2010 YAMAHA FX HO CRUISER service

Instrument operation
42
display switches to the hour meter from the
voltmeter.
Voltmeter
The voltmeter shows the battery voltage.
When the battery voltage is normal, the volt-
meter displays approximately 12 volts.
If the battery voltage has dropped significant-
ly, “LO” is displayed on the voltmeter. If the
battery voltage has risen significantly, “HI” is
displayed. If “LO” or “HI” is displayed, immedi-
ately return to shore and have a Yamaha
dealer service the watercraft.
To switch to the voltmeter from the hour
meter:
Push the “Volt/Hour” button for at least 1 sec-
ond after the multifunction information center
is activated for more than 10 seconds. The
display switches to the voltmeter from the
hour meter.
EJU31514Fuel level meter
The fuel level meter shows the amount of fuel
remaining in the fuel tank. The amount of re-
maining fuel is shown using eight display seg-
ments, which disappear two at a time as the
fuel level decreases.
TIP:
The accuracy of the fuel level meter varies de-
pending on the operating conditions. Use this
function as a reference only.
EJU36815Fuel level warning
If the fuel remaining in the fuel tank drops to
about 18 L (4.8 US gal, 4.0 Imp. gal), the
“WARNING” indicator light, the fuel indicator,
and the lowest two fuel level segments blink,
and the buzzer sounds intermittently.
If the fuel level warning is activated, refill the
fuel tank as soon as possible. (See page 52
for information on filling the fuel tank.)
1“Volt/Hour” button
2Hour meter
1“Volt/Hour” button
2Vo l t m e t e r
1Fuel level meter
1
UF2H71E0.book Page 42 Thursday, July 2, 2009 10:05 AM

Care and storage
85
EJU33492
Long-term storage
WARNING
EWJ00330
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.
EJU40762Cleaning
(1) Flush the cooling water passages. (See
page 81 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 82 for in-
formation on cleaning the watercraft.)
Wax the hull with a non-abrasive wax.
EJU36914Lubrication
Use a suitable marine grease applicator and
spray a rust inhibitor between the inner and
outer cables to lubricate the cables and purge
out any dirt and moisture.
To keep moving parts sliding or rotating
smoothly, lubricate them with water-resistant
grease.

Throttle cable (throttle lever end)

Steering cable (jet thrust nozzle end) and
Q.S.T.S. rod (jet thrust nozzle end)

Shift cable (shift lever end)Recommended water-resistant grease:
Yamaha Marine Grease/Yamaha
Grease A
UF2H71E0.book Page 85 Thursday, July 2, 2009 10:05 AM

Maintenance
90
EJU37062Periodic 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 ques-
tions, consult a Yamaha dealer.
This“” mark indicates items to be checked and serviced by a Yamaha dealer.
Item OperationInitial Thereafter every
Page 10
hours50 hours100
hours200
hours
6
months12
months12
months24
months
Spark plugsCheck, clean, replace—
Lubrication pointsLubricate—
Internal engine
componentsSpray lubricant—
Intermediate hous-
ingLubricate—
Fuel systemCheck—
Fuel tankCheck, clean—
Engine idling
speedCheck, adjust—
Throttle shaftCheck—
Water inlet strain-
erCheck, clean—
Bilge strainerClean—
Electric bilge
pump strainerClean—
ImpellerCheck—
Jet thrust nozzle
angleCheck, adjust—
Steering masterCheck, adjust—
Q.S.T.S. mecha-
nismCheck, adjust—
Shift cable and re-
verse gateCheck, adjust—
Throttle cableCheck—
Stern drain plugsCheck, replace—
BatteryCheck, charge—
Rubber couplingCheck—
UF2H71E0.book Page 90 Thursday, July 2, 2009 10:05 AM

Trouble recovery
93
EJU34561
Troubleshooting
If you have any trouble with your watercraft, use the troubleshooting chart to check for the pos-
sible cause.
If you cannot find the cause, consult a Yamaha dealer.
EJU36984Troubleshooting chart
Confirm the possible cause and remedy, and then refer to the applicable page.
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
start (Starter motor
does not turn over)Yamaha Se-
curity SystemLock mode selected Select unlock mode
27
Engine shut-
off switchClip not in place Install clip
28
Fuse Burned out Replace fuse and
check wiring97
Battery Run down Recharge 82
Poor terminal con-
nectionsTighten as required
82
Terminal corroded Clean or replace 82
Starter motor Faulty Have serviced by
Yamaha dealer—
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 28
Fuel Empty Refill as soon as pos-
sible52
Stale or contaminat-
edHave 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—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
Connected to wrong
cylinderHave serviced by
Yamaha dealer—
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
UF2H71E0.book Page 93 Thursday, July 2, 2009 10:05 AM

Trouble recovery
94
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible52
Stale or contaminat-
edHave 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—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
Cracked, torn, or
damagedHave serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel injec-
tion systemFaulty or clogged in-
jectorsHave serviced by
Yamaha dealer—
Warning light or in-
dicator blinks or
comes onFuel level Empty Refill as soon as pos-
sible52
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer43
Engine over-
heatedJet intake clogged Clean
96
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer44 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
95
Watercraft slow or
loses powerShift lever Not completely shift-
ed into forward posi-
tionPush lever forward
until it stops 32
Watercraft
operation
modeLow RPM Mode acti-
vatedDeactivate Low RPM
Mode 34
Cavitation Jet intake clogged Clean 96
Impeller damaged or
wornHave serviced by
Yamaha dealer96
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine43
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
43
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—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer—
Air filter Clogged Have serviced by
Yamaha dealer—
Oil buildup Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2H71E0.book Page 95 Thursday, July 2, 2009 10:05 AM

Trouble recovery
99
(7) Securely install the seats in their original
positions.
If the fuse immediately blows again, the elec-
trical system may be defective. If this occurs,
have a Yamaha dealer service the watercraft.
EJU34715Towing the watercraft
WARNING
EWJ00811

The operator of the towing boat must
keep speed to a minimum and avoid traf-
fic or obstacles which could be a hazard
to the operator on the watercraft.

The towline should be long enough so
that the watercraft will not collide with
the towing boat when slowing down.
If the watercraft becomes inoperative in the
water, it can be towed to shore.
To tow the watercraft:
Use a towline that is three times the combined
length of the towing boat and the watercraft.
(1) Securely attach the towline to the bow
eye of the watercraft being towed.
(2) Sit astride the seat and hold on to the
handlebars in order to balance the water-
craft. NOTICE: The bow must be kept
up out of the water during towing, oth-
erwise water could flood the engine
compartment or water could flow backinto the engine, causing severe en-
gine damage.
[ECJ01330]
Tow the watercraft at 8 km/h (5 mph) or less.
NOTICE: Tow the watercraft at 8 km/h (5
mph) or less, otherwise water could flood
the engine compartment or water could
flow back into the engine, causing severe
engine damage.
[ECJ01321]
EJU36154
Submerged watercraft
If the watercraft is submerged or flooded with
water, drain the water from the engine com-
partment. Then, have a Yamaha dealer ser-
vice the watercraft as soon as possible.
If the watercraft was submerged:
(1) Remove the watercraft from the water
and drain the water from the storage
compartments. (See page 48 for informa-
tion on draining the storage compart-
ments.)
(2) Drain the water from the engine compart-
ment. (See page 55 for information on
draining the bilge water.)
(3) Have the watercraft serviced by a
Yamaha dealer as soon as possible.
NOTICE: Be sure to have a Yamaha
dealer inspect the watercraft. Other-
wise, serious engine damage could re-
sult.
[ECJ00791]
1Bow eye
UF2H71E0.book Page 99 Thursday, July 2, 2009 10:05 AM