oil pressure YAMAHA EX DELUXE 2021 Owners Manual

Instrument operation
32
EJU44570
Multifunction information center
The multifunction information center displays
various watercraft information.
Multifunction information center initial op-
eration
When the multifunction information center is
activated, all of the display segments come
on. After 2 seconds, the warning indicators in
the information display go off, and then the
center starts to operate normally.
Multifunction information center standby
state
If the multifunction information center does
not receive any operation input within 30 sec-
onds after the engine stops, the center will
turn off and enter a standby state. When the
engine is started again, the displays return to
their state before the center turned off, and
then the center starts to operate normally.
EJU35027Information display
The information display shows watercraft op-
erating conditions.
EJU43832Speedometer
The speedometer shows the watercraft
speed against water.
By switching the display units, the speed can
be shown in kilometers per hour “km/h” or
miles per hour “MPH”.
TIP:
“MPH” is selected as the display unit at the
Yamaha factory.
1 Information display
2 “WARNING” indicator light
12
1Fuel level meter
2 Shift indicator (EX DELUXE / EX LIMITED)
3 Engine overheat warning indicator
4 Check engine warning indicator
5 Tachometer / hour meter / voltmeter
6 Oil pressure warning indicator
7 Fuel level warning indicator
8 Speedometer
1 Speedometer
251346
78
1
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Instrument operation
35
EJU44710Fuel level warning
If the fuel remaining in the fuel tank drops to
about 8 L (2.1 US gal, 1.8 Imp.gal), the lowest
fuel level segment, the fuel level warning indi-
cator, and the “WARNING” indicator light
blink, and the buzzer sounds intermittently for
30 seconds.
If the fuel level warning is activated, refill the
fuel tank as soon as possible. (See page 43
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 45 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
warning is activated, the maximum engine
speed is limited.
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 cooling water pilot
outlet while the engine is running. If there is
no discharge of water, stop the engine, and
then check the jet intake for clogging. (See
page 89 for information on the jet intake.)
NOTICE: If you cannot locate and correct
the cause of the overheating, consult a
Yamaha dealer. Continuing to operate at
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Trouble recovery
87
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible43
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 light or in-
dicator blinks or
comes on Fuel level
warning
Fuel tank empty Refill as soon as pos-
sible 43
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 35
Engine over-
heat warning Jet intake clogged Clean
89
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 36
TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
88
Watercraft slow or
loses powerCavitation Jet intake clogged Clean 89
Impeller damaged or
worn Have serviced by
Yamaha dealer
89
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
35
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
35
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—
TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Index
94
Maintenance ............................................ 80
Manufactured date label ............................ 2
Model information ...................................... 3
Multifunction information center .............. 32
Multifunction information center check ... 59
O
Oil pressure warning ................................ 35
Operating in weeded areas ...................... 72
Operating the watercraft .......................... 62
Operating the watercraft in reverse or neutral (EX SPORT / EX DELUXE / EX
LIMITED) ............................................... 66
Operating your watercraft ........................ 60
Operation requirements ........................... 11
P
Periodic maintenance chart ..................... 81
Post-launch checks ................................. 59
Post-operation care ................................. 74
Pre-launch checks ................................... 53
Pre-operation check points ..................... 53
Pre-operation checklist ............................ 51
Primary Identification (PRI-ID) number ...... 1
Pull-up cleats (EX LIMITED) ..................... 39
R
Raising the reverse gate (EX DELUXE / EX LIMITED).......................................... 90
Reboarding grip ....................................... 38
Reboarding step (EX SPORT / EX DELUXE / EX LIMITED) ......................... 38
Recommended equipment ...................... 13
Reverse system checks (EX SPORT) ....... 55
Reverse system (EX SPORT) ................... 28
RiDE lever checks (EX DELUXE / EX LIMITED) ............................................... 56
RiDE lever (EX DELUXE / EX LIMITED) .... 25
Riding position ......................................... 61
Rustproofing ............................................ 78
S
Safe boating rules .................................... 17
Safety equipment check .......................... 58
Seat .......................................................... 37
Seat storage compartment ...................... 41
Shift indicator (EX DELUXE / EX
LIMITED) ............................................... 33 Shift system check (EX DELUXE / EX
LIMITED) ............................................... 59
Shift system (EX DELUXE / EX LIMITED) ............................................... 29
Speedometer ........................................... 32
Start switch .............................................. 24
Starting off ............................................... 70
Starting off from a trailer .......................... 70
Starting the engine on water .................... 61
Steering system ....................................... 25
Steering system checks ........................... 55
Stern drain plug checks ........................... 58
Stern eyes ................................................ 39
Stopping the engine ................................. 62
Stopping the watercraft ........................... 65
Storage compartment checks.................. 57
Storage compartments ............................ 39
Submerged watercraft ............................. 91
Switch checks .......................................... 57
T
Tachometer .............................................. 33
Throttle lever ............................................ 25
Throttle lever checks ................................ 56
Towing the watercraft .............................. 91
Transporting on a trailer ........................... 49
Troubleshooting ....................................... 86
Troubleshooting chart .............................. 86
Turning the watercraft .............................. 64
W
Wakeboarding and water-skiing .............. 16
Water separator ....................................... 26
Water separator check ............................. 54
Watercraft characteristics ........................ 14
Watercraft control functions..................... 24
Watercraft operation functions ................ 28
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