fuel YAMAHA SUPERJET 2007 Owners Manual

Table of contents
General and important labels ........... 1
Identification numbers .................... 1
Primary Identification (PRI-ID)
number ........................................... 1
Hull Identification Number (HIN) ........ 1
Engine serial number ........................ 1
Model information ........................... 2
Builder’s plate .................................... 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
Features and functions ................... 16
Location of main components ...... 16
Operation of controls and other
functions .................................... 18
Hood ................................................ 18
Fuel tank filler cap ........................... 19
Fuel cock knob ................................ 19
Engine stop switch .......................... 20
Engine shut-off switch ..................... 20
Start switch ...................................... 20
Choke knob ..................................... 20
Throttle lever ................................... 21
Cooling water pilot outlet ................. 21
Steering system ............................... 22
Steering pole ................................... 22
Bow rope hole ................................. 22
Stern rope hole ................................ 23
Engine overheat warning system .... 23
Storage pouch ................................. 24
Operation ......................................... 25
Fuel and oil .................................. 25
Gasoline .......................................... 25
2-stroke engine oil ........................... 25
Mixing fuel and oil ............................ 25
Filling the fuel tank .......................... 26
Pre-operation checks ................... 27
Pre-operation check list ................... 27
Pre-operation check points .............. 28
Operation ..................................... 33
Engine break-in ............................... 33
Launching the watercraft ................. 33
Starting the engine .......................... 33
Stopping the engine ........................ 35
Leaving the watercraft ..................... 36
Operating your watercraft ............ 36
Getting to know your watercraft ....... 36
Learning to operate your
watercraft ..................................... 36
Operating positions ......................... 37
Starting the watercraft ..................... 38
Boarding and starting in deep
water ............................................ 39
Capsized watercraft ......................... 40
Turning the watercraft ..................... 41
Stopping the watercraft ................... 43
Beaching the watercraft ................... 43
Rough water operation .................... 43
Post-operation care ...................... 44
Transporting ................................. 45
Maintenance and care .................... 46
Storage ........................................ 46
Flushing the cooling system ............ 46
Lubrication ....................................... 47
Fuel system ..................................... 47
Battery ............................................. 48
Cleaning the watercraft ................... 48
Maintenance and adjustments ..... 49
Owner’s/operator’s manual and
tool kit ........................................... 49
Periodic maintenance chart ............. 51
Checking the fuel system ................ 52
UF1N75E0.book Page 1 Tuesday, May 16, 2006 9:53 AM

Safety information
13
EJU30850
Hazard information

When transporting or storing your water-
craft, always turn the fuel cock knob to
“OFF”, otherwise gasoline may overflow
from the carburetor.

Never start the engine or let it run for any
length of time in an enclosed area. Exhaust
fumes contain carbon monoxide, a color-
less, odorless gas that may cause loss of
consciousness and death within a short
time. Always operate the watercraft in an
open area.
EJU30880
Watercraft characteristics

Jet thrust turns the watercraft. Releasing
the throttle lever completely produces only
minimum thrust. If you are traveling at
speeds above trolling, you will have rapidly
decreasing ability to steer without throttle.
You may still have some turning ability im-
mediately after releasing the throttle lever,
but once the engine slows down, the water-
craft will no longer respond to handlebar in-
put until you apply throttle again or you
reach trolling speed.
Practice turning in an open area without ob-
stacles until you have a good feel for this
maneuver.

This watercraft is water-jet propelled. The
jet pump is directly connected to the engine.
This means that jet thrust will produce some
movement whenever the engine is running.
There is no “neutral” position.

Keep away from the intake grate while the
engine is on. Items such as long hair, loose
clothing, or PFD straps can become entan-
gled in moving parts, resulting in severe in-
jury or drowning.

Never insert any object into the jet thrust
nozzle while the engine is running. Severe
injury or death could result from coming in
UF1N75E0.book Page 13 Tuesday, May 16, 2006 9:53 AM

Safety information
15
EJU30990
Enjoy your watercraft
responsibly
You share the areas you enjoy when riding
your watercraft with others and with nature.
So your enjoyment includes a responsibility to
treat these other people, and the lands, wa-
ters, and wildlife with respect and courtesy.
Whenever and wherever you ride, think of
yourself as the guest of those around you. Re-
member, for example, that the sound of your
watercraft may be music to you, but it could be
just noise to others. And the exciting splash of
your wake can make waves others won’t en-
joy.
Avoid riding close to shoreline homes and wa-
terfowl nesting areas or other wildlife areas,
and keep a respectful distance from fisher-
men, other boats, swimmers, and populated
beaches. When travel in areas like these is
unavoidable, ride slowly and obey all laws.
Proper maintenance is necessary to ensure
that the exhaust emission and sound levels of
your watercraft will continue to be within regu-
lated limits. You have the responsibility to
make sure that the recommended mainte-
nance in this owner’s/operator’s manual is
carried out.
Remember, pollution can be harmful to the
environment. Do not refuel or add oil where a
spill could cause damage to nature. Remove
your watercraft from the water and move it
away from the shoreline before refueling. And
keep your surroundings pleasant for the peo-
ple and wildlife that share the waterways:
don’t litter!
When you ride responsibly, with respect and
courtesy for others, you help ensure that our
waterways stay open for the enjoyment of a
variety of recreational opportunities.
UF1N75E0.book Page 15 Tuesday, May 16, 2006 9:53 AM

Features and functions
16
EJU31010
Location of main components
1Bow rope hole
2Storage pouch
3Steering pole
4Handlebars
5Riding tray
6Stern rope hole
7Fuel tank filler cap
8Hood
9Steering pole cover
10Hood latch
11Jet thrust nozzle
12Cooling water pilot outlet
13Intake grate
14Jet intake
15Ride plate
16Drive shaft
UF1N75E0.book Page 16 Tuesday, May 16, 2006 9:53 AM

Features and functions
17
1Fire extinguisher container
2Fuel cock knob
3Choke knob
4Clip
5Start switch
6Throttle lever
7Engine shut-off switch
8Engine stop switch
9Engine shut-off cord (lanyard)
10Bow
11Fuel tank
12Battery
13Silencer
14Spark plugs/Spark plug caps
15Muffler
16Water separator
17Fuel filter
18Flushing hose connector
19Electrical box
UF1N75E0.book Page 17 Tuesday, May 16, 2006 9:53 AM

Features and functions
19
NOTE:
Make sure that the hood is properly secured
before operating the watercraft.
EJU31090Fuel tank filler cap
To remove the fuel tank filler cap, turn it coun-
terclockwise.
NOTE:
Make sure that the fuel tank filler cap is se-
curely closed before operating the watercraft.
EJU31120Fuel cock knob
The fuel cock supplies fuel from the fuel tank
to the carburetors.The fuel cock knob positions are explained as
follows and are shown in the illustration.
OFF:
With the fuel cock knob in this position, fuel
does not flow. 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:
This indicates reserve. With the fuel cock
knob in this position, the fuel reserve is made
available. Turn the fuel cock knob to this posi-
tion if you run out of fuel while operating the
watercraft. When this occurs, refuel as soon
as possible and be sure to turn the fuel cock
knob back to “ON”!
1Fuel tank filler cap
1Fuel cock knob
UF1N75E0.book Page 19 Tuesday, May 16, 2006 9:53 AM

Features and functions
20
EJU31150Engine stop switch
Push the engine stop switch (red button) to
stop the engine normally.
EJU31160Engine shut-off switch
Insert the clip, on the end of the engine shut-
off cord, under the engine shut-off switch
(black button). The engine will stop automati-
cally when the clip is removed from the
switch, such as if the operator falls off the wa-
tercraft.
WARNING
EWJ00010

Always attach the engine shut-off cord
to your left wrist and the clip to the en-
gine shut-off switch BEFORE starting
the engine.

To prevent accidental starting of the en-
gine or unauthorized use by children or
others, always remove the clip from the
engine shut-off switch when the engine
is not running.
EJU31170Start switch
Push the start switch (green button) to start
the engine.
NOTE:
The engine will not start when the clip is re-
moved from the engine shut-off switch.
EJU31200Choke knob
Starting a cold engine requires a richer air-fuel
mixture, which is supplied by the choke.
1Engine stop switch
1Engine shut-off cord
2Clip
3Engine shut-off switch
1Start switch
UF1N75E0.book Page 20 Tuesday, May 16, 2006 9:53 AM

Operation
25
EJU31790
Fuel and oil EJU31830Gasoline
WARNING
EWJ00440
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!

Do not smoke when refueling, and keep
away from sparks, flames, and other
sources of ignition.

Stop the engine before refueling.

Refuel in a well-ventilated area with the
watercraft in a horizontal position.

Do not stand or sit on the watercraft
while refueling in case of fire.

Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.

Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level just reaches the
bottom of the filler tube. Do not fill up the
filler tube because fuel expands as it
warms up and could overflow. If tempo-
rarily leaving the watercraft with a full
fuel tank, do not leave it in direct sun-
light. Leave it in a well-ventilated area
with the watercraft in a horizontal posi-
tion.

Tighten the fuel tank filler cap securely
after refueling.

If you should swallow some gasoline, in-
hale a lot of gasoline vapor, or get gaso-
line in your eyes, get immediate medical
attention.

If any gasoline spills on your skin or
clothing, immediately wash the affected
area with soap and water and change
your clothes.
CAUTION:
ECJ00310
Use only fresh gasoline that has been
stored in clean containers.
EJU31860Gasohol
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.
Gasohol containing methanol is not recom-
mended by Yamaha because it can cause
fuel system damage and engine performance
problems.
EJU318702-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.
EJU31900Mixing fuel and oil
CAUTION:
ECJ00330

Avoid using any mixture of gasoline and
oil other than those specified.

Make sure that the gasoline and oil are
thoroughly mixed in the correct ratio,
otherwise the following problems may
occur. Too little oil in the fuel-to-oil ratio
could result in major engine trouble,
such as seizure. Too much oil in the fuel-Recommended gasoline:
Regular unleaded gasoline with a mini-
mum 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
UF1N75E0.book Page 25 Tuesday, May 16, 2006 9:53 AM

Operation
26
to-oil ratio could result in fouled spark
plugs, smoky exhaust, and heavy car-
bon deposits.
Pour 2-stroke engine oil into a clean contain-
er, and then add gasoline. To mix them thor-
oughly, shake the container from side to side.
EJU31910Filling the fuel tank
CAUTION:
ECJ00290
Be careful when refueling. Avoid getting
water and other contaminants in the fuel
tank. Contaminated fuel can cause poor
running and engine damage.
(1) Lift the steering pole and support it with
the lock pin.
(2) Remove the hood. (See page 18 for hood
removal and installation procedures.)
(3) Remove the fuel tank filler cap, and then
slowly add the premixed fuel to the fueltank. Stop filling when the fuel level just
reaches the bottom of the filler tube.
(4) Install the fuel tank filler cap and the
hood.
NOTE:

The hood must be removed in order to view
the fuel level in the fuel tank while adding fu-
el.

Be careful not to spill fuel or overfill the fuel
tank.

Do not fill up the filler tube because fuel ex-
pands as it warms up and could overflow.
12-stroke engine oil
2Gasoline
Fuel-to-oil ratios (gasoline to oil)
Break-in period (first two tankfuls):
25 : 1
After break-in:
50 :1
Fuel tank capacity:
To t a l :
18.0 L (4.8 US gal) (4.0 Imp.gal)
Reserve:
5.5 L (1.5 US gal) (1.2 Imp.gal)
UF1N75E0.book Page 26 Tuesday, May 16, 2006 9:53 AM

Operation
27
EJU31980
Pre-operation checks EJU31990Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the accom-
panying text in this chapter for details on how to perform the checks.
WARNING
EWJ00410
If any item in the pre-operation check list is not working properly, have it inspected and
repaired before operating the watercraft, otherwise an accident could occur.
NOTE:
Pre-operation checks should be made each time the watercraft is used. These checks can be
completed in a short time. It is worth the time spent to ensure safety and reliability.
ITEM ROUTINE PAGE
BEFORE LAUNCH OR OPERATION
Engine compartmentRemove the hood to ventilate the engine compart-
ment. Check for fuel vapors and loose electrical con-
nections.28
BilgeCheck for water and fuel and drain if necessary. 29
Throttle leverCheck that the throttle lever springs back smoothly. 30
Steering systemCheck for proper operation. 30
FuelCheck the fuel level and replenish if necessary.
Check the hoses and tank for leakage.28
Water separatorCheck for water and drain if necessary. 28
BatteryCheck the electrolyte level and battery condition. 29
HoodCheck that the hood is securely closed. 18
Hull and deckCheck the hull and deck for cracks and other dam-
age.28
Jet intakeCheck for debris and remove if necessary. 31
Fire extinguisherCheck the condition and replace if necessary. 29
Engine shut-off cordCheck the condition and replace if frayed or broken. 31
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.32
AFTER LAUNCH
Cooling water pilot outletCheck that water is discharged while the engine is
running and the watercraft is in the water.32
UF1N75E0.book Page 27 Tuesday, May 16, 2006 9:53 AM