2018 YAMAHA AEROX50 air filter

Table of contentsSafety information............................ 1-1
Further safe-riding points ............... 1-5
Description....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Instrument and control functions... 3-1
Main switch/steering lock............... 3-1
Indicator lights and warning
lights............................................ 3-2
Multi-function display ..................... 3-3
Handlebar switches ........................ 3-6
Front brake lever ............................ 3-7
Rear brake lever ............................. 3-7
Fuel tank cap .................................. 3-7
Fuel ................................................. 3-8
Catalytic converter ....................... 3-10
Kickstarter .................................... 3-10
Seats ............................................ 3-11
Storage compartment .................. 3-12
For your safety – pre-operation
checks............................................... 4-1
Operation and important riding
points................................................ 5-1
Starting a cold engine .................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-2Braking ............................................ 5-3
Tips for reducing fuel
consumption ................................ 5-3
Engine break-in ............................... 5-4
Parking ............................................ 5-4
Periodic maintenance and
adjustment........................................ 6-1
Periodic maintenance chart for the
emission control system .............. 6-2
General maintenance and
lubrication chart ........................... 6-3
Removing and installing the
cowling and panel........................ 6-6
Checking the spark plug ................. 6-7
Engine oil and oil strainer ................ 6-9
Final transmission oil..................... 6-11
Coolant.......................................... 6-12
Replacing the air filter element
and cleaning the check hose..... 6-13
Checking the throttle grip free
play ............................................ 6-14
Valve clearance ............................. 6-14
Tires .............................................. 6-15
Cast wheels................................... 6-16
Checking the front and rear brake
lever free play ............................ 6-17
Checking the front and rear brake
pads ........................................... 6-17
Checking the brake fluid level ....... 6-18
Changing the brake fluid ............... 6-19Checking and lubricating the
cables ........................................ 6-19
Checking and lubricating the
throttle grip and cable ............... 6-20
Lubricating the front and rear
brake levers ............................... 6-20
Checking and lubricating the
centerstand ............................... 6-21
Checking the front fork ................. 6-21
Checking the steering................... 6-22
Checking the wheel bearings ....... 6-22
Battery .......................................... 6-23
Replacing the fuse ........................ 6-24
Replacing the headlight bulb ........ 6-25
Replacing the auxiliary light bulb
(for CHE) .................................... 6-26
Replacing the tail/brake light
bulb ........................................... 6-27
Replacing a turn signal light
bulb ........................................... 6-27
License plate light......................... 6-28
Troubleshooting............................ 6-28
Troubleshooting charts................. 6-29
Scooter care and storage................ 7-1
Matte color caution......................... 7-1
Care ................................................ 7-1
Storage ........................................... 7-4U1GBE1E0.book Page 1 Tuesday, October 17, 2017 11:45 AM

Description
2-1
2
EAU10411
Left view
123
45
6
7
1. Coolant level check window (page 6-12)
2. Storage compartment (page 3-12)
3. Air filter element (page 6-13)
4. Kickstarter (page 3-10)
5. Final transmission oil filler bolt (page 6-11)
6. Final transmission oil drain bolt (page 6-11)
7. Engine oil drain bolt (page 6-9)U1GBE1E0.book Page 1 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-3
6
EAU1771B
General maintenance and lubrication chartNO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)6000 km
(3500 mi)12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)
1*Air filter element• Replace.√√√√√
2 Air filter check hose• Clean.√√√√√
3*Battery• Check electrolyte level and spe-
cific gravity.
• Make sure that the breather hose
is properly routed.√√√√√
4*Front brake• Check operation, fluid level and
vehicle for fluid leakage.√√√√√√
• Replace brake pads. Whenever worn to the limit
5*Rear brake• Check operation, fluid level and
vehicle for fluid leakage.√√√√√√
• Replace brake pads. Whenever worn to the limit
6*Brake hoses• Check for cracks or damage.
• Check for correct routing and
clamping.√√√√√
• Replace. Every 4 years
7*Brake fluid• Change. Every 2 years
8*Wheels• Check runout and for damage.√√√√
9*Tires• Check tread depth and for dam-
age.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.√√√√√
U1GBE1E0.book Page 3 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-5
6
EAUM2071
TIPThe air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.21*Cooling system• Check coolant level and vehicle
for coolant leakage.√√√√√
• Change coolant. Every 3 years
22Final transmission
oil• Check vehicle for oil leakage.√√ √
• Change.√√√√√
23*V-belt• Replace. Every 10000 km (6000 mi)
24*Front and rear
brake switches• Check operation.√√√√√√
25Moving parts and
cables• Lubricate.√√√√√
26*Throttle grip• Check operation.
• Check throttle grip free play, and
adjust if necessary.
• Lubricate cable and grip housing.√√√√√
27*Lights, signals and
switches• Check operation.
• Adjust headlight beam.√√√√√√ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)6000 km
(3500 mi)12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)U1GBE1E0.book Page 5 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-13
6wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced.
[ECA10473]
5. Close the reservoir cap, and then
install the panel.
EAU33032
Changing the coolant
The coolant must be changed at the in-
tervals specified in the periodic main-
tenance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove
the radiator cap when the engine is
hot.
[EWA10382]EAUT1492
Replacing the air filter ele-
ment and cleaning the check
hoseThe air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas. In addition,
the air filter check hose must be fre-
quently checked and cleaned if neces-
sary.
1. Coolant reservoir capCoolant reservoir capacity:
0.26 L (0.27 US qt, 0.23 Imp.qt)ZAUM1075
1
1. Air filter case cover
2. Air filter element
3. Air filter check hoseZAUM1555
1
2
U1GBE1E0.book Page 13 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-14
6 To replace the air filter element
1. Remove the air filter case cover by
removing the screws.
2. Pull the air filter element out.
3. Insert a new air filter element into
the air filter case as shown.
NOTICE: Make sure that the air
filter element is properly seated
in the air filter case. The engine
should never be operated with-
out the air filter element in-
stalled, otherwise the piston(s)
and/or cylinder(s) may become
excessively worn.
[ECA10482]
4. Install the air filter case cover by
installing the screws.
To clean the air filter check hose
1. Check the hose on the side of the
air filter case for accumulated dirt
or water.
2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
EAU21386
Checking the throttle grip free
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21403
Valve clearanceThe valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine
noise, and eventually engine damage.
To prevent this from occurring, have
your Yamaha dealer check and adjust
the valve clearance at regular intervals.TIPThis service must be performed when
the engine is cold.
1. Throttle grip free play
Throttle grip free play:
3.0–5.0 mm (0.12–0.20 in)1ZAUM0051
U1GBE1E0.book Page 14 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

10-1
10
Index
AAcceleration and deceleration ................ 5-2
Air filter element and check hose,
replacing and cleaning ....................... 6-13
Auxiliary light bulb, replacing ............... 6-26BBattery .................................................. 6-23
Brake fluid, changing............................ 6-19
Brake fluid level, checking.................... 6-18
Brake lever, front .................................... 3-7
Brake lever, rear ..................................... 3-7
Brake levers, lubricating ....................... 6-20
Braking ................................................... 5-3CCables, checking and lubricating ......... 6-19
Care ........................................................ 7-1
Catalytic converter ............................... 3-10
Centerstand, checking and
lubricating........................................... 6-21
Coolant ................................................. 6-12
Coolant temperature warning light ......... 3-2
Cowling and panel, removing and
installing ............................................... 6-6DData recording, vehicle........................... 9-2
Diagnostic connector ............................. 9-2
Dimmer switch........................................ 3-6EEngine break-in ...................................... 5-4
Engine oil ................................................ 6-9
Engine trouble warning light ................... 3-3FFinal transmission oil ............................ 6-11Front and rear brake lever free play,
checking ............................................ 6-17
Front and rear brake pads, checking ... 6-17
Front fork, checking ............................. 6-21
Fuel ........................................................ 3-8
Fuel consumption, tips for reducing ...... 5-3
Fuel level warning light........................... 3-2
Fuel tank cap.......................................... 3-7
Fuse, replacing..................................... 6-24
HHandlebar switches ............................... 3-6
Headlight bulb, replacing ..................... 6-25
High beam indicator light ....................... 3-2
Horn switch ............................................ 3-6IIdentification numbers ........................... 9-1
Indicator lights and warning lights ......... 3-2KKickstarter ............................................ 3-10LLicense plate light ................................ 6-28MMain switch/steering lock ...................... 3-1
Maintenance and lubrication, periodic... 6-3
Maintenance, emission control
system ................................................. 6-2
Matte color, caution ............................... 7-1
Model label............................................. 9-1
Multi-function display............................. 3-3PParking ................................................... 5-4
Part locations ......................................... 2-1SSafe-riding points................................... 1-5Safety information................................... 1-1
Seats ..................................................... 3-11
Spark plug, checking .............................. 6-7
Specifications ......................................... 8-1
Starting a cold engine............................. 5-1
Starting off .............................................. 5-2
Start switch ............................................. 3-6
Steering, checking ................................ 6-22
Storage ................................................... 7-4
Storage compartment........................... 3-12
TTail/brake light bulb, replacing ............. 6-27
Throttle grip and cable, checking and
lubricating ........................................... 6-20
Throttle grip free play, checking ........... 6-14
Tires ...................................................... 6-15
Troubleshooting .................................... 6-28
Troubleshooting charts ......................... 6-29
Turn signal indicator light ....................... 3-2
Turn signal light bulb, replacing............ 6-27
Turn signal switch ................................... 3-6VValve clearance..................................... 6-14
Vehicle identification number ................. 9-1WWheel bearings, checking .................... 6-22
Wheels .................................................. 6-16
U1GBE1E0.book Page 1 Tuesday, October 17, 2017 11:45 AM