63B-9-1C Hyoushi 3/29/04 11:44 PM Page 1 40D 50D OWNER’S MANUAL Printed in Japan April 2004–0.9 × 1 ! Printed on recycled paper U.S.A.
63B-9-1C Hyoushi 3/29/04 11:44 PM Page 2 EMU25060 ZMU01690 Read this owner’s manual carefully before operating your outboard motor.
✼✩✦✯✤✰ ✤ Important manual information EMU25100 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 ..................................
✼✩✦✯✤✰ ✥ Table of contents and power trim and tilt models)..... 30 Stopping engine ............................ 31 Procedure ....................................... 31 Trimming outboard motor.............. 31 Adjusting trim angle ........................ 32 Adjusting boat trim .......................... 33 Tilting up and down ....................... 33 Procedure for tilting up .................... 34 Procedure for tilting down ............... 35 Cruising in shallow water ........
✼✩✦✯✤✰ ✤ General information EMU25170 Identification numbers record reference in case you need a new key. EMU25182 Outboard motor serial number The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket or the upper part of the swivel 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.
✼✩✦✯✤✰ ✥ 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.
✼✩✦✯✤✰ ✦ General information er 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. ● Know the marine laws and regulations where you will be boating—and obey them. For basic boating rules, see “Rules of the road” on page 3. ● Stay informed about the weather.
✼✩✦✯✤✰ ✧ General information cies. You should be aware of these rules, and follow them whenever you encounter another vessel on the water. 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.
✼✩✦✯✤✰ General information Meeting If you are meeting another power vessel head on, and are close enough to run the risk of collision, neither of you has the right-ofway! Both of you should alter course to avoid an accident. You should keep the other vessel on your port (left) side. This rule doesn’t apply if both of you will clear one another if you continue on your set course and speed. Overtaking If you are passing another vessel, you are the “Give-Way” vessel.
✼✩✦✯✤✰ ✩ General information or trawls are considered to be “fishing vessels” under the International Rules. Vessels with trolling lines are not considered fishing vessels. Fishing vessels have the right-ofway regardless of position. Fishing vessels cannot, however, impede the passage of other vessels in narrow channels. Sailing vessel right-of-way Sailing vessels should normally be given the right-of-way. The exceptions to this are: 1.
✼✩✦✯✤✰ ✪ 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 speed is too high or too low for good engine performance, this will have an adverse effect on the engine. Yamaha outboard motors are fitted with propellers chosen to perform well over a range of applications, but there may be uses where a propeller with a different pitch would be more appropriate. For a greater operating load, a smaller-pitch propeller is more suitable as it enables the correct engine speed to be maintained.
✼✩✦✯✤✰ ✤✣ Basic components EMU25795 Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all models. 40D, 50D 12 1 2 13 14 YAMAHA SPEED Km/h knot mph km mile TRIP TIME set BATT mode 3 11 15 16 4 10 5 9 8 5 17 6 7 ZMU05011 1. Battery cable 2. Anode(s) 3. Propeller* 4. Cooling water inlet 5. Trim tab (anode) 6. Anti-cavitation plate 7. Trim rod 8. Clamp bracket 9. Tilt support lever 10. Top cowling 11.
✼✩✦✯✤✰ ✤✤ Basic components tions. 1 3 4 2 ZMU03157 1. Fuel joint 2. Fuel gauge 3. Fuel tank cap 4. Air vent screw EMU25830 1. Power trim and tilt switch 2. Remote control lever 3. Neutral interlock trigger 4. Neutral throttle lever 5. Main switch / choke switch 6. Engine stop lanyard switch 7. Throttle friction adjuster Fuel joint EMU26190 This joint is used to connect the fuel line.
✼✩✦✯✤✰ ✤✥ Basic components 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 EMU25970 Throttle friction adjuster 1. Neutral interlock trigger EMU26211 Neutral throttle lever To open the throttle without shifting into either forward or reverse, put the remote control lever in the neutral position and lift the neutral throttle lever.
✼✩✦✯✤✰ ✤✦ Basic components EMU25990 Engine stop lanyard switch The lock plate must be attached to the engine stop switch for the engine to run. The lanyard should be attached to a secure place on the operator’s clothing, or arm or leg. Should the operator fall overboard or leave the helm, the lanyard will pull out the lock plate, stopping ignition to the engine. This will prevent the boat from running away under power.
✼✩✦✯✤✰ ✤✧ Basic components EMU26141 Power trim and tilt switch on remote control or tiller handle The power trim and tilt system adjusts the outboard motor angle in relation to the transom. Pressing the switch “ ” (up) trims the outboard motor up, then tilts it up. Pressing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position.
✼✩✦✯✤✰ ✤ Basic components protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode. A ZMU03194 1 2 EMU26372 B Top cowling lock lever(s) (turn type) ZMU03097 1. Trim tab 2. Bolt EMU26261 Trim rod (tilt pin) To remove the engine top cowling, turn the lock lever(s) and lift off the cowling. When installing the cowling, check to be sure it fits properly in the rubber seal.
✼✩✦✯✤✰ ✤✩ Basic components EMU26470 Tachometer This gauge shows the engine speed and has the following functions. 7. Engine trouble warning indicator 8. Set button 9. Mode button NOTE: 1 The water separator and engine trouble warning indicators only operate when the engine is equipped with the appropriate functions. EMU26540 2 ZMU04577 1. Tachometer 2. Oil level indicator Oil level indicators (three indicators 2) The indicators on the gauge show the status of the oil level.
✼✩✦✯✤✰ ✤✪ Basic components rious engine damage will occur. ZMU04581 1 ZMU01867 1. Oil level indicator EMU26581 Overheat warning indicator (digital type) If the engine temperature rises too high, the warning indicator will start to blink. For further information on reading the indicator, see page 18. ECM00050 NOTE: Memorize the trim angles that work best for your boat under different conditions. Adjust the trim angle to the desired setting with the power trim and tilt switch.
✼✩✦✯✤✰ ✤✫ Basic components engine has been run. It can be set to show the total number of hours or the number of hours for the current trip. The display can also be turned on and off. Activation of warning device ● The engine speed will automatically decrease to about 2000 r/min.
✼✩✦✯✤✰ ✤✬ Basic components clogging. ZMU03363 ZMU03026 EMU26843 Oil level warning and oil filter clogging warning Oil injection models This engine has an oil level warning system. If the oil level falls below the lower limit, the warning system will activate. Activation of warning device ● Engine speed will automatically decrease to about 2000 r/min. ZMU03942 ● The buzzer will sound. ZMU04586 ● The oil level warning indicator will light.
✼✩✦✯✤✰ ✥✣ Basic components 1 ZMU03366 1.
✼✩✦✯✤✰ ✥✤ 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.
✼✩✦✯✤✰ ✥✥ 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 in alignment with the bottom of the boat.
✼✩✦✯✤✰ ✥✦ Operation board (if packed). For details, consult your Yamaha dealer. EWM00650 EMU27060 Gasoline and engine oil mixing chart (50:1) 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 4. 5. cool. Third through tenth hours: Avoid operating at full throttle for more than 5 minutes at a time. Let the engine cool between full-throttle runs. Vary engine speed occasionally. After the first 10 hours: Operate the engine normally. Use only straight gasoline in the fuel tank. The Yamaha oil injection system provides proper lubrication for normal operation.
✼✩✦✯✤✰ ✥ Operation ZMU03012 ZMU03367 ECM00130 EMU27270 CAUTION: Ring Free Fuel Additive Be sure to take the above steps when operating the engine after a long period of storage. Otherwise engine seizure could occur. 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 EMU27311 Filling oil for electric start models EWM00530 WARNING Do not add gasoline into the oil tank. Fire or explosion could result. This engine uses the Yamaha oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operating conditions. No fuel premixing is needed. Simply pour gasoline into the fuel tank and oil into the oil tank. Convenient indicator segments indicate the status of the oil supply.
✼✩✦✯✤✰ ✥✪ Operation EMU27321 Oil level indicator operation The various functions of the oil level system are as follows: EMU27350 Electric start models Oil level warning indicator (analog tachometer/ bottom cowling) Oil level warning indicator (digital tachometer) Engine oil tank Green Remarks more than 450 cm3 (0.48 US qt, 0.40 Imp qt) Yellow from 450 cm3 (0.48 US qt, 0.40 Imp qt) down to No refilling necessary. Add oil; see page 26. 200 cm3 (0.21 US qt, 0.
✼✩✦✯✤✰ ✥✫ Operation from the fuel tank. 4. Squeeze the primer pump with the outlet end up until you feel it become firm. ZMU02295 2. If there is a fuel joint on the motor, firmly connect the fuel line to the joint. Then firmly connect the other end of the fuel line to the joint on the fuel tank. ZMU02025 EMU27490 Starting engine EMU27662 Electric start and remote control models 1. Place the remote control lever in neutral.
✼✩✦✯✤✰ ✥✬ Operation ● ● 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. Loss of engine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly.
✼✩✦✯✤✰ ✦✣ Operation running, overheating and serious damage could occur. 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. equipped) and move the remote control lever quickly and firmly from neutral to forward.
✼✩✦✯✤✰ ✦✤ Operation ZMU03108 EMU27820 Stopping engine 3. Tighten the air vent screw on the fuel tank cap (if equipped). 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. Push and hold the engine stop button or turn the main switch to “ ” (off). ZMU02301 4. Remove the key if the boat will be left unattended.
✼✩✦✯✤✰ ✦✥ Operation the boat, sea conditions, and running speed. EWM00740 ● WARNING Excessive trim for the operating conditions (either trim up or trim down) can cause boat instability and can make steering the boat more difficult. This increases the possibility of an accident. If the boat begins to feel unstable or is hard to steer, slow down and/or readjust the trim angle. ● clamp bracket. Use caution when trying a trim position for the first time.
✼✩✦✯✤✰ ✦✦ Operation your boat and operating conditions. NOTE: To adjust the trim angle while the boat is moving, use the power trim and tilt switch located on the remote control device or tiller handle, if equipped. EMU27911 Adjusting boat trim When the boat is on plane, a bow-up attitude results in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees.
✼✩✦✯✤✰ ✦✧ Operation salt corrosion. 2. EWM00220 Disconnect the fuel line from the outboard motor or close the fuel cock. WARNING Be sure all people are clear of the outboard motor when tilting up and down, also be careful not to pinch any body parts between the drive unit and engine bracket. EWM00250 WARNING Leaking fuel is a fire hazard.
✼✩✦✯✤✰ ✦ Operation ZMU02569 ZMU03115 EWM00260 WARNING After tilting the outboard motor, be sure to support it with the tilt support knob or tilt support lever. Otherwise the outboard motor could fall back down suddenly if oil in the power trim and tilt unit loses pressure. 5. 3. Push the power tilt / power trim and tilt switch “ ” (down) to lower the outboard motor to the desired position.
✼✩✦✯✤✰ ✦✩ Operation to allow operation in shallow water. EWM00660 WARNING ● ● UP Place the gear shift in neutral before setting up for shallow water cruising. Return the outboard motor to its normal position as soon as the boat is back in deeper water. UP DN ECM00260 ZMU01935 CAUTION: Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when setting up for and cruising in shallow water.
✼✩✦✯✤✰ ✦✪ Maintenance EMU28216 Specifications Dimension: Overall length: 40TR 646 mm (25.4 in) 50TR 670 mm (26.4 in) Overall width: 40TR 350 mm (13.8 in) 50TR 360 mm (14.2 in) Overall height L: 1319 mm (51.9 in) Transom height L: 533 mm (21.0 in) Weight (without propeller) L: 86.0 kg (190 lb) Performance: Full throttle operating range: 4500–5500 r/min Maximum output: 40TR 29.4 kW@5000 r/min (40 HP@5000 r/min) 50TR 36.
✼✩✦✯✤✰ ✦✫ Maintenance Tightening torque for engine: Spark plug: 25.0 Nm (18.4 ft-lb) (2.55 kgf-m) Propeller nut: 35.0 Nm (25.8 ft-lb) (3.57 kgf-m) then trailer the outboard motor in the tilt position using a motor support device such as a transom saver bar. Consult your Yamaha dealer for further details. EMU28222 Transporting and storing outboard motor EWM00690 WARNING ● ● ● Leaking fuel is a fire hazard.
✼✩✦✯✤✰ ✦✬ Maintenance with a minimum of tools, can perform the following procedures. ECM01411 1 CAUTION: ● ● 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. 2 ZMU02051 1. Water surface 2. Lowest water level EMU28301 Procedure 5.
✼✩✦✯✤✰ ✧✣ Maintenance ● when starting or during operation. Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running. Run the engine at a fast idle for 10–15 minutes in neutral position. 8. Just prior to turning off the engine, quickly spray “Yamaha Stor-Rite Engine Fogging Oil” (Part No. LUB-STRRT-1200) alternately into each carburetor or the fogging hole of the silencer cover, if equipped.
✼✩✦✯✤✰ ✧✤ Maintenance equipment, lighted cigarettes, and so on.) ● DO NOT SMOKE when charging or handling batteries. KEEP BATTERIES AND ELECTROLYTIC FLUID OUT OF REACH OF CHILDREN. Batteries vary among manufacturers. Therefore the following procedures may not always apply. Consult your battery manufacturer’s instructions. Procedure 1. Disconnect and remove the battery from the boat. Always disconnect the black negative cable first to prevent the risk of shorting. 2.
✼✩✦✯✤✰ ✧✥ Maintenance EMU28521 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. The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer.
✼✩✦✯✤✰ ✧✦ 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 NOTE: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.
✼✩✦✯✤✰ ✧✧ Maintenance EMU28931 Greasing Yamaha marine grease (Water resistant grease) 40D, 50D ZMU03414 EMU28951 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.
✼✩✦✯✤✰ ✧ Maintenance Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If electrode erosion becomes excessive, or if carbon and other deposits are excessive, you should replace the spark plug with another of the correct type.
✼✩✦✯✤✰ ✧✩ Maintenance ● spilled fuel immediately. 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. EMU29001 Cleaning fuel filter 1. Remove the nut holding the fuel filter assembly if equipped.
✼✩✦✯✤✰ ✧✪ Maintenance which could result in an accident. ECM00490 CAUTION: 2 3 4 1 ZMU02079 1. Filter cup 2. Filter element 3. Filter housing 4. O-ring 4. 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. Attach the filter assembly to the bracket so that the fuel hoses are attached to the filter assembly. Run the engine and check the filter and lines for leaks. 5. 6.
✼✩✦✯✤✰ ✧✫ Maintenance EMU29161 Checking power trim and tilt system EWM00430 WARNING ● 2 1 ● ZMU04989 1. 1. Drain hose 2. Filler neck side 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. Make sure no one is under the outboard motor before performing this test. Check the power trim and tilt unit for any sign of oil leaks.
✼✩✦✯✤✰ ✧✬ Maintenance is abnormal. 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 EMU29193 Removing the propeller 1. 2. Straighten the cotter pin and pull it out using a pair of pliers. Remove the propeller nut, washer, and spacer (if equipped). 3. 4. 1 43 6 washer, and propeller on the propeller shaft. Install the spacer (if equipped) and the washer. Tighten the propeller nut to the specified torque. Align the propeller nut with the propeller shaft hole. Insert a new cotter pin in the hole and bend the cotter pin ends.
✼✩✦✯✤✰ ✤ Maintenance 3. the gear oil drain screw hole. gear case. Remove the gear oil drain screw. Recommended gear oil: Hypoid gear oil SAE#90 Gear oil quantity: 430.0 cm3 (14.54 US oz) (15.17 Imp.oz) 2 1 ZMU03133 1. Gear oil drain screw 2. Oil level plug NOTE: If the magnetic gear oil drain screw equipped: remove all metal particles from the screw before installing it. 4. Remove the oil level plug to allow the oil to drain completely.
✼✩✦✯✤✰ ✥ Maintenance ● 1. 2. 3. plosion 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. Pull the assembly out of the tank. NOTE: Inspect ground leads attached to external anodes on equipped models.
✼✩✦✯✤✰ ✦ Maintenance EMU29320 Checking battery (for electric start models) ● 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. ● Wear protective eye gear when handling or working near batteries. Antidote (EXTERNAL): ● SKIN - Flush with water.
✼✩✦✯✤✰ ✧ Maintenance tion in the boat. Install a fully charged battery in the holder. ECM01121 CAUTION: ● ● ● ● Make sure the main switch (on applicable models) is “ ” (off) before working on the battery. Reversal of the battery cables will damage the electrical parts. Connect the red battery cable first when installing the battery and disconnect the black battery cable first when removing it. Otherwise, the electrical parts can be damaged.
✼✩✦✯✤✰ Trouble Recovery EMU29422 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.
✼✩✦✯✤✰ ✩ 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.
✼✩✦✯✤✰ ✪ 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.
✼✩✦✯✤✰ ✫ Trouble Recovery board motor unsafe to operate. Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with recommended type. 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. Is engine not responding properly to shift lever position? A. Have serviced by a Yamaha dealer. Engine vibrates excessively. Q. Is propeller damaged? A.
✼✩✦✯✤✰ ✬ Trouble Recovery EMU29531 Starter will not operate 1 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. 2 EWM01020 WARNING 3 ● ZMU03421 ● 1. Fuse holder 2. Fuse (20 A) 3. Spare fuse (20 A) NOTE: Consult your Yamaha dealer if the new fuse immediately blows again.
✼✩✦✯✤✰ ✩✣ Trouble Recovery ● starter mechanism or top cowling after the engine is running. Do not touch the ignition coil, spark plug wire, spark plug cap, or other electrical components when starting or operating the motor. You could get an electrical shock. EMU29573 Emergency starting engine 1. 2. ZMU03140 Remove the top cowling. Disconnect the start-in-gear protection cable from the starter, if equipped. ON OFF ZMU03541 ZMU03425 3. 5.
✼✩✦✯✤✰ ✩✤ Trouble Recovery NOTE: When the engine does not start with this procedure, see page 61. EMU29670 Engine fails to operate EMU29704 Cold engine fails to start If the engine fails to start when it is cold, use the following procedure. ZMU03142 EWM00410 WARNING 4. When starting or operating the engine, do not touch the ignition coil, spark plug wire, spark plug cap, or other electrical parts carrying high voltage.
✼✩✦✯✤✰ ✩✥ Trouble Recovery 6. Turn the main switch to “ ” (start). ECM00191 When the starter mechanism malfunctions, see page 59. CAUTION: ● ● NOTE: Never turn the main switch to “ ” (start) while the engine is running. Do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery will be quickly discharged, thus making it impossible to start the engine. The starter can also be damaged.
✼✩✦✯✤✰ ✩✦ Trouble Recovery 3. 4. Drain the fuel from the carburetor, fuel filter, and fuel line. Feed fogging oil or engine oil through the carburetor(s) and spark plug holes while cranking with the manual starter or emergency starter rope. ZMU01911 5. Take the outboard motor to a Yamaha dealer as soon as possible. ECM00400 CAUTION: Do not attempt to run the outboard motor until it has been completely inspected.
✼✩✦✯✤✰ ✩✧ Consumer information EMU29811 Important warranty information for U.S.A.
✼✩✦✯✤✰ ✩ Consumer information 65
✼✩✦✯✤✰ ✩✩ Consumer information EMU29820 YAMAHA MOTOR CORPORATION, U.S.A.
✼✩✦✯✤✰ ✩✪ Consumer information 67
✼✩✦✯✤✰ ✩✫ Consumer information 68
✼✩✦✯✤✰ ✩✬ Consumer information EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U.S.A.
63B-9-1C Hyoushi 3/29/04 11:44 PM Page 1 40D 50D OWNER’S MANUAL Printed in Japan April 2004–0.9 × 1 ! Printed on recycled paper U.S.A.
Warranty card 2/27/02 11:47 AM 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 2/27/02 11:47 AM Page 2 PLACE POSTAGE HERE ATTN: WARRANTY DEPARTMENT
