User manual YAMAHA F80HP-1999

[. . . ] In this Owner's Manual particularly important information is distinguished in the following ways. The Safety Alert Symbol means ATTENTION!YOUR SAFETY IS INVOLVED! 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. [. . . ] 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. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If electrode erosion becomes excessive, or if carbon and other deposits are excessive, you should replace the spark plug with another of the correct type. Standard spark plug: Refer to "SPECIFICATIONS", page 4-1. Before fitting the spark plug, measure the electrode gap with a wire thickness gauge; adjust the gap to specification if necessary. Spark plug gap: Refer to "SPECIFICATIONS", page 4-1. 4-13 E When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the threads and screw in the spark plug to the correct torque. A flushing attachment or test tank can also be used. @ A diagnostic tachometer should be used for this procedure. Results may vary depending on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water. 1) Start the engine and allow it to warm up fully in neutral until it is running smoothly. If the outboard motor is mounted on a boat, be sure the boat is tightly moored. 2) Verify whether the idle speed is set to specification. For idle speed specifications, see "Specifications" in this chapter. NOTE: Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up fully, the idle speed will measure higher than normal. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic. @ @ 4-17 E EMU01415¯ CHANGING ENGINE OIL WARNING @ G G @ Avoid draining the engine oil immediately after stopping the engine. The oil is hot and should be handled with care to avoid burns. Be sure the outboard is securely fastened to the transom or a stable stand. CAUTION: @ G G G Change the engine oil after the first 10 hours of operation, and every 100 hours or at 6-month intervals thereafter. [. . . ] ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE OBLIGATIONS AND TIME LIMITS STATED IN THIS WARRANTY ARE HEREBY DISCLAIMED BY YAMAHA MOTOR CORPORATION, U. S. A. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. ALSO EXCLUDED FROM THIS WARRANTY ARE ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING LOSS OF USE. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU. [. . . ]