Yamaha 9.9C Owner'S Manual Download Page 79

Page: 79 / 96

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.

2. Have serviced by a Yamaha

dealer.

3. Remove and clean propeller.

4. Tighten bolt.

5. Tighten or have serviced by a

Yamaha dealer.

63V-9-16-5 2/18/03 14:14 Page 5

Summary of Contents for 9.9C

Page 1: ...9 9C 15C OWNER S MANUAL U S A Edition LIT 18626 05 34...

Page 2: ......

Page 3: ...pecial 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 advance ments in product...

Page 4: ...GENERAL INFORMATION BASIC COMPONENTS OPERATION MAINTENANCE TROUBLE RECOVERY INDEX CONTENTS READ THIS OWNER S MANUAL CAREFULLY BEFORE OPERATING YOUR OUTBOARD MOTOR E 1 2 3 4 5 6...

Page 5: ...NUMBERS RECORD 1 1 Outboard motor serial number 1 1 EMISSION CONTROL INFORMATION 1 2 SAFETY INFORMATION 1 3 IMPORTANT LABELS 1 5 BASIC BOATING RULES 1 6 FUELING INSTRUCTIONS 1 10 Gasoline 1 11 Engine...

Page 6: ...label attached to the port side of the clamp bracket Record your outboard motor serial num ber in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in...

Page 7: ...ing 1 Emission control information label Existing Technology N A Manufactured date label This label is attached to the clamp bracket or the swivel bracket 2 Manufactured date label EMISSION CONTROL I...

Page 8: ...carefully for swimmers during the engine operation 8 Stay away from swimming areas 8 When a swimmer is in the water near you shift into neutral and shut off the engine EMU00917 SAFETY INFORMATION 8 Be...

Page 9: ...ted States Coast Guard Consumer Affairs Staff G BC Office of Boating Public and Consumer Affairs U S Coast Guard Headquarters Washington D C 20593 0001 Boating Safety Hotline 1 800 368 5647 National M...

Page 10: ...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 except 2HP Do not touch or remove electrical parts when s...

Page 11: ...ccur unless both vessels try to avoid each other If that is the case both vessels become Give Way vessels EMB40010 BASIC BOATING RULES Rules of the road Just as there are rules which apply when you ar...

Page 12: ...You must stay out RULES WHEN ENCOUNTERING VESSELS There are three main situations which you may encounter with other vessels which could lead to a collision unless the Steer ing Rules are followed Me...

Page 13: ...markers are white with black letters and orange boarders They signify speed zones restricted areas danger areas and general information of its way until you are clear of it Like wise if another vesse...

Page 14: ...ad of naviga MAIN CHANNEL BUOYS 1 3 5 7 tion Leave to port left proceeding upstream LIGHTED BUOY Port Hand White Light Green Light old new old new old new LIGHTED BUOY Starboard Hand 2 4 6 Even number...

Page 15: ...ely with dry rags 8 Do not overfill the fuel tank 8 Tighten the filler cap securely after refueling 8 If you should swallow some gasoline inhale a lot of gasoline vapor or get gasoline in your eyes ge...

Page 16: ...ma ha because it can cause fuel system dam age or engine performance problems EMU00858 ENGINE OIL If the recommended engine oil is not available another 2 stroke engine oil with a NMMA certified TC W3...

Page 17: ...verse effect on the engine Yamaha outboard motors are fitted with propellers chosen to perform well over a range of applications but there may be uses where a propeller with a different pitch would be...

Page 18: ...s reduce the throttle setting to maintain the rpm in the proper operating range 1 Propeller diameter in inches 2 Propeller pitch in inches 3 Type of propeller propeller mark Refer to the section CHECK...

Page 19: ...shift lever 2 2 Engine stop button 2 3 Engine stop lanyard switch 2 3 Throttle control grip 2 4 Choke knob 2 4 Recoil starter handle 2 4 Tiller handle 2 5 Steering friction adjustment 2 6 Trim angle a...

Page 20: ...ndle 6 Gear shift lever 7 Throttle control grip 8 Throttle friction adjustment knob 9 Engine stop button Engine stop lanyard switch 0 Clamp screw q Carrying handle w Cooling water inlet e Anti cavitat...

Page 21: ...This meter is on the fuel tank cap It shows current fuel quantity in the fuel tank approximately Fuel tank cap This cap is for filling fuel To remove it turn it counterclockwise Air Vent screw This sc...

Page 22: ...the lock plate stopping igni tion to the engine This will prevent the boat from running away under power w 8 Attach the lanyard to a secure place on your clothing your arm or leg while operating 8 Do...

Page 23: ...on Choose the setting that offers the best performance and fuel economy for the desired operation 1 Throttle indicator EMC42310 CHOKE KNOB Pulling out this knob supplies a rich mix ture required to st...

Page 24: ...able for opera tor preference An adjusting screw bolt is located within the tiller handle To increase the resistance Turn the adjusting screw bolt clockwise To decrease the resistance Turn the adjusti...

Page 25: ...ten the friction screw bolt If there is too much resis tance it may be difficult to steer which could result in an accident EMU01297 TRIM ANGLE ADJUSTING ROD The position of the trim angle adjusting r...

Page 26: ...the tilt lock lever in the lock posi tion while using the carrying handle Oth erwise the lower casing may fall to the grand while carrying the motor 1 Clamp bracket bar E q 2 7 403013 EMD48010 TILT S...

Page 27: ...xing 3 6 PRE OPERATION CHECKS 3 7 BREAKING IN RUNNING IN ENGINE 3 8 STARTING ENGINE 3 10 WARMING UP ENGINE 3 13 SHIFTING 3 14 Forward 3 14 Reverse 3 15 STOPPING ENGINE 3 16 TRIMMING OUTBOARD MOTOR 3 1...

Page 28: ...ne water spray while the boat is cruising Severe engine damage may result if the motor is operat ed continuously in the presence of air borne water spray NOTE During water testing check the buoyancy o...

Page 29: ...the specific boat motor com bination 8 Your dealer or other person experi enced in proper rigging should mount the motor If you are mounting the motor yourself you should be trained by an experienced...

Page 30: ...ight is too high cavitation tends to occur thus reducing the propulsion and if the pro peller tips cut the air the engine speed will rise abnormally and cause the engine to overheat If the mounting he...

Page 31: ...Loose clamp screws could allow the motor to move on the transom or fall off the transom This could cause loss of control and serious injury Make sure the transom screws are tightened securely Occasion...

Page 32: ...itives such as aromatics and oxy genates has increased These additives are important for the engines in passen ger cars but they can have detrimental effects in marine engines because of increased dep...

Page 33: ...ng 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 could cause fouled spark plugs sm...

Page 34: ...40012 PRE OPERATION CHECKS w If any item in the pre operation check is not working properly have it inspected and repaired before operating the out board motor Otherwise an accident could occur EMF411...

Page 35: ...ine and engine mounting 8 Look for loose or damaged fasteners 8 Check the propeller for damage cC Do not start the engine out of water Overheating and serious engine damage can occur EMF50012 BREAKING...

Page 36: ...ne then reduce engine speed to three quarter throttle approximately 4 000 r min Vary engine speed occasional ly Run at full throttle for one minute then allow about 10 minutes of opera tion at three q...

Page 37: ...ust gases which contain carbon monoxide a col orless odorless gas which may cause brain damage or death when inhaled Symptoms include nausea dizziness and drowsiness Keep cockpit and cabin areas well...

Page 38: ...e engine stop switch w 8 Attach the engine stop switch lanyard to a secure place on your clothing your arm or leg while operating 8 Do not attach the lanyard to clothing that could tear loose Do not r...

Page 39: ...he choke knob to the original position NOTE 8 It is not necessary to use the choke when restarting a hot engine 8 If the choke knob is left pulled out the engine will stall 8 Pull the starter handle s...

Page 40: ...flow of water from the pilot hole shows that the water pump is pumping water through the cooling pas sages If water is not flowing out of the pilot hole at all times while the engine is running do no...

Page 41: ...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 EMG22110 FORWARD 1 Place the throttle control grip in th...

Page 42: ...e 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 2 Check that the tilt lock lever for Man ual ti...

Page 43: ...Push and hold the engine stop button until the engine comes to a complete stop 2 After stopping the engine disconnect the fuel line from the motor 3 Tighten the air vent screw on the fuel tank cap aft...

Page 44: ...peller Correct trim is also affected by variables such as the load in the boat sea conditions and running speed w Excessive trim for the operating condi tions either trim up or trim down can cause boa...

Page 45: ...nsom Make test runs with the trim set to differ ent angles to find the position that works best for your boat and operating condi tions w 8 Stop the engine before adjusting the trim angle 8 Use care t...

Page 46: ...my are decreased because the hull of the boat is pushing the water and there is more air drag Excessive trim out can also cause the propeller to ventilate which reduces performance further and the boa...

Page 47: ...sed Hitting an underwater obstacle could cause the engine to lift out of the water resulting in loss of control 8 Use extra care when operating in reverse Too much reverse thrust can cause the engine...

Page 48: ...ine in a partially raised position NOTE If the engine is tilted up completely the tilt lock lever automatically locks The shallow water lever is no longer effective 4 When lowering the engine push the...

Page 49: ...m over heating can result 8 Do not tilt up the engine by pushing the steering handle as this could break the handle 8 Keep the power unit higher than the propeller at all times Otherwise water can run...

Page 50: ...position EMU00300 PROCEDURE FOR TILTING DOWN 1 Place the tilt lock lever in the lock position 2 Slightly tilt up the engine until the tilt support bar is released automatically 3 Tilt down the engine...

Page 51: ...esh 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 CRUISING IN TURBID WATER It is stro...

Page 52: ...E MEMO...

Page 53: ...and adjusting spark plug 4 9 Checking top cowling 4 10 Checking fuel system 4 11 Inspecting fuel filter 4 12 Inspecting idling speed 4 13 Checking wiring and connectors 4 14 Exhaust leakage 4 14 Water...

Page 54: ...NGK Spark plug gap mm in 8Control system 8Starting system 8Alternator output V A W 8Starting carburetion system 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...

Page 55: ...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 08 27 13 Manual J Regular unleaded gasoline P O N minimum 86 25 6 6 5 5 YAMALUBE...

Page 56: ...onal support device to secure it in the up position w 8 Never get under the lower unit while it is tilted even if a motor support bar is used Severe injury could occur if the outboard accidentally fal...

Page 57: ...and stabilizer Part No LUB FUELC 12 00 to each gallon of fuel NOTE The use of Yamaha Fuel Conditioner and Stabilizer eliminates the need to drain the fuel system Consult your Yamaha dealer or other qu...

Page 58: ...he fresh water level is below the level of the anti cavitation plate or if the water supply is insufficient engine seizure may occur a 605024 q w 1 Remove the engine top cowling 2 Install the outboard...

Page 59: ...the lower unit oil Refer to the Periodic Maintenance section Changing gear oil Inspect the oil for the presence of water which indi cates a leaky seal Seal replacement should be performed by an autho...

Page 60: ...he emission control system must be performed by an authorized Yamaha marine dealership A service manual is available for purchase through a Yamaha dealer for owners who have the mechanical skills tool...

Page 61: ...s 200 hours 1 month 3 months 6 months 1 year Spark plug s Cleaning adjustment replacement Greasing points Greasing Gear oil Change Fuel system Inspection Fuel filter can be disassembled Inspection cle...

Page 62: ...r 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 remove and inspect the spark...

Page 63: ...to 1 2 a turn past finger tight Have the spark plug adjusted to the correct torque as soon as possible with a torque wrench 1 Spark plug gap 2 Spark plug I D mark NGK Spark plug torque Refer to SPECIF...

Page 64: ...found it should be repaired immediately by Yama ha dealer or other qualified mechanic Checking points 8 Fuel system parts leakage 8 Fuel hose joint leakage 8 Fuel hose cracks or other damage 8 Fuel co...

Page 65: ...d carefully with O ring filter cup and hoses in place Improper assembly or replacement can result in a fuel leak which could result in a fire or explosion hazard 207012 207013 w e q r EMU09782 1 Remov...

Page 66: ...sults may vary depending on whether testing is conduct ed with the flushing attachment in a test tank or with the outboard motor in the water 1 Start the engine and allow it to warm up fully in neutra...

Page 67: ...nder head and crank case WATER LEAKAGE Start the engine and check that no water leaks from the joints between the exhaust cover cylinder head and crank case 606011 NOTE Correct idling speed inspection...

Page 68: ...E 4 15 EMU00366 GREASING Yamaha marine grease Water resistant grease 103011...

Page 69: ...ngine stop switch Turn off the battery cut off switch if your boat has one 8 Do not use your hand to hold the pro peller when loosening or tightening the propeller nut Put a wood block between the cav...

Page 70: ...aft 3 Install the washer and tighten the pro peller nut to the specified torque 4 Align the propeller nut with the pro peller shaft hole Insert a new cotter pin in the hole and bend the cotter pin end...

Page 71: ...otor acci dentally falls 1 Tilt the outboard motor so that the gear oil drain screw is at the lowest point possible 2 Place a suitable container under the gear case 001186 w q 3 Remove the gear oil dr...

Page 72: ...sive 8 If you have any question about properly doing this procedure consult your Yamaha dealer 8 Keep away from sparks cigarettes flames or other sources of ignition when cleaning the fuel tank 8 Remo...

Page 73: ...ter to dry 3 Replace the gasket with a new one Reinstall the fuel meter assembly and tighten the screws firmly 902054 EMU14622 INSPECTING AND REPLACING ANODE S Yamaha outboard motors are protected fro...

Page 74: ...Yamaha dealer for touch up paint 102031 102025 EML44010 COATING THE BOAT BOTTOM A clean hull improves boat performance The boat bottom should be kept as clean of marine growths as possible If necessar...

Page 75: ...EMN00010 Chapter 5 TROUBLE RECOVERY TROUBLESHOOTING 5 1 TEMPORARY ACTION IN EMERGENCY 5 5 Impact damege 5 5 Starter will not operate 5 6 Treatment of submerged motor 5 8 E 1 2 3 4 5 6...

Page 76: ...gged 4 Starting procedure incorrect 5 Fuel pump malfunctions 6 Spark plug s fouled or incorrect type 7 Spark plug cap s fitted incorrectly 8 Poor connections or damaged ignition wiring 9 Ignition part...

Page 77: ...on incorrect 17 Throttle valve adjustment incorrect 1 Inspect spark plug s Clean or replace with recommended type 2 Check for pinched or kinked fuel line or other obstructions in fuel system 3 Fill ta...

Page 78: ...epaired or replaced 2 Install correct propeller to operate outboard at its recommended speed r min range 3 Adjust trim angle to achieve most efficient operation 4 Have motor adjusted to proper transom...

Page 79: ...er 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 2 Have serviced by a Yamaha de...

Page 80: ...t board motor unsafe to operate If the outboard motor hits any object in the water follow the procedure below 1 Stop the engine immediately 2 Inspect the control system and all components for damage A...

Page 81: ...pectedly start to move which could result in an accident 8 Be sure no one is standing behind you when pulling the starter rope It could whip behind you and injure someone 8 An unguarded rotating flywh...

Page 82: ...12 407021 301012 3 Prepare the engine for starting See STARTING ENGINE for procedures Be sure the engine is in Neutral and that the lanyard is attached to the engine stop switch On the electric start...

Page 83: ...Thoroughly wash away mud salt seaweed etc 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 car...

Page 84: ...E MEMO...

Page 85: ...EMP00010 Chapter 6 INDEX INDEX 6 1 E 1 2 3 4 5 6...

Page 86: ...lanyard switch 2 3 Exhaust leakage 4 14 F Filling fuel 3 5 Filling fuel and engine oil 3 5 Filling fuel tank 4 4 Flushing cooling system and fogging engine 4 5 Flushing in a water tank 4 5 Forward 3...

Page 87: ...control grip 2 4 Throttle friction adjustment 2 5 Throttle indicator 2 4 Tiller handle 2 5 Tilt lock mechanism 2 6 Tilt support bar 2 7 Tilting up down 3 22 Top cowling lock lever 2 7 Trailering outbo...

Page 88: ...istration records are checked 2 Read the Limited Warranty statement which follows these instructions This warranty applies to Yamaha outboard motors sold in the United States whether purchased sepa ra...

Page 89: ...lable in one country may not be sold or serviced in the other 6 If you need any additional information about your Yamaha or warranty coverage which your dealer cannot provide please contact us directl...

Page 90: ...or purchased and registered for use in the United States only excluding its territo ries For warranty provisions outside the United States contact the particular country s local Yamaha distributor WAR...

Page 91: ...SO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE YAMAHA MOTOR CORPORATION U S A Post Office Box 6555 Cypress California 90630 WARRANTY QUESTIONS AND ANSWERS Q What costs are my responsibility durin...

Page 92: ...tion such as names addresses model engine serial number dates and receipts CHANGE OF ADDRESS The federal government requires each manufacturer of a motor vehicle to maintain a complete up to date list...

Page 93: ...l receive service If you need more information about your warranty coverage or your Yamaha outside the U S A or Canada please contact an autho rized Yamaha dealer in your country 2 Keep a copy of your...

Page 94: ...Printed in Japan March 2003 0 5 1 63V 28199 16 9 9FMH 15FMH E Printed on recycled paper...

Page 95: ...d tail OUTBOARD MOTOR MODEL AND SERIAL NUMBER From I D label on clamp bracket MOD LE ET NO DE S RIE DU MOTEUR HORS BORD sur l tiquette d identification de la presse de fixation For Dealer Use Only A...

Page 96: ...PLACE POSTAGE HERE ATTN WARRANTY DEPARTMENT Warranty card 2 27 02 11 47 AM Page 2...

Search results

Summary of Contents for 9.9C

Reviews:

Related manuals for 9.9C

Brands by name

Popular brands

Yamaha 9.9C, Owner'S Manual

Search results

Summary of Contents for 9.9C

Reviews:

Related manuals for 9.9C

Brands by name

Popular brands