2008 YAMAHA VX ECU

Table of contents
General and important labels ........... 1
Identification numbers .................... 1
Primary Identification (PRI-ID)
number ........................................... 1
Craft Identification Number (CIN) ...... 1
Engine serial number ........................ 1
Model information ........................... 2
Builder’s plate .................................... 2
Important labels .............................. 3
Warning labels ................................... 4
Other labels ....................................... 7
Safety information ............................. 9
Limitations on who may operate
the watercraft .............................. 9
Cruising limitations ....................... 10
Operation requirements ............... 11
Recommended equipment ........... 13
Hazard information ....................... 14
Watercraft characteristics ............. 14
Water-skiing ................................. 16
Safe boating rules ........................ 17
Enjoy your watercraft
responsibly ................................ 18
Features and functions ................... 19
Location of main components ...... 19
Operation of controls and other
functions .................................... 23
Seat ................................................. 23
Hood ................................................ 23
Fuel tank filler cap ........................... 24
Remote control transmitter
(for VX Deluxe/VX Cruiser) .......... 24
Engine stop switch .......................... 25
Engine shut-off switch ..................... 25
Start switch ...................................... 26
Throttle lever ................................... 26
Cooling water pilot outlet ................. 26
Steering system ............................... 27
Shift lever (for VX Deluxe/
VX Cruiser) .................................. 27
Handgrip .......................................... 28Bow eye ........................................... 28
Stern eyes ....................................... 28
Yamaha Engine Management
System (YEMS) ........................... 28
Yamaha Security System and
low-RPM mode (for VX Deluxe/
VX Cruiser) .................................. 29
Multifunction information center ...... 30
Storage compartments .................... 35
Operation ......................................... 38
Fuel and oil .................................. 38
Gasoline .......................................... 38
Engine oil ......................................... 39
Filling the fuel tank .......................... 39
Pre-operation checks ................... 40
Pre-operation check list ................... 40
Pre-operation check points .............. 42
Operation ..................................... 49
Engine break-in ............................... 49
Launching the watercraft ................. 49
Starting the engine .......................... 49
Stopping the engine ........................ 51
Leaving the watercraft ..................... 51
Operating your watercraft ............ 52
Getting to know your watercraft ....... 52
Learning to operate your
watercraft ..................................... 52
Riding with passengers ................... 53
Starting the watercraft ..................... 53
Boarding and starting in deep
water ............................................ 54
Capsized watercraft ......................... 57
Turning the watercraft ..................... 58
Stopping the watercraft ................... 60
Beaching the watercraft ................... 60
Docking the watercraft ..................... 60
Reverse on waterways
(for VX Deluxe/VX Cruiser) .......... 60
Rough water operation .................... 61
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Features and functions
23
EJU31020
Operation of controls and other
functions
EJU31031Seat
There is a seat latch at the rear of the seat to
remove the seat.
To remove the seat:
Pull the seat latch up, and then pull the seat
off.
VX/VX Deluxe
VX Cruiser
To install the seat:
Insert the projection on the front of the seat
into the stay on the deck, and then push therear of the seat down to lock it in place secure-
ly.
NOTE:
Make sure that the seat is securely installed
before operating the watercraft.
EJU31071Hood
To open the hood, pull the hood latch up, and
then lift up the hood.
1Seat latch
1Seat latch
1Hood latch
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Features and functions
24
To close the hood, push the hood down to
lock it in place.
NOTE:
Make sure that the hood is securely closed
before operating the watercraft.
EJU31090Fuel tank filler cap
To remove the fuel tank filler cap, turn it coun-
terclockwise.
NOTE:
Make sure that the fuel tank filler cap is se-
curely closed before operating the watercraft.
EJU36620Remote control transmitter (for VX
Deluxe/VX Cruiser)
The Yamaha Security System and low-RPM
mode settings are selected using the remote
control transmitter. (See “Yamaha Security
System and low-RPM mode” on page 29 forinformation on using the remote control trans-
mitter.)
CAUTION:
ECJ00020
The Yamaha Security System and low-
RPM mode settings can only be selected
using the remote control transmitter. Ob-
serve the following precautions to protect
your remote control transmitter:

Store the remote control transmitter
carefully so it will not be lost. When op-
erating the watercraft, use the transmit-
ter holder in the glove compartment. If
you accidentally lose your remote con-
trol transmitter, contact a Yamaha deal-
er.

While the remote control transmitter has
been designed for use in wet environ-
ments, it should not be operated under-
water or submerged for an extended
length of time. If it gets wet, dry it with a
soft, dry cloth.

Keep the remote control transmitter
away from high temperatures and do not
place it in direct sunlight.

Do not drop the remote control transmit-
ter, subject it to strong shocks, or place
any heavy items on it.

Use a soft, dry cloth to clean the trans-
mitter. Do not use detergent, alcohol, or
other chemicals.
1Fuel tank filler cap
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Features and functions
26
EJU31191Start switch
Push the start switch (green button) to start
the engine.
NOTE:
The engine will not start when the lock mode
of the Yamaha Security System has been se-
lected (for VX Deluxe/VX Cruiser), the clip is
removed from the engine shut-off switch, or
the throttle lever is squeezed. (See page 29
for Yamaha Security System lock and unlock
mode selection procedures.)
EJU31210Throttle lever
Squeeze the throttle lever to increase engine
speed.
Release the throttle lever to decrease engine
speed or to return it to the idle position.
EJU35971Cooling water pilot outlet
This watercraft is equipped with a cooling wa-
ter pilot outlet.
When the engine is running, cooling water is
circulated in the engine, and then it is dis-
charged from the pilot outlet.
To check for proper operation of the cooling
system, check that water is being discharged
from the pilot outlet. If water is not being dis-
charged from the outlet, cooling water may
not be circulating in the engine. When this oc-
curs, stop the engine and check for the cause.
(See pages 33 and 80 for more information.)
NOTE:

If the cooling water passages are dry, it will
take about 60 seconds for the water to
reach the outlet after the engine is started.

Water discharge may not be constant at
idle, therefore, open the throttle a little to
check that water discharges properly.
1Start switch
1Throttle lever
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Features and functions
29
EJU31380Yamaha Security System and low-
RPM mode (for VX Deluxe/VX Cruiser)
This watercraft is equipped with a remote con-
trol transmitter that is used to select the secu-
rity system and low-RPM mode settings.
Since the watercraft is programmed to recog-
nize the internal code from this transmitter
only, the security system setting can only be
changed with this transmitter. If you lose the
remote control transmitter or it does not oper-
ate properly, contact a Yamaha dealer.
EJU31390Yamaha Security System
(for VX Deluxe/VX Cruiser)
The Yamaha Security System functions to
help prevent unauthorized use or theft of the
watercraft. The engine cannot be started if the
security system is in the lock mode. The en-
gine can only be started in the unlock mode.
EJU36102Yamaha Security System lock and unlock
modes (for VX Deluxe/VX Cruiser)
The lock and unlock modes of this system can
only be selected while the engine is stopped.
When the lock button on the remote control
transmitter is pressed, the beeper sounds
once. This indicates the lock mode is selected
and the engine cannot be started.
The “SECURITY” indicator light comes on
when the security system is in the unlockmode and goes off when the security system
is in the lock mode.
When the unlock button on the remote control
transmitter is pressed for a short time, the
beeper sounds two times for the normal mode
or three times for the low-RPM mode. The
“SECURITY” indicator light will come on and
the engine can be started. (See the items in
“Selecting the normal mode/low-RPM mode”
for operation mode information.)
1Lock button
1“SECURITY” indicator light
1Unlock button
Number
of beepsYamaha Security Sys-
tem modeEngine
can be
started
1 beep Lock NO
2 beepsUnlock
(normal mode)YES
3 beepsUnlock
(low-RPM mode)YES
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Features and functions
30
EJU31412Selecting the normal mode/low-RPM
mode (for VX Deluxe/VX Cruiser)
The normal mode and low-RPM mode can
only be selected when the engine is stopped
in the unlock mode. Press the unlock button
on the remote control transmitter for more
than 4 seconds to switch between the normal
mode and the low-RPM mode.
Normal mode
If the beeper sounds twice, the normal mode
is activated.
The watercraft can be ridden normally.
Low-RPM mode
If the beeper sounds three times, the low-
RPM mode is activated and the “L-MODE” in-
dicator light comes on.
Maximum engine speed (r/min) in the low-
RPM mode is limited to approximately 90% of
the maximum engine speed in the normal
mode.
NOTE:

If neither the start switch nor the remote
control transmitter is operated within 25
seconds after the unlock button is pressed
to select the unlock mode, the multifunction
information center display and the “L-
MODE” indicator light will go off. If this oc-
curs, press the lock button on the transmit-
ter briefly to select the lock mode, press the
unlock button briefly to select the unlockmode, and then press the unlock button
again for more than 4 seconds to select the
normal mode or low-RPM mode.

While the engine is running, input from the
remote control transmitter is not received.
CAUTION:
ECJ00080
If the remote control transmitter does not
operate when its buttons are pressed, the
battery may be low. Have a Yamaha dealer
replace the battery.
EJU31452Multifunction information center
This meter contains the following functions for
help and convenience in operating the water-
craft.
1“L-MODE” indicator light1Tachometer
2Speedometer
3Hour meter/voltmeter
4Fuel level meter
5“L-MODE” indicator light (for VX Deluxe/VX
Cruiser)
6“WARNING” light
7Fuel level warning indicator
8Oil pressure warning indicator
9Engine overheat warning indicator
10Check engine warning indicator
11Select button
12“SECURITY” indicator light
(for VX Deluxe/VX Cruiser)
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Features and functions
34
death could result from coming in contact
with the rotating parts of the jet pump.
CAUTION:
ECJ00040
If you cannot locate and correct the cause
of the overheating, consult a Yamaha deal-
er. Continuing to operate at higher speeds
could result in severe engine damage.
NOTE:
Press the select button on the multifunction
information center to stop the buzzer.
EJU31630Check engine warning indicator
If a sensor malfunction or a short circuit is de-
tected, the “WARNING” light and the check
engine warning indicator begin to blink, and
the buzzer sounds intermittently.
If this occurs, reduce the engine speed, return
to shore, and have a Yamaha dealer check
the engine.
EJU35001“SECURITY” indicator light
(for VX Deluxe/VX Cruiser)
The “SECURITY” indicator light comes on
when the unlock mode of the Yamaha Securi-
ty System is selected. The watercraft can be
1Select button
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Features and functions
35
ridden normally when this light is on. (See
page 29 for more information.)
EJU35010“L-MODE” indicator light
(for VX Deluxe/VX Cruiser)
The “L-MODE” indicator light comes on when
the low-RPM mode is selected. (See page 30
for more information.)
EJU31680Storage compartments
A front storage compartment and a glove
compartment are provided.
NOTE:

Make sure that the storage compartments
are securely closed before operating the
watercraft.

The storage compartments are not de-
signed to be waterproof. If you carry objects
that must be kept dry, such as the manuals,
put them in a waterproof bag.
EJU31711Front storage compartment
The front storage compartment is located at
the bow.
To open the front storage compartment, pull
the hood latch up, and then lift up the hood.
1“SECURITY” indicator light
1“L-MODE” indicator light
1Hood latch
1Front storage compartment
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