2012 YAMAHA VX DELUXE engine

Care and storage
71
EJU37145
Post-operation care
WARNING
EWJ00330
Always place the watercraft upright in a
horizontal position when storing it, other-
wise fuel could leak out into the engine or
engine compartment, which could create a
fire hazard.
After using the watercraft, always take it out of
the water, clean it, and store it. Leaving the
watercraft in the water for extended periods
will accelerate the rate of normal deterioration
of the jet pump and hull. Marine organisms
and corrosion are some of the conditions that
can shorten the life of many watercraft com-
ponents.
EJU33547Flushing the cooling water passages
NOTICE
ECJ01310
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
Flush the cooling water passages to prevent
them from clogging with salt, sand, or dirt.
(1) Place the watercraft in a horizontal posi-
tion.
(2) Remove the seat. (See page 38 for seat
removal and installation procedures.)(3) Connect the garden hose adapter to a
garden hose.
(4) Loosen the flushing hose connector cap
and remove it. Insert the garden hose
adapter into the flushing hose connector
and turn it until it is securely connected.
(5) Connect the garden hose to a water tap.
(6) Make sure that the area around the wa-
tercraft is clear, and then start the engine.
Immediately after the engine starts, fully
turn the water supply on so that water
1Garden hose adapter
1Garden hose adapter
2Flushing hose connector
3Flushing hose connector cap
321
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Care and storage
72
flows out continually from the jet thrust
nozzle.
(7) Run the engine at idling speed for about
3 minutes watching the engine condition.
If the engine stops while flushing, turn the
water supply off immediately and perform
the procedure again from step 6.
NOTICE: Do not supply water to the
cooling water passages when the en-
gine is not running. The water could
flow back through the muffler into the
engine, causing severe engine dam-
age.
[ECJ00122]
(8) Turn the water supply off.
(9) Discharge the remaining water out of the
cooling water passages by alternately
squeezing and releasing the throttle lever
quickly for 10 to 15 seconds.
(10) Stop the engine.
(11) Remove the garden hose adapter, and
then securely install the flushing hose
connector cap by tightening it until it
stops.
(12) Securely install the seat in its original po-
sition.
EJU41700Cleaning the watercraft
(1) Remove the seat. (See page 38 for seat
removal and installation procedures.)
(2) If the watercraft will be stored for a week
or more, rustproof the internal engine
components to help prevent corrosion.(See page 76 for information on rust-
proofing the internal engine compo-
nents.)
(3) Rinse the engine and engine compart-
ment with a small amount of water.
NOTICE: Do not use high-pressure
water when rinsing the engine or en-
gine compartment as severe engine
damage could result.
[ECJ00571]
(4) Drain the water from the engine compart-
ment. (See page 47 for information on
draining the bilge water.)
(5) Wipe the engine and engine compart-
ment with a dry cloth.
(6) Wash down the hull, deck, and jet pump
with fresh water.
(7) Wipe the hull, deck, and jet pump with a
dry cloth.
(8) Wipe all vinyl and rubber components,
such as the seat and engine compart-
ment seals, with a vinyl protectant.
(9) To minimize corrosion, spray metallic
parts of the hull, deck, and engine with a
rust inhibitor.
(10) Allow the engine compartment to air dry
completely before installing the seat.
(11) Securely install the seat in its original po-
sition.
EJU33686Battery care
If the watercraft will not be used for more than
a month, remove the battery from the water-
craft, check it, and then store it in a cool, dry
place.
WARNING
EWJ00791
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes, or clothing.
Antidotes
External: Flush with water.
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Care and storage
75
EJU33492
Long-term storage
WARNING
EWJ00330
Always place the watercraft upright in a
horizontal position when storing it, other-
wise fuel could leak out into the engine or
engine compartment, which could create a
fire hazard.
Storage for long periods of time, such as win-
ter storage, requires preventive maintenance
to ensure against deterioration. It is advisable
to have the watercraft serviced by a Yamaha
dealer prior to storage.
However, the following procedures can be
performed easily by the owner.
EJU40762Cleaning
(1) Flush the cooling water passages. (See
page 71 for information on flushing the
cooling water passages.)
TIP:
If you will be storing the watercraft for a pro-
longed period, such as winter storage, top off
the fuel tank with fresh gasoline and add fuel
stabilizer and conditioner to the fuel tank ac-
cording to the manufacturer’s instruction be-
fore starting the engine.
(2) Clean the watercraft. (See page 72 for in-
formation on cleaning the watercraft.)
Wax the hull with a non-abrasive wax.
EJU40633Lubrication
Use a suitable marine grease applicator and
spray a rust inhibitor between the inner and
outer cables to lubricate the cables and purge
out any dirt and moisture.
To keep moving parts sliding or rotating
smoothly, lubricate them with water-resistant
grease.

Throttle cable (throttle lever end)

Steering cable (jet thrust nozzle end)

VX Deluxe / VX Cruiser:
Shift cable (shift lever end)Recommended water-resistant grease:
Yamaha Marine Grease/Yamaha
Grease A
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Care and storage
76

VX Deluxe / VX Cruiser:
Shift cable (reverse gate end)
EJU41670Rustproofing
Rustproofing the hull, deck, and engine
Spray metallic parts of the hull, deck, and en-
gine with a rust inhibitor.
Rustproofing the internal engine compo-
nents
Rustproof the internal engine components
with a rust inhibitor.
To rustproof the internal engine components:
(1) Remove the seat. (See page 38 for seat
removal and installation procedures.)
(2) Loosen the clamp screw and disconnect
the air intake duct.
(3) Spray a rust inhibitor into the intake open-
ing for 3 seconds. WARNING! Do not
spray flammable rust inhibitor prod-
ucts on engine surfaces while the en-gine is hot. The sprayed substance or
propellants could catch fire.
[EWJ00261]
(4) Connect the air intake duct and securely
tighten the clamp screw.
(5) Make sure that the area around the wa-
tercraft is clear, and then start the engine
in a well-ventilated area and let it run at
idle for 15 seconds. (See page 27 for in-
formation on starting the engine.)
(6) Stop the engine.
(7) Securely install the seat in its original po-
sition.
1Air intake duct
2Clamp screw
1Intake opening
UF2N72E0.book Page 76 Monday, July 4, 2011 1:10 PM

Maintenance
77
EJU33768
Maintenance
Periodic checks and lubrication will keep your
watercraft in the safest and most efficient con-
dition possible. Therefore, make sure to carry
out the periodic maintenance. Safety is an ob-
ligation of the watercraft owner. Proper main-
tenance must be carried out to keep the
exhaust emission and sound levels within the
regulated limits. The most important points of
watercraft inspection and lubrication are ex-
plained on the following pages.
See a Yamaha dealer for genuine Yamaha re-
placement parts and optional accessories de-
signed for your watercraft.
Remember, failures that are the result of the
installation of parts or accessories which are
not qualitatively equivalent to genuine
Yamaha parts are not covered by the limited
warranty.
Maintenance, replacement, or repair of the
emission control devices and system may
be performed by any marine SI engine re-
pair establishment or individual. Warranty
repair, however, must be performed at an
authorized Yamaha marine dealership.
WARNING
EWJ00311
Be sure to turn off the engine when you
perform maintenance unless otherwise
specified. If you are not familiar with ma-
chine servicing, this work should be done
by a Yamaha dealer or other qualified me-
chanic.
EJU33802Tool kit
A tool kit is included with this watercraft. Place
the tool kit in a waterproof bag and alwayscarry it with you whenever you use the water-
craft.
1Tool bag
2Screwdriver
3Garden hose adapter
410/12 mm box wrench
5Pliers
6Open-end wrench
UF2N72E0.book Page 77 Monday, July 4, 2011 1:10 PM

Maintenance
78
EJU37062Periodic maintenance chart
The periodic maintenance chart gives general guidelines for periodic maintenance. Have a
Yamaha dealer perform the checks in the following chart. However, maintenance may need to
be performed more frequently depending on your operating conditions. If you have any ques-
tions, consult a Yamaha dealer.
This“” mark indicates items to be checked and serviced by a Yamaha dealer.
Item OperationInitial Thereafter every
Page 10
hours50 hours100
hours200
hours
6
months12
months12
months24
months
Spark plugsCheck, clean, replace—
Lubrication pointsLubricate—
Intermediate hous-
ingLubricate—
Fuel systemCheck—
Fuel tankCheck, clean—
Engine idling
speedCheck, adjust—
Throttle shaftCheck—
Water inlet strain-
erCheck, clean—
Bilge strainerClean—
ImpellerCheck—
Jet thrust nozzle
angleCheck, adjust—
Shift cable and re-
verse gate
(VX Deluxe /
VX Cruiser)Check, adjust—
Throttle cableCheck—
Stern drain plugsCheck, replace—
BatteryCheck, charge—
Rubber couplingCheck—
Engine mountCheck—
Nuts and boltsCheck—
Air filter elementCheck—
UF2N72E0.book Page 78 Monday, July 4, 2011 1:10 PM

Maintenance
79
EJU36942Engine oil and oil filter
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
ECJ00991
Do not run the engine with too much or not
enough oil in the engine, otherwise the en-
gine could be damaged.
It is recommended to have a Yamaha dealer
change the engine oil and the engine oil filter.
However, if you choose to change the oil and
filter on your own, consult a Yamaha dealer.
Engine oilReplace 79
Oil filterReplace 79
Valve clearanceCheck, adjust— Item OperationInitial Thereafter every
Page 10
hours50 hours100
hours200
hours
6
months12
months12
months24
months
UF2N72E0.book Page 79 Monday, July 4, 2011 1:10 PM

Specifications
80
EJU34542
Specifications
Watercraft capacity:
Maximum people on board:
3 person
Maximum load capacity:
240 kg (530 lb)
Dimensions:
Length:
VX Sport 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:
1160 mm (45.7 in)
Dry weight:
VX Sport 334 kg (736 lb)
VX Deluxe 337 kg (743 lb)
VX Cruiser 340 kg (750 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
75.0 kW@8000 r/min
Maximum fuel consumption:
25.7 L/h (6.8 US gal/h, 5.7 Imp.gal/h)
Cruising range at full throttle:
2.33 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 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, 10W-40, 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)
UF2N72E0.book Page 80 Monday, July 4, 2011 1:10 PM