Maintenance and care
70
EJU37060Periodic maintenance chart
The following chart gives general guidelines for periodic maintenance. However, maintenance
may need to be performed more frequently depending on your operating conditions.
This“” mark indicates maintenance that you may do yourself.
This“” mark indicates work to be done by a Yamaha dealer.
Item OperationInitial Thereafter every
Page 10
hours50
hours100
hours100
hours200
hours
6
months12
months12
months24
months
Spark plugsCheck, clean, adjust 74
Lubrication pointsLubricate 75
Internal engine
componentsLubricate*2
50 hours or 12 months—
QSTS cablesLubricate—
Intermediate hous-
ingLubricate 75
Fuel systemCheck 72
Fuel tankCheck, clean 72
Trolling speedCheck, adjust 78
Throttle shaftCheck—
Cooling water pas-
sagesFlush
*167
Water inlet strain-
erCheck, clean—
Bilge strainerClean—
Electric bilge
pump strainerCheck, clean—
ImpellerCheck—
Jet thrust nozzle
angleCheck, adjust 72
Steering masterCheck—
QSTS mechanismCheck, adjust—
Shift cable and re-
verse gateCheck, adjust 73
Throttle cableCheck, adjust 73
Stern drain plugsCheck, replace 47
UF2R70E0.book Page 70 Thursday, November 6, 2008 10:05 AM
Maintenance and care
71
*1 This operation should be performed after every use.
*2 This operation should be performed before long-term storage.
BatteryCheck, charge 76
Rubber couplingCheck—
Engine mountCheck—
Nuts and boltsCheck—
Air filter elementCheck 72
Engine oilReplace
50 hours or 12 months72
Oil filterReplace 72
Valve clearanceCheck, adjust— Item OperationInitial Thereafter every
Page 10
hours50
hours100
hours100
hours200
hours
6
months12
months12
months24
months
UF2R70E0.book Page 71 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
Maintenance and care
78
(3) Secure the battery in place. WARNING!
Fire or explosion could result if the
breather hose is damaged, obstruct-
ed, or not connected properly.
[EWJ00451]
EJU34491
Fuel injection system
If the fuel injection system is malfunctioning,
have a Yamaha dealer service the watercraft.
EJU37500Checking the trolling speed
(1) Place the watercraft in the water.
(2) Start the engine and warm it up. Use the
tachometer in the dual analog meter unit
to check the trolling speed.
If the trolling speed is out of specification,
have a Yamaha dealer service the watercraft.
1Negative (–) battery terminal: Black lead
2Positive (+) battery terminal: Red lead
3Breather hose
Trolling speed:
1250 ±100 r/min
12
3
UF2R70E0.book Page 78 Thursday, November 6, 2008 10:05 AM
Trouble recovery
80
EJU34560
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.
EJU36982Troubleshooting chart
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not
start (Starter motor
does not turn over)Yamaha Se-
curity SystemLock mode selected Select unlock mode
31
Engine shut-
off switchClip not in place Install clip
25
Fuse Burned out Replace fuse and
check wiring84
Battery Run down Recharge 76
Poor terminal con-
nectionsTighten as required
76
Terminal corroded Clean 68
Starter motor Faulty Have serviced by
Yamaha dealer—
Engine does not
start (Starter motor
turns over)Throttle lever Squeezed Release 26
Fuel Empty Refill as soon as pos-
sible41
Stale or contaminat-
edHave serviced by
Yamaha dealer72
Fuel tank Water or dirt present Have serviced by
Yamaha dealer72
Spark plug Fouled or defective Clean or replace 74
Spark plug
capNot connected or
looseConnect properly
74
Connected to wrong
cylinderConnect properly
74
Fuel injec-
tion systemFuel pump faulty Have serviced by
Yamaha dealer—
UF2R70E0.book Page 80 Thursday, November 6, 2008 10:05 AM
Trouble recovery
81
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible41
Stale or contaminat-
edHave serviced by
Yamaha dealer72
Fuel tank Water or dirt present Have serviced by
Yamaha dealer72
Spark plug Fouled or defective Replace 74
Incorrect heat range Replace 74
Gap incorrect Adjust 74
Spark plug
capLoose Connect properly 74
Cracked, torn, or
damagedHave serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel injec-
tion systemFaulty or clogged in-
jectorsHave serviced by
Yamaha dealer—
Warning light or in-
dicator blinksFuel level Empty Refill as soon as pos-
sible41
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer35
Engine over-
heatedJet intake clogged Clean
83
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer37 TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2R70E0.book Page 81 Thursday, November 6, 2008 10:05 AM
Trouble recovery
83
EJU34620
Emergency procedures EJU34631Cleaning the jet intake and impeller
WARNING
EWJ00780
Before attempting to remove weeds or de-
bris from the jet intake or impeller area,
shut the engine off and remove the clip
from the engine shut-off switch. Severe in-
jury or death could result from coming in
contact with the rotating parts of the jet
pump.
If weeds or debris gets caught in the jet intake
or impeller, cavitation can occur, causing jet
thrust to decrease even though engine speed
rises. If this condition is allowed to continue,
the engine will overheat and may seize.
NOTICE: If weeds or debris gets caught in
the jet intake, do not operate the watercraft
above trolling speed until they have been
removed.
[ECJ00651]
If there is any sign that the jet intake or impel-
ler is clogged with weeds or debris, return to
shore and check the intake and impeller. Al-ways stop the engine before beaching the wa-
tercraft.
(1) Place a suitable clean cloth or carpeting
underneath the watercraft to protect it
from abrasions and scratches. Turn the
watercraft on its side as shown. NOTICE:
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.
[ECJ00661]
UF2R70E0.book Page 83 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