2008 YAMAHA SUPERJET engine oil

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
Important labels .............................. 2
Warning labels ................................... 3
Other labels ....................................... 6
Safety information ............................. 7
Limitations on who may operate
the watercraft .............................. 7
Cruising limitations ......................... 8
Operation requirements ................. 9
Recommended equipment ........... 11
Hazard information ....................... 12
Watercraft characteristics ............. 12
Safe boating rules ........................ 13
Enjoy your watercraft
responsibly ................................ 14
Features and functions ................... 15
Location of main components ...... 15
Operation of controls and
other functions ........................... 17
Hood ................................................ 17
Fuel tank filler cap ........................... 18
Fuel cock knob ................................ 18
Engine stop switch .......................... 19
Engine shut-off switch ..................... 19
Start switch ...................................... 20
Choke knob ..................................... 20
Throttle lever ................................... 20
Cooling water pilot outlet ................. 20
Steering system ............................... 21
Steering pole ................................... 22
Bow rope hole ................................. 22
Stern rope hole ................................ 22
Engine overheat warning system .... 22
Storage pouch ................................. 23
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 ..................... 35
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 ................... 42
Beaching the watercraft ................... 43
Rough water operation .................... 43
Post-operation care ...................... 43
Transporting ................................. 44
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 ................ 53
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Operation
25
EJU31790
Fuel and oil EJU31831Gasoline
WARNING
EWJ00290
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
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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 17 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 L (4.8 US gal) (4.0 Imp.gal)
Reserve:
5.5 L (1.5 US gal) (1.2 Imp.gal)
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Operation
33
EJU32730
Operation
WARNING
EWJ00510
Before operating your watercraft, become
familiar with all of the controls. Consult a
Yamaha dealer about any control or func-
tion that you do not fully understand. Fail-
ure to understand how the controls work
could cause an accident or prevent you
from avoiding an accident.
EJU32751Engine break-in
The engine break-in period is essential to al-
low the various components of the engine to
wear and polish themselves to the correct op-
erating clearances. This ensures proper per-
formance and promotes longer component
life.
CAUTION:
ECJ00421

For the first 2 tankfuls of fuel, premix the
fuel in a fuel-to-oil ratio of 25:1.

After break-in, premix the fuel in a fuel-
to-oil ratio of 50:1 for normal operation.
(1) Launch the watercraft, start the engine,
and then board the watercraft. (See page
33 for engine starting procedures.)
(2) Run the engine at the lowest possible
speed for 5 minutes.
(3) Gradually apply throttle to 3/4 or less.
(4) Operate the watercraft at 3/4 throttle or
less for the first tankful of fuel.
(5) Fill the fuel tank once more with fuel in a
fuel-to-oil ratio of 25:1, and then proceed
with normal operation.
CAUTION:
ECJ00430
Failure to follow the engine break-in pro-
cedure could result in reduced engine life
or even severe engine damage.
EJU32820Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles around you.
After the watercraft is in the water, turn it
around so that the bow faces the direction you
wish to go. Start the engine, and then slowly
move away from the launching area. If there
are waves, someone should make sure that
the watercraft is not pushed into the trailer af-
ter launching the watercraft.
EJU32831Starting the engine
WARNING
EWJ00560
Never start the engine or let it run for any
length of time in an enclosed area. Ex-
haust fumes contain carbon monoxide, a
colorless, odorless gas that may cause
loss of consciousness and death within a
short time. Always operate the watercraft
in an open area.
NOTE:
If the watercraft has been sitting for a while,
remove the fuel tank filler cap to release any
built-up pressure in the fuel tank due to fuel
expansion, and then install the filler cap be-
fore starting the engine.
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Specifications
62
EJU34542
Specifications
Watercraft capacity:
Maximum people on board:
1 person
Dimensions:
Length:
2240 mm (88.2 in)
Width:
680 mm (26.8 in)
Height:
660 mm (26.0 in)
Dry weight:
139 kg (306 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
48.50 kW@6250 r/min
Maximum fuel consumption:
29.0 L/h (7.7 US gal/h) (6.4 Imp.gal/h)
Cruising range at full throttle:
0.62 hour
Trolling speed:
1300 ±50 r/min
Engine:
Engine type:
2-stroke
Number of cylinders:
2
Engine displacement:
701 cm³
Bore & stroke:
81.0 × 68.0 mm (3.19 × 2.68 in)
Compression ratio:
7.2 : 1
Lubrication system:
Pre-mixed fuel and oil
Cooling system:
Water
Starting system:
Electric
Ignition system:
C.D.I.
Spark plug:
BR7HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Battery capacity:
12 V, 19.0 AhCharging system:
Flywheel magneto
Drive unit:
Propulsion system:
Jet pump
Jet pump type:
Axial flow, single stage
Impeller rotation:
Counterclockwise
Jet thrust nozzle angle:
P1: 14.4+14.4°
P2: 17.3+17.3°
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Minimum octane rating (PON):
86
Minimum octane rating (RON):
90
Recommended engine oil:
YAMALUBE 2-W or TC-W3 outboard motor
oil or equivalent
Fuel mixing ratio (fuel to oil):
50 :1
Fuel tank total capacity:
18 L (4.8 US gal) (4.0 Imp.gal)
Fuel tank reserve capacity:
5.5 L (1.5 US gal) (1.2 Imp.gal)
UF2F70E0.book Page 62 Tuesday, April 17, 2007 9:56 AM

Trouble recovery
64
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible26
Stale or contaminat-
edHave serviced by
Yamaha dealer53
Too much oil in fuel
mixing ratioCorrect fuel-to-oil ra-
tio to 50:125
Choke Knob is left pulled Push fully in 20
Fuel filter Clogged or water
pooledHave serviced by
Yamaha dealer53
Fuel tank Water or dirt present Have serviced by
Yamaha dealer53
Spark plug Fouled or defective Replace 57
Incorrect heat range Replace 57
Gap incorrect Adjust 57
Spark plug
capLoose Connect properly 57
Cracked, torn or dam-
agedReplace
—
Electrical wir-
ingLoose electrical con-
nectionsTighten or connect
properly—
Carburetor Incorrect idle adjust-
mentAdjust idle
61
Clogged Have serviced by
Yamaha dealer61
Watercraft slow or
loses powerCavitation Jet intake clogged Clean 65
Impeller damaged or
wornHave serviced by
Yamaha dealer65
Engine over-
heatedJet intake clogged Clean
65
Fuel filter Clogged Have serviced by
Yamaha dealer53
Spark plug Fouled or defective Replace 57
Incorrect heat range Replace 57
Gap incorrect Adjust 57
Spark plug
capsLoose Connect properly
57
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer53 TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2F70E0.book Page 64 Tuesday, April 17, 2007 9:56 AM

Trouble recovery
66
CAUTION:
ECJ00660

Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches.

Always turn the watercraft over onto its
port (left) side.

When turning the watercraft on its side,
support the bow so that the handlebars
are not bent or damaged.
(2) Remove any weeds or debris from
around the drive shaft, impeller, jet pump
housing, and jet thrust nozzle.
If debris is difficult to remove, consult a
Yamaha dealer.
CAUTION:
ECJ00670
Always avoid operating your watercraft in
areas where weed growth is thick. If travel-
ing in weeded areas is unavoidable, oper-
ate the engine alternately at partial throttle
and full throttle. Weeds tend to accumu-
late more at a steady speed and at trolling
speed. If weeds clog the jet intake or im-
peller area and cause cavitation, follow the
cleaning procedure above.
EJU34640Jumping the battery
If the watercraft battery has run down, the en-
gine can be started using a 12-volt booster
battery and jumper cables.
WARNING
EWJ00790
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes, or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water or
milk. Follow with milk of magnesia, beatenegg, or vegetable oil. Call a physician im-
mediately.
Eyes: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flames, cigarettes, etc., well away.
If using or charging the battery in an en-
closed space, make sure that it is well ven-
tilated. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.
EJU34651Connecting the jumper cables
(1) Connect the positive (+) jumper cable to
the positive (+) battery terminals of both
batteries.
(2) Connect one end of the negative (–)
jumper cable to the negative (–) battery
terminal of the booster battery.
(3) Connect the other end of the negative (–)
jumper cable to an unpainted bolt on the
cylinder head.
CAUTION:
ECJ00680
Do not connect the end of the negative (–)
jumper cable to the negative (–) battery
terminal of the watercraft battery! Make
sure that all connections are secure and
correct before attempting to start the en-
1Positive (+) jumper cable
2Booster battery
3Negative (–) jumper cable
UF2F70E0.book Page 66 Tuesday, April 17, 2007 9:56 AM

Index
2-stroke engine oil .................................... 25
B
Battery ................................................ 29, 48
Battery, checking...................................... 60
Battery, jumping ....................................... 66
Beaching the watercraft ........................... 43
Bilge ......................................................... 29
Boarding and starting in deep water ........ 39
Boarding and starting in shallow water .... 38
Bow rope hole .......................................... 22
C
Capsized watercraft ................................. 40
Carburetor, adjusting................................ 61
Choke cable, adjusting ............................. 59
Choke knob .............................................. 20
Cleaning the watercraft ............................ 48
Cooling water pilot outlet .................... 20, 32
Craft Identification Number (CIN) ............... 1
Cruising limitations ..................................... 8
E
Emergency procedures ............................ 65
Engine break-in ........................................ 33
Engine compartment ................................ 28
Engine overheat warning system ............. 22
Engine serial number ................................. 1
Engine shut-off cord ................................. 32
Engine shut-off switch .............................. 19
Engine stop switch ................................... 19
Enjoy your watercraft responsibly ............ 14
F
Filling the fuel tank ................................... 26
Fire extinguisher....................................... 29
Flushing the cooling system ..................... 46
Fuel and oil............................................... 25
Fuel cock knob ......................................... 18
Fuel filter .................................................. 53
Fuel system ........................................ 28, 47
Fuel system, checking.............................. 53
Fuel tank .................................................. 53
Fuel tank filler cap .................................... 18
Fuse, replacing......................................... 67
G
Gasohol .................................................... 25
Gasoline ................................................... 25Getting to know your watercraft ............... 36
H
Hazard information ................................... 12
Hood ......................................................... 17
Hull and deck ........................................... 28
I
Identification numbers ................................ 1
Important labels .......................................... 2
J
Jet intake .................................................. 31
Jet intake and impeller, cleaning .............. 65
Jet thrust nozzle angle, adjusting ............. 55
Jet thrust nozzle angle, checking ............. 53
Jumper cables, connecting ...................... 66
K
Kneeling ................................................... 37
L
Labels, other .............................................. 6
Labels, warning .......................................... 3
Launching the watercraft .......................... 33
Learning to operate your watercraft ......... 36
Leaving the watercraft .............................. 35
Limitations on who may operate
the watercraft .......................................... 7
Lubrication................................................ 47
Lubrication points ..................................... 58
M
Main components, location of .................. 15
Maintenance and adjustments ................. 49
Mixing fuel and oil .................................... 25
O
Operating positions .................................. 37
Operating your watercraft ......................... 36
Operation ................................................. 33
Operation of controls and
other functions ...................................... 17
Operation requirements ............................. 9
Owner’s/operator’s manual and tool kit .... 49
P
Periodic maintenance chart ...................... 51
Post-operation care .................................. 43
Pre-operation check list ............................ 27
Pre-operation check points ...................... 28
Pre-operation checks ............................... 27
Primary Identification (PRI-ID) number ...... 1
UF2F70E0.book Page 1 Tuesday, April 17, 2007 9:56 AM