2012 YAMAHA FZS engine

Maintenance
84
EJU33768
Maintenance
Periodic checks and lubrication will keep your
watercraft in the safest and most efficient con-
dition possible. Therefore, make sure to carry
out the periodic maintenance. Safety is an ob-
ligation of the watercraft owner. Proper main-
tenance must be carried out to keep the
exhaust emission and sound levels within the
regulated limits. The most important points of
watercraft inspection and lubrication are ex-
plained on the following pages.
See a Yamaha dealer for genuine Yamaha re-
placement parts and optional accessories de-
signed for your watercraft.
Remember, failures that are the result of the
installation of parts or accessories which are
not qualitatively equivalent to genuine
Yamaha parts are not covered by the limited
warranty.
Maintenance, replacement, or repair of the
emission control devices and system may
be performed by any marine SI engine re-
pair establishment or individual. Warranty
repair, however, must be performed at an
authorized Yamaha marine dealership.
WARNING
EWJ00311
Be sure to turn off the engine when you
perform maintenance unless otherwise
specified. If you are not familiar with ma-
chine servicing, this work should be done
by a Yamaha dealer or other qualified me-
chanic.
EJU33802Tool kit
A tool kit is included with this watercraft. Place
the tool kit in a waterproof bag and alwayscarry it with you whenever you use the water-
craft.
EJU42020Removing and installing the engine
cover
The engine cover is removable.
To remove the engine cover:
(1) Remove the seats. (See page 41 for seat
removal and installation procedures.)
(2) Remove the engine cover screws.
1Tool bag
2Screwdriver
3Garden hose adapter
410/12 mm box wrench
5Pliers
6Open-end wrench
1Engine cover screw
1
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Maintenance
85
(3) Lift up the engine cover to remove it.
To install the engine cover:
(1) Place the engine cover in its original posi-
tion, and then push it down.
(2) Install the engine cover screws, and then
tighten them to the specified torque.
(3) Securely install the seats in their original
positions.
1Engine cover
Tightening torque:
Engine cover screw:
4.5 Nm (0.46 kgf-m, 3.3 ft-lb)
1
UF2C73E0.book Page 85 Monday, June 13, 2011 8:52 AM

Maintenance
86
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—
UF2C73E0.book Page 86 Monday, June 13, 2011 8:52 AM

Maintenance
87
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.
Engine mountCheck—
Nuts and boltsCheck—
Air filter elementCheck—
Engine oilReplace 87
Oil filterReplace 87
Valve clearanceCheck, adjust— Item OperationInitial Thereafter every
Page 10
hours50 hours100
hours200
hours
6
months12
months12
months24
months
UF2C73E0.book Page 87 Monday, June 13, 2011 8:52 AM

Specifications
88
EJU34542
Specifications
Watercraft capacity:
Maximum people on board:
3 person
Maximum load capacity:
240 kg (530 lb)
Dimensions:
Length:
3370 mm (132.7 in)
Width:
1230 mm (48.4 in)
Height:
1160 mm (45.7 in)
Dry weight:
369 kg (813 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
154.5 kW@7500 r/min
Maximum fuel consumption:
67.3 L/h (17.8 US gal/h, 14.8 Imp.gal/h)
Cruising range at full throttle:
1.04 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:
Electric
Ignition 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)
UF2C73E0.book Page 88 Monday, June 13, 2011 8:52 AM

Trouble recovery
89
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 wiring93
Battery Run down Recharge 79
Poor terminal con-
nectionsTighten as required
79
Terminal corroded Clean or replace 79
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-
sible49
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—
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Trouble recovery
90
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible49
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-
sible49
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer38
Engine over-
heatedJet intake clogged Clean
92
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer39 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
91
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 92
Impeller damaged or
wornHave serviced by
Yamaha dealer92
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine39
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
38
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
UF2C73E0.book Page 91 Monday, June 13, 2011 8:52 AM