Yamahaメーカー9.9Aの使用説明書/サービス説明書
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9.9A/15A paper LIT -18626-04-53 9.9A 15A OWNER’S MANUAL U.S.A.Edition 63V-9-14 01.4.25 2:17 PM y[W 1 (2,1).
63V-9-14 01.4.25 2:17 PM y[W 2 (1,1).
Thank you for choosing a Yamaha out- board motor. This Owner’s manual con- tains information needed for proper oper- ation, maintenance and care. A thorough understanding of these simple instruc- tions will help you obtain maximum enjoyment from your new Yamaha.
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GENERAL INFORMA TION BASIC COMPONENTS OPERA TION MAINTENANCE TROUBLE RECOVERY INDEX CONTENTS READ THIS OWNER’S MANUAL CAREFULL Y BEFORE OPERA TING YOUR OUTBOARD MOTOR.
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E 2 3 4 5 6 EMB00010 Chapter 1 GENERAL INFORMA TION IDENTIFICATION NUMBERS RECORD ....................................................1-1 Outboard motor serial number...........1-1 EMISSION CONTROL INFORMATION ...1-2 SAFETY INFORMATION ...............
1-1 E EMU00005 IDENTIFICA TION NUMBERS RECORD EMU00007 OUTBOARD MOTOR SERIAL NUMBER The outboard motor serial number is stamped on the label attached to the port side of the clamp-bracket.
1-2 E q w 108015* EMU01385 EMISSION CONTROL INFORMA TION EMU01386 NORTH AMERICAN MODELS This engine conforms to U.S. Environ- mental Protection Agency (EPA) regula- tions for marine SI engines. See the label affixed to your engine for details. Approval label of Emission control certificate This label is attached to the bottom cowl- ing.
1-3 E 8 This product emits exhaust gases which contain carbon monoxide, a colorless, odorless gas which may cause brain damage or death when inhaled. Symp- toms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.
1-4 E 8 Be informed about boating safety. Addi- tional publications and information can be obtained from many organizations, including the following: United States Coast Guard Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Affairs U.
1-5 E EMB30010 IMPORT ANT LABELS WARNING LABELS 1 2 202012* q w WARNING This engine is equipped with a neutral starting device. The engine will not start unless the shift control is in neutral position. 6E0-83627-41 WARNING ● Be sure shift control is in neutral before starting engine.
1-6 E Stand-on Vessel The vessel with the right-of-way has the duty to continue its course and speed, 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.
1-7 E side. This rule doesn’t apply if both of you will clear one another if you continue on your set course and speed. Crossing When two power driven vessels are crossing each other’s path close enough to run the risk of collision, the vessel which has the other on the starboard (right) side must keep out of the way of the other.
1-8 E 1. When the sailing vessel is overtaking the power-driven vessel, the power- driven vessel has the right-of-way. 2. Sailing vessels should keep clear of any fishing vessel. 3. In a narrow channel, a sailing vessel should not hamper the safe passage of a power-driven vessel which can navigate only in such a channel.
1-9 E Remember, markings may vary by geo- graphic location. Always consult local boating authorities before driving your boat in unfamiliar waters. 1 1 1 A 1 1 1 Proceeding toward head of navigation from seaward CAN BUOY Odd number. Leave to port. OR SECONDARY CHANNEL BUOYS STARTS NEW NUMBERING SYSTEM old new C " 1 " NUN BUOY Even number.
1-10 E EMU00016 FUELING INSTRUCTIONS w GASOLINE AND ITS VAPORS ARE HIGH- LY FLAMMABLE AND EXPLOSIVE! 8 Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition. 8 Stop engine before refueling. 8 Refuel in a well-ventilated area.
1-11 E EMU00018 GASOLINE (PETROL) If knocking or pinging occurs, use a differ- ent brand of gasoline or premium unlead- ed fuel. If unleaded gasoline is not avail- able, then leaded regular gasoline can be used. EMU00027 Gasohol There are two types of gasohol: gasohol containing ethanol and that containing methanol.
1-12 E EMU01395 PROPELLER SELECTION The performance of your outboard motor will be critically affected by your choice of propeller, as an incorrect choice could adversely affect performance and could also seriously damage the motor. Engine speed depends on the propeller size and boat load.
1-13 E NOTE: At full throttle and under a maximum boat load, the engine’s rpm should be within the upper half of the full throttle operating range, as listed in “SPECIFICA- TIONS” on page 4-1.
EMC00010 Chapter 2 BASIC COMPONENTS MAIN COMPONENTS ..............................2-1 OPERATIONS OF CONTROLS AND OTHER FUNCTIONS ................................2-2 Fuel tank ................................................2-2 Gear shift lever .......
2-1 E 101022* 902063 902051* !9 !8 101232 !2 !1 !3 !5 !4 !6 u o y i !0 t !7 q w e r EMU01206 MAIN COMPONENTS 1 Top cowling 2 Cowling lock lever 3 Cooling water pilot hole 4 Tilt lock lever 5 Recoil st.
2-2 E q w r 902051 e EMC20010 OPERA TIONS OF CONTROLS AND OTHER FUNCTIONS EMC21012 FUEL TANK If your model was equipped with a portable fuel tank, its function is as fol- lows.
2-3 E EMC27011 ENGINE STOP BUTTON (for Tiller control model) Pushing this button opens the ignition cir- cuit and stops the engine. 407021* 407021 q w EMU00931 ENGINE STOP LANYARD SWITCH (for Tiller control model) The lock-plate 1 must be attached to the engine stop lanyard switch for the engine to run.
2-4 E EMC40010 THROTTLE CONTROL GRIP (for Tiller control model) The throttle control grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed.
2-5 E 503015 502011 EMC60010 TILLER HANDLE (for Tiller control model) Moving the tiller handle sideways to adjust the steering direction. EMC64010 Throttle Friction Adjustment (for Tiller control model) A friction device in the tiller handle pro- vides resistance to movement of the throttle grip.
2-6 E 408011 404013** EMD00010 STEERING FRICTION ADJUSTMENT (for Tiller control model) A friction device provides resistance to steering movement. This is adjustable for operator preference. An adjusting screw/bolt is located on the swivel bracket. To increase the resistance: Turn the adjusting screw/bolt clockwise.
EMD68010* CARRYING HANDLE The carrying handle is included between the clamp bracket. The carrying handle enables you to carry the outboard motor readily with one hand after setting it up. To set up the carrying handle, proceed as follows. 1) Place the tilt lock lever in the lock position.
EMF00010 Chapter 3 OPERA TION INSTALLATION ........................................3-1 Mounting the outboard motor ............3-2 Clamping the outboard motor ............3-4 FILLING FUEL AND ENGINE OIL ............3-5 Filling fuel ...................
3-1 E EMF10010 INST ALLA TION c C Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat or accessories such as transom ladders/depth finder trans- ducers) can create airborne water spray while the boat is cruising.
3-2 E EMU00176 MOUNTING THE OUTBOARD MOTOR w Improper mounting of the outboard motor could result in hazardous condi- tions such as poor handling, loss of con- trol, or fire hazards. Observe the follow- ing: 8 The information presented in this sec- tion is intended as reference only.
3-3 E w Overpowering a boat may cause severe instability. Do not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat.
3-4 E EMF14010 CLAMPING THE OUTBOARD MOTOR 1) Place the outboard on the transom so that it is positioned as close to the center as possible. Tighten the tran- som clamp screws evenly and secure- ly. Check the clamp-screws for tight- ness occasionally during operation of the motor as they can work loose due to engine vibration.
3-5 E FILLING FUEL AND ENGINE OIL EMF30010 FILLING FUEL 1) Remove the fuel tank cap. 2) Fill the fuel tank carefully. 3) Close the cap securely after refueling. Wipe up any spilled fuel. Ring Free Fuel Additive Gasoline is a precise blend of many differ- ent substances, each chosen to give cer- tain characteristics.
3-6 E EMF35010 GASOLINE (PETROL) AND OIL MIXING Pre-mix model 1) Pour oil and gasoline into the fuel tank, in that order. 1 Oil 2 Gasoline (Petrol) 2) Then mix the fuel thoroughly by shak- ing. 3) Make sure the oil is mixed with gaso- line . c C 8 Avoid using any oil other than the des- ignated type.
3-7 E NOTE: If using a permanently installed tank, pour the oil gradually as the fuel is being added to the tank. Mixing ratio 100 : 1 Gasoline (Petrol) Engine oil 0.01 L 0.12 L 0.14 L 0.24 L (0.01 US qt, (0.13 US qt, (0.15 US qt, (0.25 US qt, 0.01 Imp qt) 0.
3-8 E EMF43010 Controls 8 Check throttle, shift, and steering for proper operation before starting the engine. 8 The controls should work smoothly, without binding or unusual free play. 8 Look for loose or damaged connec- tions. 8 Check operation of the starter and stop switches when the outboard motor is in the water.
3-9 E EMU00226 Run the engine under load (in gear with a propeller installed) as follows. 1) First 10 minutes: Run the engine at the lowest possi- ble-speed. A fast idle in neutral is best. 2) Next 50 minutes: Do not exceed half throttle (approxi- mately 3,000 r/min).
3-10 E EMU01147 ST AR TING ENGINE w 8 Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you. 8 When the air vent screw is loosened, gasoline (petrol) vapor will be released.
3-11 E EMU00854 PROCEDURE FOR TILLER CONTROL MODEL 4) Place the gear-shift lever in the neu- tral position. NOTE: The start-in-gear protection device pre- vents the engine from starting except when in Neutral. 406042 N 503016 001105 6) Attach the engine stop switch lanyard to a secure place on your clothing, or your arm or leg.
3-12 E EMU00241* Manual Start Model 7) Pull out the choke knob completely when the engine is cold. After the engine starts, set the choke knob to the 2nd or 3rd position for warming up the cold engine. After warming up the engine, set the choke knob to the original position.
EMG00010-* W ARMING UP ENGINE 1) Before beginning operation, allow the engine to warm up at idling speed for 3 minutes. (Failure to do this will shorten engine life.
3-14 E EMG20111 SHIFTING w Before shifting, make sure there are no swimmers or obstacles in the water near you. c C To change the shifting position from for- ward to reverse or vice-versa, close the throttle first so that the engine idles (or runs at low speeds).
3-15 E EMG33210 REVERSE w When operating in Reverse, go slowly. Do not open the throttle more than half. Oth- erwise, the boat may become unstable, which could result in loss of control and an accident. 1) Place the throttle control grip in the fully closed position (for Tiller control model).
3-16 E EMG38010 STOPPING ENGINE Let it cool off for a few minutes at idle or low speed first. Stopping the engine immediately after operating at high speed is not recommended. EMU00275 1) Push and hold the engine stop button until the engine comes to a complete stop.
EMU01412 TRIMMING OUTBOARD MOTOR The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. The correct trim angle will help improve performance and fuel economy while reducing strain on the engine. The correct trim angle depends upon the combination of boat, engine, and propeller.
3-18 E EMU00951 Manual tilt model There are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim angle. 1) Stop the engine. 2) Remove the trim angle adjusting rod 1 from the clamp bracket while tilting the motor up slightly. 3) Reposition the rod in the desired hole.
EMG62010 Bow up When the boat is on plane, a bow-up atti- tude result in less drag, greater stability and efficiency. This is generally when the keel line of the boat is up about 3 to 5 degrees. When trimmed out, the boat may have more tendency to steer to one side or the other.
3-20 E EMG70011 CRUISING IN SHALLOW W A TER The outboard motor can be tilted up par- tially to allow operation in shallow water. w 8 Place the gear shift in the Neutral posi- tion before using the shallow water cruising system. 8 Run the boat at the lowest possible speed when using the shallow water cruising system.
3-21 E EMG71210 PROCEDURE 1) Place the gear shift lever in the neu- tral position. 2) Pull up the tilt lock lever. 3) Slightly tilt up the engine. The tilt- support bar will lock automatically, supporting the engine in a partially raised position. NOTE: If the engine is tilted up completely, the tilt-lock lever automatically locks.
3-22 E EMH10110 TIL TING UP/DOWN If the engine will be stopped for some time, or if the boat is moored in shallows, the engine should be tilted up to protect the propeller and casing from damage by collision with obstructions, and also to reduce salt corrosion.
3-23 E EMU00290 PROCEDURE FOR TILTING UP 1) Place the gear shift lever in Neutral. 2) Remove the fuel line connection from the motor. 3) Place the tilt lock lever in the release position. EMU00300 PROCEDURE FOR TILTING DOWN 1) Place the tilt lock lever in the lock position.
3-24 E EMH60010 CRUISING IN OTHER CONDITIONS CRUISING IN SALT WATER After operating in salt water, wash out the cooling-water passages with fresh water to prevent them from becoming clogged- up with salt deposits. NOTE: Refer to cooling system flushing instruc- tions in “TRANSPORTING AND STORING OUTBOARD MOTOR”.
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EMK00010 Chapter 4 MAINTENANCE SPECIFICATION DATA .............................4-1 TRANSPORTING AND STORING OUTBOARD MOTOR ...............................4-3 Trailering outboard motor ...................4-3 Storing outboard motor .....................
4-1 E EMR50302* SPECIFICA TION DA T A 25 (2.5, 18) 17 (1.7, 12) 8 Spark plug N•m (kgf•m, lb•ft) 8 Propeller nut N•m (kgf•m, lb•ft) Model Unit 9.9MHA Item DIMENSIONS PERFORMANCE 8 Overall Length mm (in.) 8 Overall Height S mm (in.) 8 Overall Width mm (in.
4-2 E 15MHA — — 873 (34.4) 1,040 (40.9) 332 (13.1) 440 (17.3) 36.6 (79.4) 4,500~5,500 11.0 (15) at 5,000 r/min. 700~800 2-stroke, L2 246 (15.01) 56 × 50 (2.20 × 1.97) C.D.I B7HS-10 0.9~1.0 (0.035~0.039) Tiller control Manual start — — — 12-(80) Choke valve start system Forward-Neutral-Reverse 2.
4-3 E TRAILERING OUTBOARD MOTOR The motor should be trailered and stored in the normal running position. If there is insufficient road clearance in this position, then trailer the motor in the tilt position using a motor support device such as a transom saver bar.
4-4 E 102015 q 102013 w EMK22010** STORING OUTBOARD MOTOR When storing your Yamaha outboard for prolonged periods of time, (2 months or longer), several important procedures must be performed to prevent expensive damage. It is advisable to have your outboard ser- viced by an authorized Yamaha dealer prior to storage.
4-5 E EMU00338* Flushing Cooling System and Fogging Engine Cooling system flushing is essential to prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fog- ging of the engine is mandatory to pre- vent expensive engine damage due to rust.
4-6 E EMK26010 Lubrication 1) Remove the spark plugs, and spray a 10 second spray of Yamaha Stor-Rite Engine Fogging Oil into each cylinder. Grease the spark plug threads and reinstall the spark plugs and torque to proper specification. (Refer to the Periodic Maintenance section, “Cleanning and adjusting spark plug.
4-7 E EMK32110 PERIODIC MAINTENANCE w Be sure to turn off the engine when you perform maintenance unless otherwise specified. If the owner is not familiar with machine servicing, this work should be done by a Yamaha dealer or other quali- fied mechanic.
4-8 E MAINTENANCE CHART Frequency of maintenance operations may be adjusted according to the operating con- ditions, but the following table gives general guidelines. The mark ( ● ) indicates the check-ups which you may carry out yourself. The mark ( 1 ) indicates work to be carried out by your Yamaha dealer.
4-9 E EMU01202 CLEANING AND ADJUSTING SPARK PLUG w When removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion or fire. The spark plug is an important engine component and is easy to inspect.
4-10 E When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque. NOTE: If a torque-wrench is not available when you are fitting a spark plug, a good esti- mate of the correct torque is 1/4 to 1/2 a turn past finger-tight.
4-11 E EMK38010 CHECKING FUEL SYSTEM w Gasoline (petrol) and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes, flames or other sources of ignition. Check the fuel line for leaks, cracks, or malfunctions. If any problem is found, it should be repaired immediately by Yama- ha dealer or other qualified mechanic.
4-12 E EMU00370 INSPECTING FUEL FILTER w Gasoline (petrol) is highly flammable, and its vapors are flammable and explosive. 8 If you have any question about properly doing this procedure, consult your Yamaha dealer. 8 Do not perform this procedure on a hot or running engine.
EMU00991 ADJUSTING IDLING SPEED w 8 Do not touch or remove electrical parts when starting or during operation. 8 Keep hands, hair and clothes away from flywheel and other rotating parts while engine is running. c C This procedure must be performed while the outboard motor is in the water.
4-14 E EMK78010 CHECKING WIRING AND CONNECTORS 1) Check that each grounding wire is properly secured. 2) Check that each connector is engaged securely. EXHAUST LEAKAGE Start the engine and check that no exhaust leaks from the joints between the exhaust cover, cylinder head and crank case.
E 4-15 EMU00366 GREASING Yamaha marine grease (Water resistant grease) 103011 63V-9-14-4 4/25/01 2:05 PM Page 16.
E 4-16 EML08110-* CHECKING PROPELLER w You could be seriously injured if the engine accidentally starts while you are near the propeller. 8 Before inspecting, removing or installing the propeller, remove the spark plug caps from the spark plugs.
4-17 [How to remove propeller] 1) Using the pliers provided, straighten the cotter-pin and pull it out. 2) Remove the propeller nut. 3) Remove the propeller. 1 Thrust washer 2 Propeller 3 Washer 4 Propeller nut 5 Cotter pin [How to install propeller] 1) Apply Yamaha Marine grease D or Marine grease (water-resistant grease) to the propeller-shaft.
4-18 E EML20010 CHANGING GEAR OIL w Never get under the lower unit while it is tilted, even when the tilt- support lever is locked. Severe injury could occur if the outboard accidentally falls. 1) Put the outboard in a vertical position (not tilted). w Be sure the outboard is securely fastened to the transom or a stable stand.
5) With the outboard motor in an verti- cal position, using a flexible or pres- surized filling device, inject outboard motor hypoid gear oil (SAE 90) into the oil drain plug hole. 6) When oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug.
4-20 E To clean the fuel tank: 1) Empty the fuel tank into an approved gasoline container. 2) Pour a small amount of suitable sol- vent in the tank. Reinstall the cap and shake the tank. Drain the solvent completely. To clean the fuel filter: 1) Remove the screws holding the fuel meter assembly.
EML40010 CHECKING BOLTS AND NUTS 1) Check that bolts securing the cylinder head and engine and the nut securing the flywheel are tightened with their specified tightening torques.
EMN00010 Chapter 5 TROUBLE RECOVER Y TROUBLESHOOTING ..............................5-1 TEMPORARY ACTION IN EMERGENCY ............................................5-5 Impact damege .....................................5-5 Starter will not operate ......
5-1 E EMU01204¯ TROUBLESHOOTING A problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. The troubleshooting chart describes basic checks and possi- ble remedies. (This chart covers all Yamaha outboard motors.
E 5-2 B. Engine idles irregularly or stalls. Trouble Possible Cause Remedy 1. Spark plug(s) fouled or incorrect type. 2. Fuel system obstructed. 3. Fuel contaminated or stale. 4. Fuel filter clogged. 5. Failed ignition parts. 6. Spark plug gap incorrect.
5-3 E Trouble Possible Cause Remedy 1. Propeller damaged. 2. Propeller pitch or diameter incorrect. 3. Trim angle incorrect. 4. Motor mounted at incorrect height on transom. 5. Boat bottom fouled with marine growth. 6. Spark plug(s) fouled or incorrect type.
E 5-4 Trouble Possible Cause Remedy D. Engine vibrates excessively. 1. Propeller damaged. 2. Propeller shaft damaged. 3. Weeds or other foreign matter tangled on propeller. 4. Motor mounting bolt loose. 5. Steering pivot loose or damaged. 1. Have propeller repaired or replaced.
E 5-5 EMN20010 TEMPORARY ACTION IN EMERGENCY EMH80010 IMPACT DAMAGE w The outboard motor can be seriously damaged by a collision while operating or trailering. Damage could make the out- board motor unsafe to operate. If the outboard motor hits any object in the water, follow the procedure below; 1) Stop the engine immediately.
E 5-6 EMN30110 STARTER WILL NOT OPERATE If the starter mechanism does not operate (engine cannot be cranked with the starter), the engine can be started with an emergency starter rope. w 8 Use this procedure only in an emer- gency and only to return to port for repairs.
E 5-7 208014 EMR00001 4) To start the engine with emergency starter rope, insert the knotted end of the rope into the notch in the flywheel rotor and wind the rope several turns clockwise. Then, give a strong pull straight out to crank the engine. Repeat if necessary.
5-8 E EMN50011 TREATMENT OF SUBMERGED MOTOR If the outboard motor is submerged, immediately take it a Yamaha dealer. Oth- erwise, some corrosion may begin almost immediately. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the procedure bellow for taking care to minimize engine damage.
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EMP00010 Chapter 6 INDEX INDEX ........................................................6-1 E 1 2 3 4 5 6 63V-9-14-6 4/25/01 2:07 PM Page 1.
6-1 E EMP10010 INDEX A Adjusting idling speed .......................... 4-13 Adjusting trim angle ..............................3-18 Air vent screw...........................................2-2 B Basic boating rules (Rules of the road) .. 1-6 Breaking in (running in) engine .
6-2 E Shifting ....................................................3-14 Specification data .................................... 4-1 Start-in-gear protection .........................1-13 Starter will not operate............................5-6 Starting engine .
EMU01599 IMPORT ANT W ARRANTY INFORMA TION FOR U.S.A. AND CANADA Welcome to the Yamaha Family! Congratulations on the purchase of your new Yamaha marine power. Yamaha is commit- ted to exceptional customer satisfaction, and we want your ownership experience to be a satisfying one.
5. Your warranty applies specifically to repairs made in the country of purchase. If your U.S.-purchased Yamaha needs warranty service while in Canada, or your Canadian pur- chased Yamaha needs service while in the United States, Yamaha will assist the local dealer whenever possible.
EMU00912* Y AMAHA MOTOR CORPORA TION, U.S.A. OUTBOARD MOTOR TWO YEAR LIMITED W ARRANTY Yamaha Motor Corporation, U.S.A. is proud of its heritage and reputation for producing products with high standards of quality and workmanship. Product excellence provides the cornerstone for our commitment to customer satisfaction.
SPECIFIC PARTS EXCLUDED FROM WARRANTY. Parts replaced due to normal wear or routine maintenance such as oil, spark plugs, shear pins, propellers, hubs, fuel and oil filters, brushes for the starter motor and power tilt motor, water pump impellers, and anodes are not covered by warranty.
CUSTOMER SERVICE If your machine requires warranty service, you must take it to any authorized Yamaha outboard dealer within the continental Uni ted States. Be sure to bring your warranty registration identification or other valid proof of the original date of purchase.
EMU01178 IMPORT ANT W ARRANTY INFORMA TION IF YOU USE YOUR Y AMAHA OUTSIDE U.S.A. OR CANADA Welcome to the Yamaha Family! Congratulations on the purchase of your new Yamaha marine power. Yamaha is com- mitted to exceptional customer satisfaction, and we want your ownership experience to be a satisfying one.
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9.9A/15A Printed in Japan March 2001—0.5 × 1 ! 63V-28199-14 (9.9FMH/15FMH) (E) Printed on recycled paper OW 63V-9-14 01.4.25 2:17 PM y[W 1 (1,1).
9.9A/15A paper LIT -18626-04-53 9.9A 15A OWNER’S MANUAL U.S.A.Edition 63V-9-14 01.4.25 2:17 PM y[W 1 (2,1).
デバイスYamaha 9.9Aの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Yamaha 9.9Aをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはYamaha 9.9Aの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Yamaha 9.9Aの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Yamaha 9.9Aで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Yamaha 9.9Aを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はYamaha 9.9Aの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Yamaha 9.9Aに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちYamaha 9.9Aデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
