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
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
42
(6) Wipe up any spilled fuel immediately.
(7) Install the fuel tank filler cap, and then
close the hood. Make sure that the fuel
tank filler cap and the hood are securely
closed before operating the watercraft.
(8) Install the seats. Make sure that the seats
are securely installed before operating
the watercraft.
EJU31891Engine oil
NOTICE
ECJ00281
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
gine damage.
Make sure that the engine oil is at the speci-
fied level. Add oil as necessary. (See page 45
for engine oil level checking procedures.) Use
a combination of the recommended SAE and
API engine oil classifications shown in the
chart below. Fuel tank capacity:
70 L (18.5 US gal, 15.4 Imp.gal)
1Approximately 50 mm (2 in) from top of the
fuel tank
1
UF2R70E0.book Page 42 Thursday, November 6, 2008 10:05 AM
Operation
45
EJU32280Pre-operation check points EJU32331Engine compartment
WARNING
EWJ00460
Failure to ventilate the engine compart-
ment could result in a fire or explosion. Do
not start the engine if there is a fuel leak or
a loose electrical connection.
Ventilate the engine compartment before
each use.
To ventilate the engine compartment, remove
the seats. (See page 23 for seat removal and
installation procedures.) Leave the engine
compartment open for a few minutes to allow
any fuel vapors to escape.
While the engine compartment is open, check
for loose electrical connections.
EJU32350Hull and deck
Check the hull and deck for cracks and other
damage. If any damage is found, have a
Yamaha dealer repair the watercraft.
EJU36871Fuel level
Make sure that there is sufficient fuel in the
fuel tank before each use.
Also, check the fuel system for leakage,
cracks, and malfunctions. (See page 72 for
check points and correct procedures.)
(1) Open the hood and remove the fuel tank
filler cap to release any pressure thatmight have built up in the fuel tank. (See
page 24 for hood opening and closing
procedures.)
(2) Remove the seats. (See page 23 for seat
removal and installation procedures.)
(3) Check the fuel level in the fuel tank and
replenish if necessary. (See page 41 for
filling procedures.)
(4) Install the fuel tank filler cap, and then
close the hood and install the seats.
EJU36882Engine oil level
Check the engine oil level before each use.
WARNING
EWJ00340
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
NOTICE
ECJ01001
Make sure that debris and water do not en-
ter the oil filler hole. Debris and water in
the engine oil can cause serious engine
damage.
To check the engine oil level:
(1) Place the watercraft in a precisely level
position on land with the engine stopped.
TIP:
If the engine was running, allow the engine oil
to settle by waiting 5 minutes or more before
checking the oil level.
(2) Remove the seats. (See page 23 for seat
removal and installation procedures.)
(3) Remove the dipstick, wipe it clean, and
then insert it back into the dipstick tube
completely. Remove the dipstick again
and check that the engine oil level is be-
UF2R70E0.book Page 45 Thursday, November 6, 2008 10:05 AM
Operation
53
EJU32742
Operation
WARNING
EWJ00510
Before operating your watercraft, become
familiar with all of the controls. Consult a
Yamaha dealer about any control or func-
tion that you do not fully understand. Fail-
ure to understand how the controls work
could cause an accident or prevent you
from avoiding an accident.
NOTICE
ECJ00460
Make sure that the stern drain plugs are
tightened securely before launching the
watercraft.
EJU36661Engine break-in
NOTICE
ECJ00430
Failure to follow the engine break-in pro-
cedure could result in reduced engine life
or even severe engine damage.
The engine break-in period is essential to al-
low the various components of the engine to
wear and polish themselves to the correct op-
erating clearances. This ensures proper per-
formance and promotes longer component
life.
TIP:
Be sure to check the engine oil level before
operating the watercraft for the first time. (See
page 45 for engine oil checking procedures.)
(1) Launch the watercraft and start the en-
gine. (See page 53 for engine starting
procedures.)
(2) For the first 5 minutes, run the engine at
trolling speed only. For the 30 minutes of
operation after that, keep the engine
speed below 5000 r/min. For the 1 hour of
operation after that, keep the engine
speed below 6000 r/min.
(3) Proceed with normal operation.
EJU32801Launching the watercraft
When launching the watercraft, make sure
that there are no obstacles behind you.
Use the remote control transmitter to select
the unlock mode. (See page 31 for Yamaha
Security System lock and unlock mode selec-
tion procedures.)
After the watercraft is in the water, start the
engine. Shift into reverse and move the water-
craft back slowly. If there are waves, some-
one should make sure that the watercraft is
not pushed into the trailer before backing
away.
EJU36341Starting the engine
(1) If the lock mode of the Yamaha Security
System is selected, use the remote con-
trol transmitter to select the unlock mode.
(See page 31 for Yamaha Security Sys-
tem lock and unlock mode selection pro-
cedures.)
(2) Launch the watercraft in water free from
weeds and debris and at least 60 cm (2 ft)
deep from the bottom of the watercraft.
NOTICE: Never operate in water that is
less than 60 cm (2 ft) deep from the
bottom of the watercraft, otherwise
UF2R70E0.book Page 53 Thursday, November 6, 2008 10:05 AM
Maintenance and care
72
EJU34212Checking the fuel system
WARNING
EWJ00381
Leaking fuel can result in fire or explosion.
Check for fuel leakage regularly.
If any fuel leakage is found, the fuel sys-
tem must be repaired by a qualified me-
chanic. Improper repairs can make the
watercraft unsafe to operate.
Check the fuel system for leaks, cracks, and
malfunctions. If any problem is found, consult
a Yamaha dealer.
Check:
Fuel tank filler cap and seal for damage
Fuel in fuel tank for water and dirt
Fuel tank for damage, cracks, and leakage
Fuel hoses and joints for damage, cracks,
and leakage
Air bleeding passages for leakageEJU34230Fuel tank
Check the fuel tank for leakage and for water
in the tank. If water is found in the fuel system,
or if the fuel tank needs to be cleaned, have a
Yamaha dealer service the watercraft.
EJU36951Engine oil and oil filter
WARNING
EWJ00340
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
NOTICE
ECJ00991
Do not run the engine with too much or not
enough oil in the engine, otherwise the en-
gine could be damaged.
It is recommended to have a Yamaha dealer
change the engine oil. However, if you choose
to change the oil on your own, consult a
Yamaha dealer.
EJU34311Air filter element
Have a Yamaha dealer check the air filter ele-
ment at the intervals specified in the periodic
maintenance chart.
EJU34321Checking the jet thrust nozzle angle
Check the handlebars and jet thrust nozzle for
smooth operation.
Turn the handlebars as far as possible to the
right and left and check that the difference of
distances A and B between the jet thrust noz-
zle and the nozzle is within specification.1Fuel tank
1
Recommended engine oil:
SAE 10W-30, 10W-40, 20W-40, 20W-
50
Oil grade:
API SE,SF,SG,SH,SJ,SL
Oil quantity:
With oil filter replacement:
3.1 L (3.28 US qt, 2.73 Imp.qt)
Without oil filter replacement:
3.0 L (3.17 US qt, 2.64 Imp.qt)
Total amount:
4.3 L (4.55 US qt, 3.78 Imp.qt)
UF2R70E0.book Page 72 Thursday, November 6, 2008 10:05 AM
Index
A
Air filter element ....................................... 72
B
Battery ................................................ 47, 68
Battery, checking...................................... 76
Battery, jumping ....................................... 84
Beaching the watercraft ........................... 64
Bilge ......................................................... 47
Boarding alone ......................................... 58
Boarding and starting from a dock ........... 58
Boarding and starting in deep water ........ 58
Boarding and starting in shallow water .... 57
Boarding with a passenger....................... 59
Bow down................................................. 30
Bow eye ................................................... 30
Bow up ..................................................... 30
Builder’s plate............................................. 2
C
Capsized watercraft ................................. 61
Check engine warning.............................. 37
Cleaning the watercraft ............................ 68
Cooling water pilot outlets .................. 27, 52
Craft Identification Number (CIN) ............... 1
Cruising limitations ................................... 11
D
Docking the watercraft ............................. 64
Dual analog meter unit ....................... 33, 52
E
Emergency procedures ............................ 83
Engine break-in ........................................ 53
Engine compartment ................................ 45
Engine oil ................................................. 42
Engine oil and oil filter .............................. 72
Engine oil level ......................................... 45
Engine overheat warning ......................... 36
Engine serial number ................................. 1
Engine shut-off cord (lanyard) .................. 51
Engine shut-off switch .............................. 25
Engine stop switch ................................... 25
Enjoy your watercraft responsibly ............ 17
F
Fire extinguisher....................................... 48
Flushing the cooling system ..................... 67
Front storage compartment ...................... 37
Fuel .......................................................... 41Fuel and oil............................................... 41
Fuel injection system ................................ 78
Fuel level .................................................. 45
Fuel level meter ........................................ 35
Fuel level warning .................................... 35
Fuel system, checking .............................. 72
Fuel tank .................................................. 72
Fuel tank filler cap .................................... 24
Fuses, replacing ....................................... 84
G
Getting to know your watercraft ............... 56
Glove compartment .................................. 38
H
Hazard information ................................... 15
Hood ......................................................... 24
Hour meter/voltmeter ............................... 34
Hull and deck ........................................... 45
I
Identification numbers ................................ 1
Information display ................................... 34
J
Jet intake .................................................. 51
Jet intake and impeller, cleaning .............. 83
Jet thrust nozzle angle, checking ............. 72
Jumper cables, connecting ...................... 84
L
Labels, important ........................................ 3
Labels, other .............................................. 8
Labels, warning .......................................... 4
Launching the watercraft .......................... 53
Learning to operate your watercraft ......... 56
Leaving the watercraft .............................. 55
Limitations on who may operate the
watercraft .............................................. 10
L-MODE (low-RPM mode) ....................... 32
Lubrication................................................ 68
Lubrication points ..................................... 75
M
Main components, location of .................. 19
Maintenance and adjustments ................. 69
Model information....................................... 2
O
Oil pressure warning ................................ 35
Operating in weeded areas ...................... 64
Operating your watercraft ......................... 56
UF2R70E0.book Page 1 Thursday, November 6, 2008 10:05 AM