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EAU23290
Checking the wheel bearings
The front and rear wheel bearings
must be checked at the intervals spe-
cified in the periodic maintenance and
lubrication chart. If there is play in the
wheel hub or if the wheel does not
turn smoothly, have a Yamaha dealer
check the wheel bearings.
EAU34224
Battery
1. Battery
The battery is located behind cowling
A. (See page 6-8).
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the elec-
trolyte or to add distilled water. Howe-
ver, the battery lead connections
need to be checked and, if necessary,
tightened.
EWA10760
Electrolyte is poisonous and
dangerous since it contains
sulfuric acid, which causes
severe burns. Avoid any con-tact with skin, eyes or clothing
and always shield your eyes
when working near batteries.
In case of contact, administer
the following FIRST AID.
• EXTERNAL: Flush with plenty of water.
• INTERNAL: Drink large quan- tities of water or milk and
immediately call a physician.
• EYES: Flush with water for 15 minutes and seek prompt
medical attention.
Batteries produce explosive
hydrogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed spa-
ce.
KEEP THIS AND ALL BATTE-
RIES OUT OF THE REACH OF
CHILDREN.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
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To charge the battery
Have a Yamaha dealer charge the
battery as soon as possible if it seems
to have discharged. Keep in mind that
the battery tends to discharge more
quickly if the vehicle is equipped with
optional electrical accessories.
ECA16520
To charge a VRLA (Valve Regulated
Lead Acid) battery, a special (cons-
tant-voltage) battery charger is
required. Using a conventional bat-
tery charger will damage the bat-
tery. If you do not have access to a
constant-voltage battery charger,
have a Yamaha dealer charge your
battery.
To store the battery1. If the vehicle will not be used for more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place. NOTI-
CE: When removing the battery,
be sure the key is turned to
“OFF”, then disconnect the
negative lead before discon-
necting the positive lead.
[ECA16302]
2. If the battery will be stored for more than two months, check it
at least once a month and fully
charge it if necessary.
3. Fully charge the battery before installation.
4. After installation, make sure that the battery leads are properly
connected to the battery termi-
nals.
ECA16530
Always keep the battery charged.
Storing a discharged battery can
cause permanent battery damage.
EAUS1771
Replacing the fuses
1. Fuse box
2. Hazard fuse
The fuse box, which contains the
fuses for the individual circuits, is
located behind cowling A. (See page
6-8).
TIP
The main fuse, which is in a different
and hard-to-reach location, must be
replaced by a Yamaha dealer.
If a fuse for the individual circuits is
blown, replace it as follows.1. Turn the key to “OFF” and turn off the electrical circuit in question.
2. Remove the blown fuse, and then install a new fuse of the specified
NOTICE
NOTICE
PERIODIC MAINTENANCE AND ADJUSTMENT
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![YAMAHA XMAX 250 2010 Owners Manual
amperage. WARNING! Do not
use a fuse of a higher ampera-
ge rating than recommended
to avoid causing extensive
damage to the electrical sys-
tem and possibly a fire.
[EWA15131]
TIP
Fuse tongs and a YAMAHA XMAX 250 2010 Owners Manual
amperage. WARNING! Do not
use a fuse of a higher ampera-
ge rating than recommended
to avoid causing extensive
damage to the electrical sys-
tem and possibly a fire.
[EWA15131]
TIP
Fuse tongs and a](/manual-img/51/52911/w960_52911-66.png)
amperage. WARNING! Do not
use a fuse of a higher ampera-
ge rating than recommended
to avoid causing extensive
damage to the electrical sys-
tem and possibly a fire.
[EWA15131]
TIP
Fuse tongs and a bag containing spa-
re fuses are included in the owner’s
tool kit. Use the tongs to remove and
install a fuse.
1. Radiator fan fuse
2. ECU fuse
3. Backup fuse
4. Signaling system fuse
5. Headlight fuse
6. Ignition fuse
7. Spare fuse
8. Spare fuse
9. Spare fuse
3. Turn the key to “ON” and turn on the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
EAU34240
Replacing a headlight bulb
This model is equipped with quartz
bulb headlights. If a headlight bulb
burns out, have a Yamaha dealer
replace it and, if necessary, adjust the
headlight beam.
Specified fuses:Main fuse:30.0 A
Headlight fuse: 15.0 A
Signaling system fuse: 10.0 A
Ignition fuse: 10.0 A
Radiator fan fuse: 7.5 A
Hazard fuse: 10.0 A
ECU fuse: 5.0 A
Backup fuse: 5.0 A
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EAU43051
Replacing a front turn signal
light bulb
1. Place the scooter on the centers-tand.
2. Remove the socket (together with the bulb) by turning it coun-
terclockwise.
1. Turn signal light bulb
2. Turn signal light bulb socket
3. Remove the burnt-out bulb bypulling it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with the bulb) by turning it clockwise.
EAUS1781
Replacing a tail/brake light
bulb or a rear turn signal
light bulb
1. Place the vehicle on the centers-tand.
2. Remove panel A. (See page 6-8).
3. Remove the tail/brake light unit by removing the screws.
1. Screw
4. Remove the tail/brake light andturn signal light bulb holder
together with the dust protector
by pressing the tabs, and then
pulling both outward.
1. Dust protector
2. Tabs
1. Turn signal light bulb
2. Tail/brake light bulb
5. Remove the burnt-out bulb bypushing it in and turning it coun-
terclockwise.
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6. Insert a new bulb into the socket,push it in, and then turn it clock-
wise until it stops.
7. Install the bulb holder together with the dust protector by pus-
hing both into the original posi-
tion.
TIP
Place the bulb holder and dust cover
correctly in its position to avoid dust
and water entering.
8. Install the screws and thetail/brake light unit.
9. Install the panel.
EAU47910
Replacing the license plate
light bulb
1. Remove the license plate light cover by removing the screw.
1. Screw
2. License plate light bulb socket
2. Remove the burnt-out bulb bypulling it out from the socket.
3. Insert a new bulb into the socket.
4. Install the license plate light cover by installing the screw.
EAU43231
Replacing an auxiliary light
bulb
This model is equipped with two auxi-
liary lights. If an auxiliary light bulb
burns out, replace it as follows.1. Remove the socket (together with the bulb) by pulling it out.
1. Auxiliary light bulb socket
2. Remove the burnt out bulb bypulling it out.
3. Insert a new bulb into the socket.
4. Install the socket (together with the bulb) by pushing it in.
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EAU25881
Troubleshooting
Although Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition sys-
tems, 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
require any repair, take it to a Yamaha
dealer, whose skilled technicians
have the necessary tools, experience,
and know-how to service the scooter
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
EWA15141
When checking the fuel system, do
not smoke, and make sure there
are no open flames or sparks in thearea, including pilot lights from
water heaters or furnaces. Gasoli-
ne or gasoline vapors can ignite or
explode, causing severe injury or
property damage.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
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PERIODIC MAINTENANCE AND ADJUSTMENT
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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
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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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