2008 YAMAHA XCITY 125 check engine

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
Further safe-riding points ................1-4
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
Controls and instruments.................2-3
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Immobilizer system .........................3-1
Main switch/steering lock ................3-2
Indicator and warning lights ............3-3
Speedometer ..................................3-4
Fuel gauge ......................................3-4
Coolant temperature gauge ............3-5
Multi-function display ......................3-5
Handlebar switches ........................3-8
Front brake lever ............................3-9
Rear brake lever .............................3-9
Fuel tank cap ................................3-10
Fuel ...............................................3-10
Catalytic converter ........................3-11
Seat ..............................................3-11
Storage compartment ...................3-12
Storage compartment ...................3-13
Adjusting the shock absorber
assemblies ................................3-13
Luggage hook ...............................3-14
Sidestand ......................................3-14
Ignition circuit cut-off system ........3-15PRE-OPERATION CHECKS............. 4-1
Pre-operation check list .................. 4-2
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-2
Braking ........................................... 5-3
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-4
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
MINOR REPAIR................................. 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance and
lubrication chart .......................... 6-2
Removing and installing cowlings
and panels .................................. 6-5
Checking the spark plug ................. 6-6
Engine oil ....................................... 6-7
Final transmission oil .................... 6-10
Coolant ......................................... 6-11
Air filter and V-belt case air filter
elements ................................... 6-12
Checking the throttle cable free
play ........................................... 6-13
Valve clearance ............................ 6-14
Tires ............................................. 6-14Cast wheels ................................. 6-16
Front and rear brake lever free
play ........................................... 6-16
Checking the front and rear brake
pads .......................................... 6-17
Checking the brake fluid level ...... 6-17
Changing the brake fluid .............. 6-18
Checking and lubricating the
cables ....................................... 6-19
Checking and lubricating the
throttle grip and cable ............... 6-19
Lubricating the front and rear
brake levers .............................. 6-19
Checking and lubricating the
centerstand and sidestand ....... 6-20
Checking the front fork ................. 6-20
Checking the steering .................. 6-21
Checking the wheel bearings ....... 6-22
Battery ......................................... 6-22
Replacing the fuses ..................... 6-23
Replacing a headlight bulb .......... 6-24
Replacing a front turn signal light
bulb ........................................... 6-26
Replacing a tail/brake light bulb or
a rear turn signal light bulb ....... 6-27
Replacing the license plate light
bulb ........................................... 6-28
Replacing an auxiliary light
bulb ........................................... 6-28
Troubleshooting ........................... 6-28
Troubleshooting charts ................ 6-29U16PE0E0.book Page 1 Tuesday, May 8, 2007 10:26 AM

SAFETY INFORMATION
1-3
1When 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. Make sure
to distribute the weight as evenly
as possible on both sides of the
scooter to minimize imbalance or
instability.


Shifting weights can create a sud-
den imbalance. Make sure that ac-
cessories and cargo are securely
attached to the scooter before
riding. Check accessory mounts
and cargo restraints frequently.


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.
Accessories
Genuine Yamaha accessories have
been specifically designed for use on
this scooter. Since Yamaha cannot test
all other accessories that may be avail-
able, you must personally be responsi-
ble for the proper selection, installationand use of non-Yamaha accessories.
Use extreme caution when selecting
and installing any accessories.
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 liftthe 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.
Gasoline and exhaust gas


GASOLINE IS HIGHLY FLAMMA-
BLE:
Always turn the engine off when
refueling.
U16PE0E0.book Page 3 Tuesday, May 8, 2007 10:26 AM

SAFETY INFORMATION
1-4
1 Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.
Never refuel while smoking or in
the vicinity of an open flame.


Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
scooter in an area that has ade-
quate ventilation.


Always turn the engine off before
leaving the scooter unattended
and remove the key from the main
switch. When parking the scooter,
note the following:
The engine and exhaust system
may be hot, therefore, park the
scooter in a place where pedes-
trians or children are not likely to
touch these hot areas.
Do not park the scooter on a
slope or soft ground, otherwise it
may fall over.Do not park the scooter near a
flammable source (e.g., a kero-
sene heater, or near an open
flame), otherwise it could catch
fire.


If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediately.
If any gasoline spills on your skin
or clothing, immediately wash the
affected area with soap and water
and change your clothes.
EAU10371
Further safe-riding points

Be sure to signal clearly when
making turns.


Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.


Slow down as you approach a cor-
ner or turn. Once you have com-
pleted a turn, accelerate slowly.


Be careful when passing parked
cars. A driver might not see you
and open a door in your path.


Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers be-
come extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter up-
right, otherwise it could slide out
from under you.


The brake pads could get wet
when you wash the scooter. After
washing the scooter, check the
brakes before riding.
U16PE0E0.book Page 4 Tuesday, May 8, 2007 10:26 AM

DESCRIPTION
2-1
2
EAU10410
Left view
1
2 3 4 5 87 9
6
1. Rear storage compartment (page 3-13)
2. Shock absorber assembly spring preload adjusting ring (page 3-13)
3. Final transmission oil filler cap (page 6-10)
4. Air filter element (page 6-12)
5. V-belt case air filter element (page 6-12)
6. Engine oil filter element (page 6-7)
7. Sidestand (page 3-14, 6-20)
8. Coolant level check window (page 6-11)9. Front brake pads (page 6-17)
U16PE0E0.book Page 1 Tuesday, May 8, 2007 10:26 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-3
32. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.
To unlock the steering
Push the key in, and then turn it to
“OFF” while still pushing it.
WARNING
EWA10060
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving,
otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident. Make
sure that the vehicle is stopped be-
fore turning the key to “OFF” or“LOCK”.
EAU11003
Indicator and warning lights
EAU11030
Turn signal indicator lights “” and
“”
The corresponding indicator light flash-
es when the turn signal switch is
pushed to the left or right.
EAU11080
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11480
Engine trouble warning light “”
This warning light comes on when an
electrical circuit monitoring the engine
is defective. When this occurs, have a
Yamaha dealer check the self-diagno-
sis system.
The electrical circuit of the warning light
can be checked by turning the key to
“ON”. If the warning light does not come
on for a few seconds, then go off, have
a Yamaha dealer check the electrical
circuit.
EAU38620
Immobilizer system indicator light
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”.
If the indicator light does not come on
for a few seconds, then go off, have a
Yamaha dealer check the electrical cir-
cuit.
When the key is turned to “OFF” and 30
seconds have passed, the indicator
light will start flashing indicating the im-
mobilizer system is enabled. After 24
hours have passed, the indicator light
will stop flashing, however the immobi-
lizer system is still enabled.
1. High beam indicator light “”
2. Left turn signal indicator light “”
3. Immobilizer system indicator light
4. Right turn signal indicator light “”
5. Engine trouble warning light “”
12 3 4 5
ZAUM0697
U16PE0E0.book Page 3 Tuesday, May 8, 2007 10:26 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-15
3(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly as described
below and have a Yamaha dealer re-
pair it if it does not function proper-
ly.
EAU15372
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch and brake
light switches) has the following func-
tions.

It prevents starting when the side-
stand is up, but neither brake is ap-
plied.


It prevents starting when either
brake is applied, but the sidestand
is still down.


It cuts the running engine when the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.WARNING
EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system be-fore riding.
U16PE0E0.book Page 15 Tuesday, May 8, 2007 10:26 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-16
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Keep the front or rear brake applied.
5. Push the start switch.
Does the engine start?
With the engine still off:
6. Move the sidestand up.
7. Keep the front or rear brake applied.
8. Push the start switch.
Does the engine start?
With the engine still running:
9. Move the sidestand down.
Does the engine stall?
The system is OK. The scooter can be ridden.
This check is most reliable if performed with
a warmed-up engine.The sidestand switch may be defective.
The scooter should not be ridden until
checked by a Yamaha dealer.
The brake switch may be defective.
The scooter should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may be defective.
The scooter should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO NO YESNOTE:
U16PE0E0.book Page 16 Tuesday, May 8, 2007 10:26 AM

PRE-OPERATION CHECKS
4-2
4
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-10
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-7
Final transmission oilCheck vehicle for oil leakage. 6-10
CoolantCheck coolant level in reservoir.
If necessary, add recommended coolant to specified level.
Check cooling system for leakage.6-11
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-16, 6-17, 6-17
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-16, 6-17, 6-17
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-13, 6-19
U16PE0E0.book Page 2 Tuesday, May 8, 2007 10:26 AM