Table of contents
Operating in weeded areas ............. 72
Post-operation care ...................... 72
Transporting ................................. 73
Maintenance and care ..................... 74
Storage ......................................... 74
Flushing the cooling system ............ 74
Lubrication ....................................... 75
Battery ............................................. 75
Cleaning the watercraft ................... 75
Maintenance and adjustments ..... 76
Owner’s/operator’s manual and
tool kit ........................................... 76
Periodic maintenance chart ............. 77
Checking the fuel system ................ 79
Engine oil and oil filter ..................... 79
Air filter element .............................. 79
Checking the jet thrust nozzle
angle ............................................ 79
Checking the shift cable .................. 80
Checking and adjusting the throttle
cable ............................................ 80
Cleaning and adjusting the spark
plugs ............................................ 82
Lubrication points ............................ 84
Checking the battery ....................... 86
Fuel injection system ....................... 87
Specifications .................................. 88
Specifications ................................ 88
Trouble recovery ............................. 89
Troubleshooting ........................... 89
Troubleshooting chart ...................... 89
Emergency procedures ................ 92
Cleaning the jet intake and
impeller ........................................ 92
Jumping the battery ......................... 93
Replacing the fuses ......................... 93
Towing the watercraft ...................... 95
Submerged watercraft ..................... 95
UF2H70E0.book Page 2 Thursday, January 15, 2009 10:49 AM
Trouble recovery
89
EJU34560
Troubleshooting
If you have any trouble with your watercraft, use this section to check for the possible cause.
If you cannot find the cause, or if the procedure for replacement or repair is not described in
this owner’s/operator’s manual, have a Yamaha dealer perform the necessary service.
EJU36982Troubleshooting chart
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
start (Starter motor
does not turn over)Yamaha Se-
curity SystemLock mode selected Select unlock mode
35
Engine shut-
off switchClip not in place Install clip
27
Fuse Burned out Replace fuse and
check wiring93
Battery Run down Recharge 86
Poor terminal con-
nectionsTighten as required
86
Terminal corroded Clean 75
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-
sible48
Stale or contaminat-
edHave serviced by
Yamaha dealer79
Fuel tank Water or dirt present Have serviced by
Yamaha dealer79
Spark plug Fouled or defective Clean or replace 82
Spark plug
capNot connected or
looseConnect properly
82
Connected to wrong
cylinderConnect properly
82
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
UF2H70E0.book Page 89 Thursday, January 15, 2009 10:49 AM
Trouble recovery
93
(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.
EJU34662Connecting 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. NOTICE: Never push the start
switch while the engine is running. Do
not operate the start switch for more
than 5 seconds, otherwise the battery
will be discharged and the engine will
not start. Also, the starter motor could
be damaged. If the engine does not
start in 5 seconds, release the start
switch, wait 15 seconds, and then try
again.
[ECJ00481]
EJU36991
Replacing the fuses
The fuses are located in the electrical box.
To replace a fuse:
(1) Remove the seats. (See page 25 for seat
removal and installation procedures.)
1Negative (–) jumper cable
2Positive (+) jumper cable
3Engine hanger
4Booster battery
1
342
UF2H70E0.book Page 93 Thursday, January 15, 2009 10:49 AM
Trouble recovery
94
(2) Remove the electrical box cover.
(3) Remove the cap on the electrical box.
(4) Replace the blown fuse with the spare
fuse of the correct amperage by using the
fuse puller on the reverse side of the cap.
WARNING! Do not use fuses of higher
amperage than recommended. Substi-
tution with a fuse that has an improper
rating can cause extensive electricalsystem damage and possible fire.
[EWJ00801]
(5) Install the cap.
(6) Install the electrical box cover.
(7) Install the seats.
1Electrical box cover
1
1Electrical box
2Spare fuse
3Fuse
4Cap
1Fuse puller
Fuse amperage:
Battery fuse:
30 A
Main relay drive fuse:
10 A
Electronic throttle valve fuse:
10 A
Security system fuse:
3 A
Main fuse:
20 A
1
2
4 3
UF2H70E0.book Page 94 Thursday, January 15, 2009 10:49 AM
Index
A
Air filter element ....................................... 79
Analog speedometer/tachometer ............. 40
Analog speedometer/tachometer and
indicator lights ....................................... 40
B
Battery ................................................ 54, 75
Battery, checking...................................... 86
Battery, jumping ....................................... 93
Beaching the watercraft ........................... 71
Beverage holder ....................................... 47
Bilge ......................................................... 54
Boarding alone ......................................... 66
Boarding and starting from a dock ........... 65
Boarding and starting in deep water ........ 65
Boarding and starting in shallow water .... 65
Boarding with passengers ........................ 66
Bow down................................................. 32
Bow eye ................................................... 33
Bow up ..................................................... 32
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 68
Check engine warning indicator ............... 45
Cleaning the watercraft ............................ 75
Cooling water pilot outlet .................... 29, 59
Craft Identification Number (CIN) ............... 1
Cruise assist............................................. 37
Cruising limitations ................................... 11
D
Digital speedometer ................................. 42
Docking the watercraft ............................. 71
E
Emergency procedures ............................ 92
Engine break-in ........................................ 60
Engine compartment ................................ 52
Engine oil ................................................. 49
Engine oil and oil filter .............................. 79
Engine oil level ......................................... 52
Engine overheat warning indicator ........... 44
Engine serial number ................................. 1
Engine shut-off cord (lanyard) .................. 58
Engine shut-off switch .............................. 27
Engine stop switch ................................... 27
Enjoy your watercraft responsibly ............ 19F
Fire extinguisher ....................................... 55
Flushing the cooling system ..................... 74
Front storage compartment ...................... 45
Fuel .......................................................... 48
Fuel and oil............................................... 48
Fuel injection system ................................ 87
Fuel level .................................................. 52
Fuel level meter ........................................ 43
Fuel level warning indicator ...................... 44
Fuel system, checking .............................. 79
Fuel tank .................................................. 79
Fuel tank filler cap .................................... 26
Fuses, replacing ....................................... 93
G
Getting to know your watercraft ............... 63
Glove compartment .................................. 46
H
Handgrip ................................................... 33
Hazard information ................................... 15
Hood ......................................................... 26
Hour meter/voltmeter ............................... 43
Hull and deck ........................................... 52
I
Identification numbers ................................ 1
J
Jet intake .................................................. 58
Jet intake and impeller, cleaning .............. 92
Jet thrust nozzle angle, checking ............. 79
Jumper cables, connecting ...................... 93
L
Labels, important ........................................ 3
Labels, other .............................................. 8
Labels, warning .......................................... 4
Launching the watercraft .......................... 60
Learning to operate your watercraft ......... 63
Leaving the watercraft .............................. 62
Left multifunction display and operation
buttons .................................................. 42
Limitations on who may operate the
watercraft .............................................. 10
“L-MODE” indicator light ........................... 42
Lubrication................................................ 75
Lubrication points ..................................... 84
UF2H70E0.book Page 1 Thursday, January 15, 2009 10:49 AM