2010 YAMAHA XMAX 250 engine

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
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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

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PERIODIC MAINTENANCE AND ADJUSTMENT
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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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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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EAU37833
Matte color cautionECA15192
Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
advice on what products to use
before cleaning the vehicle.
Using a brush, harsh chemical pro-
ducts or cleaning compounds
when cleaning these parts will
scratch or damage their surface.
Wax also should not be applied to
any matte colored finished parts.
EAU26093
Care
While the open design of a scooter
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go
unnoticed on a car, however, it
detracts from the overall appearance
of a scooter. Frequent and proper
care does not only comply with the
terms of the warranty, but it will also
keep your scooter looking good,
extend its life and optimize its perfor-
mance.
Before cleaning1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers as well as all electrical
couplers and connectors, inclu-
ding the spark plug cap, are
tightly installed.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a brush, but never apply such pro-
ducts onto seals, gaskets and
wheel axles. Always rinse the dirt
and degreaser off with water.
Cleaning
ECA10782
Avoid using strong acidic whe-
el cleaners, especially on spo-
ked wheels. If such products
are used on hard-to-remove
dirt, do not leave the cleaner on
the affected area any longer
than instructed. Also, tho-
roughly rinse the area off with
water, immediately dry it, and
then apply a corrosion protec-
tion spray.
Improper cleaning can damage
plastic parts (such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc.) and
the mufflers. Use only a soft,
clean cloth or sponge with
water to clean plastic. Howe-
ver, if the plastic parts cannot
be thoroughly cleaned with
water, diluted mild detergent

NOTICE

NOTICE

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with water may be used. Be
sure to rinse off any detergent
residue using plenty of water,
as it is harmful to plastic parts.
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.
Do not use high-pressure was-
hers or steam-jet cleaners sin-
ce they cause water seepage
and deterioration in the follo-
wing areas: seals (of wheel and
swingarm bearings, fork and
brakes), electric components
(couplers, connectors, instru-
ments, switches and lights),
breather hoses and vents.
For scooters equipped with a
windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or scrat-
ching. Some cleaning com-
pounds for plastic may leavescratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not lea-
ve any marks. If the windshield
is scratched, use a quality
plastic polishing compound
after washing.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottle-
brush for hard-to-reach areas. Stub-
born dirt and insects will come off
more easily if the area is covered with
a wet cloth for a few minutes before
cleaning.
After riding in the rain, near the sea or
on salt-sprayed roads
Since sea salt or salt sprayed on the
roads during winter are extremely
corrosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads.
TIP
Salt sprayed on roads in the winter
may remain well into spring.
1. Clean the scooter with cold water
and a mild detergent after the
engine has cooled down. NOTI-
CE: Do not use warm water
since it increases the corrosive
action of the salt.
[ECA10791]
2. Apply a corrosion protection spray on all metal, including
chrome- and nickel-plated, surfa-
ces to prevent corrosion.
After cleaning 1. Dry the scooter with a chamois or an absorbing cloth.
2. Use a chrome polish to shine chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally indu-
ced discoloring of stainless-steel
exhaust systems can be removed
through polishing.)
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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.
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Dimensions:Overall length:2201 mm (86.7 in)
Overall width: 776 mm (30.6 in)
Overall height: 1337 mm (52.6 in)
Seat height: 792 mm (31.2 in)
Wheelbase: 1545 mm (60.8 in)
Ground clearance: 134 mm (5.30 in)
Minimum turning radius: 1805 mm (71.1 in)
Weight:With oil and fuel:177.4 kg (391 lb)
Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Forward-inclined single cylinder
Displacement: 249 cm
3
Bore x stroke:69.0 x 66.8 mm (2.72 x 2.63 in)
Compression ratio: 10.00 :1
Starting system: Electric starter
Lubrication system: Wet sump
Engine oil:Type:SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade: API service SF, SG type or higher, JASO
standard MA
Engine oil quantity:Periodic oil change: 1.30 L (1.37 US qt, 1.14 Imp.qt)
Final transmission oil:Type:SAE 10W-30 type SE motor oil
Quantity: 0.25 L (0.26 US qt, 0.22 Imp.qt)
Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes): 1.00 L (1.06 US qt, 0.88 Imp.qt)
Air filter:Air filter element:Oil-coated paper element
Fuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity: 11.8 L (3.12 US gal, 2.60 Imp.gal)
Fuel reserve amount: 1.7 L (0.45 US gal, 0.37 Imp.gal)
Throttle body:ID mark:1C04 00
Manufacturer: AISAN
Spark plug (s):Manufacturer/model:NGK/DPR8EA-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)
Clutch:Clutch type:Dry, centrifugal automatic
Transmission:Primary reduction system:Helical gear
Primary reduction ratio: 40/15 (2.666)
Secondary reduction system: Helical gear
Secondary reduction ratio: 40/14 (2.857)
Transmission type: V-belt automatic

-20 -10 0 10 20 30
40 50 ˚C
SAE 10W-30
SAE 15W-40
SAE 20W-40
SAE 20W-50
SAE 10W-40
SAE 10W-50

SPECIFICATIONS
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