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    UF4N10E0.book  Page 49  Tuesday, September 29, 2020  8:02 AM

                            Instrument operation

                            EJU43901                              higher speeds could result in severe en-
                            Engine overheat warning
                            If the engine temperature rises significantly,  gine damage. [ECJ00042]
                            the engine overheat warning indicator, the
                            check  engine warning indicator, and the
                            “WARNING” indicator light blink, and the
                            buzzer sounds intermittently. After 5  sec-
                            onds, the engine overheat warning indicator
                            and the “WARNING” indicator light stop
                            blinking  and remain on,  and the  buzzer
                            sounds continuously. After 30 seconds, the
                            buzzer stops. While the engine overheat
                            warning is activated, the  maximum  engine
                                                                  EJU44690
                            speed is limited.                     Check engine warning
                                                                  If a sensor malfunction or a short circuit is de-
                                                                  tected,  the check engine  warning indicator
                                                                  and the “WARNING” indicator light blink, and
                                                                  the buzzer sounds intermittently for 30 sec-
                                                                  onds.

                            If the engine overheat warning is activated,
                            immediately reduce the engine speed, return
                            to shore, and then make sure that water is
                            being discharged from the cooling water pilot
                            outlet while the engine is running. If there is
                            no discharge of water, stop the engine, and  If the engine is stopped after the check en-
                            then check the jet intake for clogging. (See  gine warning is  activated, the  tachometer
                            page 113 for information on the jet intake.)  portion of the information display will show
                            NOTICE: If you cannot locate and correct
                            the  cause of the  overheating, consult  a
                            Yamaha dealer. Continuing to operate at

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