2018 YAMAHA SUPERJET stop start

Table of contents
General and important labels ........... 1
Identification numbers .................... 1
Primary Identification (PRI-ID)
number............................................ 1
Craft Identification Number (CIN) ....... 1
Engine serial number.......................... 1
Manufactured date label .................... 2
Important labels .............................. 3
Warning labels.................................... 4
Other labels ........................................ 7
Safety information ............................. 8
Limitations on who may operate
the watercraft ............................... 8
Cruising limitations .......................... 9
Operation requirements ................ 10
Recommended equipment ........... 12
Hazard information........................ 13
Watercraft characteristics ............. 13
Safe boating rules ......................... 14
Enjoy your watercraft
responsibly ................................. 15
Description....................................... 16
Watercraft glossary ....................... 16
Location of main components ...... 17
Control function operation ............. 19
Watercraft control functions ......... 19
Engine stop switch .......................... 19
Engine shut-off switch .................... 19
Start switch ..................................... 19
Throttle lever .................................... 20
Steering system ............................... 20
Steering pole .................................... 20
Fuel cock knob................................. 21
Choke knob ..................................... 21
Cooling water pilot outlet ................. 21
Water separator................................ 22
Engine overheat warning system ..... 22
Equipment operation ...................... 23
Equipment..................................... 23
Hood................................................. 23
Bow rope hole .................................. 24
Stern rope hole ................................. 24
Storage pouch .................................. 24
Fire extinguisher container ............... 25
Operation and handling
requirements ................................... 27
Fuel and engine oil
requirements .............................. 27
Fuel................................................... 27
2-stroke engine oil ............................ 28
Mixing fuel and oil ............................ 28
Filling the fuel tank ........................... 28
Draining the bilge water ................ 29
Draining the bilge water on water .... 29
Transporting.................................. 30
First-time operation ........................ 32
Engine break-in............................. 32
Pre-operation checks ..................... 33
Pre-operation checklist .................... 33
Pre-operation check points .......... 35
Pre-launch checks ........................... 35
Post-launch checks.......................... 39
Operation ......................................... 40
Operating your watercraft ............. 40
Getting to know your watercraft....... 40
Learning to operate your
watercraft ...................................... 40
Operating positions .......................... 40
Launching the watercraft ................. 41
Starting the engine on water ............ 41
Stopping the engine ......................... 43
Leaving the watercraft ...................... 43
Operating the watercraft .................. 43
Turning the watercraft ...................... 43
Stopping the watercraft.................... 45
Starting off........................................ 45
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Safety information
11
in certain kinds of accidents and that it
could injure you in others.
A helmet is designed to provide some head
protection. Although helmets cannot pro-
tect against all foreseeable impacts, a hel-
met might reduce your injuries in a collision
with a boat or other obstacle.
A helmet may have potential safety haz-
ards, as well. Falling into the water could
risk the chance of the helmet catching wa-
ter, commonly known as “bucketing”, and
the resulting strain on your neck could cau-
se choking, severe and permanent neck in-
juries, or death. A helmet could also
increase the risk of an accident if it reduces
your vision or hearing, or if it distracts you
or increases your fatigue.
How should you decide if a helmet’s poten-
tial safety benefits outweigh its potential
risks for you? Consider your particular rid-
ing conditions. Consider factors such as
your riding environment and your riding
style and ability. Also consider the likeli-
hood of traffic congestion, and the water
surface conditions.
If you decide to wear a helmet based upon
your riding circumstances, choose one
carefully. Look for a helmet designed for
personal watercraft use, if possible. If you
will be engaging in closed-course competi-
tion, follow the helmet requirements of the
sanctioning organization.
Never operate the watercraft after consum-
ing alcohol or taking other drugs.
For reasons of safety and proper care of
the watercraft, always perform the pre-op-
eration checks listed on page 33 before op-
erating the watercraft.
The operator should always keep both feet
or knees on the riding tray when the water-
craft is in motion. Lifting your feet increasesthe chances of losing your balance or hit-
ting objects outside the watercraft with
your feet.
Always consult your doctor on whether it is
safe for you to operate this watercraft if you
are pregnant or in poor health.
Do not attempt to modify this watercraft.
Modifications to your watercraft may re-
duce safety and reliability, and render the
watercraft unsafe or illegal for use.
Attach the engine shut-off cord (lanyard) to
y o u r l ef t w r is t an d k ee p i t fr e e f r o m t h e h an -
dlebars so that the engine stops if you, the
operator, fall off. After riding, remove the
engine shut-off cord (lanyard) from the wa-
tercraft to avoid accidental starting or un-
authorized use by children or others.
Scan carefully for swimmers, and stay
away from swimming areas. Swimmers are
hard to see and you could accidentally hit
someone in the water.
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Description
18
1Fire extinguisher container
2Fuel cock knob
3Choke knob
4Clip
5Start switch
6Throttle lever
7Engine shut-off cord (lanyard)
8Engine stop switch
9Engine shut-off switch
10Fuel tank
11Battery
12Silencer
13Spark plug/Spark plug cap
14Water separator
15Muffler
16Fuel filter
17Flushing hose connector (page 50)
18Electrical box
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Control function operation
19
EJU31026
Watercraft control functionsEJU31153Engine stop switch “ ”
The engine stop switch (red button) stops the
engine when the switch is pushed.
EJU31164Engine 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 pre-vent accidental starting or unauthorized op-
eration by children or others.
EJU41051Start switch “ ”
NOTICE
ECJ01361
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
1Engine stop switch
1Engine shut-off switch
2Clip
3Engine shut-off cord (lanyard)
1
STOP
312
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Control function operation
21
EJU31124Fuel cock knob
The fuel supply method can be switched by
operating the fuel cock knob.
Select the fuel cock knob position from the
following 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 offuel while operating the watercraft. When this
occurs, refuel as soon as possible and be
sure to turn the fuel cock knob back to “ON”.
EJU31203Choke 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.
EJU31224Cooling water pilot outlet
When the engine is running, some of the
cooling water that is circulated in the engine
is discharged from the cooling water pilot
outlet.
There is a cooling water pilot outlet on the
port (left) side of the watercraft. To check for
1Fuel cock knob
1Choke knob
1Cooling water pilot outlet
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Control function operation
22
proper operation of the cooling system, make
sure that water is being discharged from the
cooling water pilot outlet. If water is not being
discharged 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 start-
ed.
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.
EJU40323Water 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 thewatercraft, be sure to wipe it up with a
dry cloth.
(3) Securely tighten the drain screw until it
stops.
EJU31665Engine 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.
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 wa-
ter pilot outlet while the engine is running. If
there is no discharge of water, stop the en-
gine, and then check the jet intake for clog-
ging. (See page 66 for information on the jet
intake.) NOTICE: If you cannot locate and
correct the cause of the overheating, con-
sult a Yamaha dealer. Continuing to oper-
ate at higher speeds could result in severe
engine damage.
[ECJ00042]
1Water separator
2Drain screw
2
1
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Operation and handling requirements
29
(8) Securely install the fuel filler cap by tight-
ening it until it stops.
(9) Securely install the hood in its original
position.EJU40022
Draining the bilge water
NOTICE
ECJ01302
Do not run the engine at full throttle when
bilge water remains in the engine com-
partment. The bilge water can splash into
the engine, which can result in severe
damage.
EJU40922Draining the bilge water on water
A small quantity of bilge water will remain in
the engine compartment even after the bilge
water is drained on water. To completely re-
move the bilge water, remove the watercraft
from the water and wipe up any remaining
moisture in the engine compartment with a
dry cloth.
Jet vacuum bilge draining system
While the watercraft is operating, bilge water
in the engine compartment is drawn in by the
vacuum that is generated in the jet pump and
discharged from the watercraft through the
jet thrust nozzle.
To drain the bilge water on water:
Operate the watercraft as straight as possible
and above planing speed for at least 2 minu-
tes. NOTICE: Do not run the engine at full
throttle for at least 1 minute after the en-
gine has been restarted. Bilge water in the
engine compartment can splash into the
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Pre-operation checks
33
EJU31982
WARNING
EWJ00412
Failure to inspect or maintain the watercraft properly increases the possibility of an ac-
cident or damage to the watercraft. Do not operate the watercraft if you find any prob-
lem. If a problem cannot be corrected by the procedures provided in this manual, have
the watercraft inspected by a Yamaha dealer.
EJU41234Pre-operation checklist
Before using this watercraft, be sure to perform the checks in the following checklist.
ITEM ROUTINE PAGE
PRE-LAUNCH CHECKS
Engine compartmentVentilate the engine compartment.
Check inside the engine compartment for damage.35
Fuel systemCheck the fuel system for leakage.
Check the fuel level in the fuel tank.35
Water separatorCheck the water separator for water. 36
Engine unitCheck the exterior of the engine unit for damage. 36
Bilge waterCheck the engine compartment for bilge water. 36
BatteryCheck the battery connections and electrolyte level. 36
Steering systemCheck the steering system for proper operation. 36
Throttle leverCheck the throttle lever for proper operation.
Check the throttle lever free play.37
Engine shut-off cord (lan-
yard)Check the engine shut-off cord (lanyard) for dam-
age.38
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.38
Storage pouchCheck the storage pouch for damage and water.
Check that the storage pouch is securely installed.38
Fire extinguisher containerCheck the fire extinguisher container for damage. 39
Fire extinguisherCheck the condition of the fire extinguisher. 39
Safety equipmentCheck that safety equipment meeting the applica-
ble regulations is on board.39
Hull and deckCheck the hull and deck for damage. 39
Jet intakeCheck the jet intake for damage and clogging. 39
HoodCheck that the hood is securely closed. 39
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