2018 YAMAHA AEROX50 oil type

Periodic maintenance and adjustment
6-9
6
EAUM3171
Engine oil and oil strainerThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil strainer
cleaned at the intervals specified in the
periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the scooter on the center-
stand. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.3. Wait a few minutes until the oil set-
tles, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
TIPThe engine oil should be between the
minimum and maximum level marks.4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
To change the engine oil and clean
the oil strainer
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.3. Remove the engine oil filler cap
and the engine oil drain bolts A
and B to drain the oil from the
crankcase. NOTICE: When re-
moving the engine oil drain bolt
B, the O-ring, compression
spring, and oil strainer will fall
out. Take care not to lose these
parts.
[ECAT1022]
1. Engine oil filler cap
2. Maximum level mark
3. Minimum levelZAUM1071
1. Engine oil drain bolt A
U1GBE1E0.book Page 9 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-19
6Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.
Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.
Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
EAUM1362
Changing the brake fluidHave a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the brake
hose replaced every four years and
whenever it is damaged or leaking.
EAU23098
Checking and lubricating the
cablesThe operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubri-
cated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or re-
place it. WARNING! Damage to the
outer housing of cables may result
in internal rusting and cause inter-
ference with cable movement. Re-
place damaged cables as soon as
possible to prevent unsafe condi-
tions.
[EWA10712]
Recommended lubricant:
Yamaha cable lubricant or other
suitable cable lubricant
U1GBE1E0.book Page 19 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-25
6After removing and installing
the main fuse, be sure to turn
the main switch from “ ”
to “ ” three times in 3 seconds
intervals to initialize the idle
speed control system.
[ECAM1130]
3. Turn the key to “ ” and turn on
the electrical circuits to check if
the devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAUS1403
Replacing the headlight bulbIf the headlight bulb burns out, replace
it as follows.NOTICE
ECA10651
Take care not to damage the follow-
ing parts:
Headlight bulb
Do not touch the glass part of
the headlight bulb to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosity
of the bulb, and the bulb life will
be adversely affected. Thor-
oughly clean off any dirt and fin-
gerprints on the headlight bulb
using a cloth moistened with al-
cohol or thinner.
Headlight lens
Do not affix any type of tinted
film or stickers to the headlight
lens.
Do not use a headlight bulb of a
wattage higher than specified.
NOTICE
ECA10671
It is advisable to have a Yamaha
dealer perform this job.1. Place the scooter on the center-
stand.
2. Remove cowling A. (See page
6-6.)
3. Disconnect the headlight coupler.
4. Remove the headlight bulb cover.
Specified fuse:
15.0 A
1. Do not touch the glass part of the bulb.
U1GBE1E0.book Page 25 Tuesday, October 17, 2017 11:45 AM

Specifications
8-1
8
Dimensions:Overall length:
1870 mm (73.6 in)
Overall width:
700 mm (27.6 in)
Overall height:
1155 mm (45.5 in)
Seat height:
815 mm (32.1 in)
Wheelbase:
1275 mm (50.2 in)
Ground clearance:
130 mm (5.12 in)
Minimum turning radius:
2.0 m (6.56 ft)Weight:Curb weight:
101 kg (223 lb)Engine:Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train:
SOHC
Number of cylinders:
Single cylinder
Displacement:
49 cm³
Bore × stroke:
38.0 × 43.5 mm (1.50 × 1.71 in)
Compression ratio:
12.0 : 1Starting system:
Electric starter and kickstarter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-40
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change:
0.78 L (0.82 US qt, 0.69 Imp.qt)Final transmission oil:Type:
SAE 10W-30 type SE motor oil
Quantity:
0.10 L (0.11 US qt, 0.09 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):
0.26 L (0.27 US qt, 0.23 Imp.qt)
Radiator (including all routes):
0.52 L (0.55 US qt, 0.46 Imp.qt)Air filter:Air filter element:
Oil-coated paper elementFuel:Recommended fuel:
Premium unleaded gasoline (Gasohol (E10)
acceptable)Fuel tank capacity:
6.0 L (1.58 US gal, 1.32 Imp.gal)
Fuel reserve amount:
1.0 L (0.26 US gal, 0.22 Imp.gal)
Fuel injection:Throttle body:
ID mark:
10BKSpark plug(s):Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Dry, centrifugal, shoeDrivetrain:Primary reduction ratio:
1
Final drive:
Gear
Secondary reduction ratio:
52/13 × 44/12 (14.666)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic typeChassis:Frame type:
Underbone
Caster angle:
27.0 °
Trail:
85 mm (3.3 in)
U1GBE1E0.book Page 1 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