Yamaha outboard motor manual

C40A

C50A

OWNER’S MANUAL

U.S.A.Edition

LIT-18626-04-75

Contents

Page Page TO THE OWNER Page Page Page Page OUTBOARD MOTOR SERIAL NUMBER YAMAHA MOTOR CO., LTD MADE IN JAPAN PAYS D’ORIGINE JAPON NORTH AMERICAN MODELS QINFORMATIONSAFETY United States Coast Guard National Marine Manufacturers Association (NMMA) Marine Retailers Association of America WARNING LABELS CAUTION LABELS STEERING AND SAILING RULES AND SOUND SIGNALS RULES WHEN ENCOUNTERING VESSELS OTHER SPECIAL SITUATIONS Page GASOLINE (PETROL) ENGINE OIL BATTERY REQUIREMENT PROPELLER SELECTION Page START-IN-GEARPROTECTION Page MAIN COMPONENTS OPERATIONS OF CONTROLS AND WARNING SYSTEM MAIN COMPONENTS FUEL TANK REMOTE CONTROL wF r Nq r Re Neutral throttle lever Main switch 8OFF 8ON 8START Page UP DN TRIM TAB TRIM ANGLE ADJUSTING ROD TILT SUPPORT LEVER TOP COWLING LOCK LEVER OVERHEAT WARNING INSTALLATION FILLING FUEL AMD ENGINE OIL PRE-OPERATION CHECKS BREAKING IN (RUNNING IN) ENGINE INSTALLATION MOUNTING THE OUTBOARD MOTOR Page FILLING FUEL GASOLINE (PETROL) AND OIL MIXING 8Avoid using any oil other than the des- ignated type 8Use a thoroughly blended fuel-oilmix- ture PRE-OPERATIONCHECKS BREAKING IN (RUNNING IN) ENGINE Page STARTING ENGINE PROCEDURE FOR REMOTE CONTROL MODEL Page WARMING UP ENGINE FORWARD REVERSE PROCEDURE TRIMMING OUTBOARD MOTOR ADJUSTING TRIM ANGLE Bow Up Bow Down TILTING UP/DOWN PROCEDURE FOR TILTING UP PROCEDURE FOR TILTING DOWN CRUISING IN SALT WATER CRUISING IN TURBID WATER SPECIFICATION DATA TRANSPORTING AND STORING OUTBOARD MOTOR PERIODIC MAINTENANCE SPECIFICATION DATA Page TRAILERING OUTBOARD MOTOR STORING OUTBOARD MOTOR Page Page Lubrication Cleaning and Anti-corrosionMeasure Page REPLACEMENT PARTS MAINTENANCE CHART GREASING CLEANING AND ADJUSTING SPARK PLUG Page CHECKING FUEL SYSTEM CLEANING FUEL FILTER ADJUSTING IDLING SPEED REPLACING FUSE CHECKING WIRING AND CONNECTORS EXHAUST LEAKAGE WATER LEAKAGE CHECKING POWER TRIM AND TILT SYSTEM CHECKING PROPELLER Page CHANGING GEAR OIL CLEANING FUEL TANK INSPECTING AND REPLACING ANODE CHECKING BATTERY (for Electric start model) Page CHECKING BOLTS AND NUTS MOTOR EXTERIOR COATING THE BOAT BOTTOM TROUBLESHOOTING TEMPORARY ACTION IN EMERGENCY TROUBLESHOOTING Page Page Page IMPACT DAMAGE POWER TRIM / TILT WILL NOT OPERATE STARTER WILL NOT OPERATE Prime start model ENGINE FAILS TO OPERATE Page TREATMENT OF SUBMERGED MOTOR Page INDEX Page Page IMPORTANT WARRANTY INFORMATION FOR U.S.A. AND CANADA Welcome to the Yamaha Family United States Dealer Locations: Canada Dealer Locations: Yamaha Motor Corporation, U.S.A P.O. Box Cypress, CA Attention: Customer Relations Department Telephone No YAMAHA MOTOR CORPORATION, U.S.A OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY Page Page IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE U.S.A. OR CANADA Page Page 63D-28199-15