YAMAHA VX SPORT 2008 Service Manual

Features and functions
34
death could result from coming in contact
with the rotating parts of the jet pump.
CAUTION:
ECJ00040
If you cannot locate and correct the cause
of the overheating, consult a Yamaha deal-
er. Continuing to operate at higher speeds
could result in severe engine damage.
NOTE:
Press the select button on the multifunction
information center to stop the buzzer.
EJU31630Check engine warning indicator
If a sensor malfunction or a short circuit is de-
tected, 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.
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 be
1Select button
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Features and functions
35
ridden normally when this light is on. (See
page 29 for more information.)
EJU35010“L-MODE” indicator light
(for VX Deluxe/VX Cruiser)
The “L-MODE” indicator light comes on when
the low-RPM mode is selected. (See page 30
for more information.)
EJU31680Storage compartments
A front storage compartment and a glove
compartment are provided.
NOTE:

Make sure that the storage compartments
are securely closed before operating the
watercraft.

The storage compartments are not de-
signed to be waterproof. If you carry objects
that must be kept dry, such as the manuals,
put them in a waterproof bag.
EJU31711Front storage compartment
The front storage compartment is located at
the bow.
To open the front storage compartment, pull
the hood latch up, and then lift up the hood.
1“SECURITY” indicator light
1“L-MODE” indicator light
1Hood latch
1Front storage compartment
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Features and functions
36
To close the front storage compartment, push
down on the rear of the hood until it latches
securely.
NOTE:
Make sure that the hood is securely closed
before operating the watercraft.
EJU31752Glove compartment
The glove compartment is located in front of
the seat.To open the glove compartment, slide the
glove compartment latch toward you, and
then lift up the lid.
To close the glove compartment, push the lid
down until it latches securely.
For VX Deluxe/VX Cruiser:
A removable beverage holder, which includes
a transmitter holder, is provided in the glove
compartment.
NOTE:

Do not place beverages in the beverage
holder when operating the watercraft. Front storage compartment:
Capacity:
62.0 L (16.4 US gal) (13.6 Imp.gal)
Load limit:
5.0 kg (11 lb)
1Glove compartment latch
1Glove compartment
Glove compartment:
Capacity:
5.2 L (1.4 US gal) (1.1 Imp.gal)
Load limit:
1.0 kg (2 lb)
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Features and functions
37

Keep the remote control transmitter in the
transmitter holder when operating the wa-
tercraft.
1Beverage holder
2Transmitter holder
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Operation
38
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.
EJU31841Gasoline
WARNING
EWJ00280
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)
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Operation
39
EJU31890Engine oil
Use a combination of the recommended SAE
and API engine oil classifications shown in the
chart below.
CAUTION:
ECJ00280
Use only 4-stroke engine oil.
EJU31931Filling the fuel tank
CAUTION:
ECJ00290
Be careful when refueling. Avoid getting
water and other contaminants in the fuel
tank. Contaminated fuel can cause poor
running and engine damage.
(1) Remove the seat. (See page 23 for seat
removal and installation procedures.)
(2) Remove the fuel tank filler cap, and then
slowly add fuel to the fuel tank. Stop filling
when the fuel level reaches approximate-ly 50 mm (2 in) from the top of the fuel
tank as indicated in the illustration.
(3) Install the fuel tank filler cap and the seat.
1Approximately 50 mm (2 in) from top of the
fuel tank
Fuel tank capacity:
60 L (15.9 US gal) (13.2 Imp.gal)
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Operation
40
EJU31980
Pre-operation checks EJU31990Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the accom-
panying text in this chapter for details on how to perform the checks.
WARNING
EWJ00410
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.
ITEM ROUTINE PAGE
BEFORE LAUNCH OR OPERATION
Engine compartmentRemove the seat to ventilate the engine compart-
ment. Check for fuel vapors and loose electrical con-
nections.42
BilgeCheck for water and fuel and drain if necessary. 43
Stern drain plugsCheck for proper installation. 44
Throttle leverCheck that the throttle lever springs back smoothly. 45
Steering systemCheck for proper operation. 45
Shift lever and reverse gate
(VX Deluxe/VX Cruiser)Check for proper operation. 46
Fuel and oilCheck the fuel and oil levels and replenish if neces-
sary.
Check the hoses and tanks for leakage.42, 42
Water separatorCheck for water and drain if necessary. 43
BatteryCheck the electrolyte level and battery condition. 44
HoodCheck that the hood is securely closed. 23
SeatCheck that the seat is securely installed. 23
Hull and deckCheck the hull and deck for cracks and other dam-
age.42
Jet intakeCheck for debris and remove if necessary. 47
Fire extinguisherCheck the condition and replace if necessary. 45
Engine shut-off cordCheck the condition and replace if frayed or broken. 47
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.48
AFTER LAUNCH
Cooling water pilot outletCheck that water is discharged while the engine is
running and the watercraft is in the water.48
Multifunction information
centerCheck for warning indications and proper operation. 48
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Operation
41
NOTE:
Pre-operation checks should be made each time the watercraft is used. These checks can be
completed in a short time. It is worth the time spent to ensure safety and reliability.
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Operation
42
EJU32280Pre-operation check points EJU32310Engine compartment
Ventilate the engine compartment before
each use.
To ventilate the engine compartment, remove
the seat. (See page 23 for seat removal and
installation procedures.) Leave the engine
compartment open for a few minutes to allow
any fuel vapors to escape.
While the engine compartment is open, check
for loose electrical connections.
WARNING
EWJ00460
Failure to ventilate the engine compart-
ment could result in a fire or explosion. Do
not start the engine if there is a fuel leak or
a loose electrical connection.
EJU32350Hull and deck
Check the hull and deck for cracks and other
damage. If any damage is found, have a
Yamaha dealer repair the watercraft.
EJU32390Fuel level
Check the fuel system for leakage, cracks,
and malfunctions before each use. (See page
70 for check points and correct procedures.)
(1) Remove the fuel tank filler cap to release
any pressure that might have built up in
the fuel tank.(2) Remove the seat. (See page 23 for seat
removal and installation procedures.)
(3) Check the fuel level in the fuel tank and
replenish if necessary. (See page 39 for
filling procedures.)
(4) Install the fuel tank filler cap and the seat.
EJU32400Engine oil level
Check the engine oil level before each use.
CAUTION:
ECJ00390

When checking the engine oil level on
water, be careful of other watercraft,
boats, swimmers, and obstacles. The
water current and wind can cause the
watercraft to move and lead to a colli-
sion.

When checking the engine oil level on
land, supply water to the cooling water
passages. (See page 63 for procedures
on supplying water.)

Make sure that the engine has enough
oil, but do not overfill it. If there is too lit-
tle oil, the engine can be damaged. If
there is too much oil, the air filter can be-
come saturated with oil, permanently
damaging the filter and reducing engine
performance. Follow the checking pro-
cedure carefully.

Make sure that debris and water do not
enter the oil tank filler hole. Debris and
water in the engine oil can cause serious
engine damage.
To check the engine oil level:
(1) Place the watercraft in a horizontal posi-
tion or launch the watercraft, and then
start the engine.
(2) Run the engine at trolling speed for 6 min-
utes or more, and then stop the engine.
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Operation
43
NOTE:
If the ambient temperature is 20 °C (68 °F) or
less, warm up the engine for an additional 5
minutes.
(3) Remove the seat. (See page 23 for seat
removal and installation procedures.)
(4) Remove the oil tank filler cap, wipe the
dipstick clean, and then screw the filler
cap into the filler hole completely. Re-
move the filler cap again and check that
the engine oil level is between the mini-
mum level mark and maximum level
mark on the dipstick.
(5) If the engine oil level is below the mini-
mum level mark, add enough oil so that
the oil level is between the minimum and
maximum level marks on the dipstick,and then install the filler cap. If the engine
oil level is significantly above the maxi-
mum level mark, the oil tank is overfilled.
Have a Yamaha dealer remove the ex-
cessive amount of engine oil.EJU32420Water separator
Check the water separator for water. The wa-
ter separator retains any water that may have
entered through the fuel tank breather hose if
the watercraft was capsized. Normally, the
water separator is empty.
If water remains in the water separator, drain
it by removing the drain screw. Place a drain
pan under the water separator to catch the
draining water or use a dry cloth to soak up
any water that could spill into the watercraft. If
any water spills into the watercraft, be sure to
wipe it up with a dry cloth. Also, be sure to in-
stall the drain screw after draining the water
separator.
EJU32460Bilge
Check the bilge for moisture and fuel residue.
CAUTION:
ECJ00370
Excessive water in the bilge can splash
into the engine, which can result in severe
damage.
1Oil tank filler cap
1Minimum level mark
2Maximum level mark
1Water separator
2Drain screw
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