2011 YAMAHA EC-03 Owners Manual

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SAFETY INFORMATION
imize imbalance or instability.

Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the scooter before
riding. Check accessory mounts
and cargo restraints frequently.
• Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Such items
can create unstable handling or
a slow steering response.

This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection toYamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,as well as those provided under “Load-
ing” when mounting accessories.

Never install accessories or carry
cargo that would impair the perfor-
mance of your scooter. Carefully
inspect the accessory before using
it to make sure that it does not in
any way reduce ground clearance
or cornering clearance, limit sus-
pension travel, steering travel or
control operation, or obscure lights
or reflectors.
• Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
• Bulky or large accessories may
seriously affect the stability of
the scooter due to aerodynamic
effects. Wind may attempt to lift
the scooter, or the scooter may
become unstable in cross
winds. These accessories may
also cause instability when
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SAFETY INFORMATION
1passing or being passed by
large vehicles.
• Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
tor and may limit control ability,
therefore, such accessories are
not recommended.

Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
scooter’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or motor power.
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to provide
the best combination of handling, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
appropriate. Refer to page 8-5 for tire
specifications and more information on
replacing your tires.Transporting the Scooter
Be sure to observe following instruc-
tions before transporting the scooter in
another vehicle.

Remove all loose items from the
scooter.

Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.

Secure the scooter with tie-downs
or suitable straps that are attached
to solid parts of the scooter, such
as the frame or upper front fork tri-
ple clamp (and not, for example, to
rubber-mounted handlebars or
turn signals, or parts that could
break). Choose the location for the
straps carefully so the straps will
not rub against painted surfaces
during transport.

The suspension should be com-
pressed somewhat by the
tie-downs, if possible, so that the
scooter will not bounce excessive-
ly during transport.
EAUT2030
Further safe-riding points 
Make sure to signal clearly when
making turns.

Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.

Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.

Be careful when passing parked
cars. A driver might not see you
and open a door in your path.

Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers be-
come extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter up-
right, otherwise it could slide out
from under you.

The brake lining could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.

Always wear a helmet, gloves,
trousers (tapered around the cuff
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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
12
54 73
6
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
13
4 2
5
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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4
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EAU10430
Controls and instruments
124
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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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