2006 YAMAHA FX HO Owners Manual

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EJU18660
Post-operation checks
Always perform the following post-opera-
tion checks after operating the watercraft.
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 water in the bilge to
drain out.
NOTE:@ This watercraft is equipped with a jet vac-
uum bilge draining system and an electric
bilge draining system that remove water
from the engine compartment while you are
underway. However, some residual water will
remain. (See “Bilge” on page 3-9 for more
information.)
@
4. Put the watercraft in a horizontal posi-
tion.
5. Flush the cooling system to prevent it
from clogging with salt, sand, or dirt.
(See page 4-1 for flushing procedures.)
6. Drain residual water from the exhaust
system by alternately squeezing and
releasing the throttle lever for 10 to
15 seconds while the engine is running.
CAUTION:@ Do not run the engine for more than
15 seconds on land. The engine could
overheat.
@
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7. If the watercraft will be stored for a week
or more, lubricate internal engine com-
ponents to help prevent corrosion. (See
page 4-3 for lubrication procedures.)
8. Rinse the engine and engine compart-
ment with a small amount of water.
CAUTION:@ Do not use high pressure when rinsing
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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Transporting
When transporting the watercraft on a
trailer, secure the tie downs to the trailer
through the bow eye and stern eyes.
CAUTION:@
Do not use any projections other than
the bow eye and stern eyes to secure
the watercraft to the trailer. Otherwise,
the watercraft may be damaged.

Do not route ropes or tie downs over
the seat, as they may leave permanent
marks on the seat’s surface. Also,
wrap the ropes or tie downs with tow-
els or rags where they touch the body
of the watercraft to avoid scratches or
damage.

Before putting the watercraft on the
trailer or transporting it, be sure to put
the shift lever in the forward position,
otherwise the reverse gate may hit an
obstruction, which may cause dam-
age.
@
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E
–MEMO–
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4
EJU10860
MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-4
Battery .................................................... 4-5
Cleaning the watercraft .......................... 4-6
Maintenance and adjustments .............. 4-7
Owner’s/Operator’s Manual and
tool kit ..................................................... 4-9
Periodic maintenance chart ................. 4-10
Inspecting the fuel system ................... 4-11
Changing the engine oil ....................... 4-12
Checking the air filter element ............. 4-14
Inspecting the jet thrust
nozzle angle ......................................... 4-15
Inspecting the shift cable ..................... 4-15
Inspecting and adjusting the
throttle cable ......................................... 4-15
Cleaning and adjusting the
spark plugs ........................................... 4-16
Lubrication points ................................. 4-18
Inspecting the battery .......................... 4-21
Adjusting the fuel injection system ...... 4-23
Replacing the fuse ............................... 4-24
Specifications ........................................ 4-25
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EJU18121
Storage
WARNING@ Always place the watercraft upright in a
horizontal position when storing it, oth-
erwise fuel could leak out into the engine
or engine compartment, which could
result in a fire hazard.
@
Storage for prolonged periods of time,
such as winter storage, requires preventa-
tive maintenance to ensure against deterio-
ration. It is advisable to have the watercraft
serviced by a Yamaha dealer prior to stor-
age. However, the following procedures can
be performed by the owner.
EJU18132
Flushing the cooling system
Flushing the cooling system is essential
to prevent the cooling system from being
clogged with salt, sand, or dirt.
CAUTION:@
Do not supply water to the cooling
water passages when the engine is not
running. The water could flow back
through the muffler into the crankcase
causing severe engine damage.

Do not run the engine of the watercraft
for more than 15 seconds without sup-
plying water, otherwise the engine may
overheat.
@
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1. Put the watercraft on land in a horizontal
position.
2. Remove the rear seat and seat storage
compartment. (See page 2-5 for seat
removal and installation procedures.)
3. Open the flushing hose connector
cap1, and then insert the garden hose
adapter 2 into the flushing hose con-
nector 3 and turn it until it is securely
connected.
4. Connect the garden hose adapter to a
water tap using a hose.
NOTE:@ The garden hose is not included and must
be purchased separately.
@
5. Start the engine, and then immediately
turn the water supply on until water flows
out continually from the jet nozzle.
6. Run the engine at idling speed for about
3 minutes watching the engine condition.
If the engine stops while flushing, turn
the water supply off immediately and
repeat the above steps.
7. Turn the water supply off, and then force
the remaining water out from the cooling
passages by alternately squeezing and
releasing the throttle lever for 10 to 15
seconds.
8. Stop the engine.
9. Remove the garden hose adapter and
secure the cap.
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Lubrication
WARNING@ Do not spray flammable rust inhibitor
products on engine surfaces while the
engine is hot. The sprayed substance or
propellants could catch fire.
@
1. Remove the rear and front seats. (See
pages 2-5 to 2-6 for seat removal and
installation procedures.)
2. Remove the air filter case cover
screws1, slide the locks 2 open, and
then remove the case cover.
3. Remove the air filter case cover and air
filter element.
4. Spray a rust inhibitor into each intake
opening 3 for 3 seconds.
5. Install the air filter element and air filter
case cover.
6. Start the engine in a well-ventilated area
and let it run at idle for 15 seconds.
CAUTION:@ Do not run the engine for more than
15 seconds. The engine could overheat.
@
7. 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
cables.
@
8. Lubricate the areas of the watercraft
specified under Lubrication points on
page 4-18.
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