2005 YAMAHA VX battery

2-4
E
1Air filter case
2Water separator
3Fuel tank
4Battery
5Flush hose connector
Use to flush the engine cooling water pas-
sages.
6Electrical box
Protects electrical components from water.
7Oil tank8Muffler
9Spark plugs/Spark plug caps/Ignition coils
UF1K70.book Page 4 Friday, November 19, 2004 2:42 PM

2-7
E
EJU21111
Remote control transmitter
(for VX110 Deluxe)
The Yamaha Security System and low-
RPM mode settings are selected using the
remote control transmitter. (See “Yamaha
Security System/Low-RPM mode” on page
2-15 for information on using the remote
control transmitter.)
CAUTION:@ The Yamaha Security System and low-
RPM mode settings can only be selected
using the remote control transmitter.
Observe the following precautions to
protect your remote control transmitter:

Store the remote control transmitter
carefully so it will not be lost. When
operating the watercraft, use the trans-
mitter holder 1 in the glove compart-
ment. If you accidentally lose your
remote control transmitter, contact a
Yamaha dealer.

While the remote control transmitter
has been designed for use in wet envi-
ronments, 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 trans-
mitter, 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.

If the remote control transmitter needs
a new battery or is not operating prop-
erly, contact a Yamaha dealer. Do not
attempt to replace the battery yourself.
@
UF1K70.book Page 7 Friday, November 19, 2004 2:42 PM

2-17
E
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.
@
UF1K70.book Page 17 Friday, November 19, 2004 2:42 PM

2-20
E
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.
UF1K70.book Page 20 Friday, November 19, 2004 2:42 PM

3-5
E
EJU13460
Pre-operation checks
EJU13470
Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the
accompanying text in this chapter for details on how to perform the checks.
WARNING@ If any item in the pre-operation check list is not working properly, have it inspected
and repaired before operating the watercraft, otherwise an accident could occur.
@
NOTE:@ Pre-operation checks should be made thoroughly each time the watercraft is used. This pro-
cedure can be completed in a short time. It is worth the time spent to assure safety and reli-
ability.
@
ITEM ROUTINE PAGE
Engine compartment Remove the seat to ventilate the engine compartment.
Check for fuel vapors and loose electrical connections.3-6
Bilge Check for water and fuel and remove if necessary. 3-9
Stern drain plugs Check for proper installation. 3-9
Throttle lever Check that the throttle lever springs back smoothly. 3-11
Steering system Check for proper operation. 3-12
Shift lever and reverse gate
(VX110 Deluxe)Check for proper operation.
3-12
Fuel and oil Check fuel and oil levels and add if necessary.
Check the hoses and tanks for leakage.3-6, 3-7
Water separator Check for water and drain if necessary. 3-8
Battery Check electrolyte level, battery terminal connections,
breather hose connection, and battery condition.3-10
Hood Check that the hood is properly secured. 2-6
Seat Check that the seat is properly secured. 2-5
Hull and deck Check the hull and deck for cracks or other damage. 3-6
Jet unit Check for debris and remove if necessary. 3-13
Fire extinguisher Check condition and replace if necessary. 3-11
Engine shut-off cord Check condition and replace if frayed or broken. 3-13
Switches Check the start switch, engine stop switch, and engine
shut-off switch for proper operation.3-14
Cooling water pilot outlet Check that water is discharged while the engine is run-
ning and the watercraft is in the water.3-14
Multifunction meter Check for warning indications and proper operation. 3-14
UF1K70.book Page 5 Friday, November 19, 2004 2:42 PM

3-10
E
EJU19690
Battery
Check the battery condition and the elec-
trolyte level.
Check that the battery leads are tightened
securely and there is no corrosion on the
battery terminals.
WARNING@
The battery must always be fully
charged and in good condition. Loss
of battery power may leave you
stranded. Never operate the watercraft
if the battery does not have sufficient
power to start the engine or if it shows
any other signs of decreased power.

Be sure to connect the breather hose
to the battery. Fire or explosion could
result if the breather hose is damaged,
obstructed, or not connected properly.
@
Make sure that the battery is securely
held in place.
1
Positive (+): Red lead
2
Negative (–): Black lead
3
Breather hose
UF1K70.book Page 10 Friday, November 19, 2004 2:42 PM

3-18
E
3. Attach the clip 1 to the engine shut-off
switch 2 and attach the engine shut-off
cord 3 to your left wrist.
WARNING@ Check that the engine shut-off cord is not
frayed or broken, and keep it free from
the handlebars so the engine stops if the
operator falls off. The engine shut-off
cord may not pull free if wrapped around
the handlebars when the operator falls
off, allowing the watercraft to continue to
run and cause an accident.
@
NOTE:@ It is not possible to start the engine with the
clip removed from the engine shut-off
switch.
@
4. Push the start switch (green button), and
then release it as soon as the engine
starts to run.
NOTE:@ The engine will not start if the throttle lever is
squeezed.
@
CAUTION:@
Never push the start switch while the
engine is running.

Do not operate the start switch for
more than 5 seconds, otherwise the
battery will be discharged and the
engine will not start. Also, the starter
motor may be damaged. If the engine
does not start in 5 seconds, release
the start switch, wait 15 seconds, and
then try again.
@
UF1K70.book Page 18 Friday, November 19, 2004 2:42 PM

E
4
EJU10860
MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-4
Battery .................................................... 4-5
Cleaning the watercraft .......................... 4-6
Maintenance and adjustments .............. 4-7
Owner’s/Operator’s Manual and
tool kit ..................................................... 4-8
Periodic maintenance chart ................... 4-9
Inspecting the fuel system ................... 4-10
Changing the engine oil ....................... 4-11
Checking the air filter element ............. 4-13
Inspecting the jet thrust nozzle
angle ..................................................... 4-13
Inspecting the shift cable
(for VX110 Deluxe) .............................. 4-13
Inspecting and adjusting the
throttle cable ......................................... 4-14
Cleaning and adjusting the
spark plugs ........................................... 4-15
Lubrication points ................................. 4-17
Inspecting the battery .......................... 4-19
Adjusting the fuel injection system ...... 4-21
Replacing the fuses ............................. 4-22
Specifications ........................................ 4-23
UF1K70.book Page 1 Friday, November 19, 2004 2:42 PM