2005 YAMAHA VX engine

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EJU19940
Yamaha Engine Management
System (YEMS)
This model is equipped with an inte-
grated, computerized management system
that controls and adjusts ignition timing, fuel
injection, engine diagnostics, and the Off-
Throttle Steering (OTS) system.
EJU20723
Yamaha Security System/
Low-RPM mode (for VX110
Deluxe)
This watercraft is equipped with a remote
control transmitter 1 that is used to select
the security system and low-RPM mode set-
tings. Since the watercraft is programmed to
recognize the internal code from this trans-
mitter only, the security system setting can
only be changed with this transmitter. If you
lose the remote control transmitter or it does
not operate properly, contact a Yamaha
dealer.
EJU21561
Yamaha Security System (for
VX110 Deluxe)
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
engine can only be started in the unlock
mode.
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EJU21571
Yamaha Security System lock and
unlock modes (for VX110 Deluxe)
The lock and unlock modes of this system
can only be selected while the engine is
stopped.
When the lock button 2 is pressed, the
beeper sounds once. This indicates the lock
mode is selected and the engine cannot be
started.
The “SECURITY” indicator light 4 comes
on when the security system is in the unlock
mode and goes off when the security sys-
tem is in the lock mode.
When the unlock button 3 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 nor-
mal mode/low-RPM mode” for operation
mode information.)
Number of
beepsYamaha Security
System modeEngine can
be started
1 beep Lock NO
2 beepsUnlock
(normal mode)YES
3 beepsUnlock
(low-RPM mode)YES
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EJU21581
Selecting the normal mode/
low-RPM mode (for VX110 Deluxe)
The normal mode and low-RPM mode
can only be selected when the engine is
stopped in the unlock mode. Press the
unlock button for more than 4 seconds to
select the normal mode or 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” indicator light 5 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 meter display and the
“L-MODE” indicator light will go off. To
change the modes again, press the lock
button briefly to select the lock mode, and
then press the unlock button again for
less than 4 seconds to select the unlock
mode.

While the engine is running, input from
the remote control transmitter is not
received.
@
CAUTION:@ 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.
@
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EJU20731
Multifunction meter
This meter contains the following func-
tions for help and convenience in operating
the watercraft.
1
Tachometer
2
Speedometer
3
Hour meter/Voltmeter
4
Fuel meter
5
“L-MODE” indicator light (for VX110 Deluxe)
6
Warning light
7
Fuel warning indicator
8
Engine overheat warning indicator
9
Oil pressure warning indicator
0
Check engine warning indicator
A
Select button
B
“SECURITY” indicator light (for VX110 Deluxe)
CAUTION:@ Do not run the engine for more than
15 seconds when checking the operation
of the meter on land. The engine could
overheat.
@
NOTE:@
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 oper-
ate for 25 seconds after the engine stops.
@
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EJU17870
Tachometer
The engine speed (r/min) is displayed
by segments. Each segment indicates a
250 r/min increment.
EJU20740
Speedometer
The meter shows the watercraft speed
against water.
NOTE:@ To switch the speedometer display between
kilometers and miles, push the select
button1 for at least 1 second, within
10 seconds after the meter is displayed.
@
EJU17890
Fuel meter
The fuel meter is provided for convenient
fuel level checking while riding. The fuel
meter has eight segments which show the
amount of fuel remaining in the fuel tank.
NOTE:@ The fuel level is most accurate when the
watercraft is sitting level on a trailer or in the
water.
@
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EJU21171
Hour meter/Voltmeter
NOTE:@ To switch the display between the hour
meter and voltmeter, push the select
button1 for at least 1 second after the
meter is displayed for more than 10 sec-
onds.
@
Hour meter
The hour meter is provided to make it
easy to follow the maintenance schedule.
The meter shows the hours of engine
operation that have elapsed since the water-
craft was new.
Vo l t m e t e r
The voltmeter is provided to display the
voltage of the battery.
When the battery voltage is normal, the
voltmeter 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,
beach the watercraft and, if necessary, have
a Yamaha dealer check the charging system
and the battery.
EJU20760
Check engine warning indicator
If a sensor malfunction or a short circuit is
detected, the warning light and the check
engine warning indicator begin to blink and
the buzzer sounds intermittently.
If this occurs, reduce the engine speed,
beach the watercraft, and have a Yamaha
dealer check the engine.
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EJU20770
Fuel warning indicator
If the fuel remaining in the tank drops to
about 13 L (3.4 US gal, 2.9 Imp gal), the
lowest two fuel level segments, the fuel
warning indicator, and the warning light all
begin to blink. The buzzer also starts sound-
ing intermittently.
The warning signals will be cleared when
the engine is restarted after refilling.
EJU20782
Oil pressure warning indicator
If the oil pressure does not rise to specifi-
cation, the warning light and the oil pressure
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,
beach the watercraft, and then check the
engine oil level. (See page 3-7 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.
NOTE:@ Press the select button 1 on the multifunc-
tion meter to stop the buzzer.
@
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EJU21182
Engine overheat warning indicator
This model is equipped with an engine
overheat warning system.
If the engine starts to overheat, the warn-
ing light and the overheat warning indicator
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
damage.
If this occurs, immediately reduce the
engine speed, beach the watercraft, and
then check for water discharge at the port
(left) cooling water pilot outlet. If there is no
discharge of water, check the intake grate
and impeller for clogging.
WARNING@ Before attempting to remove weeds or
debris from the intake grate or impeller,
shut the engine off and remove the clip
from the engine shut-off switch. Severe
injury or death could result from coming
in contact with the rotating parts of the
jet pump.
@
CAUTION:@ If you cannot locate and correct the
cause of the overheating, consult a
Yamaha dealer. Continuing to operate at
higher speeds could result in severe
engine damage.
@
NOTE:@ Press the select button 1 on the multifunc-
tion meter to stop the buzzer.
@
UF1K70.book Page 22 Friday, November 19, 2004 2:42 PM