Yamaha 8D Page 35 Owner'S Manual Download | Manualshive

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Operation

30

3.

The shallow water lever will lock, sup-
porting the outboard motor in a partially
raised position.

4.

When lowering the outboard motor,
slightly tilt it up and push the shallow wa-
ter lever down. Slowly lower the out-
board motor to the normal position.

EMU28190

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 with
salt deposits.

NOTE:

For cooling system flushing instructions, see

page 31.

Cruising in turbid water

Yamaha strongly recommends that you use
the optional chromium-plated water pump kit
if you use the outboard motor in turbid (mud-
dy) water conditions.

ZMU02854

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Summary of Contents for 8D

Page 1: ...8D OWNER S MANUAL 6M8 F8199 18 U S A Edition LIT 18626 05 81 ...

Page 2: ...EMU25060 ZMU01690 Read this owner s manual carefully before operating your outboard motor ...

Page 3: ...t board motor CAUTION ECM00700 A CAUTION indicates special precautions that must be taken to avoid damage to the outboard motor NOTE A NOTE provides key information to make procedures easier or clearer Yamaha continually seeks advancements in product design and quality Therefore while this manual contains the most current prod uct information available at the time of print ing there may be minor d...

Page 4: ...ype 14 Operation 16 Installation 16 Mounting the outboard motor 16 Clamping the outboard motor 17 Breaking in engine 18 Gasoline and engine oil mixing chart 25 1 18 Procedure for pre mixed models 18 Preoperation checks 19 Fuel 19 Oil 19 Controls 19 Engine 19 Filling fuel and engine oil 19 Filling fuel for portable tank 19 Gasoline and oil mixing 100 1 20 Operating engine 20 Feeding fuel portable t...

Page 5: ...r 40 Removing the propeller 41 Installing the propeller 41 Changing gear oil 42 Cleaning fuel tank 42 Inspecting and replacing anode s 43 Checking top cowling 43 Coating the boat bottom 44 Trouble Recovery 45 Troubleshooting 45 Temporary action in emergency 48 Impact damage 48 Starter will not operate 48 Emergency starting engine 49 Treatment of submerged motor 50 Procedure 50 Consumer information...

Page 6: ...ence in case your outboard motor is sto len EMU25220 Emission control information EMU25230 North American models This engine conforms to U S Environmental Protection Agency EPA regulations for ma rine SI engines See the label affixed to your engine for details EMU30390 Approval label of emission control certif icate This label is attached to the bottom cowling Existing Technology N A EMU25261 Manu...

Page 7: ...swimmers should always wear PFDs and everyone should wear PFDs when there are potentially hazardous boating condi tions Gasoline is highly flammable and its va pors are flammable and explosive Handle and store gasoline carefully Make sure there are no gas fumes or leaking fuel be fore starting the engine This product emits exhaust gases which contain carbon monoxide a colorless odorless gas which ...

Page 8: ...lications and information can be obtained from many organizations including the fol lowing United States Coast Guard Consumer Affairs Staff G BC Office of Boating Public and Consumer Af fairs U S Coast Guard Headquarters Washington D C 20593 0001 Boating Safety Hotline 1 800 368 5647 National Marine Manufacturers Associa tion NMMA 401 N Michigan Ave Chicago Il 60611 Marine Retailers Association of...

Page 9: ...peed except to avoid an immediate collision When you maintain your direction and speed the other vessel will be able to determine how best to avoid you Give way vessel The vessel which does not have the right of way has the duty to take positive and timely action to stay out of the way of the Stand On vessel Normally you should not cross in front of the vessel with the right of way You should slow...

Page 10: ...d maintain course and direc tion provided the other vessel gives you the right of way as it should Overtaking If you are passing another vessel you are the Give Way vessel This means that the other vessel is expected to maintain its course and speed You must stay out of its way until you are clear of it Likewise if an other vessel is passing you you should maintain your speed and direction so that...

Page 11: ...al system of buoyage Simply put buoys and markers have an arrangement of shapes colors numbers and lights to show which side of the buoy a boater should pass on when navigat ing in a particular direction The markings on these buoys are oriented from the perspec tive of being entered from seaward the boat er is going towards the port This means that red buoys are passed on the starboard right side ...

Page 12: ... FLAMMABLE AND EXPLOSIVE Do not smoke when refueling and keep away from sparks flames or other sources of ignition Stop engine before refueling Refuel in a well ventilated area Refuel portable fuel tanks off the boat Take care not to spill gasoline If gaso line spills wipe it up immediately with ZMU01708 ...

Page 13: ... Engine oil If the recommended engine oil is not avail able another 2 stroke engine oil with an NMMA certified TC W3 rating may be used EMU25741 Propeller selection The performance of your outboard motor will be critically affected by your choice of propel ler as an incorrect choice could adversely affect performance and could also seriously damage the motor Engine speed depends on the propeller s...

Page 14: ...e setting to maintain the engine in the proper operating range For instructions on propeller removal and in stallation see page 40 EMU25770 Start in gear protection Yamaha outboard motors or Yamaha 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 engi...

Page 15: ...rvoir and must not be used as a fuel storage container Com mercial users should conform to relevant licensing or approval authority regula 1 3 4 5 2 6 16 7 8 9 10 11 12 14 15 13 ZMU04490 1 Manual starter handle 2 Engine stop button Engine stop lanyard switch 3 Choke knob 4 Throttle grip 5 Throttle friction adjuster 6 Clamp screw 7 Cooling water inlet 8 Anti cavitation plate 9 Trim rod 10 Shallow w...

Page 16: ... To loosen the screw turn it counterclockwise EMU25911 Tiller handle To change direction move the tiller handle to the left or right as necessary EMU25921 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 Throttle grip The throt...

Page 17: ...s desired tighten the adjuster to maintain the desired throttle set ting EMU25990 Engine stop lanyard switch The lock plate must be attached to the en gine stop switch for the engine to run The lanyard should be attached to a secure place on the operator s clothing or arm or leg Should the operator fall overboard or leave the helm the lanyard will pull out the lock plate stopping ignition to the e...

Page 18: ...l mix ture required to start pull out this knob EMU26070 Manual starter handle 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 EMU26121 Steering friction adjuster A friction device provides adjustable resis tance to the steering mechanism and can be set according to operator preference ...

Page 19: ... to the transom EMU26280 Shallow water lever Pushing this lever down will tilt the motor up partially to provide more clearance when op erating in shallow water EMU26320 Tilt support knob To keep the outboard motor in the tilted up position push the tilt support knob under the swivel bracket EMU26371 Top cowling lock lever s turn type To remove the engine top cowling turn the lock lever s and lift...

Page 20: ...Basic components 15 1 Top cowling lock lever s ZMU02862 1 ...

Page 21: ...ec tion is intended as reference only It is not possible to provide complete in structions for every possible boat and motor combination Proper mounting depends in part on experience and the specific boat and motor combination WARNING EWM00830 Improper mounting of the outboard mo tor could result in hazardous conditions such as poor handling loss of control or fire hazards Observe the following Fo...

Page 22: ...otor see page 25 EMU26970 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 EWM00640 Loose clamp screws could ...

Page 23: ...ngine oil mixing chart 25 1 CAUTION ECM00150 Be sure to mix gasoline and oil complete ly otherwise the engine may be dam aged EMU27071 Procedure for pre mixed models Run the engine under load in gear with a propeller installed as follows 1 First 10 minutes Run the engine at the lowest possible speed A fast idle in neutral is best 2 Next 50 minutes Do not exceed half throttle approxi mately 3000 r ...

Page 24: ... Be sure the fuel tank is positioned on a se cure flat surface and that the fuel line is not twisted or flattened or likely to contact sharp objects if equipped Yamaha fuel tank or boat tank EMU27120 Oil Check to be sure you have plenty of oil for your trip EMU27130 Controls Check throttle shift and steering for prop er operation before starting the engine The controls should work smoothly with ou...

Page 25: ...ting engine EMU27461 Feeding fuel portable tank WARNING EWM00420 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...

Page 26: ...nnot be drawn from the fuel tank 4 Squeeze the primer pump with the outlet end up until you feel it become firm EMU27490 Starting engine EMU27505 Manual start models tiller control 1 Place the gear shift lever in neutral NOTE The start in gear protection device prevents the engine from starting except when in neu tral 2 Attach the engine stop switch lanyard to a secure place on your clothing or yo...

Page 27: ...ard 3 Place the throttle grip in the start position 4 Pull out turn the choke knob fully After the engine starts replace return the knob to the home position NOTE 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 resi...

Page 28: ... cooling water pilot hole CAUTION ECM00510 A flow of water from the hole on the ex haust cover shows that the water pump is pumping water through the cooling pas sages If water is not flowing out of the hole at all times while the engine is run ning overheating and serious damage could occur Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole...

Page 29: ...e throttle grip in the fully closed position 2 On models equipped with a tilt lock le ver check that it is in the lock down po sition 3 Move the gear shift lever quickly and firmly from neutral to reverse Remote control models 1 Check that the tilt lock lever is in the lock position 2 Pull up the neutral interlock trigger if equipped and move the remote control lever quickly and firmly from neutra...

Page 30: ...e 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 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 WARNING EWM0074...

Page 31: ...t works best for your boat and operating conditions 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 NOTE The outboard motor ...

Page 32: ...creasing fuel economy and making it hard to increase speed Oper ating with excessive trim in at higher speeds also makes the boat unstable Resistance at the bow is greatly increased heightening the danger of bow steering and making opera tion difficult and dangerous NOTE Depending on the type of boat the outboard motor trim angle may have little effect on the trim of the boat when operating EMU279...

Page 33: ...Otherwise water could run into the cylinder and cause damage The outboard motor cannot be tilted when in reverse or when the outboard motor is turned 180 facing the rear EMU27975 Procedure for tilting up manual tilt models 1 Place the gear shift lever in neutral 2 Disconnect the fuel line from the out board motor 3 Place the tilt lock lever if equipped in the release up position 4 Pull up the shal...

Page 34: ...uld cause the outboard motor to lift out of the water resulting in loss of control Do not rotate the outboard motor 180 and operate the boat in reverse Place the gear shift in reverse to operate the boat in reverse 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 Return the...

Page 35: ...l position EMU28190 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 with salt deposits NOTE For cooling system flushing instructions see page 31 Cruising in turbid water Yamaha strongly recommends that you use the optional chromium plated water pump kit if you use the outboa...

Page 36: ...em Choke valve Drive unit Gear positions Forward neutral reverse Gear ratio 2 08 27 13 Trim and tilt system Manual tilt Propeller mark N Fuel and oil Recommended fuel Regular gasoline Min pump octane 86 Recommended engine oil YAMALUBE 2 stroke outboard motor oil Fuel oil ratio Regular gasoline 100 1 Lubrication Pre mixed fuel and oil Recommended gear oil Hypoid gear oil SAE 90 Gear oil quantity 16...

Page 37: ...otor 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 removed from a boat keep the outboard motor in the attitude shown NOTE Place a towel or something similar under the outboard motor to protect it from damage EMU30272 Storing outb...

Page 38: ...e fresh water level is below the level of the anti cavitation plate or if the water supply is insufficient engine seizure may occur 6 Cooling system flushing is essential to prevent the cooling system from clog ging up with salt sand or dirt In addi tion fogging of the engine is mandatory to prevent excessive engine damage due to rust Perform the flushing and fogging at the same time WARNING EWM00...

Page 39: ...he cowling with a non abrasive wax such as Yamaha Silicone Wax Part No ACC 11000 15 02 EMU28450 Cleaning the outboard motor After use wash the exterior of the outboard motor with fresh water Flush the cooling system with fresh water NOTE For cooling system flushing instructions see page 31 EMU28460 Checking painted surface of motor Check the motor for scratches nicks or flak ing paint Areas with d...

Page 40: ...Replacement parts If replacement parts are necessary use only genuine Yamaha parts or parts of the same type and of equivalent strength and materi als Any part of inferior quality may malfunc tion and the resulting loss of control could endanger the operator and passengers Yamaha genuine parts and accessories are available from your Yamaha dealer ...

Page 41: ...use Item Actions Initial Every 10 hours 1 month 50 hours 3 months 100 hours 6 months 200 hours 1 year Anode s external Inspection replace ment Anode s internal Inspection replace ment Cooling water pas sages Cleaning Cowling clamp Inspection Fuel filter disposable Inspection replace ment Fuel system Inspection Fuel tank Yamaha por table tank Inspection cleaning Gear oil Change Greasing points Grea...

Page 42: ...insulator A damaged insulator could allow external sparks which could lead to explosion or fire The spark plug is an important 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 ...

Page 43: ...le 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 EMU28961 Checking fuel system WARNING EWM00900 Gasoline and its vapors are highly flam mable and explosive Keep away from sparks cigarettes flames or other sources of ignition WARNING EWM00910 ...

Page 44: ... boat could unexpectedly start to move which could result in an accident CAUTION ECM00490 This procedure must be performed while the outboard motor is in the water A flushing attachment or test tank can be used A diagnostic tachometer should be used for this procedure Results may vary depending on whether testing is conducted with the flushing attachment in a test tank or with the outboard motor i...

Page 45: ...ed if the en gine accidentally starts when you are near the propeller Before inspecting removing or install ing the propeller remove the spark plug caps from the spark plugs Also place the shift control in neutral turn the main switch to off and re move the key and remove the lanyard from the engine stop switch Turn off the battery cut off switch if your boat has one Do not use your hand to hold t...

Page 46: ...ropeller otherwise the lower case and propeller boss could be damaged Be sure to use a new cotter pin and bend the ends over securely Otherwise the propeller could come off during op eration 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 and propeller on the propeller shaft 3 Install the spacer if equi...

Page 47: ...ing it 4 Remove the oil level plug to allow the oil to drain completely CAUTION ECM00710 Inspect the used oil after it has been drained If the oil is milky water is getting into the gear case which can cause gear damage Consult a Yamaha dealer for re pair of the lower unit seals NOTE For disposal of used oil consult your Yamaha dealer 5 With the outboard motor in a vertical po sition and using a f...

Page 48: ...olding 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 cleaning sol vent Allow the filter to dry 5 Replace the gasket with a new one Re install the fuel joint assembly and tighten the screws firmly EMU29312 Inspecting and replacing anode s Yamaha outboard motors are protected from corrosion by sacrificial anodes Insp...

Page 49: ...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 ZMU02882 ZMU01943 ...

Page 50: ...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 21 Q Has fuel pump malfunctioned A Have serviced by a Yamaha deal...

Page 51: ...p damaged A Have serviced 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 ...

Page 52: ...g s fouled or of incorrect 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 w...

Page 53: ...lering 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 harbor slowly and careful ly 4 Have a Yamaha dealer inspect the out board motor b...

Page 54: ...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 EMU29561 Emergency starting engine 1 Remove the top cowling 2 Remove the start in...

Page 55: ...gin almost immedi ately If you cannot immediately take the outboard motor to a Yamaha dealer follow the proce dure below in order to minimize engine dam age EMU29771 Procedure 1 Thoroughly wash away mud salt sea weed and so on with fresh water 2 Remove the spark plugs and face the spark plug holes downward to allow any water mud or contaminants to drain 3 Drain the fuel from the carburetor fuel fi...

Page 56: ...Trouble Recovery 51 5 Take the outboard motor to a Yamaha dealer as soon as possible CAUTION ECM00400 Do not attempt to run the outboard motor until it has been completely inspected ...

Page 57: ...52 Consumer information EMU29811 Important warranty information for U S A and Canada ...

Page 58: ...Consumer information 53 ...

Page 59: ...Consumer information 54 EMU29820 YAMAHA MOTOR CORPORATION U S A OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY ...

Page 60: ...Consumer information 55 ...

Page 61: ...Consumer information 56 ...

Page 62: ...Consumer information 57 EMU29840 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U S A OR CANADA ...

Page 63: ...Printed in France April 2004 0 5 1 ...

Page 64: ...Warranty card 12 6 01 7 40 PM Page 1 ...

Page 65: ...Warranty card 12 6 01 7 40 PM Page 2 ...

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