Always, refuel according occupant. Yamaha recommends that you to the procedure on page 57 to reduce the must wear a PFD whenever boating. At a mi- risk of fire and explosion.

  • Page 9: Avoid Collisions

     Avoid sharp turns or other maneuvers that speed and have a Yamaha dealer inspect the make it hard for others to avoid you or un- outboard motor. derstand where you are going.

  • Page 10: Weather

    Safety information successful completion of the course, the user EMU33791 Weather can download a certificate of completion im- Stay informed about the weather. Check mediately or, for a small charge, request one weather forecasts before boating. Avoid by mail. To take this free course, go to boa- boating in hazardous weather.

  • Page 11: Boating Organizations

    Safety information In Canada EMU44741 Boating organizations National Marine Manufacturers Associa- The following organizations provide boating tion Canada safety training and information about boating 14 McEwan Drive safety and laws. Suite 8 Bolton, ON In the U.S.A. L7E 1H1 United States Coast Guard http://www.nmma.org/ Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Af-...

  • Page 12: Rules When Encountering Vessels

    Safety information Stand-on vessel Crossing: (you are traveling across the other The vessel with the right-of-way has the duty vessel’s path) to continue its course and speed, except to Overtaking: (you are passing or being avoid an immediate collision. When you passed by another vessel) maintain your direction and speed, the other In the following illustration, your boat is in the...

  • Page 13: Other Special Situations

    Safety information Crossing ter vessels, the operator should sound a pro- When two power driven vessels are crossing longed blast on the whistle (4 to 6 seconds). each other’s path close enough to run the risk If another vessel is around the bend, it too of collision, the vessel which has the other on should sound the whistle.
  • Page 14 Safety information red buoys are passed on the starboard (right) side when proceeding from open water into port, and black buoys are to port (left) side. When navigating out of port, your position with respect to the buoys should be reversed; red buoys should be to port and black buoys to starboard.
  • Page 15 Safety information ZMU01708...

  • Page 16: General Information

    Write down your outboard motor serial num- ber in the spaces provided in the following il- lustration to assist you in ordering spare parts from your Yamaha dealer or for reference if your outboard motor is stolen. ZMU01694 1. Key number...
  • Page 17 General information ZMU08190 1. Regulatory Compliance Mark (RCM) ICES-002 Compliance Label Engines affixed with this mark meet all re- quirements of the Canadian Interference Causing Equipment Regulations. ZMU08191 1. ICES-002 Compliance Label...

  • Page 18: Read Manuals And Labels

     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. ZMU07734...
  • Page 19 General information 6EE-H1994-40 6EE-G2794-40 6EE-H1994-50 6EE-G2794-50 ZMU06191  Attach engine shut-off cord (lanyard) to EMU34652 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.

  • Page 20: Engine Data Recording

    Yamaha diagnostic tool is attached to the engine, such as when maintenance checks or service procedures are performed. Yamaha will not disclose this data to a third party except in the following cases. In addi- tion, Yamaha may provide engine data to a...

  • Page 21: Specifications And Requirements

    Specifications and requirements Spark plug (NGK): EMU40501 Specifications LFR6A-11 TIP: Spark plug gap: “(SUS)” indicates that the specification is for 1.0–1.1 mm (0.039–0.043 in) the outboard motor when it is equipped with Steering system: a stainless steel propeller. Remote steering EMU2821Z Starting system: Electric starter...

  • Page 22: Installation Requirements

    Installation requirements working correctly and you should dis- EMU33566 continue using the outboard. Contact Boat horsepower rating your Yamaha dealer. EWM01561 WARNING The remote control unit must be equipped Overpowering a boat can cause severe in- with a start-in-gear protection device(s). This stability.

  • Page 23: Battery Requirements

     CCA/SAE and RC [EWM01821]  MCA/ABYC and RC Battery cable The battery cable size and length are critical. Battery rating (CCA/SAE): Consult your Yamaha dealer about the bat- 680–1150 A tery cable size and length. Battery rating (MCA/ABYC): EMU36303 770–1370 A...

  • Page 24: Start-In-Gear Protection

    Propeller example pellers for every Yamaha outboard motor and every application. Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boat- load.

  • Page 25: Fuel Requirements

    API SE/SF/SG/SH/SJ/SL pinging occurs, use a different brand of gas- Recommended engine oil grade 2: SAE 15W-40/20W-40/20W-50 oline or premium unleaded fuel. Yamaha rec- API SH/SJ/SL ommends that you use alcohol-free gasoline Engine oil quantity (without oil filter (see Gasoline with Ethanol) whenever possi- replacement): ble.
  • Page 26 However, if gasoline with Ethanol is the the gasoline in a layer at the bottom of the only fuel available in your area, your Yamaha fuel tank. This ethanol and water mixture is outboard motor is calibrated to run properly...

  • Page 27: Gasoline Additives

    In addi- use on aluminum may be applied to the out- tion, gasoline used for boating will typically board motor. The original Yamaha paint sur- age longer between refills than gasoline used face may be scuffed lightly before applying...

  • Page 28: Outboard Motor Disposal Requirements

    YAMAHA MOTOR CO.,LTD.  Spare parts, such as an extra set of spark ZMU06894 plugs. EMU25275 Consult your Yamaha dealer for details. Star labels EMU25223 Your outboard motor is labeled with a Califor- Emission control information nia Air Resources Board (CARB) star label.
  • Page 29 Specifications and requirements EMU40331 EMU40351 One Star—Low Emission Three Stars—Ultra Low Emission The one-star label identifies engines that The three-star label identifies engines that meet the Air Resources Board’s Personal meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2001 Watercraft and Outboard marine engine 2008 exhaust emission standards.

  • Page 30: Components

    Components EMU46722 Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). VF150LA, VF175LA ZMU08009 1. Top cowling 2. Cowling lock lever 3. Clamp bracket 4. Power trim and tilt unit 5.
  • Page 31 Components VF150XA, VF175XA ZMU07738 1. Top cowling 2. Cowling lock lever 3. Clamp bracket 4. Power trim and tilt unit 5. Anode 6. Flushing device 7. Anti-cavitation plate 8. Trim tab (anode) 9. Propeller* 10.Cooling water inlet...
  • Page 32 Components ZMU08010 1. Ignition coil 2. Cowling lock lever 3. Oil dipstick 4. Power trim and tilt switch 5. Oil level plug 6. Oil filler cap 7. Fuse box 8. Fuel filter 9. Cooling water inlet 10.Gear oil drain screw...

  • Page 33: Optional Items

    Components EMU46731 Optional items The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer. YAMAHA SPEED Km/h knot mile TRIP TIME BATT MODE MODE mode 1. Remote control box (side mount type) 2. Remote control box (binnacle mount type) 3.

  • Page 34: Remote Control Lever

    Components 35˚ 35˚ ZMU04572 ZMU06901 1. Neutral “ ” 1. Power trim and tilt switch 2. Forward “ ” 2. Remote control lever 3. Reverse “ ” 3. Free accelerator button 4. Fully closed 4. Throttle friction adjuster 5. Throttle EMU26191 Remote control lever 6.

  • Page 35: Throttle Friction Adjuster

    Components EMU40606 Throttle friction adjuster The throttle friction adjuster can be used to 35˚ adjust the resistance to movement of the re- mote control lever, and can be set according to operator preference. Adjust the throttle friction according to the following procedure. Remove the cap.

  • Page 36: Engine Shut-Off Cord (Lanyard) And Clip

    Components Also, without engine power, the boat could slow rapidly. This could cause peo- ple and objects in the boat to be thrown forward. [EWM00123] ZMU07026 1. Throttle friction adjuster ZMU07027 1. Engine shut-off cord (lanyard) 2. Clip 3. Engine shut-off switch ZMU06989 1.

  • Page 37: Power Trim And Tilt Switch On Remote Control

    Components With the main switch in the “ ” (on) position, the electrical circuits are on, and the key can- not be removed.  “ ” (start) With the main switch in the “ ” (start) po- sition, the starter motor turns to start the en- gine.

  • Page 38: Trim Tab With Anode

    Components falling overboard and could distract the operator, increasing the risk of collision with another boat or an obstacle. ZMU07742 1. Cap 2. Bolt ZMU07741 1. Power trim and tilt switch 3. Trim tab EMU26246 Trim tab with anode EWM00841 WARNING An improperly adjusted trim tab could cause difficult steering.

  • Page 39: Cowling Lock Lever

    Components ZMU07745 1. Cowling lock lever ZMU07744 1. Tilt support lever ECM00661 ZMU07746 NOTICE 1. Cowling lock lever Do not use the tilt support lever or knob EMU40803 Flushing device when trailering the boat. The outboard The flushing device is used to clean the cool- motor could shake loose from the tilt sup- ing water passages of the outboard motor port and fall.

  • Page 40: Fuel Filter

    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. EMU40595 Tilt support shaft (optional) The tilt support shaft is available as an option for this outboard motor.
  • Page 41 Components ZMU08019 1. Tilt support shaft Tilt the outboard motor down.

  • Page 42: Instruments And Indicators

    Instruments and indicators EMU41391 Digital tachometer The tachometer shows the engine speed and 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. ZMU01740 EMU26652 Hour meter This meter shows the number of hours the...

  • Page 43: Overheat-Alert Indicator

    For fur- ZMU01737 ther information, see page 53. 1. Overheat-alert indicator EMU26603 Digital speedometer This gauge shows the boat speed and other information. YAMAHA SPEED km/h knot ZMU01736 mile 1. Low oil pressure-alert indicator TRIP...

  • Page 44: Fuel Gauge

    Consult Push the “ ” (mode) button until the your Yamaha dealer on how to correctly set desired hour value is displayed. the selector switch. NOTICE: Running out of Push the “...

  • Page 45: Fuel Level-Alert Indicator

    Get back to the port soon if an alert device ZMU07004 has activated. For charging the battery, con- The clock operates on battery power. Dis- sult your Yamaha dealer. connecting the battery will stop the clock. Reset the clock after connecting the battery. EMU36081...

  • Page 46: Fuel Flow Meter

    Instruments and indicators Fuel flow readings are not accurate when the engine is operating under about 1300 r/min. As the fuel pump cycles on and off, the dis- play indicates either no fuel flow or higher flow than the actual average use. Dual engine users: the fuel flow meter can display the fuel flow of either or both engines.
  • Page 47 Instruments and indicators  The Yamaha digital speedometer and fuel To reset the total fuel consumption meter to zero, press the “ ” (set) and “ ” (mode) management meter calculates speed, buttons at the same time. miles traveled, and fuel economy by water movement at the stern of the boat.

  • Page 48: Water Separator-Alert Indicator

    2. Mode button throttle can synchronize them. If large differences in trim angle or throttle are needed to synchronize the engines, consult your Yamaha dealer for adjustments to the throttle cables. EMU26794 Water separator-alert indicator This indicator will blink when water has accu- mulated in the water separator.
  • Page 49 5. Overheat-alert indicator 6. Low oil pressure-alert indicator 7. Cooling water pressure indicator (optional) Yamaha Security System indicator (op- tional) This indicator appears, when the Yamaha Se- curity System is in lock mode. Lock mode ZMU08410 1. Speedometer 2. Fuel meter 3.
  • Page 50 Yamaha dealer immediately. voltage alert device has activated. For charg- ECM00911 NOTICE ing the battery, consult your Yamaha dealer. Overheat-alert indicator Gasoline mixed with water could cause If the engine temperature rises too high while damage to the engine.
  • Page 51  Do not continue to operate the engine if an alert device has activated. Consult your Yamaha dealer if the problem can- not be located and corrected. Low oil pressure-alert indicator If the engine oil pressure drops too low, the...

  • Page 52: Engine Control System

    Alert system ECM00093 NOTICE Do not continue to operate the engine if an alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU43754 Overheat alert ZMU07012 This engine has an overheat-alert device. If...

  • Page 53: Water Separator Alert

    ZMU07012 If the alert system has activated, stop the en- gine and check the fuel filter. If any water is found in the fuel, consult a Yamaha dealer. ECM02341 NOTICE Although the buzzer will stop when the en-...
  • Page 54 Engine control system position, do not use the outboard motor. Otherwise, serious engine damage could occur.

  • Page 55: Installation

    Consult your Yamaha dealer or boat ty plate of the boat. If the boat does not manufacturer for further information on deter- have a capacity plate, consult the boat mining the proper mounting height.
  • Page 56 Installation ZMU08007 1. Idle hole...

  • Page 57: Operation

    The outboard motor is shipped from the fac- wear in evenly. Correct break-in will help en- tory without engine oil. If your Yamaha dealer sure proper performance and longer engine did not fill the engine with engine oil, you life.

  • Page 58: Checks Before Starting Engine

    Operation EMU36414 2. Bottom cowling Checks before starting engine 3. Top cowling EWM01922 WARNING If any item in “Checks before starting en- gine” is not working properly, have it in- spected and repaired before operating the outboard motor. Otherwise, an accident could occur.

  • Page 59: Controls

    If any water is found in the fuel, or if a damage, such as cuts, breaks, and wear. significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer. ZMU06873 1. Clip 2. Engine shut-off cord (lanyard)

  • Page 60: Outboard Motor

    Operation Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil lev- el is not at the proper level or if it appears milky or dirty. ZMU07754 1.

  • Page 61: Checking Power Trim And Tilt Unit

    Operation ZMU07756 ZMU07759 1. Top cowling 1. Cowling lock lever 2. Protrusion Check the fitting of the top cowling by 3. Holder pushing it with both hands. NOTICE: If 4. Bottom cowling the top cowling is not installed cor- rectly, water can enter the top cowling and damage the engine, or the top cowling can blow off at high speeds.

  • Page 62: Battery

    EMU36585 Battery Check the battery’s charge. If your boat is equipped with a Yamaha digital speedome- ter, the voltmeter and low battery alert func- tions will help you monitor the battery’s charge. A battery in good condition will pro- vide a minimum of 12 volts.

  • Page 63: Filling Fuel

    Operation EMU30027 EMU40252 Filling fuel Operating engine EWM01831 EWM02601 WARNING WARNING  Gasoline and its vapors are highly flam- This product emits exhaust gases which mable and explosive. Always refuel ac- contain carbon monoxide, a colorless, cording to this procedure to reduce the odorless gas which could cause brain risk of fire and explosion.
  • Page 64 Operation EMU40643 Procedure for starting engine EWM02592 WARNING  Failure to attached engine shut-off cord (lanyard) could result in a runaway boat if operator is ejected. Attach the engine shut-off cord to a secure place on your clothing, or your arm or leg while oper- ating.

  • Page 65: Checks After Starting Engine

    Operation START ZMU07031 ZMU06928 Immediately after the engine starts, re- lease the main switch to return it to the ” (on) position. NOTICE: Never turn “ the main switch to “ ” (start) while the engine is running. Do not keep the starter motor turning for more than 5 seconds.

  • Page 66: Warming Up Engine

    While the boat is tightly moored, and without the lower case or the cooling water pilot applying throttle, confirm that the engine hole is blocked. Consult your Yamaha shifts smoothly into forward and reverse, and dealer if the problem cannot be located back to neutral.
  • Page 67 Operation ZMU07042 ZMU07036 1. Neutral interlock trigger Move the remote control lever firmly and crisply forward (for forward gear) or rear- ward (for reverse gear) about 35° (a de- tent can be felt). 35˚ 35˚ ZMU06931 After the engine is at idle speed in gear, move the remote control lever firmly and crisply to the neutral position.

  • Page 68: Stopping Boat

    Operation ZMU06926 ZMU07033 EMU40473 Stopping boat EWM01511 WARNING  Do not use the reverse function to slow down or stop the boat as it could cause you to lose control, be ejected, or im- pact the steering wheel or other parts of the boat.

  • Page 69: Adjusting Trim Angle

    Operation The trim angle of the outboard motor helps the engine off. Do not adjust the trim an- determine the position of the bow of the boat gle with this switch while the boat is in the water. Correct trim angle will help im- moving.

  • Page 70: Tilting Up And Down

    Operation bow up, the boat may have a greater tenden- the bow is greatly increased, heightening the cy to steer to one side or the other. Compen- danger of “bow steering” and making opera- sate for this as you steer. When the bow of tion difficult and dangerous.

  • Page 71: Procedure For Tilting Up

    Operation  To prevent the cooling water passages from becoming frozen when the ambi- ent temperature is 5°C (41°F) or below, tilt the outboard motor up after it has been stopped 30 seconds or more. EMU46192 Procedure for tilting up Tilting up when using the tilt support shaft Move the remote control lever to the ZMU07768...
  • Page 72 Operation Make sure that the trim rods retract Push the “ ” (up) side of the power trim completely during mooring. This pro- and tilt switch to fully tilt the outboard tects the rods from marine growth and motor up. corrosion, which could damage the power trim and tilt mechanism.

  • Page 73: Procedure For Tilting Down

    Operation more detailed information, see page [ECM01642] ZMU07764 1. Trim rod EMU46200 Procedure for tilting down Tilting down when using the tilt support shaft If using the tilt support shaft, fully tilt the outboard motor up, and then remove the tilt support shaft.

  • Page 74: Shallow Water

    Operation ZMU06987 ZMU07771 1. Power trim and tilt switch 1. Power trim and tilt switch Tilting down when using the tilt support lever Push the “ ” (up) side of the power trim and tilt switch until the outboard motor is supported by the tilt rod and the tilt sup- port lever becomes free.

  • Page 75: Cruising In Other Conditions

    WARNING! Using the power trim and Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use tilt switch on the bottom cowling while the optional chromium-plated water pump kit the boat is moving or engine is on...
  • Page 76 Operation in acidic water or water with a lot of sediment in it, such as muddy or turbid (cloudy) water. After operating in such water, flush the cool- ing passages with fresh water to prevent cor- rosion. Also rinse the outside of the outboard motor with fresh water.

  • Page 77: Maintenance

    A partially filled fuel tank, less than 7/8 full but must be secured in the tilted-up position us- not completely empty, is not recommended. ing a support device, such as the Yamaha Air space above the gasoline allows air Trailering Support.
  • Page 78 The use of “Yamalube Fuel Stabilizer & Con- ditioner Plus” eliminates the need to drain the gine is running. [EWM00092] fuel system. Consult your Yamaha dealer or TIP: other qualified mechanic if the fuel system is  When using the flushing attachment, main- to be drained instead.

  • Page 79: Lubrication

    92. Check the gear oil for the pres- ence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use. Lubricate all grease fittings. For further details, see page 80.

  • Page 80: Cleaning The Outboard Motor

    Yamaha dealer or other qualified mechan- EMU44342 ic do the work. Cleaning the outboard motor...

  • Page 81: Replacement Parts

    Maintenance For North America: A service manual is available for purchase through your Yamaha dealer for owners who have the mechanical skills, tools, and other equipment necessary to perform mainte- nance not covered by this owner’s manual. EMU28512 Replacement parts...

  • Page 82: Maintenance Chart 1

     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...
  • Page 83 Maintenance Initial Every 20 hours Item Actions Page 100 hours 300 hours 500 hours (1 year) (3 years) (5 years) months) Inspection or re- Fuel filter (can be placement as nec- disassembled) essary Fuel line (High Inspection — pressure) Inspection or re- Fuel line (High placement as nec- —...
  • Page 84 — switch essary Wire harness con- Inspection or re- nections/wire cou- placement as nec- — pler connections essary (Yamaha) Me- Inspection — ter/gauge EMU46050 *1 exhaust cover *2 cylinder head, crankcase cover, cooling water passage, exhaust cover...

  • Page 85: Maintenance Chart 2

    Maintenance EMU46082 Maintenance chart 2 Every Item Actions Page 1000 hours Inspection or re- Exhaust guide/ex- placement as nec- — haust manifold essary Timing belt Replacement —...

  • Page 86: Greasing

    Maintenance EMU41303 Greasing Yamalube Marine Grease VF150LA, VF175LA ZMU08013...
  • Page 87 Maintenance VF150XA, VF175XA ZMU07775...

  • Page 88: Inspecting Spark Plug

    Do not attempt to diagnose any problems yourself. Instead, take the out- board motor to a Yamaha dealer. You should periodically remove and check the spark plug because heat and deposits will cause the ZMU07777 spark plug to slowly break down and erode.

  • Page 89: Inspecting Engine Idle Speed

    Inspect the engine idle speed. If the en- 2. Spark plug part number gine idle speed is out of specification, 3. Spark plug I.D. mark (NGK) consult a Yamaha dealer or other quali- fied mechanic. Spark plug gap: 1.0–1.1 mm (0.039–0.043 in) Idle speed (in neutral): 650–750 r/min...
  • Page 90 If an oil changer is not available, drain the engine oil by removing the drain screw. If you are not familiar with the proce- dure for changing the engine oil, consult your Yamaha dealer. Changing the engine oil using an oil changer ZMU07842 (recommended) 1.
  • Page 91 For L transom models, skip steps 5 and 14 and lower marks. Consult your Yamaha because the apron does not have to be re- dealer if the oil level is out of specified moved.
  • Page 92 Maintenance Prepare a suitable container that holds a larger amount than the engine oil capac- ity. Remove the drain screw and gasket while holding the container under the drain hole. Let the oil drain completely. Wipe up any spilled oil immediately. L transom models ZMU08017 Start the engine.
  • Page 93 TIP:  For more information on the disposal of be sure the level falls between the upper and lower marks. Consult your Yamaha used oil, consult your Yamaha dealer.  Change the oil more often when operating dealer if the oil level is out of specified level.

  • Page 94: Replacing The Engine Oil Filter

     Be sure the outboard motor is securely fastened to the transom or a stable stand. 1. O-ring Yamaha recommends you to have a Yamaha Turn the engine oil filter clockwise and dealer replace the engine oil filter. tighten it to the specified torque.

  • Page 95: Inspecting Wiring And Connectors

    Yamaha’s experience gained over many years of research and development into oil since the 1960’s helps make Yamalube the best choice for your Yamaha engine. EMU29116 Inspecting wiring and connectors  Inspect that each connector is engaged se- curely.

  • Page 96: Inspecting Propeller

    Maintenance VF150XA, VF175XA ZMU06953 Checkpoints  Check each of the propeller blades for ero- sion from cavitation or ventilation, and oth- er damage.  Check the propeller shaft for damage.  Check the splines for wear and damage.  Check for fish line tangled around the pro- peller shaft.

  • Page 97: Installing Propeller

    Maintenance VF150LA, VF175LA EMU46221 Installing propeller ECM00502 NOTICE Make sure to use a new cotter pin and bend the ends over securely. Otherwise, the propeller could come off during oper- ation and be lost. Apply Yamalube Marine Grease to the propeller shaft.

  • Page 98: Changing Gear Oil

    NOTICE: Do not reuse the cotter pin. can indicate lower unit problem. Con- Otherwise, the propeller can come off sult your Yamaha dealer. during operation. [ECM01901] [ECM01892] ZMU08022 ZMU06956 1.

  • Page 99: Inspecting And Replacing Anodes

    2. Oil level plug Put a new gasket on the gear oil drain TIP: screw. Insert and tighten the gear oil For disposal of used oil, consult your Yamaha drain screw to the specified torque. dealer. TIP: Put the outboard motor in a vertical posi- Apply a light coat of gear oil to the gear oil tion.

  • Page 100: Inspecting The Battery

    Maintenance VF150XA, VF175XA ECM00721 NOTICE Do not paint anodes, as this would render them ineffective. TIP: Consult a Yamaha dealer for inspecting and replacement of internal anodes attached to the engine. VF150LA, VF175LA ZMU07784 1. Anode EMU43971 Inspecting the battery...

  • Page 101: Connecting The Battery

    Connecting an accessory battery (optional) EWM00573 If connecting an accessory battery, consult WARNING your Yamaha dealer about correct wiring. For Mount the battery holder securely in a dry, the fuse size, see ABYC (E-11). well-ventilated, vibration-free location in the boat. Install a fully charged battery in...

  • Page 102: Disconnecting The Battery

    Maintenance Clean, maintain, and store the battery according to the manufacturer’s instruc- tions. ZMU05939 1. Isolator lead with circuit protection 2. Positive battery cable (red) 3. Negative battery cable (black) 4. Fuse 5. Battery for accessories 6. Battery for starting 7.

  • Page 103: Trouble Recovery

    If your outboard motor requires repair, bring Q. Is fuel pump malfunctioning? it to a Yamaha dealer. A. Have serviced by a Yamaha dealer. If the engine trouble-alert indicator is blinking, consult your Yamaha dealer. Q. Are spark plugs fouled or of incorrect ty- Starter will not operate.
  • Page 104 A. Clean or replace fuel filter. A. Inspect cooling water inlet for obstruc- tions. Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer. Q. Is low oil pressure-alert indicator on or blinking? Q. Has alert system activated? A.
  • Page 105 Yamaha dealer. Q. Is outboard motor mounted at incorrect Q. Are electrical parts malfunctioning? height on transom? A. Have serviced by a Yamaha dealer. A. Have outboard motor adjusted to proper transom height. Q. Is specified fuel not being used? A.

  • Page 106: Temporary Action In Emergency

    Trouble Recovery Q. Are weeds or other foreign material tan- Have a Yamaha dealer check the out- gled on propeller? board motor before operating it again. A. Remove and clean propeller. EMU46603 Replacing fuse EWM00632 Q. Are outboard motor mounting bolts loose? WARNING A.

  • Page 107: Power Trim And Tilt Unit Will Not Operate

     Do not perform this procedure on a hot 1. Fuse puller or running engine. Allow the engine to Consult your Yamaha dealer if the new fuse cool. immediately blows again.  There will be fuel in the fuel filter. Keep...
  • Page 108 Trouble Recovery  The fuel filter must be reassembled carefully with the O-ring, filter cup, and hoses in place. Improper assembly or replacement could result in a fuel leak, which could result in a fire or explosion hazard. If the water separator-alert indicator blinks or the buzzer sounds intermittently, perform the following procedure.

  • Page 109: Treatment Of Submerged Outboard Motor

    3. Filter cup If the outboard motor is submerged, immedi- 4. Water detection switch lead ately take it to a Yamaha dealer. Otherwise Drain the water in the filter cup by soak- some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the ing it up with a rag.

  • Page 110: Consumer Information (For North America)

    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 111 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 112: Important Warranty Information If You Use Your Yamaha Outside The U.s.a. Or Canada

    He will be able to contact Yamaha on your behalf to see if any refund can be provided.

  • Page 113: Index

    INDEX 6Y8 Multifunction meters...... 42 Digital speedometer......37 Digital tachometer ........ 36 Accident reporting ........4 Alcohol and drugs........2 Alert system.......... 46 Electric shock ......... 1 Anodes, inspecting and replacing ..93 Emergency equipment......22 Anti-fouling paint ........21 Emergency, temporary action in..
  • Page 114 INDEX Gasoline exposure and spills....2 Outboard motor safety ......1 Gear oil, changing......... 92 Outboard motor serial number ..... 10 Greasing ..........80 Overheat alert ........46 Overheat-alert indicator......37 Overloading ..........2 Hot parts..........1 Hour meter..........36 Passenger training ........
  • Page 115 INDEX Speedometer ........37 Star labels..........22 Yamalube..........88 Starting engine ........57 Start-in-gear protection ......18 Steering and sailing rules and sound signals ..........5 Stop switches ........60 Stopping boat........62 Stopping engine ........62 Storing outboard motor ......71 Submerged outboard motor....
  • Page 117 — 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 118 Printed in Japan December 2018–0.4 × 1 CR Printed on recycled paper...

This manual is also suitable for:

Vf150

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