Page 7 of 98

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
Page 25 of 98

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
Page 39 of 98

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