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EJU01798
Fuel and oil
This watercraft is equipped with a
4-stroke engine. Conventional 2-stroke
engine oil cannot be used.
The engine utilizes an electronic fuel
injection system to deliver the optimal air-
fuel mixture ratio required by the engine.
With optimal combustion conditions, this
system is able to increase startability and
improve fuel economy.
EJU19112
Gasoline
WARNING@ GASOLINE AND ITS VAPORS ARE
HIGHLY FLAMMABLE AND EXPLOSIVE!
Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.
Stop 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 reaches approx-
imately 50 mm (2 in) from the top of the
fuel tank. Fuel expands as it warms up
and could overflow if the fuel tank has
been overfilled. If temporarily leaving
the watercraft with a full fuel tank, do
not leave it in direct sunlight. Leave it
in a well-ventilated area with the water-
craft in a horizontal position.
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Tighten the filler cap securely after
refueling.
If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.
If any gasoline spills onto your skin,
immediately wash with soap and
water. Change clothing if gasoline
spills on it.
@
CAUTION:@ Use only fresh gasoline that has been
stored in clean containers.
@
EJU01832
Gasohol
There are two types of gasohol: gasohol
containing ethanol and that containing meth-
anol.
Gasohol containing ethanol can be used
if ethanol content does not exceed 10% and
the fuel meets minimum octane ratings.
Gasohol containing methanol is not rec-
ommended by Yamaha because it can
cause fuel system damage or engine perfor-
mance problems.Recommended gasoline:
Regular unleaded gasoline with
a minimum octane rating of
86 (Pump octane number) = (R+M)/2
90 (Research octane number)
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EJU01799
Engine oil
Use a combination of the recommended
SAE and API oil classifications shown in the
chart below.
CAUTION:@ Use only 4-stroke engine oil.
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EJU18002
Filling the fuel tank
CAUTION:@ Be careful when refueling. Avoid getting
water or other contaminants in the fuel
tank. Contaminated fuel can cause poor
running or engine damage.
@
1. Remove the rear and front seats. (See
pages 2-5 and 2-6 for seat removal and
installation procedures.)
2. Open the fuel tank filler cap, and slowly
add fuel to the fuel tank.
3. Stop filling when the fuel level reaches
approximately 50 mm (2 in) from the top
of the fuel tank as indicated a in the
illustration.
Fuel tank capacity:
70.0 L (18.5 US gal, 15.5 Imp gal)
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EJU01346
Pre-operation checks
EJU01347
Pre-operation check list
Before operating this watercraft, perform the checks in the following check list. See the
accompanying text in this chapter for details on how to perform the checks.
WARNING@ 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 thoroughly each time the watercraft is used. This pro-
cedure can be completed in a short time. It is worth the time spent to assure safety and reli-
ability.
@
ITEM ROUTINE PAGE
Engine compartment Remove all seats to ventilate the engine compartment.
Check for fuel vapors and loose electrical connections.3-6
Bilge Check for water and fuel and remove if necessary. 3-9
Stern drain plugs Check for proper installation. 3-10
Throttle lever Check that the throttle lever springs back smoothly. 3-12
Steering system Check for proper operation.
Check that the handlebars are securely locked.3-12
Shift lever and reverse gate Check for proper operation. 3-13
QSTS Check for proper operation. 3-14
Fuel and oil Check fuel and oil levels and add if necessary.
Check the hoses and tanks for leakage.3-6, 3-7
Water separator Check for water and drain if necessary. 3-8
Battery Check electrolyte level and battery condition. 3-10
Hood Check that the hood is properly secured. 2-7
Front and rear seats Check that the seats are properly secured. 2-5, 2-6
Hull and deck Check the hull and deck for cracks or other damage. 3-6
Jet unit Check for debris and remove if necessary. 3-15
Fire extinguisher Check condition and replace if necessary. 3-11
Engine shut-off cord Check condition and replace if frayed or broken. 3-15
Switches Check the start switch, engine stop switch, and engine
shut-off switch for proper operation.3-16
Cooling water pilot outlet Check that water is discharged while the engine is run-
ning and the watercraft is in the water.3-16
Multifunction meter Check for warning indications and proper operation. 3-16
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EJU01048
Pre-operation check points
EJU01878
Engine compartment
Ventilate the engine compar tment before
each use.
To ventilate the engine compartment
remove the rear and front seats. (See pages
2-5 and 2-6 for seat removal and installation
procedures.) Allow the engine compartment
to remain open for a few minutes to allow
any fuel vapors to escape. Also, check for
loose electrical connections.
WARNING@ Failure to ventilate the engine compart-
ment could result in fire or explosion. Do
not start the engine if there is a fuel leak
or a loose electrical connection.
EJU20570
Hull and deck
Check the hull and deck for cracks or
other damage. If any damage is found, have
a Yamaha dealer repair the watercraft.
EJU01802
Fuel level
Check the fuel system for leakage, cracks
or malfunctions before each use. (See page
4-11 for check points and correct proce-
dures.)
1. Remove the fuel tank filler cap to release
any pressure that might have built up in
the fuel tank.
2. Remove the rear and front seats. (See
pages 2-5 and 2-6 for seat removal and
installation procedures.)
3. Check the fuel level in the tank and
replenish if necessary. (See page 3-4 for
filling instructions.)
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EJU20831
Engine oil level
Check the engine oil level before each
use.
CAUTION:@ When checking the engine oil level on
water, be careful of other watercraft,
boats, swimmers, and obstacles. The
water current and wind can cause the
watercraft to move and lead to a colli-
sion.
When checking the engine oil level on
land, supply water to the cooling water
passages. (See page 4-1 for proce-
dures on supplying water.)
Make sure that the engine has enough
oil but do not overfill it. If there is too
little oil, the engine can be damaged. If
there is too much oil, the air filter can
become saturated with oil, perma-
nently damaging the filter and reduc-
ing engine performance. Follow the
checking procedure carefully.
Make sure that debris and water do not
enter the oil tank filler hole. Debris and
water in the engine oil can cause seri-
ous engine damage.
@
Checking the engine oil level:
1. Place the watercraft in a horizontal posi-
tion or launch the watercraft, and then
start the engine.
2. Run the engine at trolling speed for 6
minutes or more, and then stop the
engine.
NOTE:@ If the ambient temperature is 20 °C (68 °F)
or less, warm up the engine for an additional
5 minutes.
@
3. Remove the rear and front seats. (See
pages 2-5 and 2-6 for seat removal and
installation procedures.)
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4. Remove the oil tank filler cap 1, wipe
the dipstick clean, and then screw the
filler cap into the filler hole completely.
Remove the filler cap again and check
that the oil level is between the minimum
level mark 3 and maximum level
mark2 on the dipstick.
5. If the oil level is below the minimum level
mark, add enough oil so that the oil level
is between the minimum and maximum
level marks on the dipstick, and then
install the filler cap. If the engine oil level
is significantly above the maximum level
mark, the oil tank is overfilled. Have a
Yamaha dealer remove the excessive
amount of engine oil.
EJU01961
Water separator
Check the water separator 1 for water.
Normally the water separator is empty. The
water separator retains any water entering
through the fuel tank breather hose if the
watercraft is capsized.
If water remains in the water separator,
drain it by removing the drain screw 2.
Place a drain pan under the water separator
to catch the draining water or use a dry cloth
to soak up any water that could spill into the
watercraft. If any water spills into the water-
craft, be sure to wipe it up with a dry cloth.
Be sure to install the drain screw after drain-
ing the water separator.
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