E
4
EJU10860
MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-3
Battery .................................................... 4-5
Cleaning the watercraft .......................... 4-6
Maintenance and adjustments .............. 4-7
Owner’s/Operator’s Manual and
tool kit ..................................................... 4-8
Periodic maintenance chart ................... 4-9
Inspecting the fuel system ................... 4-10
Inspecting the oil injection system ....... 4-11
Inspecting the jet thrust nozzle
angle ..................................................... 4-12
Inspecting and adjusting the
throttle cable ......................................... 4-12
Inspecting the QSTS mechanism ....... 4-13
Cleaning and adjusting the
spark plugs ........................................... 4-14
Lubrication points ................................. 4-15
Inspecting the battery .......................... 4-18
Adjusting the fuel injection system ...... 4-20
Replacing the fuse ............................... 4-21
Bleeding the oil injection pump ............ 4-21
Adjusting the Yamaha Adjustable
Sponson (Y.A.S.) ................................. 4-22
Specifications ........................................ 4-23
UF1G70.book Page 1 Wednesday, December 18, 2002 3:35 PM
5-1
E
EJU11160
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.
EJU13670
Troubleshooting chart
TBC-*** TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
startStarter motor does not turn over
Engine shut-
off switchClip not in place Install clip
2-7
Fuse Burned out Replace the fuse and
check wiring4-21
Battery Run down Recharge 4-18
Poor terminal connec-
tionsTighten as required
4-18
Terminal corroded Clean—
Starter motor Faulty Have serviced by
Yamaha dealer—
War ning
systemOverheat mode Cool down engine
2-12
Starter motor turns over
Throttle lever Squeezed Release 2-7
Fuel Empty Refill as soon as possi-
ble3-4
Stale or contaminated Have serviced by
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by
Yamaha dealer4-10
Spark plug Fouled or defective Clean or replace 4-14
Spark plug cap Not connected or loose Connect properly 4-14
Crankcase Filled with water Crank engine with plug
out until clean5-8
Fuel injection
systemFuel pump faulty Have serviced by
Yamaha dealer—
Water
temperature
sensorFailed Have serviced by
Yamaha dealer 2-12
UF1G70.book Page 1 Wednesday, December 18, 2002 3:35 PM
6-2
E
J
Jet unit................................................... 3-12
Jumping the battery................................. 5-5
L
Label location .......................................... 1-3
Learning to operate your watercraft ...... 3-19
Leaving the watercraft ........................... 3-18
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, 3-13
O
Oil filter .................................................. 4-11
Oil tank .................................................. 4-11
Oil tank filler cap...................................... 2-6
Oil warning indicator.............................. 2-18
Operating your watercraft...................... 3-19
Operation .............................................. 3-14
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........................... 3-31
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)
selector.................................................. 2-10R
Recommended equipment .................... 1-13
Replacing the fuse ................................ 4-21
Riding watercraft with a passenger ....... 3-20
Rough water operation .......................... 3-30
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 ........................................ 3-22
Starting from a dock .............................. 3-22
Starting the engine ................................ 3-16
Starting the watercraft ........................... 3-21
Start switch.............................................. 2-8
Steering system .............................2-9, 3-11
Stopping the engine .............................. 3-18
Stopping the watercraft ......................... 3-29
Storage.................................................... 4-1
Storage compartments .......................... 2-20
Submerged watercraft ............................. 5-8
Switches ................................................ 3-13
T
Tachometer ........................................... 2-16
Throttle .................................................. 3-11
Throttle lever ........................................... 2-7
Towing the watercraft .............................. 5-7
Transporting .......................................... 3-33
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-27
W
Warning labels ........................................ 1-4
Watercraft characteristics ...................... 1-14
Water separator ...................................... 3-8
Y
Yamaha Adjustable Sponson
(Y.A.S.).................................................. 2-21
Yamaha Engine Management
System (YEMS) ..................................... 2-14
UF1G70.book Page 2 Wednesday, December 18, 2002 3:35 PM