Table of contents
Lubrication ....................................... 70
Battery ............................................. 70
Cleaning the watercraft ................... 70
Maintenance and adjustments ..... 71
Owner’s/operator’s manual and
tool kit ........................................... 71
Periodic maintenance chart ............. 72
Checking the fuel system ................ 74
Engine oil and oil filter ..................... 74
Air filter element .............................. 74
Checking the jet thrust nozzle
angle ............................................ 74
Checking the shift cable .................. 75
Checking the throttle lever ............... 75
Cleaning and adjusting the spark
plugs ............................................ 76
Lubrication points ............................ 77
Checking the battery ....................... 78
Fuel injection system ....................... 80
Specifications .................................. 81
Specifications ................................ 81
Trouble recovery ............................. 82
Troubleshooting ........................... 82
Troubleshooting chart ...................... 82
Emergency procedures ................ 85
Cleaning the jet intake and
impeller ........................................ 85
Jumping the battery ......................... 86
Replacing the fuses ......................... 86
Towing the watercraft ...................... 88
Submerged watercraft ..................... 88
UF2C70E0.book Page 2 Monday, November 3, 2008 10:16 AM
Safety information
18
Make sure that the rope is not looped
around anything.
After checking that the skier is ready and
that there is no traffic or other obstacles, ap-
ply enough throttle to raise the skier.
Make smooth, wide turns. The watercraft is
capable of very sharp turns, which could ex-
ceed the abilities of the skier. Keep the skier
at least 50 m (150 ft), about twice the dis-
tance of a standard ski rope, from any po-
tential hazard.
Be alert to the hazard of the ski rope handle
snapping back at the watercraft when the
skier falls or is unable to get up on the skis.
Towing heavy or bulky objects other than
skiers, such as another boat or watercraft,
can cause loss of steering control and cre-
ate a hazardous condition. If you must tow
another boat in an emergency situation, op-
erate slowly and cautiously.
EJU30970
Safe boating rules
Your Yamaha watercraft is legally considered
a powerboat. Operation of the watercraft must
be in accordance with the rules and regula-
tions governing the waterway on which it is
used.
UF2C70E0.book Page 18 Monday, November 3, 2008 10:16 AM
Features and functions
32
EJU34862Reboarding step
The reboarding step provides a handhold and
footstep for boarding the watercraft.
WARNING! Do not use the reboarding step
to lift the watercraft. The reboarding step
is not designed to support the watercraft’s
weight. If the reboarding step breaks, the
watercraft could fall, which could result in
severe injury.
[EWJ01211]
NOTICE
ECJ00742
Use the reboarding step only to board the
watercraft in the water. Do not use the re-
boarding step for any other purpose. The
watercraft can be damaged.
EJU34870Bow eye
The bow eye is located at the bow of the wa-
tercraft.The bow eye is used to attach a rope to the
watercraft when transporting, mooring, or
towing it in an emergency.
EJU34880Stern eyes
The stern eyes are located at the stern of the
watercraft.
The stern eyes are used to attach a rope to
the watercraft when transporting or mooring it.
EJU37400Yamaha Security System
The Yamaha Security System functions to
help prevent unauthorized use or theft of the
watercraft. The lock and unlock modes of the
security system are selected using the remote
control transmitter that is included with this
watercraft. The engine cannot be started if the
security system is in the lock mode. The en-
gine can only be started in the unlock mode.
1Reboarding step
1
1Bow eye
1Stern eye
1
1
UF2C70E0.book Page 32 Monday, November 3, 2008 10:16 AM
Operation
64
which can result in severe damage.
[ECJ00541]
(3) Start the engine and operate the water-
craft as straight as possible and above
planing speed for at least 2 minutes to
discharge any water remaining in the en-
gine compartment. (If the engine does
not start, see “Towing the watercraft” on
page 88 or “Submerged watercraft” on
page 88.) NOTICE: Do not operate the
engine at full throttle for at least 1
minute after the engine has been re-
started. Excessive water in the engine
compartment can splash into the en-
gine, which can result in severe dam-
age.
[ECJ00551]
EJU33251
Turning the watercraft
WARNING
EWJ00770
Do not release the throttle lever when
trying to steer away from objects—youneed throttle to steer. A collision could
result in severe injury or death.
When operating at higher speeds, make
gradual turns or slow down before turn-
ing. Sharp high-speed turns may cause
the watercraft to slide sideways or spin,
throwing the operator and passengers
overboard, which could cause an injury.
Steering control depends on the combination
of handlebar position and the amount of throt-
tle.
Water sucked in through the intake grate is
pressurized by the impeller in the jet pump. As
the pressurized water is expelled from the
pump through the jet thrust nozzle, it creates
thrust to move and steer the watercraft. The
higher the engine speed, the more thrust pro-
duced.
The amount of jet thrust, in addition to the po-
sition of the handlebars, determines how
sharply you turn.
A. More throttle produces higher thrust, so
the watercraft will turn more sharply.
UF2C70E0.book Page 64 Monday, November 3, 2008 10:16 AM
Trouble recovery
88
EJU34711Towing the watercraft
WARNING
EWJ00811
The operator of the towing boat must
keep speed to a minimum and avoid traf-
fic or obstacles which could be a hazard
to the operator on the watercraft.
The towline should be long enough so
that the watercraft will not collide with
the towing boat when slowing down.
If the watercraft becomes inoperative in the
water, it can be towed to shore.
When the watercraft is towed using a towline,
the operator should hold onto the handlebars
and ride the watercraft in order to balance it.
Use a towline that is three times the combined
length of the towing boat and the watercraft.
Tow the watercraft at 5 mph (8 km/h) or less.
The bow must be kept up out of the water dur-
ing towing to prevent water from entering the
engine compartment.
EJU36151Submerged watercraft
If the watercraft is submerged or flooded with
water, follow the procedure below and consult
a Yamaha dealer as soon as possible. Failure
to do so could result in serious engine dam-
age.
(1) Beach the watercraft and remove the
stern drain plugs to drain the water fromthe engine compartment. (See page 49
for more information.)
Remove the storage compartment drain
plugs to drain the water from the storage
compartments.
(2) Install the stern drain plugs and storage
compartment drain plugs.
(3) Have the watercraft inspected by a
Yamaha dealer as soon as possible.
NOTICE: Be sure to have a Yamaha
dealer inspect the watercraft. Other-
wise, serious engine damage could re-
sult.
[ECJ00791]
1Bow eye
1
UF2C70E0.book Page 88 Monday, November 3, 2008 10:16 AM
Index
Operating your watercraft......................... 58
Operation ................................................. 55
Operation of controls and other
functions ............................................... 24
Operation requirements ........................... 12
Owner’s/operator’s manual and tool kit .... 71
P
Periodic maintenance chart...................... 72
Post-operation care .................................. 67
Pre-operation check list............................ 45
Pre-operation check points ...................... 47
Pre-operation checks ............................... 45
Primary Identification (PRI-ID) number ...... 1
Q
Quick Shift Trim System (QSTS) ............. 52
Quick Shift Trim System (QSTS)
selector ................................................. 30
R
Reboarding grip........................................ 31
Reboarding step ....................................... 32
Recommended equipment ....................... 14
Remote control transmitter ....................... 25
Reverse on waterways ............................. 66
Riding with passengers ............................ 59
S
Safe boating rules .................................... 18
Seats ........................................................ 24
Shift cable, checking ................................ 75
Shift lever ................................................. 29
Shift lever and reverse gate ..................... 51
Shifting ..................................................... 57
Spark plugs, cleaning and adjusting ........ 76
Speedometer............................................ 35
Start switch............................................... 27
Starting the engine ................................... 55
Starting the watercraft .............................. 59
Steering system ................................. 28, 51
Stern drain plugs ...................................... 49
Stern eyes ................................................ 32
Stopping the engine ................................. 56
Stopping the watercraft ............................ 65
Storage..................................................... 69
Storage compartments ............................. 39
Submerged watercraft .............................. 88
Switches ................................................... 53T
Tachometer .............................................. 35
Telescopic steering system ...................... 29
Throttle lever ...................................... 27, 50
Throttle lever, checking ............................ 75
Towing the watercraft ............................... 88
Transporting ............................................. 68
Trolling speed, checking .......................... 80
Troubleshooting ....................................... 82
Troubleshooting chart .............................. 82
Turning the watercraft .............................. 64
W
Water separator ....................................... 48
Watercraft characteristics ......................... 15
Water-skiing ............................................. 17
Watertight compartment ........................... 41
Y
Yamaha Security System ......................... 32
Yamaha Security System settings ........... 33
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