YAMAHA FX HO 2006 Service Manual

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Cooling water pilot outlet
This watercraft is equipped with cooling
water pilot outlets.
When the engine is running, cooling
water is circulated in the engine, and then it
is discharged from the pilot outlets.
To check for proper operation of the cool-
ing system, check that water is being dis-
charged from the port (left) pilot outlet. If
water is not being discharged from this out-
let, cooling water may not be circulating in
the engine. When this occurs, stop the
engine and check for the cause. (See pages
2-30 and 5-3 for further instructions.)
NOTE:@
If the cooling water passages are dry, it
will take about 60 seconds for the water to
reach the outlet after the engine is
started.

Water discharge may not be constant at
idle, therefore, open the throttle a little to
check that water discharges properly.

Water discharge may not be constant at
the starboard (right) pilot outlet, however,
if it is constant at the port (left) pilot outlet,
the cooling system is operating normally.
@
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Steering system
Your watercraft can be steered by turning
the handlebars 1 in the direction you wish
to travel.
When the handlebars are turned, the
angle of the jet thrust nozzle 2 is changed
and the direction of the watercraft is
changed accordingly. Since the strength of
the jet thrust determines the speed and
degree of a turn, throttle must always be
applied when attempting a turn, except at
trolling speed.
This model has the Yamaha Engine Man-
agement System (YEMS) that includes an
Off-Throttle Steering (OTS) system. It will
activate at planing speeds should you
attempt to steer the watercraft after releas-
ing the throttle lever. The OTS system
assists in turning by continuing to supply
some thrust while the watercraft is deceler-
ating, but you can turn more sharply if you
apply throttle while turning the handlebars.
The OTS system does not function below
planing speeds or when the engine is off.
Once the engine slows down, the watercraft
will no longer turn in response to handlebar
input until you apply throttle again or you
reach trolling speed.
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Tilt lever
The tilt lever 1 is located in front of the
glove compartment and is used to adjust the
tilt of the handlebars.
To adjust the tilt, pull the tilt lever up, and
then move the handlebars up or down to the
desired position.
WARNING@
Never touch the tilt lever during opera-
tion, otherwise the handlebars may
suddenly change position, which may
lead to an accident.

Be sure to fasten the tilt lever properly
after adjusting the handlebar position.
If the handlebars are not properly fas-
tened, they may suddenly change
position, which may lead to an acci-
dent.
@
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Shift lever
The shift lever is located on the starboard
(right) side of the watercraft and is used to
control the reverse gate, which allows the
watercraft to move in reverse or forward.
When the shift lever is in the reverse posi-
tion, the watercraft can be launched from a
trailer, or backed up out of tight spots where
you cannot turn around easily.
To shift into reverse:
1. Release the throttle and let the engine
speed return to idle.
2. Pull the shift lever toward you.
WARNING@
Make sure that the throttle is com-
pletely released and that the engine is
at idle before shifting into reverse.

Do not use the reverse function to
slow down or stop the watercraft as it
could cause you to lose control, be
ejected, or impact the handlebars.

Use reverse for slow-speed maneuver-
ing only.

Make sure that there are no obstacles
or people behind you before shifting
into reverse.

Do not touch the reverse gate while the
shift lever is being operated, otherwise
you could be pinched.
@
To shift into forward:
1. Release the throttle and let the engine
speed return to idle.
2. Push the shift lever away from you.
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Quick Shift Trim System
(QSTS) selector
The QSTS selector 1 is located at the
left handlebar grip and is used to adjust the
trim angle of the watercraft.
Operating the QSTS selector changes the
angle of the jet thrust nozzle vertically. This
changes the trim angle of the watercraft.
There are 5 positions: 2 bow down posi-
tions A and B, neutral “N,” and 2 bow up
positions C and D.
To change the trim angle:
1. Reduce engine speed to 4,000 r/min or
less.
2. Squeeze the shift lock lever 2, and then
turn the QSTS selector to the desired
position.
3. Release the shift lock lever to lock the
QSTS selector.
CAUTION:@ Do not turn the QSTS selector while
operating the watercraft at full throttle,
otherwise damage could occur to the
QSTS.
@
The neutral “N” position will provide good
performance for most operating conditions.
To enhance particular types of perfor-
mance, select bow down or bow up.
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Bow down
Turn the grip to A or B and the bow will
go down while the watercraft is on plane.
Bow down puts more of the bow in the
water. This gives the watercraft more “hook,”
which enhances turning performance. This
position will also help the watercraft get up
on plane more quickly.
At higher speeds, however, the watercraft
will have greater tendency to “bow steer”
and follow waves and wakes in the water.
Fuel economy and maximum speed are also
reduced.
EJU10240
Bow up
Turn the grip to C or D and the bow will
go up while the watercraft is on plane.
Bow up puts less of the bow in the water.
There is less water resistance, so straight-
ahead acceleration when on plane and top
speed are enhanced.
In some conditions, however, the water-
craft may tend to “porpoise” (hop in the
water). If the watercraft is porpoising,
choose neutral or bow down.
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Handgrip
The handgrip 1 provides a handhold for
boarding the watercraft and for a spotter
when facing rearward.
WARNING@ Do not use the handgrip to lift the water-
craft. The watercraft could fall, which
could result in severe injury.
@
EJU22230
Reboarding step
(for FX Cruiser High Output)
The reboarding step 1 provides a hand-
hold and footstep for boarding the water-
craft.
CAUTION:@ Use the reboarding step only to board
the watercraft in the water. Do not use
the reboarding step for lifting the water-
craft, as a footstep when the watercraft is
on land, or for any other purpose. The
watercraft can be damaged.
@
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Pull-up cleats
(for FX Cruiser High Output)
The pull-up cleats 1 are used to attach a
rope to the watercraft for mooring.
To use a pull-up cleat, pull it up.
WARNING@ Do not use the pull-up cleats to lift the
watercraft. The watercraft could fall,
which could result in severe injury.
@
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Yamaha Engine Management
System (YEMS)
This model is equipped with an inte-
grated, computerized management system
that controls and adjusts ignition timing, fuel
injection, engine diagnostics, and the Off-
Throttle Steering (OTS) system.
EJU20723
Yamaha Security System/
Low-RPM mode
This watercraft is equipped with a remote
control transmitter 1 that is used to select
the security system and low-RPM mode set-
tings. Since the watercraft is programmed to
recognize the internal code from this trans-
mitter only, the security system setting can
only be changed with this transmitter. If you
lose the remote control transmitter or it does
not operate properly, contact a Yamaha
dealer.
EJU21561
Yamaha Security System
The Yamaha Security System functions to
help prevent unauthorized use or theft of the
watercraft. The engine cannot be started if
the security system is in the lock mode. The
engine can only be started in the unlock
mode.
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Yamaha Security System lock and
unlock modes
The lock and unlock modes of this system
can only be selected while the engine is
stopped.
When the lock button 1 is pressed, the
beeper sounds once. This indicates the lock
mode is selected and the engine cannot be
started.
The “UNLOCK” indicator light 2 comes
on when the security system is in the unlock
mode and goes off when the security sys-
tem is in the lock mode.
When the unlock button 3 is pressed for
a short time, the beeper sounds two times
for the normal mode or three times for the
low-RPM mode. The “UNLOCK” indicator
light will come on and the engine can be
started. (See the items in “Selecting the nor-
mal mode/low-RPM mode” for operation
mode information.)
Number of
beepsYamaha Security
System modeEngine can
be started
1 beep Lock NO
2 beepsUnlock
(normal mode)YES
3 beepsUnlock
(low-RPM mode)YES
E_F1X-70.book Page 21 Friday, August 26, 2005 11:00 AM