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From inside (document excerpt):
25 OWNER’S MANUAL U.S.A.Edition LIT-18626-06-93 6L2-28199-1R EMU25060 ZMU01690 Read this owner’s manual carefully before operating your outboard motor. Important manual information EMU31280 To the owner Thank you for choosing a Yamaha outboard motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha.
If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer. In this Owner’s Manual particularly important information is distinguished in the following ways. The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! EWM00780 al, please consult your Yamaha dealer. NOTE: The 25MH, 25EH, 25ER and the standard accessories are used as a base for the explanations and illustrations in this manual. Therefore some items may not apply to every model. EMU25110 WARNING Failure to follow WARNING instructions could result in severe injury or death to the machine operator, a bystander, or a person inspecting or repairing the outboard motor. ECM00700 25 OWNER’S MANUAL 2006 by Yamaha Motor Corporation, USA 1st edition, March 2006 Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, USA is expressly prohibited. Printed in Japan P/N LIT-18626-06-93 CAUTION: 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 product information available at the time of printing, there may be minor discrepancies between your machine and this manual. If there is any question concerning this manu- Table of contents General information 1 Identification numbers record 1 Outboard motor serial number 1 Key number . 1 Starter button 16 Main switch . 16 Steering friction adjuster . 17 Trim tab with anode . 17 Trim rod (tilt pin) 17 Shallow water lever . 18 Tilt lock mechanism . 18 Tilt support bar 18 Top cowling lock lever(s) (turn type) 18 Warning indicator 18 Emission control information . 1 North American models . 1 Safety information . 2 Important labels . 3 Warning labels 3 Basic boating rules (Rules of the road) 4 Steering and sailing rules and sound signals 4 Rules when encountering vessels 5 Other special situations . 6 Warning system 19 Overheat warning 19 Operation . 20 Installation . 20 Mounting the outboard motor 20 Clamping the outboard motor 21 Fueling instructions . 7 Gasoline 8 Engine oil 8 Breaking in engine 22 Gasoline and engine oil mixing chart (25:1) 22 Procedure for pre-mixed models . 22 Battery requirement . 8 Battery specifications 8 Without a rectifier or Rectifier Regulator 8 Preoperation checks . 23 Fuel . 23 Oil 23 Controls . 23 Engine . 23 Propeller selection . 9 Start-in-gear protection . 10 Basic components 11 Main components 11 Fuel tank . 11 Fuel joint . 12 Fuel gauge 12 Fuel tank cap 12 Air vent screw . 12 Remote control 12 Remote control lever . 12 Neutral interlock trigger . 13 Neutral throttle lever 13 Choke switch . 13 Tiller handle 13 Gear shift lever 14 Throttle grip . 14 Throttle indicator . 14 Throttle friction adjuster . 14 Engine stop lanyard switch . 15 Engine stop button 15 Choke knob for pull type . 16 Manual starter handle . 16 Filling fuel and engine oil 23 Filling fuel for portable tank . 23 Ring Free Fuel Additive . 24 Gasoline and oil mixing (100:1) . 24 Operating engine 25 Feeding fuel (portable tank) 25 Starting engine 26 Warming up engine . 33 Choke start models . 33 Shifting 33 Forward (tiller handle and remote control models) . 33 Reverse (manual tilt and hydro tilt models) . 34 Stopping engine 35 Procedure 35 Trimming outboard motor 36 Adjusting trim angle for manual tilt models 36 Table of contents Adjusting boat trim 37 Tilting up and down . 38 Procedure for tilting up (manual tilt models) . 38 Procedure for tilting down (manual tilt models) 39 Checking battery (for electric start models) . 56 Connecting the battery 57 Disconnecting the battery 58 Checking top cowling 58 Coating the boat bottom 58 Cruising in shallow water 39 Cruising in shallow water (manual tilt models) 39 Trouble Recovery 59 Troubleshooting 59 Temporary action in emergency. 62 Impact damage . 62 Replacing fuse 62 Starter will not operate 63 Emergency starting engine . 63 Cruising in other conditions . 41 Maintenance . 42 Specifications 42 Transporting and storing outboard motor . 43 Clamp screw mounting models . 44 Storing outboard motor . 44 Procedure . 44 Lubrication (except oil injection models) . 45 Cleaning and anticorrosion measures 45 Battery care . 46 Cleaning the outboard motor 46 Checking painted surface of motor . 46 Treatment of submerged motor 65 Procedure 65 Periodic maintenance 47 Replacement parts 47 Maintenance chart 48 Greasing . 49 Cleaning and adjusting spark plug . 50 Checking fuel system 50 Inspecting fuel filter . 51 Cleaning fuel filter . 51 Inspecting idling speed . 52 Checking wiring and connectors . 52 Exhaust leakage . 52 Water leakage . 52 Checking propeller 53 Removing the propeller . 54 Installing the Propeller 54 Changing gear oil 54 Cleaning fuel tank . 55 Inspecting and replacing anode(s) 56 Consumer information . 66 Important warranty information for U.S.A. and Canada . 66 YAMAHA MOTOR CORPORATION, U.S.A. OUTBOARD MOTOR TWO YEAR LIMITED WARRANTY . 68 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA 71 General information EMU25170 Identification numbers record EMU25183 Outboard motor serial number The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. 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 stolen.