2012 YAMAHA FX SHO engine

Maintenance
96
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 —
Stern drain plugsCheck, replace —
BatteryCheck, charge —
Rubber couplingCheck —
Engine mountCheck —
UF2S70E0.book Page 96 Wednesday, December 7, 2011 3:56 PM

Maintenance
97
EJU36942Engine oil and oil filter
WARNING
EWJ00340
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
ECJ00991
Do not run the engine with too much or not
enough oil in the engine, otherwise the en-
gine could be damaged.
It is recommended to have a Yamaha dealer
change the engine oil and the engine oil filter.
However, if you choose to change the oil and
filter on your own, consult a Yamaha dealer.
Nuts and boltsCheck —
Air filter elementCheck —
Engine oilReplace 97
Oil filterReplace 97
Valve clearanceCheck, adjust — Item OperationInitial Thereafter every
Page 10
hours50 hours100
hours200
hours
6
months12
months12
months24
months
UF2S70E0.book Page 97 Wednesday, December 7, 2011 3:56 PM

Specifications
98
EJU34542
Specifications
Watercraft capacity:
Maximum people on board:
3 person
Maximum load capacity:
240 kg (530 lb)
Dimensions:
Length:
3560 mm (140.2 in)
Width:
1230 mm (48.4 in)
Height:
1230 mm (48.4 in)
Dry weight:
FX SHO 386 kg (851 lb)
FX Cruiser SHO 387 kg (853 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
154.5 kW@7500 r/min
Maximum fuel consumption:
63.7 L/h (16.8 US gal/h, 14.0 Imp.gal/h)
Cruising range at full throttle:
1.10 hour
Trolling speed:
1250 ±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:
8.6 : 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:
ElectricIgnition system:
T.C.I.
Spark plug:
LFR6A
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Battery capacity:
12 V, 19 Ah
Charging system:
Flywheel magneto
Drive unit:
Propulsion system:
Jet pump
Jet pump type:
Axial flow, single stage
Impeller rotation:
Counterclockwise
Jet thrust nozzle angle:
24.0+24.0 °
Jet thrust nozzle trim angle:
-10, -5, 0, 5, 10 °
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Minimum octane rating (PON):
86
Minimum octane rating (RON):
90
Recommended engine oil type SAE:
SAE 10W-30, 10W-40, 20W-40, 20W-50
Recommended engine oil grade API:
API SE,SF,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:
3.1 L (3.28 US qt, 2.73 Imp.qt)
Engine oil quantity without oil filter replacement:
3.0 L (3.17 US qt, 2.64 Imp.qt)
Engine oil total quantity:
4.3 L (4.55 US qt, 3.78 Imp.qt)
UF2S70E0.book Page 98 Wednesday, December 7, 2011 3:56 PM

Trouble recovery
99
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.
EJU42351Troubleshooting 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 wiring103
Battery Run down Recharge 89
Poor terminal con-
nectionsTighten as required
89
Terminal corroded Clean or replace 89
Starter motor Faulty Have serviced by
Yamaha dealer—
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 28
Fuel Fuel tank empty Refill as soon as pos-
sible58
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—
Throttle lever Faulty Have serviced by
Yamaha dealer—
UF2S70E0.book Page 99 Wednesday, December 7, 2011 3:56 PM

Trouble recovery
100
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible58
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
warningFuel tank empty Refill as soon as pos-
sible58
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer44
Engine over-
heat warningJet intake clogged Clean
102
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer45 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
101
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 35
Cavitation Jet intake clogged Clean 102
Impeller damaged or
wornHave serviced by
Yamaha dealer102
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine44
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
44
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—
Throttle lever Faulty Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2S70E0.book Page 101 Wednesday, December 7, 2011 3:56 PM

Trouble recovery
102
EJU34623
Emergency procedures EJU34634Cleaning the jet intake and impeller
WARNING
EWJ00782
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 watercraft
above trolling speed until they have been
removed.
[ECJ00653]
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 wa-
tercraft.
(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, support the bow
so that the handlebars are not bent or
damaged.
[ECJ00661]
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Trouble recovery
103
(2) Remove any weeds or debris from
around the jet intake, drive shaft, impel-
ler, jet pump housing, and jet thrust noz-
zle.
If debris is difficult to remove, consult a
Yamaha dealer.
EJU34641Jumping the battery
If the watercraft battery has run down, the en-
gine can be started using a 12-volt booster
battery and jumper cables.
EJU34663Connecting the jumper cables
WARNING
EWJ01250
To avoid battery explosion and serious
damage to the electrical system:
●Do not reverse the polarity of the jumper
cables when connecting to the batteries.
●Do not connect the negative (–) jumper
cable to the negative (–) terminal of the
watercraft battery.
●Do not touch the positive (+) jumper ca-
ble to the negative (–) jumper cable.
(1) Connect the positive (+) jumper cable to
the positive (+) battery terminals of both
batteries.
(2) Connect one end of the negative (–)
jumper cable to the negative (–) battery
terminal of the booster battery.(3) Connect the other end of the negative (–)
jumper cable to an engine hanger.
(4) Start the engine, and then disconnect the
jumper cables by reversing the steps
above. (See page 28 for information on
starting the engine.)
EJU36994Replacing the fuses
If a fuse is blown, replace it with the proper
fuse.
To replace a fuse:
(1) Remove the seats. (See page 49 for seat
removal and installation procedures.)
1Negative (–) jumper cable
2Booster battery
3Positive (+) jumper cable
4Engine hanger
1Good fuse
2Blown fuse
1
4
3
2
2 1
UF2S70E0.book Page 103 Wednesday, December 7, 2011 3:56 PM