2021 YAMAHA FX HO CRUISER ECU

Table of contents
General and important labels ........... 1Identification numbers .................... 1
Primary Identification (PRI-ID)
number............................................ 1
Craft Identification Number (CIN) ....... 1
Engine serial number.......................... 1
Manufactured date label .................... 2
Model information ........................... 2
Builder’s plate .................................... 2
Important labels .............................. 4
Warning labels.................................... 5
Other labels ........................................ 8
Safety information ........................... 10 Limitations on who may operate the watercraft ............................. 10
Cruising limitations ........................ 11
Operation requirements ................ 12
Recommended equipment ........... 14
Hazard information........................ 15
Watercraft characteristics ............. 15
Wakeboarding and water-skiing ... 17
Safe boating rules ......................... 18
Enjoy your watercraft responsibly ................................. 19
Description....................................... 20 Watercraft glossary ....................... 20
Location of main components ...... 21
Control function operation ............. 25 Watercraft control functions ......... 25
Yamaha Security System ................. 25
Engine stop switch .......................... 26
Engine shut-off switch .................... 26
Start switch ..................................... 26
Throttle lever .................................... 27
RiDE lever ........................................ 27
Steering system ............................... 27
Adjustable tilt steering system ......... 28
Cooling water pilot outlet ................. 29
Water separator................................ 29
Watercraft operation ...................... 30Watercraft operation functions ..... 30
Shift system ..................................... 30
Electric trim system .......................... 32
Watercraft operation modes ......... 34
Reverse assist .................................. 34
T.D.E. (thrust directional
enhancer) ...................................... 34
No-wake mode ................................. 35
Drive control mode ........................... 36
Cruise assist ..................................... 38
Instrument operation ...................... 40 Multifunction information center ... 40
Operation buttons ............................ 41
Touch screen.................................... 41
Status area ....................................... 42
Home screen ................................... 42
Information screen .......................... 43
Drive control mode screen .............. 44
Setting menu screen ....................... 44
Engine lock screen .......................... 46
Warning function .............................. 46
Equipment operation ...................... 49Equipment..................................... 49
Seats ................................................ 49
Handgrip........................................... 50
Reboarding grip................................ 50
Reboarding step ............................... 50
Bow eye............................................ 51
Stern eyes ........................................ 51
Cleat ................................................. 51
Pull-up cleats (FX CRUISER HO) ..... 52
Storage compartments .................... 52
Fire extinguisher holder and cover ... 55
Optional part mounting bracket ....... 56
Operation and handling
requirements ................................... 57Fuel requirements ......................... 57
Fuel................................................... 57
Engine oil requirements ................ 59
Engine oil .......................................... 59
UF3V72E0.book Page 1 Tuesday, June 16, 2020 2:29 PM

Control function operation
25
EJU31026
Watercraft control functionsEJU45090Yamaha Security System
The Yamaha Security System functions to
help prevent unauthorized use or theft of the
watercraft. The lock and unlock modes of the
security system can be selected using the
engine lock screen of the multifunction infor-
mation center. The engine cannot be started
if the lock mode of the security system is se-
lected. The engine can only be started if the
unlock mode is selected.
TIP:
The Yamaha Security System setting can
only be selected while the engine is stopped.
EJU45100Yamaha Security System settingThe Yamaha Security System setting can be
confirmed by the lock or unlock mode indica-
tor on the multifunction information center.
To select the lock or unlock mode of the
Yamaha Security System:
(1) Stop the engine.
TIP:
If the multifunction information center is
turned off because the engine is stopped,
perform one of the following operations to
turn on the center without starting the engine.
Push the start switch briefly.
While pushing the engine stop switch,
push the start switch. (2) Tap the lock or unlock mode indicator on
the multifunction information center.
(3) Flick up or down to set each digit of the 4-digit PIN, and then tap the “Enter” but-
ton.
TIP:
The default setting for the PIN is “1234”. The
PIN can also be changed. (See page 44 for in-
formation on changing the PIN.)
(4) Tap “ON” to select the lock mode of theYamaha Security System or tap “OFF” toselect the unlock mode, and then tap
“Save”.
(5) The beeper sounds once when the lock mode of the Yamaha Security System is
selected and two times when the unlock
mode is selected, and the multifunction
information center returns to the home
screen.
1Lock mode indicator
2 Unlock mode indicator
1
2
Enter
Enter PIN
0
9
1
0
9
1
0
9
1
0
9
1
ONOFF
Engine Lock
Save
UF3V72E0.book Page 25 Tuesday, June 16, 2020 2:29 PM

Control function operation
27
will not start. Also, the starter motor could
be damaged.
[ECJ01041]
The engine will not start under any of the fol-
lowing conditions:
Lock mode of the Yamaha Security System
has been selected. (See page 25 for
Yamaha Security System setting proce- dures.)
Clip is removed from the engine shut-off
switch.
Throttle lever is squeezed.
Throttle lever is malfunctioning.
RiDE lever is squeezed.
RiDE lever is malfunctioning.EJU31212Throttle lever
The throttle lever increases the engine speed
when the lever is squeezed.
The throttle lever returns automatically to its
fully closed (idle) position when released.
EJU43342RiDE lever
When the RiDE lever is squeezed, the reverse
gate lowers and the watercraft starts moving
in reverse. If the watercraft is moving forward,
the watercraft gradually slows down until it
stops, and then the watercraft starts moving
in reverse.
When the RiDE lever is released, it automati-
cally returns to its fully closed (idle) position
and the reverse gate moves to the neutral po-
sition.
EJU31262Steering system
By turning the handlebars in the direction you
wish to travel, the angle of the jet thrust noz-
1 Start switch
1 Throttle lever
1
1
1RiDE lever
1
UF3V72E0.book Page 27 Tuesday, June 16, 2020 2:29 PM

Control function operation
29
(2) Make sure that the tilt lever returns to itsoriginal position and that the handlebars
are securely locked in place.
EJU35975Cooling water pilot outlet
When the engine is running, some of the
cooling water that is circulated in the engine
is discharged from the cooling water pilot
outlet.
There is a cooling water pilot outlet on the
port (left) side of the watercraft. To check for
proper operation of the cooling system, make
sure that water is being discharged from the
cooling water pilot outlet. If water is not being
discharged from the outlet, stop the engine
and check the jet intake for clogging. (See
page 100 for information on the jet intake.)
TIP:
It will take about 60 seconds for the water
to reach the outlet after the engine is start-
ed.
Water discharge may not be constant
when the engine is running at idling speed.
If this occurs, apply a little throttle to make
sure that water discharges properly.
EJU40323Water separator
The water separator prevents water from en-
tering the fuel tank by collecting any water
that has entered the fuel tank breather hose if
the watercraft was capsized.
If water has collected in the water separator,
drain it by loosening the drain screw.
To drain water from the water separator:
(1) Place a drain pan or dry cloth under thewater separator.
(2) Gradually loosen the drain screw to drain the water. Catch the draining water in the
drain pan or soak it up with the dry cloth
so that it does not spill into the engine
compartment. If any water spills into the
watercraft, be sure to wipe it up with a
dry cloth.
(3) Securely tighten the drain screw until it stops.1Cooling water pilot outlet
1
1Water separator
2 Drain screw
2
1
UF3V72E0.book Page 29 Tuesday, June 16, 2020 2:29 PM

Instrument operation
46
Displaying the time since the last mainte-
nance (“Wellness”)
The total number of hours that the engine has
been running since the last watercraft main-
tenance can be displayed.
To reset the number of hours of operation:
(1) Tap the “Reset” button.
(2) Tap the “Confirm Reset” button to resetthe number of hours of operation.
Resetting the settings, trip information,
and fuel information (“Reset”)
The settings, trip information, and fuel infor-
mation can be reset to their factory default
settings. The items that are reset and the de-
fault settings are as follows.
Display units: US Unit
Language: English
Display brightness: 100%
Color setting: Blue
Trip time: 0.0
Distance traveled: 0.0
Average fuel consumption per gallon or li-
ter: 0.0
Total fuel used: 0.0
To reset the settings, trip information, and
fuel information:
(1) Tap the “Reset” button.
(2) Tap the “YES” button in the confirmation screen.
EJU45190Engine lock screen “ ”
The engine lock screen shows the setting
screen for the Yamaha Security System in the
center display. (See page 25 for Yamaha Se-
curity System setting procedures.)
EJU45202Warning function
The multifunction information center can indi-
cate the following warnings.
Fuel level warning
Battery voltage warning
Check engine warning
Engine overheat warning
Oil pressure warning
Other warnings (communication errors, ex-
ceeding the maintenance intervals, and so
on)
To stop the buzzer when a malfunction is ac-
tivated, correct the cause of the problem and
Reset
Time Since Last Maintenance
30.0Hr s
Reset
Reset To
Factory?
UF3V72E0.book Page 46 Tuesday, June 16, 2020 2:29 PM

Equipment operation
49
EJU40335
EquipmentEJU45210Seats
The front and rear seats are removable.
Remove the seats to access the engine com-
partment and removable watertight storage
compartment.
To remove the rear seat:
(1) Pull the rear seat latch up, and then lift upthe rear of the seat.
(2) Pull the seat rearward and remove it. To install the rear seat:
(1) Insert the projections on the front of the
seat into the stays on the deck.
(2) Push the rear of the seat down to secure- ly lock it in place.
To remove the front seat:
(1) Remove the rear seat.
(2) Pull the front seat latch up, and then lift up the rear of the seat.
1Seat latch
1
1Seat latch
1
UF3V72E0.book Page 49 Tuesday, June 16, 2020 2:29 PM

Equipment operation
50
(3) Pull the seat rearward and remove it.
To install the front seat:
(1) Insert the projection on the front of theseat into the space under the glove com-
partment as shown.
(2) Push the rear of the seat down to secure- ly lock it in place.
(3) Securely install the rear seat in its original position.
EJU31364Handgrip
The handgrip is used when boarding the wa-
tercraft from the water and when the spotter
is facing rearward. WARNING! Do not use
the handgrip to lift the watercraft. The
handgrip is not designed to support the
watercraft’s weight. If the handgrip
breaks, the watercraft could fall, which
could result in severe injury.
[EWJ00022]
EJU37382
Reboarding grip
The reboarding grip is used when boarding
the watercraft from the water.
EJU34865Reboarding step
The reboarding step is used to assist in re-
boarding the watercraft from the water.
When boarding the watercraft, push the re-
boarding step down until it stops. The step
returns automatically to its original position
1Handgrip
1 Reboarding grip
1
1
UF3V72E0.book Page 50 Tuesday, June 16, 2020 2:29 PM

Equipment operation
52
could fall, which could result in severe in-
jury.
[EWJ01511]
EJU34894
Pull-up cleats (FX CRUISER HO)
The pull-up cleats are used to attach a rope
to the watercraft when mooring it.
To use a pull-up cleat, pull it up. The pull-up
cleat returns automatically to its original posi-
tion when released. WARNING! Do not use
the pull-up cleats to lift the watercraft. The
pull-up cleats are not designed to support
the watercraft’s weight. If the pull-up
cleats break, the watercraft could fall,
which could result in severe injury.
[EWJ00822]
EJU35148
Storage compartments
This watercraft is equipped with the following
storage compartments.
Only the securely closed watertight storage
compartment is waterproof. If you carry ob- jects that must be kept dry, put them in a wa-
terproof bag.
Make sure that the storage compartments
are closed securely before operating the wa-
tercraft.
EJU45250Bow storage compartment
The bow storage compartment is located un-
der the hood.
To open the bow storage compartment:
Pull the hood latch rearward, and then lift up
the rear of the hood.
1
Cleat
1 Pull-up cleat
1
1
1Hood latch
1 Bow storage compartment
Bow storage compartment:
Capacity: 130.0 L (34.3 US gal, 28.6 Imp.gal)
Load limit:
5.0 kg (11 lb)
1
1
UF3V72E0.book Page 52 Tuesday, June 16, 2020 2:29 PM