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
75
Index
A
After removing the watercraft from the water ..................................................... 56
B
Battery care.............................................. 58
Battery checks ......................................... 42
Battery, jumping....................................... 73
Beaching the watercraft ........................... 55
Bilge water check..................................... 42
Bilge water, draining ................................ 35
Bilge water, draining on land ................... 35
Bilge water, draining on water ................. 35
Boarding and starting in deep water........ 54
Boarding and starting in shallow water.... 53
Bow eye ................................................... 28
C
Capsized watercraft ................................. 54
Check engine warning ............................. 25
Cleaning ................................................... 60
Cleaning the watercraft ............................ 58
Communication disconnecting warning ................................................. 25
Cooling water pilot outlet ......................... 22
Cooling water pilot outlet check .............. 46
Craft Identification Number (CIN)............... 1
Cruising limitations..................................... 9
E
Emergency procedures ............................ 72
Engine break-in ........................................ 38
Engine compartment check ..................... 41
Engine oil ................................................. 33
Engine oil and oil filter .............................. 68
Engine oil level check............................... 42
Engine oil requirements ........................... 33
Engine overheat warning ......................... 25
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 44
Engine shut-off switch ............................. 20
Engine stop/“L-MODE” switch ................ 20
Engine unit check..................................... 41
Enjoy your watercraft responsibly............ 15
Equipment ................................................ 26
F
Fire extinguisher check ............................ 45
Fire extinguisher holder............................ 29 Fire extinguisher holder, cover, and
band checks ......................................... 45
Flushing the cooling water passages....... 57
Fuel .......................................................... 31
Fuel level check........................................ 41
Fuel level meter ........................................ 24
Fuel level warning..................................... 24
Fuel requirements .................................... 31
Fuel system checks ................................. 41
G
Getting to know your watercraft .............. 47
Glossary, watercraft ................................. 16
H
Handlebar position, adjusting .................. 65
Hazard information................................... 13
Hood ........................................................ 26
Hood check .............................................. 46
Hull and deck check ................................ 45
I
Identification numbers ............................... 1
Indicator lights.......................................... 24
J
Jet intake and impeller, cleaning.............. 72
Jet intake checks ..................................... 45
Jet thrust nozzle angle, adjusting ............ 64
Jumper cables, connecting ...................... 73
L
Labels, important ....................................... 3
Labels, other .............................................. 7
Labels, warning .......................................... 4
Launching the watercraft ......................... 48
Learning to operate your watercraft......... 47
Leaving the watercraft.............................. 49
Limitations on who may operate the watercraft ................................................ 8
L-MODE ................................................... 23
Long-term storage ................................... 60
Lubrication ............................................... 60
M
Main components, location of ................. 17
Maintenance............................................. 63
Manufactured date label ............................ 2
Meter ........................................................ 24
Meter check ............................................. 46
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