Engine control system

EMU26803

Alert system

ECM00091

NOTICE

Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected.

EMU2681A

Overheat alert

This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate.

●The engine speed will automatically de- crease to about 2000 r/min.

ZMU04766

●The overheat-alert indicator will light or blink.

ZMU01757

●The buzzer will sound (if equipped on the tiller handle, remote control box, or main switch panel).

If the alert system has activated, stop the engine and check the cooling water inlets:

●Check trim angle to be sure that the cool- ing water inlet is submerged.

●Check the cooling water inlet for clogging.

ZMU03026

EMU26848

Oil level alert and oil filter clogging alert

Oil injection models

This engine has an oil level alert system. If the oil level falls below the lower limit, the alert system will activate.

Activation of alert device

●Engine speed will automatically decrease to about 2000 r/min.

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