2005 Yamaha Outboard 90D Boat Motor Owners Manual

90D OWNER’S MANUAL U.S.A.Edition LIT-18626-05-86 6H1-28199-14 EMU25060 ZMU01690 Read this owner’s manual carefully before operating your outboard motor. Important manual information EMU25100 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 90TR 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 90D OWNER’S MANUAL 2004 by Yamaha Motor Corporation, USA 1st edition, March 2004 Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, USA is expressly prohibited. Printed in Japan P/N LIT-18626-05-86 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 type) 15 Flushing device . 16 Tachometer . 16 Digital tachometer . 16 Oil level indicators (three indicators) . 16 Oil level indicator (digital type) 17 Overheat warning indicator (digital type) 17 Trim meter . 17 Trim meter (digital type) 17 Hour meter (digital type) 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) 3 Steering and sailing rules and sound signals 4 Rules when encountering vessels 4 Other special situations . 5 Warning system 18 Overheat warning 18 Oil level warning and oil filter clogging warning . 19 Fueling instructions . 7 Gasoline 8 Engine oil 8 Operation . 21 Installation . 21 Mounting the outboard motor 21 Battery requirement . 8 Battery specifications 8 Breaking in engine 22 Gasoline and engine oil mixing chart (50:1) 22 Procedure for oil injection models 22 Propeller selection . 8 Start-in-gear protection . 9 Basic components 10 Main components 10 Fuel tank . 10 Fuel joint . 11 Fuel gauge 11 Fuel tank cap 11 Air vent screw . 11 Remote control 11 Remote control lever . 11 Neutral interlock trigger . 12 Neutral throttle lever 12 Throttle friction adjuster . 12 Engine stop lanyard switch . 13 Main switch . 13 Power trim and tilt switch on remote control or tiller handle . 14 Power trim and tilt switch on bottom engine cowling 14 Trim tab with anode 14 Trim rod (tilt pin) 15 Tilt support lever for power trim and tilt or hydro tilt model . 15 Top cowling lock lever(s) (turn Preoperation checks . 23 Fuel . 23 Oil 23 Controls . 23 Engine . 23 Operation after a long period of storage 23 Filling fuel and engine oil 24 Filling fuel for portable tank . 24 Filling oil for electric start models 24 Oil level indicator operation . 26 Operating engine 26 Feeding fuel (portable tank) 26 Starting engine 27 Warming up engine . 28 Electric start and prime start models 28 Shifting 29 Forward (tiller handle and remote control models) . 29 Table of contents Reverse (automatic reverse lock and power trim and tilt models). 29 Stopping engine 30 Procedure . 30 Trimming outboard motor 30 Adjusting trim angle 31 Adjusting boat trim 31 Tilting up and down . 32 Procedure for tilting up 33 Procedure for tilting down . 34 Cruising in shallow water 34 Power trim and tilt models / power tilt models 34 Checking propeller 48 Removing the propeller . 49 Installing the propeller . 49 Changing gear oil 49 Cleaning fuel tank . 50 Inspecting and replacing anode(s) 51 Checking battery (for electric start models) . 52 Connecting the battery 53 Disconnecting the battery 53 Checking top cowling 53 Coating the boat bottom 53 Cruising in other conditions . 35 Maintenance . 36 Specifications 36 Transporting and storing outboard motor . 37 Storing outboard motor . 37 Procedure . 37 Lubrication (oil injection models). 38 Cleaning and anticorrosion measures 39 Battery care.