Instrument operation
24
EJU45701
Meter
When the meter is activated, all of the fuel
level meter segments and all indicators come
on. After a few seconds, the fuel level meter
displays the remaining amount of fuel and all
indicators go off.
EJU45620Fuel level meter
The fuel level meter shows the amount of fuel
remaining in the fuel tank. The amount of re-
maining fuel is shown using four display seg-
ments, which disappear one at a time as the
fuel level decreases.
TIP:
The accuracy of the fuel level meter varies
depending on the operating conditions. Use
this function as a reference only.
EJU45631Fuel level warning
If the fuel remaining in the fuel tank drops to
about 6.0 L (1.59 US gal, 1.32 Imp.gal), the
lowest fuel level segment blinks.
If the fuel level warning is activated, refill the
fuel tank as soon as possible. (See page 31
for information on filling the fuel tank.)
EJU45641Indicator lights
EJU45650Oil pressure warning
If the oil pressure drops significantly, the
“WARNING” indicator light blinks. At the
1“WARNING” indicator light
2 “L-MODE” indicator light
3 Fuel level meter
1 Fuel level meter
1
2 3
1
1
“WARNING” indicator light
2 “L-MODE” indicator light
1
2
UF4R71E0.book Page 24 Monday, May 10, 2021 1:14 PM
Instrument operation
25
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 33 for information on checking the
engine oil level.) If the oil level is sufficient,
have a Yamaha dealer check the watercraft.
EJU45660Engine overheat warning
If the engine temperature rises significantly,
the “WARNING” indicator light comes on.
While the engine overheat warning is activat-
ed, 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 72 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 higher speeds could result in severe en-
gine damage.
[ECJ00042]
EJU45681
Check engine warning
If a sensor malfunction or a short circuit is de-
tected, the “WARNING” indicator light blinks
once for several seconds.
If the check engine warning is activated, im-
mediately reduce the engine speed, return to
shore, and have a Yamaha dealer check the
engine.
EJU45690Communication disconnecting warning
If communication disconnecting is detected,
the “WARNING” indicator light and “L-
MODE” indicator light blink.
If the communication disconnecting warning
is activated, have the watercraft serviced by
a Yamaha dealer as soon as possible.
UF4R71E0.book Page 25 Monday, May 10, 2021 1:14 PM
Trouble recovery
71
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible31
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 31
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 24
Engine over-
heat warning Jet intake clogged Clean
72
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 25
Watercraft slow or
loses power Cavitation Jet intake clogged Clean 72
Impeller damaged or
worn Have serviced by
Yamaha dealer
72
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
25
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
24
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
—
Throttle lever Faulty Have serviced by Yamaha dealer—
L-MODE L-MODE is activat- ing. Deactivate the L-
MODE.
23
T
R
OUBLE
POSSIBLE CAUSE REMEDYPAGE
UF4R71E0.book Page 71 Monday, May 10, 2021 1:14 PM
Index
76
O
Oil pressure warning ................................ 24
Operating in weeded areas ...................... 55
Operating positions.................................. 47
Operating the watercraft .......................... 49
Operating your watercraft ........................ 47
Operation requirements ........................... 10
P
Periodic maintenance chart ..................... 66
Post-launch checks ................................. 46
Post-operation care ................................. 57
Pre-launch checks ................................... 41
Pre-operation check points ..................... 41
Pre-operation checklist ............................ 39
Primary Identification (PRI-ID) number ...... 1
R
Reboarding holder ................................... 28
Recommended equipment ...................... 12
Rustproofing ............................................ 61
S
Safe boating rules .................................... 14
Safety equipment check .......................... 45
Start switch .............................................. 20
Starting off ............................................... 52
Starting the engine on water .................... 48
Steering friction, adjusting ....................... 63
Steering pole ............................................ 22
Steering pole check ................................. 43
Steering system ....................................... 21
Steering system checks ........................... 42
Stern drain plug checks ........................... 45
Stern eyes ................................................ 28
Stopping the engine ................................. 49
Stopping the watercraft ........................... 51
Storage pouch ......................................... 28
Storage pouch checks ............................. 44
Submerged watercraft ............................. 74
Switch checks .......................................... 44
T
Throttle lever ............................................ 21
Throttle lever checks ................................ 43
Towing the watercraft .............................. 73
Transporting on a trailer ........................... 36
Troubleshooting ....................................... 70
Troubleshooting chart .............................. 70Turning the watercraft .............................. 50
W
Water separator ....................................... 22
Water separator check ............................. 41
Watercraft characteristics ........................ 13
Watercraft control functions..................... 20
Watercraft operation modes .................... 23
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