4-12
E
CAUTION:@ If oil is leaking or the oil pressure warn-
ing indicator comes on when the engine
is running, immediately turn the engine
off and have a Yamaha dealer check the
watercraft. Continuing to operate the
engine under such conditions could
cause severe engine damage.
@
UF1K70.book Page 12 Friday, November 19, 2004 2:42 PM
4-19
E
EJU19710
Inspecting the battery
Check the level of the battery electrolyte
and make sure that the negative and posi-
tive leads are securely tightened.
WARNING@ Battery electrolyte is poisonous and
dangerous, causing severe burns, etc.
Electrolyte contains sulfuric acid.
Avoid contact with skin, eyes, or cloth-
ing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg, or vegetable oil. Call phy-
sician immediately.
Eyes: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases.
Keep sparks, flame, cigarettes, etc.,
well away. If using or charging the bat-
tery in an enclosed space, make sure
that it is well ventilated. Always shield
your eyes when working near batter-
ies.
KEEP OUT OF THE REACH OF CHIL-
DREN.
Be sure to connect the breather hose
to the battery. Fire or explosion could
result if the breather hose is damaged,
obstructed, or not connected properly.
@
CAUTION:@ Be careful not to place the battery on
its side.
Be sure to remove the battery from the
battery compartment when adding
electrolyte or charging the battery.
@
UF1K70.book Page 19 Friday, November 19, 2004 2:42 PM
5-2
E
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as possi-
ble3-4
Stale or contaminated Have serviced by
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by
Yamaha dealer4-10
Spark plug Fouled or defective Replace 4-15
Incorrect heat range Replace 4-15
Gap incorrect Adjust 4-15
Spark plug cap Loose Connect properly 4-15
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 powerYamaha
Security
System
(VX110
Deluxe)Low-RPM mode
selectedSelect normal mode
2-15
Cavitation 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 engine2-22
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
2-21
Spark plug Fouled or defective Replace 4-15
Incorrect heat range Replace 4-15
Gap incorrect Adjust 4-15
Spark plug
capsLoose Connect properly
4-15
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel Stale or contaminated Have serviced by
Yamaha dealer4-10
Air filter Clogged or oil buildup Have serviced by
Yamaha dealer4-13 TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF1K70.book Page 2 Friday, November 19, 2004 2:42 PM
6-1
E
EJU11250
Index
A
Adjusting the fuel injection system ........ 4-21
Approval label of emission control
certificate ................................................. 1-3
B
Battery ............................................ 3-10, 4-5
Beaching the watercraft ........................ 3-32
Bilge ........................................................ 3-9
Boarding alone ...................................... 3-24
Boarding and starting in deep water ..... 3-24
Boarding with passengers ..................... 3-25
C
Capsized watercraft .............................. 3-27
Changing the engine oil ........................ 4-11
Check engine warning indicator ............ 2-20
Checking the air filter element............... 4-13
Checking the trolling speed ................... 4-21
Cleaning and adjusting the
spark plugs ............................................ 4-15
Cleaning the jet intake and impeller ........ 5-3
Cleaning the watercraft ........................... 4-6
Connecting the jumper cables................. 5-6
Cooling water pilot outlet .............. 2-11, 3-14
Cruising limitations ................................ 1-12
D
Docking the watercraft .......................... 3-32
E
Emergency procedures ........................... 5-3
Emission control information
(For Canada only) ................................... 1-3
Engine break-in ..................................... 3-15
Engine compartment ............................... 3-6
Engine oil ................................................ 3-3
Engine oil level ........................................ 3-7
Engine overheat warning indicator ........ 2-22
Engine serial number .............................. 1-2
Engine shut-off cord (lanyard) ............... 3-13
Engine shut-off switch ............................. 2-9
Engine stop switch .................................. 2-9
Enjoy your watercraft responsibly ......... 1-20F
Filling the fuel tank .................................. 3-4
Fire extinguisher .................................... 3-11
Flushing the cooling system .................... 4-1
Front storage compartment ................... 2-24
Fuel and oil.............................................. 3-1
Fuel level ................................................. 3-6
Fuel meter ............................................. 2-19
Fuel system ............................................. 4-4
Fuel tank ............................................... 4-10
Fuel tank filler cap ................................... 2-6
Fuel warning indicator ........................... 2-21
G
Gasohol ................................................... 3-2
Gasoline .................................................. 3-1
Getting to know your watercraft ............ 3-20
Glove compartment ............................... 2-25
H
Handgrip ................................................ 2-14
Hazard information ................................ 1-16
Hood........................................................ 2-6
Hour meter/Voltmeter ............................ 2-20
Hull and deck .......................................... 3-6
Hull Identification Number (HIN).............. 1-2
I
Identification numbers ............................. 1-1
Important labels ....................................... 1-4
Inspecting and adjusting the throttle
cable...................................................... 4-14
Inspecting the battery ............................ 4-19
Inspecting the fuel system ..................... 4-10
Inspecting the jet thrust nozzle angle .... 4-13
Inspecting the shift cable
(for VX110 Deluxe) ................................ 4-13
J
Jet unit................................................... 3-13
Jumping the battery ................................. 5-5
L
Label location .......................................... 1-4
Launching the watercraft ...................... 3-16
Learning to operate your watercraft ...... 3-20
Leaving the watercraft ........................... 3-19
UF1K70.book Page 1 Friday, November 19, 2004 2:42 PM
6-2
E
Limitations on who may operate the
watercraft .............................................. 1-11
“L-MODE” indicator light
(for VX110 Deluxe)................................ 2-23
Location of main components ................. 2-1
Lubrication............................................... 4-3
Lubrication points .................................. 4-17
M
Maintenance and adjustments ................ 4-7
Manufactured date label.......................... 1-3
Multifunction meter ....................... 2-18, 3-14
O
Oil pressure warning indicator............... 2-21
Operating your watercraft...................... 3-20
Operation .............................................. 3-15
Operation of controls and other
functions .................................................. 2-5
Operation requirements ........................ 1-13
Other labels ............................................. 1-9
Owner’s/Operator’s Manual and
tool kit ...................................................... 4-8
P
Periodic maintenance chart..................... 4-9
Post-operation checks........................... 3-34
Pre-operation check list........................... 3-5
Pre-operation check points ..................... 3-6
Pre-operation checks .............................. 3-5
Primary Identification (PRI-ID) number ... 1-1
R
Recommended equipment .................... 1-15
Remote control transmitter
(for VX110 Deluxe).................................. 2-7
Replacing the fuses............................... 4-22
Reverse on waterways
(for VX110 Deluxe)................................ 3-33
Riding watercraft with passengers ........ 3-21
Rough water operation .......................... 3-33
S
Safe boating rules ................................. 1-20
Safety information ................................. 1-11
Seat ......................................................... 2-5
“SECURITY” indicator light
(for VX110 Deluxe)................................ 2-23Selecting the normal mode/low-RPM
mode (for VX110 Deluxe) ...................... 2-17
Shift lever and reverse gate
(for VX110 Deluxe) ................................ 3-12
Shift lever (for VX110 Deluxe) ............... 2-13
Specifications ........................................ 4-23
Speedometer......................................... 2-19
Starting and boarding in shallow
water ..................................................... 3-23
Starting from a dock .............................. 3-23
Starting the engine ................................ 3-17
Starting the watercraft ........................... 3-22
Start switch............................................ 2-10
Steering system ...........................2-12, 3-12
Stern drain plug ....................................... 3-9
Stopping the engine .............................. 3-19
Stopping the watercraft ......................... 3-31
Storage.................................................... 4-1
Storage compartments .......................... 2-24
Submerged watercraft ............................. 5-8
Switches ................................................ 3-14
T
Tachometer ........................................... 2-19
Throttle .................................................. 3-11
Throttle lever ......................................... 2-10
Towing the watercraft .............................. 5-7
Transporting .......................................... 3-36
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-29
W
Warning labels ........................................ 1-5
Watercraft characteristics ...................... 1-16
Water separator ...................................... 3-8
Water-skiing .......................................... 1-18
Y
Yamaha Engine Management
System (YEMS) ..................................... 2-15
Yamaha Security System
(for VX110 Deluxe) ................................ 2-15
Yamaha Security System lock and
unlock modes (for VX110 Deluxe) ........ 2-16
Yamaha Security System/Low-RPM
mode (for VX110 Deluxe) ...................... 2-15
UF1K70.book Page 2 Friday, November 19, 2004 2:42 PM