check engine YAMAHA FX SVHO 2021 User Guide

Operation and handling requirements
57
EJU31823
Fuel requirementsEJU45240FuelEWJ00283
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.
ECJ01870
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.
Use only gasoline with a minimum pump
octane number of 91 or a minimum re-
search octane number of 95. Low-oc-
tane gasoline can seriously damage the
engine.
Your Yamaha engine has been designed to
use premium unleaded gasoline with a pump
octane number [(R+M)/2] of 91 or higher, or a
research octane number of 95 or higher. Ifknocking (or pinging) occurs, use a gasoline
of a different brand.
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. Recommended fuel:
Premium unleaded gasoline with a
minimum octane rating of 91
(Pump octane number) = (R + M)/2
95 (Research octane number)
E5E10
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Operation and handling requirements
58
To fill the fuel tank:
(1) Before refueling, stop the engine. Do notstand or sit on the watercraft. Never refu-
el while smoking, or while in the vicinity
of sparks, open flames, or other sources
of ignition.
(2) Place the watercraft in a well-ventilated area and in a horizontal position.
(3) Remove the seats, and then check the fuel level. (See page 49 for seat removal
and installation procedures.)
(4) Loosen the fuel filler cap and remove it.
(5) Slowly add fuel to the fuel tank.
(6) Stop filling when the fuel level reaches approximately 50 mm (2 in) from the top
of the fuel tank. Do not overfill the fuel
tank. Because fuel expands when it heats up, heat from the engine or the sun
can cause fuel to spill out of the fuel tank.
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 seats in their original positions.
1Fuel filler cap
Fuel tank capacity:
70 L (18.5 US gal, 15.4 Imp.gal)
11Top of the fuel tank
2 Approximately 50 mm (2 in) from top of the
fuel tank
1 Top of the fuel tank
2 Approximately 50 mm (2 in) from top of the
fuel tank
21
21
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Operation and handling requirements
59
EJU40291
Engine oil requirementsEJU41514Engine oilECJ00282
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
TIP:
When the engine is operated at high speeds,
some engine oil may be consumed. Be sure
to check the engine oil level.
Why Yamalube
YAMALUBE oil is a Genuine YAMAHA Part
born of the engineers’ passion and belief that
engine oil is an important liquid engine com-
ponent. We form teams of specialists in the
fields of mechanical engineering, chemistry,
electronics and track testing, and have them
develop the engine together with the oil it will
use. Yamalube oils take full advantage of the
base oil’s qualities and blend in the ideal bal-
ance of additives to make sure the final oil
clears our performance standards. Thus,
Yamalube mineral, semisynthetic and syn- thetic oils have their own distinct characters
and value. Yamaha’s experience gained over
many years of research and development
into oil since the 1960’s helps make Yamalube the best choice for your Yamaha
engine.
Checking the engine oil level
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.
ECJ01002
Make sure that debris and water do not
enter the oil filler hole. Debris and water in
the engine oil can cause serious engine
damage.
To check the engine oil level:
(1) Place the watercraft in a precisely level position on land with the engine
stopped. If the engine was running, allow
the engine oil to settle by waiting 5 min-
utes or more before checking the oil lev-
el.
(2) Remove the seats. (See page 49 for seat removal and installation procedures.)
Recommended engine oil:
YAMALUBE 4W or 4-stroke motor oil
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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Operation and handling requirements
60
(3) Remove the dipstick and wipe it clean.
(4) Insert the dipstick back into the dipsticktube completely. Remove the dipstick
again and make sure that the engine oil
level is between the minimum and maxi-
mum level marks.
(5) If the engine oil level is significantly above the maximum level mark, consult
a Yamaha dealer. If the engine oil level is
below the minimum level mark, add en-
gine oil. (6) Loosen the engine oil filler cap and re-
move it.
(7) Slowly add engine oil.
TIP:
The difference between the minimum and
maximum level marks on the dipstick is equal
to approximately 1 L (1.06 US qt, 0.88 Imp.qt)
of engine oil.
(8) Wait approximately 5 minutes to allow the engine oil to settle, and then check
the engine oil level again.
(9) Repeat steps 3–8 until the engine oil is at the proper level.
(10) Securely install the engine oil filler cap by tightening it until it stops.
(11) Securely install the seats in their original positions.
1Dipstick
1 Maximum level mark
2 Minimum level mark
1
1
2
1Engine oil filler cap
1
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Operation and handling requirements
61
EJU40022
Draining the bilge waterECJ01302
Do not run the engine at full throttle when
bilge water remains in the engine com-
partment. The bilge water can splash into
the engine, which can result in severe
damage.
EJU44260Draining the bilge water on land
To drain the bilge water on land:
(1) Loosen the stern drain plugs and removethem.
(2) Raise the bow of the watercraft, such as by placing the watercraft on a slope, to
drain the bilge water from the engine
compartment.
(3) After the bilge water has drained from the stern drain plug holes, wipe up any re-
maining moisture in the engine compart-
ment with a dry cloth.
(4) Check that the stern drain 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, allow-
ing water to enter the engine compart-
ment. 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 compart-
ment and cause the watercraft to sub-
merge.
[ECJ00363]
(5) Securely install the stern drain plugs by
tightening them until they stop.
EJU40535Draining the bilge water on water
A small quantity of bilge water will remain in
the engine compartment even after the bilge
water is drained on water. To completely
drain the bilge water, remove the watercraft
from the water and drain the bilge water on
land.
Jet vacuum bilge draining system
While the watercraft is operating, bilge water
in the engine compartment is drawn in by the
vacuum that is generated in the jet pump and
discharged from the watercraft through the
jet thrust nozzle.
To drain the bilge water on water:
Operate the watercraft as straight as possible
and above planing speed for at least 2 min-
utes. NOTICE: Do not run the engine at full
throttle for at least 1 minute after the en-
gine has been restarted. Bilge water in the
1 Stern drain plug
11O-ring
1
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First-time operation
63
EJU42690
Engine break-inECJ00432
Failure to perform the engine break-in
could result in reduced engine life or even
severe engine damage.
The engine break-in is essential to allow the
various components of the engine to wear
and polish themselves to the correct operat-
ing clearances. This ensures proper perfor-
mance and promotes longer component life.
To perform the engine break-in:
(1) Check the engine oil level. (See page 59for information on checking the engine
oil level.)
(2) Launch the watercraft and start the en- gine. (See page 75 for information on
starting the engine.)
(3) For the first 5 minutes, operate with the engine speed at 2000 r/min.
(4) For the next 90 minutes, operate with the engine speed below 5000 r/min.
After the engine break-in is complete, the wa-
tercraft can be operated normally.
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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.
69
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
65
TIP:
To ensure safety and reliability, pre-operation checks should be made each time the water-
craft is used.
Jet thrust nozzle and re-
verse gate Check the jet thrust nozzle and reverse gate for
damage.
71
Stern drain plugs Check the stern drain plugs for damage and foreign
material and check that they are securely installed.
71
Hood Check that the hood is securely closed. 72
Front and rear seats Check that the seats are securely installed. 49
POST-LAUNCH CHECKS
Cooling water pilot outlet Check that water is discharged from the port (left)
cooling water pilot outlet while the engine is run-
ning. 72
Multifunction information
center Check the multifunction information center for prop-
er operation.
72
Shift system Check the shift system for proper operation. 72
Engine idling speed Check the engine idling speed. 73
ITEM ROUTINE PAGE
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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 55 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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Pre-operation checks
67
EJU32424Water separator check
Make sure that no water has collected in the
water separator. If water has collected in the
water separator, drain it. (See page 29 for in-
formation on draining the water separator.)
EJU40182Engine unit check
Check the exterior of the engine unit for dam-
age or other problem.
EJU36886Engine oil level check
Make sure that the engine oil level is between
the minimum and maximum level marks on
the dipstick. (See page 59 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 61 for information on draining the
bilge water.)
EJU32486Battery checks
Make sure that the battery terminals are not
damaged and that the battery leads are con-
nected properly. WARNING! Never operate
the watercraft if the battery does not have
sufficient power to start the engine or if it
1 Water separator
1
1Dipstick
1 Maximum level mark
2 Minimum level mark
1
1
2
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