User manual YAMAHA 90HP-2000

[. . . ] In this Owner's Manual particularly important information is distinguished in the following ways. The Safety Alert Symbol means ATTENTION!YOUR SAFETY IS INVOLVED! 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. [. . . ] 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. 4-5 E EMK26111 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. For models with a remote tank, it may be necessary to manually override the control unit to completely fill the engine main tank. (Refer to "TEMPORARY ACTION IN EMERGENCY"). (Refer to "CHANGING GEAR OIL"). Inspect the oil for the presence of water which indicates a leaky seal. 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. 4-8 E EMU19470 MAINTENANCE CHART Frequency of maintenance operations may be adjusted according to the operating conditions, but the following table gives general guidelines. Refer to the sections in this chapter for explanations of each owner-specific action. The mark (G) indicates the check-ups which you may carry out yourself. The mark (1) indicates work to be carried out by your Yamaha dealer. Item Actions Cleaning / adjustment / replacement Greasing Change Inspection Inspection / cleaning Inspection / cleaning Inspection / adjustment Inspection Inspection Cleaning Inspection Inspection / replacement / replacement / replacement / charging G/1 G/1 G G G/1 G/1 G G 1 1 G/1 1 G/1 G/1 1 1 1 1 G 1 Initial 10 hours 50 hours (1 month) (3 months) G G G G G Every 100 hours 200 hours (6 months) (1 year) G G G G G G Spark plug(s) Greasing points Gear oil Fuel system Fuel filter (can be disassembled) Fuel tank (Yamaha portable tank) Idling speed (carburetor models) Anode(s) (external) Anode(s) (internal) Cooling water passages Propeller and cotter pin Battery Throttle link / throttle cable / throttle pick-up timing Shift link / shift cable Oil tank water drain Oil pump Thermostat PCV (Pressure Control Valve) Power trim and tilt unit Water pump Cowling clamp G G G/1 Inspection / adjustment Inspection / adjustment Inspection / cleaning Inspection / adjustment Inspection Inspection Inspection Inspection Inspection NOTE: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. 4-9 E EMU01202 CLEANING AND ADJUSTING SPARK PLUG w When removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion or fire. The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For example, if the center electrode porcelain is very white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not attempt to diagnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. [. . . ] 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. [. . . ]