2013 YAMAHA SUPERJET engine

Description
18
1Fire extinguisher container
2 Fuel cock knob
3 Choke knob
4 Clip
5 Start switch
6 Throttle lever
7 Engine shut-off cord (lanyard)
8 Engine stop switch
9 Engine shut-off switch
10 Fuel tank
11 Battery
12 Silencer
13 Spark plug/Spark plug cap
14 Water separator
15 Muffler
16 Fuel filter
17 Flushing hose connector
18 Electrical box
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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
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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
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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
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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
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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]
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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
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Operation and handling requirements
28
EJU31792
Fuel and engine oil requirements
EJU31833Fuel
WARNING
EWJ00282
●Gasoline and gasoline vapors are ex-
tremely flammable. To avoid fires and
explosions and to reduce the risk of in-
jury when refueling, follow these in-
structions.
●Gasoline is poisonous and can cause in-
jury or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline, inhale a
lot of gasoline vapor, or get some gaso-
line in your eyes, see your doctor imme-
diately. If gasoline spills on your skin,
wash with soap and water. If gasoline
spills on your clothing, change your
clothes.
NOTICE
ECJ00321
●Do not use leaded gasoline. Leaded gas-
oline can seriously damage the engine.
●Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance and engine
damage. Use only fresh gasoline that
has been stored in clean containers.
Gasohol
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. E-85
is a fuel blend containing 85% ethanol and
therefore must not be used in this watercraft.
All ethanol blends containing more than 10%
ethanol can cause fuel system damage or en-
gine performance problems.
Yamaha does not recommend gasohol con- taining methanol because it can cause fuel
system damage and engine performance
problems.
EJU318722-stroke engine oil
If YAMALUBE 2-W engine oil is not available,
another 2-stroke engine oil with an NMMA-
certified TC-W3 rating may be used.
EJU31902Mixing fuel and oil
NOTICE
ECJ00331
Make sure that the gasoline and oil are
thoroughly mixed in the correct ratio, oth-
erwise severe engine damage could re-
sult.
To mix gasoline and engine oil:
(1) Pour 2-stroke engine oil into a clean con- tainer, and then add gasoline.
Recommended fuel: Regular unleaded gasoline with a
minimum octane rating of
86
(Pump octane number) = (R + M)/2
90 (Research octane number)
Recommended engine oil:YAMALUBE 2-W or TC-W3 outboard
motor oil or equivalent
Fuel-to-oil ratios (gasoline to oil) Break-in period (first two tankfuls): 25:1
After break-in: 50 :1
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