2018 YAMAHA AEROX50 lock

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
6-27
6
EAU24135
Replacing the tail/brake light
bulb1. Remove the tail/brake light lens by
removing the screws.
2. Remove the burnt-out bulb by
pushing it in and turning it coun-
terclockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screws. NOTICE: Do not over-
tighten the screws, otherwise
the lens may break.
[ECA10682]EAU24205
Replacing a turn signal light
bulb1. Remove the turn signal light lens
by removing the screw.
2. Remove the burnt-out bulb by
pushing it in and turning it coun-
terclockwise.3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw. NOTICE: Do not over-
tighten the screw, otherwise the
lens may break.
[ECA11192]
ZAUM0937
ZAUM0938ZAUM0939
U1GBE1E0.book Page 27 Tuesday, October 17, 2017 11:45 AM

Periodic maintenance and adjustment
6-30
6 Engine overheating
WARNING
EWAT1041
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the
detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
U1GBE1E0.book Page 30 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