2009 YAMAHA XCITY 125 maintenance

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
6
EAU25881
Troubleshooting Although Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your scooter re-
quire any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the scooter prop-
erly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
WARNING
EWA15141
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from waterheaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or
property damage.
U16PE1E0.book Page 29 Monday, July 28, 2008 9:57 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-30
6
EAU42131
Troubleshooting charts Starting problems or poor engine performance
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.
U16PE1E0.book Page 30 Monday, July 28, 2008 9:57 AM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
6Engine 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.
TIPIf 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 TIP.)
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.
U16PE1E0.book Page 31 Monday, July 28, 2008 9:57 AM

INDEXAAcceleration and deceleration................. 5-2
Air filter and V-belt case air filter
elements ............................................. 6-13
Auxiliary light bulb, replacing ................ 6-28BBattery................................................... 6-23
Brake fluid, changing ............................ 6-19
Brake fluid level, checking .................... 6-18
Brake lever, front..................................... 3-9
Brake lever, rear ..................................... 3-9
Brake levers, lubricating........................ 6-20
Braking .................................................... 5-3CCables, checking and lubricating .......... 6-20
Care ........................................................ 7-1
Carrier ................................................... 3-16
Catalytic converters .............................. 3-12
Centerstand and sidestand,
checking and lubricating ..................... 6-21
Coolant.................................................. 6-12
Coolant temperature gauge .................... 3-5
Cowlings and panels,
removing and installing ......................... 6-6DDimmer switch ........................................ 3-9
Display, multi-function ............................. 3-5EEngine break-in ....................................... 5-4
Engine oil ................................................ 6-8
Engine trouble warning light.................... 3-3FFinal transmission oil ............................ 6-11
Front and rear brake lever free play...... 6-17Front and rear brake pads, checking .... 6-18
Front fork, checking .............................. 6-21
Fuel....................................................... 3-10
Fuel consumption, tips for reducing........ 5-3
Fuel gauge.............................................. 3-5
Fuel tank cap ........................................ 3-10
Fuses, replacing ................................... 6-24
HHandlebar switches ................................ 3-8
Headlight bulb, replacing ...................... 6-25
High beam indicator light ........................ 3-3
Horn switch ............................................. 3-9IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-17
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-3
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLicense plate light bulb, replacing ........ 6-28
Luggage hook ....................................... 3-16MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2PParking ................................................... 5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ..................................................... 6-2SSafe-riding points.................................... 1-5
Safety information................................... 1-1Seat ....................................................... 3-12
Shock absorber assemblies,
adjusting ............................................. 3-15
Sidestand .............................................. 3-16
Spark plug, checking ............................... 6-7
Specifications .......................................... 8-1
Speedometer........................................... 3-4
Starting off ............................................... 5-2
Starting the engine .................................. 5-1
Start switch.............................................. 3-9
Steering, checking................................. 6-22
Storage.................................................... 7-3
Storage compartments .......................... 3-13
TTail/brake light bulb or rear turn signal
light bulb, replacing ............................. 6-27
Throttle cable free play, checking ......... 6-14
Throttle grip and cable,
checking and lubricating ..................... 6-20
Tires ...................................................... 6-15
Tool kit..................................................... 6-1
Troubleshooting .................................... 6-29
Troubleshooting charts.......................... 6-30
Turn signal indicator lights ...................... 3-3
Turn signal light bulb (front),
replacing ............................................. 6-27
Turn signal switch ................................... 3-9VValve clearance..................................... 6-15
Vehicle identification number .................. 9-1WWheel bearings, checking ..................... 6-22
Wheels .................................................. 6-17
Windshield............................................. 3-14
U16PE1E0.book Page 1 Monday, July 28, 2008 9:57 AM