2012 YAMAHA VX DELUXE engine

Trouble recovery
81
EJU34561
Troubleshooting
If you have any trouble with your watercraft, use the troubleshooting chart to check for the pos-
sible cause.
If you cannot find the cause, consult a Yamaha dealer.
EJU34595Troubleshooting chart
Confirm the possible cause and remedy, and then refer to the applicable page.
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
26
Engine shut-
off switchClip not in place Install clip
27
Fuse Burned out Replace fuse and
check wiring85
Battery Run down Recharge 72
Poor terminal con-
nectionsTighten as required
72
Terminal corroded Clean or replace 72
Starter motor Faulty Have serviced by
Yamaha dealer—
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 27
Fuel Empty Refill as soon as pos-
sible44
Stale or contaminat-
edHave serviced by
Yamaha dealer—
Fuel tank Water or dirt present Have serviced by
Yamaha dealer—
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
Connected to wrong
cylinderHave serviced by
Yamaha dealer—
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
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Trouble recovery
82
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible44
Stale or contaminat-
edHave serviced by
Yamaha dealer—
Fuel tank Water or dirt present Have serviced by
Yamaha dealer—
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
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 blinks or
comes onFuel level Empty Refill as soon as pos-
sible44
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer36
Engine over-
heatedJet intake clogged Clean
84
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer37 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
83
Watercraft slow or
loses powerWatercraft
operation
mode
(VX Deluxe /
VX Cruiser)Low RPM mode acti-
vatedDeactivate Low RPM
Mode
31
Cavitation Jet intake clogged Clean 84
Impeller damaged or
wornHave serviced by
Yamaha dealer84
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine36
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
36
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer—
Air filter Clogged Have serviced by
Yamaha dealer—
Oil buildup Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
84
EJU34623
Emergency procedures EJU34634Cleaning the jet intake and impeller
WARNING
EWJ00782
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.
[ECJ00653]
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]
STOP
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Trouble recovery
85
(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.
EJU34663Connecting 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. (See page 27 for information on
starting the engine.)
EJU34695Replacing the fuses
If a fuse is blown, replace it with the proper
fuse.
To replace a fuse:
(1) Remove the seat. (See page 38 for seat
removal and installation procedures.)
1Negative (–) jumper cable
2Booster battery
3Positive (+) jumper cable
4Engine hanger
1Good fuse
2Blown fuse
1
43
2
2 1
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Trouble recovery
87
If the fuse immediately blows again, the elec-
trical system may be defective. If this occurs,
have a Yamaha dealer service the watercraft.
EJU34715Towing 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.
To tow the watercraft:
Use a towline that is three times the combined
length of the towing boat and the watercraft.
(1) Securely attach the towline to the bow
eye of the watercraft being towed.
(2) Sit astride the seat and hold on to the
handlebars in order to balance the water-
craft. NOTICE: The bow must be kept
up out of the water during towing, oth-
erwise water could flood the engine
compartment or water could flow back
into the engine, causing severe en-
gine damage.
[ECJ01330]
Tow the watercraft at 8 km/h (5 mph) or less.
NOTICE: Tow the watercraft at 8 km/h (5
mph) or less, otherwise water could flood
the engine compartment or water could
flow back into the engine, causing severe
engine damage.
[ECJ01321]
EJU36155
Submerged watercraft
If the watercraft is submerged or flooded with
water, drain the bilge water from the engine
compartment. Then, have a Yamaha dealer
service the watercraft as soon as possible.
If the watercraft was submerged:
(1) Remove the watercraft from the water
and drain the water from the storage
compartments. (See page 40 for informa-
tion on draining the storage compart-
ments.)
(2) Drain the bilge water from the engine
compartment. (See page 47 for informa-
tion on draining the bilge water.)
(3) Have the watercraft serviced 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]
1Bow eye
1
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Index
A
After removing the watercraft
from the water ....................................... 70
B
Battery care .............................................. 72
Battery checks.......................................... 53
Battery, jumping ....................................... 85
Beaching and docking the watercraft ....... 69
Beverage holder ....................................... 42
Bilge water check ..................................... 53
Bilge water, draining................................. 47
Bilge water, draining on land .................... 47
Bilge water, draining on water .................. 47
Boarding alone ......................................... 65
Boarding and starting off from a dock ...... 68
Boarding the watercraft ............................ 64
Boarding with passenger(s) ..................... 65
Bow eye ................................................... 39
Bow storage compartment ....................... 40
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 68
Check engine warning.............................. 37
Cleaning ................................................... 75
Cleaning the watercraft ............................ 72
Cleat ......................................................... 40
Cooling water pilot outlet .......................... 29
Cooling water pilot outlet check ............... 58
Craft Identification Number (CIN) ............... 1
Cruising limitations ................................... 11
E
Emergency procedures ............................ 84
Engine break-in ........................................ 49
Engine compartment check...................... 52
Engine idling speed check ....................... 58
Engine oil ................................................. 45
Engine oil and oil filter .............................. 79
Engine oil level check............................... 52
Engine oil requirements ........................... 45
Engine overheat warning ......................... 36
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 55
Engine shut-off switch .............................. 27
Engine stop switch ................................... 27
Engine unit check ..................................... 52Enjoy your watercraft responsibly ............ 19
Equipment ................................................ 38
F
Fire extinguisher check ............................ 57
Fire extinguisher holder and cover ........... 42
Fire extinguisher holder, cover,
and band checks................................... 56
Flushing the cooling water passages ....... 71
Fuel .......................................................... 44
Fuel level check ....................................... 52
Fuel level meter ........................................ 35
Fuel level warning .................................... 35
Fuel requirements .................................... 44
Fuel system checks .................................. 52
Fuses, replacing ....................................... 85
G
Getting to know your watercraft ............... 59
Glossary, watercraft ................................. 20
Glove compartment .................................. 41
H
Handgrip ................................................... 39
Hazard information ................................... 15
Hood check .............................................. 58
Hour meter/voltmeter ............................... 34
Hull and deck check ................................. 57
I
Identification numbers ................................ 1
Information display ................................... 33
J
Jet intake and impeller, cleaning .............. 84
Jet intake checks ...................................... 57
Jumper cables, connecting ...................... 85
L
Labels, important ........................................ 4
Labels, other .............................................. 8
Labels, warning .......................................... 5
Launching the watercraft .......................... 60
Learning to operate your watercraft ......... 59
Leaving the watercraft .............................. 61
Limitations on who may operate
the watercraft ........................................ 10
Long-term storage .................................... 75
Low RPM Mode
(VX Deluxe / VX Cruiser) ...................... 31
Lubrication................................................ 75
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Index
M
Main components, location of .................. 21
Maintenance............................................. 77
Manufactured date label............................. 2
Model information....................................... 2
Multifunction information center ............... 33
Multifunction information center check ..... 58
O
Oil pressure warning ................................ 36
Operating in weeded areas ...................... 70
Operating the watercraft........................... 61
Operating the watercraft in reverse
(VX Deluxe / VX Cruiser) ...................... 64
Operating your watercraft......................... 59
Operation requirements ........................... 12
P
Periodic maintenance chart...................... 78
Post-launch checks .................................. 58
Post-operation care .................................. 71
Pre-launch checks.................................... 52
Pre-operation check points ...................... 52
Pre-operation checklist............................. 50
Primary Identification (PRI-ID) number ...... 1
R
Reboarding step (VX Cruiser) .................. 39
Recommended equipment ....................... 14
Remote control transmitter check
(VX Deluxe / VX Cruiser) ...................... 55
Remote control transmitter
(VX Deluxe / VX Cruiser) ...................... 25
Reverse system checks
(VX Deluxe / VX Cruiser) ...................... 54
Reverse system
(VX Deluxe / VX Cruiser) ...................... 30
Riding position.......................................... 60
Rustproofing ............................................. 76
S
Safe boating rules .................................... 18
Safety equipment check ........................... 57
Seat .......................................................... 38
Speedometer............................................ 33
Start switch............................................... 27
Starting off ................................................ 67
Starting off from a trailer........................... 68
Starting the engine on water .................... 60Steering system ....................................... 28
Steering system checks ........................... 53
Stern drain plug checks ............................ 57
Stern eyes ................................................ 40
Stopping the engine ................................. 61
Stopping the watercraft ............................ 63
Storage compartment checks .................. 56
Storage compartments ............................. 40
Submerged watercraft .............................. 87
Switch checks .......................................... 56
T
Tachometer .............................................. 34
Throttle lever ............................................ 28
Throttle lever checks ................................ 55
Tool kit...................................................... 77
Towing the watercraft ............................... 87
Transporting on a trailer ........................... 48
Troubleshooting ....................................... 81
Troubleshooting chart .............................. 81
Turning the watercraft .............................. 62
W
Water separator ....................................... 29
Water separator check ............................. 52
Watercraft characteristics ......................... 15
Watercraft control functions ..................... 25
Watercraft operation functions ................. 30
Watercraft operation modes ..................... 31
Water-skiing ............................................. 17
Y
Yamaha Security System settings ........... 26
Yamaha Security System
(VX Deluxe / VX Cruiser) ...................... 26
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