Care and storage
87
ter flows out continually from the jet
thrust nozzle.
(8) Run the engine at idling speed for about 3 minutes watching the engine condition.
If the engine stops while flushing, turn
the water supply off immediately and
perform the procedure again from step 7.
NOTICE: Do not supply water to the
cooling water passages when the en-
gine is not running. The water could
flow back through the muffler into the
engine, causing severe engine dam-
age.
[ECJ00123]
(9) Turn the water supply off.
(10) Discharge the remaining water out of the cooling water passages by alternately
squeezing and releasing the throttle lever
quickly for 10 to 15 seconds.
(11) Stop the engine.
(12) Remove the garden hose adapter, and then securely install the flushing hose
connector cap by tightening it until it
stops.
(13) Securely close the stern storage com- partment.
(14) Securely install the removable watertight storage compartment and seats in their
original positions.
EJU33736Cleaning the watercraft
(1) Remove the seats. (See page 46 for seatremoval and installation procedures.) (2) Rinse the engine and engine compart-
ment with a small amount of water.
NOTICE: Do not use high-pressure
water when rinsing the engine or en-
gine compartment as severe engine
damage could result.
[ECJ00572]
(3) Drain the water from the engine com- partment. (See page 58 for information
on draining the bilge water.)
(4) Wipe the engine and engine compart- ment with a dry cloth.
(5) Wash down the hull, deck, and jet pump with fresh water.
(6) Wipe the hull, deck, and jet pump with a dry cloth.
(7) Wipe all vinyl and rubber components, such as the seats and engine compart-
ment seals, with a vinyl protectant.
(8) To minimize corrosion, spray metallic parts of the hull, deck, and engine with a
rust inhibitor.
(9) Allow the engine compartment to air dry completely before installing the seats.
(10) Securely install the seats in their original positions.
EJU33687Battery care
If the watercraft will not be used for more than
a month, remove the battery from the water-
craft, check it, and then store it in a cool, dry
place.
WARNING
EWJ00792
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, beaten
UF2T72E0.book Page 87 Monday, July 22, 2013 2:26 PM
Care and storage
89
Checking the battery bands
Make sure that the battery bands are not
damaged.
To store the battery:
(1) Clean the battery case using fresh water.
(2) If the battery terminals are dirty or cor-roded, clean them using a wire brush.
(3) Apply Yamaha Marine Grease or Yamaha Grease A to the battery termi-nals.
(4) Store the battery in a cool, dry place. NOTICE: Storing the battery in an un-
charged condition can cause perma-
nent battery damage. Check the
battery periodically.
[ECJ00103]
To install the battery:
(1) Place the battery in the battery compart- ment and hook the battery bands onto
the holders.
(2) Connect the positive (+) battery lead (red) to the positive (+) battery terminal.
NOTICE: Reversal of the battery leads
will damage the electrical parts.
[ECJ00262]
(3) Connect the negative (–) battery lead (black) to the negative (–) battery termi-
nal.
(4) Connect the breather hose to the bat- tery. WARNING! Fire or explosion
could result if the breather hose is
damaged, obstructed, or not connect-
ed properly.
[EWJ00452]
(5) Make sure that the battery is securely held in place.
1Battery band
1 Battery terminal
Recommended water-resistant grease:
Yamaha Marine Grease/Yamaha
Grease A
UF2T72E0.book Page 89 Monday, July 22, 2013 2:26 PM
Care and storage
90
EJU33493
Long-term storage
WARNING
EWJ00331
Always place the watercraft upright in a
horizontal position when storing it, other-
wise fuel could leak out into the engine or
engine compartment, which could create
a fire hazard.
Storage for long periods of time, such as win-
ter storage, requires preventive maintenance
to ensure against deterioration. It is advisable
to have the watercraft serviced by a Yamaha
dealer prior to storage.
However, the following procedures can be
performed easily by the owner.
EJU40763Cleaning
(1) Flush the cooling water passages. (Seepage 86 for information on flushing the
cooling water passages.)
TIP:
If you will be storing the watercraft for a pro-
longed period, such as winter storage, top off
the fuel tank with fresh gasoline and add fuel
stabilizer and conditioner to the fuel tank ac-
cording to the manufacturer’s instruction be-
fore starting the engine.
(2) Clean the watercraft. (See page 87 for in-formation on cleaning the watercraft.)
Wax the hull with a non-abrasive wax.
EJU42541Lubrication
Use a suitable marine grease applicator and
spray a rust inhibitor between the inner and
outer cables to lubricate the cables and
purge out any dirt and moisture.
To keep moving parts sliding or rotating
smoothly, lubricate them with water-resistant
grease.
Steering cable (jet thrust nozzle end) and
Q.S.T.S. rod (jet thrust nozzle end)
Shift cable (shift lever end)
Shift cable (reverse gate end)Recommended water-resistant grease:
Yamaha Marine Grease/Yamaha
Grease A
UF2T72E0.book Page 90 Monday, July 22, 2013 2:26 PM
Maintenance
92
EJU33769
Maintenance
Periodic checks and lubrication will keep
your watercraft in the safest and most effi-
cient condition possible. Therefore, make
sure to carry out the periodic maintenance.
Safety is an obligation of the watercraft own-
er. Proper maintenance must be carried out
to keep the exhaust emission and sound lev-
els within the regulated limits. The most im-
portant points of watercraft inspection and
lubrication are explained on the following
pages.
See a Yamaha dealer for genuine Yamaha re-
placement parts and optional accessories
designed for your watercraft.
Remember, failures that are the result of the
installation of parts or accessories which are
not qualitatively equivalent to genuine
Yamaha parts are not covered by the limited warranty.
Maintenance, replacement, or repair of
the emission control devices and system
may be performed by any marine SI engine
repair establishment or individual. War-
ranty repair, however, must be performed
at an authorized Yamaha marine dealer-
ship.
WARNING
EWJ00312
Be sure to turn off the engine when you
perform maintenance unless otherwise
specified. If you are not familiar with ma-
chine servicing, this work should be done
by a Yamaha dealer or other qualified me-
chanic.
EJU33803Tool kit
A tool kit is included with this watercraft.
Place the tool kit in a waterproof bag and al- ways carry it with you whenever you use the
watercraft.
EJU42021Removing and installing the engine
cover
The engine cover is removable.
To remove the engine cover:
(1) Remove the seats. (See page 46 for seat
removal and installation procedures.)
(2) Remove the engine cover screws.
1 Tool bag
2 Screwdriver
3 Garden hose adapter
4 10/12 mm box wrench
5 Pliers
6 10/12 mm open-end wrench
1 Engine cover screw
1
UF2T72E0.book Page 92 Monday, July 22, 2013 2:26 PM
Maintenance
95
EJU36943Engine oil and oil filter
WARNING
EWJ00341
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
NOTICE
ECJ00992
Do not run the engine with too much or not
enough oil in the engine, otherwise the en-
gine could be damaged.
It is recommended to have a Yamaha dealer
change the engine oil and the engine oil filter.
However, if you choose to change the oil and
filter on your own, consult a Yamaha dealer.
Air filter elementCheck —
Engine oil Replace 95
Oil filter Replace 95
Valve clearance Check, adjust —
Item
OperationInitial
Thereafter every
Page
10
hours 50 hours 100
hours 200
hours
6
months 12
months 12
months 24
months
UF2T72E0.book Page 95 Monday, July 22, 2013 2:26 PM
Trouble recovery
98
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible55
Stale or contaminat-
ed Have serviced by
Yamaha dealer
—
Fuel tank Water or dirt present Have serviced by Yamaha dealer—
Spark plug Fouled or defective Have serviced by Yamaha dealer—
Incorrect heat range Have serviced by Yamaha dealer —
Gap incorrect Have serviced by Yamaha dealer —
Spark plug
cap Not connected or
loose Have serviced by
Yamaha dealer
—
Cracked, torn, or
damaged Have serviced by
Yamaha dealer
—
Electrical wir-
ing Loose connection Have serviced by
Yamaha dealer —
Fuel injec-
tion system Faulty or clogged in-
jectors Have serviced by
Yamaha dealer
—
Warning light or in-
dicator blinks or
comes on Fuel level
warning
Fuel tank empty Refill as soon as pos-
sible 55
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 44
Engine over-
heat warning Jet intake clogged Clean
100
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 45
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2T72E0.book Page 98 Monday, July 22, 2013 2:26 PM
Trouble recovery
99
Watercraft slow or
loses powerShift lever Not completely shift-
ed into forward posi-
tion Push lever forward
until it stops 32
Watercraft
operation
mode Low RPM Mode acti-
vated
Deactivate Low RPM
Mode 35
Cavitation Jet intake clogged Clean 100 Impeller damaged or
worn Have serviced by
Yamaha dealer
100
Engine over-
heat warning Engine speed reduc-
tion control activated Clean jet intake and
cool engine
44
Oil pressure
warning Engine speed reduc-
tion control activated Add oil
44
Spark plug Fouled or defective Have serviced by Yamaha dealer—
Incorrect heat range Have serviced by Yamaha dealer —
Gap incorrect Have serviced by Yamaha dealer —
Spark plug
cap Not connected or
loose Have serviced by
Yamaha dealer
—
Electrical wir-
ing Loose connection Have serviced by
Yamaha dealer —
Fuel Stale or contaminat- ed Have serviced by
Yamaha dealer
—
Air filter Clogged Have serviced by Yamaha dealer—
Oil buildup Have serviced by Yamaha dealer —
Throttle lever Faulty Have serviced by Yamaha dealer—
TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2T72E0.book Page 99 Monday, July 22, 2013 2:26 PM
Trouble recovery
100
EJU34624
Emergency proceduresEJU34635Cleaning the jet intake and impeller
WARNING
EWJ00783
Before attempting to remove weeds or de-
bris from the jet intake or impeller area,
shut the engine off and remove the clip
from the engine shut-off switch. Severe in-
jury or death could result from coming in
contact with the rotating parts of the jet
pump.
If weeds or debris gets caught in the jet intake
or impeller, cavitation can occur, causing jet
thrust to decrease even though engine speed
rises. If this condition is allowed to continue,
the engine will overheat and may seize.
NOTICE: If weeds or debris gets caught in
the jet intake, do not operate the water-
craft above trolling speed until they have
been removed.
[ECJ00654]
If there is any sign that the jet intake or impel-
ler is clogged with weeds or debris, return to
shore and check the intake and impeller. Al- ways stop the engine before beaching the
watercraft.
(1) Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches. Turn the
watercraft on its side as shown.
NOTICE: Always turn the watercraft
over onto its port (left) side. When
turning the watercraft on its side, sup-
port the bow so that the handlebars
are not bent or damaged.
[ECJ00662]
UF2T72E0.book Page 100 Monday, July 22, 2013 2:26 PM