4-4
E
EJU19652
Fuel system
WARNING@ GASOLINE AND ITS VAPORS ARE
HIGHLY FLAMMABLE AND EXPLOSIVE!
Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.
Stop engine before refueling.
Refuel in a well-ventilated area with
the watercraft in a horizontal position.
Do not stand or sit on the watercraft
while refueling in case of fire.
Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.
Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level reaches approx-
imately 50 mm (2 in) from the top of the
fuel tank. Fuel expands as it warms up
and could overflow if the fuel tank has
been overfilled. If temporarily leaving
the watercraft with a full fuel tank, do
not leave it in direct sunlight. Leave it
in a well-ventilated area with the water-
craft in a horizontal position.
Tighten the filler cap securely after
refueling.
If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.
If any gasoline spills onto your skin,
immediately wash with soap and
water. Change clothing if gasoline
spills on it.
@
Top off the fuel tank with fresh gasoline
and add fuel stabilizer and conditioner to the
fuel tank by following the manufacturer’s
instructions carefully.
E_F1Y-70.book Page 4 Friday, August 26, 2005 9:47 AM
5-2
E
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as possi-
ble3-4
Stale or contaminated Have serviced by
Yamaha dealer4-11
Fuel tank Water or dirt present Have serviced by
Yamaha dealer4-11
Spark plug Fouled or defective Replace 4-16
Incorrect heat range Replace 4-16
Gap incorrect Adjust 4-16
Spark plug cap Loose Connect properly 4-16
Cracked, torn, or dam-
agedReplace
—
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel injection
systemJet nozzle clogged Have serviced by
Yamaha dealer—
Warning light or
indicator blinksFuel level Empty Refill as soon as possi-
ble3-4
Engine over-
heatedJet intake clogged Clean
5-3
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer—
Wate rcr af t slow or
loses powerCavitation Jet intake clogged Clean 5-3
Impeller damaged or
wornHave serviced by
Yamaha dealer—
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine2-24
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
2-23
Spark plug Fouled or defective Replace 4-16
Incorrect heat range Replace 4-16
Gap incorrect Adjust 4-16
Spark plug
capsLoose Connect properly
4-16
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel Stale or contaminated Have serviced by
Yamaha dealer4-11
Air filter Clogged Clean or replace 4-14
Oil buildup Replace 4-14 TROUBLE POSSIBLE CAUSE REMEDY PAGE
E_F1Y-70.book Page 2 Friday, August 26, 2005 9:47 AM
6-1
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EJU01125
Index
A
Adjusting the fuel injection system ........ 4-23
Analog speedometer/tachometer .......... 2-17
Analog speedometer/tachometer
and indicator lights ................................ 2-17
Approval label of Emission control
certificate ................................................. 1-4
B
Battery ............................................ 3-10, 4-5
Beaching the watercraft ........................ 3-34
Beverage holder .................................... 2-27
Bilge ........................................................ 3-9
Boarding alone ...................................... 3-26
Boarding and starting in deep water ..... 3-26
Boarding with passengers ..................... 3-27
Bow down.............................................. 2-14
Bow up .................................................. 2-14
Builder’s plate.......................................... 1-3
C
Capsized watercraft .............................. 3-29
Changing the engine oil ........................ 4-12
Check engine warning indicator ............ 2-22
Checking the air filter element............... 4-14
Checking the trolling speed ................... 4-23
Cleaning and adjusting the
spark plugs ............................................ 4-16
Cleaning the jet intake and impeller ........ 5-3
Cleaning the watercraft ........................... 4-6
Connecting the jumper cables................. 5-6
Cooling water pilot outlet ................ 2-9, 3-16
Cruising limitations ................................ 1-13
D
Digital speedometer .............................. 2-20
Docking the watercraft .......................... 3-34
E
Emergency procedures ........................... 5-3
Emission control information
(For Canada only) ................................... 1-4
Engine break-in ..................................... 3-17
Engine compartment ............................... 3-6Engine oil ................................................ 3-3
Engine oil level ........................................ 3-7
Engine overheat warning indicator ........ 2-24
Engine serial number .............................. 1-2
Engine shut-off cord (lanyard) ............... 3-15
Engine shut-off switch ............................. 2-8
Engine stop switch .................................. 2-7
Enjoy your watercraft responsibly ......... 1-20
F
Filling the fuel tank .................................. 3-4
Fire extinguisher .................................... 3-11
Flushing the cooling system .................... 4-1
Front seat ................................................ 2-6
Front storage compartment ................... 2-25
Fuel and oil.............................................. 3-1
Fuel level ................................................. 3-6
Fuel meter ............................................. 2-21
Fuel system ............................................. 4-4
Fuel tank ............................................... 4-11
Fuel tank filler cap ................................... 2-7
Fuel warning indicator ........................... 2-22
G
Gasohol ................................................... 3-2
Gasoline .................................................. 3-1
Getting to know your watercraft ............ 3-22
Glove compartment ............................... 2-26
H
Handgrip ................................................ 2-15
Hazard information ................................ 1-17
Hood........................................................ 2-7
Hour meter/Voltmeter ............................ 2-21
Hull and deck .......................................... 3-6
Hull Identification Number (HIN).............. 1-2
I
Identification numbers ............................. 1-1
Important labels ....................................... 1-5
Inspecting and adjusting the
throttle cable.......................................... 4-15
Inspecting the battery ............................ 4-21
Inspecting the fuel system ..................... 4-11
Inspecting the jet thrust nozzle angle .... 4-15
Inspecting the shift cable ....................... 4-15
E_F1Y-70.book Page 1 Friday, August 26, 2005 9:47 AM
6-2
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J
Jet unit................................................... 3-15
Jumping the battery................................. 5-5
L
Label location .......................................... 1-5
Launching the watercraft ....................... 3-18
Learning to operate your watercraft ...... 3-22
Leaving the watercraft ........................... 3-21
Left multifunction display and
operation buttons .................................. 2-20
Limitations on who may operate
the watercraft ........................................ 1-12
Location of main components ................. 2-1
Lubrication............................................... 4-3
Lubrication points .................................. 4-18
M
Maintenance and adjustments ................ 4-7
Manufactured date label.......................... 1-4
Model information.................................... 1-3
Multifunction meter ....................... 2-16, 3-16
O
Oil pressure warning indicator............... 2-23
Operating your watercraft...................... 3-22
Operation .............................................. 3-17
Operation of controls and other
functions .................................................. 2-5
Operation requirements ........................ 1-14
Other labels ........................................... 1-10
Owner’s/Operator’s Manual and
tool kit ...................................................... 4-9
P
Periodic maintenance chart................... 4-10
Post-operation checks........................... 3-36
Pre-operation check list........................... 3-5
Pre-operation check points ..................... 3-6
Pre-operation checks .............................. 3-5
Primary Identification (PRI-ID)
number .................................................... 1-1
Q
Quick Shift Trim System (QSTS) .......... 3-14
Quick Shift Trim System (QSTS)
selector.................................................. 2-13R
Rear seat................................................. 2-5
Reboarding step (for FX Cruiser) .......... 2-15
Recommended equipment .................... 1-16
Replacing the fuse ................................ 4-24
Reverse on waterways .......................... 3-35
Riding watercraft with passengers ........ 3-23
Rough water operation .......................... 3-35
“RPM” indicator light.............................. 2-18
S
Safe boating rules ................................. 1-20
Safety information ................................. 1-12
Seat storage compartment .................... 2-26
Shift lever .............................................. 2-12
Shift lever and reverse gate .................. 3-13
Specifications ........................................ 4-25
“SPEED” indicator light ......................... 2-19
Starting and boarding in shallow
water ..................................................... 3-25
Starting from a dock .............................. 3-25
Starting the engine ................................ 3-19
Starting the watercraft ........................... 3-24
Start switch.............................................. 2-9
Steering system ...........................2-10, 3-12
Stern drain plug ..................................... 3-10
Stopping the engine .............................. 3-21
Stopping the watercraft ......................... 3-33
Storage.................................................... 4-1
Storage compartments .......................... 2-25
Submerged watercraft ............................. 5-8
Switches ................................................ 3-16
T
Throttle .................................................. 3-12
Throttle lever ........................................... 2-8
Tilt lever ................................................. 2-11
Towing the watercraft .............................. 5-7
Transporting .......................................... 3-38
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-31
E_F1Y-70.book Page 2 Friday, August 26, 2005 9:47 AM
6-3
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W
“WARNING” indicator light .................... 2-19
Warning labels ........................................ 1-6
Watercraft characteristics...................... 1-17
Water separator ...................................... 3-8
Water-skiing .......................................... 1-18
Watertight compartment ........................ 2-27
Y
Yamaha Engine Management
System (YEMS)..................................... 2-16
E_F1Y-70.book Page 3 Friday, August 26, 2005 9:47 AM