2021 YAMAHA FX HO CRUISER fuel

Pre-operation checks
64
EJU31982
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.
EJU41235Pre-operation checklist
Before using this watercraft, be sure to perform the checks in the following checklist.
ITEMROUTINEPAGE
PRE-LAUNCH CHECKS
Engine compartment Ventilate the engine compartment.
Check inside the engine compartment for damage.
66
Fuel system Check the fuel system for leakage.
Check the fuel level in the fuel tank.
66
Water separator Check the water separator for water. 67
Engine unit Check the exterior of the engine unit for damage. 67
Engine oil level Check the engine oil level. 67
Bilge water Check the engine compartment for bilge water. 67
Battery Check the battery connections. 67
Steering system Check the steering system for proper operation. 68
Adjustable tilt steering sys-
tem Check the adjustable tilt steering system for proper
operation and check that the handlebars are se-
curely locked in place.
68
RiDE lever Check the RiDE lever for proper operation. 69
Throttle lever Check the throttle lever for proper operation. 69
Yamaha Security System Check the Yamaha Security System for proper op-
eration.
69
Engine shut-off cord (lan-
yard) Check the engine shut-off cord (lanyard) for dam-
age.
69
Switches Check the start switch, engine stop switch, and en-
gine shut-off switch for proper operation.
69
Electric trim system Check the electric trim system for proper operation. 70
Storage compartments Check the storage compartments for damage and
water.
70
Fire extinguisher holder,
cover, and band Check the fire extinguisher holder, cover, and band
for damage.
70
Fire extinguisher Check the condition of the fire extinguisher. 71
Safety equipment Check that safety equipment meeting the applica-
ble regulations is on board.
71
Hull and deck Check the hull and deck for damage. 71
Jet intake Check the jet intake for damage and clogging. 71
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Pre-operation checks
66
EJU32282
Pre-operation check pointsEJU42384Pre-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 seats and removable water-tight storage compartment. (See page 49
for seat removal and installation proce-
dures and page 54 for information on the
removable watertight storage compart-
ment.)
(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 removable watertight storage
compartment and seats 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 57 for infor-
mation on filling the fuel tank.)
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Care and storage
86
EJU37146
Post-operation careEWJ00331
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.
After using the watercraft, always take it out
of the water, clean it, and store it. Leaving the
watercraft in the water for extended periods
will accelerate the rate of normal deteriora-
tion of the jet pump and hull. Marine organ-
isms and corrosion are some of the
conditions that can shorten the life of many
watercraft components.
EJU42222Flushing the cooling water passagesECJ01311
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.
Flush the cooling water passages to prevent
them from clogging with salt, sand, or dirt.
(1) Place the watercraft in a horizontal posi-tion.
(2) Remove the seats and removable water- tight storage compartment. (See page 49
for seat removal and installation proce-
dures and page 54 for information on the
removable watertight storage compart-
ment.)
(3) Open the stern storage compartment. (See page 53 for information on the stern
storage compartment.) (4) Connect the garden hose adapter to a
garden hose.
(5) Loosen the flushing hose connector cap and remove it. Insert the garden hose
adapter into the flushing hose connector
by pushing and twisting it until it is se-
curely connected.
(6) Connect the garden hose to a water tap.
(7) Make sure that the area around the wa- tercraft is clear, and then start the en-
gine. Immediately after the engine starts,
fully turn the water supply on so that wa-
1Garden hose adapter
2 Garden hose
1 Flushing hose connector
2 Flushing hose connector cap
3 Garden hose adapter
12
2
1
3
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Care and storage
89
(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) Make sure that the battery is securely held in place.
EJU33493
Long-term storageEWJ00331
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. (See
page 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.
EJU44741Lubrication
To keep moving parts sliding or rotating
smoothly, lubricate them with water-resistant
grease.
Recommended water-resistant grease:
YAMALUBE MARINE
GREASE/Yamaha Grease A
Recommended water-resistant grease:YAMALUBE MARINE GREASE /
Ya m a h a G r e a s e A
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Maintenance
93
EJU43101Periodic 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 √√ 95
Oil filter Replace √95
Intermediate hous-
ing Lubricate
√—
Spark plugs Check √√ —
Battery Check state of charge,
terminals and bands
√
—
Battery leads Check terminals √—
Steering master Check operation and for
looseness
√√
—
Steering cable Check exterior and con-
nections, and lubricate
√
—
Electric trim rod Check exterior and con-
nections, and lubricate
√
—
Shift rod and re-
verse gate Check exterior and con-
nections, and lubricate
√
—
Air filter element Check for damage and
dirt
√
—
Air intake hoses Check for damage, and
check clamps
√
—
Thr

ottle body Lubricate throttle valve √—
UF3V72E0.book Page 93 Tuesday, June 16, 2020 2:29 PM

Specifications
96
EJU45442
Specifications
Watercraft capacity:
Maximum people on board:3 person
Maximum load capacity: 240 kg (530 lb)
Dimensions and weight:
Length:
3.58 m (140.9 in)
Width: 1.27 m (50.0 in)
Height: 1.23 m (48.4 in)
Dry weight: 379 kg (836 lb) (FX HO)
380 kg (838 lb) (FX CRUISER HO)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):125.0 kW at 7600 r/min
Maximum fuel consumption:
49.7 L/h (13.1 US gal/h, 10.9 Imp.gal/h)
Cruising range at full throttle: 1.41 hour
Trolling speed: 1300 ±100 r/min
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Number of cylinders: 4
Engine displacement:
1812 cm³
Bore × stroke:
86.0 × 78.0 mm (3.39 × 3.07 in)
Compression ratio: 11.0 : 1
Valve clearance-intake (cold):
0.14–0.23 mm (0.0055–0.0091 in)
Valve clearance-exhaust (cold): 0.28–0.37 mm (0.0110–0.0146 in)
Lubrication system: Wet sump
Cooling system:
Water
Starting system: Electric Ignition system:
T.C.I.
Spark plug (NGK): LFR6A
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Battery capacity: 12 V, 18 Ah
Battery type: YTX20L-BS
Charging system:
Flywheel magneto
Drive unit:
Propulsion system:Jet pump
Jet pump type: Axial flow, single stage
Impeller rotation:
Counterclockwise
Jet thrust nozzle angle: 24+24 °
Jet thrust nozzle trim angle: -5, -3, 0, 3, 6 °
Fuel and oil:
Recommended fuel:Regular unleaded gasoline
Minimum octane rating (PON): 86
Minimum octane rating (RON):
90
Recommended engine oil: YAMALUBE 4W or 4-stroke motor oil
Recommended engine oil type SAE: SAE 10W-30, 10W-40, 20W-40, 20W-50
Recommended engine oil grade API:
API SG, SH, SJ, SL
Fuel tank total capacity: 70 L (18.5 US gal, 15.4 Imp.gal)
Engine oil quantity with oil filter replacement: 3.7 L (3.91 US qt, 3.26 Imp.qt)
Engine oil quantity without oil filter replacement:
3.5 L (3.70 US qt, 3.08 Imp.qt)
Engine oil total quantity: 5.3 L (5.60 US qt, 4.66 Imp.qt)
UF3V72E0.book Page 96 Tuesday, June 16, 2020 2:29 PM

Trouble recovery
97
EJU34562
Troubleshooting
If you have any trouble with your watercraft, use the troubleshooting chart to check for the
possible cause.
If you cannot find the cause, consult a Yamaha dealer.
EJU45320Troubleshooting chart
Confirm the possible cause and remedy, and then refer to the applicable page.
TROUBLEPOSSIBLE CAUSE REMEDYPAGE
Engine does not
start (Starter motor
does not turn over) Ya m a h a S e -
curity System
Lock mode selected Select unlock mode
25
Engine shut-
off switch Clip not in place Install clip
26
Fuse Burned out Replace fuse and
check wiring 102
Battery Run down Recharge87
Poor terminal con-
nections Tighten as required
87
Terminal corroded Clean or replace 87
Starter motor Faulty Have serviced by
Yamaha dealer —
Engine does not
start (Starter motor
turns over) Throttle lever Squeezed
Release26
Faulty Have serviced by
Yamaha dealer —
RiDE lever Squeezed Release26
Faulty Have serviced by
Yamaha dealer —
Fuel Fuel tank empty Refill as soon as pos-
sible 57
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—
Fuel injec-
tion system Fuel pump faulty Have serviced by
Yamaha dealer —
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Trouble recovery
98
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible57
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 —
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 is dis-
played Fuel level
warningFuel tank empty Refill as soon as pos-
sible 57
Oil pressure
warning Oil pressure dropped Have serviced by
Yamaha dealer 48
Engine over-
heat warning Jet intake clogged Clean
100
Check en-
gine warning Faulty sensors Have serviced by
Yamaha dealer 47
TROUBLE POSSIBLE CAUSE REMEDY PAGE
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