YAMAHA EC-03 2011 User Guide

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SAFETY INFORMATION
and ankle so they do not flap), and
a bright colored jacket.

Do not carry too much luggage on
the scooter. An overloaded scoot-
er is unstable.
EAU50823
Charging the battery safely 
Do not charge the battery in areas
potentially exposed to rain or wa-
ter. This could cause an electric
shock or short circuit.

Be sure to plug the charging plug
only directly to a grounded electri-
cal outlet with residual-current de-
vice (RCD) protection to charge
the battery. If incorrectly grounded,
this could cause an electric shock
or short circuit.

If the vehicle is damaged due to
overturning or accident, do not
plug in the charging plug to an out-
let. This could cause an electric
shock or short circuit. Have your
vehicle checked by a Yamahadealer as soon as possible.

If the charging cord or charging
plug is damaged, do not plug in to
an outlet. This could cause an
electric shock or short circuit. Have
your vehicle checked by a
Yamaha dealer as soon as possi-
ble.
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DESCRIPTION
EAU10410
Left view
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1. Main switch/steering lock (page 4-1)
2. Seat lock (page 4-12)
3. Grab bar (page 4-13)
4. Motor housing
5. Rear brake lever free play adjusting nut (page 8-6)
6. Footrest
7. Front brake lever free play adjusting nut (page 8-6)
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DESCRIPTION
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EAU10420
Right view
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1. Charging cord (page 6-4)
2. Seat (page 4-12)
3. Luggage hook (page 4-13)
4. Footrest
5. Centerstand (page 8-9)
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DESCRIPTION
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EAU10430
Controls and instruments
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1. Rear brake lever (page 4-11)
2. Handlebar switches (page 4-11)
3. Multi-function display (page 4-2)
4. Front brake lever (page 4-11)
5. Accelerator grip (page 8-4)
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EC-03 FEATURES
EAU50470
Features The features of the EC-03 are follow-
ing:
The driving power source is only
electricity and there is no need for
fuel supply or engine oil change.

High performance motor with
greatly reduced noise and vibra-
tion providing a pleasant ride.

Charging the vehicle can be done
via a grounded electrical outlet
with residual-current device (RCD)
protection.
EAU50322
Standard mode/power mode The motor driving power can be select-
ed according to riding conditions, road
conditions, etc.
The standard mode is suitable for nor-
mal riding, while the power mode pro-
vides more comfortable riding when
ascending hills.
Switching the mode
Pushing button 1 “POWER” switches
between the standard mode and the
power mode.When the power mode indicator “POW-
ER” is displayed, the vehicle is set to
the power mode. When the power
mode indicator “POWER” is not dis-
played, the vehicle is set to the stan-
dard mode.
TIPThe mode that is currently set is stored
in memory even if the key is turned to“OFF”.
Choosing the mode
Referring to the table below, choose
the mode according to the riding condi-
tions. The standard mode consumes
less battery power so that the distance1. Power mode indicator “POWER”
1
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EC-03 FEATURES
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9traveled on a single charge increases.
: Recommended mode for effective
operation
: Less effective operation than the
power mode
: Distance traveled is shorter than
the standard mode
EAU50332
Traveling distance TIPThe distance that can be traveled on a
single charge varies according to the
riding and road conditions.
These conditions include the number of
starts and stops, vehicle load, the
steepness of slopes, road conditions,
wind direction and velocity, ambient
temperature, charging status, de-
creased battery performance, and lowtire air pressure.
Distance traveled on a single
charge
The data in the following chart was
measured at Yamaha Motor Co., Ltd. It
was measured when traveling with a
new battery at an ambient temperature
and vehicle load (total weight of rider
and luggage) as shown below on a dry
road surface in the absence of wind.
TIPThe maximum slope ascending capac-
ity is a gradient of approximately 16%(about 9 degrees).
The distance that can be traveled
becomes shorter when continu-
Mode
Power*Standard
Applicable
conditionsStarting off
Flat road
Ascending
Descending
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EC-03 FEATURES
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9 ously riding in the power mode as
compared with riding in the stan-
dard mode.

Because of the battery character,
the riding distance might be re-
duced according to the ambient
temperature due to changes of the
battery temperature.

The distance that can be traveled
becomes 5–10% shorter when the
vehicle load is increased 10 kg.
EAU50342
Effective use of the battery If the battery is left nearly fully charged
(4–5 segments shown on the battery
charge indicator) and exposed to high
temperature for an extended period, it
will rapidly deplete. To extend the bat-
tery life, handle as follows:
Choose a cool place with no direct
sunlight when charging the bat-
tery.

Do not store the battery with a
charge less than 20% (below the
last segment of the battery level in-
dicator) for an extended period of
time.

Choose a cool and well-ventilated
place without direct sunlight for
storing the vehicle.

When not used for a long period of
time, charge the battery until the
2–3 segments of the battery
charge indicator are shown and
then store the vehicle in a cool
place (optimum temperature
15 C – 25 C). Check the battery
level while the vehicle is in storage.
If the battery level drops to the last
segment, recharge the battery until2–3 segments of the battery
charge indicator are shown.
NOTICE
ECA17071
If the battery is discharged until the
battery is depleted, recharging will
not be possible and the battery willnot be usable.
Depleting battery image
Period of useUsing at high
temperature Battery
capacity
(%)
Using at normal
temperature
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EC-03 FEATURES
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EAU50351
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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EC-03 FEATURES
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9 Battery level reference table
LitFlashing
Battery level
(%)Battery level indicator
in the displayWhat to do
OK. Go ahead with riding.
OK. Go ahead with riding.
The 4th segment flashes to indicate that the remaining battery charge is now above
half level.
OK. Go ahead with riding.
Decreased ability to ascend slopes.
Charge the battery.
The last segment flashes and the beeper sounds to indicate that the remaining battery
charge is now about 10%.
Stop riding immediately and charge the battery.
There is no battery charge left and it is impossible to ride.
Charge the battery immediately.
This symbol may not be displayed depending on the battery condition.
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INSTRUMENT AND CONTROL FUNCTIONS
EAU49982
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 3-5.)

Battery charging started
EAU10460
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 thekey 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.
EAU10683
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
ON
OFF
LOCK
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