check engine YAMAHA XMAX 125 2009 Owner's Manual

when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
●Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
●As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
EAU22721
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenan-
ce and lubrication chart. In addition,
have the oil seals of the brake master
cylinder and caliper as well as the
brake hose replaced at the intervals
listed below or whenever they are
damaged or leaking.
●Oil seals: Replace every two
years.
●Brake hose: Replace every four
years.
EAU23101
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 cables and cable ends should
be lubricated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or repla-
ce it. WARNING! Damage to the
outer sheath may interfere with
proper cable operation and will
cause the inner cable to rust.
Replace a damaged cable as soon
as possible to prevent unsafe con-
ditions.
[EWA10721]
Recommended lubricant:
Engine oil
PERIODIC MAINTENANCE AND ADJUSTMENT
6-21
6
1B9-F8199-E3.QXD 21/10/08 13:43 Página 63

EAU42131
Troubleshooting charts
Starting problems or poor engine performance
Check the fuel level in
the fuel tank.
1. FuelThere 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. CompressionThere 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. IgnitionWipe 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. BatteryThe engine turns over
quickly.
The engine turns over
slowly.The battery is good.
Check the battery lead connections,
and charge the battery if necessary.
Dry
We tOperate the electric starter.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6
1B9-F8199-E3.QXD 21/10/08 13:43 Página 75

Engine overheatingEWA10400
s s
WARNING
●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 his-
sing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as 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.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-34
6
1B9-F8199-E3.QXD 21/10/08 13:43 Página 76

3. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap
onto the spark plug, and then
place the spark plug on the
cylinder head so that the
electrodes are grounded.
(This will limit sparking during
the next step.)
d. Turn the engine over several
times with the starter. (This
will coat the cylinder wall with
oil.)
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING!
To prevent damage or injury
from sparking, make sure
to ground the spark plug
electrodes while turning the
engine over.
[EWA10951]
4. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alter-
natively, turn the wheels a little
every month in order to prevent
the tires from becoming degra-
ded in one spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a
month. Do not store the battery in
an excessively cold or warm pla-
ce [less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more
information on storing the bat-
tery, see page 6-24.
TIP
Make any necessary repairs before
storing the scooter.
SCOOTER CARE AND STORAGE
7-4
7
1B9-F8199-E3.QXD 21/10/08 13:43 Página 80

AAcceleration and deceleration ...................5-3
Air filter and V-belt case air filter
elements ................................................6-14
Anti-theft alarm (optional) ..........................3-9
Auxiliary light bulb, replacing ...................6-31
BBattery......................................................6-24
Brake fluid level, checking .......................6-20
Brake fluid, changing ...............................6-21
Brake lever, front ......................................3-10
Brake lever, rear .......................................3-10
Brake levers, lubricating ..........................6-22
Braking .......................................................5-3
CCables, checking and lubricating ............6-21
Care............................................................7-1
Catalytic converters .................................3-13
Centerstand and sidestand, checking
and lubricating .......................................6-22
Coolant.....................................................6-13
Coolant temperature gauge .......................3-5
Cowlings and panel, removing and
installing ...................................................6-6
DDimmer switch ...........................................3-9
Display, multi-function ...............................3-6
EEngine break-in ..........................................5-4
Engine oil ...................................................6-9
Engine trouble warning light ......................3-4
FFinal transmission oil ...............................6-12
Front and rear brake lever free play.........6-19Front and rear brake pads, checking ......6-19
Front fork, checking .................................6-23
Front storage compartment .....................3-16
Fuel ..........................................................3-12
Fuel consumption, tips for reducing ..........5-4
Fuel gauge .................................................3-5
Fuel level warning light ..............................3-4
Fuel tank cap ...........................................3-11
Fuses, replacing .......................................6-26
HHandlebar switches ...................................3-9
Hazard switch ..........................................3-10
Headlight bulb, replacing .........................6-28
High beam indicator light...........................3-3
Horn switch ................................................3-9
IIdentification numbers ...............................9-1
Ignition circuit cut-off system ..................3-19
Immobilizer system ....................................3-1
Immobilizer system indicator light .............3-4
Indicator and warning lights ......................3-3
KKey identification number ..........................9-1
LLicense plate light bulb, replacing ...........6-31
MMain switch/steering lock ..........................3-2
Maintenance and lubrication, periodic ......6-3
Maintenance, emission control system .....6-2
Matte color, caution ...................................7-1
Model label ................................................9-2
PParking .......................................................5-5
Part locations .............................................2-1Periodic maintenance and lubrication
chart .........................................................6-2
RRear storage compartment ......................3-17
SSafe-riding points.......................................1-5
Safety information ......................................1-1
Seat ..........................................................3-14
Securing bracket ......................................3-14
Shock absorber assemblies, adjusting....3-18
Sidestand .................................................3-18
Spark plug, checking .................................6-8
Specifications.............................................8-1
Speedometer .............................................3-5
Start switch ................................................3-9
Starting off .................................................5-2
Starting the engine.....................................5-1
Steering, checking ...................................6-24
Storage.......................................................7-3
Storage compartments ............................3-15
TTail/brake light bulb or rear turn signal
light bulb, replacing ...............................6-29
Throttle cable free play, adjusting ............6-15
Throttle grip and cable, checking and
lubricating ..............................................6-22
Tires .........................................................6-16
Tool kit ........................................................6-1
Troubleshooting .......................................6-32
Troubleshooting charts ............................6-33
Turn signal indicator lights .........................3-3
Turn signal light bulb (front), replacing ....6-29
Turn signal switch ......................................3-9
INDEX
1B9-F8199-E3.QXD 21/10/08 13:43 Página 86