2010 YAMAHA SUPERJET stop start

Operation
40
wake, but the watercraft is moving through the
water rather than skimming on top of it.)
At very slow speeds, it may be necessary to
support your upper-body weight with your el-
bows resting on the gunwales, trailing your
legs in the water.
Standing
After you are comfortable handling the water-
craft from a kneeling position, try standing as
the watercraft gains speed. The watercraft will
become easier to balance as the speed in-
creases, because jet thrust provides stability
as well as directional control. When you are
moving slowly, or preparing to stop, you will
probably need to return to the kneeling posi-
tion to maintain your balance.
EJU32821Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles around you.If the watercraft is launched from a trailer,
someone should make sure that waves do not
push the watercraft into the trailer.
After the watercraft is in the water, turn it
around so that the bow faces the direction you
wish to go.
EJU32835Starting the engine on water
WARNING
EWJ01520
Do not apply throttle when others are at
the rear of the watercraft. Turn the engine
off or keep it at idle. Water and debris exit-
ing the jet thrust nozzle can cause severe
injury.
To start the engine:
(1) Move the watercraft to an area that is free
from weeds and debris, and has a water
depth of at least 60 cm (2 ft) from the bot-
tom of the watercraft. NOTICE: Never
run the engine in water that is less
than 60 cm (2 ft) deep from the bottom
of the watercraft, otherwise pebbles or
sand could be sucked into the jet in-
take, causing impeller damage and en-
gine overheating.
[ECJ00472]
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Operation
42
EJU32862Stopping the engine
Release the throttle lever, and then push the
engine stop switch (red button) to stop the en-
gine. WARNING! You need throttle to steer.
Shutting the engine off can cause you to
hit an obstacle you are attempting to
avoid. A collision could result in severe in-
jury or death.
[EWJ00601]
EJU32872
Leaving the watercraft
If leaving the watercraft, remove the clip from
the engine shut-off switch to prevent acciden-
tal starting or unauthorized operation by chil-
dren or others.
EJU41170Operating the watercraft
When the engine is running, the watercraft will
move forward even if the throttle lever is in thefully closed (idle) position and the engine is at
idling speed.
EJU33243Turning the watercraft
WARNING
EWJ00761

Do not release the throttle lever when
trying to steer away from objects—you
need throttle to steer. A collision could
result in severe injury or death.

When operating at higher speeds, make
gradual turns or slow down before turn-
ing. Sharp high-speed turns may cause
the watercraft to slide sideways or spin,
throwing the operator overboard, which
could cause an injury.
Steering control depends on the combination
of handlebar position and the amount of throt-
tle.
Water sucked in through the intake grate is
pressurized by the impeller in the jet pump. As
the pressurized water is expelled from the
pump through the jet thrust nozzle, it creates
thrust to move and steer the watercraft. The
higher the engine speed, the more thrust pro-
duced.
The amount of jet thrust, in addition to the po-
sition of the handlebars, determines how
sharply you turn.
UF2F72E0.book Page 42 Friday, May 22, 2009 5:11 PM

Operation
44
general, the higher the speed or the sharper
the turn, the more you lean.
EJU33272Stopping the watercraft
The watercraft is not equipped with a sepa-
rate braking system. It is stopped by water re-
sistance when the throttle lever is released.
From full speed, the watercraft comes to a
complete stop in approximately 90 m (300 ft)
after the throttle lever is released or the en-
gine is stopped, although this distance will
vary depending on many factors, including
gross weight, water surface conditions, and
wind direction. The watercraft slows down as
soon as the throttle lever is released, but will
coast for a distance before fully stopping. If
you are not sure you can stop in time beforehitting an obstacle, apply throttle and turn in
another direction.
WARNING
EWJ00722

Allow adequate stopping distance.

Take early action to avoid collisions. Re-
member, watercraft and other boats do
not have brakes.

Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft to give you
time to stop.

Do not shut the engine off when slowing
down in case you need engine power to
steer away from a boat or other obstacle
that comes into your path.
EJU33074Starting off
WARNING
EWJ00711
To avoid collisions:

Scan constantly for people, objects, and
other watercraft. Be alert for conditions
that limit your visibility or block your vi-
sion of others.

Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft.

Do not follow directly behind watercraft
or other boats. Do not go near others to
spray or splash them with water. Avoid
UF2F72E0.book Page 44 Friday, May 22, 2009 5:11 PM

Operation
48
craft” on page 67 or “Submerged water-
craft” on page 67.) NOTICE: Do not run
the engine at full throttle for at least 1
minute after the engine has been re-
started. Bilge water in the engine com-
partment can splash into the engine,
which can result in severe damage.
[ECJ00553]
EJU33302
Beaching the watercraft
To beach the watercraft:
(1) Make sure that there are no boats, swim-
mers, or obstacles near the beach.
(2) Release the throttle lever to reduce
speed about 90 m (300 ft) before you
reach the intended beaching area.
(3) Slowly approach the beach and stop the
engine just before reaching land.
WARNING! You need throttle to steer.
Shutting the engine off can cause you
to hit an obstacle you are attempting
to avoid. A collision could result in se-
vere injury or death.
[EWJ00601] NOTICE:
Never run the engine in water that is
less than 60 cm (2 ft) deep from the
bottom of the watercraft, otherwise
pebbles or sand could be sucked into
the jet intake, causing impeller dam-
age and engine overheating.
[ECJ00472]
(4) Get off the watercraft and pull it up on the
beach.
EJU37192Operating in weeded areas
Always avoid using your watercraft in areas
where weed growth is thick. If operating in
weeded areas is unavoidable, alternately
squeeze the throttle lever to the full throttle
position and relax your grip on the throttle le-
ver to vary the engine speed. Weeds tend to
become clogged more when operating at a
steady speed and at trolling speed. If weeds
may have clogged the intake area, clean thejet intake. (See page 65 for jet intake cleaning
procedures.)
EJU41060After removing the watercraft from the
water
NOTICE
ECJ01360
Do not run the engine for more than 15
seconds on land without supplying water,
otherwise the engine could overheat.
After operating and removing the watercraft
from the water, promptly discharge the re-
maining water from the cooling water passag-
es.
To discharge water from the cooling water
passages:
(1) Make sure that the area around the wa-
tercraft is clear, and then start the engine.
(2) Discharge the remaining water out of the
cooling water passages by alternately
squeezing and releasing the throttle lever
quickly for 10 to 15 seconds.
(3) Stop the engine.
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Maintenance
61
EJU34463Adjusting the carburetor
NOTICE
ECJ00172
If the carburetor settings are disturbed by
someone who does not have the neces-
sary technical knowledge, poor engine
performance and damage may result.
The carburetor is a vital part of the engine and
requires very sophisticated adjustments.
Most adjustments should be left to a Yamaha
dealer who has the professional knowledge
and experience to make them.
However, the operator may adjust the engine
idling speed as part of the usual maintenance
routine.
EJU34471Adjusting the engine idling speed
(1) Place the watercraft in the water.
(2) Start the engine and warm it up for 1 to 2
minutes.
(3) While using a diagnostic tachometer, turn
the throttle stop screw to adjust the en-
gine idling speed to specification. Turn
the throttle stop screw clockwise to in-
crease the engine idling speed or coun-
terclockwise to decrease the engine
idling speed.
1Throttle stop screw
Engine idling speed:
1300 ±50 r/min
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Index
2-stroke engine oil .................................... 26
A
After removing the watercraft from the
water ..................................................... 48
B
Battery care .............................................. 50
Battery checks.......................................... 34
Battery, jumping ....................................... 66
Beaching the watercraft ........................... 48
Bilge water check ..................................... 34
Bilge water, draining................................. 28
Bilge water, draining on water .................. 28
Boarding and starting in deep water ........ 46
Boarding and starting in shallow water .... 45
Bow rope hole .......................................... 23
C
Capsized watercraft ................................. 47
Carburetor, adjusting................................ 61
Choke cable, adjusting ............................. 60
Choke knob .............................................. 20
Cleaning ................................................... 53
Cleaning the watercraft ............................ 50
Cooling water pilot outlet .......................... 20
Cooling water pilot outlet check ............... 38
Craft Identification Number (CIN) ............... 1
Cruising limitations ..................................... 8
E
Emergency procedures ............................ 65
Engine break-in ........................................ 30
Engine compartment check...................... 33
Engine idling speed, adjusting ................. 61
Engine overheat warning system ............. 21
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 36
Engine shut-off switch .............................. 18
Engine stop switch ................................... 18
Engine unit check ..................................... 34
Enjoy your watercraft responsibly ............ 14
Equipment ................................................ 22
F
Fire extinguisher check ............................ 37
Fire extinguisher container ....................... 24
Fire extinguisher container checks........... 37
Flushing the cooling water passages ....... 49Fuel .......................................................... 26
Fuel and engine oil requirements ............. 26
Fuel cock knob ......................................... 19
Fuel filter, checking .................................. 59
Fuel level check ....................................... 33
Fuel system checks .................................. 33
Fuel tank, filling ........................................ 27
Fuse, replacing ......................................... 66
G
Getting to know your watercraft ............... 39
Glossary, watercraft ................................. 15
H
Hazard information ................................... 12
Hood ......................................................... 22
Hood check .............................................. 37
Hull and deck check ................................. 37
I
Identification numbers ................................ 1
J
Jet intake and impeller, cleaning .............. 65
Jet intake checks ...................................... 37
Jet thrust nozzle angle, adjusting ............. 56
Jumper cables, connecting ...................... 66
L
Labels, important ........................................ 2
Labels, other .............................................. 6
Labels, warning .......................................... 3
Launching the watercraft .......................... 40
Learning to operate your watercraft ......... 39
Leaving the watercraft .............................. 42
Limitations on who may operate the
watercraft ................................................ 7
Long-term storage .................................... 53
Lubrication................................................ 53
Lubrication points ..................................... 59
M
Main components, location of .................. 16
Maintenance ............................................. 55
Mixing fuel and oil .................................... 26
O
Operating in weeded areas ...................... 48
Operating positions .................................. 39
Operating the watercraft ........................... 42
Operating your watercraft ......................... 39
Operation requirements ............................. 9
UF2F72E0.book Page 1 Friday, May 22, 2009 5:11 PM

Index
P
Periodic maintenance chart...................... 58
Post-launch checks .................................. 37
Post-operation care .................................. 49
Pre-launch checks.................................... 33
Pre-operation check points ...................... 33
Pre-operation checklist............................. 31
Primary Identification (PRI-ID) number ...... 1
R
Recommended equipment ....................... 11
Rustproofing ............................................. 54
S
Safe boating rules .................................... 13
Safety equipment check ........................... 37
Spark plugs, checking .............................. 59
Start switch............................................... 18
Starting off ................................................ 44
Starting the engine on water .................... 40
Steering friction, adjusting ........................ 55
Steering pole ............................................ 19
Steering pole check.................................. 35
Steering system ....................................... 19
Steering system checks ........................... 34
Stern rope hole......................................... 23
Stopping the engine ................................. 42
Stopping the watercraft ............................ 44
Storage pouch .......................................... 23
Storage pouch checks.............................. 36
Submerged watercraft .............................. 67
Switch checks .......................................... 36
T
Throttle lever ............................................ 19
Throttle lever checks ................................ 35
Tool kit...................................................... 55
Towing the watercraft ............................... 67
Transporting ............................................. 28
Troubleshooting ....................................... 63
Troubleshooting chart .............................. 63
Turning the watercraft .............................. 42
W
Water separator ....................................... 21
Water separator check ............................. 34
Watercraft characteristics......................... 12
Watercraft control functions ..................... 18
UF2F72E0.book Page 2 Friday, May 22, 2009 5:11 PM