2008 YAMAHA XCITY 250 check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6
CAUTION:
ECA10471


If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.


If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion.


If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness ofthe coolant will be reduced.WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.
5. Close the reservoir cap, and then
install the cowling.
EAU33030
Changing the coolant
WARNING
EWA10380
Never attempt to remove the radiatorcap when the engine is hot.
The coolant must be changed at the in-
tervals specified in the periodic mainte-
nance and lubrication chart. Have a
Yamaha dealer change the coolant.
EAUS1333
Air filter and V-belt case air fil-
ter elements The air filter element should be re-
placed and the V-belt case air filter ele-
ment should be cleaned at the intervals
specified in the periodic maintenance
and lubrication chart. Service the air fil-
ter elements more frequently if you are
riding in unusually wet or dusty areas.
Replacing the air filter element
1. Place the scooter on the center-
stand.
2. Remove the air filter case cover by
removing the screws.
Coolant reservoir capacity:
0.20 L (0.21 US qt) (0.18 Imp.qt)
1. Air filter case cover
2. Screw
3. Air filter element1
2 2ZAUM0662
3

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
63. Pull the air filter element out.
4. Insert a new air filter element into
the air filter case.
5. Install the air filter case cover by in-
stalling the screws.
Cleaning the V-belt case air filter el-
ement
1. Remove the V-belt case air filter
cover by removing the screws.
2. Remove the air filter element, and
then blow out the dirt with com-
pressed air as shown.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.
5. Install the V-belt case air filter cov-
er by installing the screws.
CAUTION:
ECA10530


Make sure that each filter ele-
ment is properly seated in its
case.


The engine should never be op-
erated without the filter ele-
ments installed, otherwise the
piston(s) and/or cylinder(s) maybecome excessively worn.
EAU21382
Checking the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
1. V-belt case air filter cover
2. Screw
1. V-belt case air filter cover
2. V-belt case air filter element
1. Throttle cable free play1ZAUM0051

PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
EAU21401
Valve clearance The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAUM2040
Tires To maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10500


The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).


The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approvedfor this model.WARNING
EWA11200
Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your vehicle, you should keep
the following precautions in mind.
ZAUM0053
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Fr o nt :
170 kPa (25 psi) (1.70 kgf/cm²)
Rear:
190 kPa (28 psi) (1.90 kgf/cm²)
90–185 kg (198–408 lb):
Fr o nt :
180 kPa (26 psi) (1.80 kgf/cm²)
Rear:
200 kPa (29 psi) (2.00 kgf/cm²)
Maximum load*:
185 kg (408 lb)
* Total weight of rider, passenger, car-
go and accessories

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6
EAU23100
Checking and lubricating the
cables The 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 lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING
EWA10720
Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafeconditions.
EAU23111
Checking and lubricating the
throttle grip and cable The operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated at
the intervals specified in the periodic
maintenance chart.
EAU23171
Lubricating the front and rear
brake levers The pivoting points of the front and rear
brake levers must be lubricated at the
intervals specified in the periodic main-
tenance and lubrication chart.
Recommended lubricant:
Engine oil
Recommended lubricant:
Lithium-soap-based grease (all-pur-
pose grease)ZAUM0061

PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
CAUTION:
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
EAU23280
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 a stand under the engine to
raise the front wheel off the
ground.
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
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.
ZAUM0669
ZAUM0670

PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6
EAU42130
Troubleshooting charts Starting problems or poor engine performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6 Engine overheating
WARNING
EWA10400


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.


After removing the radiator cap retaining bolt, 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 hissingsound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
NOTE:If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolantas 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 NOTE.)
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.

INDEX
AAcceleration and deceleration ................ 5-2
Air filter and V-belt case air filter
elements ............................................. 6-11
Auxiliary light bulb, replacing ................ 6-27BBattery .................................................. 6-21
Brake fluid, changing ............................ 6-17
Brake fluid level, checking .................... 6-16
Brake lever, front .................................... 3-7
Brake lever, rear ..................................... 3-8
Brake levers, lubricating ....................... 6-18
Braking ................................................... 5-2CCables, checking and lubricating .......... 6-18
Care ........................................................ 7-1
Catalytic converter .................................. 3-9
Centerstand and sidestand,
checking and lubricating ..................... 6-19
Coolant ................................................. 6-10
Coolant temperature gauge .................... 3-3
Cowlings and panels,
removing and installing......................... 6-5DDimmer switch ........................................ 3-7
Display, multi-function ............................ 3-3EEngine break-in ...................................... 5-3
Engine oil ................................................ 6-7
Engine trouble warning light ................... 3-2FFinal transmission oil .............................. 6-9
Front and rear brake lever free play ..... 6-15
Front and rear brake pads, checking .... 6-16Front fork, checking...............................6-19
Fuel ......................................................... 3-8
Fuel consumption, tips for reducing ........ 5-3
Fuel gauge .............................................. 3-3
Fuel tank cap........................................... 3-8
Fuses, replacing .................................... 6-22
HHandlebar switches ................................. 3-6
Headlight bulb, replacing....................... 6-23
High beam indicator light......................... 3-2
Horn switch ............................................. 3-7IIdentification numbers ............................. 9-1
Ignition circuit cut-off system ................. 3-13
Indicator and warning lights .................... 3-2KKey identification number ........................ 9-1LLicense plate light bulb, replacing ......... 6-27
Luggage hook ....................................... 3-12MMain switch/steering lock ........................ 3-1
Model label .............................................. 9-2PParking ....................................................5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ......................................................6-2
Pre-operation check list........................... 4-2SSafe-riding points .................................... 1-4
Safety information ...................................1-1
Seat ....................................................... 3-10Shock absorber assemblies,
adjusting ............................................. 3-12
Sidestand .............................................. 3-13
Spark plug, checking .............................. 6-6
Specifications.......................................... 8-1
Speedometer .......................................... 3-2
Starting off .............................................. 5-2
Starting the engine.................................. 5-1
Start switch ............................................. 3-7
Steering, checking ................................ 6-20
Storage ................................................... 7-3
Storage compartment .................. 3-10, 3-11
TTail/brake light bulb or rear turn signal
light bulb, replacing............................. 6-26
Throttle cable free play, checking ......... 6-12
Throttle grip and cable,
checking and lubricating ..................... 6-18
Tires ...................................................... 6-13
Tool kit .................................................... 6-1
Troubleshooting .................................... 6-27
Troubleshooting charts ......................... 6-28
Turn signal indicator lights ...................... 3-2
Turn signal light bulb (front),
replacing ............................................. 6-25
Turn signal switch ................................... 3-7VValve clearance .................................... 6-13
Vehicle identification number .................. 9-1WWheel bearings, checking..................... 6-21
Wheels .................................................. 6-15