engine YAMAHA VX 2009 User Guide

Features and functions
25

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 remote
control transmitter. Do not use deter-
gent, alcohol, or other chemicals.

Do not attempt to disassemble the re-
mote control transmitter yourself. Other-
wise, the transmitter may not operate
properly. If the transmitter needs a new
battery, contact a Yamaha dealer.
TIP:

While the engine is running, input from the
remote control transmitter is not received.

If you accidentally lose your remote control
transmitter, contact a Yamaha dealer.
EJU31150Engine stop switch
Push the engine stop switch (red button) to
stop the engine normally.
EJU31161Engine shut-off switch
Attach one end of the engine shut-off cord
(lanyard) to your left wrist, and then insert the
clip on the other end under the engine shut-off
switch (black button). The engine will stop au-
tomatically when the clip is removed from theswitch, such as if the operator falls off the wa-
tercraft. Remove the engine shut-off cord
(lanyard) from the watercraft when the engine
is not running to prevent unauthorized use by
children or others.
1Engine stop switch
1Clip
2Engine shut-off cord (lanyard)
3Engine shut-off switch
UF2L70E0.book Page 25 Thursday, June 19, 2008 8:38 AM

Features and functions
26
EJU31192Start switch
Push the start switch (green button) to start
the engine.
The engine will not start under any of the fol-
lowing conditions:

Lock mode of the Yamaha Security System
has been selected (for VX Deluxe/VX
Cruiser). (See page 29 for Yamaha Securi-
ty System lock and unlock mode selection
procedures.)

Clip is removed from the engine shut-off
switch.

Throttle lever is squeezed.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 78 for more information.)
TIP:

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
UF2L70E0.book Page 26 Thursday, June 19, 2008 8:38 AM

Features and functions
27
EJU31260Steering system
Your watercraft can be steered by turning the
handlebars in the direction you wish to travel.
When the handlebars are turned, the angle of
the jet thrust nozzle is changed, and the direc-
tion of the watercraft is changed accordingly.
Since the strength of the jet thrust determines
the speed and degree of a turn, throttle must
always be applied when attempting a turn, ex-
cept at trolling speed.
This model is equipped with the Yamaha En-
gine Management System (YEMS) that in-
cludes an off-throttle steering (OTS) system.
It will activate at planing speeds should you
attempt to steer the watercraft after releasing
the throttle lever. The OTS system assists in
turning by continuing to supply some thrust
while the watercraft is decelerating, but youcan turn more sharply if you apply throttle
while turning the handlebars.
The OTS system does not function below
planing speeds or when the engine is off.
Once the engine slows down, the watercraft
will no longer turn in response to handlebar in-
put until you apply throttle again or you reach
trolling speed.
EJU31301Shift lever (for VX Deluxe/VX Cruiser)
The shift lever is located on the starboard
(right) side of the watercraft and is used to
control the reverse gate, which allows the wa-
tercraft to move in reverse or forward.
When the shift lever is in the reverse position,
the watercraft can be launched from a trailer,
or backed up out of tight spots where you can-
not turn around easily.
EJU31361Handgrip
The handgrip provides a handhold for board-
ing the watercraft and for a spotter when fac-
ing rearward. WARNING! Do not use the
handgrip to lift the watercraft. The hand-
grip is not designed to support the water-
craft’s weight. If the handgrip breaks, the
1Handlebar
2Jet thrust nozzle1Shift lever
2Forward position
3Reverse position
1
3
2
UF2L70E0.book Page 27 Thursday, June 19, 2008 8:38 AM

Features and functions
28
watercraft could fall, which could result in
severe injury.
[EWJ00021]
EJU34862
Reboarding step (for VX Cruiser)
The reboarding step provides a handhold and
footstep for boarding the watercraft.
WARNING! Do not use the reboarding step
to lift the watercraft. The reboarding step
is not designed to support the watercraft’s
weight. If the reboarding step breaks, the
watercraft could fall, which could result in
severe injury.
[EWJ01211]
NOTICE
ECJ00742
Use the reboarding step only to board the
watercraft in the water. Do not use the re-
boarding step for any other purpose. The
watercraft can be damaged.
EJU34870Bow eye
The bow eye is located at the bow of the wa-
tercraft.
The bow eye is used to attach a rope to the
watercraft when transporting, mooring, or
towing it in an emergency.
EJU34880Stern eyes
The stern eyes are located at the stern of the
watercraft.
The stern eyes are used to attach a rope to
the watercraft when transporting or mooring it.
EJU31370Yamaha Engine Management System
(YEMS)
This model is equipped with an integrated,
computerized management system that con-
trols and adjusts ignition timing, fuel injection,
engine diagnostics, and the off-throttle steer-
ing (OTS) system.
1Handgrip
1Reboarding step
1Bow eye
1Stern eye
UF2L70E0.book Page 28 Thursday, June 19, 2008 8:38 AM

Features and functions
29
EJU36761Yamaha 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.
The lock and unlock modes of the security
system are selected using the remote control
transmitter that is included with this water-
craft.
TIP:
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 if it does not op-
erate properly, contact a Yamaha dealer.
(See page 24 for information on using the re-
mote control transmitter.)
EJU36104Yamaha Security System settings (for VX
Deluxe/VX Cruiser)
The Yamaha Security System settings are se-
lected by pressing the lock or unlock button
on the remote control transmitter briefly.Depending on the selected Yamaha Security
System setting, the “SECURITY” indicator
light will come on or go off.
TIP:
The lock and unlock modes of this system can
only be selected while the engine is stopped.
LOCK
When the lock button on the remote control
transmitter is pressed briefly, the beeper
sounds once and the “SECURITY” indicator
light goes off. This indicates the lock mode is
selected and the engine cannot be started.
UNLOCK
When the unlock button on the remote control
transmitter is pressed briefly, the beeper
sounds two or three times and the “SECURI-
TY” indicator light comes on. This indicates
1Remote control transmitter
1Lock button
2Unlock button
1“SECURITY” indicator light
UF2L70E0.book Page 29 Thursday, June 19, 2008 8:38 AM

Features and functions
30
the unlock mode is selected and the engine
can be started.
TIP:
The beeper sounds two times for the normal
mode or three times for the low-RPM mode.
(See the items in “Selecting the operation
mode” for operation mode information.)
If neither the start switch nor the remote con-
trol transmitter is operated within 25 seconds
after the unlock button is pressed to select the
unlock mode, the multifunction information
center will turn off and enter a standby state.
To turn the multifunction information center
back on, press the lock button on the transmit-
ter briefly to select the lock mode, and then
press the unlock button briefly to select the
unlock mode.
TIP:
If the engine is started while the multifunction
information center is in the standby state, the
“SECURITY” indicator light and “L-MODE” in-
dicator light will not come on regardless of the
setting.
EJU31413Selecting the operation mode
(for VX Deluxe/VX Cruiser)
There are two operation modes in the unlock
mode of the Yamaha Security System: the
normal mode and the low-RPM mode. 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 4seconds to switch between the normal mode
and the low-RPM mode.
Normal mode
The watercraft can be ridden normally in this
mode.
If the beeper sounds two times, the normal
mode is activated.
Low-RPM mode
Maximum engine speed (r/min) in this mode is
limited to approximately 90% of the maximum
engine speed in the normal mode.
If the beeper sounds three times, the low-
RPM mode is activated and the “L-MODE” in-
dicator light comes on.
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
1“L-MODE” indicator light
UF2L70E0.book Page 30 Thursday, June 19, 2008 8:38 AM

Features and functions
31
EJU31453Multifunction information center
This meter contains the following functions for
help and convenience in operating the water-
craft.
When the engine is started, all displays light
up for 2 seconds, and then the meter starts to
operate normally.
The current display will continue to operate for
25 seconds after the engine stops.
EJU31461Tachometer
The engine speed (r/min) is displayed by seg-
ments. Each segment indicates a 250 r/min
increment.
EJU31500Speedometer
The meter shows the watercraft speed
against water.
TIP:
To switch the speedometer display between
kilometers and miles, push the select button
for at least 1 second, within 10 seconds after
the meter is displayed.
EJU31512Fuel level meter
The fuel level meter is provided for convenient
fuel level checking while riding.
The fuel level meter has eight segments
which show the amount of fuel remaining in
1Tachometer
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)1Tachometer
1Select button
2Speedometer
UF2L70E0.book Page 31 Thursday, June 19, 2008 8:38 AM

Features and functions
32
the fuel tank. The display segments of the fuel
level meter disappear two at a time as the fuel
level decreases.
TIP:
The fuel level is most accurate when the wa-
tercraft is sitting level on a trailer or in the wa-
ter.
EJU31552Hour meter/voltmeter
To switch the display between the hour meter
and the voltmeter, push the select button for
at least 1 second after the meter is displayed
for more than 10 seconds.
Hour meter
The hour meter is provided to make it easy to
follow the maintenance schedule.
The meter shows the hours of engine opera-
tion that have elapsed since the watercraft
was new.Voltmeter
The voltmeter is provided to display the volt-
age of the battery.
When the battery voltage is normal, the volt-
meter displays approximately 12 volts.
If the battery voltage is less than 8.0 volts,
“LO” is displayed on the voltmeter and if the
voltage is above 18.1 volts, “HI” is displayed
on the voltmeter. If “HI” or “LO” is displayed,
return to shore and, if necessary, have a
Yamaha dealer check the charging system
and the battery.
EJU31562Fuel level warning indicator
If the fuel remaining in the fuel tank drops to
about 13 L (3.4 US gal, 2.9 Imp. gal), the low-
est two fuel level segments, the fuel level
warning indicator, and the “WARNING” light
begin to blink. The buzzer also starts sound-
ing intermittently.
If this occurs, refill the fuel tank as soon as
possible.
The warning signals will be cleared when the
engine is restarted after the fuel tank is re-
filled.1Fuel level meter
1Select button
2Hour meter/voltmeter
UF2L70E0.book Page 32 Thursday, June 19, 2008 8:38 AM

Features and functions
33
TIP:
Press the select button on the multifunction
information center to stop the buzzer.
EJU31622Oil pressure warning indicator
If the oil pressure does not rise to specifica-
tion, the “WARNING” light and the oil pres-
sure warning indicator begin to blink, and the
buzzer sounds intermittently. At the same
time, the engine speed is limited to help pre-
vent damage.
If this occurs, reduce the engine speed, return
to shore, and then check the engine oil level.
(See page 42 for engine oil level checking
procedures.) If the oil level is low, add enough
engine oil to raise it to the proper level. If the
oil level is sufficient, have a Yamaha dealer
check the watercraft.
TIP:
Press the select button on the multifunction
information center to stop the buzzer.
EJU31605Engine overheat warning indicator
This model is equipped with an engine over-
heat warning system.
If the engine starts to overheat, the “WARN-
ING” light and the engine overheat warning in-
dicator blink, and then come on. The buzzer
also begins to sound intermittently, and then it
sounds continuously. After the light and indi-
cator start to blink and the buzzer sounds, the
engine speed is limited to help prevent dam-
age.
If this occurs, immediately reduce the engine
speed, return to shore, and then check for wa-
ter discharge at the port (left) cooling water pi-
lot outlet while the engine is running. If there
is no discharge of water, shut the engine off,
1Select button1Select button
UF2L70E0.book Page 33 Thursday, June 19, 2008 8:38 AM

Features and functions
34
and then check the intake grate and impeller
for clogging. (See page 78 for more informa-
tion.) NOTICE: If you cannot locate and
correct the cause of the overheating, con-
sult a Yamaha dealer. Continuing to oper-
ate at higher speeds could result in severe
engine damage.
[ECJ00041]
TIP:
Press the select button on the multifunction
information center to stop the buzzer.
EJU31631Check engine warning indicator
If a sensor malfunction or a short circuit is de-
tected, the “WARNING” light and the checkengine 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.
TIP:
Press the select button on the multifunction
information center to stop the buzzer.
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 be1Select button
1Select button
UF2L70E0.book Page 34 Thursday, June 19, 2008 8:38 AM