Yamaha 30DMH Owner'S Manual Download | Manualshive

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General information

7

EMU35132

Symbols

The following symbols mean as follows.

Notice/Warning

Read Owner’s Manual

Hazard caused by continuous rotation

Electrical hazard

ZMU05696

ZMU05664

ZMU05665

ZMU05666

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Summary of Contents for 30DMH

Page 1: ...q q q q Read this manual carefully before operating this outboard motor OWNER S MANUAL 30D 6J8 28199 2G E0 ...

Page 2: ...EMU25052 Read this 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 ...

Page 3: ...ime of print ing there may be minor discrepancies 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 negle...

Page 4: ...er 10 Anti fouling paint 10 Motor disposal requirements 11 Emergency equipment 11 Components 12 Components diagram 12 Fuel tank 12 Fuel joint 13 Fuel gauge 13 Fuel tank cap 13 Air vent screw 13 Tiller handle 13 Gear shift lever 13 Throttle grip 13 Throttle indicator 14 Throttle friction adjuster 14 Engine shut off cord lanyard and clip 14 Engine stop button 15 Choke knob for pull type 15 Manual st...

Page 5: ...allow water 37 Cruising in shallow water manual tilt models 37 Cruising in other conditions 38 Maintenance 40 Transporting and storing outboard motor 40 Clamp screw mounting models 40 Storing outboard motor 40 Procedure 41 Lubrication 42 Cleaning the outboard motor 42 Checking painted surface of motor 42 Periodic maintenance 42 Replacement parts 43 Severe operating conditions 43 Maintenance chart ...

Page 6: ...off cord so that the engine 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 clot...

Page 7: ... the water near the boat shift into neutral and shut off the motor Stay away from swimming areas Swimmers can be hard to see The propeller can keep moving even when the motor is in neutral Shut off the engine when a person is in the water near you EMU33750 Passengers Consult your boat manufacturer s instruc tions for details about appropriate passenger locations in your boat and be sure all pas se...

Page 8: ...uce the ability to steer If you are not sure 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 EMU3389...

Page 9: ...racket 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 sto len EMU25213 C Tick label Engines affixed with this label conform to certain portion s of the Australian Radio Communications Act 1 Outboard motor serial number location 1 C Tick label location ZMU04912 1 ZMU01697 ...

Page 10: ...r Read this manual Read any 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 EMU33831 Warning labels If these labels are damaged or missing contact your Yamaha dealer for replacements ZMU06197 2 3 1 ...

Page 11: ...RNING EWM01681 Keep hands 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 preve...

Page 12: ...General information 7 EMU35132 Symbols The following symbols mean as follows Notice Warning Read Owner s Manual Hazard caused by continuous rotation Electrical hazard ZMU05696 ZMU05664 ZMU05665 ZMU05666 ...

Page 13: ...min Maximum output 22 1 kW 5000 r min 30 HP 5000 r min Idling speed in neutral 750 50 r min Engine Type 2 stroke L Displacement 496 0 cm3 Bore stroke 59 5 59 5 mm 2 34 2 34 in Ignition system CDI Spark plug with resistor NGK BR7HS 10 Spark plug gap 0 9 1 0 mm 0 035 0 039 in Control system Tiller Starting system Manual Starting carburetion system Choke valve Alternator output 80 W Drive unit Gear p...

Page 14: ...ne of the most important purchasing decisions a boater can make The type size and design of your propeller have a direct impact on acceleration top speed fuel economy and even engine life Yamaha designs and manufactures propel lers for every Yamaha outboard motor and every application Your outboard motor came with a Yamaha propeller chosen to perform well over a range of applications but there may...

Page 15: ... containers Gasohol There are two types of gasohol gasohol con taining ethanol E10 and that containing methanol Ethanol can be used if the ethanol content does not exceed 10 and the fuel meets the minimum octane ratings All etha nol blends containing more than 10 etha nol can cause fuel system damage or cause engine starting and running problems Yamaha does not recommend gasohol con taining methan...

Page 16: ... EMU36351 Emergency equipment Keep the following items onboard in case there is trouble with the motor A tool kit with assorted screwdrivers pli ers wrenches including metric sizes and electrical tape Waterproof flashlight with extra batteries An extra engine shut off cord lanyard with clip Spare parts such as an extra set of spark plugs Consult your Yamaha dealer for details ...

Page 17: ...rvoir and must not be used as a fuel storage container Com mercial users should conform to relevant 1 3 6 7 4 5 2 11 12 10 14 15 18 16 13 9 8 17 19 ZMU04847 1 Top cowling 2 Top cowling lock lever 3 Anti cavitation plate 4 Trim tab anode 5 Propeller 6 Cooling water inlet 7 Trim rod 8 Manual starter handle 9 Engine stop button Engine shut off switch 10 Alert indicator 11 Gear shift lever 12 Throttle...

Page 18: ...the fuel tank cap To loosen the screw turn it counterclockwise 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 lever towards you puts the engine in forward gear so that the boat moves ahead Pushing the lever away from you puts the engine in reverse gear so that the boat moves astern EMU25941 Thrott...

Page 19: ...n the adjuster to maintain the desired throttle set ting EMU25993 Engine shut off cord lanyard and clip The clip must be attached to the engine shut off switch for the engine to run The cord 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 cord will pull out the clip stopping ignition to the engine This will prev...

Page 20: ...dle To start the engine first gently pull the han dle out until resistance is felt From that posi tion then pull the handle straight out quickly to crank the engine EMU26122 Steering friction adjuster A friction device provides adjustable resis tance to the steering mechanism and can be set according to operator preference An ad justing screw or bolt is located on the swivel bracket 1 Clip 2 Cord ...

Page 21: ...ng 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 starboard side turn the trim tab end to the starboard side B in the figure NOTICE ECM00840 The trim tab also serves as an anode to protect the engine from electroc...

Page 22: ...er to the swivel bracket NOTICE ECM00660 Do not use the tilt support lever 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 EMU26372 Top cowling lock lever s turn type To remove the engine top cowling turn the lock ...

Page 23: ...Components 18 EMU26303 Alert indicator If the engine develops a condition which is cause for alert the indicator lights up For details on how to read the alert indicator see page 20 ZMU04911 ...

Page 24: ...t indicator If the engine temperature rises too high this indicator will light up For further information on reading the indicator see page 20 NOTICE ECM00052 Do not continue to run the engine if the overheat alert indicator is on Serious en gine damage will occur ZMU04911 ...

Page 25: ... temperature rises too 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...

Page 26: ...rigging should mount the motor EMU33470 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 EMU26921 Mounting height To run your boat at optimum efficiency the water resistance drag of the boat and out board motor must be...

Page 27: ...g height Consult your Yamaha dealer or boat man ufacturer for further information on deter mining the proper mounting height For instructions on setting the trim angle of the outboard motor see page 34 EMU26971 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 Occa...

Page 28: ...consult your Yamaha dealer 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 se curely After tightening test run the engine and check their tightness EWM00651 1 Bolts ZMU02013 ZMU03811 1 ...

Page 29: ...e to 3000 r min or less 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...

Page 30: ...a qualified mechanic Improper repairs can make the outboard unsafe to operate EMU36450 Check for fuel leaks Check under top cowling and in the boat for fuel leaks or gasoline fumes Check fuel line connections to be sure they are tight Check fuel lines for cracks swelling or other damage EMU37320 Check the fuel filter Check that the fuel filter is clean and free of water If any water is found in th...

Page 31: ...an damage the engine or the cowling can blow off at high speeds ECM01990 After installing check the fitting of the top cowling by pushing it with both hands If the top cowling is loose have it repaired by your Yamaha dealer EMU27234 Filling fuel and engine oil EMU27246 Filling fuel for portable tank WARNING EWM01830 Gasoline and its vapors are highly flam mable and explosive Always refuel ac cordi...

Page 32: ...g to local laws or regulations EMU27406 Gasoline and oil mixing 100 1 NOTICE ECM00811 Avoid using any oil other than the spec ified type Use a thoroughly blended fuel oil mix ture If the mixture is not thoroughly mixed or if the mixing ratio is incorrect the following problems could occur Low oil ratio Lack of oil could cause major engine trouble such as piston seizure High oil ratio Too much oil ...

Page 33: ...M00420 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 When the 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 th...

Page 34: ...U27508 Manual start models tiller control 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 the cord where it could become entangled pre venting it from functioning...

Page 35: ...tarts replace return the knob to the home position TIP It is not necessary to use the choke when starting a warm engine If the choke knob is left in the start position while the engine is running the engine will run poorly or stall 5 Pull the manual starter handle slowly un til you feel resistance Then give a strong pull straight out to crank and start the engine Repeat if necessary 6 After the en...

Page 36: ...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 Check that no water leaks from the joints be tween the exhaust cover cylinder head and body cylinder EMU27670 Warming up engine ...

Page 37: ...shift to neutral then restart the engine and allow it to warm up To shift out of neutral 1 Move the gear shift lever firmly and crisply forward for forward gear or backward for reverse gear Be sure to check that the tilt lock lever is in the lock down position if equipped before oper ating in reverse To shift from in gear forward reverse to neutral 1 Close the throttle so that the engine slows to ...

Page 38: ...e 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 for a few minutes at idle or low speed Stop ping the engine immediately after operating at high speed is not recommended EMU27833 Procedure 1 Push and hold the engine stop button until the engine comes to a complete stop 2 After ...

Page 39: ...elps 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 strain on the engine Correct trim angle depends upon the combination of boat engine and propeller Correct trim is also affected by variables such as the load in the boat sea conditions and running speed EMU27872 Adjusting trim angle for manual tilt model...

Page 40: ... is on plane a bow up attitude results in less drag greater stability and effi ciency This is generally when the keel line of the boat is up about 3 to 5 degrees With the bow up the boat may have a greater tenden cy to steer to one side or the other Compen sate for this as you steer The trim tab can also be adjusted to help offset this effect When the bow of the boat is down it is easier to accele...

Page 41: ...ts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted WARNING EWM00250 Leaking fuel is a fire hazard If there is a fuel joint on the outboard motor discon nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes Otherwise fuel may leak NOTICE ECM00241 Before tilting the outboard motor stop the engine by following the...

Page 42: ...d motor up slightly and pull out the tilt support knob or re turn the tilt support lever 3 Slowly tilt the outboard motor down 4 Place the tilt lock lever in the lock posi tion EMU28061 Shallow water EMU28073 Cruising in shallow water manual tilt models WARNING EWM01781 Run the boat at the lowest possible speed when using the shallow water cruising system The tilt lock mecha nism does not work whi...

Page 43: ...board motor up until the plate turns completely 4 To return the outboard motor to the nor mal running position place the gear shift lever in neutral then slightly tilt the out board motor up Set the tilt lock lever and shallow water lever to the lock posi tion and slowly tilt the outboard motor down EMU28194 Cruising in other conditions Cruising in salt water After operating in salt water flush th...

Page 44: ...ou use the outboard motor in acidic water or water with a lot of sediment in it such as muddy or turbid cloudy water After operating in such water flush the cool ing passages with fresh water to prevent cor rosion Also rinse the outside of the outboard motor with fresh water ...

Page 45: ...t position The outboard motor should be trailered and stored in the normal running position If there is insufficient road clearance in this position then trailer the outboard motor in the tilt po sition using a motor support device such as a transom saver bar Consult your Yamaha dealer for further details EMU28235 Clamp screw mounting models When transporting or storing the outboard motor while re...

Page 46: ...vel of the anti cavita tion plate or if the water supply is in sufficient engine seizure may occur ECM00291 5 Cooling system flushing is essential to prevent the cooling system from clog ging up with salt sand or dirt In addi tion fogging lubricating of the engine is mandatory to prevent excessive engine damage due to rust Perform the flush ing and fogging at the same time WARNING Do not touch or ...

Page 47: ...gging oil and procedures for your engine EMU28450 Cleaning the outboard motor After use wash the exterior of the outboard motor with fresh water Flush the cooling system with fresh water TIP For cooling system flushing instructions see page 40 EMU28460 Checking painted surface of motor Check the motor for scratches nicks or flak ing paint Areas with damaged paint are more likely to corrode If nece...

Page 48: ...peed rpm for many hours Operating continuously at a low engine speed rpm for many hours Brief periods of rapid acceleration and de celeration followed by engine shut off be fore the engine has reached proper operating temperature Frequent quick acceleration and decelera tion Frequent shifting Frequently starting and stopping the en gine s Operation that fluctuates often between light and heavy car...

Page 49: ...ne should be flushed with clean water 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 repla...

Page 50: ...ug s Inspection or replace ment as necessary Spark plug caps high tension cords 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 Water inlet Inspection Main switch stop switch choke switch Inspection or ...

Page 51: ...Maintenance 46 EMU34451 Maintenance chart 2 Item Actions Every 1000 hours Guide exhaust exhaust manifold Inspection or replace ment as necessary ...

Page 52: ...rtant engine com ponent 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 ...

Page 53: ...ug measure the electrode gap with a wire thickness gauge adjust the gap to spec ification if necessary 4 When fitting the plug wipe off any 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...

Page 54: ... speed re quires adjustment consult a Yamaha dealer or other qualified mechanic 2 Verify whether the idle speed is set to specification For idle speed specifica tions see page 8 EMU29112 Checking wiring and connectors Check that each grounding wire is properly secured Check that each connector is engaged se curely EMU32111 Checking propeller WARNING EWM01880 You could be seriously injured if the e...

Page 55: ...bend the ends over securely Otherwise the propeller could come off during opera tion and be lost 1 Apply Yamaha marine grease or a cor rosion 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 Be sure to install the thrust washer before installing the propeller other wise the lower case and propelle...

Page 56: ...quantity of metal particles on the magnetic 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 NO TICE Inspect...

Page 57: ...esult in a fire or ex plosion 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...

Page 58: ...ance 53 them ineffective TIP Inspect ground leads attached to external anodes on equipped models Consult a Yamaha dealer for inspection and replace ment of internal anodes attached to the pow er unit ZMU02924 ...

Page 59: ...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 29 Q Has fuel pump malfunctioned A Have serviced by a Yamaha deal...

Page 60: ...erviced by a Yamaha dealer 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 ...

Page 61: ...type A Inspect spark plug 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 s...

Page 62: ... 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 Inspect the control system and all com ponents for damage Also inspect the boat for damage 3 Whether damage is found or not return to the nearest ha...

Page 63: ...e engine Use the emergency starter rope only as instructed Do not touch the fly wheel or other moving parts when the engine is running Do not install the starter mechanism or top cowling after the engine is running Do not touch the ignition coil spark plug wire spark plug cap or other elec trical components when starting or op erating the motor You could get an electrical shock EMU29562 Emergency ...

Page 64: ...lockwise 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 may begin almost immedi ately NOTICE Do not attempt to run the outboard motor until it has been com pletely inspected ECM00401 ZMU02928 ...

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Page 66: ...YAMAHA MOTOR CO LTD Printed on recycled paper Printed in Japan April 2008 0 2 1 ...

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