ECU YAMAHA FX HO 2007 User Guide

Features and functions
48
NOTE:
Make sure that the watertight compartment
cap is closed securely before operating the
watercraft.
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Operation
49
EJU31820
Fuel and oil
This watercraft is equipped with a 4-stroke en-
gine. Conventional 2-stroke engine oil cannot
be used.
The engine utilizes an electronic fuel injection
system to deliver the optimal air-fuel ratio re-
quired by the engine. By ensuring the optimal
combustion conditions, this system is able to
increase startability and improve fuel econo-
my.
EJU36330Gasoline
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
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.
CAUTION:
ECJ00320

Do not use leaded gasoline. Leaded gas-
oline can seriously damage the catalytic
converter.

Use only fresh gasoline that has been
stored in clean containers.
EJU31860Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and the
fuel meets the minimum octane ratings.
Gasohol containing methanol is not recom-
mended by Yamaha because it can cause
fuel system damage and engine performance
problems.Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of
86 (Pump octane number) = (R +
M)/2
90 (Research octane number)
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Operation
51
EJU31980
Pre-operation checks EJU31990Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the accom-
panying text in this chapter for details on how to perform the checks.
WARNING
EWJ00410
If any item in the pre-operation check list is not working properly, have it inspected and
repaired before operating the watercraft, otherwise an accident could occur.
ITEM ROUTINE PAGE
BEFORE LAUNCH OR OPERATION
Engine compartmentRemove the seats to ventilate the engine compart-
ment. Check for fuel vapors and loose electrical con-
nections.53
BilgeCheck for water and fuel and drain if necessary. 54
Stern drain plugsCheck for proper installation. 55
Throttle leverCheck that the throttle lever springs back smoothly. 57
Steering systemCheck for proper operation.
Check that the handlebars are locked in place.57
Shift lever and reverse gateCheck for proper operation. 57
QSTSCheck for proper operation. 58
Fuel and oilCheck the fuel and oil levels and replenish if neces-
sary.
Check the hoses and tanks for leakage.53, 53
Water separatorCheck for water and drain if necessary. 54
BatteryCheck the electrolyte level and battery condition. 55
HoodCheck that the hood is securely closed. 25
Front and rear seatsCheck that the seats are securely installed. 24
Hull and deckCheck the hull and deck for cracks and other dam-
age.53
Jet intakeCheck for debris and remove if necessary. 59
Fire extinguisherCheck the condition and replace if necessary. 56
Engine shut-off cordCheck the condition and replace if frayed or broken. 59
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.60
AFTER LAUNCH
Cooling water pilot outletCheck that water is discharged while the engine is
running and the watercraft is in the water.60
Multifunction information
centerCheck for warning indications and proper operation. 60
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Operation
55
the water is discharged from the electric bilge
pilot outlet at the stern.
A small quantity of water will remain in the
bilge and should be drained manually. To
drain any residual water, beach the watercraft
and perform the following procedure.
CAUTION:
ECJ00350
If starting the engine after the watercraft
has capsized, do not operate the engine at
full throttle when water is being dis-
charged from the electric bilge pilot outlet
at the stern. Excessive water in the bilge
can splash into the engine, which can re-
sult in severe damage.
To drain water from the bilge:
(1) Remove the stern drain plugs.
(2) Raise the bow of the watercraft until the
water drains.
(3) After the water has drained, wipe the
bilge with dry rags to make sure that it is
thoroughly dry.
(4) Install the stern drain plugs.
CAUTION:
ECJ00360

Before installing the stern drain plugs,
clean the drain plug threads to remove
any foreign materials, such as dirt or
sand. Otherwise, the stern drain plugscould be damaged, allowing water to en-
ter the engine compartment.

Make sure that the stern drain plugs are
tightened securely before launching the
watercraft. Otherwise, water may flood
the engine compartment and cause the
watercraft to submerge.
EJU32470Stern drain plugs
Check the stern drain plugs for proper instal-
lation.
CAUTION:
ECJ00360

Before installing the stern drain plugs,
clean the drain plug threads to remove
any foreign materials, such as dirt or
sand. Otherwise, the stern drain plugs
could be damaged, allowing water to en-
ter the engine compartment.

Make sure that the stern drain plugs are
tightened securely before launching the
watercraft. Otherwise, water may flood
the engine compartment and cause the
watercraft to submerge.
EJU32480Battery
Check the battery condition and the electro-
lyte level.
1Electric bilge pilot outlet
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Operation
56
Check that the battery leads are tightened se-
curely and that there is no corrosion on the
battery terminals.
WARNING
EWJ00450

The battery must always be fully
charged and in good condition. Loss of
battery power may leave you stranded.
Never operate the watercraft if the bat-
tery does not have sufficient power to
start the engine or if it shows any other
signs of decreased power.

Be sure to connect the breather hose to
the battery. Fire or explosion could re-
sult if the breather hose is damaged, ob-
structed, or not connected properly.
Make sure that the battery is securely held in
place.
EJU32580Fire extinguisher
Check that there is a full fire extinguisher on
board.
The fire extinguisher container is located in
the seat storage compartment.
To open the fire extinguisher container, turn
the cap counterclockwise.
To close the fire extinguisher container, insert
the fire extinguisher into the container, and
then install the cap and tighten it securely.
NOTE:

To check the fire extinguisher, see the in-
structions supplied by the fire extinguisher
manufacturer. Always keep the fire extin-
guisher in the fire extinguisher container.

Always carry a fire extinguisher on board. A
fire extinguisher is not standard equipment
with this watercraft. If you do not have one,
1Positive (+) battery terminal: Red lead
2Negative (–) battery terminal: Black lead
3Breather hose
1Fire extinguisher container
2Fire extinguisher container cap
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Operation
61
EJU32740
Operation
WARNING
EWJ00510
Before operating your watercraft, become
familiar with all of the controls. Consult a
Yamaha dealer about any control or func-
tion that you do not fully understand. Fail-
ure to understand how the controls work
could cause an accident or prevent you
from avoiding an accident.
CAUTION:
ECJ00460
Make sure that the stern drain plugs are
tightened securely before launching the
watercraft.
EJU36140Engine break-in
The engine break-in period is essential to al-
low the various components of the engine to
wear and polish themselves to the correct op-
erating clearances. This ensures proper per-
formance and promotes longer component
life.
CAUTION:
ECJ00440
Be sure to check the engine oil level be-
fore operating the watercraft for the first
time. (See page 53 for engine oil checking
procedures.)
(1) Launch the watercraft and start the en-
gine. (See page 61 for engine starting
procedures.)
(2) For the first 5 minutes, run the engine at
trolling speed only. For the 30 minutes of
operation after that, keep the engine
speed below 5000 r/min. For the 1 hour of
operation after that, keep the engine
speed below 8000 r/min.
(3) Proceed with normal operation.
CAUTION:
ECJ00430
Failure to follow the engine break-in pro-
cedure could result in reduced engine life
or even severe engine damage.
EJU32801Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles behind you.
Use the remote control transmitter to select
the unlock mode. (See page 33 for Yamaha
Security System lock and unlock mode selec-
tion procedures.)
After the watercraft is in the water, start the
engine. Shift into reverse and move the water-
craft back slowly. If there are waves, some-
one should make sure that the watercraft is
not pushed into the trailer before backing
away.
EJU36340Starting the engine
WARNING
EWJ00560
Never start the engine or let it run for any
length of time in an enclosed area. Ex-
haust fumes contain carbon monoxide, a
colorless, odorless gas that may cause
loss of consciousness and death within a
short time. Always operate the watercraft
in an open area.
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Operation
62
(1) If the lock mode of the Yamaha Security
System is selected, use the remote con-
trol transmitter to select the unlock mode.
(See page 33 for Yamaha Security Sys-
tem lock and unlock mode selection pro-
cedures.)
(2) Launch the watercraft in water free from
weeds and debris and at least 60 cm (2 ft)
deep.
WARNING
EWJ00570
Never operate in water that is less than 60
cm (2 ft) deep, otherwise you increase
your chance of hitting a submerged ob-
ject, which could result in injury.
CAUTION:
ECJ00470
Never operate in water that is less than 60
cm (2 ft) deep, otherwise pebbles or sand
could be sucked into the jet intake, caus-
ing impeller damage and engine overheat-
ing.
(3) Attach the engine shut-off cord to your left
wrist, and then attach the clip to the en-
gine shut-off switch.
WARNING
EWJ00580
Check that the engine shut-off cord is not
frayed or broken, and keep it free from the
handlebars so that the engine stops if the
operator falls off. The engine shut-off cord
may not pull free if wrapped around the
handlebars when the operator falls off, al-
lowing the watercraft to continue to run
and cause an accident.
NOTE:
It is not possible to start the engine with the
clip removed from the engine shut-off switch.
1Clip
2Engine shut-off switch
3Engine shut-off cord
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Operation
63
(4) Push the start switch (green button), and
then release it as soon as the engine
starts to run.
NOTE:
The engine will not start if the throttle lever is
squeezed.
CAUTION:
ECJ00480

Never push the start switch while the en-
gine is running.

Do not operate the start switch for more
than 5 seconds, otherwise the battery
will be discharged and the engine will
not start. Also, the starter motor could
be damaged. If the engine does not start
in 5 seconds, release the start switch,
wait 15 seconds, and then try again.
EJU32860Stopping the engine
To stop the engine, release the throttle lever,
and then push the engine stop switch (red
button).
WARNING
EWJ00600
You need throttle to steer. Shutting the en-
gine off can cause you to hit an obstacle
you are attempting to avoid. A collision
could result in severe injury or death.
EJU32881Leaving the watercraft
If leaving the watercraft, select the lock mode
of the Yamaha Security System and remove
the engine shut-off cord to reduce the chance
of accidental starting or unauthorized use by
children or others. (See page 33 for Yamaha
Security System lock and unlock mode selec-
tion procedures.)
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Operation
67
EJU36350Boarding alone
(1) Swim to the rear of the watercraft and
place both hands on the boarding plat-
form, pull yourself up, and then grasp the
handgrip with one hand.
(2) Pull yourself up to a kneeling position on
the platform, and then move to the seat
and sit astride.
(3) Attach the engine shut-off cord to your left
wrist, and then attach the clip to the en-
gine shut-off switch.
(4) Grip the handlebars with both hands,
place both feet on the floor of the footwell,start the engine, and then look in all direc-
tions before starting off.
NOTE:
This watercraft is equipped with a reboarding
step, which you can lower to make reboarding
easier. The step returns automatically to the
up position after you have boarded.
WARNING
EWJ00610
Before starting off, make sure that there
are no boats, swimmers, or obstacles
around you.
EJU33161Boarding with passengers
WARNING
EWJ00660
Severe internal injuries can occur if water
is forced into body cavities as a result of
being near the jet thrust nozzle. Do not ap-
ply throttle until the passengers are seated
with their feet on the floor of the footwell
and are securely holding on to the person
in front of them or to the handgrip provid-
ed.
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Operation
68
(1) Climb on board as noted in the previous
section, and sit astride the seat.
(2) Attach the engine shut-off cord to your left
wrist, and then attach the clip to the en-
gine shut-off switch.
(3) Have the passengers move to the rear of
the watercraft.
(4) Have a passenger board and sit astride
the seat. If a second passenger is board-
ing, have him or her follow the same pro-
cedure.NOTE:
When a passenger is boarding, both the pas-
sengers and the operator should try to bal-
ance the watercraft.
(5) Check that the passengers have their
feet on the floor of the footwell and are
securely holding on to the person in front
of them or to the handgrip provided. Nev-
er allow a passenger to ride in front of the
operator.
(6) Start the engine, look in all directions, and
then accelerate to planing speed.
WARNING
EWJ00610
Before starting off, make sure that there
are no boats, swimmers, or obstacles
around you.
NOTE:
The heavier the total weight of the operator
and passengers, the more difficult it will be to
balance the watercraft. Do not operate the
watercraft when the total weight exceeds 240
kg (530 lb) including any cargo. If it is difficult
to balance the watercraft at a standstill, pro-
ceed as follows:
(1) While the passengers are steadying the
watercraft, pull yourself up onto the
boarding platform into a kneeling posi-
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