2009 YAMAHA VX engine

Specifications
74
EJU34542
Specifications
Watercraft capacity:
Maximum people on board:
3 person
Maximum load capacity:
240 kg (530 lb)
Dimensions:
Length:
VX 3220 mm (126.8 in)
VX Deluxe 3220 mm (126.8 in)
VX Cruiser 3270 mm (128.7 in)
Width:
1170 mm (46.1 in)
Height:
1150 mm (45.3 in)
Dry weight:
VX 319 kg (703 lb)
VX Deluxe 322 kg (710 lb)
VX Cruiser 325 kg (716 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
75.00 kW@8000 r/min
Maximum fuel consumption:
26.0 L/h (6.9 US gal/h, 5.7 Imp.gal/h)
Cruising range at full throttle:
2.31 hour
Trolling speed:
1650 ±50 r/min
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Number of cylinders:
4
Engine displacement:
1052 cm³
Bore & stroke:
76.0 × 58.0 mm (2.99 × 2.28 in)
Compression ratio:
11.4 : 1
Valve clearance-intake (cold):
0.11–0.20 mm (0.0043–0.0079 in)
Valve clearance-exhaust (cold):
0.25–0.34 mm (0.0098–0.0134 in)
Lubrication system:
Dry sump
Cooling system:
WaterStarting system:
Electric
Ignition system:
T.C.I.
Spark plug:
CR9EB
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Battery capacity:
12 V, 19.0 Ah
Charging system:
Flywheel magneto
Drive unit:
Propulsion system:
Jet pump
Jet pump type:
Axial flow, single stage
Impeller rotation:
Counterclockwise
Jet thrust nozzle angle:
24.0+24.0 °
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Minimum octane rating (PON):
86
Minimum octane rating (RON):
90
Recommended engine oil type SAE:
SAE 10W-30, 20W-40, 20W-50
Recommended engine oil grade API:
API SE,SF,SG,SH,SJ,SL
Fuel tank total capacity:
60 L (15.9 US gal, 13.2 Imp.gal)
Engine oil quantity with oil filter replacement:
2.2 L (2.33 US qt, 1.94 Imp.qt)
Engine oil quantity without oil filter replacement:
2.0 L (2.11 US qt, 1.76 Imp.qt)
Engine oil total quantity:
4.3 L (4.55 US qt, 3.78 Imp.qt)
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Trouble recovery
75
EJU34560
Troubleshooting
If you have any trouble with your watercraft, use this section to check for the possible cause.
If you cannot find the cause, or if the procedure for replacement or repair is not described in
this owner’s/operator’s manual, have a Yamaha dealer perform the necessary service.
EJU34593Troubleshooting chart
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
start (Starter motor
does not turn over)Yamaha Se-
curity Sys-
tem (VX
Deluxe/VX
Cruiser)Lock mode selected Select unlock mode
29
Engine shut-
off switchClip not in place Install clip
25
Fuse Burned out Replace fuse and
check wiring79
Battery Run down Recharge 72
Poor terminal con-
nectionsTighten as required
72
Terminal corroded Clean 63
Starter motor Faulty Have serviced by
Yamaha dealer—
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 26
Fuel Empty Refill as soon as pos-
sible38
Stale or contaminat-
edHave serviced by
Yamaha dealer68
Fuel tank Water or dirt present Have serviced by
Yamaha dealer68
Spark plug Fouled or defective Clean or replace 70
Spark plug
capNot connected or
looseConnect properly
70
Connected to wrong
cylinderConnect properly
70
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
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Trouble recovery
76
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible38
Stale or contaminat-
edHave serviced by
Yamaha dealer68
Fuel tank Water or dirt present Have serviced by
Yamaha dealer68
Spark plug Fouled or defective Replace 70
Incorrect heat range Replace 70
Gap incorrect Adjust 70
Spark plug
capLoose Connect properly 70
Cracked, torn, or
damagedHave serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel injec-
tion systemFaulty or clogged in-
jectorsHave serviced by
Yamaha dealer—
Warning light or in-
dicator blinksFuel level Empty Refill as soon as pos-
sible38
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer33
Engine over-
heatedJet intake clogged Clean
78
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer34 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
77
Watercraft slow or
loses powerYamaha Se-
curity Sys-
tem (VX
Deluxe/VX
Cruiser)Low-RPM mode se-
lectedSelect normal mode
30
Cavitation Jet intake clogged Clean 78
Impeller damaged or
wornHave serviced by
Yamaha dealer78
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine33
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
33
Spark plug Fouled or defective Replace 70
Incorrect heat range Replace 70
Gap incorrect Adjust 70
Spark plug
capsLoose Connect properly
70
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer68
Air filter Clogged or oil buildup Have serviced by
Yamaha dealer68 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
78
EJU34620
Emergency procedures EJU34631Cleaning the jet intake and impeller
WARNING
EWJ00780
Before attempting to remove weeds or de-
bris from the jet intake or impeller area,
shut the engine off and remove the clip
from the engine shut-off switch. Severe in-
jury or death could result from coming in
contact with the rotating parts of the jet
pump.
If weeds or debris gets caught in the jet intake
or impeller, cavitation can occur, causing jet
thrust to decrease even though engine speed
rises. If this condition is allowed to continue,
the engine will overheat and may seize.
NOTICE: If weeds or debris gets caught in
the jet intake, do not operate the watercraft
above trolling speed until they have been
removed.
[ECJ00651]
If there is any sign that the jet intake or impel-
ler is clogged with weeds or debris, return to
shore and check the intake and impeller. Al-ways stop the engine before beaching the wa-
tercraft.
(1) Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches. Turn the
watercraft on its side as shown. NOTICE:
Always turn the watercraft over onto
its port (left) side. When turning the
watercraft on its side, support the bow
so that the handlebars are not bent or
damaged.
[ECJ00661]
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Trouble recovery
79
(2) Remove any weeds or debris from
around the jet intake, drive shaft, impel-
ler, jet pump housing, and jet thrust noz-
zle.
If debris is difficult to remove, consult a
Yamaha dealer.
EJU34641Jumping the battery
If the watercraft battery has run down, the en-
gine can be started using a 12-volt booster
battery and jumper cables.
EJU34662Connecting the jumper cables
WARNING
EWJ01250
To avoid battery explosion and serious
damage to the electrical system:

Do not reverse the polarity of the jumper
cables when connecting to the batteries.

Do not connect the negative (–) jumper
cable to the negative (–) terminal of the
watercraft battery.

Do not touch the positive (+) jumper ca-
ble to the negative (–) jumper cable.
(1) Connect the positive (+) jumper cable to
the positive (+) battery terminals of both
batteries.
(2) Connect one end of the negative (–)
jumper cable to the negative (–) battery
terminal of the booster battery.(3) Connect the other end of the negative (–)
jumper cable to an engine hanger.
(4) Start the engine, and then disconnect the
jumper cables by reversing the steps
above. NOTICE: 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 could
be damaged. If the engine does not
start in 5 seconds, release the start
switch, wait 15 seconds, and then try
again.
[ECJ00481]
EJU34691
Replacing the fuses
The fuses are located in the electrical box.
To replace a fuse:
(1) Remove the cap on the electrical box.
(2) Replace the blown fuse with the spare
fuse of the correct amperage by using the
fuse puller on the reverse side of the cap.
WARNING! Do not use fuses of higher
amperage than recommended. Substi-
tution with a fuse that has an improper
rating can cause extensive electrical
1Positive (+) jumper cable
2Negative (–) jumper cable
3Booster battery
4Engine hanger
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Trouble recovery
80
system damage and possible fire.
[EWJ00801]EJU34711Towing the watercraft
WARNING
EWJ00811

The operator of the towing boat must
keep speed to a minimum and avoid traf-
fic or obstacles which could be a hazard
to the operator on the watercraft.

The towline should be long enough so
that the watercraft will not collide with
the towing boat when slowing down.
If the watercraft becomes inoperative in the
water, it can be towed to shore.
When the watercraft is towed using a towline,
the operator should hold onto the handlebars
and ride the watercraft in order to balance it.
Use a towline that is three times the combined
length of the towing boat and the watercraft.
Tow the watercraft at 5 mph (8 km/h) or less.
The bow must be kept up out of the water dur-
ing towing to prevent water from entering the
engine compartment.
EJU36151Submerged watercraft
If the watercraft is submerged or flooded with
water, follow the procedure below and consult
a Yamaha dealer as soon as possible. Failure
to do so could result in serious engine dam-
age.
(1) Beach the watercraft and remove the
stern drain plugs to drain the water from
1Electrical box
2Cap
3Fuse
4Spare fuse
1Fuse puller
Fuse amperage:
Battery fuse:
30 A
Main relay drive fuse:
10 A
Electronic throttle valve fuse:
10 A
Security system fuse:
3 A
Main fuse:
20 A1Bow eye
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Trouble recovery
81
the engine compartment. (See page 43
for more information.)
Remove the storage compartment drain
plugs to drain the water from the storage
compartments.
(2) Install the stern drain plugs and storage
compartment drain plugs.
(3) Have the watercraft inspected by a
Yamaha dealer as soon as possible.
NOTICE: Be sure to have a Yamaha
dealer inspect the watercraft. Other-
wise, serious engine damage could re-
sult.
[ECJ00791]
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