Table of contents
General and important labels ........... 1
Identification numbers .................... 1
Primary Identification (PRI-ID)
number ........................................... 1
Craft Identification Number (CIN) ...... 1
Engine serial number ........................ 1
Model information ........................... 2
Builder’s plate .................................... 2
Important labels .............................. 3
Warning labels ................................... 4
Other labels ....................................... 8
Safety information ........................... 10
Limitations on who may operate
the watercraft ............................ 10
Cruising limitations ....................... 11
Operation requirements ............... 12
Recommended equipment ........... 14
Hazard information ....................... 15
Watercraft characteristics ............. 15
Safe boating rules ........................ 17
Enjoy your watercraft
responsibly ................................ 17
Features and functions ................... 19
Location of main components ...... 19
Operation of controls and other
functions .................................... 23
Seats ............................................... 23
Hood ................................................ 24
Fuel tank filler cap ........................... 24
Remote control transmitter .............. 24
Engine stop switch .......................... 25
Engine shut-off switch ..................... 25
Start switch ...................................... 26
Throttle lever ................................... 26
Cooling water pilot outlets ............... 27
Steering system ............................... 27
Telescopic steering system ............. 28
Shift lever ........................................ 28
Quick Shift Trim System (QSTS)
selector ........................................ 29
Reboarding grip ............................... 30Bow eye ........................................... 30
Stern eyes ....................................... 31
Yamaha Security System ................ 31
Dual analog meter unit .................... 33
Storage compartments .................... 37
Operation ......................................... 41
Fuel and oil .................................. 41
Fuel ................................................. 41
Engine oil ......................................... 42
Pre-operation checks ................... 43
Pre-operation check list ................... 43
Pre-operation check points .............. 45
Operation ..................................... 53
Engine break-in ............................... 53
Launching the watercraft ................. 53
Starting the engine .......................... 53
Stopping the engine ........................ 54
Shifting ............................................ 55
Leaving the watercraft ..................... 55
Operating your watercraft ............ 56
Getting to know your watercraft ....... 56
Learning to operate your
watercraft ..................................... 56
Riding with a passenger .................. 57
Starting the watercraft ..................... 57
Boarding and starting in deep
water ............................................ 58
Capsized watercraft ......................... 61
Turning the watercraft ..................... 62
Stopping the watercraft ................... 63
Beaching the watercraft ................... 64
Docking the watercraft ..................... 64
Reverse on waterways .................... 64
Operating in weeded areas ............. 64
Post-operation care ...................... 65
Transporting ................................. 66
Maintenance and care .................... 67
Storage ........................................ 67
Flushing the cooling system ............ 67
Lubrication ....................................... 68
Battery ............................................. 68
Cleaning the watercraft ................... 68
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Table of contents
Maintenance and adjustments ..... 69
Owner’s/operator’s manual and
tool kit ........................................... 69
Periodic maintenance chart ............. 70
Checking the fuel system ................ 72
Engine oil and oil filter ..................... 72
Air filter element .............................. 72
Checking the jet thrust nozzle
angle ............................................ 72
Checking the shift cable .................. 73
Checking the throttle lever ............... 73
Cleaning and adjusting the spark
plugs ............................................ 74
Lubrication points ............................ 75
Checking the battery ....................... 76
Fuel injection system ....................... 78
Specifications .................................. 79
Specifications ................................ 79
Trouble recovery ............................. 80
Troubleshooting ........................... 80
Troubleshooting chart ...................... 80
Emergency procedures ................ 83
Cleaning the jet intake and
impeller ........................................ 83
Jumping the battery ......................... 84
Replacing the fuses ......................... 84
Towing the watercraft ...................... 86
Submerged watercraft ..................... 86
UF2R70E0.book Page 2 Thursday, November 6, 2008 10:05 AM
Safety information
17
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.
EJU30991
Enjoy your watercraft
responsibly
You share the areas you enjoy when riding
your watercraft with others and with nature.
So your enjoyment includes a responsibility to
treat these other people, and the lands, wa-
ters, and wildlife with respect and courtesy.
Whenever and wherever you ride, think of
yourself as the guest of those around you. Re-
member, for example, that the sound of your
watercraft may be music to you, but it could be
just noise to others. And the exciting splash of
your wake can make waves others won’t en-
joy.
Avoid riding close to shoreline homes and wa-
terfowl nesting areas or other wildlife areas,
and keep a respectful distance from fisher-
men, other boats, swimmers, and populated
beaches. When travel in areas like these is
unavoidable, ride slowly and obey all laws.
Proper maintenance is necessary to ensure
that the exhaust emission and sound levels of
your watercraft will continue to be within regu-
lated limits. You have the responsibility to
make sure that the recommended mainte-
nance in this owner’s/operator’s manual is
carried out.
Remember, pollution can be harmful to the
environment. Do not refuel or add oil where a
spill could cause damage to nature. Remove
your watercraft from the water and move it
away from the shoreline before refueling. Dis-
pose of water and any fuel and oil residue in
the engine compartment according to local
regulations. And keep your surroundings
pleasant for the people and wildlife that share
the waterways: don’t litter.
When you ride responsibly, with respect and
courtesy for others, you help ensure that our
UF2R70E0.book Page 17 Thursday, November 6, 2008 10:05 AM
Features and functions
22
Engine compartment
123
46 5
910
8
7
1Engine cover
2Air filter case
3Water separator
4Fuel tank
5Battery
6Flushing hose connector
7Electrical box
8Spark plug cap
9Engine oil filler cap
10Dipstick
UF2R70E0.book Page 22 Thursday, November 6, 2008 10:05 AM
Features and functions
34
EJU37250Information display
The information display shows watercraft op-
erating conditions.
EJU37261Hour meter/voltmeter
The hour meter/voltmeter can be used as an
hour meter or a voltmeter.
TIP:
The hour meter is selected at the Yamaha
factory.
Hour meter
The hour meter shows the hours of engine op-
eration that have elapsed since the watercraft
was new.To switch to the hour meter from the voltme-
ter:
Push the “Hour Volt” button for at least 1 sec-
ond. The display switches from the voltmeter
to the hour meter.
Voltmeter
The voltmeter shows the battery voltage.
When the battery voltage is normal, the volt-
meter displays approximately 12 volts.
If the battery voltage has dropped significant-
ly, “LO” is displayed on the voltmeter. If the
battery voltage has risen significantly, “HI” is
displayed. If “HI” or “LO” is displayed, immedi-
ately return to shore and have a Yamaha
dealer service the watercraft.
1Fuel level meter
2Fuel indicator
3Engine overheat warning indicator
4Check engine warning indicator
5Oil pressure warning indicator
6Hour meter/voltmeter
1Hour meter/voltmeter
12345
6
1
1“Hour Volt” button
2Hour meter
1
2
UF2R70E0.book Page 34 Thursday, November 6, 2008 10:05 AM
Features and functions
35
To switch to the voltmeter from the hour
meter:
Push the “Hour Volt” button for at least 1 sec-
ond. The display switches from the hour
meter to the voltmeter.
EJU37270Fuel level meter
The fuel level meter is provided for convenient
fuel level checking while riding.
The fuel level meter has four segments which
show the amount of fuel remaining in the fuel
tank. The display segments of the fuel level
meter disappear one at a time as the fuel level
decreases.
TIP:
The fuel level is most accurate when the wa-
tercraft is sitting level on a trailer or in the wa-
ter.
EJU37280Fuel level warning
If the fuel remaining in the fuel tank drops to
about 18 L (4.8 US gal, 4.0 Imp. gal), the low-
est fuel level segment, the fuel indicator, and
the “WARNING” indicator light blink, and the
buzzer sounds intermittently.
If this occurs, refill the fuel tank as soon as
possible.
The warning signals will be cleared when the
engine is restarted after the fuel tank is re-
filled.
TIP:
Push the “Hour Volt” button to stop the buzz-
er.
EJU37290Oil pressure warning
If the oil pressure drops significantly, the
“WARNING” indicator light and the oil pres-
sure warning indicator blink, and the buzzer
sounds intermittently. At the same time, the
1“Hour Volt” button
2Vo l t m e t e r
1Fuel level meter
1
2
1
1“Hour Volt” button
1
UF2R70E0.book Page 35 Thursday, November 6, 2008 10:05 AM
Features and functions
36
maximum engine speed is limited to help pre-
vent damage.
If this occurs, immediately reduce the engine
speed, return to shore, and then check the en-
gine oil level. (See page 45 for engine oil level
checking procedures.) If the oil level is suffi-
cient, have a Yamaha dealer check the water-
craft.
TIP:
Push the “Hour Volt” button to stop the buzz-
er.
EJU37300Engine overheat warning
If the engine temperature rises significantly,
the “WARNING” indicator light and the engine
overheat warning indicator blink, and the
buzzer sounds intermittently. Then, the
“WARNING” indicator light and the engine
overheat warning indicator stop blinking and
remain on, and the buzzer sounds continu-ously. After the light and indicator start to blink
and the buzzer sounds, the maximum engine
speed is limited to help prevent damage.
If this occurs, immediately reduce the engine
speed, return to shore, and then check for wa-
ter discharge at the port (left) cooling water pi-
lot outlets while the engine is running. If there
is no discharge of water, shut the engine off,
and then check the jet intake for clogging.
(See page 83 for jet intake cleaning proce-
dures.) NOTICE: If you cannot locate and
correct the cause of the overheating, con-
sult a Yamaha dealer. Continuing to oper-
ate at higher speeds could result in severe
engine damage.
[ECJ00041]
1“Hour Volt” button
1
UF2R70E0.book Page 36 Thursday, November 6, 2008 10:05 AM
Operation
41
EJU31821
Fuel and oil EJU37222Fuel
WARNING
EWJ00282
Gasoline and gasoline vapors are ex-
tremely flammable. To avoid fires and
explosions and to reduce the risk of in-
jury when refueling, follow these in-
structions.
Gasoline is poisonous and can cause in-
jury or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline, inhale a
lot of gasoline vapor, or get some gaso-
line in your eyes, see your doctor imme-
diately. If gasoline spills on your skin,
wash with soap and water. If gasoline
spills on your clothing, change your
clothes.
NOTICE
ECJ00321
Do not use leaded gasoline. Leaded gas-
oline can seriously damage the engine.
Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can
cause poor performance and engine
damage. Use only fresh gasoline that
has been stored in clean containers.
Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and thefuel meets the minimum octane ratings. E-85
is a fuel blend containing 85% ethanol and
therefore must not be used in this watercraft.
All ethanol blends containing more than 10%
ethanol can cause fuel system damage or en-
gine performance problems.
Yamaha does not recommend gasohol con-
taining methanol because it can cause fuel
system damage and engine performance
problems.
To fill the fuel tank:
(1) Before refueling, turn off the engine. Do
not stand or sit on the watercraft. Never
refuel while smoking, or while in the vicin-
ity of sparks, open flames, or other sourc-
es of ignition.
(2) Place the watercraft in a well-ventilated
area and in a horizontal position.
(3) Remove the seats, and then check the
fuel level. (See page 23 for seat removal
and installation procedures.)
(4) Open the hood. (See page 24 for hood
opening and closing procedures.)
(5) Remove the fuel tank filler cap, and then
slowly add fuel to the fuel tank. Stop filling
when the fuel level reaches approximate-
ly 50 mm (2 in) from the top of the fuel
tank. Do not overfill the fuel tank. Be-
cause fuel expands when it heats up,
heat from the engine or the sun can
cause fuel to spill out of the fuel tank. Do
not leave the watercraft with a full tank in
direct sunlight. Recommended fuel:
Regular unleaded gasoline with a mini-
mum octane rating of
86
(Pump octane number) = (R + M)/2
90 (Research octane number)
UF2R70E0.book Page 41 Thursday, November 6, 2008 10:05 AM