Page 86 of 122

4-3
E
EJU20100
Lubrication
WARNING@ Do not spray flammable rust inhibitor
products on engine surfaces while the
engine is hot. The sprayed substance or
propellants could catch fire.
@
1. Remove the spark plugs and pour
approximately one tablespoon of oil into
each cylinder.
2. Grease the spark plug threads and rein-
stall the spark plugs.
3. Crank the engine within 3 seconds using
the start switch.
4. Lubricate all cables such as the throttle
and steering cables.
NOTE:@ Use a suitable marine grease applicator to
pressure lubricate the cables and purge out
any moisture between the inner and outer
cables.
@
5. Lubricate the areas of the watercraft
specified under Lubrication points on
page 4-15.
EJU20221
Fuel system
WARNINGGASOLINE AND ITS VAPORS ARE
HIGHLY FLAMMABLE AND EXPLOSIVE!
Do not smoke when refueling, and
keep away from sparks, flames, or
other sources of ignition.
Stop engine before refueling.
Refuel in a well-ventilated area with
the watercraft in a horizontal position.
Do not stand or sit on the watercraft
while refueling in case of fire.
UF1G72.book Page 3 Thursday, September 30, 2004 2:28 PM
Page 95 of 122
4-12
E
EJU18890
Inspecting the jet thrust nozzle
angle
Check for smooth operation of the handle-
bars and jet thrust nozzle.
Turn the handlebars as far as possible to
the right and left and check that the differ-
ence of distance A and B between the jet
thrust nozzle and the nozzle is within 5 mm.
If steering is stiff or misadjusted, have a
Yamaha dealer service it. Difference of A and B:
Maximum 5 mm (0.20 in)
EJU11040
Inspecting and adjusting the
throttle cable
Check that the throttle cable moves back
to the set position smoothly and that free
play is within specification.
1. Squeeze and release the throttle lever. If
the lever does not return smoothly, have
a Yamaha dealer service it.
2. Adjust free play a by loosening the lock-
nut 1 and turning the adjuster 2.
Throttle lever free play:
4–7 mm (0.16–0.28 in)
UF1G72.book Page 12 Thursday, September 30, 2004 2:28 PM
Page 98 of 122
4-15
E
EJU20113
Lubrication points
To keep moving parts sliding or rotating
smoothly, coat them with water-resistant
grease.
Recommended water resistant grease:
Yamaha Marine Grease/Yamaha
Grease A
Throttle cable (handlebar end)
Pull the throttle lever and remove the
seal1. Spray a rust inhibitor into the
outer cable. Refit the seal securely.
Steering cable (handlebar end)
Steering cable (nozzle end)
Nozzle pivot shaft
QSTS cable (nozzle end)
UF1G72.book Page 15 Thursday, September 30, 2004 2:28 PM
Page 119 of 122

6-2
E
J
Jet unit................................................... 3-14
Jumping the battery................................. 5-5
L
Label location .......................................... 1-3
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 .................................. 4-15
M
Maintenance and adjustments ................ 4-7
Manufactured date label.......................... 1-2
Multifunction information center ... 2-15, 3-15
O
Oil filter .................................................. 4-11
Oil tank .................................................. 4-11
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 ...................................................... 4-8
P
Periodic maintenance chart..................... 4-9
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 .................... 1-13Replacing the fuse ................................ 4-20
Riding watercraft with a passenger ....... 3-22
Rough water operation .......................... 3-32
S
Safe boating rules ................................. 1-16
Safety information ................................... 1-9
Seat ......................................................... 2-5
Specifications ........................................ 4-22
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 ............................. 5-8
Switches ................................................ 3-15
T
Tachometer ........................................... 2-16
Throttle .................................................. 3-12
Throttle lever ........................................... 2-7
Towing the watercraft .............................. 5-7
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
UF1G72.book Page 2 Thursday, September 30, 2004 2:28 PM