2015 YAMAHA V1 engine

Trouble recovery
80
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as pos-
sible40
Stale or contaminat-
edHave serviced by
Yamaha dealer—
Fuel tank Water or dirt present Have serviced by
Yamaha dealer—
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
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 blinks or
comes onFuel level Empty Refill as soon as pos-
sible40
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer32
Engine over-
heatedJet intake clogged Clean
82
Check en-
gine warningFaulty sensors Have serviced by
Yamaha dealer33 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
81
Watercraft slow or
loses powerCavitation Jet intake clogged Clean 82
Impeller damaged or
wornHave serviced by
Yamaha dealer82
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine32
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
32
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Spark plug
capNot connected or
looseHave serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer—
Air filter Clogged Have serviced by
Yamaha dealer—
Oil buildup Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
UF2P72E0.book Page 81 Tuesday, August 26, 2014 10:08 AM

Trouble recovery
82
EJU34625
Emergency proceduresEJU34635Cleaning the jet intake and impeller
WARNING
EWJ00783
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 water-
craft above trolling speed until they have
been removed.
[ECJ00654]
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
watercraft.
(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, sup-
port the bow so that the handlebars
are not bent or damaged.
[ECJ00662]
STOP
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Trouble recovery
83
(2) Remove any weeds or debris from
around the jet intake, drive shaft, impel-
ler, jet pump housing, and jet thrust noz-
zle.
If debris is difficult to remove, consult a
Yamaha dealer.
EJU34642Jumping the battery
If the watercraft battery has run down, the en-
gine can be started using a 12-volt booster
battery and jumper cables.
EJU34664Connecting the jumper cables
WARNING
EWJ01251
To avoid battery explosion and serious
damage to the electrical system:
Do not reverse the polarity of the jumper
cables when connecting to the batter-
ies.
Do not connect the negative (–) jumper
cable to the negative (–) terminal of the
watercraft battery.
Do not touch the positive (+) jumper ca-
ble to the negative (–) jumper cable.
(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 engine hanger.
(4) Start the engine, and then disconnect the
jumper cables by reversing the steps
above. (See page 25 for information on
starting the engine.)
EJU34696Replacing the fuses
If a fuse is blown, replace it with the proper
fuse.
To replace a fuse:
(1) Remove the seat. (See page 34 for seat
removal and installation procedures.)
1Negative (–) jumper cable
2Booster battery
3Positive (+) jumper cable
4Engine hanger
1Good fuse
2Blown fuse
1
43
2
2 1
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Trouble recovery
85
EJU34716Towing the watercraft
WARNING
EWJ00812
The operator of the towing boat must
keep speed to a minimum and avoid
traffic or obstacles which could be a
hazard to the operator on the water-
craft.
The towline should be long enough so
that the watercraft will not collide with
the towing boat when slowing down.
If the watercraft becomes inoperative in the
water, it can be towed to shore.
To tow the watercraft:
Use a towline that is three times the com-
bined length of the towing boat and the wa-
tercraft.
(1) Securely attach the towline to the bow
eye of the watercraft being towed.
(2) Sit astride the seat and hold on to the
handlebars in order to balance the water-
craft. NOTICE: The bow must be kept
up out of the water during towing, oth-
erwise water could flood the engine
compartment or water could flow
back into the engine, causing severe
engine damage.
[ECJ01331]
Tow the watercraft at 8 km/h (5 mph) or less.
NOTICE: Tow the watercraft at 8 km/h (5mph) or less, otherwise water could flood
the engine compartment or water could
flow back into the engine, causing severe
engine damage.
[ECJ01322]
EJU36156
Submerged watercraft
If the watercraft is submerged or flooded with
water, drain the bilge water from the engine
compartment. Then, have a Yamaha dealer
service the watercraft as soon as possible.
If the watercraft was submerged:
(1) Remove the watercraft from the water
and drain the water from the storage
compartments. (See page 36 for infor-
mation on draining the storage compart-
ments.)
(2) Drain the bilge water from the engine
compartment. (See page 43 for informa-
tion on draining the bilge water.)
(3) Have the watercraft serviced by a
Yamaha dealer as soon as possible.
NOTICE: Be sure to have a Yamaha
dealer inspect the watercraft. Other-
wise, serious engine damage could
result.
[ECJ00792]
1Bow eye
1
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86
Index
A
After removing the watercraft from the
water ..................................................... 68
B
Battery care.............................................. 70
Battery checks ......................................... 50
Battery, jumping ....................................... 83
Beaching and docking the watercraft ...... 67
Beverage holder ....................................... 38
Bilge water check..................................... 50
Bilge water, draining ................................ 43
Bilge water, draining on land ................... 43
Bilge water, draining on water ................. 44
Boarding alone ......................................... 62
Boarding and starting off from a dock ..... 66
Boarding the watercraft ........................... 62
Boarding with passenger(s) ..................... 63
Bow eye ................................................... 35
Bow storage compartment ...................... 36
Builder’s plate ............................................ 2
C
Capsized watercraft ................................. 66
Check engine warning ............................. 33
Cleaning ................................................... 73
Cleaning the watercraft ............................ 70
Cleat ......................................................... 36
Cooling water pilot outlet ......................... 27
Cooling water pilot outlet check .............. 55
Craft Identification Number (CIN)............... 1
Cruising limitations................................... 11
E
Emergency procedures ............................ 82
Engine break-in ........................................ 46
Engine compartment check ..................... 49
Engine idling speed check ....................... 55
Engine oil ................................................. 42
Engine oil and oil filter .............................. 77
Engine oil level check............................... 49
Engine oil requirements ........................... 42
Engine overheat warning ......................... 32
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 52
Engine shut-off switch ............................. 25
Engine stop switch................................... 25
Engine unit check..................................... 49Enjoy your watercraft responsibly ............ 19
Equipment ................................................ 34
F
Fire extinguisher check ............................ 53
Fire extinguisher holder and cover........... 38
Fire extinguisher holder, cover, and
band checks ......................................... 53
Flushing the cooling water passages....... 69
Fuel .......................................................... 40
Fuel level check........................................ 49
Fuel level meter ........................................ 31
Fuel level warning..................................... 31
Fuel requirements .................................... 40
Fuel system checks ................................. 49
Fuses, replacing ....................................... 83
G
Getting to know your watercraft .............. 56
Glossary, watercraft ................................. 20
Glove compartment ................................. 37
H
Handgrip .................................................. 34
Hazard information................................... 15
Hood check .............................................. 54
Hour meter/voltmeter ............................... 30
Hull and deck check ................................ 54
I
Identification numbers ............................... 1
Information display................................... 29
J
Jet intake and impeller, cleaning.............. 82
Jet intake checks ..................................... 54
Jumper cables, connecting ...................... 83
L
Labels, important ....................................... 4
Labels, other .............................................. 8
Labels, warning .......................................... 5
Launching the watercraft ......................... 57
Learning to operate your watercraft......... 56
Leaving the watercraft.............................. 58
Limitations on who may operate the
watercraft .............................................. 10
Long-term storage ................................... 73
Lubrication ............................................... 73
M
Main components, location of ................. 21
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Index
87
Maintenance ............................................ 75
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 29
Multifunction information center check ... 55
O
Oil pressure warning ................................ 32
Operating in weeded areas ...................... 67
Operating the watercraft .......................... 58
Operating the watercraft in reverse
(V1 Sport) .............................................. 61
Operating your watercraft ........................ 56
Operation requirements ........................... 12
P
Periodic maintenance chart ..................... 76
Post-launch checks ................................. 54
Post-operation care ................................. 69
Pre-launch checks ................................... 49
Pre-operation check points ..................... 49
Pre-operation checklist ............................ 47
Primary Identification (PRI-ID) number ...... 1
R
Reboarding step (V1 Sport)...................... 35
Recommended equipment ...................... 14
Reverse system checks (V1 Sport) .......... 51
Reverse system (V1 Sport)....................... 28
Riding position ......................................... 57
Rustproofing ............................................ 74
S
Safe boating rules .................................... 18
Safety equipment check .......................... 54
Seat .......................................................... 34
Speedometer ........................................... 29
Start switch .............................................. 25
Starting off ............................................... 65
Starting off from a trailer .......................... 65
Starting the engine on water .................... 57
Steering system ....................................... 26
Steering system checks ........................... 50
Stern drain plug checks ........................... 54
Stern eyes ................................................ 36
Stopping the engine ................................. 58
Stopping the watercraft ........................... 61
Storage compartment checks ................. 53
Storage compartments ............................ 36Submerged watercraft ............................. 85
Switch checks .......................................... 53
T
Tachometer .............................................. 30
Throttle lever ............................................ 26
Throttle lever checks ................................ 52
Tool kit ..................................................... 75
Towing the watercraft .............................. 85
Transporting on a trailer ........................... 45
Troubleshooting ....................................... 79
Troubleshooting chart .............................. 79
Turning the watercraft .............................. 59
W
Wakeboarding and water-skiing .............. 17
Water separator ....................................... 27
Water separator check ............................. 49
Watercraft characteristics ........................ 15
Watercraft control functions..................... 25
Watercraft operation functions ................ 28
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