2003 YAMAHA FX fuse

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4
EJU01086
MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-4
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
Changing the engine oil ....................... 4-11
Checking the air filter element ............. 4-13
Inspecting the jet thrust
nozzle angle ......................................... 4-14
Inspecting the shift cable ..................... 4-14
Inspecting and adjusting the
throttle cable ......................................... 4-14
Inspecting the QSTS mechanism ....... 4-15
Cleaning and adjusting the
spark plugs ........................................... 4-16
Lubrication points ................................. 4-18
Inspecting the battery .......................... 4-21
Adjusting the fuel injection system ...... 4-23
Replacing the fuse ............................... 4-24
Specifications ........................................ 4-25
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4-24
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Replacing the fuse
The fuse is in the electrical box 1.
To replace the fuse:
1. Remove the cap 2.
2. Replace the fuse 4 with the spare
fuse5 of the correct amperage by using
the special tool 3 on the reverse side of
the cap.
WARNING@ Do not use fuses of higher amperage
than those recommended. Substitution
of a fuse of improper rating can cause
extensive electrical system damage and
possible fire.
Fuse amperage:
20 A (main)
3 A (meter)
3 A (bilge pump)
UF1B71.book Page 24 Tuesday, November 12, 2002 4:17 PM

5-1
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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.
EJU01367
Troubleshooting chart
TBC-F0P7ETROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
startStarter motor does not turn over
Engine shut-
off switchClip not in place Install clip
2-8
Fuse Burned out Replace the fuse and
check wiring4-24
Battery Run down Recharge 4-21
Poor terminal connec-
tionsTighten as required
4-21
Terminal corroded Clean 4-5
Starter motor Faulty Have serviced by
Yamaha dealer—
Starter motor turns over
Throttle lever Squeezed Release 2-8
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 4-16
Spark plug cap Not connected or loose Connect properly 4-16
Connected to wrong
cylinderConnect properly
4-16
Fuel injection
systemFuel pump faulty Have serviced by
Yamaha dealer—
UF1B71.book Page 1 Tuesday, November 12, 2002 4:17 PM

6-2
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L
Label location .......................................... 1-4
Launching the watercraft ....................... 3-17
Learning to operate your watercraft ...... 3-21
Leaving the watercraft ........................... 3-20
Limitations on who may operate
the watercraft ........................................ 1-11
Location of main components ................. 2-1
Lubrication............................................... 4-3
Lubrication points .................................. 4-18
M
Maintenance and adjustments ................ 4-7
Manufactured date label.......................... 1-3
Multifunction meter ....................... 2-15, 3-15
O
Oil pressure warning indicator............... 2-18
Operating your watercraft...................... 3-21
Operation .............................................. 3-16
Operation of controls and other
functions .................................................. 2-5
Operation requirements ........................ 1-13
Other labels ............................................. 1-9
Owner’s/Operator’s Manual and
tool kit ...................................................... 4-8
P
Periodic maintenance chart..................... 4-9
Post-operation checks........................... 3-34
Pre-operation check list........................... 3-5
Pre-operation check points ..................... 3-6
Pre-operation checks .............................. 3-5
Primary Identification (PRI-ID)
number .................................................... 1-1
Q
Quick Shift Trim System (QSTS)
selector.................................................. 2-13
R
Rear seat................................................. 2-5
Recommended equipment .................... 1-15
Replacing the fuse ................................ 4-24
Reverse on waterways .......................... 3-33
Riding watercraft with passengers ........ 3-22
Rough water operation .......................... 3-33S
Safe boating rules ................................. 1-19
Safety information ................................. 1-11
Seat storage compartment .................... 2-21
Shift lever .............................................. 2-12
Shift lever and reverse gate .................. 3-13
Specifications ........................................ 4-25
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.............................................. 2-9
Steering system ...........................2-10, 3-12
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 ........................................... 2-8
Tilt lever ................................................. 2-11
Towing the watercraft .............................. 5-7
Transporting .......................................... 3-36
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................. 5-1
Turning the watercraft ........................... 3-29
W
Warning labels ........................................ 1-5
Watercraft characteristics ...................... 1-16
Water separator ...................................... 3-8
Water-skiing .......................................... 1-17
Y
Yamaha Engine Management
System (YEMS) ..................................... 2-15
UF1B71.book Page 2 Tuesday, November 12, 2002 4:17 PM