2022 YAMAHA SUPERJET air condition

Care and storage
58
water flows out continually from the
cooling water pilot outlet.
(7) 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 6.
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]
(8) Turn the water supply off.
(9) Discharge the remaining water out of the cooling water passages by alternately
squeezing and releasing the throttle lever
quickly for 10 to 15 seconds.
(10) Stop the engine.
(11) Remove the garden hose adapter, and then securely install the flushing hose
connector cap by tightening it until it
stops.
(12) Securely install the hood in its original position.
EJU40746Cleaning the watercraft
(1) Remove the hood. (See page 26 for hoodremoval and installation procedures.)
(2) If the watercraft will be stored for a week or more, rustproof the internal engine
components to help prevent corrosion. (See page 61 for information on rust-
proofing the internal engine compo-
nents.)
(3) 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]
(4) Drain the water from the engine com- partment. (See page 35 for information
on draining the bilge water.)
(5) Wipe the engine and engine compart- ment with a dry cloth.
(6) Wash down the hull, deck, and jet pump with fresh water.
(7) Wipe the hull, deck, and jet pump with a dry cloth.
(8) Wipe all vinyl and rubber components, such as the engine compartment seals,
with a vinyl protectant.
(9) To minimize corrosion, spray metallic parts of the hull, deck, and engine with a
rust inhibitor.
(10) Allow the engine compartment to air dry completely before installing the hood.
(11) Securely install the hood in its original position.
EJU3368CBattery 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.
EWJ00793
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.
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Maintenance
63
EJU3376A
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.
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.
EJU3433AAdjusting the steering friction
The amount of friction in the steering can be
adjusted to suit operator preference. To adjust the steering friction:
(1) Lift the steering pole and support it with
the lock pin.
(2) Remove the plastic fasteners, and then remove the handlebar cover.
(3) Turn the handlebars so that the left han- dlebar grip is facing down.
1Steering pole
1 Lock pin
1 Plastic fastener
2 Handlebar cover
1
1
12
UF4R71E0.book Page 63 Monday, May 10, 2021 1:14 PM

Maintenance
66
EJU43103Periodic maintenance chart
The periodic maintenance chart gives general guidelines for periodic maintenance. Have a
Yamaha dealer perform the checks in the following chart. However, maintenance may need to be performed more frequently depending on your operating conditions. If you have any
questions, consult a Yamaha dealer.
This “ √” mark indicates items to be checked and serviced by a Yamaha dealer.
Item OperationInitial Thereafter every
Page
10 hours 50 hours
or 12
months *1 100
hours or 12
months *1 200
hours or 24
months *1
Fuel line Check fuel hoses and
clamps
√
—
Fuel filler cap/Wa-
ter separator Check O-rings for cracks
and deformation
√
—
Fuel tank Check installation and
straps
√
—
Water inlet strainer Check for clogs and dam-
age
√
—
Cooling water hos-
es Check for damage and
leakage, and check
clamps
√
—
Engine oil Replace √√ 68
Oil filter Replace √68
Spark plugs Check √√ —
Battery Check state of charge,
terminals and bands
√
—
Battery leads Check terminals √—
Steering master Check and adjust √√ —
Steering cable Check exterior and con-
nections, and lubricate
√
—
Air intake hoses Check for damage, and
check clamps
√
—
Throttle body Lubricate throttle valve √—
Exhaust system Check for exhaust leak-
age, and check hoses and
clamps √
—
Breather hose Check breather hose and
clamps
√
—
Impeller Check for bends, dam-
age, and foreign material
√
—
Drive shaft spline Check for damage and lu-
bricate splines √
—
UF4R71E0.book Page 66 Monday, May 10, 2021 1:14 PM