engine overheat YAMAHA FX HO 2017 User Guide

Care and storage
87
EJU37146
Post-operation care
WARNING
EWJ00331
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 passages
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.
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 48
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
1Flushing hose connector
2Flushing hose connector cap
3Garden hose adapter
1
3
2
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Trouble recovery
101
EJU34625
Emergency proceduresEJU34635Cleaning the jet intake and impeller
WARNING
EWJ00783
Before attempting to remove weeds or de-
bris from the jet intake or impeller area,
shut the engine off and remove the clip
from the engine shut-off switch. Severe in-
jury or death could result from coming in
contact with the rotating parts of the jet
pump.
If weeds or debris gets caught in the jet intake
or impeller, cavitation can occur, causing jet
thrust to decrease even though engine speed
rises. If this condition is allowed to continue,
the engine will overheat and may seize.
NOTICE: If weeds or debris gets caught in
the jet intake, do not operate the water-
craft above trolling speed until they have
been removed.
[ECJ00654]
If there is any sign that the jet intake or impel-
ler is clogged with weeds or debris, return to
shore and check the intake and impeller. Al-ways stop the engine before beaching the
watercraft.
(1) Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches. Turn the
watercraft on its side as shown.
NOTICE: Always turn the watercraft
over onto its port (left) side. When
turning the watercraft on its side, sup-
port the bow so that the handlebars
are not bent or damaged.
[ECJ00662]
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107
Index
A
Adjustable tilt steering system ................. 29
Adjustable tilt steering system checks .... 69
After removing the watercraft from the
water ..................................................... 86
Analog speedometer/tachometer ............ 39
B
Battery care.............................................. 88
Battery checks ......................................... 67
Battery, jumping ..................................... 102
Beaching and docking the watercraft ...... 85
Beverage holders ..................................... 54
Bilge water check..................................... 67
Bilge water, draining ................................ 61
Bilge water, draining on land ................... 61
Bilge water, draining on water ................. 61
Boarding alone ......................................... 81
Boarding and starting off from a dock ..... 84
Boarding the watercraft ........................... 81
Boarding with passenger(s) ..................... 82
Bow eye ................................................... 50
Bow storage compartment ...................... 51
Builder’s plate ............................................ 2
C
Capsized watercraft ................................. 84
Check engine warning ............................. 44
Cleaning ................................................... 91
Cleaning the watercraft ............................ 88
Cleat ......................................................... 50
Cooling water pilot outlet ......................... 30
Cooling water pilot outlet check .............. 72
Craft Identification Number (CIN)............... 1
Cruise assist............................................. 37
Cruising limitations................................... 11
D
Digital speedometer ................................. 40
E
Electric trim system.................................. 33
Emergency procedures .......................... 101
Engine break-in ........................................ 63
Engine compartment check ..................... 66
Engine cover, removing and installing ..... 92
Engine idling speed check ....................... 74
Engine oil ................................................. 59
Engine oil and oil filter .............................. 96Engine oil level check ............................... 67
Engine oil requirements ........................... 59
Engine overheat warning.......................... 43
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 70
Engine shut-off switch ............................. 27
Engine stop switch ................................... 27
Engine unit check ..................................... 67
Enjoy your watercraft responsibly ............ 19
Equipment ................................................ 48
F
Fire extinguisher check ............................ 71
Fire extinguisher holder and cover........... 56
Fire extinguisher holder, cover, and
band checks ......................................... 71
Flushing the cooling water passages....... 87
Fuel .......................................................... 57
Fuel level check........................................ 66
Fuel level meter ........................................ 42
Fuel level warning..................................... 43
Fuel requirements .................................... 57
Fuel system checks ................................. 66
Fuses, replacing ..................................... 103
G
Getting to know your watercraft .............. 75
Glossary, watercraft ................................. 20
Glove compartment ................................. 52
H
Handgrip .................................................. 49
Hazard information................................... 15
Hood check .............................................. 72
Hour meter/voltmeter ............................... 41
Hull and deck check ................................ 71
I
Identification numbers ............................... 1
Information display................................... 40
J
Jet intake and impeller, cleaning............ 101
Jet intake checks ..................................... 71
Jet thrust nozzle and reverse gate
check .................................................... 71
Jumper cables, connecting .................... 102
L
Labels, important ....................................... 4
Labels, other .............................................. 8
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