4-12
E
EJU11000
Inspecting the oil injection
system
Check the oil injection system for leakage,
cracks, or malfunctions. If necessary, have a
Yamaha dealer repair the oil injection sys-
tem.
Check:
Oil tank for damage, cracks or leakage.
Oil tank for water or dirt.
Oil hose and joint for damage or cracks.
Oil filter for dirt.
Oil pump for leakage.
EJU11010
Oil tank
Check the oil tank for leakage or water in
the tank. If water is found in the oil injection
system or if the oil tank needs to be cleaned
have a Yamaha dealer service the water-
craft.
EJU20230
Oil filter
Have a Yamaha dealer check the oil filter
for dirt and clogs.
UF1G73.book Page 12 Tuesday, July 12, 2005 8:55 AM
4-18
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.
@
UF1G73.book Page 18 Tuesday, July 12, 2005 8:55 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 4-14
Incorrect heat range Replace 4-14
Gap incorrect Adjust 4-14
Spark plug cap Loose Connect properly 4-14
Cracked, torn, or dam-
agedReplace
—
Electrical
wiringLoose connection Tighten or connect
properly—
Fuel injection
systemFaulty or clogged injec-
torsHave serviced by
Yamaha dealer—
Warning light or
indicator blinksFuel level Empty Refill as soon as possi-
ble3-4
Engine oil level Empty Refill immediately 3-5
Oil filter clogged Have serviced by
Yamaha dealer—
Engine
overheatedJet intake clogged Clean 5-4
Water temperature
sensor is failedHave serviced by
Yamaha dealer2-12
Low battery
voltageBattery voltage low Charge 4-18
Battery terminal con-
nected wrongConnect properly
4-18
Exhaust gas
temperatureGas temperature is too
highCool down engine
2-13
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF1G73.book Page 2 Tuesday, July 12, 2005 8:55 AM
6-1
E
EJU11250
Index
2-stroke engine oil ................................... 3-3
A
Adjusting the fuel injection system ........ 4-20
Adjusting the Yamaha Adjustable
Sponson (YAS) ..................................... 4-22
B
Battery ............................................ 3-10, 4-5
Beaching the watercraft ........................ 3-32
Bilge ........................................................ 3-9
Bleeding the oil injection pump ............. 4-21
Boarding alone ...................................... 3-25
Boarding and starting in deep water ..... 3-25
Boarding with a passenger.................... 3-26
Bow down.............................................. 2-11
Bow up .................................................. 2-11
Builder’s plate.......................................... 1-2
C
Capsized watercraft .............................. 3-27
Check engine warning indicator ............ 2-18
Checking the trolling speed ................... 4-20
Cleaning and adjusting the
spark plugs ............................................ 4-14
Cleaning the jet intake and impeller ........ 5-4
Cleaning the watercraft ........................... 4-6
Connecting the jumper cables................. 5-7
Cooling water pilot outlet ................ 2-8, 3-15
Cruising limitations ................................ 1-10
D
Docking the watercraft .......................... 3-32
E
Emergency procedures ........................... 5-4
Engine break-in ..................................... 3-16
Engine compartment ............................... 3-7
Engine overheat warning indicator ........ 2-19
Engine overheat warning system .......... 2-12
Engine serial number .............................. 1-1
Engine shut-off cord (lanyard) ............... 3-14
Engine shut-off switch ............................. 2-7
Engine stop switch .................................. 2-7Enjoy your watercraft responsibly ......... 1-16
Exhaust temperature warning
indicator................................................. 2-19
Exhaust temperature warning
system ................................................... 2-13
F
Filling the fuel tank .................................. 3-4
Filling the oil tank .................................... 3-5
Fire extinguisher .................................... 3-11
Flushing the cooling system .................... 4-1
Front storage compartment ................... 2-20
Fuel and oil.............................................. 3-1
Fuel and oil systems ............................... 3-8
Fuel meter ............................................. 2-16
Fuel system ............................................. 4-3
Fuel tank ............................................... 4-11
Fuel tank filler cap ................................... 2-6
Fuel warning indicator ........................... 2-17
G
Gasohol ................................................... 3-3
Gasoline .................................................. 3-1
Getting to know your watercraft ............ 3-21
Glove compartment ............................... 2-21
H
Handgrip ................................................ 2-11
Hazard information ................................ 1-14
Hood........................................................ 2-6
Hour meter/Voltmeter ............................ 2-17
Hull and deck .......................................... 3-7
Hull Identification Number (HIN).............. 1-1
I
Identification numbers ............................. 1-1
Important labels ....................................... 1-3
Inspecting and adjusting the
throttle cable.......................................... 4-13
Inspecting the battery ............................ 4-18
Inspecting the fuel system ..................... 4-11
Inspecting the jet thrust nozzle angle .... 4-13
Inspecting the oil injection system ......... 4-12
J
Jet unit................................................... 3-14
Jumping the battery ................................. 5-6
UF1G73.book Page 1 Tuesday, July 12, 2005 8:55 AM
6-2
E
L
Label location .......................................... 1-3
Launching the watercraft ....................... 3-17
Learning to operate your watercraft ...... 3-21
Leaving the watercraft ........................... 3-20
Limitations on who may operate
the watercraft .......................................... 1-9
Location of main components ................. 2-1
Lubrication............................................... 4-3
Lubrication points .................................. 4-16
M
Maintenance and adjustments ................ 4-7
Model information.................................... 1-2
Multifunction information center ... 2-15, 3-15
O
Oil filter .................................................. 4-12
Oil tank .................................................. 4-12
Oil tank filler cap...................................... 2-6
Oil warning indicator.............................. 2-18
Operating your watercraft...................... 3-21
Operation .............................................. 3-16
Operation of controls and other
functions .................................................. 2-5
Operation requirements ........................ 1-11
Other labels ............................................. 1-7
Owner’s/Operator’s Manual and
tool kit ...................................................... 4-9
P
Periodic maintenance chart................... 4-10
Post-operation checks........................... 3-33
Pre-operation check list........................... 3-6
Pre-operation check points ..................... 3-7
Pre-operation checks .............................. 3-6
Primary Identification (PRI-ID)
number .................................................... 1-1
Q
Quick Shift Trim System (QSTS) .......... 3-13
Quick Shift Trim System (QSTS)
selector.................................................. 2-10
R
Recommended equipment .................... 1-13
Replacing the fuse ................................ 4-21
Riding watercraft with a passenger ....... 3-22Rough water operation .......................... 3-32
S
Safe boating rules ................................. 1-16
Safety information ................................... 1-9
Seat ......................................................... 2-5
Specifications ........................................ 4-23
Speedometer......................................... 2-16
Starting and boarding in shallow
water ..................................................... 3-24
Starting from a dock .............................. 3-24
Starting the engine ................................ 3-18
Starting the watercraft ........................... 3-23
Start switch.............................................. 2-8
Steering system .............................2-9, 3-12
Stern drain plug ....................................... 3-9
Stopping the engine .............................. 3-20
Stopping the watercraft ......................... 3-31
Storage.................................................... 4-1
Storage compartments .......................... 2-20
Submerged watercraft ............................. 5-9
Switches ................................................ 3-15
T
Tachometer ........................................... 2-16
Throttle .................................................. 3-12
Throttle lever ........................................... 2-7
Towing the watercraft .............................. 5-8
Transporting .......................................... 3-35
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-29
W
Warning labels ........................................ 1-4
Watercraft characteristics ...................... 1-14
Water separator ...................................... 3-8
Y
Yamaha Adjustable Sponson (YAS) ..... 2-21
Yamaha Engine Management System
(YEMS).................................................. 2-14
UF1G73.book Page 2 Tuesday, July 12, 2005 8:55 AM