2009 YAMAHA AEROX50 steering

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
Further safe-riding points ................1-5
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
Speedometer unit ...........................3-3
Tachometer (if equipped) ................3-3
Fuel gauge ......................................3-4
Handlebar switches ........................3-4
Front brake lever ............................3-5
Rear brake lever .............................3-5
Fuel tank cap ..................................3-5
Fuel .................................................3-6
Catalytic converters ........................3-7
2-stroke engine oil ..........................3-8
Kickstarter .......................................3-9
Rider seat .......................................3-9
Storage compartments .................3-10
Adjusting the shock absorber
assembly (if equipped) ..............3-11FOR 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 ........ 5-2
Braking ........................................... 5-2
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Periodic maintenance and
lubrication chart .......................... 6-2
Removing and installing the
cowling and panel ....................... 6-6
Checking the spark plug ................. 6-7
Final transmission oil ...................... 6-8
Coolant ........................................... 6-9
Cleaning the air filter element ...... 6-10
Adjusting the carburetor ............... 6-11
Checking the throttle cable free
play ........................................... 6-11
Tires ............................................. 6-12
Cast wheels .................................. 6-13
Checking the front and rear brake
lever free play ........................... 6-14Checking the front and rear
brake pads ................................ 6-14
Checking the brake fluid level ...... 6-15
Changing the brake fluid .............. 6-16
Checking and lubricating the
throttle grip and cable ............... 6-16
Lubricating the front and rear
brake levers .............................. 6-16
Checking and lubricating the
centerstand ............................... 6-17
Checking the front fork ................. 6-17
Checking the steering .................. 6-18
Checking the wheel bearings ....... 6-18
Battery ......................................... 6-19
Replacing the fuse ....................... 6-20
Replacing the headlight bulb ....... 6-21
Replacing the tail/brake light
bulb ........................................... 6-22
Replacing a turn signal light
bulb ........................................... 6-22
Troubleshooting ........................... 6-23
Troubleshooting charts ................ 6-24
SCOOTER CARE AND STORAGE... 7-1
Care ............................................... 7-1
Storage .......................................... 7-3
SPECIFICATIONS ............................ 8-1
CONSUMER INFORMATION............ 9-1
Identification numbers .................... 9-1U3C6E1E0.book Page 1 Friday, August 8, 2008 10:09 AM

SAFETY INFORMATION
1-3
1


Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.


Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.


Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution of
the scooter is changed. To avoid the
possibility of an accident, use extreme
caution when adding cargo or accesso-
ries to your scooter. Use extra care
when riding a scooter that has added
cargo or accessories. Here, along with
the information about accessories be-
low, are some general guidelines to fol-
low if loading cargo to your scooter:The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.
When loading within this weight limit,
keep the following in mind:


Cargo and accessory weight
should be kept as low and close to
the scooter as possible. Securely
pack your heaviest items as close
to the center of the vehicle as pos-
sible and make sure to distribute
the weight as evenly as possible
on both sides of the scooter to min-
imize imbalance or instability.


Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securelyattached to the scooter before
riding. Check accessory mounts
and cargo restraints frequently.
Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Such items
can create unstable handling or
a slow steering response.


This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail-
able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection to
Yamaha manufacture parts and acces-
sories or offer other modifications for
Yamaha vehicles. Yamaha is not in a
position to test the products that these
Maximum load:
180 kg (397 lb)
U3C6E1E0.book Page 3 Friday, August 8, 2008 10:09 AM

SAFETY INFORMATION
1-4
1aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories, and
Modifications
While you may find aftermarket prod-
ucts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories
or modifications are not suitable be-
cause of potential safety hazards to you
or others. Installing aftermarket prod-
ucts or having other modifications per-
formed to your vehicle that change any
of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or death.
You are responsible for injuries related
to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Load-
ing” when mounting accessories.


Never install accessories or carry
cargo that would impair the perfor-
mance of your scooter. Carefully
inspect the accessory before using
it to make sure that it does not in
any way reduce ground clearance
or cornering clearance, limit sus-
pension travel, steering travel or
control operation, or obscure lights
or reflectors.
Accessories fitted to the handle-
bar or the front fork area can
create instability due to improper
weight distribution or aerody-
namic changes. If accessories
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
Bulky or large accessories may
seriously affect the stability of
the scooter due to aerodynamic
effects. Wind may attempt to lift
the scooter, or the scooter may
become unstable in cross
winds. These accessories may
also cause instability when
passing or being passed by
large vehicles.Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the free-
dom of movement of the opera-
tor and may limit control ability,
therefore, such accessories are
not recommended.


Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
scooter’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to provide
the best combination of handling, brak-
ing, and comfort. Other tires, rims, siz-
es, and combinations may not be
appropriate. Refer to page 6-12 for tire
specifications and more information on
replacing your tires.
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DESCRIPTION
2-1
2
EAU10410
Left view
1
23
4
6 8
9
7
5
1. Rear brake lever (page 3-5)
2. Left handlebar switches (page 3-4)
3. Speedometer unit (page 3-3)
4. Main switch/steering lock (page 3-1)
5. Final transmission oil filler cap (page 6-8)
6. Centerstand (page 6-17)
7. Kickstarter (page 3-9)
8. Air filter element (page 6-10)9. Coolant level check window (page 6-9)U3C6E1E0.book Page 1 Friday, August 8, 2008 10:09 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU10640
ON“”
All electrical circuits are supplied with
power, and the engine can be started.
The key cannot be removed.TIPThe headlight, meter lighting and tail-
light come on automatically when theengine is started.
EAU10661
OFF“”
All electrical systems are off. The key
can be removed.
WARNING
EWA10061
Never turn the key to“” or“”
while the vehicle is moving. Other-
wise the electrical systems will be
switched off, which may result inloss of control or an accident.
EAU10670
CHECK“”
The 2-stroke engine oil level warning
light should come on. (See page 3-2.)
EAU10681
LOCK“”
The steering is locked, and all electrical
systems are off. The key can be re-
moved.
To lock the steering1. Turn the handlebars all the way to
the left.
2. Push the key in from the“” posi-
tion, and then turn it to“” while
still pushing it.
3. Remove the key.To unlock the steering
Push the key in, and then turn it to“”
while still pushing it.
PUSHOPEN
ZAUM0253
U3C6E1E0.book Page 1 Friday, August 8, 2008 10:09 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
6
7*Brake hosesCheck for cracks or damage.√√√√√
Replace. Every 4 years
8*WheelsCheck runout and for damage.√√√√
9*TiresCheck tread depth and for dam-
age.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√√
10*Wheel bearingsCheck bearing for looseness or
damage.√√√√
11*Steering bearingsCheck bearing play and steering
for roughness.√√√√√
Lubricate with lithium-soap-based
grease.Every 24000 km (14000 mi)
12*Chassis fastenersMake sure that all nuts, bolts and
screws are properly tightened.√√√√√
13Front brake lever
pivot shaftLubricate with silicone grease.√√√√√
14Rear brake lever
pivot shaftLubricate with silicone grease.√√√√√
15 CenterstandCheck operation.
Lubricate.√√√√√
16*Front forkCheck operation and for oil leak-
age.√√√√
17*Shock absorber as-
semblyCheck operation and shock ab-
sorber for oil leakage.√√√√ 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)
U3C6E1E0.book Page 3 Friday, August 8, 2008 10:09 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
NOTICE
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
EAU45511
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place the vehicle on the center-
stand. WARNING! To avoid inju-
ry, securely support the vehicle
so there is no danger of it falling
over.
[EWA10751]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23290
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
ZAUM0296
ZAUM0297
U3C6E1E0.book Page 18 Friday, August 8, 2008 10:09 AM

INDEXAAcceleration and deceleration................. 5-2
Air filter element, cleaning..................... 6-10BBattery................................................... 6-19
Brake fluid, changing ............................ 6-16
Brake fluid level, checking .................... 6-15
Brake lever, front..................................... 3-5
Brake lever, rear ..................................... 3-5
Brake levers, lubricating........................ 6-16
Braking .................................................... 5-2CCarburetor,adjusting ............................. 6-11
Care ........................................................ 7-1
Catalytic converters ................................ 3-7
Centerstand, checking and
lubricating ........................................... 6-17
Coolant.................................................... 6-9
Coolant temperature warning light .......... 3-2
Cowling and panel, removing and
installing................................................ 6-6DDimmer switch ........................................ 3-4EEngine break-in ....................................... 5-3
Engine oil ................................................ 3-8FFinal transmission oil .............................. 6-8
Front and rear brake lever free play,
checking ............................................. 6-14
Front and rear brake pads, checking .... 6-14
Front fork, checking .............................. 6-17
Fuel ......................................................... 3-6
Fuel consumption, tips for reducing ........ 5-3Fuel gauge.............................................. 3-4
Fuel tank cap .......................................... 3-5
Fuse, replacing ..................................... 6-20
HHandlebar switches ................................ 3-4
Headlight bulb, replacing ...................... 6-21
High beam indicator light ........................ 3-2
Horn switch ............................................. 3-4IIdentification numbers ............................ 9-1
Indicator and warning lights .................... 3-2KKey identification number ....................... 9-1
Kickstarter............................................... 3-9MMain switch/steering lock........................ 3-1
Model label ............................................. 9-2OOil level warning light.............................. 3-2PParking ................................................... 5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ..................................................... 6-2RRider seat ............................................... 3-9SSafe-riding points.................................... 1-5
Safety information................................... 1-1
Shock absorber assembly, adjusting
(if equipped) ....................................... 3-11
Spark plug, checking .............................. 6-7
Specifications ......................................... 8-1
Speedometer unit ................................... 3-3Starting a cold engine ............................. 5-1
Starting off ............................................... 5-2
Start switch.............................................. 3-4
Steering, checking................................. 6-18
Storage.................................................... 7-3
Storage compartments .......................... 3-10
TTachometer (if equipped) ........................ 3-3
Tail/brake light bulb, replacing .............. 6-22
Throttle cable free play, checking ......... 6-11
Throttle grip and cable, checking and
lubricating ........................................... 6-16
Tires ...................................................... 6-12
Troubleshooting .................................... 6-23
Troubleshooting charts.......................... 6-24
Turn signal indicator light ........................ 3-2
Turn signal light bulb, replacing ............ 6-22
Turn signal switch ................................... 3-4VVehicle identification number .................. 9-1WWheel bearings, checking ..................... 6-18
Wheels .................................................. 6-13
U3C6E1E0.book Page 1 Friday, August 8, 2008 10:09 AM