2018 YAMAHA AEROX50 ignition

Instrument and control functions
3-1
3
EAU10462
Main switch/steering lockThe main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAUS1382
ON “ ”
All electrical circuits are supplied with
power, the meter lighting comes on,
and the engine can be started. The key
cannot be removed.TIPThe headlight and taillight come on au-
tomatically when the engine is started.
EAU76120
(off)
All electrical systems are off. The key
can be removed.
WARNING
EWA15351
Never turn the key to “ ” or “ ”
while the vehicle is moving. Other-
wise the electrical systems will be
switched off, which may result in
loss of control or an accident.
EAUM3121
LOCK “ ”
The steering is locked, and all electrical
systems are off. The key can be re-
moved.To lock the steering
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “ ” po-
sition, and then turn it to “ ” while
still pushing it.
3. Remove the key.TIPIf the steering will not lock, try turning
the handlebars back to the right slight-
ly.1. Push.
2. Turn.
U1GBE1E0.book Page 1 Tuesday, October 17, 2017 11:45 AM

Instrument and control functions
3-8
3
WARNING
EWA11092
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
EAU13222
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately
wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may
deteriorate painted surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15152
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gasoline
by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-1. Fuel tank filler tube
2. Maximum fuel levelZAUM0923
1
2
U1GBE1E0.book Page 8 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-28
6
EAU24331
License plate lightIf the license plate light does not come
on, have a Yamaha dealer check the
electrical circuit or replace the bulb.
EAU25883
TroubleshootingAlthough Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your scooter re-
quire any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from waterheaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or prop-
erty damage.
U1GBE1E0.book Page 28 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-29
6
EAUM3290
Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.
DryWet
The engine does not start.
Check the ignition.
Operate the electric
starter or the kickstarter.
Check the electrolyte and battery
lead connections, and charge the
battery if necessary.
Operate the electric starter or the
kickstarter.
U1GBE1E0.book Page 29 Tuesday, October 17, 2017 11:45 AM

Specifications
8-2
8
Front tire:Type:
Tubeless
Size:
120/70-13 53P
Manufacturer/model:
MICHELIN/POWER PURE SCRear tire:Type:
Tubeless
Size:
130/60-13 53P
Manufacturer/model:
MICHELIN/POWER PURE SCLoading:Maximum load:
182 kg (401 lb)
(Total weight of rider, passenger, cargo
and accessories)Tire air pressure (measured on cold
tires):1 person:
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
150 kPa (1.50 kgf/cm², 22 psi)
2 persons:
Front:
160 kPa (1.60 kgf/cm², 23 psi)
Rear:
170 kPa (1.70 kgf/cm², 25 psi)Front wheel:Wheel type:
Cast wheelRim size:
13 x MT3.00
Rear wheel:Wheel type:
Cast wheel
Rim size:
13 x MT3.50Front brake:Type:
Hydraulic single disc brake
Specified brake fluid:
DOT 4Rear brake:Type:
Hydraulic single disc brake
Specified brake fluid:
DOT 4Front suspension:Type:
Telescopic fork
Spring:
Coil spring
Shock absorber:
Hydraulic damper
Wheel travel:
80 mm (3.1 in)Rear suspension:Type:
Unit swing
Spring:
Coil spring
Shock absorber:
Hydraulic damperWheel travel:
64 mm (2.5 in)
Electrical system:System voltage:
12 V
Ignition system:
TCI
Charging system:
AC magnetoBattery:Model:
GS CB5L-B
Voltage, capacity:
12 V, 5.0 Ah (10 HR)Headlight:Bulb type:
Halogen bulbBulb wattage:Headlight:
35.0 W/35.0 W x 1
Brake/tail light:
21.0 W/5.0 W × 1
Front turn signal light:
10.0 W × 2
Rear turn signal light:
10.0 W × 2
Auxiliary light:
5.0 W × 1
License plate light:
5.0 W × 1
Meter lighting:
LED
High beam indicator light:
LED
U1GBE1E0.book Page 2 Tuesday, October 17, 2017 11:45 AM