YAMAHA VX 2006 Service Manual

2-12
E
EJU19950
Steering system
Your watercraft can be steered by turning
the handlebars 1 in the direction you wish
to travel.
When the handlebars are turned, the
angle of the jet thrust nozzle 2 is changed
and the direction 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, except at
trolling speed.
This model has the Yamaha Engine Man-
agement System (YEMS) that includes an
Off-Throttle Steering (OTS) system. It will
activate at planing speeds should you
attempt to steer the watercraft after releas-
ing the throttle lever. The OTS system
assists in turning by continuing to supply
some thrust while the watercraft is deceler-
ating, but you can 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
input until you apply throttle again or you
reach trolling speed.
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2-13
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EJU18771
Shift lever (for VX110 Deluxe)
The shift lever is located on the starboard
(right) side of the watercraft and is used to
control the reverse gate, which allows the
watercraft to move in reverse or forward.
When the shift lever is in the reverse posi-
tion, the watercraft can be launched from a
trailer, or backed up out of tight spots where
you cannot turn around easily.
To shift into reverse:
1. Release the throttle and let the engine
speed return to idle.
2. Pull the shift lever toward you.
WARNING@
Make sure that the throttle is com-
pletely released and that the engine is
at idle before shifting into reverse.

Do not use the reverse function to
slow down or stop the watercraft as it
could cause you to lose control, be
ejected, or impact the handlebars.

Use reverse for slow-speed maneuver-
ing only.

Make sure that there are no obstacles
or people behind you before shifting
into reverse.

Do not touch the reverse gate while the
shift lever is being operated, otherwise
you could be pinched.
@
To shift into forward:
1. Release the throttle and let the engine
speed return to idle.
2. Push the shift lever away from you.
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EJU19670
Handgrip
The handgrip 1 provides a handhold for
boarding the watercraft and for a spotter
when facing rearward.
WARNING@ Do not use the handgrip to lift the water-
craft. The watercraft could fall, which
could result in severe injury.
@
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2-15
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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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EJU21572
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 1 is pressed, the
beeper sounds once. This indicates the lock
mode is selected and the engine cannot be
started.
The “SECURITY” indicator light 2 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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EJU21583
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 1 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. If this
occurs, press the lock button briefly to
select the lock mode, press the unlock
button briefly to select the unlock mode,
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:@ 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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2-20
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EJU21172
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,
return to shore and, if necessary, have a
Yamaha dealer check the charging system
and the battery.
EJU20761
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,
return to shore, 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.
EJU20783
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,
return to shore, 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.
@
E_F1K-70.book Page 21 Thursday, October 20, 2005 1:30 PM