2013 YAMAHA SUPERJET Owners Manual

Control function operation
19
EJU31024
Watercraft control functions EJU31152Engine stop switch “ ”
The engine stop switch (red button) stops the
engine when the switch is pushed.
EJU31163Engine shut-off switch “ ”
The engine shut-off switch automatically
stops the engine when the clip, on the end of
the engine shut-off cord (lanyard), is removed
from the switch, such as if the operator falls off
the watercraft.
Insert the clip under the engine shut-off switch
before starting the engine.
When the engine is not running, remove the
clip from the engine shut-off switch to prevent accidental starting or unauthorized operation
by children or others.
EJU41050Start switch “ ”
NOTICE
ECJ01360
Do not run the engine for more than 15
seconds on land without supplying water,
otherwise the engine could overheat.
The start switch (green button) starts the en-
gine when the switch is pushed.
Release the start switch as soon as the en-
gine starts to run. If the engine does not start
in 5 seconds, release the start switch, wait 15
seconds, and then try again.
NOTICE: 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
1 Engine stop switch
1 Engine shut-off switch
2 Clip
3 Engine shut-off cord (lanyard)
1
STOP
31
2
UF2F75E0.book Page 19 Thursday, July 5, 2012 8:50 AM

Control function operation
20
will not start. Also, the starter motor could
be damaged.
[ECJ01040]
The engine will not start when the clip is re-
moved from the engine shut-off switch.
EJU31211Throttle lever
The throttle lever increases the engine speed
when the lever is squeezed.
The throttle lever returns automatically to its
fully closed (idle) position when released.
EJU35932Steering system
By turning the handlebars in the direction you
wish to travel, the angle of the jet thrust nozzleis 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, ex-
cept at trolling speed.
The angle of the jet thrust nozzle can be ad-
justed to suit operat
or preference. (See page
57 for information on adjusting the jet thrust
nozzle angle.)
EJU31272Steering pole
The steering pole can be moved up or down
to change the height of the handlebars.
1 Start switch
1 Throttle lever
START
1
1Handlebar
2 Jet thrust nozzle
UF2F75E0.book Page 20 Thursday, July 5, 2012 8:50 AM

Control function operation
21
EJU31123Fuel cock knob
The fuel supply method can be switched by
operating the fuel cock knob.
Select the fuel cock knob position from the fol-
lowing three positions according to the cir-
cumstances of use.
OFF:
With the fuel cock knob in this position, fuel
does not flow to the carburetors. Always turn
the fuel cock knob to this position when the
engine is not running.
ON:
With the fuel cock knob in this position, fuel
flows to the carburetors. Turn the fuel cock
knob to this position when starting the engine
and operating the watercraft.
RES:
With the fuel cock knob in this position, the
fuel reserve is made available. Turn the fuel
cock knob to this position if you run out of fuelwhile operating the watercraft. When this oc-
curs, refuel as soon as possible and be sure
to turn the fuel cock knob back to “ON”.
EJU31202Choke knob “ ”
The choke knob can be operated to supply a
richer air-fuel mixture that is required to start a
cold engine.
To use the choke:
Pull the choke knob out.
Push the choke knob in to stop using the
choke after the engine starts.
EJU31223Cooling water pilot outlet
When the engine is running, some of the cool-
ing water that is circulated in the engine is dis-
charged from the cooling water pilot outlet.
There is a cooling water pilot outlet on the port
(left) side of the watercraft. To check for prop-
er operation of the cooling system, make sure
1
Fuel cock knob
1Choke knob
1 Cooling water pilot outlet
UF2F75E0.book Page 21 Thursday, July 5, 2012 8:50 AM

Control function operation
22
that water is being discharged from the cool-
ing water pilot outlet. If water is not being dis-
charged from the outlet, stop the engine and
check the jet intake for clogging. (See page
66 for information on the jet intake.)
TIP:
●It will take about 20 seconds for the water to
reach the outlet after the engine is started.
●Water discharge may not be constant when
the engine is running at idling speed. If this
occurs, apply a little throttle to make sure
that water discharges properly.
EJU40322Water separator
The water separator prevents water from en-
tering the fuel tank by collecting any water that
has entered the fuel tank breather hose if the
watercraft was capsized.If water has collected in the water separator,
drain it by loosening the drain screw.
To drain water from the water separator:
(1) Place a drain pan or dry cloth under the
water separator.
(2) Gradually loosen the drain screw to drain the water. Catch the draining water in the
drain pan or soak it up with the dry cloth
so that it does not spill into the engine
compartment. If any water spills into the
watercraft, be sure to wipe it up with a dry
cloth.
(3) Securely tighten the drain screw until it stops.
EJU31664Engine overheat warning system
If the engine temperature rises significantly,
the engine overheat warning system will acti-
vate and the engine speed will be limited to
about 3400 r/min to help prevent damage.
1Water separator
1 Drain screw
1
UF2F75E0.book Page 22 Thursday, July 5, 2012 8:50 AM

Control function operation
23
If the engine overheat warning system is acti-
vated, immediately reduce the engine speed,
return to shore, and then make sure that wa-
ter is being discharged from the cooling water
pilot outlet while the engine is running. If there
is no discharge of water, stop the engine, and
then check the jet intake for clogging. (See
page 66 for information on the jet intake.)
NOTICE: If you cannot locate and correct
the cause of the overheating, consult a
Yamaha dealer. Continuing to operate at higher speeds could result in severe en-
gine damage.
[ECJ00041]
UF2F75E0.book Page 23 Thursday, July 5, 2012 8:50 AM

Equipment operation
24
EJU40333
Equipment EJU31056Hood
The hood is removable.
Remove the hood to access the engine com-
partment.
To remove the hood:
(1) Lift the steering pole and support it withthe lock pin. (2) Turn the latch knob to the “OPEN” posi-
tion, and then pull up on the hood latch to
unlatch the hood.
(3) Grasp the hood using the handgrips pro- vided at the front and rear of the hood. Lift
the hood up and to the rear to remove it.
1Steering pole
1 Lock pin
1Hood latch
2 Hood latch knob
1 Handgrip
LOC KOPEN
1
2
UF2F75E0.book Page 24 Thursday, July 5, 2012 8:50 AM

Equipment operation
25
To install the hood:
(1) Position the hood on the deck so that thetwo projections at the front of the hood fit
under the two stays on the deck.
(2) Push down on the hood latch, and then turn the knob to the “LOCK” position to
securely lock the hood in place.
(3) While holding the steering pole, move the lock pin to the stowed position, and then
lower the steering pole.
EJU36002Bow rope hole
The bow rope hole is used to attach a rope to
the watercraft when transporting, mooring, or towing it in an emergency. (See page 68 for
information on towing the watercraft.)
EJU36011Stern rope hole
The stern rope hole is used to attach a rope to
the watercraft when mooring it.
EJU31675Storage pouch
The storage pouch is located on the bottom of
the hood.
Use the storage pouch to store the own-
er’s/operator’s manual, tool kit, and other
small items. The storage pouch is not de-
signed to be waterproof. If you carry objects
that must be kept dry, put them in a water-
proof bag.
To remove the storage pouch:
(1) Remove the hood. (See page 24 for hood
removal and installation procedures.)
LOCKOPEN
1 Bow rope hole
1 Stern rope hole
UF2F75E0.book Page 25 Thursday, July 5, 2012 8:50 AM

Equipment operation
26
(2) Unfasten the bands, and then remove thestorage pouch.
To install the storage pouch:
(1) Bend the owner’s/operator’s manual slightly to insert it into the storage pouch,
and then add the tool kit and any other
small items. Fold the pouch, and then
wrap the strap around it.
(2) Install the storage pouch on the hood and secure it with the bands.
(3) Securely install the hood in its original po- sition.
EJU41003Fire extinguisher container
The fire extinguisher container is located on
the hood. To open the fire extinguisher container:
(1) Lift the steering pole and support it with
the lock pin.
(2) Grasp the tab, pull the band to the rear, and then pull it up.
(3) Lift the fire extinguisher container about 30 degrees from the storage position.
NOTICE: Do not force the fire extin-
guisher container up more than 30 de-
grees from the storage position,
otherwise the container and hood
could be damaged.
[ECJ00401]
1 Storage pouch
2 Band
1 Strap
1Steering pole
2 Lock pin
1 Fire extinguisher container
2 Ta b
UF2F75E0.book Page 26 Thursday, July 5, 2012 8:50 AM