Page 25 of 88

and do not keep more than one
immobilizer key on the same key ring!
Immobilizer system keys may cause
signal interference, which may pre-
vent the engine from starting.
2. If the engine starts, turn it off, and
try starting the engine with the
standard keys.
3. If one or both of the standard
keys do not start the engine, take
the vehicle, the code re-registe-
ring key and both standard keys
to a Yamaha dealer and have the
standard keys re-registered.
If the multi-function display indicates
any error codes, note the code num-
ber, and then have a Yamaha dealer
check the vehicle.
Clock mode
T
o set the clock:
1. Push the “SELECT” button and
“RESET” button together for at
least two seconds.
2. When the hour digits start flas-
hing, push the “RESET” button to
set the hours.3. Push the “SELECT” button, and
the minute digits will start flas-
hing.
4. Push the “RESET” button to set
the minutes.
5. Push the “SELECT” button and
then release it to start the clock.Ambient temperature display
Pushing the “SELECT” button for at
least two seconds switches the clock
display to the ambient temperature
display. This display shows the
ambient temperature from –10 °C to
50 °C in 1 °C increments. The tempe-
rature displayed may vary from the
ambient temperature. Pushing the
“SELECT” button for at least two
seconds switches the ambient tem-
perature display to the clock display.
TIP
If the ambient temperature falls
below –10 °C, a lower temperatu-
re than –10 °C will not be displa-
yed.
If the ambient temperature
climbs above 50 °C, a higher
temperature than 50 °C will not
be displayed.
The accuracy of the temperature
reading may be affected when
riding slowly (approximately
under 20 km/h (12.5 mi/h)) or
when stopped at traffic signals,
railroad crossings, etc.
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
37P-F8199-E1 19/2/10 05:09 Página 25
Page 28 of 88

EAU12950
Rear brake lever
1. Rear brake lever
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the hand-
lebar grip.
EAU12995
ABS (for ABS models)
The Yamaha ABS (Anti-lock Brake
System) features a dual electronic
control system, which acts on the
front and rear brakes independently.
The ABS securely controls wheel loc-
kup during emergency braking on
changing road surfaces and under
various weather conditions, thereby
maximizing tire adhesion and perfor-
mance while providing a smooth bra-
king action. The ABS is monitored by
an ECU, which will have recourse to
manual braking if a malfunction
occurs.
EWA10090
The ABS performs best on long
braking distances.
On certain (rough or gravel)
roads, the braking distance
may be longer with than wit-
hout the ABS. Therefore,
always keep a sufficient distan-
ce to the vehicle ahead to
match the riding speed.
TIP
The ABS performs a self-diagno-
sis test for a few seconds each
time the vehicle first starts off
after the key was turned to “ON”.
During this test, a “clicking” noi-
se can be heard from the front of
the vehicle, and if either brake
lever is even slightly applied, a
vibration can be felt at the lever,
but these do not indicate a mal-
function.
When the ABS is activated, the
brakes are operated in the usual
way. A pulsating action may be
felt at the brake levers, but this
does not indicate a malfunction.
This ABS has a test mode which
allows the owner to experience
the pulsating at the brake levers
when the ABS is operating.
However, special tools are requi-
red, so please consult your
Yamaha dealer when performing
this test.WARNING
INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
37P-F8199-E1 19/2/10 05:09 Página 28
Page 29 of 88
ECA16120
Keep any type of magnets (inclu-
ding magnetic pick-up tools, mag-
netic screwdrivers, etc.) away from
the front and rear wheel hubs,
otherwise the magnetic rotors
equipped in the wheel hubs may be
damaged, resulting in improper
performance of the ABS system.
1. Front wheel hub1. Rear wheel hub
EAUS1661
Fuel tank cap
To open the fuel tank cap
1. Open the fuel tank cap cover by
pushing in on the front end of it.
1. Fuel tank cap
2. Fuel tank cap cover
2. Insert the key in the lock and turn
it clockwise. The lock will be rele-
ased and the fuel tank cap can
be removed.
NOTICE
INSTRUMENT AND CONTROL FUNCTIONS
3-14
3
37P-F8199-E1 19/2/10 05:09 Página 29
Page 30 of 88

1. Lock
2. Fuel tank cap
To close the fuel tank cap
1. Be sure the match mark is facing
forward, and then push the fuel
tank cap into the original posi-
tion.
1. Match marks
2. Turn the key counterclockwise
and remove it.
3. Close the fuel tank cover.
EWA11091
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
EAU13221
Fuel
Make sure there is sufficient gasoline
in the tank.
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the engi-
ne and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the
vicinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank
filler hole. Stop filling when the
fuel reaches the bottom of the
filler tube. Because fuel expands
when it heats up, heat from the
engine or the sun can cause fuel
to spill out of the fuel tank.
WARNINGWARNING
INSTRUMENT AND CONTROL FUNCTIONS
3-15
3
37P-F8199-E1 19/2/10 05:09 Página 30
Page 32 of 88
ECA10701
Use only unleaded gasoline. The
use of leaded gasoline will cause
unrepairable damage to the cataly-
tic converter.
EAUT1040
Securing bracket
1. Securing bracket
To prevent theft, the securing bracket
can be used to chain the scooter to a
stationary object such as a lamppost
or a fence.
To secure the scooter with a chain or
cable lock, place the scooter on the
centerstand, pass the chain or cable
through the securing bracket and
around the stationary object, and then
lock the chain or cable lock.
EWAT1020
Be sure to remove the chain or
cable before riding, otherwise the
scooter may overturn, causing
damage or injury.
WARNINGNOTICE
INSTRUMENT AND CONTROL FUNCTIONS
3-17
3
37P-F8199-E1 19/2/10 05:09 Página 32
Page 33 of 88

EAU13932
Seat
To open the seat
1. Place the scooter on the centers-
tand.
2. Insert the key into the main
switch, and then turn it counter-
clockwise to “OPEN”.
1. Open
TIP
Do not push inward when turning the
key.
3. Fold the seat up.
1. Seat open position
To close the seat
1. Fold the seat down, and then
push it down to lock it in place.
2. Remove the key from the main
switch if the scooter will be left
unattended.
TIP
Make sure that the seat is properly
secured before riding.
EAUS1622
Storage compartments
Front storage compartment
To open the storage compartment
when it is locked, insert the key in the
lock, turn it counterclockwise, and
then grasp the lock while pushing the
button in.
To open the storage compartment
when it is unlocked, simply grasp the
lock while pushing the button in.
1. Open
2. Button
3. Front storage compartment lid
To lock the storage compartment,
push the lid into the original position,
insert the key in the lock, turn it clock-
wise, and then remove it.
21
3
INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
37P-F8199-E1 19/2/10 05:09 Página 33
Page 34 of 88

1. Lock
2. Front storage compartment lid
Rear storage compartment
The rear storage compartment is
located under the seat. (See page
3-18).
When storing the Owner’s Manual or
other documents in the storage com-
partment, be sure to wrap them in a
plastic bag so that they will not get
wet. When washing the vehicle, be
careful not to let any water enter the
storage compartment.
Two helmets can be stored in the sto-
rage compartment.
1. Rear storage compartmentECA10080
Keep the following points in mind
when using the storage compart-
ment.
Since the storage compart-
ment accumulates heat when
exposed to the sun, do not sto-
re anything susceptible to heat
inside it.
To avoid humidity from sprea-
ding through the storage com-
partment, wrap wet articles in
a plastic bag before storing
them in the compartment.
Since the storage compart-
ment may get wet while the
scooter is being washed, wrapany articles stored in the com-
partment in a plastic bag.
Do not keep anything valuable
or breakable in the storage
compartment.
EWA11171
Do not exceed the following loa-
ding limits:
Front storage compartment A:
1 kg (2 lb)
Rear storage compartment: 5
kg (11 lb)
Maximum load for the vehi-
cle: YP250R 186 kg (410 lb)
YP250RA 178.6 kg (394 lb)
WARNING
NOTICE
1
2
INSTRUMENT AND CONTROL FUNCTIONS
3-19
3
37P-F8199-E1 19/2/10 05:09 Página 34
Page 60 of 88

1. V-belt case air filter cover
2. V-belt case air filter element
3. Check the air filter element for
damage and replace it if neces-
sary.
4. Install the air filter element with
the colored side facing outward.
NOTICE: Make sure that each
filter element is properly sea-
ted in its case. The engine
should never be operated wit-
hout the filter elements insta-
lled, otherwise the piston(s)
and/or cylinder(s) may become
excessively worn.
[ECA10531]
5. Install the V-belt case air filter
cover by installing the screws.
EAU48431
Adjusting the throttle cable
free play
1. Throttle cable free play
The throttle cable free play should
measure 3.0–5.0 mm (0.12–0.20 in) at
the inner edge of the throttle grip.
Periodically check the throttle cable
free play and, if necessary, adjust it as
follows.
TIP
The engine idling speed must be
correctly adjusted before checking
and adjusting the throttle cable free
play.
1. Slide the rubber cover back.
2. Loosen the locknut.3. To increase the throttle cable free
play, turn the adjusting nut in
direction (a). To decrease the
throttle cable free play, turn the
adjusting nut in direction (b).
1. Rubber protector
2. Locknut
3. Adjusting nut
4. Tighten the locknut and then sli-
de the rubber cover to its original
position.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6
37P-F8199-E1 19/2/10 05:09 Página 60