1. DL manuals
  2. Yamaha
  3. Outboard Motor
  4. 40B
  5. Owner's Manual

Yamaha 40B Owner's Manual

Summary of 40B

  • Page 1

    40b 50b owner’s manual u.S.A.Edition lit-18626-04-92 63b-9-1a hyoshi 4/12/02 3:31 pm page 1 (2,1).

  • Page 2

    63b-9-1a hyoshi 4/12/02 3:31 pm page 2 (1,1).

  • Page 3: To The Owner

    E thank you for choosing a yamaha out- board motor. This owner’s manual con- tains information needed for proper oper- ation, maintenance and care. A thorough understanding of these simple instruc- tions will help you obtain maximum enjoyment from your new yamaha. If you have any question about the ...

  • Page 4

    63b-9-1a-1 2/28/02 5:11 pm page 2.

  • Page 5: General Information

    General information basic components operation maintenance trouble recovery index ema20010 contents read this owner’s manual carefully before operating your outboard motor. 1 2 3 4 5 6 e 63b-9-1a-1 2/28/02 5:11 pm page 3.

  • Page 6

    63b-9-1a-1 2/28/02 5:11 pm page 4.

  • Page 7: Chapter 1

    E 2 3 4 5 6 emb00010 chapter 1 general information identification numbers record ....................................................1-1 outboard motor serial number...........1-1 key number...........................................1-1 emission control information...1-2 safety information.............

  • Page 8: Yamaha

    E 1-1 1 401012 904011 123 yamaha q emu00005 identification numbers record emu00007 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 num- ber in the spaces provided to assist you in ...

  • Page 9: Emission Control

    1-2 e 000909 q w emu01385 emission control information emu01386 north american models this engine conforms to u.S. Environ- mental protection agency (epa) regula- tions for marine si engines. See the label affixed to your engine for details. Approval label of emission control certificate this label ...

  • Page 10: Safety

    E 1-3 emu00917 safety information 8 before mounting or operating the out- board motor, read this entire manual. Reading it should give you an under- standing of the motor and its operation. 8 before operating the boat, read any owner’s or operator’s manuals supplied with it and all labels. Be sure y...

  • Page 11

    E 1-4 8 when a swimmer is in the water near you shift into neutral and shut off the engine. 8 be informed about boating safety. Addi- tional publications and information can be obtained from many organizations, including the following: united states coast guard consumer affairs staff (g-bc) office o...

  • Page 12: Important Labels

    E 1-5 emb30011 important labels warning labels 1 202016* q warning ●be sure shift control is in neutral before starting engine. (except 2hp) ●do not touch or remove electrical parts when starting or during operation. ●keep hands,hair,and clothes away from flywheel and other rotating parts while engi...

  • Page 13: Basic Boating Rules

    E 1-6 emb40010 basic boating rules (rules of the road) just as there are rules which apply when you are driving on streets and high ways, there are waterway rules which apply when you are driving your boat. These rules are used internationally, and are also enforced by the united states coast guard ...

  • Page 14

    E 1-7 rules when encountering vessels there are three main situations which you may encounter with other vessels which could lead to a collision unless the steer- ing rules are followed: meeting (you are approaching another vessel head-on) crossing (you are travelling across the other vessel’s path)...

  • Page 15

    E its course and speed. You must stay out of its way until you are clear of it. Like- wise, if another vessel is passing you, you should maintain your speed and direction so that the other vessel can steer itself around you. Other special situations there are three other rules you should be aware of...

  • Page 16

    E 1-9 1 1 a 1 1 proceeding toward head of navigation from seaward can buoy odd number. Leave to port. Or secondary channel buoys starts new numbering system old new c " 1" nun buoy even number. Leave to starboard n " 2" no change buoy color code black red green " a" " 2" " 1" " 3" " 4" " 5" " 7" n "...

  • Page 17: Fueling Instructions

    E 1-10 emu00016 fueling instructions w gasoline and its vapors are high- ly flammable and explosive! 8 do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. 8 stop engine before refueling. 8 refuel in a well-ventilated area. Refuel portable fuel tanks off the ...

  • Page 18

    Emu01804 gasoline if knocking or pinging occurs, use a differ- ent brand of gasoline or premium unlead- ed fuel. Emu00027 gasohol there are two types of gasohol: gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if ethanol content does not exceed 10% and...

  • Page 19: Battery Requirement

    Emu01775 battery requirement c c do not use a battery that does not meet the specified capacity. If a battery which does not meet specifications is used, the electric system could perform poorly or be overloaded, causing electric system damage. For electric start models, choose a battery which meets...

  • Page 20: Propeller Selection

    E 1-13 emu01395 propeller selection the performance of your outboard motor will be critically affected by your choice of propeller, as an incorrect choice could adversely affect performance and could also seriously damage the motor. Engine speed depends on the propeller size and boat load. If engine...

  • Page 21: Start-In-Gear Protection

    1-14 e 602011 10-3/4x17-g 1 23 emu01209 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 neutral. Always select neutral before starting the engin...

  • Page 22: -Memo-

    E -memo- 63b-9-1a-1 2/28/02 5:11 pm page 20

  • Page 23: Chapter 2

    E 1 2 3 4 5 6 emc00010 chapter 2 basic components main components..............................2-1 operations of controls and other functions ................................2-2 fuel tank ................................................2-2 remote control .....................................2-3 powe...

  • Page 24: Main Components

    E 2-1 !4 !5 !3 !2 !1 !0 o i t r w q y u e emu01206 main components 1 oil filler access cap 2 warning indicator lamp 3 clamp bracket 4 battery lead 5 anode 6 cooling water inlet 7 propeller 8 trim tab (anode) 9 anti-cavitation plate 0 anode q trim angle adjusting rod w tilt support lever e top cowlin...

  • Page 25: Operations of Controls

    E 2-2 emc20010 operations of controls and other functions emc21012 fuel tank if your model was equipped with a portable fuel tank, its function is as fol- lows. 1 fuel hose joint 2 fuel meter(if equipped) 3 fuel tank cap 4 air vent screw(if equipped) emc31010 fuel hose joint this connector is provid...

  • Page 26

    2-3 e emu00096* remote control both the shifter and the throttle are actu- ated by the remote control lever. Addi- tionally, the remote control also has the electrical switches. 1 remote control lever 2 neutral interlock trigger 3 neutral throttle lever 4 main switch 5 engine stop lanyard switch 6 p...

  • Page 27

    2-4 e emc50110 neutral interlock trigger to shift out of neutral, the neutral inter- lock trigger of the remote control lever must first be pulled up. Emc50210 neutral throttle lever to open the throttle without shifting into either forward or reverse, place the remote control lever in the neutral p...

  • Page 28

    2-5 e emu01331 power trim/tilt switch the power trim/tilt adjusts the motor angle in relation to the transom. The power trim/tilt switch is located on the remote control lever grip. Pushing the switch “up” trims the motor up, then tilts the motor up. Pressing the switch “dn” tilts the motor down and...

  • Page 29

    2-6 e emc28210 engine stop lanyard switch the lock-plate on the end of the lanyard 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 l...

  • Page 30

    2-7 302013* dn up emu01125 power trim/tilt switch the power trim/tilt adjusts the motor angle in relation to the transom. The power trim/tilt switch is located on the side of the bottom engine cowling. Push- ing the switch “up” trims the motor up, then tilts the motor up. Pressing the switch “dn” ti...

  • Page 31

    E 2-8 w use the power trim/tilt switch located on the bottom engine cowling only when the boat is at a complete stop with the engine off. Attempting to use the cowling-mounted power trim/tilt switch while the boat is moving could increase the risk of falling overboard and could distract the operator...

  • Page 32

    E 2-9 emu01614 digital tachometer this gauge contains the tachometer, trim meter, hour meter, oil level indicator, and the overheat warning indicator. 1 tachometer 2 trim meter 3 hour meter 4 oil level indicator 5 overheat warning indicator 6 set button 7 mode button note: all segments of the displa...

  • Page 33

    E 2-10 emu01109 trim meter this meter shows the trim angle of your outboard motor. Note: 8 memorize the trim angles that work best for your boat under different condi- tions. Adjust the trim angle to the desired setting by operating the power trim and tilt switch. 8 if the trim angle of your motor e...

  • Page 34

    E 2-11 001051 q 001052 q emu01553 overheat warning indicator if the engine temperature rises too high, the warning indicator will start to blink. Refer to “overheat warning” for details. 1 overheat warning indicator c c do not continue to operate the engine if a warning device has activated. If nece...

  • Page 35

    E 2-12 emd04011* trim tab the trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force. W an improperly adjusted trim tab may cause difficult steering. Always test run after the trim tab has been installed or replaced to ...

  • Page 36

    E 2-13 301013* q emd60010 tilt support lever power trim & tilt/hydro tilt model to keep the outboard motor in the tilted- up position, lock the tilt support lever to the clamp bracket. 403011 emd62011 top cowling lock lever to remove the engine top cowling, turn the lock lever. Then lift off the cow...

  • Page 37: Warning System

    E 2-14 emd82012* overheat warning this engine has an overheat warning device. If the engine temperature rises too high, the warning device will activate. ( 2 ); included ( — ); n/a if the warning system has been activated, stop the engine and check the water inlet for clogging. *1.Digital tachometer...

  • Page 38

    E 2-15 001094 emd84012* oil level warning / oil filter clogging warning this engine has an oil level warning sys- tem. If oil level falls below lower limit, the warning device will activate. ( 2 ); included ( — ); n/a if the warning system has been activated, stop the engine and check for the cause....

  • Page 39: Chapter 3

    1 2 3 4 5 6 e emf00010 chapter 3 operation installation ........................................3-1 mounting the outboard motor............3-2 filling fuel and engine oil ............3-4 filling fuel..............................................3-4 filling oil ..........................................

  • Page 40: Installation

    3-1 e emf10010 installation c c incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or accessories such as transom ladders/depth finder trans- ducers) can create airborne water spray while the boat is cruising. Severe engine damage may result if ...

  • Page 41

    E 3-2 emf12012 mounting the outboard motor w improper mounting of the outboard motor could result in hazardous conditions such as poor handling, loss of control, or fire hazards. Observe the following: 8 the information presented in this sec- tion is intended as reference only. It is not possible to...

  • Page 42

    E 3-3 w overpowering a boat may cause severe instability. Do not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat. If the boat does not have a capac- ity plate, consult the boat manufacturer. 104014 emu01299 mounting height to run your boat at ...

  • Page 43: Filling Fuel and

    E 3-4 emf20010 filling fuel and engine oil emf30011 filling fuel 1) remove the fuel tank cap. 2) fill the fuel tank carefully. 3) close the cap securely after refueling. Wipe up any spilled fuel. 902055 fuel tank capacity: refer to specifications, page 4-1. Emu01019 ring free fuel additive gasoline ...

  • Page 44

    E 3-5 emu01800 filling oil this engine uses the oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operat- ing conditions. No fuel premixing is need- ed (except during break-in). Simply pour gasoline into the fuel tank and oil into the oil tank. Conven...

  • Page 45

    E 3-6 203016* q w 203014 203015 emf34110 procedure electric start model 1) turn the oil filler access cap on top of the top cowling counterclockwise and open it. 2) open the oil tank filler cap by pulling a tab on the cap. 3) slowly fill the engine oil into the engine oil tank. 4) after filling, rep...

  • Page 46

    E 3-7 emd33110 oil level indicator electric start model the various oil-level system functions are as follows: oil level warning indicator (digital tachometer) remarks oil level warning indicator lamp (analog tachome- ter/bottom cowling) engine oil tank no refilling necessary. Green add oil, refer t...

  • Page 47: Pre-Operation Checks

    E 3-8 emf40012 pre-operation checks w if any item in the pre-operation check is not working properly, have it inspected and repaired before operating the out- board motor. Otherwise, an accident could occur. Emf41110 fuel 8 check to be sure you have plenty of fuel for your trip. 8 make sure there ar...

  • Page 48

    E 3-9 emf43510 engine 8 check the engine and engine mounting. 8 look for loose or damaged fasteners. 8 check the propeller for damage. C c do not start the engine out of water. Overheating and serious engine damage can occur. Emu01790 operation after a long period of storage when operating the engin...

  • Page 49: Breaking In Engine

    E 3-10 emu01776 breaking in engine your new engine requires a period of break-in to allow mating surfaces of mov- ing parts to wear in evenly. Correct break- in will help ensure proper performance and longer engine life. C c 8 failure to follow the break-in procedure could result in reduced engine l...

  • Page 50

    E 3-11 emu01784 run the engine under load (in gear with a propeller installed) as follows. 1) first 10 minutes: run the engine at the lowest possi- ble-speed. A fast idle in neutral is best. 2) next 50 minutes: do not exceed half throttle (approxi- mately 3,000 r/min). Vary engine speed occasionally...

  • Page 51: Starting Engine

    E 902025 3-12 emu01147 starting engine w 8 before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you. 8 when the air vent screw is loosened, gasoline (petrol) vapor will be released. Gas...

  • Page 52

    E 3-13 emf65010 procedure for remote control model 4) place the remote control lever in the neutral position. Note: 8 the start-in-gear protection device pre- vents the engine from starting except when in neutral. 8 it is not necessary to open the free accelerator lever or neutral throttle lever whi...

  • Page 53

    E 3-14 on start off 701022 emf63910 electric start model 7) turn the main switch to “start”, and hold it for a maximum of 5 seconds. 8) immediately the engine starts, release the main switch to return it to “on”. C c 8 do not turn the main switch to “start” when the engine is running. 8 do not keep ...

  • Page 54: Warming Up Engine

    3-15 e emg00210 warming up engine 1) before beginning operation, allow the engine to warm up at idling speed for 3 minutes. (failure to do this will shorten engine life.) 2) check for a steady flow of water from the cooling-water pilot hole. C c a continuous flow of water from the pilot hole shows t...

  • Page 55: Shifting

    3-16 e emg20111 shifting w before shifting, make sure there are no swimmers or obstacles in the water near you. C c to change the shifting position from for- ward to reverse or vice-versa, close the throttle first so that the engine idles (or runs at low speeds). 701043 n f emu00264 forward pull up ...

  • Page 56: Stopping Engine

    E 3-17 emg38010 stopping engine let it cool off for a few minutes at idle or low speed first. Stopping the engine immediately after operating at high speed is not recommended. Emg35310 procedure main switch equipped model 1) turn the main switch to “off”. Note: the engine can also be stopped by pull...

  • Page 57: Trimming Outboard

    E 3-18 000862 q emu01412 trimming outboard motor the trim angle of the outboard motor helps determine the position of the bow of the boat in the water. The correct trim angle will help improve performance and fuel economy while reducing strain on the engine. The correct trim angle depends upon the c...

  • Page 58

    E 3-19 up dn 701034 up dn q emu01401 power trim/tilt model w 8 be sure all people are clear of the out- board motor when adjusting the trim/tilt angle, also be careful not to pinch any body parts between the drive unit and clamp bracket. 8 use caution when trying a trim position for the first time. ...

  • Page 59

    E 3-20 emg62010 bow up when the boat is on plane, a bow-up atti- tude result in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees. When trimmed out, the boat may have more tendency to steer to one side or the other. Compensate fo...

  • Page 60: Tilting Up/down

    E 3-21 000817 emh10110 tilting up/down if the engine will be stopped for some time, or if the boat is moored in shallows, the engine should be tilted up to protect the propeller and casing from damage by collision with obstructions, and also to reduce salt corrosion. C c 8 before tilting the motor, ...

  • Page 61

    E 3-22 emg63210 procedure for tilting up power trim and tilt model 1) remove the fuel-line connection from the motor. 304036 up dn 701034 up dn 302013* dn up 403011 2) push the power trim and tilt switch “up” until the outboard has tilted up completely. 3) turn the tilt-support lever toward engine b...

  • Page 62: Cruising In Other

    E emh60010 cruising in other conditions cruising in salt water after operating in salt water, wash out the cooling-water passages with fresh water to prevent them from becoming clogged- up with salt deposits. Note: refer to cooling system flushing instruc- tions in “transporting and storing outboard...

  • Page 63: Chapter 4

    1 2 3 4 5 6 e emk00010 chapter 4 maintenance specifications .....................................4-1 transporting and storing outboard motor ...............................4-3 trailering outboard motor...................4-3 storing outboard motor ......................4-4 periodic maintenance..........

  • Page 64: Specifications

    Model unit 40trb item 4-1 e dimensions performance 8overall length mm (in.) 8overall width mm (in.) 8overall height l mm (in.) 8transom height l mm (in.) 8weight* l kg (lb.) 8full throttle operating range r/min 8maximum output kw (hp) 8idling speed r/min engine 8engine type number of cylinder displa...

  • Page 65

    E 4-2 670 (26.4) 360 (14.2) 1,319 (51.9) 533 (21.0) 86 (190) forward-neutral-reverse 1.85 (24/13) power trim and tilt g 2-stroke, l 3 698 (42.6) 67.0 × 66.0 (2.6 × 2.6) c.D.I system b8hs-10 0.9–1.0 (0.035–0.039) remote control electric start 245 323 52 12-6 prime start system regular-unleaded gasoli...

  • Page 66: Transporting and

    4-3 e emu01369* transporting and storing outboard motor w leaking fuel is a fire hazard. When trans- porting and storing the outboard motor, close the air vent screw and fuel cock to prevent fuel from leaking. Trailering outboard motor the motor should be trailered and stored in the normal running p...

  • Page 67

    E 4-4 emu01796 storing outboard motor when storing your yamaha outboard motor for prolonged periods of time (2 months or longer), several important pro- cedures must be performed to prevent excessive damage. This is especially important for your oil injection-equipped outboard motor due to the lean ...

  • Page 68

    E 4-5 605024 q w emk22511 flushing cooling system and fogging engine cooling system flushing is essential to prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fog- ging of the engine is mandatory to pre- vent expensive engine damage due to rust. Perform the flushing ...

  • Page 69

    E 4-6 4) just prior to turning off the engine, quickly spray “yamaha stor-rite engine fogging oil” (part no. Lub- strrt-12-00) alternately into each carburetor. When properly done, the engine will smoke excessively and almost stall. 8 flushing with the flushing attachment 1) remove the top cowling a...

  • Page 70

    4-7 e emk26112 lubrication 1) remove the spark plugs, and spray a 10 second spray of “yamaha stor- rite engine fogging oil” into each cylinder. Grease the spark plug threads and reinstall the spark plugs and torque to proper specification. (refer to “cleaning and adjust- ing spark plug”.) 2) turn th...

  • Page 71

    E 4-8 emk29010 battery care w battery electrolyte is poisonous and dan- gerous, causing severe burns, etc. It con- tains sulfuric acid. Avoid contact with skin, eyes, or clothing. Antidote: external; flush with water. Internal; drink large quantities of water or milk. Follow with milk of mag- nesia,...

  • Page 72: Periodic Maintenance

    E 4-9 emu01569 periodic maintenance w be sure to turn off the engine when you perform maintenance unless otherwise specified. If the owner is not familiar with machine servicing, this work should be done by a yamaha dealer or other quali- fied mechanic. Maintenance, replacement, or repair of the emi...

  • Page 73

    4-10 e *1. For power trim and tilt model *2. If equipped *3. When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. Emk30114* maintenance chart frequency of maintenance operations may be adjusted according to the operating con- ditions, but...

  • Page 74

    E 4-11 emu00366 greasing yamaha marine grease (water resistant grease) 63b-9-1a-4 2/28/02 5:14 pm page 12.

  • Page 75

    E 4-12 emu01202 cleaning and adjusting spark plug w 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 co...

  • Page 76

    E 4-13 when fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque. Note: if a torque-wrench is not available when you are fitting a spark plug, a good esti- mate of the correct torque is 1/4 to 1/2...

  • Page 77

    E 4-14 emk38010 checking fuel system w gasoline (petrol) and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes, flames or other sources of ignition. Check the fuel line for leaks, cracks, or malfunctions. If any problem is found, it should be repaired immediately by ya...

  • Page 78

    E 4-15 emk50011 cleaning fuel filter w gasoline (petrol) is highly flammable, and its vapors are flammable and explosive. 8 if you have any question about properly doing this procedure, consult your yamaha dealer. 8 do not perform this procedure on a hot or running engine. Allow the engine to cool. ...

  • Page 79

    E 4-16 5) attach the filter assembly to the bracket with that the fuel hoses are attached to the filter assembly. 6) run the engine and check the filter and lines for leaks. 1 filter element 2 o-ring 3 filter cup 4 filter housing emk54110 adjusting idling speed w 8 do not touch or remove electrical ...

  • Page 80

    E 4-17 2) adjust the throttle stop-screw to set the idling speed to specification (see “specifications”) by turning the stop-screw clockwise to increase the idling speed, and turning it counter- clockwise to decrease the idling speed. Note: correct idling-speed adjustment is only possible if the eng...

  • Page 81

    E 4-18 emu01329 replacing fuse if the fuse has blown on an electric start model, open the fuse holder and replace the fuse with a new one of proper amper- age. W be sure to use the specified fuse. An incorrect fuse or a piece of wire may allow excessive current flow. This could cause electrical syst...

  • Page 82

    E 4-19 emu00992 checking power trim and tilt system w 8 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 accidentally falls. 8 make sure no one is under the out- board before performing this test. 1) check the po...

  • Page 83

    E 4-20 eml08011* checking propeller w you could be seriously injured if the engine accidentally starts while you are near the propeller. 8 before inspecting, removing or installing the propeller, remove the spark plug caps from the spark plugs. Also, put the shift control in neutral, put the main sw...

  • Page 84

    E 4-21 1 thrust washer 2 propeller 3 spacer 4 washer 5 propeller nut 6 cotter pin installation 1) apply yamaha marine grease (water- resistant grease) to the propeller- shaft. 2) slide the propeller over the propeller- shaft. C c be sure to install the thrust washer before installing propeller, othe...

  • Page 85

    E 4-22 emu01460 changing gear oil w 8 be sure the outboard is securely fas- tened to the transom or a stable stand. You could be severely injured if the out- board falls on you. 8 never get under the lower unit while it is tilted, even when the tilt-support lever/knob is locked. Severe injury could ...

  • Page 86

    E 4-23 5) with the outboard motor in a vertical position, and using a flexible or pres- surized filling device, inject the gear oil into the oil drain plug hole. 6) when the oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug. 7) insert and tighten the oil drain ...

  • Page 87

    E 4-24 to clean the fuel tank 1) empty the fuel tank into an approved gasoline (petrol) container. 2) pour a small amount of suitable sol- vent in the tank. Reinstall the cap and shake the tank. Drain the solvent completely. To clean the fuel filter 1) remove the screws holding the fuel hose joint a...

  • Page 88

    E 4-25 eml26010 checking battery (for electric start model) w battery electrolytic fluid is dangerous; it contains sulfuric acid and therefore is poi- sonous and highly caustic. Always follow these preventive mea- sures: 8 avoid bodily contact with electrolytic fluid as it can cause severe burns or ...

  • Page 89

    E 4-26 1) check the electrolyte level at least once a month. Fill to the manufactur- er’s recommended level when neces- sary. Top up only with distilled water (or pure de-ionized water suitable to use in batteries). C c ordinary tap-water contains minerals harmhul to a battery, and should not be use...

  • Page 90

    E 4-27 emu01280 disconnecting the battery disconnect the black lead from the neg- ative (-) terminal first. Then disconnect the red lead from the positive (+) termi- nal. Upper level lower level 901012 q w e emu01279 connecting the battery w mount the battery holder securely in a dry, well-ventilate...

  • Page 91

    E 4-28 eml42011 motor exterior cleaning the outboard motor after use, wash the exterior of the out- board with fresh water. Flush the cooling system with fresh water. Cleaning cooling-water passages note: refer to cooling system flushing instruc- tions in “transporting and storing outboard motor”. C...

  • Page 92: -Memo-

    E -memo- 63b-9-1a-4 2/28/02 5:14 pm page 30

  • Page 93: Chapter 5

    1 2 3 4 5 6 e emn00010 chapter 5 trouble recovery troubleshooting ..............................5-1 temporary action in emergency ............................................5-5 impact damage.....................................5-5 power trim/tilt will not operate ...........5-5 starter will not ope...

  • Page 94: Troubleshooting

    5-1 e emu01204¯ troubleshooting a problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. The troubleshooting chart describes basic checks and possi- ble remedies. (this chart covers all yamaha outboard motors. Therefore, some items may not ap...

  • Page 95

    E 5-2 c. Engine idles irregularly or stalls. Trouble possible cause remedy 1. Spark plug(s) fouled or incorrect type. 2. Fuel system obstructed. 3. Fuel contaminated or stale. 4. Fuel filter clogged. 5. Failed ignition parts. 6. Warning system activated. 7. Spark plug gap incorrect. 8. Poor connecti...

  • Page 96

    5-3 e d. Warning buzzer sounds or indicator lamp lights. Trouble possible cause remedy 1. Cooling system clogged. 2. Engine oil level low. 3. Heat range of spark plug incorrect. 4. Specified engine oil not used. 5. Engine oil contaminated or deteriorated. 6. Oil filter clogged. 7. Oil feed/injection...

  • Page 97

    E 5-4 trouble possible cause remedy 13. Poor connections or damaged ignition wiring. 14. Failed ignition parts. 15. Specified engine oil not used. 16. Thermostat faulty or clogged. 17. Air vent screw closed. 18. Fuel pump damaged. 19. Fuel joint connection incorrect. 20. Heat range of spark plug inc...

  • Page 98: Temporary Action In

    5-5 e emn20010 temporary action in emergency emu01492 impact damage w the outboard motor can be seriously damaged by a collision while operating or trailering. Damage could make the out- board motor unsafe to operate. If the outboard motor hits any object in the water, follow the procedure below. 1)...

  • Page 99

    E 5-6 emn30310 starter will not operate if the starter mechanism does not operate (engine cannot be cranked with the starter), the engine can be started with an emergency starter rope. W 8 use this procedure only in an emer- gency and only to return to port for repairs. 8 when the emergency starter ...

  • Page 100

    E 5-7 procedure 1) remove the top cowling. 2) remove the starter/flywheel cover by removing the bolts. Note: on a model equipped with the start-in- gear protection device (cable), disconnect the cable from the starter. 208026 on start off 701024 208052 3) prepare the engine for starting. See “starti...

  • Page 101

    E 5-8 emn32411 engine fails to operate cold engine fails to start (for prime start model) if a cold engine fails to start, use the fol- lowing procedure. 1) adjust the trim angle so that the drive shaft is at right angles to the water surface or is trimmed in. 214011 open close 902025 n 701014 2) op...

  • Page 102

    E 5-9 5) set the main switch to “on”. 6) set the main switch to “start”. Note: when the starter mechanism malfunctions, refer to “starter will not operate”. C c 8 do not turn the main switch to “start”when the engine is running. 8 do not keep the starter-motor turning for more than 5 seconds with th...

  • Page 103

    E 5-10 emn50011 treatment of submerged motor if the outboard motor is submerged, immediately take it a yamaha dealer. Oth- erwise, some corrosion may begin almost immediately. If you cannot immediately take the outboard motor to a yamaha dealer, follow the procedure bellow for taking care to minimiz...

  • Page 104: -Memo-

    E -memo- 63b-9-1a-5 2/28/02 5:15 pm page 12.

  • Page 105: Chapter 6

    Emp00010 chapter 6 index index ........................................................6-1 1 2 3 4 5 6 e 63b-9-1a-6 2/28/02 5:15 pm page 1.

  • Page 106: Index

    6-1 emp10010 index a adjusting idling speed ..........................4-16 adjusting trim angle ..............................3-19 air vent screw...........................................2-2 b basic boating rules ..................................1-6 battery care.......................................

  • Page 107

    6-2 mounting the outboard motor ...............3-2 n neutral interlock trigger ..........................2-4 neutral throttle lever ...............................2-4 o oil level indicator............................2-11, 3-7 oil level warning/oil filter clogging warning ...............................

  • Page 108: Canada

    Emu01599 important warranty information for u.S.A. And canada welcome to the yamaha family! Congratulations on the purchase of your new yamaha marine power. Yamaha is commit- ted to exceptional customer satisfaction, and we want your ownership experience to be a satisfying one. Please read the follo...

  • Page 109

    5. Your warranty applies specifically to repairs made in the country of purchase. If your u.S.-purchased yamaha needs warranty service while in canada, or your canadian pur- chased yamaha needs service while in the united states, yamaha will assist the local dealer whenever possible. However, some p...

  • Page 110

    Emu00912* yamaha motor corporation, u.S.A. Outboard motor two year limited warranty yamaha motor corporation, u.S.A. Is proud of its heritage and reputation for producing products with high standards of quality and workmanship. Product excellence provides the cornerstone for our commitment to custom...

  • Page 111

    Specific parts excluded from warranty. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs, shear pins, propellers, hubs, fuel and oil filters, brushes for the starter motor and power tilt motor, water pump impellers, and anodes are not covered by warranty. Charges for ...

  • Page 112

    Customer service if your machine requires warranty service, you must take it to any authorized yamaha outboard dealer within the continental united states. Be sure to bring your warranty registration identification or other valid proof of the original date of purchase. If a question or problem arise...

  • Page 113

    Emu01178 important warranty information if you use your yamaha outside u.S.A. Or canada welcome to the yamaha family! Congratulations on the purchase of your new yamaha marine power. Yamaha is com- mitted to exceptional customer satisfaction, and we want your ownership experience to be a satisfying ...

  • Page 114

    63b-9-1a-6 2/28/02 5:15 pm page 10

  • Page 115

    63b-9-1a hyoshi 4/12/02 3:31 pm page 2 (2,1).

  • Page 116: Own

    Printed in japan march 2002-0.5 × 1 ! 63b-28199-1a (40veto, 50heto) (e) printed on recycled paper own 63b-9-1a hyoshi 4/12/02 3:31 pm page 1 (1,1).

  • Page 117

    Yamaha motor co., ltd. Made in japan pays d'origine japon 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 q...

  • Page 118: Attn:  Warranty Department

    Place postage here attn: warranty department warranty card 2/27/02 11:47 am page 2.