2021 YAMAHA EX DELUXE ECU

Pre-operation checks
52
TIP:
To ensure safety and reliability, pre-operation checks should be made each time the water-
craft is used.
Stern drain plugs Check the stern drain plugs for damage and foreign
material and check that they are securely installed.
58
Hood Check that the hood is securely closed. 58
Seat Check that the seat is securely installed. 37
POST-LAUNCH CHECKS
Cooling water pilot outlet Check that water is discharged from the cooling
water pilot outlet while the engine is running.
59
Multifunction information
center Check the multifunction information center for prop-
er operation.
59
Shift system (EX DELUXE /
EX LIMITED) Check the shift system for proper operation. 59
Engine idling speed Check the engine idling speed. 59
ITEM ROUTINE PAGE
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Pre-operation checks
53
EJU32282
Pre-operation check pointsEJU44551Pre-launch checks
Perform the pre-launch checks in the pre-op-
eration checklist while the watercraft is on
land.
To perform the pre-launch checks:
(1) Remove the seat, seat storage compart-ment, and fire extinguisher holder. (See
page 37 for seat removal and installation
procedures, page 41 for information on
the seat storage compartment, and page
42 for information on the fire extinguisher
holder.)
(2) Perform the checks and make sure that there are no malfunctioning items or oth-
er problems.
(3) After completing these checks, securely install the seat storage compartment, fire
extinguisher holder, and seat in their
original positions.
EJU32334Engine compartment checkEWJ00462
Failure to ventilate the engine compart-
ment could result in a fire or explosion. Do
not start the engine if there is a fuel leak.
Ventilate the engine compartment. Leave the
engine compartment open for a few minutes
to allow any fuel vapors to escape. Make sure that there is no damage inside the
engine compartment.
EJU34215Fuel system checksEWJ00382
Leaking fuel can result in fire or explosion.
Check for fuel leakage regularly.
If any fuel leakage is found, the fuel sys-
tem must be repaired by a qualified me-
chanic. Improper repairs can make the
watercraft unsafe to operate.
Make sure that there is no damage, leakage,
or other problem in the fuel system.
Check:
Fuel filler cap and seal for damage
Fuel tank for damage and leakage
Fuel hoses and joints for damage and leak-
age
Fuel tank breather hose for damage and
leakage
EJU36875Fuel level check
Check the fuel level in the fuel tank.
Add fuel if necessary. (See page 43 for infor-
mation on filling the fuel tank.)
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Pre-operation checks
55
the watercraft if the battery does not have
sufficient power to start the engine or if it
shows any other signs of decreased pow-
er. Loss of battery power may leave you
stranded.
[EWJ01241]
Make sure that the battery is securely held in
place.
EJU32614Steering system checks
Turn the handlebars to the right and left sev-
eral times to make sure that operation is
smooth and unrestricted throughout the
whole range, and that the free play is not ex-
cessive.
Turn the handlebars as far as possible to the
right and left to make sure that the jet thrust
nozzle moves as the handlebars are turned,
and that there is no difference between the right and left fully turned positions of the jet
thrust nozzle.
EJU32636Reverse system checks (EX SPORT)EWJ00032
Do not touch the reverse gate while the
shift lever is being operated, otherwise
you could be pinched.
1
Negative (–) battery terminal: Black lead
2 Positive (+) battery terminal: Red lead
1
2
Difference between fully turned posi-
tions of jet thrust nozzle (distances A
and B):
Maximum 5 mm (0.20 in)
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Pre-operation checks
58
er dealer to obtain one meeting the proper
specifications.
EJU40122Safety equipment check
Check that safety equipment meeting the ap-
plicable regulations is on board.
EJU32353Hull and deck check
Check the hull and deck for damage or other
problem.
EJU32657Jet intake checks
Make sure that the jet intake is not damaged
or clogged with weeds or debris. If the jet in-
take is clogged, clean it. (See page 89 for in-
formation on the jet intake.)
EJU43221Jet thrust nozzle and reverse gate check
(EX SPORT / EX DELUXE / EX LIMITED)
Check the jet thrust nozzle and reverse gate
for damage or other problem.
EJU44250Stern drain plug checks
Loosen the stern drain plugs and remove
them, and then make sure that the plugs and
O-rings on the plugs are not damaged and
that there is no foreign material on the
threads or O-rings on the plugs. NOTICE:
Before installing the stern drain plugs,
clean the drain plug threads and the O-
rings on the plugs to remove any foreign
materials, such as dirt or sand. Otherwise,
the stern drain plugs could be damaged,
allowing water to enter the engine com-
partment. Check the O-rings on the stern
drain plugs and make sure that the plugs
are tightened securely before launching
the watercraft. Otherwise, water may flood the engine compartment and cause
the watercraft to submerge.
[ECJ00363]
Securely install the stern drain plugs by tight-
ening them until they stop.
EJU44640Hood check
Close the hood, hook the hood latches, and
check that the hood is securely closed.
1
Stern drain plug
2 O-ring
1 Stern drain plug
1 Hood latch
2
1
1
1
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Operation
68
bottom of the watercraft, otherwise peb-
bles or sand could be sucked into the jet
intake, causing impeller damage and en-
gine overheating.
[ECJ00473]
TIP:
EX SPORT / EX DELUXE / EX LIMITED: This
watercraft is equipped with a reboarding
step, which can be lowered and used to as-
sist in reboarding. (See page 38 for informa-
tion on operating the reboarding step.)
EJU36354Boarding alone
(1) From the rear of the watercraft, placeboth hands on the boarding platform,
pull yourself up, and then grasp the
handgrip with one hand. (2) Pull yourself up to a kneeling position on
the boarding platform, and then move to
the seat and sit astride.
(3) Attach the engine shut-off cord (lanyard) to your left wrist, and then attach the clip
to the engine shut-off switch.
(4) Grip the handlebars with both hands and place both feet on the floor of the foot-
well.
(5) Look in all directions, start the engine, and then start off slowly.
EJU43260Boarding with passenger(s)EWJ01800
Severe internal injuries can occur if wa-
ter is forced into body cavities as a re-
sult of being near the jet thrust nozzle.
Do not start the engine until the passen-
gers are seated with their feet on the
floor of the footwell and are securely
60 cm (2 ft)
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Operation
69
holding on to the person in front of them
or to the handgrip provided.
Before boarding the watercraft, make
sure that the engine is stopped. If the
engine is running, the reverse gate may
move down and a person boarding
could be pinched.
The heavier the total weight of the operator
and passenger(s), the more difficult it will be
to balance the watercraft. Do not operate the
watercraft when the total weight exceeds 225
kg (496 lb) including any cargo.
To board with passenger(s):
(1) Board as noted in the previous section“Boarding alone”.
(2) Grip the handlebars with both hands and place both feet on the floor of the foot-
well.
(3) Have the first passenger move to the rear of the watercraft. (4) Have the first passenger board using the
same procedure as the operator, place
their feet on the floor of the footwell, and
securely hold on to the operator.
(5) Have the second passenger follow the same procedure. When the second pas-
senger is boarding, try to balance the
watercraft together with the first passen-
ger.
(6) Make sure that the passenger(s) have their feet on the floor of the footwell and
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Operation
70
are securely holding on to the person in
front of them or to the handgrip provided.
(7) Attach the engine shut-off cord (lanyard) to your left wrist, and then attach the clip
to the engine shut-off switch.
(8) Look in all directions, start the engine, and then start off slowly.
EJU33084Starting offEWJ00713
To avoid collisions:
Scan constantly for people, objects, and
other watercraft. Be alert for conditions
that limit your visibility or block your vi-
sion of others.
Operate defensively at safe speeds and
keep a safe distance away from people,
objects, and other watercraft.
Do not follow directly behind watercraft
or other boats. Do not go near others to
spray or splash them with water, go too
close to other boats, or go too fast for
the traffic conditions. Avoid sharp turns
or other maneuvers that make it hard for
others to avoid you or understand where
you are going. Avoid areas with sub-
merged objects or shallow water.
Take early action to avoid collisions. Re-
member, watercraft and other boats do
not have brakes. Do not release the
throttle lever when trying to steer away from objects—as with other power-
boats, you need throttle to steer.
ECJ01341
Never run the engine in water that is less
than 60 cm (2 ft) deep from the bottom of
the watercraft, otherwise pebbles or sand
could be sucked into the jet intake, caus-
ing impeller damage and engine overheat-
ing.
EJU44381Starting off from a trailer
EX:
(1) Launch the watercraft, and then turn it
around so that the bow faces the direc-
tion you wish to go.
(2) Attach the engine shut-off cord (lanyard) to your left wrist, and then attach the clip
to the engine shut-off switch.
(3) Look in all directions, start the engine, and then start off slowly.
EX SPORT:
(1) Launch the watercraft, and then move the shift lever to the reverse position.
(See page 28 for information on the re-
verse system.)
(2) Attach the engine shut-off cord (lanyard) to your left wrist, and then attach the clip
to the engine shut-off switch.
(3) Look in all directions, start the engine, and then start off slowly.
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Care and storage
75
ter flows out continually from the jet
thrust nozzle.
(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 seat storage com- partment and seat in their original posi-
tions.
EJU44770Cleaning the watercraft
(1) Remove the seat and fire extinguisherholder. (See page 37 for seat removal
and installation procedures and page 42 for information on the fire extinguisher
holder.)
(2) If the watercraft will be stored for a week or more, rustproof the internal engine
components to help prevent corrosion.
(See page 78 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 47 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 seat and engine compart-
ment 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 seat.
(11) Securely install the fire extinguisher hold- er and seat in their original positions.
EJU3368ABattery 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.
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