I have a 2001 Yamaha F115 4 Stroke that starts and runs fine, however lately an alarm has been sounding at high RPM (between 5300-5800). <br />Neither the oil or overtemp indicator go on and the motor continues to run smoothly (although I quickly slow down when the alarm sounds). <br />After letting the motor idle for a minute or so I run it back up slowly to 4,500 RPM or so and everything seems fine. The water pump outlet stream seems normal as does everything else. Anybody have any ideas?<br />Thanks