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Trouble Recovery

54

EMU29427

Troubleshooting

A problem in the fuel, compression, or ignition
systems can cause poor starting, loss of pow-
er, or other problems. This section describes
basic checks and possible remedies, and cov-
ers 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-alert indicator is flashing,
consult your Yamaha dealer.

Starter will not operate.

Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of rec-
ommended capacity.

Q. Are battery connections loose or corrod-
ed?
A. Tighten battery cables and clean battery
terminals.

Q. Is fuse for electric start relay or electric cir-
cuit blown?
A. Check for cause of electric overload and
repair. Replace fuse with one of correct am-
perage.

Q. Are starter components faulty?
A. Have serviced by a Yamaha 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 32.

Q. Has fuel pump malfunctioned?
A. Have serviced by a Yamaha dealer.

Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace with
recommended type.

Q. Are spark plug cap(s) fitted incorrectly?
A. Check and re-fit cap(s).

Q. Is ignition wiring damaged or poorly con-
nected?
A. Check wires for wear or breaks. Tighten all
loose connections. Replace worn or broken
wires.

Q. Are ignition parts faulty?
A. Have serviced by a Yamaha dealer.

Q. Is engine shut-off cord (lanyard) not at-
tached?
A. Attach cord.

Q. Are engine inner parts damaged?
A. Have serviced by a Yamaha dealer.

Engine idles irregularly or stalls.

Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace with
recommended type.

Q. Is fuel system obstructed?

U6E028E0.book Page 54 Tuesday, February 10, 2009 3:19 PM

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Содержание 5C

Страница 1: ...Read this manual carefully before operating this outboard motor OWNER S MANUAL 4AC 5C 6E0 28199 28 E0 U6E028E0 book Page 1 Tuesday February 10 2009 3 19 PM...

Страница 2: ...refully 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 U6E028E0 book Page 1 Tuesday Februa...

Страница 3: ...discrepancies between your machine and this manual If there is any question concerning this manual please con sult your Yamaha dealer To ensure long product life Yamaha recom mends that you use the pr...

Страница 4: ...t 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 Mo...

Страница 5: ...l tilt models 40 Shallow water 40 Cruising in shallow water manual tilt models 40 Cruising in other conditions 41 Maintenance 42 Transporting and storing outboard motor 42 Clamp screw mounting models...

Страница 6: ...e boat from running away under power and leaving peo ple stranded or running over people or ob jects Always attach the engine shut off cord to a secure place on your clothing or your arm or leg while...

Страница 7: ...in neutral Stop the engine when a person is in the water near you EMU33751 Passengers Consult your boat manufacturer s instructions for details about appropriate passenger loca tions in your boat and...

Страница 8: ...tle and turn in anoth er direction EMU33790 Weather Stay informed about the weather Check weather forecasts before boating Avoid boat ing in hazardous weather EMU33880 Passenger training Make sure at...

Страница 9: ...r tions of the European Parliament directive re lating to machinery Each conformed outboard motor accompa nied with EC DoC EC DoC contains the fol lowing information Name of Engine Manufacture Model n...

Страница 10: ...General information 5 1 C Tick label location ZMU01697 U6E028E0 book Page 5 Tuesday February 10 2009 3 19 PM...

Страница 11: ...ls supplied with the boat Read all labels on the outboard motor and the boat If you need any additional information contact your Yamaha dealer EMU33831 Warning labels If these labels are damaged or mi...

Страница 12: ...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...

Страница 13: ...ent screw when not in use EMU33843 Symbols The following symbols mean as follows Notice Warning Read Owner s Manual Hazard caused by continuous rotation Electrical hazard Remote control lever gear shi...

Страница 14: ...General information 9 Engine start Engine cranking ZMU05668 U6E028E0 book Page 9 Tuesday February 10 2009 3 19 PM...

Страница 15: ...0 r min 5CMH 3 7 kW 5000 r min 5 HP 5000 r min Idling speed in neutral 1150 50 r min Engine Type 2 stroke S Displacement 4ACMH 83 0 cm 5CMH 103 0 cm Bore stroke 4ACMH 50 0 42 0 mm 1 97 1 65 in 5CMH 54...

Страница 16: ...ent and complete rigging in structions For further information see page 21 EMU25694 Battery requirements EMU25730 Without a rectifier or Rectifier Regula tor NOTICE ECM01090 A battery cannot be connec...

Страница 17: ...vail able another 2 stroke engine oil with an NMMA certified TC W3 rating may be used EMU36360 Fuel requirements EMU36771 Gasoline Use a good quality gasoline that meets the minimum octane rating If k...

Страница 18: ...can be coated with an anti fouling 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 corros...

Страница 19: ...ver 5 Steering friction adjuster 6 Anti cavitation plate 7 Propeller 8 Cooling water inlet 9 Trim rod 10 Clamp bracket 11 Clamp screw 12 Tiller handle 13 Throttle friction adjuster 14 Manual starter h...

Страница 20: ...approval authority regula tions 1 Air vent screw 2 Fuel tank cap 3 Top cowling 4 Cowling lock lever 5 Steering friction adjuster 6 Anti cavitation plate 7 Propeller 8 Cooling water inlet 9 Trim rod 10...

Страница 21: ...d with fuel To remove the cap turn it counterclockwise EMU25860 Air vent screw This screw is on the fuel tank cap To loosen the screw turn it counterclockwise EMU25872 Fuel cock The fuel cock turns on...

Страница 22: ...en position These are the normal running positions EMU25911 Tiller handle To change direction move the tiller handle to the left or right as necessary EMU25922 Gear shift lever Pulling the gear shift...

Страница 23: ...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...

Страница 24: ...ould become entangled preventing it from functioning Avoid acci dentally pulling the cord during normal operation Loss of engine power means the loss of most steering control Also without engine power...

Страница 25: ...he outboard motor in relation to the transom EMU26332 Tilt support bar The tilt support bar keeps the outboard motor in the tilted up position NOTICE ECM01660 Do not use the tilt support bar when trai...

Страница 26: ...n experienced in proper outboard motor mounting should show you how to mount your out board motor The outboard motor should be mounted so that the boat is well balanced Otherwise the boat could be har...

Страница 27: ...rd motor see page 36 EMU26972 Clamping the outboard motor 1 Place the outboard motor on the transom so that it is positioned as close to the cen ter as possible Tighten the transom clamp screws evenly...

Страница 28: ...sed 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 U6E028E0 book Page 23 Tue...

Страница 29: ...onto plane then immediately reduce the throttle to 3000 r min or less 3 Next two hours Accelerate at full throttle onto plane then reduce engine speed to three quarter throttle approximately 4000 r mi...

Страница 30: ...plosion Check for fuel leakage regularly If any fuel leakage is found the fuel sys tem must be repaired by a qualified me chanic Improper repairs can make the outboard unsafe to operate EMU36451 Check...

Страница 31: ...with both hands If the top cowling is loose have it repaired by your Yamaha dealer EMU27234 Filling fuel and engine oil EMU27247 Filling fuel for portable tank WARNING EWM01830 Gasoline and its vapors...

Страница 32: ...t in tank WARNING EWM01950 Be sure the outboard motor is securely fastened to the transom or a stable stand WARNING EWM01830 Gasoline and its vapors are highly flam mable and explosive Always refuel a...

Страница 33: ...cap securely 10 Wipe up any spilled gasoline immediately with dry rags Dispose rags properly ac cording to local laws or regulations EMU27406 Gasoline and oil mixing 100 1 NOTICE ECM00811 Avoid using...

Страница 34: ...mix the fuel thor oughly 4 Make sure that the oil and gasoline are mixed 5 Pour the gasoline and oil mixture into the built in fuel tank TIP If using a permanently installed tank pour the oil graduall...

Страница 35: ...h could cause brain damage or death when inhaled Symp toms include nausea dizziness and drowsiness Keep cockpit and cabin ar eas well ventilated Avoid blocking ex haust outlets 1 If there is an air ve...

Страница 36: ...ch contain carbon monoxide a colorless odorless gas which could cause brain damage or death when inhaled Symp toms include nausea dizziness and drowsiness Keep cockpit and cabin ar eas well ventilated...

Страница 37: ...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 the boat could slow r...

Страница 38: ...s to start after 4 or 5 tries open the throttle a small amount between 1 8 and 1 4 and try again Also if the engine is warm and fails to start open the throttle a same amount and try to start the engi...

Страница 39: ...utton and make sure the engine stops Confirm that removing the clip from the en gine shut off switch stops the engine Confirm that the engine cannot be started with the clip removed from the engine sh...

Страница 40: ...o reverse while 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...

Страница 41: ...ore 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 The trim angle of the outboard motor helps...

Страница 42: ...se loss of control TIP The outboard motor trim angle can be changed approximately 4 degrees by shifting the trim rod one hole EMU27911 Adjusting boat trim When the boat is on plane a bow up attitude r...

Страница 43: ...down Body parts can be crushed between the motor and the clamp bracket when the mo tor is trimmed or tilted WARNING EWM00230 Leaking fuel is a fire hazard Tighten the air vent screw and place the fue...

Страница 44: ...use the tilt support bar when traile ring the boat The outboard motor could shake loose from the tilt support and fall If the motor cannot be trailered in the nor mal running position use an additiona...

Страница 45: ...11 Run the boat at the lowest possible speed when using the shallow water cruising system The tilt lock mecha nism does not work while the shallow water cruising system is being used Hit ting an under...

Страница 46: ...er 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 mudd...

Страница 47: ...ional support device to secure it in the tilt position The outboard motor should be trailered and stored in the normal running position If there is insufficient road clearance in this position then tr...

Страница 48: ...mage due to rust Perform the flushing and fog ging at the same time WARNING Do not touch or remove electrical parts when starting or during operation Keep hands hair and clothes away from the flywheel...

Страница 49: ...mechanical skills tools and supplies If you do not have the proper skills tools or supplies to perform a maintenance procedure have a Yamaha dealer or other qualified mechan ic do the work The procedu...

Страница 50: ...n op erating the engine under adverse conditions such as extended trolling Disassembly or repairs may be necessary depending on the outcome of maintenance checks Expendable or consumable parts and lub...

Страница 51: ...nspection 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 ca ble throttl...

Страница 52: ...amaha grease A water resistant grease Yamaha grease D corrosion resistant grease for propeller shaft 4AC 5C Item Actions Every 1000 hours Exhaust guide exhaust manifold Inspection or replace ment as n...

Страница 53: ...damaged insulator could allow exter nal sparks which could lead to explo sion or fire EWM00561 3 Be sure to use the specified spark plug otherwise the engine may not operate properly Before fitting th...

Страница 54: ...or the idle speed requires adjustment consult a Yamaha dealer or other qualified mechanic EMU29113 Checking wiring and connectors Check that each connector is engaged se curely Check that each ground...

Страница 55: ...st 1 Apply Yamaha marine grease or a corro sion resistant grease to the propeller shaft 2 Install the spacer if equipped thrust washer and propeller on the propeller shaft NOTICE Be sure to install th...

Страница 56: ...blem Consult 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 remov...

Страница 57: ...ully Im proper assembly can result in a fuel leak which could result in a fire or ex plosion hazard Dispose of old gasoline according to lo cal regulations 1 Empty the fuel tank into an approved con t...

Страница 58: ...the surfaces of the anodes Consult a Yamaha dealer for replacement of external anodes NOTICE ECM00720 Do not paint anodes as this would render them ineffective TIP Inspect ground leads attached to ex...

Страница 59: ...ift 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 I...

Страница 60: ...crew 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 servi...

Страница 61: ...h 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 oth e...

Страница 62: ...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 Inspect the control system and all compo nents for damage Also in...

Страница 63: ...e 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 EMU29562 Emergency star...

Страница 64: ...ard motor is submerged immedi ately take it to a Yamaha dealer Otherwise some corrosion may begin almost immediate ly NOTICE Do not attempt to run the out board motor until it has been completely insp...

Страница 65: ...U6E028E0 book Page 60 Tuesday February 10 2009 3 19 PM...

Страница 66: ...YAMAHA MOTOR CO LTD Printed on recycled paper Printed in Japan March 2009 0 3 1 CR U6E028E0 book Page 1 Tuesday February 10 2009 3 19 PM...

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