Page 67 of 134
3-10
E
EJU01834
Throttle
Squeeze and release the throttle lever
several times to make sure that there is no
hesitation in its travel. It should be smooth
over the complete range, and spring back to
the idle position when released.
WARNING@ Before starting the engine, always check
the operation of the throttle lever.
@
EJU01848
Steering system
Check for looseness in the handlebars.
Turn them as far as possible to the right
and left to make sure that operation is
smooth and unrestricted throughout the
whole range. Make sure that the jet thrust
nozzle also changes directions as the han-
dlebars are turned, and that there is no free
play between the handlebars and the jet
thrust nozzle.
Check that the handlebars are locked in
position. (See “Tilt lever” on page 2-12 for
more information.)
UGU572.book Page 10 Wednesday, August 28, 2002 1:31 PM
Page 68 of 134
3-11
E
EJU01245
Shift lever and reverse gate
Check for proper operation of the shift
lever and reverse gate.
Make sure that the reverse gate goes
down to its stopper position when the shift
lever is pulled up.
Also, make sure that the reverse gate
goes up to its stopper position when shift
lever is pushed down.
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.
@
UGU572.book Page 11 Wednesday, August 28, 2002 1:31 PM
Page 69 of 134
3-12
E
EJU01058
Jet unit
Carefully check the jet intake for weeds,
debris, or anything else that might restrict
the intake of water. If the intake is clogged,
cavitation could occur, reducing jet thrust,
and possibly damaging the jet pump.
In some cases, the engine may overheat
because of lack of cooling water, and dam-
age to the engine could result. Engine cool-
ing water is fed to the engine by the jet
pump. (See page 5-4 for jet intake cleaning
procedures.)
WARNING@ Keep away from intake grate while
engine is on. Items such as long hair,
loose clothing, or PFD straps can
become entangled in moving parts
resulting in severe injury or drowning.
Stop the engine and remove the clip
from the engine shut-off switch before
removing any debris or weeds, which
may have collected around the jet
intake.
@
EJU01059
Engine shut-off cord (lanyard)
Check that the engine shut-off cord is not
frayed or broken. If the cord is damaged,
replace it; never try to repair it or tie it
together.
UGU572.book Page 12 Wednesday, August 28, 2002 1:31 PM
Page 71 of 134
3-14
E
EJU01836
Operation
WARNING@ Before operating your watercraft,
become familiar with all controls. Con-
sult your Yamaha dealer about any con-
trol or function you do not fully
understand. Failure to understand how
controls work could cause an accident or
prevent you from avoiding an accident.
@
CAUTION:@ Make sure that the stern drain plugs are
securely tightened before launching the
watercraft.
@
EJU01888
Engine break-in
The engine break-in period is essential to
allow the various components of the engine
to wear and polish themselves to the correct
operating clearances. This ensures proper
performance and promotes longer compo-
nent life.
CAUTION:@ For the first tankful of operation, pre-
mix a 50:1 mixture of fuel and oil (in
addition to the oil in the oil tank).
After break-in, use straight gasoline
for normal operation.
@
1. Launch the watercraft and start the
engine. (See page 3-16 for engine start-
ing procedures.)
2. Run the engine at the lowest possible
speed for 5 minutes.
UGU572.book Page 14 Wednesday, August 28, 2002 1:31 PM
Page 73 of 134
3-16
E
EJU01247
Launching the watercraft
Make sure that there are no obstructions
behind you.
After the watercraft is in the water, start
the engine. Shift into reverse and move the
watercraft back slowly. If there are waves,
someone should make sure that the water-
craft is not pushed into the trailer before
backing away.
EJU01887
Starting the engine
WARNING@ Never start the engine or let it run for any
length of time in an enclosed area.
Exhaust fumes contain carbon monox-
ide, a colorless, odorless gas that may
cause loss of consciousness and death
within a short time. Always operate the
watercraft in an open area.
@
1. Launch the watercraft in water free from
weeds and debris and at least 60 cm
(2 ft) deep.
WARNING@ Never operate in water that is less than
60 cm (2 ft) deep, otherwise you increase
your chance of hitting a submerged
object, which could result in injury.
@
CAUTION:@ Never operate in water that is less than
60 cm (2 ft) deep, otherwise pebbles or
sand could be sucked into the jet intake,
causing impeller damage or engine over-
heating.
@
UGU572.book Page 16 Wednesday, August 28, 2002 1:31 PM
Page 74 of 134
3-17
E
2. Turn the fuel cock knob to the “ON” posi-
tion.
NOTE:@ Before starting the watercraft, after it has
been sitting, remove the fuel tank filler cap
to release any built-up pressure in the tank
due to fuel expansion.
@
3. Attach the clip 1 to the engine shut-off
switch 2. Also, attach the engine shut-
off cord 3 to your left wrist.
WARNING@ Check that the engine shut-off cord is not
frayed or broken, and keep it free from
the handlebars so 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, allowing 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.
@
4. Pull and hold the choke knob all the way
out to start a cold engine.
NOTE:@ The choke should not be used when the
engine is warm.
@
UGU572.book Page 17 Wednesday, August 28, 2002 1:31 PM
Page 75 of 134
3-18
E
5. If the “LOCK” mode was chosen previ-
ously, choose the “START” mode before
starting the engine. (See page 2-20 for
selecting “PA D L O C” mode.)
NOTE:@ If the initial setting of the PADLOC has not
been done, the “START” mode is auto-
matically selected.
If you have previously chosen “LOCK”
mode, the engine will not start unless the
correct code is entered. This selects the
“START” mode.
@
6. While lightly squeezing the throttle lever,
push the start switch (green button).
WARNING@ On this watercraft, the engine is con-
nected directly to the jet pump. Starting
the engine immediately generates some
thrust. Apply only enough throttle to
keep the engine running.
@
7. Release the start switch as soon as the
engine starts to run.
CAUTION:@ Never push the start switch while the
engine 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 may be damaged. If the engine
does not start in 5 seconds, release
the start switch, wait 15 seconds, and
try again.
@
8. After the engine has warmed up, push
the choke knob in to its original position.
NOTE:@ If the choke knob is left pulled out, the
engine will stall.
@
UGU572.book Page 18 Wednesday, August 28, 2002 1:31 PM
Page 76 of 134
3-19
E
EJU01066
Stopping the engine
To stop the engine, release the throttle
lever, and then push the engine stop switch
(red button).
WARNING@ You need throttle to steer. Shutting off
the engine can cause you to hit an obsta-
cle you are attempting to avoid. A colli-
sion could result in severe injury or
death.
@
EJU01249
Leaving the watercraft
If leaving the watercraft, choose the
“LOCK” mode on the multifunction meter by
setting PADLOC, and remove the engine
shut-off cord to reduce the chance of acci-
dental starting or unauthorized use by chil-
dren or others.
To set the mode, see PADLOC under Mul-
tifunction meter.
UGU572.book Page 19 Wednesday, August 28, 2002 1:31 PM
