Trouble recovery
95
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible54
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 is dis-
played Fuel level
warningFuel tank empty Refill as soon as pos-
sible 54
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 43
Engine over-
heat warning Jet intake clogged Clean
97
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 42
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF4S71E0.book Page 95 Wednesday, August 4, 2021 5:18 PM
Trouble recovery
96
Watercraft slow or
loses powerWatercraft
operation
modeDrive control mode
activated
Deactivate or adjust
drive control mode 33
Cavitation Jet intake clogged Clean 97 Impeller damaged or
worn Have serviced by
Yamaha dealer
97
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
43
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
43
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—
Audio system does
not activate
(equipped models) Fuse Burned out Have serviced by
Yamaha dealer —
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF4S71E0.book Page 96 Wednesday, August 4, 2021 5:18 PM
101
Index
A
Accessory outlet ...................................... 45
After removing the watercraft from the water ..................................................... 81
Audio control............................................ 44
Audio system (equipped models) ............ 44
B
Battery care.............................................. 83
Battery checks ......................................... 64
Battery, jumping....................................... 98
Beaching and docking the watercraft ...... 80
Bilge water check..................................... 64
Bilge water, draining ................................ 58
Bilge water, draining on land ................... 58
Bilge water, draining on water ................. 58
Boarding alone ......................................... 76
Boarding and starting off from a dock ..... 79
Boarding the watercraft ........................... 76
Boarding with passenger(s) ..................... 77
Bow eye ................................................... 49
Bow storage compartment ...................... 50
Builder’s plate ............................................ 3
C
Capsized watercraft ................................. 79
Cleaning ................................................... 85
Cleaning the watercraft ............................ 83
Cleat ......................................................... 49
Cooling water pilot outlet ......................... 26
Cooling water pilot outlet check .............. 68
Craft Identification Number (CIN)............... 1
Cruise assist............................................. 35
Cruising limitations................................... 10
D
Display ..................................................... 37
Drive control mode................................... 33
Drive control mode screen ....................... 40
E
Emergency procedures ............................ 97
Engine break-in ........................................ 60
Engine compartment check ..................... 63
Engine cover, removing and installing ..... 87
Engine idling speed check ....................... 69
Engine lock screen ................................... 41
Engine oil ................................................. 56
Engine oil and oil filter .............................. 91 Engine oil level check ............................... 64
Engine oil requirements ........................... 56
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 65
Engine shut-off switch ............................. 25
Engine start/stop switch .......................... 25
Engine unit check ..................................... 64
Enjoy your watercraft responsibly ............ 18
Equipment ................................................ 47
F
Fire extinguisher check ............................ 67
Fire extinguisher holder and cover........... 53
Fire extinguisher holder, cover, and
band checks ......................................... 66
Flushing the cooling water passages....... 82
Fuel .......................................................... 54
Fuel level check........................................ 63
Fuel requirements .................................... 54
Fuel system checks ................................. 63
G
Getting to know your watercraft .............. 70
Glossary, watercraft ................................. 19
Glove compartment ................................. 51
H
Handgrip .................................................. 48
Hazard information................................... 14
Home screen ............................................ 39
Hood check .............................................. 68
Hull and deck check ................................ 67
I
Identification numbers ............................... 1
Information screen ................................... 39
J
Jet intake and impeller, cleaning.............. 97
Jet intake checks ..................................... 67
Jet thrust nozzle and reverse gate check .................................................... 67
Jumper cables, connecting ...................... 98
L
Labels, important ....................................... 4
Labels, other .............................................. 8
Labels, warning .......................................... 5
Launching the watercraft ......................... 71
Learning to operate your watercraft......... 70
Leaving the watercraft.............................. 72
UF4S71E0.book Page 101 Wednesday, August 4, 2021 5:18 PM
Index
102
Limitations on who may operate the watercraft................................................ 9
Long-term storage ................................... 85
Lubrication ............................................... 85
M
Main components, location of ................. 20
Maintenance ............................................ 87
Manufactured date label ............................ 2
Model information ...................................... 3
Multifunction information center .............. 37
Multifunction information center check ... 68
N
No-wake mode ........................................ 32
O
Operating in weeded areas ...................... 80
Operating the watercraft .......................... 72
Operating the watercraft in reverse or neutral ................................................... 75
Operating your watercraft ........................ 70
Operation buttons .................................... 37
Operation requirements ........................... 11
P
Periodic maintenance chart ..................... 89
Post-launch checks ................................. 68
Post-operation care ................................. 82
Pre-launch checks ................................... 63
Pre-operation check points ..................... 63
Pre-operation checklist ............................ 61
Primary Identification (PRI-ID) number ...... 1
Pull-up cleats ........................................... 50
R
Raising the reverse gate .......................... 98
Reboarding grip ....................................... 48
Reboarding step ...................................... 48
Recommended equipment ...................... 13
Reverse assist .......................................... 31
RiDE lever................................................. 26
RiDE lever checks .................................... 65
Riding position ......................................... 71
Rustproofing ............................................ 86
S
Safe boating rules .................................... 17
Safety equipment check .......................... 67
Seat storage compartment ...................... 52
Seats ........................................................ 47 Setting menu screen ................................ 40
Shift system ............................................. 28
Shift system check ................................... 68
Starting off ............................................... 78
Starting off from a trailer .......................... 79
Starting the engine on water .................... 71
Steering system ....................................... 26
Steering system checks ........................... 64
Stern drain plug checks ........................... 67
Stern eyes ................................................ 49
Stopping the engine ................................. 72
Stopping the watercraft ........................... 74
Storage compartment checks.................. 66
Storage compartments ............................ 50
Submerged watercraft ............................. 99
Switch checks .......................................... 66
T
T.D.E. (thrust directional enhancer) .......... 31
Throttle lever ............................................ 25
Throttle lever checks ................................ 65
Towing the watercraft .............................. 99
Transporting on a trailer ........................... 59
Troubleshooting ....................................... 94
Troubleshooting chart .............................. 94
Turning the watercraft .............................. 73
U
USB charger............................................. 46
W
Wakeboarding and water-skiing .............. 16
Warning function ...................................... 42
Water separator ....................................... 27
Water separator check ............................. 63
Watercraft characteristics ........................ 14
Watercraft control functions..................... 24
Watercraft operation functions ................ 28
Watercraft operation modes .................... 31
Y
Yamaha Security System ......................... 24
Yamaha Security System check .............. 65
Yamaha Security System setting ............. 24
UF4S71E0.book Page 102 Wednesday, August 4, 2021 5:18 PM