2007 YAMAHA VX CRUISER engine oil

Table of contents
General and important labels ........... 1
Identification numbers .................... 1
Primary Identification (PRI-ID)
number ........................................... 1
Hull Identification Number (HIN) ........ 1
Engine serial number ........................ 1
Model information
(for Europe only) ......................... 2
Builder’s plate .................................... 2
Emission control information
(for Canada only) ........................ 3
Approval label of emission control
certificate ........................................ 3
Manufactured date label .................... 4
Important labels .............................. 5
Warning labels ................................... 6
Other labels ....................................... 9
Safety information ........................... 12
Limitations on who may operate
the watercraft ............................ 12
Cruising limitations ....................... 13
Operation requirements ............... 14
Recommended equipment ........... 16
Hazard information ....................... 17
Watercraft characteristics ............. 17
Water-skiing ................................. 19
Safe boating rules ........................ 20
Enjoy your watercraft
responsibly ................................ 21
Features and functions ................... 22
Location of main components ...... 22
Operation of controls and other
functions .................................... 26
Seat ................................................. 26
Hood ................................................ 26
Fuel tank filler cap ........................... 27
Remote control transmitter
(for VX Deluxe/VX Cruiser) .......... 27
Engine stop switch .......................... 28
Engine shut-off switch ..................... 28
Start switch ...................................... 29Throttle lever ................................... 29
Cooling water pilot outlet ................. 29
Steering system ............................... 30
Shift lever
(for VX Deluxe/VX Cruiser) .......... 30
Handgrip .......................................... 31
Bow eye ........................................... 31
Stern eyes ....................................... 31
Yamaha Engine Management
System (YEMS) ........................... 32
Yamaha Security System and
low-RPM mode
(for VX Deluxe/VX Cruiser) .......... 32
Multifunction information center ...... 34
Storage compartments .................... 38
Operation ......................................... 41
Fuel and oil .................................. 41
Gasoline .......................................... 41
Engine oil ......................................... 42
Filling the fuel tank .......................... 42
Pre-operation checks ................... 43
Pre-operation check list ................... 43
Pre-operation check points .............. 45
Operation ..................................... 51
Engine break-in ............................... 51
Launching the watercraft ................. 52
Starting the engine .......................... 52
Stopping the engine ........................ 54
Leaving the watercraft ..................... 54
Operating your watercraft ............ 54
Getting to know your watercraft ....... 54
Learning to operate your
watercraft ..................................... 54
Riding with passengers ................... 55
Starting the watercraft ..................... 56
Boarding and starting in deep
water ............................................ 57
Capsized watercraft ......................... 60
Turning the watercraft ..................... 61
Stopping the watercraft ................... 62
Beaching the watercraft ................... 63
Docking the watercraft ..................... 63
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Table of contents
Reverse on waterways
(for VX Deluxe/VX Cruiser) .......... 63
Rough water operation .................... 63
Post-operation care ...................... 64
Transporting ................................. 65
Maintenance and care ..................... 66
Storage ......................................... 66
Flushing the cooling system ............ 66
Lubrication ....................................... 67
Fuel system ..................................... 67
Battery ............................................. 68
Cleaning the watercraft ................... 68
Maintenance and adjustments ..... 69
Owner’s/operator’s manual and
tool kit ........................................... 70
Periodic maintenance chart ............. 71
Checking the fuel system ................ 73
Engine oil and oil filter ..................... 73
Air filter element .............................. 74
Checking the jet thrust nozzle
angle ............................................ 74
Checking the shift cable
(for VX Deluxe/VX Cruiser) .......... 74
Checking and adjusting the throttle
cable ............................................ 75
Cleaning and adjusting the spark
plugs ............................................ 75
Lubrication points ............................ 76
Checking the battery ....................... 77
Fuel injection system ....................... 78
Specifications .................................. 79
Specifications ................................ 79
Trouble recovery ............................. 80
Troubleshooting ........................... 80
Troubleshooting chart ...................... 80
Emergency procedures ................ 82
Cleaning the jet intake and
impeller ........................................ 82
Jumping the battery ......................... 83
Replacing the fuses ......................... 84
Towing the watercraft ...................... 85Submerged watercraft ..................... 85
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Safety information
17
EJU30870
Hazard information

Never start the engine or let it run for any
length of time in an enclosed area. Exhaust
fumes contain carbon monoxide, a color-
less, odorless gas that may cause loss of
consciousness and death within a short
time. Always operate the watercraft in an
open area.

Do not touch the hot oil tank, muffler, or en-
gine during or immediately after engine op-
eration; they can cause serious burns.
EJU30930
Watercraft characteristics

Jet thrust turns the watercraft. Releasing
the throttle lever completely produces only
minimum thrust. If you are traveling at
speeds above trolling, you will have rapidly
decreasing ability to steer without throttle.
This model is equipped with the Yamaha
Engine Management System (YEMS) that
includes an off-throttle steering (OTS) sys-
tem. It will activate at planing speeds should
you attempt to steer the watercraft after re-
leasing 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.
Practice turning in an open area without ob-
stacles until you have a good feel for this
maneuver.

This watercraft is water-jet propelled. The
jet pump is directly connected to the engine.
This means that jet thrust will produce some
movement whenever the engine is running.
There is no “neutral” position. You are in ei-
ther “forward” or “reverse”, depending upon
the shift lever position (for VX Deluxe/VX
Cruiser).

For VX Deluxe/VX Cruiser:
Do not use the reverse function to slow
down or stop the watercraft as it could
cause you to lose control, be ejected, or im-
pact the handlebars.
This could increase the risk of back/spinal
injury (paralysis), facial injuries, and broken
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Features and functions
25
Engine compartment
1Air filter case
2Water separator
3Fuel tank
4Battery
5Flushing hose connector
6Electrical box
7Oil tank
8Muffler
9Spark plugs/Spark plug caps/Ignition coils
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Features and functions
34
EJU31451Multifunction information center
This meter contains the following functions for
help and convenience in operating the water-
craft.
CAUTION:
ECJ00071
Do not run the engine for more than 15
seconds without supplying water or over
4000 r/min on land when checking the op-
eration of the meter, otherwise 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 operate
for 25 seconds after the engine stops.
EJU31460Tachometer
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.
NOTE:
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.
EJU31510Fuel level meter
The fuel level meter is provided for convenient
fuel level checking while riding.
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)
1Select button
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Features and functions
35
The fuel level meter has eight segments
which show the amount of fuel remaining in
the fuel tank.
NOTE:
The fuel level is most accurate when the wa-
tercraft is sitting level on a trailer or in the wa-
ter.
EJU31550Hour meter/voltmeter
NOTE:
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.
EJU31560Fuel 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.
EJU31621Oil pressure warning indicator
If the oil pressure does not rise to specifica-
tion, the “WARNING” light and the oil pres-
1Select button
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Features and functions
36
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 45 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 on the multifunction
meter to stop the buzzer.
EJU31602Engine 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,
and then check the intake grate and impeller
for clogging.
WARNING
EWJ00050
Before attempting to remove weeds or de-
bris from the intake grate or impeller, shut
the engine off and remove the clip from the
engine shut-off switch. Severe injury or1Select button
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Operation
41
EJU31820
Fuel and oil
This watercraft is equipped with a 4-stroke en-
gine. Conventional 2-stroke engine oil cannot
be used.
The engine utilizes an electronic fuel injection
system to deliver the optimal air-fuel ratio re-
quired by the engine. By ensuring the optimal
combustion conditions, this system is able to
increase startability and improve fuel econo-
my.
EJU31840Gasoline
WARNING
EWJ00430
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!

Do not smoke when refueling, and keep
away from sparks, flames, and other
sources of ignition.

Stop the engine before refueling.

Refuel in a well-ventilated area with the
watercraft in a horizontal position.

Do not stand or sit on the watercraft
while refueling in case of fire.

Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.

Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level reaches approxi-
mately 50 mm (2 in) from the top of the
fuel tank. Fuel expands as it warms up
and could overflow if the fuel tank has
been overfilled. If temporarily leaving
the watercraft with a full fuel tank, do not
leave it in direct sunlight. Leave it in a
well-ventilated area with the watercraft
in a horizontal position.

Tighten the fuel tank filler cap securely
after refueling.

If you should swallow some gasoline, in-
hale a lot of gasoline vapor, or get gaso-
line in your eyes, get immediate medical
attention.

If any gasoline spills on your skin or
clothing, immediately wash the affected
area with soap and water and change
your clothes.
CAUTION:
ECJ00310
Use only fresh gasoline that has been
stored in clean containers.
EJU31860Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and the
fuel meets the minimum octane ratings.
Gasohol containing methanol is not recom-
mended by Yamaha because it can cause
fuel system damage and engine performance
problems.Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of
86 (Pump octane number) = (R +
M)/2
90 (Research octane number)
UF1K72E0.book Page 41 Wednesday, August 2, 2006 10:43 AM