Engine Control System; Alert System; Overheat Alert; Low Oil Pressure Alert - Yamaha VF90 Owner's Manual

Engine control system

EMU26805

Alert system

ECM00093
NOTICE
Do not continue to operate the engine if an
alert device has activated. Consult your
Yamaha dealer if the problem cannot be
located and corrected.
EMU43754

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 2000–3500 r/min.
 The overheat-alert indicator will light or
blink (if equipped).
 The buzzer will sound (if equipped on the
tiller handle, remote control box, or main
switch panel).
40
If the alert system has activated, stop the en-
gine and check the cooling water inlets:
 Check trim angle to be sure that the cooling
water inlet is submerged.
 Check the cooling water inlet for clogging.
EMU41182

Low oil pressure alert

The outboard motor is equipped with a low oil
pressure alert system. If the engine oil pres-
sure is low, the alert system will activate.
 The engine speed will automatically de-
crease to about 2000–3500 r/min.
 The low oil pressure-alert indicator will
come on or blink.
ZMU01757
 The buzzer will sound.
ZMU06297
ZMU07012
ZMU01828