2021 YAMAHA FX HO check engine

Trouble recovery
97
EJU34562
Troubleshooting
If you have any trouble with your watercraft, use the troubleshooting chart to check for the
possible cause.
If you cannot find the cause, consult a Yamaha dealer.
EJU45320Troubleshooting chart
Confirm the possible cause and remedy, and then refer to the applicable page.
TROUBLEPOSSIBLE CAUSE REMEDYPAGE
Engine does not
start (Starter motor
does not turn over) Ya m a h a S e -
curity System
Lock mode selected Select unlock mode
25
Engine shut-
off switch Clip not in place Install clip
26
Fuse Burned out Replace fuse and
check wiring 102
Battery Run down Recharge87
Poor terminal con-
nections Tighten as required
87
Terminal corroded Clean or replace 87
Starter motor Faulty Have serviced by
Yamaha dealer —
Engine does not
start (Starter motor
turns over) Throttle lever Squeezed
Release26
Faulty Have serviced by
Yamaha dealer —
RiDE lever Squeezed Release26
Faulty Have serviced by
Yamaha dealer —
Fuel Fuel tank empty Refill as soon as pos-
sible 57
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—
Fuel injec-
tion system Fuel pump faulty Have serviced by
Yamaha dealer —
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Trouble recovery
98
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible57
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 57
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 48
Engine over-
heat warning Jet intake clogged Clean
100
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 47
TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
100
EJU34625
Emergency proceduresEJU44590Cleaning the jet intake and impellerEWJ00783
Before attempting to remove weeds or de-
bris from the jet intake or impeller area,
shut the engine off and remove the clip
from the engine shut-off switch. Severe in-
jury or death could result from coming in
contact with the rotating parts of the jet
pump.
If weeds or debris gets caught in the jet intake
or impeller, cavitation can occur, causing jet
thrust to decrease even though engine speed
rises. If this condition is allowed to continue,
the engine will overheat and may seize.
NOTICE: If weeds or debris gets caught in
the jet intake, do not operate the water-
craft above trolling speed until they have
been removed.
[ECJ00654]
If there is any sign that the jet intake or impel-
ler is clogged with weeds or debris, return to
shore and check the intake and impeller. Al- ways stop the engine before beaching the
watercraft.
(1) Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches. Turn the
watercraft on its side as shown.
NOTICE: When turning the watercraft
on its side, support the bow so that
the handlebars are not bent or dam-
aged.
[ECJ02690]
(2) Remove any weeds or debris from around the jet intake, drive shaft, impel-
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106
Index
A
Adjustable tilt steering system ................. 28
Adjustable tilt steering system checks .... 68
After removing the watercraft from the water ..................................................... 85
B
Battery care.............................................. 87
Battery checks ......................................... 67
Battery, jumping..................................... 101
Beaching and docking the watercraft ...... 84
Beverage holder ....................................... 54
Bilge water check..................................... 67
Bilge water, draining ................................ 61
Bilge water, draining on land ................... 61
Bilge water, draining on water ................. 61
Boarding alone ......................................... 80
Boarding and starting off from a dock ..... 83
Boarding the watercraft ........................... 80
Boarding with passenger(s) ..................... 81
Bow eye ................................................... 51
Bow storage compartment ...................... 52
Builder’s plate ............................................ 2
C
Capsized watercraft ................................. 83
Cleaning ................................................... 89
Cleaning the watercraft ............................ 87
Cleat ......................................................... 51
Cooling water pilot outlet ......................... 29
Cooling water pilot outlet check .............. 72
Craft Identification Number (CIN)............... 1
Cruise assist............................................. 38
Cruising limitations................................... 11
D
Drive control mode................................... 36
Drive control mode screen ....................... 44
E
Electric trim system.................................. 32
Electric trim system check ....................... 70
Emergency procedures .......................... 100
Engine break-in ........................................ 63
Engine compartment check ..................... 66
Engine cover, removing and installing ..... 91
Engine idling speed check ....................... 73
Engine lock screen ................................... 46
Engine oil ................................................. 59 Engine oil and oil filter .............................. 95
Engine oil level check ............................... 67
Engine oil requirements ........................... 59
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 69
Engine shut-off switch ............................. 26
Engine stop switch ................................... 26
Engine unit check ..................................... 67
Enjoy your watercraft responsibly ............ 19
Equipment ................................................ 49
F
Fire extinguisher check ............................ 71
Fire extinguisher holder and cover........... 55
Fire extinguisher holder, cover, and
band checks ......................................... 70
Flushing the cooling water passages....... 86
Fuel .......................................................... 57
Fuel level check........................................ 66
Fuel requirements .................................... 57
Fuel system checks ................................. 66
Fuses, replacing ..................................... 102
G
Getting to know your watercraft .............. 74
Glossary, watercraft ................................. 20
Glove compartment ................................. 53
H
Handgrip .................................................. 50
Hazard information................................... 15
Home screen ............................................ 42
Hood check .............................................. 72
Hull and deck check ................................ 71
I
Identification numbers ............................... 1
Information screen ................................... 43
J
Jet intake and impeller, cleaning............ 100
Jet intake checks ..................................... 71
Jet thrust nozzle and reverse gate check .................................................... 71
Jumper cables, connecting .................... 101
L
Labels, important ....................................... 4
Labels, other .............................................. 8
Labels, warning .......................................... 5
Launching the watercraft ......................... 75
UF3V72E0.book Page 106 Tuesday, June 16, 2020 2:29 PM

Index
107
Learning to operate your watercraft ........ 74
Leaving the watercraft ............................. 76
Limitations on who may operate the watercraft.............................................. 10
Long-term storage ................................... 89
Lubrication ............................................... 89
M
Main components, location of ................. 21
Maintenance ............................................ 91
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 40
Multifunction information center check ... 72
N
No-wake mode ........................................ 35
O
Operating in weeded areas ...................... 84
Operating the watercraft .......................... 76
Operating the watercraft in reverse or neutral ................................................... 79
Operating your watercraft ........................ 74
Operation buttons .................................... 41
Operation requirements ........................... 12
Optional part mounting bracket ............... 56
P
Periodic maintenance chart ..................... 93
Post-launch checks ................................. 72
Post-operation care ................................. 86
Pre-launch checks ................................... 66
Pre-operation check points ..................... 66
Pre-operation checklist ............................ 64
Primary Identification (PRI-ID) number ...... 1
Pull-up cleats (FX CRUISER HO) ............. 52
R
Raising the reverse gate ........................ 101
Reboarding grip ....................................... 50
Reboarding step ...................................... 50
Recommended equipment ...................... 14
Removable watertight storage compartment ........................................ 54
Reverse assist .......................................... 34
RiDE lever................................................. 27
RiDE lever checks .................................... 69
Riding position ......................................... 75
Rustproofing ............................................ 90 S
Safe boating rules .................................... 18
Safety equipment check .......................... 71
Seats ........................................................ 49
Setting menu screen ................................ 44
Shift system ............................................. 30
Shift system check ................................... 72
Start switch .............................................. 26
Starting off ............................................... 82
Starting off from a trailer .......................... 83
Starting the engine on water .................... 75
Status area ............................................... 42
Steering system ....................................... 27
Steering system checks ........................... 68
Stern drain plug checks ........................... 71
Stern eyes ................................................ 51
Stern storage compartment ..................... 53
Stopping the engine ................................. 76
Stopping the watercraft ........................... 78
Storage compartment checks.................. 70
Storage compartments ............................ 52
Submerged watercraft ........................... 104
Switch checks .......................................... 69
T
T.D.E. (thrust directional enhancer) .......... 34
Throttle lever ............................................ 27
Throttle lever checks ................................ 69
Touch screen ........................................... 41
Towing the watercraft ............................ 104
Transporting on a trailer ........................... 62
Troubleshooting ....................................... 97
Troubleshooting chart .............................. 97
Turning the watercraft .............................. 77
W
Wakeboarding and water-skiing .............. 17
Warning function ...................................... 46
Water separator ....................................... 29
Water separator check ............................. 67
Watercraft characteristics ........................ 15
Watercraft control functions..................... 25
Watercraft operation functions ................ 30
Watercraft operation modes .................... 34
Y
Yamaha Security System ......................... 25
Yamaha Security System check .............. 69
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