2003 YAMAHA AEROX50 brake light

EAU00027
INSTRUMENT AND CONTROL FUNCTIONS
Main switch / steering lock .................................................................. 3-1
Indicator and warning lights ................................................................ 3-2
Coolant temperature warning light ...................................................... 3-2
Speedometer unit ................................................................................ 3-3
Tachometer (depends on model) ........................................................ 3-3
Fuel gauge .......................................................................................... 3-3
Handlebar switches ............................................................................. 3-4
Front brake lever ................................................................................. 3-5
Rear brake lever .................................................................................. 3-5
Fuel tank cap ...................................................................................... 3-5
Fuel .....................................................................................................\o 3-6
Catalytic converter .............................................................................. 3-7
Kick starter .......................................................................................... 3-7
2-stroke engine oil tank cap ................................................................ 3-8
2-stroke engine oil ............................................................................... 3-8
Starter (choke) lever ............................................................................ 3-9
Rider seat ............................................................................................ 3-9
Storage compartment A .................................................................... 3-10
Storage compartment B .................................................................... 3-11
Adjusting the shock absorber assembly (depends on model) ........... 3-11
3

INSTRUMENT AND CONTROL FUNCTIONS
3
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Handlebar switches
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Dimmer switch “/”
Set this switch to “
” for the high beam
and to “
” for the low beam.
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Turn signal switch “/”
To signal a right-hand turn, push this switch
to “
”. To signal a left-hand turn, push this
switch to “
”. When released, the switch
returns to the center position. To cancel the
turn signal lights, push the switch in after it
has returned to the center position.
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Horn switch “”
Press this switch to sound the horn.
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Start switch “”
Push this switch while applying the front
or rear brake to crank the engine with
the starter.
EC000005
See page 5-2 for starting instruc-
tions prior to starting the engine.
1
2 3
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1
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1. Horn switch “”
2. Turn signal switch “/”
3. Dimmer switch “
/”
CAUTION:
1. Start switch “”
3-4

4
PRE-OPERATION CHECKS
ITEM CHECKS PAGE
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-11
• If necessary, have Yamaha dealer adjust cable free play
and lubricate cable and grip housing.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-11 — 6-13
• Check air pressure.
• Correct if necessary.
Brake levers• Make sure that operation is smooth.
6-13, 6-16
• Lubricate lever pivoting points if necessary.
Centerstand• Make sure that operation is smooth.
6-16
• Lubricate pivot if necessary.
Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.
—
• Tighten if necessary.
Instruments, lights• Check operation.
3-3, 3-4, 6-20 — 6-22
signals and switches• Correct if necessary.
Battery• Check fluid level.
6-18
• Fill with distilled water if necessary.
4-2

OPERATION AND IMPORTANT RIDING POINTS
5
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EW000129
•Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or
function that you do not
thoroughly understand.
•Never start the engine or
operate it in a closed area for
any length of time. Exhaust fu-
mes are poisonous, and
inhaling them can cause loss of
consciousness and death
within a short time. Always
make sure that there is
adequate ventilation.
•For safety, always start the
engine with the centerstand
down.
WARNING
CAUTION:
CAUTION:
PUSH
OPEN
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5-1
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Starting the engine
1. Turn the key to "", then when the
oil level warning light comes on,
turn it to "
".
EC000045
If the oil level warning light does not
come on, have a Yamaha dealer
check the electrical circuit.
2. Turn the starter (choke) on and
completely close the throttle. (See
page 3-9 for starter (choke)
operation.)3. Start the engine by pushing the
start switch or by pushing the
kickstarter lever down, while
applying the front or rear brake.
NOTE :
If the engine fails to start by pushing
the start switch, release the switch, wait
a few seconds, and then try again. Each
starting attempt should be as short as
possible to preserve the battery. Do not
crank the engine more than 5 seconds
on any one attempt. If the engine does
not start with the starter motor, try using
the kickstarter.
4. After starting the engine, move the
starter (choke) lever back halfway.
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For maximum engine life, never
accelerate hard when the engine is
cold!

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PERIODIC MAINTENANCE AND MINOR REPAIR
Periodic maintenance and lubrication chart ............ 6-2
Removing and installing cowling and panel ............ 6-5
Cowling A ................................................................ 6-5
Panel A .................................................................... 6-5
Checking the spark plug ......................................... 6-6
Final transmission oil .............................................. 6-7
Coolant .................................................................... 6-8
Cleaning the air filter element ................................. 6-9
Adjusting the carburetor ........................................ 6-10
Adjusting the throttle cable free play ..................... 6-11
Tires ...................................................................... 6-11
Wheels .................................................................. 6-13
Adjusting the front and rear brake lever
free play ................................................................ 6-13
Checking the front and rear brake pads ................ 6-14
Checking the brake fluid level ............................... 6-14
6 Changing the brake fluid ....................................... 6-15
Adjusting the autolube pump ................................ 6-15
Checking and lubricating the cables ..................... 6-16
Lubricating the front and rear brakes levers .......... 6-16
Checking and lubricating the centerstand ............. 6-16
Checking the front fork .......................................... 6-17
Checking the steering ........................................... 6-17
Checking the wheel bearings ................................ 6-18
Battery ................................................................... 6-18
Replacing the fuse ................................................ 6-20
Replacing a headlight bulb .................................... 6-20
Replacing tail/brake light bulb ............................... 6-21
Replacing a turn signal light bulb .......................... 6-22
Troubleshooting ..................................................... 6-22
Troubleshooting chart ............................................ 6-23
Engine overheating ............................................... 6-24

PERIODIC MAINTENANCE AND MINOR REPAIR
6
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NOTE :
•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 Moving parts and cables• Lubricate.√√√√ √
22 *Lights, signals• Check operation.
√√√√√ √
and switches• Adjust headlight beam.
ODOMETER READING (x 1,000 km)
NO. ITEMCHECK OR MAINTENANCE JOB
1
ANNUAL
CHECK
6121824
6-4

PERIODIC MAINTENANCE AND MINOR REPAIR
65. Place a new headlight bulb into
position, and then secure it with
the bulb holder.
6. Connect the headlight coupler
and install the cowling A.
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Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the bulb,
and the bulb life will be adversely
affected. Thoroughly clean off any
dirt and fingerprints on the headlight
bulb using a cloth moistened with
alcohol or thinner.
CAUTION:
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6-21
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Replacing the brake/taillight
bulb
1. Remove the brake/taillight lens by
removing the screws.
2. Remove the brake/taillight bulb
holder by turning it 1/4 turn
counter-clockwise.
3. Remove the defective bulb.
4. Place a new bulb into position, and
then secure it with the bulb holder.
5. Place the brake/taillight lens in the
original position, and then install
the screw.

SCOOTER CARE AND STORAGE
7
•Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.
•Do not use high-pressure
washers or steam-jet cleaners
since they cause water
seepage and deterioration in
the following areas: seals (of
wheel and swingarm bearings,
fork and brakes), electric
components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.
•For scooters equipped with a
windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the
windshield. Test the product on
a small hidden part of the
windshield to make sure that it
does not leave any marks. If the
windshield is scratched, use a
quality plastic polishing
compound after washing.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain, near the sea
or on salt-sprayed roads
Since sea salt or salt sprayed on the
roads during winter are extremely cor-
rosive in combination with water, carry
out the following steps after each ride
in the rain, near the sea or on salt-
sprayed roads.
NOTE :
Salt sprayed on roads in the winter may
remain well into spring.
1. Clean the scooter with cold water
and a mild detergent after the
engine has cooled down.
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Do not use warm water since it
increases the corrosive action of the
salt.
2. Apply a corrosion protection spray
on all metal, including chrome-
and nickel-plated, surfaces to
prevent corrosion.
CAUTION:
7-2