warning YAMAHA EX DELUXE 2018 User Guide

Equipment operation
40
towing it in an emergency. (See page 92 for
information on towing the watercraft.)
EJU34882Stern eyes
The stern eyes are used to attach a rope to
the watercraft when transporting or mooring
it.
EJU40423Cleat
The cleat is used to attach a ski rope to the
watercraft when pulling a wakeboarder or
water-skier. WARNING! Do not use the
cleat to lift the watercraft. The cleat is not
designed to support the watercraft’s
weight. If the cleat breaks, the watercraftcould fall, which could result in severe in-
jury.
[EWJ01511]
EJU31685
Storage compartments
This watercraft is equipped with the following
storage compartments.
The storage compartments are not designed
to be waterproof. If you carry objects that
must be kept dry, put them in a waterproof
bag.
Make sure that the storage compartments
are closed securely before operating the wa-
tercraft.
EJU44660Bow storage compartment
The bow storage compartment is located un-
der the hood.
1Bow eye
1Stern eye
1
1
1Cleat
1
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Operation and handling requirements
44
EJU31823
Fuel requirementsEJU44880Fuel
WARNING
EWJ00283
Gasoline and gasoline vapors are ex-
tremely flammable. To avoid fires and
explosions and to reduce the risk of in-
jury when refueling, follow these in-
structions.
Gasoline is poisonous and can cause in-
jury or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline, inhale a
lot of gasoline vapor, or get some gaso-
line in your eyes, see your doctor imme-
diately. If gasoline spills on your skin,
wash with soap and water. If gasoline
spills on your clothing, change your
clothes.
NOTICE
ECJ00322
Do not use leaded gasoline. Leaded
gasoline can seriously damage the en-
gine.
Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance and engine
damage. Use only fresh gasoline that
has been stored in clean containers.
TIP:
This mark identifies the recommended fuel
for this watercraft as specified by European
regulation (EN228).
Check that gasoline nozzle has the same
identifier when fueling.
Gasohol
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.
E-85 is a fuel blend containing 85% ethanol
and therefore must not be used in this water-
craft. All ethanol blends containing more than
10% ethanol can cause fuel system damage
or engine performance problems.
Yamaha does not recommend gasohol con-
taining methanol because it can cause fuel
system damage and engine performance
problems.
To fill the fuel tank:
(1) Before refueling, stop the engine. Do not
stand or sit on the watercraft. Never refu-
el while smoking, or while in the vicinity Recommended fuel:
Regular unleaded gasoline with a mi-
nimum octane rating of
86
(Pump octane number) = (R + M)/2
90 (Research octane number)
E10
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Operation and handling requirements
46
Do not leave the watercraft with a full
tank in direct sunlight.
(7) Wipe up any spilled fuel immediately with
a dry cloth.
(8) Securely install the fuel filler cap by tight-
ening it until it clicks.
(9) Securely install the fire extinguisher hold-
er and seat in their original positions.EJU40291
Engine oil requirementsEJU44530Engine oil
NOTICE
ECJ00282
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
Checking the engine oil level
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
ECJ00392
Do not run the engine with too much or
not enough oil in the oil tank, otherwise
the engine could be damaged.
Make sure that debris and water do not
enter the oil tank filler hole. Debris and
water in the engine oil can cause serious
engine damage.
TIP:
When checking the engine oil level on land,
the engine must be running while water is
being supplied to the cooling water pas-
sages. (See “Flushing the cooling water
passages” on page 75 for information on
supplying water.)
When checking the engine oil level on wa-
ter, moor the watercraft so that it will not
drift away.
1Top of the fuel tank
2Approximately 50 mm (2 in) from top of the
fuel tank
1Top of the fuel tank
2Approximately 50 mm (2 in) from top of the
fuel tank
21
1
2
Recommended engine oil type:
SAE 10W-30, 10W-40, 20W-40,
20W-50
Recommended engine oil grade:
API SG, SH, SJ, SL
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Pre-operation checks
51
EJU31982
WARNING
EWJ00412
Failure to inspect or maintain the watercraft properly increases the possibility of an ac-
cident or damage to the watercraft. Do not operate the watercraft if you find any prob-
lem. If a problem cannot be corrected by the procedures provided in this manual, have
the watercraft inspected by a Yamaha dealer.
EJU41234Pre-operation checklist
Before using this watercraft, be sure to perform the checks in the following checklist.
ITEM ROUTINE PAGE
PRE-LAUNCH CHECKS
Engine compartmentVentilate the engine compartment.
Check inside the engine compartment for damage.53
Fuel systemCheck the fuel system for leakage.
Check the fuel level in the fuel tank.53
Water separatorCheck the water separator for water. 53
Engine unitCheck the exterior of the engine unit for damage. 54
Engine oil levelCheck the engine oil level. 54
Bilge waterCheck the engine compartment for bilge water. 54
BatteryCheck the battery connections and electrolyte level. 54
Steering systemCheck the steering system for proper operation. 55
Reverse system (EX Sport)Check the reverse system for proper operation. 56
RiDE lever (EX Deluxe)Check the RiDE lever for proper operation. 56
Throttle leverCheck the throttle lever for proper operation. 57
Engine shut-off cord (lan-
yard)Check the engine shut-off cord (lanyard) for dam-
age.57
SwitchesCheck the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.57
Storage compartmentsCheck the storage compartments for damage and
water.58
Fire extinguisher holderCheck the fire extinguisher holder for damage. 58
Fire extinguisherCheck the condition of the fire extinguisher. 58
Safety equipmentCheck that safety equipment meeting the applica-
ble regulations is on board.58
Hull and deckCheck the hull and deck for damage. 58
Jet intakeCheck the jet intake for damage and clogging. 58
Jet thrust nozzle and re-
verse gate (EX Sport / EX
Deluxe)Check the jet thrust nozzle and reverse gate for
damage.58
Stern drain plugsCheck the stern drain plugs for damage and foreign
material and check that they are securely installed.58
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Pre-operation checks
53
EJU32282
Pre-operation check pointsEJU44550Pre-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 38 for seat removal and installation
procedures, page 42 for information on
the seat storage compartment, and page
43 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 check
WARNING
EWJ00462
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 checks
WARNING
EWJ00382
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 44 for infor-
mation on filling the fuel tank.)
EJU32424Water separator check
Make sure that no water has collected in the
water separator. If water has collected in the
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Pre-operation checks
54
water separator, drain it. (See page 27 for in-
formation on draining the water separator.)
EJU40182Engine unit check
Check the exterior of the engine unit for dam-
age or other problem.
EJU41561Engine oil level check
Make sure that the engine oil level is between
the minimum and maximum level marks on
the dipstick attached to the oil tank filler cap.(See page 46 for information on checking the
engine oil level.)
EJU32456Bilge water check
Make sure that no bilge water has collected in
the engine compartment. If bilge water has
collected in the engine compartment, drain it.
(See page 48 for information on draining the
bilge water.)
EJU32485Battery checks
Make sure that the battery terminals and
breather hose are not damaged and that the
battery leads and breather hose are connect-
ed properly. WARNING! Fire or explosion
could result if the breather hose is dam-
1Water separator
1
1Oil tank filler cap/Dipstick
1Dipstick
2Maximum level mark
3Minimum level mark
1
FL
213
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Pre-operation checks
55
aged, obstructed, or not connected prop-
erly.
[EWJ00452]
Make sure that the electrolyte level is be-
tween the minimum and maximum level
marks. WARNING! Never operate the wa-
tercraft if the battery does not have suffi-
cient 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 thewhole 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
1Negative (–) battery terminal: Black lead
2Positive (+) battery terminal: Red lead
3Breather hose
1Maximum level mark
2Minimum level mark
13
2
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Pre-operation checks
56
right and left fully turned positions of the jet
thrust nozzle.
EJU32636Reverse system checks (EX Sport)
WARNING
EWJ00032
Do not touch the reverse gate while the
shift lever is being operated, otherwise
you could be pinched.
Operate the shift lever several times to make
sure that operation is smooth throughout the
whole range. Also, make sure that the reverse
gate moves up and down according to the
operation of the shift lever and that the gate
makes contact with the stoppers. (See page
29 for reverse system operation.)
EJU43213RiDE lever checks (EX Deluxe)
Operate the RiDE lever several times to make
sure that operation is smooth throughout the Difference between fully turned posi-
tions of jet thrust nozzle (distances A
and B):
Maximum 5 mm (0.20 in)
1Stopper
1
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Pre-operation checks
57
whole range. Also, make sure that the RiDE
lever returns automatically to its fully closed
position when released.
EJU42181Throttle lever checks
Operate the throttle lever several times to
make sure that operation is smooth through-
out the whole range. Also, make sure that the
throttle lever returns automatically to its fully
closed (idle) position when released.
EJU32664Engine shut-off cord (lanyard) check
Make sure that the engine shut-off cord (lan-
yard) is not damaged. If the cord is damaged,
replace it. WARNING! Never try to repair
the engine shut-off cord (lanyard) or tie it
together. The engine shut-off cord (lan-
yard) may not pull free when the operatorfalls off, allowing the watercraft to conti-
nue to run and cause an accident.
[EWJ01221]
EJU40692
Switch checks
NOTICE
ECJ01311
Do not run the engine over 4000 r/min on
land. Also, do not run the engine for more
than 15 seconds without supplying water,
otherwise the engine could overheat.
Check the start switch, the engine stop
switch, and the engine shut-off switch for
proper operation. (See pages 25 to 25 for in-
formation on operating each switch.)
To check the operation of the switches:
(1) Push the start switch to make sure that
the engine starts.
1Start switch
2Engine stop switch
3Engine shut-off switch
4Clip
5Engine shut-off cord (lanyard)
1
3
4
25
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Pre-operation checks
60
EJU43392Shift system check (EX Deluxe)
Operate the throttle lever and RiDE lever, and
check that the watercraft moves or does not
move according to the displayed shift indica-
tor. (See page 29 for shift system operation
procedures.) WARNING! To avoid colli-
sions, operate at safe speeds and keep a
safe distance away from people, objects,
and other watercraft.
[EWJ01860]
EJU40172
Engine idling speed check
Start the engine and warm it up. Use the ta-
chometer in the multifunction information
center to make sure that the engine idling
speed is not significantly above or below the
specified range.
1Shift indicator
2“F” (Forward position)
3“N” (Neutral position)
4“R” (Reverse position)
Engine idling speed:
1500 ±100 r/min
12
3
4
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