Page 4 of 78
IMPORTANT MANUAL INFORMATION
EAU10133
Particularly important information is distinguished in this manual by the following notations:
*Product and specifications are subject to change without notice.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
A WARNING indicates a hazardous situation wh
ich, if not avoided, could result in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
WARNING
NOTICETIP
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Page 18 of 78
EC-03 FEATURES
3-3
1
23
4
5
6
7
8
9
EAU50352
Battery level TIPBe sure to check the battery level be-fore each ride.
Checking the battery level
Check the number of segments dis-
played in the battery level indicator.TIPWhile charging the battery, the indica-
tor shows the progress status of charg-
ing. This differs from the indication of
remaining charge when the vehicle is inuse. See page 6-9.
Battery level indicator
When the key is turned to “ON”, all seg-
ments of the battery level indicator
come on for a few seconds, and then
show a general indication of the re-
maining battery charge corresponding
to the amount of the electric output.
1. Battery level indicator
1
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Page 20 of 78

4-1
1
2
34
5
6
7
8
9
INSTRUMENT AND CONTROL FUNCTIONS
EAU49983
Beeper The EC-03 informs you of the following
operations and status of the vehicle us-
ing the beeper.
Key in “ON” position
Standby mode (See page 7-2.)
A control button is pushed
Security lock unlocked
Security lock unlock failed
Enters the riding mode (see page
4-6).
Turn signals in use
Battery level is approx. 10% (See
page 3-4.)
Battery charging started
EAU10461
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU50000
ON
All electrical systems are supplied with
power, and the headlight, meter lighting
and taillight come on. The key cannot
be removed.TIPTo protect the battery, the EC-03 is
equipped with an auto-off function. The
power stops automatically if the vehicle
is stopped for more than five minutes.
To cancel the auto-off function, turn the key to “OFF” and then back to “ON”
again.
EAU10661
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10061
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result inloss of control or an accident.
EAU10684
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
ON
OFF
LOCK
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Page 21 of 78
INSTRUMENT AND CONTROL FUNCTIONS
4-2
2
345
6
7
8
9
To lock the steering
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF” po- sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key. To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
EAU53930
Multi-function display
WARNING
EWA12312
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract the
operator and increase the risk of anaccident.
1. Push.
2. Turn.
1
2
1. Push.
2. Turn.
1
2
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Page 22 of 78

INSTRUMENT AND CONTROL FUNCTIONS
4-3
1
2
34
5
6
7
8
9The EC-03 is equipped with a self-diag-
nosis device for the battery and control unit. When the key is turned to “ON”,
the self-diagnosis starts automatically
and all of the display segments of the
multi-function meter appear. Once the
self-diagnosis is completed, the display
automatically changes to the standby
mode. When in the standby mode,
“PUSH” starts flashing.
Push any of the following buttons to en-
ter the riding mode.
When the vehicle is in the riding mode,
the operating status indicator “RUN”
and the ready indicators appear.
1. Warning mark “ ”
2. Speed warning indicator “SPEED”
3. Tripmeter/odometer/temperature warning
display “Trip”/“Odo”/“HEAT”
4. Control buttons
5. Warning light
6. Battery level indicator
7. Operating status indicator “RUN”
8. Security lock indicator “ LOCK”
9. Speedometer
1
2
3
4
5 6 7 8 9
1. Button 1 “POWER”
2. Button 2 “SET”
3. Button 3 “SELECT”
1. Operating status indicator “RUN”
2. Ready indicators
12
3
12
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Page 24 of 78

INSTRUMENT AND CONTROL FUNCTIONS
4-5
1
2
34
5
6
7
8
9
When the battery level indicator
shows less than two segments, if
the vehicle is exposed to higher
temperatures, “COOL” may flash
and the riding speed may be re-
duced.
When riding on a long uphill
stretch, “HEAT” may flash and the
riding speed may be reduced.
When riding on a long uphill
stretch, the temperature of the
control unit may rise and “HEAT”
may flash. If you ride continually,
the operating status indicator
“RUN” goes off to protect the con-
trol unit and further riding may be
impossible, but this is not a mal-function.
The vehicle can be ridden when the op-
erating status indicator “RUN” appears
in the display, however riding speed
may be reduced. This is due to reduced
electric output from the battery be-
cause of high battery temperature. If the battery level indicator shows less
than two segments, or the electric out-
put from the battery is limited because
of the battery temperature, the riding
power is substantially reduced, but this
is not a malfunction.
When the battery and control unit have
reached their normal operating temper-
ature and the operating status indicator
“RUN” appears, the temperature warn-
ing display automatically changes back
to the tripmeter/odometer display.
If the operating status indicator “RUN”
does not appear, the vehicle cannot be
ridden.Turn the key to “OFF” and allow the
battery and control unit to cool down
before riding again.
TIPWhen the operating status indicator
“RUN” disappears and riding cannot be
continued, the temperature warning
display can be canceled by turning the
key to “OFF” and then back to “ON” af-
ter the battery and control unit havecooled down.
WARNING
EWA15631
Before pushing or moving the
EC-03, be sure to turn the key to
“OFF”. The vehicle may suddenly
1. Operating status indicator “RUN”
2. Temperature indicator “HEAT”
1
2
1. Tripmeter/odometer
1
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Page 25 of 78

INSTRUMENT AND CONTROL FUNCTIONS
4-6
2
345
6
7
8
9
start to move if the accelerator grip
is turned while the key is turned to
“ON”.
Speed warning indicator “SPEED”
If the vehicle speed exceeds 45 km/h,
the speed warning indicator appears
and the warning light flashes.
Operating status indicator “RUN”
This indicator appears when the vehi-
cle can be ridden.
Battery level indicator
This indicator shows the remaining bat-
tery charge.
When only one battery indicator seg-
ment remains, recharge the battery as
soon as possible. (See page 3-3 for
more information about the battery lev-
el.)
TIPMake sure that the battery is sufficientlycharged before riding.
If the self-diagnosis detects a problem
with the battery, the warning light
comes on, the warning mark “ ” ap-
pears, and all segments of the battery
level indicator flash. The electric output
from the battery may also be reduced.
The vehicle can still be ridden, but it
must be checked by a Yamaha dealer
as soon as possible.
Warning light
This warning light comes on or flashes
as follows:
Speed warning indicator
The warning light flashes when vehicle
speed exceeds 45 km/h. At the same
time, the speed warning indicator
“SPEED” appears.
1. Battery level indicator
1
1. Battery level indicator
2. Warning light
3. Warning mark “ ”
2
1
3
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Page 26 of 78

INSTRUMENT AND CONTROL FUNCTIONS
4-7
1
2
34
5
6
7
8
9Error warnings
If a problem is detected, the warning
light comes on. In this case, check for
the warning mark “ ”. If this warning
mark also appears, have a Yamaha
dealer check the vehicle.
Warning mark “ ”
This warning mark flashes if a problem
is detected. If the warning mark keeps
flashing after turning the key to “OFF”
and then back to “ON”, have a Yamaha
dealer check the vehicle.TIPAfter turning the key to “ON”, the warn-
ing mark appears. If the warning mark
goes out after a few seconds, there isno malfunction. Go ahead with riding.
EAU50034
Using the security lock The EC-03 is equipped with a security
lock that can be used by registering a
security number. Once the security
number has been set, the vehicle can-
not be ridden unless the correct securi-
ty number is entered, even if the key is
turned to “ON”.
Registering and changing the secu-
rity number
WARNING
EWA15611
Be sure to stop the vehicle before
registering or changing the security
number. Changing settings while
riding can distract the operator andincrease the risk of an accident.TIPThe security number registration/
change mode is canceled if the regis-
tering procedure is not completed in
one minute. If the mode cancels, repeatthe procedure.
1. Turn the key to “ON”. All display segments appear for a
few seconds, then the vehicle en- ters the standby mode and
“PUSH” flashes.
TIPWhen the security lock has been
locked, the security number indicator
“ LOCK” appears when the vehicle isin the standby mode.
2. Change to the riding mode by pushing any of the buttons.1. Security lock indicator “ LOCK”
1
1CB-9-EA.book 7 ページ 2012年4月11日 水曜日 午前9時34分