User manual YAMAHA 50HP-2001

[. . . ] In this Owner's Manual particularly important information is distinguished in the following ways. cC 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. [. . . ] 8 Keep hands, hair and clothes away from flywheel and other rotating parts while engine is running. 3) 4) Run the engine at a fast idle for 10~15 minutes. Just prior to turning off the engine, quickly spray "Yamaha Stor-Rite Engine Fogging Oil" (Part No. LUBSTRRT-12-00) alternately into each carburetor. When properly done, the engine will smoke excessively and almost stall. Remove the flushing attachment and wipe off any excess water. Install the silencer cover and top cowling. Install the propeller. 5) 6) 4-6 E EMK26112 Lubrication 1) Remove the spark plugs, and spray a 10 second spray of "Yamaha StorRite Engine Fogging Oil" into each cylinder. Grease the spark plug threads and reinstall the spark plugs and torque to proper specification. (Refer to "CLEANING AND ADJUSTING SPARK PLUG". ) 2) Turn the engine over with the stop lanyard disconnected to work the fogging oil into the piston rings. This prevents the formation of condensation. Once a month, check the specific gravity of the electrolyte and recharge as required to prolong battery life. 2) EL LEV EL ER V UPP ER LE LOW 3) 4) 901015 4-8 E EMU01569 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 qualified mechanic. Maintenance, replacement, or repair of the emission control devices and systems may be performed by any marine engine repair establishment or individual. All warranty repairs, however, including those to the 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, tools, and other equipment necessary to perform maintenance not covered by this owner's manual. EMK33011 REPLACEMENT PARTS If replacement parts are necessary, use only genuine Yamaha parts or equivalents of the same type and of equivalent strength and materials. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and passengers. Yamaha genuine parts and accessories are available from a Yamaha dealer. 4-9 E EMK30114* MAINTENANCE CHART Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines. The mark (G) indicates the check-ups which you may carry out yourself. The mark ( ) indicates work to be carried out by your Yamaha dealer. 1 Interval Initial 10 hours Item Carburetor Fuel filter Fuel system Fuel tank *2 Throttle link Idling speed Spark plug Oil tank water drain Oil pump Cleaning Cleaning Inspection Cleaning Inspection/Adjustment Inspection/Adjustment Cleaning/Adjustment/ Replacement Cleaning Inspection/Adjustment G G G 1 G G G G G G G G G G G (every month) G G G G G G G G G G G G G G G G G G G G G G G G 1 G G Every Refer page 50 hours 100 hours 200 hours (3 months) (6 months) (1 year) 1 G 1 G G G 1 -- 4-16 4-15 4-24 -- 4-17 4-13 4-18 -- 4-20 4-19 4-19 4-19 4-11 4-23 4-29 -- 4-25 4-21 4-29 4-5 4-26 Power trim and tilt system*1 Inspection Wiring & Connector Exhaust leakage Water leakage Grease points Gear oil Bolts & Nuts Cowling clamp Anode Propeller Motor exterior Cooling water passages*3 Battery Inspection/Reconnect Inspection Inspection Greasing Change Retightening Inspection Inspection Inspection Inspection Cleaning Inspection *1. When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. 4-10 E EMU00366 GREASING Yamaha marine grease (Water resistant grease) 4-11 E EMU01202 CLEANING AND ADJUSTING SPARK PLUG w When removing or installing a spark plug, be careful not to damage the insulator. [. . . ] This list is complied from the purchase registrations sent to Yamaha Motor Corporation, U. S. A. by the selling dealer at the time of your purchase. If you should move after you have purchased your new outboard, please advise us of your new address by sending a postcard listing your outboard model name, engine serial number, dealer number (or dealer's name) as it is shown on your warranty identification, your name and new mailing address. Mail to: YAMAHA MOTOR CORPORATION, U. S. A. [. . . ]