Page 51 of 116

Instrument operation
45
Displaying the time since the last mainte-
nance (“Wellness”)
The total number of hours that the engine has
been running since the last watercraft main-
tenance can be displayed.
To reset the number of hours of operation:
(1) Tap the “Reset” button.
(2) Tap the “Confirm Reset” button to reset
the number of hours of operation.
Resetting the settings, trip information,
and fuel information (“Reset”)
The settings, trip information, and fuel infor-
mation can be reset to their factory default
settings. The items that are reset and the de-
fault settings are as follows.
Display units: US Unit
Language: English
Display brightness: 100%
Color setting: Blue
Trip time: 0.0
Distance traveled: 0.0
Average fuel consumption per gallon or li-
ter: 0.0
Total fuel used: 0.0
To reset the settings, trip information, and
fuel information:
(1) Tap the “Reset” button.
(2) Tap the “YES” button in the confirmation
screen.
EJU45190Engine lock screen “ ”
The engine lock screen shows the setting
screen for the Yamaha Security System in the
center display. (See page 24 for Yamaha Se-
curity System setting procedures.)
EJU45201Warning 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
Reset
Time Since Last
Maintenance
30.0Hrs
Reset
Reset To
Factory?
UF3V70E0.book Page 45 Tuesday, August 28, 2018 10:16 AM
Page 53 of 116

Instrument operation
47
If the engine overheat warning is activated,
immediately reduce the engine speed, return
to shore, and then make sure that water is
being discharged from the port (left) cooling
water pilot outlet while the engine is running.
If there is no discharge of water, stop the en-
gine, and then check the jet intake for clog-
ging. (See page 99 for information on the jet
intake.) NOTICE: If you cannot locate and
correct the cause of the overheating, con-
sult a Yamaha dealer. Continuing to oper-
ate at higher speeds could result in severe
engine damage.
[ECJ00042]
TIP:
While the engine overheat warning is acti-
vated, the maximum engine speed is limit-
ed.
Tap “ ” to display a description of the
warning in the center display.
Oil pressure warning “ ”
If the oil pressure drops significantly, the
warning bar is shown instead of the tachom-
eter value display, “ ” and “ ” are
shown, and the buzzer sounds intermittently.
If the oil pressure warning is activated, imme-
diately reduce the engine speed, return to
shore, and then check the engine oil level.(See page 58 for information on checking the
engine oil level.) If the oil level is sufficient,
have a Yamaha dealer check the watercraft.
TIP:
While the oil pressure warning is activated,
the maximum engine speed is limited.
Tap “ ” to display a description of the
warning in the center display.
Other warnings (communication errors,
exceeding the maintenance intervals, and
so on) “ ”
If any other malfunction is detected or if the
engine has been operated for more than 50
hours since the last maintenance, the warn-
ing bar is shown instead of the tachometer
value display, “ ” is shown, and the buzz-
er sounds intermittently.
If a warning is activated, have the watercraft
serviced by a Yamaha dealer as soon as pos-
sible.
TIP:
Tap “ ” to display a description of the
warning in the center display.
UF3V70E0.book Page 47 Tuesday, August 28, 2018 10:16 AM
Page 103 of 116
Trouble recovery
97
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible56
Stale or contaminat-
edHave 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-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel injec-
tion systemFaulty or clogged in-
jectorsHave serviced by
Yamaha dealer—
Warning is dis-
playedFuel level
warningFuel tank empty Refill as soon as pos-
sible56
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer47
Engine over-
heat warningJet intake clogged Clean
99
Check en-
gine warningFaulty sensors Have serviced by
Yamaha dealer46 TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF3V70E0.book Page 97 Tuesday, August 28, 2018 10:16 AM
Page 104 of 116
Trouble recovery
98
Watercraft slow or
loses powerWatercraft
operation
modeDrive control mode
activatedDeactivate or adjust
drive control mode 35
Cavitation Jet intake clogged Clean 99
Impeller damaged or
wornHave serviced by
Yamaha dealer99
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine46
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
47
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-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel Stale or contaminat-
edHave 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— TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF3V70E0.book Page 98 Tuesday, August 28, 2018 10:16 AM