low oil pressure YAMAHA VX 2018 Owners Manual

Instrument operation
40
TIP:
The accuracy of the fuel level meter varies
depending on the operating conditions. Use
this function as a reference only.
EJU44020Fuel level warning
If the fuel remaining in the fuel tank drops to
about 18 L (4.8 US gal, 4.0 Imp.gal), the low-
est two fuel level segments, the fuel level
warning indicator, and the “WARNING” indi-
cator light blink, and the buzzer sounds inter-
mittently for 30 seconds.
If the fuel level warning is activated, refill the
fuel tank as soon as possible. (See page 50
for information on filling the fuel tank.)
After the fuel tank is refilled, the warning sig-
nals will be cleared when the engine is re-
started.
EJU43720Oil pressure warning
If the oil pressure drops significantly, the oil
pressure warning indicator, the check engine
warning indicator, and the “WARNING” indi-
cator light blink, and the buzzer sounds inter-
mittently for 30 seconds. At the same time,
the maximum engine speed is limited.
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 53 for information on checking the
engine oil level.) If the oil level is sufficient,
have a Yamaha dealer check the watercraft.
EJU43901Engine overheat warning
If the engine temperature rises significantly,
the engine overheat warning indicator, the
check engine warning indicator, and the
“WARNING” indicator light blink, and the
buzzer sounds intermittently. After 5 sec-
onds, the engine overheat warning indicator
and the “WARNING” indicator light stop
blinking and remain on, and the buzzer
sounds continuously. After 30 seconds, the
buzzer stops. While the engine overheat
1Fuel level meter
1
UF4G72E0.book Page 40 Tuesday, August 1, 2017 11:30 AM

Trouble recovery
93
Watercraft slow or
loses powerWatercraft
operation
mode
(VX Deluxe /
VX Cruiser /
VX Limited)Low RPM Mode acti-
vatedDeactivate Low RPM
Mode
33
Cavitation Jet intake clogged Clean 94
Impeller damaged or
wornHave serviced by
Yamaha dealer94
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine40
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
40
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
UF4G72E0.book Page 93 Tuesday, August 1, 2017 11:30 AM

Index
99
Low RPM Mode
(VX Deluxe / VX Cruiser / VX Limited) ... 33
Lubrication ............................................... 84
M
Main components, location of ................. 21
Maintenance ............................................ 86
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 38
Multifunction information center check ... 66
N
No-wake mode
(VX Deluxe / VX Cruiser / VX Limited) ... 34
O
Oil pressure warning ................................ 40
Operating in weeded areas ...................... 78
Operating the watercraft .......................... 70
Operating the watercraft in reverse or
neutral ................................................... 73
Operating your watercraft ........................ 68
Operation requirements ........................... 12
P
Periodic maintenance chart ..................... 87
Post-launch checks ................................. 66
Post-operation care ................................. 80
Pre-launch checks ................................... 60
Pre-operation check points ..................... 60
Pre-operation checklist ............................ 58
Primary Identification (PRI-ID) number ...... 1
Pull-up cleats (VX Limited) ....................... 46
R
Raising the reverse gate .......................... 95
Reboarding step ...................................... 44
Recommended equipment ...................... 14
Remote control transmitter check
(VX Deluxe / VX Cruiser / VX Limited) ... 63
Remote control transmitter
(VX Deluxe / VX Cruiser / VX Limited) ... 25
Removable watertight storage
compartment ........................................ 48
RiDE lever................................................. 28
RiDE lever checks .................................... 63
Riding position ......................................... 69
Rustproofing ............................................ 84S
Safe boating rules .................................... 18
Safety equipment check .......................... 65
Seats ........................................................ 43
Shift indicator ........................................... 39
Shift system ............................................. 31
Shift system check ................................... 66
Speedometer ........................................... 38
Start switch .............................................. 27
Starting off ............................................... 76
Starting off from a trailer .......................... 77
Starting the engine on water .................... 69
Steering system ....................................... 28
Steering system checks ........................... 62
Stern drain plug checks ........................... 65
Stern eyes ................................................ 45
Stopping the engine ................................. 70
Stopping the watercraft ........................... 72
Storage compartment checks.................. 64
Storage compartments ............................ 46
Submerged watercraft ............................. 96
Switch checks .......................................... 64
T
Tachometer .............................................. 39
Throttle lever ............................................ 28
Throttle lever checks ................................ 63
Tool kit ..................................................... 86
Towing the watercraft .............................. 96
Transporting on a trailer ........................... 56
Troubleshooting ....................................... 91
Troubleshooting chart .............................. 91
Turning the watercraft .............................. 71
V
Voltmeter .................................................. 41
W
Wakeboarding and water-skiing .............. 17
Water separator ....................................... 29
Water separator check ............................. 60
Watercraft characteristics ........................ 15
Watercraft control functions..................... 25
Watercraft operation functions ................ 31
Watercraft operation modes .................... 33
Y
Yamaha Security System settings ........... 26
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