2009 YAMAHA VX check engine

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 .......................................... 27Reboarding step (for VX Cruiser) .... 28
Bow eye ........................................... 28
Stern eyes ....................................... 28
Yamaha Engine Management
System (YEMS) ........................... 28
Yamaha Security System
(for VX Deluxe/VX Cruiser) .......... 29
Multifunction information center ...... 31
Storage compartments .................... 35
Operation ......................................... 38
Fuel and oil .................................. 38
Fuel ................................................. 38
Engine oil ......................................... 39
Pre-operation checks ................... 40
Pre-operation check list ................... 40
Pre-operation check points .............. 42
Operation ..................................... 48
Engine break-in ............................... 48
Launching the watercraft ................. 48
Starting the engine .......................... 48
Stopping the engine ........................ 49
Shifting
(for VX Deluxe/VX Cruiser) .......... 50
Leaving the watercraft ..................... 50
Operating your watercraft ............ 51
Getting to know your watercraft ....... 51
Learning to operate your
watercraft ..................................... 51
Riding with passengers ................... 52
Starting the watercraft ..................... 52
Boarding and starting in deep
water ............................................ 53
Capsized watercraft ......................... 56
Turning the watercraft ..................... 57
Stopping the watercraft ................... 58
Beaching the watercraft ................... 59
Docking the watercraft ..................... 59
Reverse on waterways
(for VX Deluxe/VX Cruiser) .......... 59
Operating in weeded areas ............. 60
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Table of contents
Post-operation care ...................... 60
Transporting ................................. 61
Maintenance and care ..................... 62
Storage ......................................... 62
Flushing the cooling system ............ 62
Lubrication ....................................... 63
Battery ............................................. 63
Cleaning the watercraft ................... 64
Maintenance and adjustments ..... 64
Owner’s/operator’s manual and
tool kit ........................................... 64
Periodic maintenance chart ............. 66
Checking the fuel system ................ 68
Engine oil and oil filter ..................... 68
Air filter element .............................. 68
Checking the jet thrust nozzle
angle ............................................ 68
Checking the shift cable
(for VX Deluxe/VX Cruiser) .......... 69
Checking and adjusting the throttle
cable ............................................ 69
Cleaning and adjusting the spark
plugs ............................................ 70
Lubrication points ............................ 71
Checking the battery ....................... 72
Fuel injection system ....................... 73
Specifications .................................. 74
Specifications ................................ 74
Trouble recovery ............................. 75
Troubleshooting ........................... 75
Troubleshooting chart ...................... 75
Emergency procedures ................ 78
Cleaning the jet intake and
impeller ........................................ 78
Jumping the battery ......................... 79
Replacing the fuses ......................... 79
Towing the watercraft ...................... 80
Submerged watercraft ..................... 80
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Safety information
12
certain kinds of accidents and that it could
injure you in others.
A helmet is designed to provide some head
protection. Although helmets cannot protect
against all foreseeable impacts, a helmet
might reduce your injuries in a collision with
a boat or other obstacle.
A helmet may have potential safety haz-
ards, as well. Falling into the water could
risk the chance of the helmet catching wa-
ter, commonly known as “bucketing”, and
the resulting strain on your neck could
cause choking, severe and permanent neck
injuries, or death. A helmet could also in-
crease the risk of an accident if it reduces
your vision or hearing, or if it distracts you or
increases your fatigue.
How should you decide if a helmet’s poten-
tial safety benefits outweigh its potential
risks for you? Consider your particular
riding conditions. Consider factors such as
your riding environment and your riding
style and ability. Also consider the likeli-
hood of traffic congestion, and the water
surface conditions.
If you decide to wear a helmet based upon
your riding circumstances, choose one
carefully. Look for a helmet designed for
personal watercraft use, if possible. If you
will be engaging in closed-course competi-
tion, follow the helmet requirements of the
sanctioning organization.

Never operate the watercraft after consum-
ing alcohol or taking other drugs.

For reasons of safety and proper care of the
watercraft, always perform the pre-opera-
tion checks listed on page 40 before operat-
ing the watercraft.

The operator and passengers should al-
ways keep their feet on the floor of the foot-
well when the watercraft is in motion. Liftingyour feet increases the chances of losing
your balance, or hitting objects outside the
watercraft with your feet. Do not give a ride
to children if their feet cannot reach the floor
of the footwell.

The passengers should hold on firmly, ei-
ther to the person in front of them or to the
handgrip provided.

Never allow a passenger to ride in front of
the operator.

Always consult your doctor on whether it is
safe for you to ride this watercraft if you are
pregnant or in poor health.

Do not attempt to modify this watercraft.
Modifications to your watercraft may reduce
safety and reliability, and render the water-
craft unsafe or illegal for use.

Attach the engine shut-off cord (lanyard) to
your left wrist and keep it free from the han-
dlebars so that the engine stops if you, the
operator, fall off. After riding, remove the
engine shut-off cord (lanyard) from the wa-
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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
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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
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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
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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
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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
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