check engine YAMAHA VX CRUISER 2007 Owner's Manual

Operation
64
EJU33380
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.
NOTE:
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.
(4) Place the watercraft in a horizontal posi-
tion.
(5) Flush the cooling system to prevent it
from clogging with salt, sand, or dirt. (See
page 66 for flushing procedures.)(6) Drain residual water from the exhaust
system by alternately squeezing and re-
leasing the throttle lever for 10 to 15 sec-
onds while the engine is running.
CAUTION:
ECJ00560
Do not run the engine for more than 15
seconds, otherwise the engine could over-
heat.
(7) If the watercraft will be stored for a week
or more, lubricate internal engine compo-
nents to help prevent corrosion. (See
page 67 for lubrication procedures.)
(8) Rinse the engine and engine compart-
ment with a small amount of water.
CAUTION:
ECJ00570
Do not use high-pressure water when rins-
ing the engine or engine compartment as
severe engine damage could result.
(9) Wipe the engine and engine compart-
ment dry with a clean cloth (repeat step 3,
if necessary).
(10) Wipe the hull, handlebars, and jet unit dry
with a clean cloth.
(11) Spray a rust inhibitor on metallic parts to
minimize corrosion.
(12) Allow the engine compartment to air dry
completely before installing the seat.
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Maintenance and care
68

Do not smoke when refueling, and keep
away from sparks, flames, and other
sources of ignition.

Stop the engine before refueling.

Refuel in a well-ventilated area with the
watercraft in a horizontal position.

Do not stand or sit on the watercraft
while refueling in case of fire.

Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.

Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level reaches approxi-
mately 50 mm (2 in) from the top of the
fuel tank. Fuel expands as it warms up
and could overflow if the fuel tank has
been overfilled. If temporarily leaving
the watercraft with a full fuel tank, do not
leave it in direct sunlight. Leave it in a
well-ventilated area with the watercraft
in a horizontal position.

Tighten the fuel tank filler cap securely
after refueling.

If you should swallow some gasoline, in-
hale a lot of gasoline vapor, or get gaso-
line in your eyes, get immediate medical
attention.

If any gasoline spills on your skin or
clothing, immediately wash the affected
area with soap and water and change
your clothes.
Top off the fuel tank with fresh gasoline and
add fuel stabilizer and conditioner to the fuel
tank according to the manufacturer’s instruc-
tions.
EJU33680Battery
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.
CAUTION:
ECJ00100
Always keep the battery charged. Storing
a discharged battery can cause permanent
battery damage.
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.
EJU33730Cleaning the watercraft
Clean the watercraft before storing it for a long
period.
(1) Wash down the hull, handlebars, and jet
unit with fresh water. Specific gravity (for reference):
1.28 at 20 °C (68 °F)
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Maintenance and care
71
EJU33820Periodic 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 75
Lubrication pointsLubricate 76
Fuel systemCheck 73
Fuel tankCheck, clean 73
Trolling speedCheck, adjust 78
Throttle shaftCheck—
Cooling water pas-
sagesFlush
*66
Water inlet strain-
erCheck, clean—
Bilge strainerClean—
ImpellerCheck—
Jet thrust nozzle
angleCheck, adjust 74
Shift cable and re-
verse gate (VX De-
luxe/VX Cruiser)Check, adjust 74
Throttle cableCheck, adjust 75
Stern drain plugsCheck, replace 47
BatteryCheck, charge 77
Rubber couplingCheck—
Engine mountCheck—
Nuts and boltsCheck—
Air filter elementCheck 74
Engine oilReplace 73
Oil filterReplace 73
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Maintenance and care
73
EJU34210Checking the fuel system
WARNING
EWJ00380
Gasoline is highly flammable and explo-
sive. Failure to check for and repair any
fuel leakage could result in a fire or explo-
sion. A fire or explosion can cause severe
injury or death. Shut the engine off. Do not
smoke. Avoid spilling gasoline.
Fuel in the fuel lines is pressurized.
Fuel can spray out and cause injury or a
fire hazard if a fuel line is disconnected.
Do not run the engine with a fuel line dis-
connected.
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 leakage.EJU34230Fuel 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.
EJU34290Engine 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.
CAUTION:
ECJ00180

Do not run the engine with too much or
not enough oil in the oil tank. Oil could
spray out and the engine could be dam-
aged.

Be sure to change the engine oil after
the first 10 hours of operation, and every
100 hours thereafter or at the start of a
new season, otherwise the engine will
wear quickly.
The oil filter should be replaced every
year or every 100 hours of operation.
Have a Yamaha dealer replace the oil fil-
ter if necessary.
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.
NOTE:
Dispose of used oil according to local regula-
tions.
1Fuel tank
Recommended engine oil:
See page 42.
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
74
CAUTION:
ECJ00190
If oil is leaking or the oil pressure warning
indicator comes on when the engine is
running, immediately shut the engine off
and have a Yamaha dealer check the wa-
tercraft. Continuing to operate the engine
under such conditions could cause severe
engine damage.
EJU34310Air filter element
Have a Yamaha dealer check and clean or re-
place the air filter element every 12 months or
every 100 hours of operation.
EJU34320Checking 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.
If the steering is stiff or misadjusted, have a
Yamaha dealer service it.
EJU34350Checking the shift cable (for VX
Deluxe/VX Cruiser)
Place the shift lever in the reverse position.
Make sure that the reverse gate makes con-
tact with the stopper.Difference of A and B:
Maximum 5 mm (0.20 in)
1Stopper
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Maintenance and care
75
If the reverse gate does not make contact with
the stopper, have a Yamaha dealer service it.
EJU34360Checking and adjusting the throttle
cable
Check that the throttle cable moves back to
the set position smoothly and that the throttle
lever free play is within specification.
(1) Squeeze and release the throttle lever. If
the throttle lever does not return smooth-
ly, have a Yamaha dealer service it.
(2) Adjust the free play by loosening the lock-
nut and turning the adjuster.
EJU34391Cleaning and adjusting the spark
plugs
The spark plug is an important engine compo-
nent and is easy to inspect. The condition of
the spark plug can indicate something about
the condition of the engine. For example, if
one spark plug has a distinctly different color,
the engine could require servicing. Do not at-
tempt to diagnose any problems yourself.
Have a Yamaha dealer service the watercraft.
Remove and inspect the spark plugs periodi-
cally; heat and deposits will cause the sparkplugs to slowly break down and erode. If elec-
trode erosion becomes excessive, or if carbon
and other deposits are excessive, replace the
spark plug with the specified plug.
To remove a spark plug:
(1) Remove the seat. (See page 26 for seat
removal and installation procedures.)
(2) Remove the spark plug cap.
CAUTION:
ECJ00210
Do not use any tools to remove or install
the spark plug cap, otherwise the ignition
coil coupler could be damaged. The spark
plug cap may be difficult to remove be-
cause the rubber seal on the end of the
cap fits tightly. To remove the spark plug
cap, simply twist it back and forth while
pulling it up; to install it, twist it back and
forth while pushing it down.
(3) Remove the spark plug.
Measure the spark plug gap with a wire
thickness gauge. Replace the spark plug
or adjust the gap to specification if neces-
sary.1Locknut
2Adjuster
3Throttle lever free play
Throttle lever free play:
4.0–7.0 mm (0.16–0.28 in)
Specified spark plug:
CR9EB
1Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
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Maintenance and care
78
(1) Remove all of the battery caps.
(2) If the electrolyte level is low, add distilled
water to raise it to the specified level.
(3) Set the charging rate to 1.9 ampere and
charge the battery slowly until the explo-
sive gases are discharged vigorously
from the battery cells.
To install the battery:
(1) Place the battery in the battery compart-
ment and connect the battery leads to the
battery terminals.
(2) Connect the breather hose to the battery.
(3) Secure the battery in place.
WARNING
EWJ00400
Be sure to connect the breather hose to
the battery. Fire or explosion could result
if the breather hose is damaged, obstruct-
ed, or not connected properly.
CAUTION:
ECJ00260
After installation, make sure that the bat-
tery leads are properly connected to the
battery terminals.
EJU34490Fuel injection system
The fuel injection system was set at the
Yamaha factory. If the fuel injection systemneeds to be adjusted, have a Yamaha dealer
service the watercraft.
CAUTION:
ECJ00220
Do not attempt to adjust the fuel injection
system. If the settings are disturbed by
someone who does not have the neces-
sary technical knowledge, poor engine
performance and damage may result.
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
80
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.
EJU34591Troubleshooting 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
32
Engine shut-
off switchClip not in place Install clip
28
Fuse Burned out Replace the fuse and
check wiring84
Battery Run down Recharge 77
Poor terminal con-
nectionsTighten as required
77
Terminal corroded Clean 68
Starter motor Faulty Have serviced by
Yamaha dealer—
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 29
Fuel Empty Refill as soon as pos-
sible42
Stale or contaminat-
edHave serviced by
Yamaha dealer73
Fuel tank Water or dirt present Have serviced by
Yamaha dealer73
Spark plug Fouled or defective Clean or replace 75
Spark plug
capNot connected or
looseConnect properly
75
Connected to wrong
cylinderConnect properly
75
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
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Trouble recovery
81
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible42
Stale or contaminat-
edHave serviced by
Yamaha dealer73
Fuel tank Water or dirt present Have serviced by
Yamaha dealer73
Spark plug Fouled or defective Replace 75
Incorrect heat range Replace 75
Gap incorrect Adjust 75
Spark plug
capLoose Connect properly 75
Cracked, torn, or
damagedReplace
—
Electrical wir-
ingLoose connection Tighten or connect
properly—
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-
sible42
Engine over-
heatedJet intake clogged Clean
82
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer37
Watercraft slow or
loses powerYamaha Se-
curity Sys-
tem (VX
Deluxe/VX
Cruiser)Low-RPM mode se-
lectedSelect normal mode
33
Cavitation Jet intake clogged Clean 82
Impeller damaged or
wornHave serviced by
Yamaha dealer82
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine36
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
35
Spark plug Fouled or defective Replace 75
Incorrect heat range Replace 75
Gap incorrect Adjust 75
Spark plug
capsLoose Connect properly
75
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer73
Air filter Clogged or oil buildup Have serviced by
Yamaha dealer74 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
82
EJU34620
Emergency procedures EJU34630Cleaning the jet intake and impeller
If weeds or debris get 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. If
there is any sign that the jet intake or impeller
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.
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 incontact with the rotating parts of the jet
pump.
CAUTION:
ECJ00650
If weeds or debris get caught in the jet in-
take, do not operate the watercraft above
trolling speed until they have been re-
moved.
(1) Turn the watercraft on its side as shown.
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