6L2-9-1R Hyoshi 06.2.9 3:52 PM ページ 1 25 OWNER’S MANUAL U.S.A.
6L2-9-1R Hyoshi 06.2.9 3:52 PM ページ 2 EMU25060 ZMU01690 Read this owner’s manual carefully before operating your outboard motor.
Important manual information EMU31280 To the owner Thank you for choosing a Yamaha outboard motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer.
Table of contents General information .......................... 1 Identification numbers record.......... 1 Outboard motor serial number .......... 1 Key number....................................... 1 Emission control information ........... 1 North American models..................... 1 Safety information ........................... 2 Important labels............................... 3 Warning labels .................................. 3 Basic boating rules (Rules of the road) ........................
Table of contents Adjusting boat trim .......................... 37 Tilting up and down ....................... 38 Procedure for tilting up (manual tilt models) ......................................... 38 Procedure for tilting down (manual tilt models) ...................... 39 Cruising in shallow water .............. 39 Cruising in shallow water (manual tilt models) ...................... 39 Cruising in other conditions........... 41 Maintenance..................................... 42 Specifications ..
General information EMU25170 Identification numbers record EMU25183 Outboard motor serial number The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. 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. 1. Key number EMU25221 Emission control information EMU25230 North American models 1.
General information ● EMISSION CONTROL INFORMATION ENGINE FAMILY : THIS ENGINE CONFORMS TO 2001 U.S. EPA REGULATIONS FOR MARINE SI ENGINES. REFER TO THE OWNERS MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. g/kW-hr FELs : IDLE SPEED : rpm IN NEUTRAL SPARK PLUG : SPARK PLUG GAP (mm) : DISPLACEMENT : cm 3 FUEL : GASOLINE ADVERTISED POWER : EX : N/A VALVE LASH (mm) : IN : N/A kW ● ZMU05230 EMU25262 Manufactured date label This label is attached to the clamp bracket or the swivel bracket.
General information ● ● ● ● ● ● ● ● ● ● ● 3 clude nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets. Check throttle, shift, and steering for proper operation before starting the engine. Attach the engine stop switch lanyard cord to a secure place on your clothing, or your arm or leg while operating. If you accidentally leave the helm, the cord will pull from the switch, stopping the engine.
General information ZMU03684 Several sets of rules prevail according to geographic location, but are all basically the same as the International Rules of the Road. The rules presented here in your Owner’s Manual are condensed, and have been provided for your convenience only. Consult your local U.S. Coast Guard Auxiliary or Department of Motor Vehicles for a complete set of rules governing the waters in which you will be using your boat.
General information “In obeying and construing these rules due regard shall be had to all dangers of navigation and collision, and to any special circumstances, which may render a departure from the above rules necessary in order to avoid immediate danger.” In other words, follow the standard rules except when a collision will occur unless both vessels try to avoid each other. If that is the case, both vessels become “Give-Way” vessels.
General information Overtaking If you are passing another vessel, you are the “Give-Way” vessel. This means that the other vessel is expected to maintain its course and speed. You must stay out of its way until you are clear of it. Likewise, if another vessel is passing you, you should maintain your speed and direction so that the other vessel can steer itself around you. EMU25530 Other special situations There are three other rules you should be aware of when driving your boat around other vessels.
General information ZMU01708 EMU25540 Fueling instructions EWM00010 WARNING GASOLINE AND ITS VAPORS ARE HIGHLY FLAMMABLE AND EXPLOSIVE! ● Do not smoke when refueling, and keep 7 ● ● ● away from sparks, flames, or other sources of ignition. Stop engine before refueling. Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat. Take care not to spill gasoline.
General information ● ● ● ● ● dry rags. Do not overfill the fuel tank. Tighten the filler cap securely after refueling. If you should swallow some gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention. If any gasoline spills onto your skin, immediately wash with soap and water. Change clothing if gasoline spills on it. Touch the fuel nozzle to the filler opening or funnel to help prevent electrostatic sparks.
General information that do not have a rectifier or Rectifier Regulator. If you wish to use a battery with the models without a rectifier or Rectifier Regulator, install an optional Rectifier Regulator. Using a maintenance-free battery with the above models can shorten the life of the battery significantly. Install an optional Rectifier Regulator or use accessories rated to withstand 18 volts or higher with the above models.
General information EMU25770 Start-in-gear protection Yamaha outboard motors or Yamaha-approved remote control units are equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is in neutral. Always select neutral before starting the engine.
Basic components EMU25797 Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all models. 25 1 2 3 4 5 19 1 2 3 6 8 7 9 18 17 16 9 20 11 10 15 14 21 12 13 ZMU04829 1. Manual starter handle* 2. Choke knob 3. Warning indicator 4. Starter button* 5. Gear shift lever* 6. Tiller handle* 7. Throttle friction adjuster* 8. Engine stop button/Engine stop lanyard switch* 9. Transom clamp handle 10. Tilt lock lever 11. Trim rod 12.
Basic components fuel tank, its function is as follows. EMU26180 Remote control EWM00020 WARNING The fuel tank supplied with this engine is its dedicated fuel reservoir and must not be used as a fuel storage container. Commercial users should conform to relevant licensing or approval authority regulations. 1 3 4 The remote control lever actuates both the shifter and the throttle. The electrical switches are mounted on the remote control box. 2 ZMU03157 1. Fuel joint 2. Fuel gauge 3.
Basic components 2. Forward “ ” 3. Reverse “ ” 4. Shift 5. Fully closed 6. Throttle 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral interlock trigger up. 1. Fully open 2. Fully closed EMU26221 Choke switch 1. Neutral interlock trigger To activate the choke system, press in the main switch while the key is turned to the “ ” (on) or “ ” (start) position. The choke system will then supply the rich fuel mixture required to start the engine.
Basic components ZMU02846 ZMU02848 EMU25961 EMU25922 Gear shift lever Throttle indicator Pulling the gear shift lever towards you puts the engine in forward gear so that the boat moves ahead. Pushing the lever away from you puts the engine in reverse gear so that the boat moves astern. The fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throttle position.
Basic components there is too much resistance, it could be difficult to move the remote control lever or throttle grip, which could result in an accident. power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. NOTE: The engine cannot be started with the lock plate removed. ZMU03688 When constant speed is desired, tighten the adjuster to maintain the desired throttle setting. EMU25990 Engine stop lanyard switch 1. Lanyard 2.
Basic components EMU26080 Starter button To start the engine with the electric starter, push the starter button. ZMU03690 EMU26011 Choke knob for pull type To supply the engine with the rich fuel mixture required to start, pull out this knob. ZMU04856 EMU26090 Main switch ZMU04127 EMU26070 Manual starter handle To start the engine, first gently pull the handle out until resistance is felt. From that position, then pull the handle straight out quickly to crank the engine.
Basic components EMU26122 Steering friction adjuster A friction device provides adjustable resistance to the steering mechanism, and can be set according to operator preference. An adjusting screw or bolt is located on the swivel bracket. If the boat tends to veer the left (port side), turn the trim tab rear end to the port side “A” in the figure. If the boat tends to veer the right (starboard side), turn the trim tab end to the starboard side “B” in the figure.
Basic components EMU26270 Shallow water lever Lifting this lever will tilt the motor up partially to provide more clearance when operating in shallow water. ZMU03699 EMU26372 Top cowling lock lever(s) (turn type) ZMU04111 EMU30530 Tilt lock mechanism The tilt lock mechanism is used to prevent the outboard motor from lifting out of the water when in reverse gear. To remove the engine top cowling, turn the lock lever(s) and lift off the cowling.
Basic components ZMU03703 If the warning system has activated, stop the engine and check the cooling water inlet for clogging. EMU26801 Warning system ECM00090 CAUTION: Do not continue to operate the engine if a warning device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU26816 Overheat warning This engine has an overheat warning device. If the engine temperature rises too high, the warning device will activate.
Operation EMU26901 Installation ECM00110 CAUTION: Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder transducers) can create airborne water spray while the boat is cruising. Severe engine damage may result if the motor is operated continuously in the presence of airborne water spray. NOTE: During water testing check the buoyancy of the boat, at rest, with its maximum load.
Operation motor greatly affects the water resistance. If the mounting height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the engine to overheat. If the mounting height is too low, the water resistance will increase and thereby reduce engine efficiency. Mount the outboard motor so that the anti-cavitation plate is between the bottom of the boat and a level 25 mm (1 in.) below it. 0–25mm (0–1in.
Operation board (if packed). For details, consult your Yamaha dealer. EWM00650 EMU27050 Gasoline and engine oil mixing chart (25:1) WARNING Avoid using bolts, nuts or washers other than those contained in the engine packaging. If used, they must be of at least the same quality of material and strength and must be tightened securely. After tightening, test run the engine and check their tightness. 1. : Gasoline 2.
Operation cool. Remaining seven hours: Run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time. After the first 10 hours: Operate the engine normally. Use the standard premix ratio of gasoline and oil. For details on mixing fuel and oil, see page 23. 4. 5. your trip.
Operation EMU27404 Gasoline and oil mixing (100:1) Gasoline to engine oil ratio Break-in period After break-in ZMU03012 See page 22 100:1 If equipped with a portable fuel tank 1. Pour oil into the portable fuel tank, and then add gasoline. EMU27270 Ring Free Fuel Additive Gasoline is a precise blend of many different substances, each chosen to give certain characteristics. Gasoline blends have been changing in recent years in response to concerns about pollution and resulting emissions regulations.
Operation 2. Replace the fuel can cap and close tightly. Shake the fuel can to mix the fuel thoroughly. Make sure that the oil and gasoline are mixed. Pour the gasoline and oil mixture into the built-in fuel tank. 3. 4. 5. ● ECM00810 CAUTION: ● ● ● ● Avoid using any oil other than the specified type. Use a thoroughly blended fuel-oil mixture. If the mixture is not thoroughly mixed, or if the mixing ratio is incorrect, the following problems could occur.
Operation N ZMU03714 ZMU02024 3. If a steering friction adjuster is provided on your outboard motor, securely attach the fuel line to the fuel line clamp. NOTE: During engine operation place the tank horizontally, otherwise fuel cannot be drawn from the fuel tank. 4. NOTE: The start-in-gear protection device prevents the engine from starting except when in neutral. 2. Squeeze the primer pump with the outlet end up until you feel it become firm.
Operation the engine will run poorly or stall. 5. Pull the manual starter handle slowly until you feel resistance. Then give a strong pull straight out to crank and start the engine. Repeat if necessary. 6. After the engine starts, slowly return the manual starter handle to its original position before releasing it. Slowly return the throttle grip to the fully closed position. ZMU03744 3. Place the throttle grip in the “ (start) position. ” 7. ZMU02954 4. Pull out / turn the choke knob fully.
Operation amount and try to start the engine again. If the engine still fails to start, see page 59. EMU27562 Electric start models 1. Place the gear shift lever in neutral. N ZMU03744 3. ZMU03714 Place the throttle grip in the “ ” (start) position. After the engine starts, return the throttle to the fully closed position. NOTE: The start-in-gear protection device prevents the engine from starting except when in neutral. 2.
Operation ● If the choke knob is left in the “ ” (start) position while the engine is running, the engine will run poorly or stall. 5. Push the starter button to start the motor. (Repeat if necessary.) ZMU02962 NOTE: ● ZMU04856 6. ● Immediately after the engine starts, release the starter button to allow it to return to its original position. Slowly return the throttle grip to the fully closed position so that the engine does not stall. 7. When the engine is cold, it needs to be warmed up.
Operation a secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the engine stop switch. N EWM00120 WARNING ● ● ● Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg while operating. Do not attach the lanyard to clothing that could tear loose. Do not route the lanyard where it could become entangled, preventing it from functioning. Avoid accidentally pulling the lanyard during normal operation.
Operation the engine from starting except when in neutral. 2. Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg. Then install the lock plate on the other end of the lanyard into the engine stop switch. EWM00120 WARNING ZMU03008 ● 6. After the engine starts, slowly return the manual starter handle to its original position before releasing it. ● NOTE: ● ● When the engine is cold, it needs to be warmed up. For further information, see page 33.
Operation pressed in. ON OFF OFF ON START ZMU01880 ZMU02315 4. Open the throttle slightly without shifting using the neutral throttle lever or free accelerator. You may need to change the throttle opening slightly depending on engine temperature. After the engine starts, return the throttle to the original position. NOTE: ● ● 6. N It is not necessary to use the choke when starting a warm engine. Push in the main switch fully, or the remote choke system will not operate.
Operation possible 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 “ ” (on), wait 10 seconds, then crank the engine again. EMU27670 Warming up engine Choke start models 2. After starting the engine, allow it to idle for 3 minutes to warm up. Failure to do so will shorten engine life. Gradually return the choke knob to its home position as the engine warms up.
Operation N F ZMU03718 Remote control models 1. Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to forward. ZMU02030 2. On models equipped with a tilt lock lever, check that it is in the lock/down position. ZMU03719 3. Move the gear shift lever quickly and firmly from neutral to reverse. EMU27796 Reverse (manual tilt and hydro tilt models) R N EWM00190 WARNING When operating in reverse, go slowly.
Operation ZMU03690 ZMU03721 2. Pull up the neutral interlock trigger (if equipped) and move the remote control lever quickly and firmly from neutral to reverse. 2. After stopping the engine, disconnect the fuel line if there is a fuel joint on the outboard motor. EMU27820 Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stopping the engine immediately after operating at high speed is not recommended. EMU27844 Procedure 1.
Operation ZMU02041 4. Remove the key if the boat will be left unattended. NOTE: The engine can also be stopped by pulling the lanyard and removing the lock plate from the engine stop switch, then turning the main switch to “ ” (off). 1 EMU27861 ZMU02858 Trimming outboard motor 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 improve performance and fuel economy while reducing strain on the engine.
Operation the boat is up about 3 to 5 degrees. With the bow up, the boat may have a greater tendency to steer to one side or the other. Compensate for this as you steer. The trim tab can also be adjusted to help offset this effect. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane. 1 ZMU02909 1. Trim rod 3. Reposition the rod in the desired hole. To raise the bow (“trim-out”), move the rod away from the transom.
Operation and making it hard to increase 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. the engine will be tilted for more than a few minutes. Otherwise fuel may leak. ECM00241 CAUTION: ● ● Before tilting the outboard motor, stop the engine by following the procedure on page 35.
Operation ZMU03747 ZMU03725 3. Place the tilt lock lever in the release position. ZMU03731 ZMU03726 4. Hold the rear of the top cowling with one hand, tilt the engine up, and turn the tilt support lever to the lock position and support the engine. EMU28022 Procedure for tilting down (manual tilt models) 1. Place the tilt lock lever in the release/ down position or return the shallow water lever to its original position. 2. 3.
Operation ● ● ● the water, resulting in loss of control. Do not rotate the outboard motor 180° and operate the boat in reverse. Place the gear shift in reverse to operate the boat in reverse. Use extra care when operating in reverse. Too much reverse thrust can cause the outboard motor to lift out of the water, increasing the chance of accident and personal injury. Return the outboard motor to its normal position as soon as the boat is back in deeper water.
Operation ZMU03728 4. Slightly tilt the outboard motor up. The tilt support bar will lock automatically, supporting the outboard motor in a partially raised position. NOTE: This outboard motor has 2 positions for shallow water cruising. 5. To return the outboard motor to the normal running position, place the tilt lock lever and shallow water lever to the lock position. ZMU03731 6. 7. Slightly tilt the outboard motor up until the tilt support bar automatically returns to the free position.
Maintenance EMU31480 Specifications NOTE: “(AL)” stated in the specification data below represents the numerical value for the aluminum propeller installed. Likewise, “(SUS)” represents the value for stainless steel propeller installed and “(PL)” for plastic propeller installed. EMU28218 Dimension: Overall length: 25EH 936 mm (36.9 in) 25ER 615 mm (24.2 in) 25MH 936 mm (36.9 in) Overall width: 25EH 358 mm (14.1 in) 25ER 304 mm (12.0 in) 25MH 358 mm (14.1 in) Overall height S: 1068 mm (42.
Maintenance Gear positions: Forward-neutral-reverse Gear ratio: 2.08 (27/13) Trim and tilt system: Manual tilt Propeller mark: F Fuel and oil: Recommended fuel: Regular unleaded gasoline Min. pump octane: 86 Fuel tank capacity: 25 L (6.60 US gal) (5.50 Imp.gal) Recommended engine oil: YAMALUBE 2-stroke outboard motor oil Fuel:oil ratio: Regular gasoline: 100 :1 Lubrication: Pre-mixed fuel and oil Recommended gear oil: Hypoid gear oil SAE#90 Gear oil quantity: 370.0 cm3 (12.51 US oz) (13.05 Imp.
Maintenance lowing procedures. ECM01411 CAUTION: ● ZMU02870 ● EMU28235 Clamp screw mounting models When transporting or storing the outboard motor while removed from a boat, keep the outboard motor in the attitude shown. Do not place the outboard motor on its side before the cooling water has drained from it completely, otherwise water may enter the cylinder through the exhaust port and cause engine trouble. Store the outboard motor in a dry, wellventilated place, not in direct sunlight.
Maintenance ● 1 2 ZMU02051 1. Water surface 2. Lowest water level 5. Fill the tank with fresh water to above the level of the anti-cavitation plate. ECM00300 CAUTION: Do not run the engine without supplying it with cooling water. Either the engine water pump will be damaged or the engine will be damaged from overheating. Before starting the engine, be sure to supply water to the cooling water passages. 7. Run the engine at a fast idle for 10–15 minutes in neutral position. 8.
Maintenance 2. 3. Spray the outboard motor exterior with “Yamaha Silicone Protectant” (Part No. LUB-SILCNE-13-00). Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax” (Part No. ACC-11000-15-02). EMU28430 Battery care EWM00330 WARNING Battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poisonous and highly caustic. Always follow these preventive measures: ● Avoid bodily contact with electrolytic fluid as it can cause severe burns or permanent eye injury.
Maintenance ing paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. A touch-up paint is available from your Yamaha dealer. EMU28486 Periodic maintenance EWM01070 WARNING Be sure to turn off the engine when you perform maintenance unless otherwise specified. If you or the owner is not familiar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic.
Maintenance EMU28522 Maintenance chart Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines. Refer to the sections in this chapter for explanations of each owner-specific action. NOTE: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. The “ The “ ” symbol indicates the check-ups which you may carry out yourself.
Maintenance Initial Item Spark plug(s) Actions 10 hours (1 month) 50 hours (3 months) Every 100 hours (6 months) 200 hours (1 year) Cleaning / adjustment / replacement EMU28931 Greasing Yamaha marine grease (Water resistant grease) 25 ZMU03734 49
Maintenance EMU28952 Cleaning and adjusting spark plug EWM00560 WARNING When removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion or fire. The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine.
Maintenance sources of ignition. ● EWM00910 WARNING Leaking fuel can result in fire or explosion. ● Check for fuel leakage regularly. ● If any fuel leakage is found, the fuel system must be repaired by a qualified mechanic. Improper repairs can make the outboard unsafe to operate. Check the fuel lines for leaks, crack, or malfunction. If a problem is found, your Yamaha dealer or other qualified mechanic should repair it immediately. ● ● cool. There will be fuel in the fuel filter.
Maintenance 2 3 4 on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water. 1. Start the engine and allow it to warm up fully in neutral until it is running smoothly. NOTE: 1 ZMU02079 1. Filter cup 2. Filter element 3. Filter housing 4. O-ring 4. 5. 6. Reinstall the filter element in the cup. Make sure the O-ring is in position in the cup. Firmly screw the cup onto the filter housing.
Maintenance leaks from the joints between the exhaust cover, cylinder head, and body cylinder. EMU29171 Checking propeller EWM00321 WARNING You could be seriously injured if the engine accidentally starts when you are near the propeller. ● Before inspecting, removing, or installing the propeller, remove the spark plug caps from the spark plugs. Also, place the shift control in neutral, turn the main switch to “ ” (off) and remove the key, and remove the lanyard from the engine stop switch.
Maintenance EMU30660 Removing the propeller EMU29194 Spline models 1. Straighten the cotter pin and pull it out using a pair of pliers. 2. Remove the propeller nut, washer, and spacer (if equipped). 6 3 3. 4. 1 4 2. rosion resistant grease to the propeller shaft. Install the spacer (if equipped), thrust washer, and propeller on the propeller shaft. Install the spacer (if equipped) and the washer. Tighten the propeller nut to the specified torque.
Maintenance oil drain screw is at the lowest point possible. Place a suitable container under the gear case. Remove the gear oil drain screw and gasket. 2. 3. ized filling device, inject the gear oil into the gear oil drain screw hole. Recommended gear oil: Hypoid gear oil SAE#90 Gear oil quantity: 370.0 cm3 (12.51 US oz) (13.05 Imp.oz) 2 1 ZMU03738 1. Gear oil drain screw 2.
Maintenance ● ● ● 1. 2. 3. an area with good ventilation. Wipe up any spilled fuel immediately. Reassemble the fuel tank carefully. Improper assembly can result in a fuel leak, which could result in a fire or explosion hazard. Dispose of old gasoline according to local regulations. Empty the fuel tank into an approved container. Pour a small amount of suitable solvent into the tank. Install the cap and shake the tank. Drain the solvent completely. Remove the screws holding the fuel joint assembly.
Maintenance and get immediate medical attention. Antidote (INTERNAL): ● Drink large quantities of water or milk followed by milk of magnesia, beaten egg, or vegetable oil. Get immediate medical attention. Batteries also generate explosive hydrogen gas; therefore, you should always follow these preventive measures: ● Charge batteries in a well-ventilated area. ● Keep batteries away from fire, sparks, or open flames (for example: welding equipment, lighted cigarettes, and so on.
Maintenance ● when installing the battery and disconnect the black battery cable first when removing it. Otherwise, the electrical parts can be damaged. The electrical contacts of the battery and cables must be clean and properly connected, or the battery will not start the engine. Connect the red battery cable to the POSITIVE (+) terminal first. Then connect the black battery cable to the NEGATIVE (-) terminal. ZMU04677 EMU29400 Coating the boat bottom A clean hull improves boat performance.
Trouble Recovery EMU29424 Troubleshooting A problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. This section describes basic checks and possible remedies, and covers all Yamaha outboard motors. Therefore some items may not apply to your model. If your outboard motor requires repair, bring it to your Yamaha dealer. If the engine trouble warning indicator is flashing, consult your Yamaha dealer. Starter will not operate. Q.
Trouble Recovery Q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system. Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have serviced by a Yamaha dealer. Q. Has warning system activated? A. Find and correct cause of warning. Q. Is spark plug gap incorrect? A. Inspect and adjust as specified. Q. Is ignition wiring damaged or poorly connected? A.
Trouble Recovery A. Have serviced by a Yamaha dealer. Q. Is load on boat improperly distributed? A. Distribute load to place boat on an even plane. Q. Are weeds or other foreign matter tangled on gear housing? A. Remove foreign matter and clean lower unit. Q. Is water pump or thermostat faulty? A. Have serviced by a Yamaha dealer. Q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system. Q. Is there excess water in fuel filter cup? A. Drain filter cup.
Trouble Recovery Q. Is fuel joint connection incorrect? A. Connect correctly. Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with recommended type. damaged by a collision while operating or trailering. Damage could make the outboard motor unsafe to operate. If the outboard motor hits an object in the water, follow the procedure below. Q. Is high pressure fuel pump drive belt broken? A. Have serviced by a Yamaha dealer. Q.
Trouble Recovery ● ● ● 1 2 ZMU04839 ● 1. Fuse holder 2. Fuse (10 A) NOTE: ● Consult your Yamaha dealer if the new fuse immediately blows again. EMU29532 Starter will not operate If the starter mechanism does not operate (the engine cannot be cranked with the starter), the engine can be started with an emergency starter rope. ● EWM01021 WARNING ● ● Use this procedure only in an emergency to return to the nearest port for repairs.
Trouble Recovery 1 ZMU03740 ZMU02334 1. Start-in-gear protection cable 3. Remove the starter/flywheel cover after removing the bolt(s). OFF ON START ZMU01906 5. ZMU03741 4. Prepare the engine for starting. For further information, see page 26. Be sure the engine is in neutral and that the engine stop switch lanyard lock plate is attached to the engine stop switch. The main switch must be “ ” (on), if equipped. If equipped the choke knob, pull out it when the engine is cold.
Trouble Recovery and start the engine. Repeat if necessary. ZMU01910 ZMU02928 EMU29760 Treatment of submerged motor 3. 4. If the outboard motor is submerged, immediately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediately. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the procedure below in order to minimize engine damage. Drain the fuel from the carburetor, fuel filter, and fuel line.
Consumer information EMU29811 Important warranty information for U.S.A.
Consumer information 67
Consumer information EMU29820 YAMAHA MOTOR CORPORATION, U.S.A.
Consumer information 69
Consumer information 70
Consumer information EMU29841 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA 71
63B-9-1F Hyoshi 06.2.
6L2-9-1R Hyoshi 06.2.9 3:52 PM ページ 4 Printed in Japan April 2006–0.
Warranty card-04 2/17/03 2:41 PM Page 1 OUTBOARD MOTOR WARRANTY REGISTRATION ENREGISTREMENT DE LA GARANTIE DU MOTEUR HORS-BORD Please complete and mail this card. This information is necessary to accurately register your unit for warranty. Veuillez signer ci-dessous pour attester que le montage et l’inspection ont été faits dans le respect des directives d’inspection et que la marche à suivre pour la garantie et l’entretien a été expliquée à l’acheteur au détail.
Warranty card-04 2/17/03 2:41 PM Page 2 PLACE POSTAGE HERE ATTN: WARRANTY DEPARTMENT
