2012 YAMAHA EC-03 tire pressure

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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.
EAU53920
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).
Because of the battery character,
the riding distance might be re-
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FOR YOUR SAFETY – PRE-OPERATION CHECKS
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Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided inthis manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Front brake Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary. 8-6, 8-8
Rear brake Check operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary. 8-6, 8-8
Control cables Make sure that operation is smooth.
Lubricate if necessary. 8-8
Wheels and tires Check for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary. 8-5, 8-6
Brake levers Make sure that operation is smooth.
Lubricate lever pivoting
points if necessary. 8-9
Centerstand Make sure that operation is smooth.
Lubricate pivot if necessary. 8-9
Chassis fasteners Make sure that all nuts, bolts
and screws are properly tightened.
Tighten if necessary. —
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PERIODIC MAINTENANCE AND ADJUSTMENT
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TIP
The annual checks must be performed every year, except if a kilometer-based maintenance is performed in-
stead.

From 30000 km, repeat the maintenance intervals starting from 6000 km.

Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technicalskills.
EAU50620
General maintenance and lubrication chart NO. ITEM CHECK OR MAINTENANCE JOB ODOMETER READING
ANNUAL
CHECK
1000 km 6000 km 12000 km 18000 km 24000 km
1* Front brake Check operation and adjust
brake lever free play. 
Replace brake shoes. Whenever worn to the limit
2* Rear brake Check operation and adjust
brake lever free play. 
Replace brake shoes. Whenever worn to the limit
3* Wheels Check runout and for damage. 
4* Tires Check tread depth and for
damage.
Replace if necessary.
Check air pressure.
Correct if necessary. 
5* Wheel bearings Check bearing for looseness or
damage. 
6* Steering bearings Check bearing play and steering
for roughness. 
Lubricate with lithium-soap-based grease. Every 24000 km
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PERIODIC MAINTENANCE AND ADJUSTMENT
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Tires Tires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10511
Never overload your vehicle. Opera-
tion of an overloaded vehicle couldcause an accident.Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-place the tire immediately.
TIPThe tire tread depth limits may differ
from country to country. Always complywith the local regulations.
Tire information
This vehicle is equipped with cast
wheels and tube tires.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha Motor Co., Ltd.
Tire air pressure (measured on cold
tires):
Front:200 kPa (2.00 kgf/cm
2, 29 psi)
Rear: 250 kPa (2.50 kgf/cm2, 36 psi)
Maximum load*:
87 kg (192 lb)
* Total weight of rider, cargo and ac- cessories
1. Tire tread depth
2. Tire sidewall
12
Minimum tire tread depth (front and
rear): 1.6 mm (0.06 in)
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SCOOTER CARE AND STORAGE
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89
der to extend the battery life, it is
recommended to charge the
battery until the battery level in-
dicator reaches a maximum of
2–3 segments. A lower or higher
charge is not recommended.

Make sure that the amount of
charge remaining in the battery
does not fall below 20% (less
than the last segment of the bat-
tery level indicator). If stored un-
der this condition for a long
period of time, the battery can
be damaged and may need to be
replaced depending on how low
the capacity is.

Once the battery is completely
depleted, it cannot be re-
charged.

After long-term storage, be sure
to recharge the battery before
using the vehicle. (It may takelonger to charge than usual.)
Before storing your scooter for several
months: 1. Follow all the instructions in the “Care” section of this chapter.
2. Lubricate all control cables and the pivoting points of all levers as well
as the centerstand.
3. Check and, if necessary, correct the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
TIPMake any necessary repairs beforestoring the scooter.
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SPECIFICATIONS
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Dimensions:Overall length: 1565 mm (61.6 in)
Overall width: 600 mm (23.6 in)
Overall height: 990 mm (39.0 in)
Seat height:
745 mm (29.3 in)
Wheelbase: 1080 mm (42.5 in)
Ground clearance: 110 mm (4.33 in)
Minimum turning radius:
1700 mm (66.9 in)Weight:Curb weight: 56 kg (123 lb)Chassis:Frame type: Backbone
Caster angle: 25.00 
Trail:
75 mm (3.0 in)Front tire:Type: With tube
Size:
60/100-12 36J
Manufacturer/model: INOUE RUBBER/MB80
Rear tire:Type:
With tube
Size: 60/100-12 36J
Manufacturer/model: INOUE RUBBER/MB80
Maximum load:
87 kg (192 lb)
* (Total weight of rider, cargo and accesso- ries)Tire air pressure (measured on cold
tires):Front: 200 kPa (2.00 kgf/cm
2, 29 psi)
Rear: 250 kPa (2.50 kgf/cm2, 36 psi)
Front wheel:Rim size: 12 x 1.50Rear wheel:Rim size:
12 x 1.50Front brake:Type: Drum brake
Operation:
Right hand operationRear brake:Type: Drum brake
Operation:
Left hand operation
Front suspension:Type: Telescopic fork
Spring/shock absorber type: Coil spring
Wheel travel: 50.0 mm (1.97 in)Rear suspension:Type: Unit swing
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
55.0 mm (2.17 in)Headlight:Bulb type: Halogen bulbBulb voltage, wattage  quantity:Headlight:
12 V, 35.0 W/35.0 W  1
Tail/brake light: 12 V, 5.0 W/21.0 W  1
Front turn signal light:
12 V, 10.0 W  2
Rear turn signal light: 12 V, 10.0 W  2
Warning indicator light: LED
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