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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 lo-
cated and corrected.
EMU26827
Overheat alert
This engine has the overheat alert device. If
the engine temperature rises too high, the
alert device will activate.
The engine speed will automatically de-
G
crease to about 2000 r/min.
The overheat-alert indicator will light or
G
blink.
The buzzer will sound.
G
32
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
G
water inlet is submerged.
Check the cooling water inlet for clogging.
G
Dual engine drive users:
If the overheat-alert system of one engine ac-
tivates, the engine will slow down. To switch
off the alert activation on the engine not affect-
ed by overheating, turn off the main switch of
the engine overheating. If the alert system
has activated, stop the engine and tilt the out-
board motor up to check the cooling water in-
let for clogging. If the alert system has still
activated, tilt the overheated outboard motor
up and return to the port.
ZMU01757
EMU35025
Low oil pressure alert
If the oil pressure drops too low, the alert de-
vice will activate.
The engine speed will automatically de-
G
crease to about 2000 r/min. The low oil
pressure-alert indicator will light or blink.
ZMU04583
ON
ON
OFF
START
OFF
START
ZMU05827
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