Table of contents
Battery ............................................. 61
Cleaning the watercraft ................... 62
Maintenance and adjustments ..... 63
Owner’s/operator’s manual and
tool kit ........................................... 63
Periodic maintenance chart ............. 65
Checking the fuel system ................ 66
Checking the oil injection system .... 66
Checking the jet thrust
nozzle angle ................................. 66
Checking and adjusting the throttle
cable ............................................ 67
Cleaning and adjusting the
spark plugs ................................... 67
Lubrication points ............................ 68
Checking the battery ....................... 69
Fuel injection system ....................... 71
Bleeding the oil pump ...................... 71
Adjusting the Yamaha Adjustable
Sponsons (YAS) .......................... 71
Specifications .................................. 72
Specifications ................................ 72
Trouble recovery ............................. 73
Troubleshooting ........................... 73
Troubleshooting chart ...................... 73
Emergency procedures ................ 76
Cleaning the jet intake and
impeller ........................................ 76
Jumping the battery ......................... 77
Replacing the fuses ......................... 78
Towing the watercraft ...................... 78
Submerged watercraft ..................... 79
UF1G74E0.book Page 2 Monday, July 31, 2006 10:10 AM
Trouble recovery
77
CAUTION:
ECJ00660
Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches.
Always turn the watercraft over onto its
port (left) side.
When turning the watercraft on its side,
support the bow so that the handlebars
are not bent or damaged.
(2) Remove any weeds or debris from
around the drive shaft, impeller, jet pump
housing, and jet thrust nozzle.
If debris is difficult to remove, consult a
Yamaha dealer.
CAUTION:
ECJ00670
Always avoid operating your watercraft in
areas where weed growth is thick. If travel-
ing in weeded areas is unavoidable, oper-
ate the engine alternately at partial throttle
and full throttle. Weeds tend to accumu-
late more at a steady speed and at trolling
speed. If weeds clog the jet intake or im-
peller area and cause cavitation, follow the
cleaning procedure above.
EJU34640Jumping the battery
If the watercraft battery has run down, the en-
gine can be started using a 12-volt booster
battery and jumper cables.
WARNING
EWJ00790
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes, or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water or
milk. Follow with milk of magnesia, beatenegg, or vegetable oil. Call a physician im-
mediately.
Eyes: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flames, cigarettes, etc., well away.
If using or charging the battery in an en-
closed space, make sure that it is well ven-
tilated. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.
EJU34650Connecting the jumper cables
(1) Connect the positive (+) jumper cable to
the positive (+) battery terminals of both
batteries.
(2) Connect one end of the negative (–)
jumper cable to the negative (–) battery
terminal of the booster battery.
(3) Connect the other end of the negative (–)
jumper cable to an unpainted bolt on the
cylinder head.
CAUTION:
ECJ00680
Do not connect the end of the negative (–)
jumper cable to the negative (–) battery
terminal of the watercraft battery! Make
sure that all connections are secure and
correct before attempting to start the en-
1Positive (+) jumper cable
2Negative (–) jumper cable
3Booster battery
UF1G74E0.book Page 77 Monday, July 31, 2006 10:10 AM
Trouble recovery
78
gine. Any wrong connection could dam-
age the electrical system.
(4) Start the engine, and then disconnect the
jumper cables by reversing the steps
above.
CAUTION:
ECJ00690
Never push the start switch while the en-
gine is running.
Do not operate the start switch for more
than 5 seconds, otherwise the battery
will be discharged and the engine will
not start. Also, the starter motor could
be damaged. If the engine does not start
in 5 seconds, release the start switch,
wait 15 seconds, and then try again.
EJU34680Replacing the fuses
The fuses are located in the electrical box.
To replace a fuse:
(1) Remove the cap on the electrical box.
(2) Replace the blown fuse with the spare
fuse of the correct amperage by using the
fuse puller on the reverse side of the cap.
WARNING
EWJ00800
Do not use fuses of higher amperage than
recommended. Substitution with a fuse
that has an improper rating can cause ex-
tensive electrical system damage and pos-
sible fire.
EJU34710Towing the watercraft
If the watercraft becomes inoperative in the
water, it can be towed to shore.
If the watercraft must be towed in an emer-
gency using a towline, the operator should
ride the watercraft, holding onto the handle-
bars.
CAUTION:
ECJ00720
Tow the watercraft at 5 mph (8 km/h) or
less, otherwise water could enter the en-
gine through the exhaust passages or
through the air intake and flood the en-
gine compartment if it is towed too fast.
Tow the watercraft using the bow eye
only.
1Electrical box
2Cap
3Fuse puller
4Fuse
5Spare fuse
Fuse amperage:
Main fuse:
20 A
Meter fuse:
3 A
Bilge pump fuse:
3 A
UF1G74E0.book Page 78 Monday, July 31, 2006 10:10 AM
Index
2-stroke engine oil .................................... 36
A
Adjusting the Yamaha Adjustable
Sponsons (YAS) ................................... 71
B
Battery ................................................ 40, 61
Battery, checking...................................... 69
Battery, jumping ....................................... 77
Beaching the watercraft ........................... 57
Bilge ......................................................... 39
Boarding alone ......................................... 51
Boarding and starting from a dock ........... 51
Boarding and starting in deep water ........ 51
Boarding and starting in shallow water .... 50
Boarding with a passenger....................... 52
Bow down................................................. 26
Bow eye ................................................... 26
Bow up ..................................................... 26
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 54
Check engine warning indicator ............... 31
Cleaning the watercraft ............................ 62
Cooling water pilot outlets .................. 23, 44
Cruising limitations ................................... 10
D
Docking the watercraft ............................. 57
E
Emergency procedures ............................ 76
Engine break-in ........................................ 45
Engine compartment ................................ 39
Engine overheat warning indicator ........... 29
Engine serial number ................................. 1
Engine shut-off cord ................................. 44
Engine shut-off switch .............................. 22
Engine stop switch ................................... 22
Enjoy your watercraft responsibly ............ 16
Exhaust temperature warning indicator.... 31
F
Filling the fuel tank ................................... 36
Filling the oil tank ..................................... 36
Fire extinguisher....................................... 41
Flushing the cooling system ..................... 60
Front storage compartment ...................... 32Fuel and oil............................................... 35
Fuel and oil systems ................................ 39
Fuel injection system ................................ 71
Fuel level meter ........................................ 28
Fuel level warning indicator ...................... 29
Fuel system .............................................. 61
Fuel system, checking .............................. 66
Fuel tank .................................................. 66
Fuel tank filler cap .................................... 22
Fuses, replacing ....................................... 78
G
Gasohol .................................................... 35
Gasoline ................................................... 35
Getting to know your watercraft ............... 48
Glove compartment .................................. 33
H
Handgrip ................................................... 26
Hazard information ................................... 14
Hood ......................................................... 21
Hour meter/voltmeter ............................... 28
Hull and deck ........................................... 39
Hull Identification Number (HIN)................. 1
I
Identification numbers ................................ 1
Important labels .......................................... 3
J
Jet intake .................................................. 43
Jet intake and impeller, cleaning .............. 76
Jet thrust nozzle angle, checking ............. 66
Jumper cables, connecting ...................... 77
L
Labels, other .............................................. 7
Labels, warning .......................................... 4
Launching the watercraft .......................... 46
Learning to operate your watercraft ......... 48
Leaving the watercraft .............................. 48
Limitations on who may operate the
watercraft ................................................ 9
Lubrication................................................ 61
Lubrication points ..................................... 68
M
Main components, location of .................. 17
Maintenance and adjustments ................. 63
Model information....................................... 2
Multifunction information center ......... 27, 44
UF1G74E0.book Page 1 Monday, July 31, 2006 10:10 AM