air filter YAMAHA FX HO 2007 Owners Manual

Table of contents
Post-operation care ...................... 73
Transporting ................................. 75
Maintenance and care ..................... 76
Storage ......................................... 76
Flushing the cooling system ............ 76
Lubrication ....................................... 77
Fuel system ..................................... 77
Battery ............................................. 78
Cleaning the watercraft ................... 78
Maintenance and adjustments ..... 79
Owner’s/operator’s manual and
tool kit ........................................... 80
Periodic maintenance chart ............. 81
Checking the fuel system ................ 83
Engine oil and oil filter ..................... 83
Checking the air filter element ......... 84
Checking the jet thrust nozzle
angle ............................................ 85
Checking the shift cable .................. 85
Checking and adjusting the throttle
cable ............................................ 85
Cleaning and adjusting
the spark plugs ............................. 86
Lubrication points ............................ 87
Checking the battery ....................... 88
Fuel injection system ....................... 90
Specifications .................................. 91
Specifications ................................ 91
Trouble recovery ............................. 92
Troubleshooting ........................... 92
Troubleshooting chart ...................... 92
Emergency procedures ................ 94
Cleaning the jet intake and
impeller ........................................ 94
Jumping the battery ......................... 95
Replacing the fuses ......................... 96
Towing the watercraft ...................... 97
Submerged watercraft ..................... 97
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Features and functions
23
Engine compartment
1Air filter case
2Water separator
3Fuel tank
4Battery
5Flushing hose connector
6Electrical box
7Oil tank
8Muffler
9Spark plugs/Spark plug caps/Ignition coils
10Spark plug lead
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Operation
53
EJU32280Pre-operation check points EJU32330Engine compartment
Ventilate the engine compartment before
each use.
To ventilate the engine compartment, remove
the seats. (See page 24 for seat removal and
installation procedures.) Leave the engine
compartment open for a few minutes to allow
any fuel vapors to escape.
While the engine compartment is open, check
for loose electrical connections.
WARNING
EWJ00460
Failure to ventilate the engine compart-
ment could result in a fire or explosion. Do
not start the engine if there is a fuel leak or
a loose electrical connection.
EJU32350Hull and deck
Check the hull and deck for cracks and other
damage. If any damage is found, have a
Yamaha dealer repair the watercraft.
EJU32380Fuel level
Check the fuel system for leakage, cracks,
and malfunctions before each use. (See page
83 for check points and correct procedures.)
(1) Remove the fuel tank filler cap to release
any pressure that might have built up in
the fuel tank.(2) Remove the seats. (See page 24 for seat
removal and installation procedures.)
(3) Check the fuel level in the fuel tank and
replenish if necessary. (See page 50 for
filling procedures.)
(4) Install the fuel tank filler cap and the
seats.
EJU32411Engine oil level
Check the engine oil level before each use.
CAUTION:
ECJ00390

When checking the engine oil level on
water, be careful of other watercraft,
boats, swimmers, and obstacles. The
water current and wind can cause the
watercraft to move and lead to a colli-
sion.

When checking the engine oil level on
land, supply water to the cooling water
passages. (See page 76 for procedures
on supplying water.)

Make sure that the engine has enough
oil, but do not overfill it. If there is too lit-
tle oil, the engine can be damaged. If
there is too much oil, the air filter can be-
come saturated with oil, permanently
damaging the filter and reducing engine
performance. Follow the checking pro-
cedure carefully.

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.
To check the engine oil level:
(1) Place the watercraft in a horizontal posi-
tion or launch the watercraft, and then
start the engine.
(2) Run the engine at trolling speed for 6 min-
utes or more, and then stop the engine.
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Operation
69
tion, and then move to the seat and sit
astride to balance the watercraft.
(2) Have a passenger pull him or herself up
onto the boarding platform into a kneeling
position, then move to the seat and sit
astride to balance the watercraft.
(3) Attach the engine shut-off cord to your left
wrist, and then attach the clip to the en-
gine shut-off switch.
(4) Start the engine and keep it at idle.
(5) Have the second passenger pull him or
herself up onto the boarding platform into
a kneeling position, then crawl onto the
seat as the watercraft accelerates.(6) Gradually increase the speed to balance
the watercraft.
EJU33230Capsized watercraft
If the watercraft capsizes, turn it over immedi-
ately.
Be sure to carefully follow the procedures be-
low to prevent injury, or damage to the water-
craft.
WARNING
EWJ00670
IMPROPER UPRIGHTING CAN CAUSE IN-
JURY:

Be sure to shut the engine off by pulling
on the engine shut-off cord to remove
the clip from the engine shut-off switch.

Do not put your hands in the intake
grate.
CAUTION:
ECJ00530
If the watercraft capsizes, release the
throttle lever immediately. Oil could flow
into the air filter case and the engine could
be damaged.
(1) Remove the clip from the engine shut-off
switch.
(2) Swim to the rear of the watercraft. Pull the
watercraft over with your left hand on the
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Maintenance and care
77
water passages by alternately squeezing
and releasing the throttle lever for 10 to
15 seconds, making sure not to run the
engine over 6000 r/min.
(8) Stop the engine.
(9) Remove the garden hose adapter and in-
stall the flushing hose connector cap.
EJU33600Lubrication
WARNING
EWJ00260
Do not spray flammable rust inhibitor
products on engine surfaces while the en-
gine is hot. The sprayed substance or pro-
pellants could catch fire.
(1) Remove the seats. (See page 24 for seat
removal and installation procedures.)
(2) Remove the air filter case cover and the
air filter element. (See page 84 for air fil-
ter case cover and air filter element re-
moval and installation procedures.)
(3) Spray a rust inhibitor into each intake
opening for 3 seconds.
(4) Install the air filter element in the air filter
case, and then install the air filter case
cover.
(5) Start the engine in a well-ventilated area
and let it run at idle for 15 seconds.
CAUTION:
ECJ00160
Do not run the engine for more than 15
seconds, otherwise the engine could over-
heat.
(6) Lubricate all cables such as the throttle
and steering cables.
NOTE:
Use a suitable marine grease applicator to
pressure-lubricate the cables and purge out
any moisture between the inner and outer ca-
bles.
(7) Lubricate the areas of the watercraft
specified in “Lubrication points” on page
87.
EJU36380Fuel system
WARNING
EWJ00280
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!

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
1Intake opening
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Maintenance and care
82
* This operation should be performed after every use.
Nuts and boltsCheck—
Air filter elementCheck 84
Engine oilReplace 83
Oil filterReplace 83
Valve clearanceCheck, adjust— Item OperationInitial Thereafter every
Page 10
hours50
hours100
hours100
hours200
hours
6
months12
months12
months24
months
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Maintenance and care
83
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 50.
Oil quantity:
With oil filter replacement:
2.3 L (2.43 US qt) (2.02 Imp.qt)
Without oil filter replacement:
2.1 L (2.22 US qt) (1.85 Imp.qt)
Total amount:
4.5 L (4.76 US qt) (3.96 Imp.qt)
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Maintenance and care
84
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.
EJU34300Checking the air filter element
The air filter element should be checked every
12 months or every 100 hours of operation.
To check the air filter element:
(1) Remove the seats. (See page 24 for seat
removal and installation procedures.)
(2) Remove the air filter case cover screws,
slide the locks open, and then remove the
air filter case cover.
(3) Remove the air filter element and check it
for dirt and oil. Replace the air filter ele-ment if there is any oil buildup, or every 2
years or every 200 hours of operation.
(4) Install the air filter element in the air filter
case, and then install the air filter case
cover.
(5) Install the seats.
CAUTION:
ECJ00200

Make sure that the air filter element is in-
stalled in the air filter case properly.

Do not start the engine with the air filter
element removed, otherwise the pistons
and cylinders could be damaged.

If cleaning the air filter element, use cold
or lukewarm water and let it air dry com-
pletely. Do not use detergent or solvent
to clean the air filter element, or dry it
with hot or compressed air, otherwise it
could be damaged.
1Air filter case cover screw
2Lock
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Maintenance and care
86
EJU34381Cleaning 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 spark
plugs 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 air filter case cover and air
filter element. (See page 84 for air filter
element removal and installation proce-
dures.)
(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 plugor adjust the gap to specification if neces-
sary.
To install a spark plug:
(1) Clean the gasket surface.
(2) Wipe any dirt from the threads of the
spark plug.
(3) Install the spark plug, and then tighten it
to the specified torque.
(4) Install the spark plug cap.
NOTE:

Wipe off any water on the spark plug or in-
side the spark plug cap before installing the
cap. Push the spark plug cap down until it is
securely installed.

If a torque wrench is not available when you
are installing a spark plug, a good estimate
of the correct torque is 1/4 turn to 1/2 turn
past finger tight using the spark plug
wrench included in the tool kit. Have the
spark plug adjusted to the correct torque
with a torque wrench as soon as possible.
Specified spark plug:
CR9EB
1Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Spark plug tightening torque:
12.5 Nm (9.2 ft-lb) (1.27 kgf-m)
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Maintenance and care
87
WARNING
EWJ00350
Be careful not to damage the insulator
when removing or installing a spark plug.
A damaged insulator could allow sparks to
escape, which could result in a fire or ex-
plosion.
(5) Install the air filter element in the air filter
case, and then install the air filter case
cover.
EJU34432Lubrication points
To keep moving parts sliding or rotating
smoothly, coat them with water-resistant
grease.

Throttle cable (throttle body end)

Throttle bodies (throttle cable pulley, throt-
tle cam, and return spring)

Throttle cable (handlebar end)
Loosen the adjuster and disconnect the
outer cable from the bracket. Spray a rust
inhibitor into the outer cable. Connect the
outer cable, and then adjust the throttle ca-ble free play. (See page 85 for adjustment
procedures.)

Steering cable (handlebar end)

Steering cable (jet thrust nozzle end)

Jet thrust nozzle pivot shaft

QSTS cable (jet thrust nozzle end) Recommended water-resistant grease:
Yamaha Marine Grease/Yamaha
Grease A
1Adjuster
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