Yamaha E25B Owner'S Manual Download | Manualshive

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Components

EMU2579T

Components diagram

TIP:

* May not be exactly as shown; also may not be included as standard equipment on all mod-
els (order from dealer).

E25B, 25B, 25X, 30H

EMU25802

Fuel tank

If your model was equipped with a portable
fuel tank, its function is as follows.

WARNING

EWM00020

The fuel tank supplied with this engine is

9

8

7

6

3

4

5

2

1

19

18

17

11

12

13

14

11

19

18
17

15

16

14

15

16

21

22

10

20

ZMU07130

1. Top cowling
2. Cowling lock lever
3. Anti-cavitation plate
4. Trim tab
5. Propeller*
6. Cooling water inlet
7. Shallow water lever
8. Trim rod
9. Clamp bracket
10. Clip*
11. Manual starter handle
12. Engine stop button/Engine shut-off switch*
13. Tiller handle*
14. Choke knob
15. Tilt lock lever

16. Clamp screw
17. Restraint cable attachment
18. Tilt support knob
19. Gear shift lever
20. 2-pin connector*
21. Remote control box (binnacle mount type)*
22. Fuel tank

69R-9-2A-1E0.book 14 ページ２０１０年２月３日　水曜日　午後５時１８分

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Summary of Contents for E25B

Page 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL E25B 25B 25X 30H 69R 28199 2A E0 69R 9 2A 1E0 book 1 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 2: ... manual carefully before operating this outboard motor Keep this manual onboard in a waterproof bag when boating This manual should stay with the outboard motor if it is sold 69R 9 2A 1E0 book 1 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 3: ...ncies between your machine and this manual If there is any question concerning this manu al please consult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the product and perform the specified periodic inspections and main tenance by correctly following the instruc tions in the owner s manual Any damage resulting from neglect of these instructions is not covered by w...

Page 4: ...ry 11 Multiple batteries 11 Without a rectifier or Rectifier Regulator 11 Propeller selection 11 Start in gear protection 12 Engine oil requirements 12 Fuel requirements 12 Gasoline 12 Muddy or acidic water 13 Anti fouling paint 13 Motor disposal requirements 13 Emergency equipment 13 Components 14 Components diagram 14 Fuel tank 14 Fuel joint 15 Fuel gauge 15 Fuel tank cap 15 Air vent screw 15 Re...

Page 5: ...ure for tilting up manual tilt models 44 Procedure for tilting down manual tilt models 45 Shallow water 45 Cruising in shallow water manual tilt models 45 Cruising in other conditions 46 Maintenance 47 Transporting and storing outboard motor 47 Clamp screw mounting models 47 Storing outboard motor 48 Procedure 48 Lubrication 49 Cleaning the outboard motor 49 Checking painted surface of outboard mo...

Page 6: ...Table of contents Emergency starting engine 66 Treatment of submerged motor 67 69R 9 2A 1E0 book 3 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 7: ...stops if the operator falls overboard or leaves the helm This prevents the boat from running away under power and leaving people stranded or running over people or objects Always attach the engine shut off cord to a secure place on your clothing or your arm or leg while operating Do not remove it to leave the helm while the boat is moving Do not at tach the cord to clothing that could tear loose o...

Page 8: ...and stop the engine Stay away from swimming areas Swimmers can be hard to see The propeller can keep moving even when the motor is in neutral Stop the engine when a person is in the water near you EMU33751 Passengers Consult your boat manufacturer s instruc tions for details about appropriate passenger locations in your boat and be sure all pas sengers are positioned properly before ac celerating ...

Page 9: ...e that you can stop in time before hitting an obstacle apply throttle and turn in another direction EMU33790 Weather Stay informed about the weather Check weather forecasts before boating Avoid boating in hazardous weather EMU33880 Passenger training Make sure at least one other passenger is trained to operate the boat in the event of an emergency EMU33890 Boating safety publications Be informed a...

Page 10: ...wn in the illustration Record this number in the space provided for reference in case you need a new key EMU37290 EC Declaration of Conformity DoC This outboard motor conforms to certain por tions of the European Parliament directive relating to machinery Each conformed outboard motor accompa nied with EC DoC EC DoC contains the fol lowing information Name of Engine Manufacture Model name Product ...

Page 11: ...abel Engines affixed with this label conform to certain portion s of the Australian Radio Communications Act 1 CE marking location 1 C Tick label location 1 ZMU04730 ZMU06040 1 ZMU05721 ZMU01697 69R 9 2A 1E0 book 5 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 12: ... manuals supplied with the boat Read all labels on the outboard motor and the boat If you need any additional information contact your Yamaha dealer EMU33832 Warning labels If these labels are damaged or missing contact your Yamaha dealer for replacements E25B 25B 25X 30H 3 1 2 ZMU06042 69R 9 2A 1E0 book 6 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 13: ...ds hair and clothing away from rotating parts while the engine is running Do not touch or remove electrical parts when starting or during operation 3 WARNING EWM01671 Read Owner s Manuals and labels Wear an approved personal flotation device PFD Attach engine shut off cord lanyard to your PFD arm or leg so the engine stops if you accidentally leave the helm which could prevent a runaway boat 1 2 3...

Page 14: ...Warning Read Owner s Manual Hazard caused by continuous rotation Electrical hazard Remote control lever gear shift lever operat ing direction dual direction Engine start Engine cranking ZMU05696 ZMU05664 ZMU05665 ZMU05666 ZMU05667 ZMU05668 69R 9 2A 1E0 book 8 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 15: ...eight AL L 25BMH 54 5 kg 120 lb 30HMH 54 5 kg 120 lb 30HW 58 0 kg 128 lb E25BMH 54 5 kg 120 lb Performance Full throttle operating range 4500 5500 r min Maximum output 25BMH 18 4 kW 5000 r min 25 HP 5000 r min 25XMH 18 4 kW 5000 r min 25 HP 5000 r min 30HMH 22 1 kW 5000 r min 30 HP 5000 r min 30HW 22 1 kW 5000 r min 30 HP 5000 r min E25BMH 18 4 kW 5000 r min 25 HP 5000 r min Idle speed in neutral ...

Page 16: ...commended gear oil Hypoid gear oil SAE 90 Gear oil quantity 0 320 L 0 338 US qt 0 282 Imp qt Tightening torque for engine Spark plug 25 0 Nm 2 55 kgf m 18 4 ft lb Propeller nut 35 0 Nm 3 57 kgf m 25 8 ft lb Noise and vibration level Operator sound pressure level ICOMIA 39 94 and 40 94 30HMH 82 7 dB A E25BMH 82 7 dB A Vibration on tiller handle ICOMIA 38 94 30HMH Vibration on tiller handle is under...

Page 17: ... Do not put flammable items or loose heavy or metal objects in the same compartment as the battery Fire explosion or sparks could result EWM01820 EMU36300 Multiple batteries To connect multiple batteries such as for multiple engine configurations or for an ac cessory battery consult your Yamaha dealer about battery selection and correct wiring EMU25730 Without a rectifier or Rectifier Regulator NO...

Page 18: ...ap proved 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 EMU25651 Engine oil requirements If the recommended engine oil is not avail able another 2 stroke engine oil with an NMMA certified TC W3 rating may be used EMU36360 Fuel requirements EMU36771 Ga...

Page 19: ...improves boat performance The boat bottom should be kept as clean of ma rine growth as possible If necessary the boat bottom can be coated with an anti foul ing paint approved for your area to inhibit marine growth Do not use anti fouling paint which includes copper or graphite These paints can cause more rapid engine corrosion EMU36341 Motor disposal requirements Never illegally discard dump the ...

Page 20: ...18 17 11 12 13 14 11 19 18 17 15 16 14 15 16 21 22 10 20 ZMU07130 1 Top cowling 2 Cowling lock lever 3 Anti cavitation plate 4 Trim tab 5 Propeller 6 Cooling water inlet 7 Shallow water lever 8 Trim rod 9 Clamp bracket 10 Clip 11 Manual starter handle 12 Engine stop button Engine shut off switch 13 Tiller handle 14 Choke knob 15 Tilt lock lever 16 Clamp screw 17 Restraint cable attachment 18 Tilt ...

Page 21: ...ounterclockwise EMU26181 Remote control box The remote control lever actuates both the shifter and the throttle The electrical switch es are mounted on the remote control box EMU26190 Remote control lever Moving the lever forward from the neutral po sition engages forward gear Pulling the le ver back from neutral engages reverse The engine will continue to run at idle until the le ver is moved abo...

Page 22: ...control lever will operate only when the neutral throttle lever is in the closed position EMU26221 Choke switch 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 When the key is released the choke will switch off automatically EMU25912 Tiller handle To change...

Page 23: ...the setting that offers the best performance and fuel economy for the desired operation EMU25976 Throttle friction adjuster A friction device provides adjustable resis tance to movement of the throttle grip or the remote control lever and can be set accord ing to operator preference To increase resistance turn the adjuster clockwise To decrease resistance turn the adjuster counterclockwise WARNING...

Page 24: ...RNING At tach the engine shut off cord to a secure place on your clothing or your arm or leg while operating Do not attach the cord to clothing that could tear loose Do not route the cord where it could become en tangled preventing it from functioning Avoid accidentally pulling the cord dur ing normal operation Loss of engine power means the loss of most steering control Also without engine power ...

Page 25: ...off and the key can be removed on With the main switch in the on posi tion the electrical circuits are on and the key cannot be removed start With the main switch in the start po sition the starter motor turns to start the en gine When the key is released it returns automatically to the on position EMU26122 Steering friction adjuster A friction device provides adjustable resis tance to the steerin...

Page 26: ...be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force If the boat tends to veer to the left port side turn the trim tab rear end to the port side A in the figure If the boat tends to veer to the right star board side turn the trim tab end to the star board side B in the figure EMU26262 Trim rod tilt pin The position of the trim rod ...

Page 27: ...or knob when trailering the boat The outboard motor could shake loose from the tilt sup port and fall If the motor cannot be trail ered in the normal running position use an additional support device to secure it in the tilt position EMU26373 Cowling lock lever s turn type To remove the engine top cowling turn the cowling lock lever s and lift off the cowling When installing the cowling check to b...

Page 28: ...place the cap on it NOTICE ECM01000 Do not connect the 2 pin connector di rectly to the battery terminals Otherwise the electric system will be damaged EMU26420 Battery charging information If you need to charge the battery use a gen uine charge cable to make the charging cir cuit For details on the cable connections consult your Yamaha dealer TIP Do not use the 2 pin connector while charging The ...

Page 29: ...high the alert device will activate The engine speed will automatically de crease to about 2000 r min The overheat alert indicator will light or blink The buzzer will sound if equipped on the tiller handle remote control box or main switch panel If the alert system has activated stop the en gine and check the cooling water inlets Check trim angle to be sure that the cool ing water inlet is submerg...

Page 30: ...3470 Mounting the outboard motor The outboard motor should be mounted so that the boat is well balanced Otherwise the boat could be hard to steer For single en gine boats mount the outboard motor on the centerline keel line of the boat EMU26925 Mounting height To run your boat at optimum efficiency the water resistance drag of the boat and out board motor must be made as little as possi ble The mo...

Page 31: ...of the outboard motor see page 41 EMU26973 Clamping the outboard motor 1 Place the outboard motor on the tran som so that it is positioned as close to the center as possible Tighten the tran som clamp screws evenly and securely Occasionally check the clamp screws for tightness during operation of the out board motor because they could be come loose due to engine vibration WARNING Loose clamp screw...

Page 32: ...they must be of at least the same quality of material and strength and must be tightened se curely After tightening test run the engine and check their tightness EWM00651 1 Bolts 1 ZMU02014 69R 9 2A 1E0 book 26 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 33: ...s 3 Next two hours Accelerate at full throttle onto plane then reduce engine speed to three quar ter throttle approximately 4000 r min Vary engine speed occasionally Run at full throttle for one minute then allow about 10 minutes of operation at three quarter throttle or less to let the engine cool 4 Remaining seven hours Run the engine at any speed However avoid operating at full throttle for mor...

Page 34: ...make the outboard unsafe to operate EMU36451 Check for fuel leaks Check for fuel leaks or gasoline fumes in the boat Check for fuel leakage from the fuel sys tem Check the fuel tank and fuel lines for cracks swellings or other damages EMU37321 Checking the fuel filter Check that the fuel filter is clean and free of water If any water is found in the fuel or if a significant amount of debris is fou...

Page 35: ...U36954 Install top cowling 1 Be sure that the cowling lock lever is re leased 2 Be sure that the rubber seal is seated all the way around the top cowling 3 Place the top cowling on the bottom cowling 4 Check to be sure the rubber seal is seat ed correctly between the top cowling and the bottom cowling 5 Move the lever to lock the cowling as shown NOTICE If the top cowling is not installed correctl...

Page 36: ...ome gasoline or inhale a lot of gasoline vapor or get some gasoline in your eyes see your doctor immediately If gasoline spills on your skin wash with soap and wa ter If gasoline spills on your clothing change your clothes 1 Be sure the engine is stopped 2 Disconnect the fuel line from the fuel tank and tighten the air vent screw on the fuel tank cap 3 Remove the portable tank from the boat 4 Be s...

Page 37: ... seizure High oil ratio Too much oil could cause fouled spark plugs smoky exhaust and heavy carbon deposits If equipped with a portable fuel tank 1 Pour oil into the portable fuel tank and then add gasoline 2 Replace the fuel tank cap and close tightly Fuel tank capacity 24 L 6 34 US gal 5 28 Imp gal Gasoline to engine oil ratio Break in period See page 27 After break in 100 1 ZMU02834 1 Gasoline ...

Page 38: ...he air vent screw is loosened gasoline vapor will be released Gaso line is highly flammable and its vapors are flammable and explosive Refrain from smoking and keep away from open flames and sparks while loosen ing the air vent screw This product emits exhaust gases which contain carbon monoxide a col orless odorless gas which could cause brain damage or death when inhaled Symptoms include nausea ...

Page 39: ...ejected Attach the engine shut off cord to a secure place on your cloth ing or your arm or leg while operating Do not attach the cord to clothing that could tear loose Do not route the cord where it could become entangled pre venting it from functioning Avoid accidentally pulling the cord dur ing normal operation Loss of engine power means the loss of most steering control Also without engine powe...

Page 40: ...ary 6 After the engine starts slowly return the manual starter handle to its original posi tion before releasing it 7 Slowly return the throttle grip to the fully closed position TIP When the engine is cold it needs to be warmed up For further information see page 38 If the engine does not start on the first try repeat the procedure If the engine fails to start after 4 or 5 tries open the throttle...

Page 41: ...l lever in neutral TIP The start in gear protection device prevents the engine from starting except when in neu tral 2 Attach the engine shut off cord to a se cure place on your clothing or your arm or leg Then install the clip on the other end of the cord into the engine shut off switch 3 Open the throttle slightly without shifting using the neutral throttle lever You may need to change the throt...

Page 42: ...art the engine again If the engine still fails to start see page 62 EMU27645 Electric start remote control models WARNING EWM01840 Failure to attached engine shut off cord could result in a runaway boat if opera tor is ejected Attach the engine shut off cord to a secure place on your cloth ing or your arm or leg while operating Do not attach the cord to clothing that could tear loose Do not route ...

Page 43: ... until you feel resistance then lift slightly more The neutral throttle lever or free accelera tor can only be used when the remote con trol lever is in neutral 5 Press in and hold the main switch to op erate the remote choke system The re mote choke switch automatically returns to its normal position when you release your hand Therefore keep the switch pressed in TIP It is not necessary to use th...

Page 44: ...ing out of the pilot hole at all times while the engine is running overheating and serious damage could occur Stop the engine and check wheth er 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 cor rected EMU27670 Warming up engine EMU27683 Choke start models After starting the engine allow it to id...

Page 45: ...of neutral 1 Pull the neutral interlock trigger up if equipped 2 Move the remote control lever gear shift lever firmly and crisply forward for forward gear or backward for reverse gear about 35 a detent can felt for re mote control models Be sure to check that the tilt lock lever is in the lock down position if equipped before operating in reverse To shift from in gear forward reverse to neutral 1...

Page 46: ...ile traveling at planing speeds Loss of control boat swamping or damage to the boat could occur The boat is not equipped with a separate braking system Water resistance stops it af ter the throttle lever is moved back to idle The stopping distance varies depending on gross weight water surface conditions and wind direction EMU27821 Stopping engine Before stopping the engine first let it cool off f...

Page 47: ...can cause boat instability and can make steering the boat more difficult This in creases 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 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 im prove performance and fuel economy while reducing...

Page 48: ...ns WARNING EWM00400 Stop the engine before adjusting the trim angle Use care to avoid being pinched when removing or installing the rod Use caution when trying a trim position for the first time Increase speed gradu ally and watch for any signs of instabil ity or control problems Improper trim angle can cause loss of control TIP The outboard motor trim angle can be changed approximately 4 degrees ...

Page 49: ...t unstable Resistance at the bow is greatly increased heightening the danger of bow steering and making opera tion difficult and dangerous TIP Depending on the type of boat the outboard motor trim angle may have little effect on the trim of the boat when operating EMU27935 Tilting up and down If the engine will be stopped for some time or if the boat is moored in shallows the out board motor shoul...

Page 50: ...lock lever if equipped in the release up position 4 Pull up the shallow water lever if equipped 5 Hold the rear of the top cowling with one hand and tilt the engine up fully 6 Push the tilt support knob into the clamp bracket Or the tilt support bar will turn to the lock position automatically NOTICE Do not use the tilt support lever or knob when trailering the boat The outboard motor could shake ...

Page 51: ...water obstacle could cause the outboard motor to lift out of the water resulting in loss of control Use extra care when operating in re verse Too much reverse thrust can cause the outboard motor to lift out of the water increasing the chance of ac cident and personal injury NOTICE ECM00260 Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of t...

Page 52: ... salt water After operating in salt water flush the cooling water passages with fresh water to prevent them from becoming clogged Also rinse the outside of the outboard motor with fresh wa ter Cruising in muddy turbid or acidic water Yamaha strongly recommends that you use the optional chromium plated water pump kit see page 13 if you use the outboard motor in acidic water or water with a lot of s...

Page 53: ... NOTICE ECM02440 When storing the outboard motor for pro longed time fuel must be drained from the fuel tank The deteriorated fuel could clog the fuel line causing engine start dif ficulty or malfunction When storing or transporting the outboard motor make sure to follow the procedure list ed below Disconnect the fuel line from the outboard motor Tighten the fuel tank cap and its air vent screw Wh...

Page 54: ...e ECM01840 For fur ther information see page 49 2 Disconnect the fuel line from the motor or shut off the fuel cock if equipped 3 Remove the engine top cowling and si lencer cover Remove the propeller 4 Install the outboard motor on the test tank Fill the tank with fresh water to above the level of the anti cavitation plate NOTICE If the fresh water level is below the level of the anti cavita tion...

Page 55: ...l grease fittings For further de tails see page 54 TIP For long term storage fogging the engine with oil is recommended Contact your Yamaha dealer for information about fogging oil and procedures for your engine EMU28451 Cleaning the outboard motor After use wash the exterior of the outboard motor with fresh water Flush the cooling system with fresh water EMU28461 Checking painted surface of outbo...

Page 56: ...ng continuously at or near maxi mum engine speed rpm for many hours Operating continuously at a low engine speed rpm for many hours Operating without sufficient time for engine to warm up and cool down Frequent quick acceleration and decelera tion Frequent shifting Frequently starting and stopping the en gine s Operation that fluctuates often between light and heavy cargo loads Outboard motors ope...

Page 57: ...r after each use The symbol indicates the check ups which you may carry out yourself The symbol indicates work to be carried out by your Yamaha dealer Item Actions Initial Every 20 hours 3 months 100 hours 1 year 300 hours 3 years 500 hours 5 years Anode s external Inspection or replace ment as necessary Anode s cylinder head thermostat cover Inspection or replace ment as necessary Anodes exhaust ...

Page 58: ...nec essary Spark plug s Inspection or replace ment as necessary Spark plug caps spark plug wires Inspection or replace ment as necessary Water from the cooling water pilot hole Inspection Throttle link throttle cable throttle pick up timing Inspection adjustment or replacement as nec essary Thermostat Inspection or replace ment as necessary Cooling water inlet Inspection Main switch stop switch ch...

Page 59: ...Maintenance 53 EMU34451 Maintenance chart 2 Item Actions Every 1000 hours Exhaust guide exhaust manifold Inspection or replace ment as necessary 69R 9 2A 1E0 book 53 ページ２０１０年２月３日水曜日午後５時１８分 ...

Page 60: ...onent and is easy to inspect The condition of the spark plug can indicate something about the condition of the engine For exam ple if the center electrode porcelain is very white this could indicate an intake air leak or carburetion problem in that cylinder Do not attempt to diagnose any problems yourself Instead take the outboard motor to a Yamaha dealer You should periodically re ZMU02918 69R 9 ...

Page 61: ...y dirt from the threads and then screw it in to the correct torque TIP If a torque wrench is not available when you are fitting a spark plug a good estimate of the correct torque is 1 4 to 1 2 a turn past fin ger tight Have the spark plug adjusted to the correct torque as soon as possible with a torque wrench EMU37450 Checking fuel filter Check the fuel filter periodically If any water or foreign ...

Page 62: ...chanic EMU29114 Inspecting wiring and connectors Inspect that each connector is engaged securely Inspect that each ground lead is properly secured EMU32112 Checking propeller WARNING EWM01881 You could be seriously injured if the en gine accidentally starts when you are near the propeller Before inspecting re moving or installing the propeller place the shift control in neutral turn the main switc...

Page 63: ... a corro sion resistant grease to the propeller shaft 2 Install the spacer if equipped thrust washer washer if equipped and pro peller on the propeller shaft NOTICE Make sure to install the thrust washer before installing the propeller Other wise the lower case and propeller boss could be damaged ECM01881 3 Install the spacer if equipped and the washer Tighten the propeller nut to the specified to...

Page 64: ...agnetic gear oil drain screw this can indicate lower unit problem Con sult your Yamaha dealer ECM01900 TIP If a magnetic gear oil drain screw is equipped remove all metal particles from the screw before installing it Always use new gaskets Do not reuse the removed gaskets 4 Remove the oil level plug and gasket to allow the oil to drain completely NOTICE Check the used gear oil after it has been dr...

Page 65: ...losion hazard Dispose of old gasoline according to lo cal regulations 1 Empty the fuel tank into an approved container 2 Pour a small amount of suitable solvent into the tank Install the cap and shake the tank Drain the solvent completely 3 Remove the screws holding the fuel joint assembly Pull the assembly out of the tank 4 Clean the filter located on the end of the suction pipe in a suitable cle...

Page 66: ...uickly deteriorate 1 Check the electrolyte level 2 Check the battery s charge If your boat is equipped with the digital speedome ter the voltmeter and low battery alert functions will help you monitor the bat tery s charge If the battery needs charg ing consult your Yamaha dealer 3 Check the battery connections They should be clean secure and covered by an insulating cover WARNING Bad connections ...

Page 67: ...tch NOTICE If they are left on the electrical system can be damaged ECM01930 2 Disconnect the negative cable s from the negative terminal NOTICE Al ways disconnect all negative ca bles first to avoid a short circuit and damage to the electrical system ECM01940 3 Disconnect the positive cable s and re move the battery from the boat 4 Clean maintain and store the battery according to the manufacture...

Page 68: ...aha dealer Q Is shift lever in gear A Shift to neutral Engine will not start starter operates Q Is fuel tank empty A Fill tank with clean fresh fuel Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is fuel filter clogged A Clean or replace filter Q Is starting procedure incorrect A See page 33 Q Has fuel pump malfunctioned A Have serviced by a Yamaha dealer Q Are spark plug s fo...

Page 69: ...er Q Is air vent screw on fuel tank closed A Open air vent screw Q Is choke knob pulled out A Return to home position Q Is motor angle too high A Return to normal operating position Q Is carburetor clogged A Have serviced by a Yamaha dealer Q Is fuel joint connection incorrect A Connect correctly Q Is throttle valve adjustment incorrect A Have serviced by a Yamaha dealer Q Is battery cable disconn...

Page 70: ...g s Clean or replace with recommended type Q Are weeds or other foreign matter tangled on gear housing A Remove foreign matter and clean lower unit Q Is fuel system obstructed A Check for pinched or kinked fuel line or other obstructions in fuel system Q Is fuel filter clogged A Clean or replace filter Q Is fuel contaminated or stale A Fill tank with clean fresh fuel Q Is spark plug gap incorrect ...

Page 71: ... Temporary action in emergency EMU29441 Impact damage WARNING EWM00870 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 an object in the wa ter follow the procedure below 1 Stop the engine immediately 2 Check the control system and all compo nents for damage Also check the boa...

Page 72: ...he cord dur ing normal operation Loss of engine power means the loss of most steering control Also without engine power the boat could slow rapidly This could cause people and objects in the boat to be thrown forward Make sure no one is standing behind you when pulling the starter rope It could whip behind you and injure someone An unguarded rotating flywheel is very dangerous Keep loose clothing ...

Page 73: ...s the engine warms up 6 Insert the knotted end of the emergency starter rope into the notch in the flywheel rotor and wind the rope several turns around the flywheel clockwise 7 Give a strong pull straight out to crank and start the engine Repeat if neces sary EMU33501 Treatment of submerged motor If the outboard motor is submerged immedi ately take it to a Yamaha dealer Otherwise some corrosion m...

Page 74: ...YAMAHA MOTOR CO LTD Printed on recycled paper Printed in Japan March 2010 0 2 1 69R 9 2A 1E0 book 1 ページ２０１０年２月３日水曜日午後５時１８分 ...

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