recommended oil YAMAHA VX 2021 Owners Manual

Safety information
19
EJU30992
Enjoy your watercraft responsibly
You share the areas you enjoy when riding
your watercraft with others and with nature.
So your enjoyment includes a responsibility
to treat these other people, and the lands,
waters, and wildlife with respect and courte-
sy.
Whenever and wherever you ride, think of
yourself as the guest of those around you.
Remember, for example, that the sound of
your watercraft may be music to you, but it
could be just noise to others. And the exciting
splash of your wake can make waves others
won’t enjoy.
Avoid riding close to shoreline homes and
waterfowl nesting areas or other wildlife ar-
eas, and keep a respectful distance from fish-
ermen, other boats, swimmers, and
populated beaches. When travel in areas like
these is unavoidable, ride slowly and obey all
laws.
Proper maintenance is necessary to ensure
that the exhaust emission and sound levels of
your watercraft will continue to be within reg-
ulated limits. You have the responsibility to
make sure that the recommended mainte-
nance in this owner’s/operator’s manual is
carried out.
Remember, pollution can be harmful to the
environment. Do not refuel or add oil where a
spill could cause damage to nature. Remove
your watercraft from the water and move it
away from the shoreline before refueling. Dis-
pose of water and any fuel and oil residue in
the engine compartment according to local
regulations. And keep your surroundings
pleasant for the people and wildlife that share
the waterways: don’t litter. When you ride responsibly, with respect and
courtesy for others, you help ensure that our
waterways stay open for the enjoyment of a
variety of recreational opportunities.
UF4N70E0.book Page 19 Tuesday, October 6, 2020 5:13 PM

Operation and handling requirements
64
EJU40291
Engine oil requirementsEJU43951Engine oilECJ00282
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
Why Yamalube
YAMALUBE oil is a Genuine YAMAHA Part
born of the engineers’ passion and belief that
engine oil is an important liquid engine com-
ponent. We form teams of specialists in the
fields of mechanical engineering, chemistry,
electronics and track testing, and have them
develop the engine together with the oil it will
use. Yamalube oils take full advantage of the
base oil’s qualities and blend in the ideal bal-
ance of additives to make sure the final oil
clears our performance standards. Thus,
Yamalube mineral, semisynthetic and syn- thetic oils have their own distinct characters
and value. Yamaha’s experience gained over
many years of research and development
into oil since the 1960’s helps make
Yamalube the best choice for your Yamaha engine. Checking the engine oil level
EWJ00341
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.
ECJ00392
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.
TIP:
When checking the engine oil level on land,
the engine must be running while water is
being supplied to the cooling water pas-
sages. (See “Flushing the cooling water
passages” on page 92 for information on
supplying water.)
When checking the engine oil level on wa-
ter, moor the watercraft so that it will not
drift away.
To check the engine oil level:
(1) With the engine stopped, place the wa- tercraft in a precisely level position on
land or launch the watercraft.
(2) Look in all directions, and then start the engine. (See page 79 for information on
starting the engine.)
(3) Run the engine at idling speed for 6 min- utes or more. Run the engine an addi-
tional 5 minutes if the ambient
temperature is 20 °C (68 °F) or less.
(4) Stop the engine.
(5) Remove the seats. (See page 54 for seat removal and installation procedures.)
Recommended engine oil:
YAMALUBE 4W or 4-stroke motor oil
Recommended engine oil type: SAE 10W-30, 10W-40, 20W-40,
20W-50
Recommended engine oil grade: API SG, SH, SJ, SL
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Care and storage
94
Internal: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg, or vegetable oil. Call a physician im-
mediately.
Eyes: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flames, cigarettes, etc., well away.
If using or charging the battery in an en-
closed space, make sure that it is well
ventilated. Always shield your eyes when
working near batteries.
Keep out of the reach of children.
To remove the battery:
(1) Disconnect the negative (–) battery lead.
(2) Disconnect the positive (+) battery lead.
(3) Unhook the battery bands, and then re-move the battery from the watercraft.
Checking the battery
Make sure that the battery case is not dam-
aged.
Make sure that the battery terminals are
not corroded or damaged.
Checking the battery voltage and charging
the battery
It is recommended to have a Yamaha dealer
check the battery voltage and charge the bat-
tery. Have a Yamaha dealer charge the bat- tery as soon as possible if it seems to have
discharged. Keep in mind that the battery
tends to discharge more quickly if the vehicle
is equipped with optional electrical accesso-
ries.
NOTICE: To charge a VRLA (Valve
Regulated Lead Acid) battery, a special
(constant-voltage) battery charger is re-
quired. Using a conventional battery char-
ger will damage the battery.
[ECJ02810]
Checking the battery bands
Make sure that the battery bands are not
damaged.
To store the battery:
(1) Clean the battery case using fresh water.
(2) If the battery terminals are dirty or cor- roded, clean them using a wire brush.
(3) Apply water-resistant grease to the bat- tery terminals.
1Negative (–) battery terminal: Black lead
2 Battery band
3 Positive (+) battery terminal: Red lead
3
1
2
1
Battery band
1 Battery terminal
1
1
UF4N70E0.book Page 94 Tuesday, October 6, 2020 5:13 PM

Maintenance
101
EJU36943Engine oil and oil filterEWJ00341
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.
ECJ00992
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.
UF4N70E0.book Page 101 Tuesday, October 6, 2020 5:13 PM

Specifications
102
EJU46450
Specifications
Watercraft capacity:
Maximum people on board:3 person
Maximum load capacity: 240 kg (530 lb)
Dimensions and weight:
Length:
3.33 m (131.1 in) (VX-C)
3.37 m (132.7 in) (VX LIMITED, VX CRUISER,
VX DELUXE, VX)
Width: 1.24 m (48.8 in)
Height: 1.20 m (47.2 in)
Dry weight:
306 kg (675 lb) (VX DELUXE)
308 kg (679 lb) (VX CRUISER)
314 kg (692 lb) (VX DELUXE with audio)
316 kg (697 lb) (VX LIMITED, VX CRUISER
with audio)
318 kg (701 lb) (VX-C)
326 kg (719 lb) (VX)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):74.6 kW at 7300 r/min (VX-C)
85.0 kW at 8000 r/min (VX LIMITED,
VX CRUISER, VX DELUXE, VX)
Maximum fuel consumption:
29.1 L/h (7.7 US gal/h, 6.4 Imp.gal/h) (VX-C)
33.0 L/h (8.7 US gal/h, 7.3 Imp.gal/h) (VX
LIMITED, VX CRUISER, VX DELUXE, VX)
Cruising range at full throttle: 2.12 hour (VX LIMITED, VX CRUISER,
VX DELUXE, VX)
2.41 hour (VX-C)
Trolling speed: 1500 ±100 r/min
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Number of cylinders: 3
Engine displacement: 1049 cm³
Bore × stroke:
82.0 × 66.2 mm (3.23 × 2.61 in) Compression ratio:
11.0 : 1
Valve clearance-intake (cold): 0.15–0.22 mm (0.0059–0.0087 in)
Valve clearance-exhaust (cold):
0.26–0.32 mm (0.0102–0.0126 in)
Lubrication system: Dry sump
Cooling system: Water
Starting system:
Electric
Ignition system: T.C.I.
Spark plug (NGK): CR9EB
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)
Battery capacity:
12 V, 18 Ah
Battery type: YTX20L-BS
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+24 °
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Minimum octane rating (PON): 86
Minimum octane rating (RON): 90
Recommended engine oil:
YAMALUBE 4W or 4-stroke motor oil
Recommended engine oil type SAE: SAE 10W-30, 10W-40, 20W-40, 20W-50
UF4N70E0.book Page 102 Tuesday, October 6, 2020 5:13 PM

Specifications
103
Recommended engine oil grade API:API SG, SH, SJ, SL
Fuel tank total capacity: 70 L (18.5 US gal, 15.4 Imp.gal)
Engine oil quantity with oil filter replacement:
3.4 L (3.59 US qt, 2.99 Imp.qt)
Engine oil quantity without oil filter replacement: 3.2 L (3.38 US qt, 2.82 Imp.qt)
Engine oil total quantity: 3.7 L (3.91 US qt, 3.26 Imp.qt)
UF4N70E0.book Page 103 Tuesday, October 6, 2020 5:13 PM

Index
112
Jet thrust nozzle and reverse gate check (VX / VX DELUXE / VX CRUISER /
VX LIMITED).......................................... 76
Jumper cables, connecting.................... 108
L
Labels, important ....................................... 4
Labels, other .............................................. 8
Labels, warning .......................................... 5
Launching the watercraft ......................... 79
Learning to operate your watercraft ........ 78
Leaving the watercraft ............................. 81
Limitations on who may operate the watercraft.............................................. 10
Long-term storage ................................... 95
Lubrication ............................................... 95
M
Main components, location of ................. 21
Maintenance ............................................ 98
Manufactured date label ............................ 2
Model information ...................................... 3
Multifunction information center check ... 77
Multifunction information center (VX DELUXE / VX CRUISER /
VX LIMITED).......................................... 44
Multifunction information center (VX-C / VX) ............................................ 39
N
No-wake mode ........................................ 35
O
Oil pressure warning ................................ 42
Operating in weeded areas ...................... 90
Operating the watercraft .......................... 81
Operating the watercraft in reverse or neutral (VX / VX DELUXE /
VX CRUISER / VX LIMITED) ................. 84
Operating your watercraft ........................ 78
Operation buttons .................................... 45
Operation requirements ........................... 12
P
Periodic maintenance chart ..................... 99
Post-launch checks ................................. 76
Post-operation care ................................. 92
Pre-launch checks ................................... 71
Pre-operation check points ..................... 71
Pre-operation checklist ............................ 69 Primary Identification (PRI-ID) number....... 1
Pull-up cleats (VX CRUISER /
VX LIMITED) .......................................... 57
R
Raising the reverse gate (VX / VX DELUXE / VX CRUISER /
VX LIMITED) ........................................ 108
Reboarding grip ....................................... 55
Reboarding step (VX / VX DELUXE /
VX CRUISER / VX LIMITED).................. 55
Recommended equipment ...................... 14
Reverse assist .......................................... 33
RiDE lever checks (VX / VX DELUXE / VX CRUISER / VX LIMITED).................. 73
RiDE lever (VX / VX DELUXE / VX CRUISER / VX LIMITED).................. 28
Riding position ......................................... 79
Rustproofing ............................................ 96
S
Safe boating rules .................................... 18
Safety equipment check .......................... 75
Seat storage compartment ...................... 59
Seats ........................................................ 54
Setting menu screen ................................ 47
Shift indicator (VX).................................... 41
Shift system check (VX / VX DELUXE /
VX CRUISER / VX LIMITED).................. 77
Shift system (VX / VX DELUXE / VX CRUISER / VX LIMITED).................. 30
Speedometer ........................................... 39
Start switch (VX-C) ................................... 27
Starting off ............................................... 88
Starting off from a trailer .......................... 88
Starting the engine on water .................... 79
Steering system ....................................... 28
Steering system checks ........................... 72
Stern drain plug checks ........................... 76
Stern eyes ................................................ 56
Stopping the engine ................................. 80
Stopping the watercraft ........................... 84
Storage compartment checks.................. 75
Storage compartments ............................ 57
Submerged watercraft ........................... 109
Switch checks .......................................... 74
UF4N70E0.book Page 112 Tuesday, October 6, 2020 5:13 PM