2009 YAMAHA VX engine

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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Operation
38
EJU31821
Fuel and oil EJU37162Fuel
WARNING
EWJ00282

Gasoline and gasoline vapors are ex-
tremely flammable. To avoid fires and
explosions and to reduce the risk of in-
jury when refueling, follow these in-
structions.

Gasoline is poisonous and can cause in-
jury or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline, inhale a
lot of gasoline vapor, or get some gaso-
line in your eyes, see your doctor imme-
diately. If gasoline spills on your skin,
wash with soap and water. If gasoline
spills on your clothing, change your
clothes.
NOTICE
ECJ00321

Do not use leaded gasoline. Leaded gas-
oline can seriously damage the engine.

Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance and engine
damage. Use only fresh gasoline that
has been stored in clean containers.
Gasohol
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 thefuel meets the minimum octane ratings. E-85
is a fuel blend containing 85% ethanol and
therefore must not be used in this watercraft.
All ethanol blends containing more than 10%
ethanol can cause fuel system damage or en-
gine performance problems.
Yamaha does not recommend gasohol con-
taining methanol because it can cause fuel
system damage and engine performance
problems.
To fill the fuel tank:
(1) Before refueling, turn off the engine. Do
not stand or sit on the watercraft. Never
refuel while smoking, or while in the vicin-
ity of sparks, open flames, or other sourc-
es of ignition.
(2) Place the watercraft in a well-ventilated
area and in a horizontal position.
(3) Remove the seat, and then check the fuel
level. (See page 23 for seat removal and
installation procedures.)
(4) 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. Do not overfill the fuel tank. Be-
cause fuel expands when it heats up,
heat from the engine or the sun can
cause fuel to spill out of the fuel tank. Do
not leave the watercraft with a full tank in
direct sunlight.
Recommended fuel:
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
(5) Wipe up any spilled fuel immediately.
(6) Install the fuel tank filler cap. Make sure
that the fuel tank filler cap is securely
closed before operating the watercraft.
(7) Install the seat. Make sure that the seat is
securely installed before operating the
watercraft.
EJU31891Engine oil
NOTICE
ECJ00281
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
Make sure that the engine oil is at the speci-
fied level. Add oil as necessary. (See page 42for engine oil level checking procedures.) Use
a combination of the recommended SAE and
API engine oil classifications shown in the
chart below. Fuel tank capacity:
60 L (15.9 US gal, 13.2 Imp.gal)
1Approximately 50 mm (2 in) from top of the
fuel tank
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Operation
40
EJU31980
Pre-operation checks EJU31991Pre-operation check list
Before operating this watercraft, perform the checks in the following check list.
WARNING
EWJ00411
Failure to inspect or maintain the watercraft properly increases the possibility of an ac-
cident or damage to the watercraft. Do not operate the watercraft if you find any prob-
lem. If a problem cannot be corrected by the procedures provided in this manual, have
the watercraft inspected by a Yamaha dealer.
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. 45
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. 46
Fire extinguisherCheck the condition and replace if necessary. 44
Engine shut-off cord (lan-
yard)Check the condition and replace if frayed or broken. 46
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.46
AFTER LAUNCH
Cooling water pilot outletCheck that water is discharged while the engine is
running and the watercraft is in the water.47
Multifunction information
centerCheck for warning indications and proper operation. 47
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Operation
42
EJU32280Pre-operation check points EJU32311Engine compartment
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.
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.
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.
EJU32391Fuel level
Make sure that there is sufficient fuel in the
fuel tank before each use.
Also, check the fuel system for leakage,
cracks, and malfunctions. (See page 68 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 38 for
filling procedures.)
(4) Install the fuel tank filler cap and the seat.
EJU32401Engine oil level
Check the engine oil level before each use.
WARNING
EWJ00340
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
NOTICE
ECJ00391

Do not run the engine with too much or
not enough oil in the oil tank, otherwise
the engine could be damaged.

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. NOTICE: When check-
ing the engine oil level on land, supply
water to the cooling water passages.
(See page 62 for procedures on sup-
plying water.)
[ECJ01020]
TIP:
When checking the engine oil level on water,
moor the watercraft so that it will not drift
away.
(2) Run the engine at trolling speed for 6 min-
utes or more, and then stop the engine.
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