Yamaha WaveRunner EX 2023 Owner's/Operator's Manual page 48

Instrument operation
higher speeds could result in severe en-
gine damage.
[ECJ00042]
EJU44691
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 is stopped after the check en-
gine warning is activated, the tachometer
portion of the information display will show
the hour meter and error code alternately at
3-second intervals.
42
1 Error code
If the check engine warning is activated, im-
mediately reduce the engine speed, return to
shore, and have a Yamaha dealer check the
engine.
1