check engine YAMAHA VX 2009 Owner's Manual

Operation
60
EJU37190Operating in weeded areas
Always avoid operating your watercraft in ar-
eas where weed growth is thick. If traveling in
weeded areas is unavoidable, operate the en-
gine alternately at partial throttle and full throt-
tle. Weeds tend to accumulate more at a
steady speed and at trolling speed. If weeds
clog the intake area and cause cavitation,
clean the jet intake and impeller. (See page
78 for cleaning procedures.)
EJU33382
Post-operation care
To keep your watercraft in top shape, always
take it out of the water after using it and per-
form the following procedures. Leaving the
watercraft in the water for extended periods
will accelerate the rate of normal deterioration
of the jet unit components and hull finish. Ma-
rine organisms and corrosion are some of the
conditions that can adversely affect the life of
many watercraft components.
(1) Remove the watercraft from the water.
(2) Wash down the hull, handlebars, and jet
unit with fresh water.
(3) Remove the seat and check the engine
compartment for water. To drain excess
water, remove the stern drain plugs, and
then raise the bow of the watercraft
enough to allow the water in the bilge to
drain out.
TIP:
This watercraft is equipped with an automatic
bilge draining system that removes water
from the engine compartment while you are
underway. However, some residual water will
remain, therefore remove the stern drain
plugs to drain the water. (See page 43 for
bilge draining procedures.)
(4) Place the watercraft in a horizontal posi-
tion.
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Maintenance and care
63
and releasing the throttle lever for 10 to
15 seconds.
(8) Stop the engine.
(9) Remove the garden hose adapter and in-
stall the flushing hose connector cap.
(10) Install the seat.
EJU33623Lubrication
(1) Remove the seat. (See page 23 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 tighten
the clamp screw.
(5) Start the engine in a well-ventilated area
and let it run at idle for 15 seconds.
NOTICE: Do not run the engine for
more than 15 seconds without supply-
ing water, otherwise the engine could
overheat.
[ECJ00562]
(6) Lubricate all cables such as the throttle
and steering cables.
Use a suitable marine grease applicator
to pressure-lubricate the cables and
purge out any moisture between the inner
and outer cables.
(7) Lubricate the areas of the watercraft
specified in “Lubrication points” on page
71.
(8) Install the seat.
EJU33681Battery
If the watercraft will not be used for more than
a month, remove the battery from the water-
craft and store it in a cool, dry place.
(1) Disconnect the negative (–) battery lead
first, then the positive (+) battery lead and
breather hose, and then remove the bat-
tery from the watercraft.
(2) Clean the battery casing using fresh wa-
ter.
(3) If the battery terminals are dirty or corrod-
ed, clean them with a wire brush.
(4) Fully charge the battery.
(5) Apply Yamaha Marine Grease or
Yamaha Grease A to the battery termi-
nals, and then store the battery in a cool,
dry place.
(6) Check the battery at least once every 2
months and fully charge it if necessary.
NOTICE: Always keep the battery
charged. Storing a discharged battery
can cause permanent battery damage.
[ECJ00101]
1Clamp screw
2Air intake duct
1Intake opening
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Maintenance and care
64
To check the condition of the battery, check
the specific gravity of the electrolyte or mea-
sure the voltage at both battery terminals.
Charge the battery if the voltage is less than
12 volts.
It is recommended to have a Yamaha dealer
check the specific gravity and charge the bat-
tery. If you maintain the battery yourself, be
sure to read and follow the instructions provid-
ed with the battery tester and charger you
use.
EJU33731Cleaning the watercraft
Clean the watercraft before storing it for a long
period.
(1) Wash down the hull, handlebars, and jet
unit with fresh water.
(2) Rinse the engine and engine compart-
ment with fresh water. Drain all of the wa-
ter and wipe up any remaining moisture
with clean, dry rags. NOTICE: Do not
use high-pressure water when rinsing
the engine and engine compartment
as severe engine damage could result.
[ECJ00111]
(3) Spray the engine’s exterior with a rust in-
hibitor and lubricant.
(4) Wax the hull with a non-abrasive wax.
(5) Wipe all vinyl and rubber components,
such as the seat and engine compart-
ment seals, with a vinyl protectant.
EJU33762
Maintenance and adjustments
Periodic inspection, adjustment, and lubrica-
tion will keep your watercraft in the safest and
most efficient condition possible. Safety is an
obligation of the watercraft owner. Proper
maintenance must be carried out to keep the
exhaust emission and sound levels within the
regulated limits. The most important points of
watercraft inspection, adjustment, and lubri-
cation are explained 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.
EJU33811Owner’s/operator’s manual and tool
kit
It is advisable to always carry the owner’s/op-
erator’s manual and tool kit with you whenev-
er you use the watercraft. For your
convenience, a storage compartment is pro- Specific gravity (for reference):
1.28 at 20 °C (68 °F)
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Maintenance and care
66
EJU33821Periodic maintenance chart
The following chart gives general guidelines for periodic maintenance. However, maintenance
may need to be performed more frequently depending on your operating conditions.
This“” mark indicates maintenance that you may do yourself.
This“” mark indicates work to be done by a Yamaha dealer.
Item OperationInitial Thereafter every
Page 10
hours50
hours100
hours100
hours200
hours
6
months12
months12
months24
months
Spark plugsCheck, clean, adjust 70
Lubrication pointsLubricate 71
Fuel systemCheck 68
Fuel tankCheck, clean 68
Trolling speedCheck, adjust 73
Throttle shaftCheck—
Cooling water pas-
sagesFlush
*62
Water inlet strain-
erCheck, clean—
Bilge strainerClean—
ImpellerCheck—
Jet thrust nozzle
angleCheck, adjust 68
Shift cable and re-
verse gate
(VX Deluxe/VX
Cruiser)Check, adjust 69
Throttle cableCheck, adjust 69
Stern drain plugsCheck, replace 44
BatteryCheck, charge 72
Rubber couplingCheck—
Engine mountCheck—
Nuts and boltsCheck—
Air filter elementCheck 68
Engine oilReplace 68
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Maintenance and care
68
EJU34212Checking the fuel system
WARNING
EWJ00381
Leaking fuel can result in fire or explosion.

Check for fuel leakage regularly.

If any fuel leakage is found, the fuel sys-
tem must be repaired by a qualified me-
chanic. Improper repairs can make the
watercraft unsafe to operate.
Check the fuel system for leaks, cracks, and
malfunctions. If any problem is found, consult
a Yamaha dealer.
Check:

Fuel tank filler cap and seal for damage

Fuel in fuel tank for water and dirt

Fuel tank for damage, cracks, and leakage

Fuel hoses and joints for damage, cracks,
and leakage

Air bleeding passages for leakageEJU34230Fuel tank
Check the fuel tank for leakage and for water
in the tank. If water is found in the fuel system,
or if the fuel tank needs to be cleaned, have a
Yamaha dealer service the watercraft.
EJU34292Engine 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
ECJ00181
Do not run the engine with too much or not
enough oil in the oil tank, otherwise the
engine could be damaged.
It is recommended to have a Yamaha dealer
change the engine oil. However, if you choose
to change the oil on your own, consult a
Yamaha dealer.
EJU34311Air filter element
Have a Yamaha dealer check the air filter ele-
ment at the intervals specified in the periodic
maintenance chart.
EJU34321Checking the jet thrust nozzle angle
Check the handlebars and jet thrust nozzle for
smooth operation.
Turn the handlebars as far as possible to the
right and left and check that the difference of
distances A and B between the jet thrust noz-
zle and the nozzle is within specification.
1Fuel tank
Recommended engine oil:
SAE 10W-30, 20W-40, 20W-50
Oil grade:
API SE,SF,SG,SH,SJ,SL
Oil quantity:
With oil filter replacement:
2.2 L (2.33 US qt, 1.94 Imp.qt)
Without oil filter replacement:
2.0 L (2.11 US qt, 1.76 Imp.qt)
Total amount:
4.3 L (4.55 US qt, 3.78 Imp.qt)
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Maintenance and care
73
(2) Connect the breather hose to the battery.
(3) Secure the battery in place. WARNING!
Fire or explosion could result if the
breather hose is damaged, obstruct-
ed, or not connected properly.
[EWJ00451]
EJU34491
Fuel injection system
If the fuel injection system is malfunctioning,
have a Yamaha dealer service the watercraft.
EJU34500Checking the trolling speed
(1) Place the watercraft in the water.
(2) Start the engine and warm it up. Use the
tachometer in the multifunction informa-
tion center to check the trolling speed.
If the trolling speed is out of specification,
have a Yamaha dealer service the watercraft.
1Positive (+) battery terminal: Red lead
2Negative (–) battery terminal: Black lead
3Breather hose
Trolling speed:
1650 ±50 r/min
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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
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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Index
A
Air filter element ....................................... 68
B
Battery ................................................ 44, 63
Battery, checking...................................... 72
Battery, jumping ....................................... 79
Beaching the watercraft ........................... 59
Bilge ......................................................... 43
Boarding alone ......................................... 54
Boarding and starting from a dock ........... 53
Boarding and starting in deep water ........ 53
Boarding and starting in shallow water .... 53
Boarding with passengers ........................ 54
Bow eye ................................................... 28
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 56
Check engine warning indicator ............... 34
Cleaning the watercraft ............................ 64
Cooling water pilot outlet .................... 26, 47
Craft Identification Number (CIN) ............... 1
Cruising limitations ................................... 10
D
Docking the watercraft ............................. 59
E
Emergency procedures ............................ 78
Engine break-in ........................................ 48
Engine compartment ................................ 42
Engine oil ................................................. 39
Engine oil and oil filter .............................. 68
Engine oil level ......................................... 42
Engine overheat warning indicator ........... 33
Engine serial number ................................. 1
Engine shut-off cord (lanyard) .................. 46
Engine shut-off switch .............................. 25
Engine stop switch ................................... 25
Enjoy your watercraft responsibly ............ 18
F
Fire extinguisher....................................... 44
Flushing the cooling system ..................... 62
Front storage compartment ...................... 35
Fuel .......................................................... 38
Fuel and oil............................................... 38
Fuel injection system................................ 73
Fuel level .................................................. 42Fuel level meter ........................................ 31
Fuel level warning indicator ...................... 32
Fuel system, checking .............................. 68
Fuel tank .................................................. 68
Fuel tank filler cap .................................... 24
Fuses, replacing ....................................... 79
G
Getting to know your watercraft ............... 51
Glove compartment .................................. 36
H
Handgrip ................................................... 27
Hazard information ................................... 14
Hood ......................................................... 23
Hour meter/voltmeter ............................... 32
Hull and deck ........................................... 42
I
Identification numbers ................................ 1
J
Jet intake .................................................. 46
Jet intake and impeller, cleaning .............. 78
Jet thrust nozzle angle, checking ............. 68
Jumper cables, connecting ...................... 79
L
Labels, important ........................................ 3
Labels, other .............................................. 7
Labels, warning .......................................... 4
Launching the watercraft .......................... 48
Learning to operate your watercraft ......... 51
Leaving the watercraft .............................. 50
Limitations on who may operate
the watercraft .......................................... 9
“L-MODE” indicator light
(for VX Deluxe/VX Cruiser) ................... 35
Lubrication................................................ 63
Lubrication points ..................................... 71
M
Main components, location of .................. 19
Maintenance and adjustments ................. 64
Model information....................................... 2
Multifunction information center ......... 31, 47
O
Oil pressure warning indicator .................. 33
Operating in weeded areas ...................... 60
Operating your watercraft ......................... 51
Operation ................................................. 48
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