check engine YAMAHA XMAX 250 2010 Owner's Manual

TIP
The coolant should be between the
minimum and maximum level marks.
1. Maximum level mark
2. Minimum level mark
3. Coolant level check window
3. If the coolant is at or below theminimum level mark, lift up the
right floorboard mat as shown.
1. Floorboard mat
4. Open the reservoir cap, and thenadd coolant to the maximum
level mark. WARNING! Remove
only the coolant reservoir cap.
Never attempt to remove the
radiator cap when the engine is
hot.
[EWA15161]
NOTICE: If coolant is not avai-
lable, 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 coolant
as soon as possible, otherwise
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 anti-
freeze content of the coolant
as soon as possible, otherwise
the effectiveness of the coolant
will be reduced.
[ECA10472]
1. Coolant reservoir cap
5. Close the reservoir cap
6. Place the floorboard mat in the original position and push it
downward to secure it.
EAU33031
Changing the coolant
The coolant must be changed at the
intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer change the
coolant. WARNING! Never attempt
to remove the radiator cap when
the engine is hot.
[EWA10381]
Coolant reservoir capacity: 0.25 L (0.26 US qt, 0.22 Imp.qt)

FULL
LOW

PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6

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EAUS1334
Air filter and V-belt case air
filter elements
The air filter element should be repla-
ced and the V-belt case air filter ele-
ment should be cleaned at the inter-
vals specified in the periodic
maintenance and lubrication chart.
Service the air filter elements more
frequently if you are riding in unu-
sually wet or dusty areas.
Replacing the air filter element1. Place the scooter on the centers- tand.
1. Air filter case cover
2. Screw
3. Air filter element
2. Remove the air filter case coverby removing the screws.
3. 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 installing the screws.
Cleaning the V-belt case air filter
element 1. Remove the V-belt case air filter cover by removing the screws.
1. V-belt case air filter cover
2. Screw
2. Remove the air filter element, andthen blow out the dirt with com-
pressed air as shown.
1. V-belt case air filter cover
2. V-belt case air filter element
3. Check the air filter element fordamage 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.

1
2
2
ZAUM06623

PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6

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EAU21382
Checking 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 throttle grip. Periodically check
the throttle cable free play and, if
necessary, have a Yamaha dealer
adjust it.
EAU21401
Valve clearance
The valve clearance changes with
use, resulting in improper air-fuel mix-
ture and/or engine noise. To prevent
this from occurring, the valve clearan-
ce must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU21873
Tires
To maximize the performance, durabi-
lity, and safe operation of your vehi-
cle, note the following points regar-
ding the specified tires.
Tire air pressure
The tire air pressure should be chec-
ked and, if necessary, adjusted befo-
re each ride.
EWA10501
Operation of this vehicle with
improper tire pressure may cause
severe injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold

WARNING

ZAUM0053

PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6

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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. 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. 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.
Dry
WetOperate the electric starter.

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PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
6
Engine overheatingEWA10400
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, a\
nd 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.

WARNING

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3. Perform the following steps toprotect 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

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AAcceleration and deceleration ...................5-2
Air filter and V-belt case air filter elements ................................................6-15
Auxiliary light bulb, replacing ...................6-28
BBattery......................................................6-24
Brake fluid level, checking .......................6-20
Brake fluid, changing ...............................6-21
Brake lever, front ......................................3-12
Brake lever, rear .......................................3-12
Brake levers, lubricating ..........................6-21
Braking .......................................................5-3
CCare............................................................7-1
Catalytic converters .................................3-14
Centerstand and sidestand, checking and lubricating .......................................6-22
Coolant.....................................................6-13
Cowling and panel, removing and installing ...................................................6-8
DDimmer switch .........................................3-11
EEngine break-in ..........................................5-4
Engine oil .................................................6-10
Engine trouble warning light ......................3-4
FFinal transmission oil ...............................6-12
Front and rear brake lever free play.........6-18
Front and rear brake pads, checking ......6-19
Front fork, checking .................................6-23
Fuel ..........................................................3-13
Fuel consumption, tips for reducing ..........5-3 Fuel tank cap ...........................................3-12
Fuses, replacing .......................................6-25
HHandlebar switches .................................3-11
Hazard switch ..........................................3-11
Headlight bulb, replacing .........................6-26
High beam indicator light...........................3-4
Horn switch ..............................................3-11
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 ......................3-4
KKey identification number ..........................9-1
LLicense plate light bulb, replacing ...........6-28
MMain switch/steering lock ..........................3-2
Maintenance and lubrication, periodic ......6-4
Maintenance, emission control system .....6-3
Matte color, caution ...................................7-1
Model label ................................................9-2
Multi-function display ................................3-6
PParking .......................................................5-4
Part locations .............................................1-5
Pass switch ..............................................3-11
SSafe-riding points.......................................1-5
Safety information ......................................1-1
Seat ..........................................................3-15
Securing bracket ......................................3-15Shock absorber assemblies, adjusting....3-18
Sidestand .................................................3-18
Spark plug, checking .................................6-9
Specifications.............................................7-3
Speedometer .............................................3-5
Start switch ..............................................3-11
Starting off .................................................5-2
Starting the engine.....................................5-1
Steering, checking ...................................6-23
Storage.......................................................7-3
Storage compartments ............................3-16
TTachometer ................................................3-5
Tail/brake light bulb or rear turn signal
light bulb, replacing ...............................6-27
Throttle cable free play, checking ............6-16
Throttle grip and cable, checking and lubricating ..............................................6-21
Tires .........................................................6-16
Tool kit ........................................................6-2
Troubleshooting .......................................6-29
Troubleshooting charts ............................6-30
Turn signal indicator lights .........................3-4
Turn signal light bulb (front), replacing ................................................6-27
Turn signal switch ....................................3-11
VValve clearance ........................................6-16
Vehicle identification number .....................9-1
WWheel bearings, checking........................6-24
Wheels .....................................................6-18
INDEX

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