Instrument operation
42
center display. (See page 24 for Yamaha Se-
curity System setting procedures.)
EJU46400Warning function
The multifunction information center can indi-
cate the following warnings.
Fuel level warning
Battery voltage warning
Check engine warning
Engine overheat warning
Oil pressure warning
Other warnings (communication errors, ex-
ceeding the maintenance intervals, and so
on)
To stop the buzzer when a malfunction is ac-
tivated, correct the cause of the problem and
start the engine again, or push the “OK” but-
ton of the touchpad control.
Fuel level warning
If the amount of remaining fuel is low, the low-
est fuel level segment blinks orange, “Low
Fuel” is displayed on the display, and the
buzzer sounds intermittently. If the fuel level warning is activated, refill the
fuel tank as soon as possible. (See page 54
for information on filling the fuel tank.)
Battery voltage warning
If the battery voltage is less than 12 volts or
more than 18 volts when the engine is not
running, the voltage display of the voltmeter
blinks.
If the battery voltage warning is activated,
have the watercraft serviced by a Yamaha
dealer as soon as possible.
Check engine warning “ ”
If a sensor malfunction or a short circuit is
detected, “ ” is shown in the warning bar,
and the buzzer sounds intermittently.
If the check engine warning is activated, im-
mediately reduce the engine speed, return to
1
“OK” button
1
14.3V
km/h
RPM
Low
Fuel
10.8V
km/h
RPM
UF4S71E0.book Page 42 Wednesday, August 4, 2021 5:18 PM
Trouble recovery
95
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible54
Stale or contaminat-
ed Have serviced by
Yamaha dealer
—
Fuel tank Water or dirt present Have serviced by Yamaha dealer—
Spark plug Fouled or defective Have serviced by Yamaha dealer—
Incorrect heat range Have serviced by Yamaha dealer —
Gap incorrect Have serviced by Yamaha dealer —
Electrical wir-
ing Loose connection Have serviced by
Yamaha dealer —
Fuel injec-
tion system Faulty or clogged in-
jectors Have serviced by
Yamaha dealer
—
Warning is dis-
played Fuel level
warningFuel tank empty Refill as soon as pos-
sible 54
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 43
Engine over-
heat warning Jet intake clogged Clean
97
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 42
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF4S71E0.book Page 95 Wednesday, August 4, 2021 5:18 PM
Trouble recovery
96
Watercraft slow or
loses powerWatercraft
operation
modeDrive control mode
activated
Deactivate or adjust
drive control mode 33
Cavitation Jet intake clogged Clean 97 Impeller damaged or
worn Have serviced by
Yamaha dealer
97
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
43
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
43
Spark plug Fouled or defective Have serviced by Yamaha dealer—
Incorrect heat range Have serviced by Yamaha dealer —
Gap incorrect Have serviced by Yamaha dealer —
Electrical wir-
ing Loose connection Have serviced by
Yamaha dealer —
Fuel Stale or contaminat- ed Have serviced by
Yamaha dealer
—
Air filter Clogged Have serviced by Yamaha dealer—
Oil buildup Have serviced by Yamaha dealer —
Throttle lever Faulty Have serviced by Yamaha dealer—
Audio system does
not activate
(equipped models) Fuse Burned out Have serviced by
Yamaha dealer —
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF4S71E0.book Page 96 Wednesday, August 4, 2021 5:18 PM
