2009 YAMAHA YFM250R battery

Parking on a slope .................................... 6-6
Accessories and loading ........................... 6-6
RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV.............. 7-2
RIDE WITH CARE AND GOOD
JUDGEMENT ........................................... 7-2
BE CAREFUL WHERE YOU RIDE ............ 7-8
TURNING YOUR ATV ............................. 7-12
CLIMBING UPHILL .................................. 7-14
RIDING DOWNHILL................................. 7-16
CROSSING A SLOPE.............................. 7-17
CROSSING THROUGH SHALLOW
WATER .................................................. 7-18
RIDING OVER ROUGH TERRAIN .......... 7-20
SLIDING AND SKIDDING ........................ 7-20
WHAT TO DO IF... ................................... 7-21
WHAT TO DO... ....................................... 7-21
PERIODIC MAINTENANCE AND MINOR
REPAIR .......................................................... 8-1
Owner’s manual and tool kit ...................... 8-1
Periodic maintenance chart for the
emission control system .......................... 8-3
General maintenance and lubrication
chart ........................................................ 8-5
Checking the spark plug ............................ 8-9
Engine oil and oil filter element ............... 8-10
Cleaning the air filter element ................. 8-14Cleaning the spark arrester ..................... 8-18
Adjusting the carburetor ........................... 8-19
Adjusting the engine idling speed ............ 8-20
Adjusting the throttle cable free play ........ 8-20
Valve clearance ....................................... 8-21
Checking the front and rear brake
pads ....................................................... 8-22
Checking the brake fluid level .................. 8-23
Changing the brake fluid .......................... 8-25
Checking the front brake lever free
play ........................................................ 8-26
Checking the brake pedal position ........... 8-26
Adjusting the parking brake free play ...... 8-27
Brake light switches ................................. 8-29
Adjusting the clutch lever free play .......... 8-29
Drive chain slack ...................................... 8-30
Lubricating the drive chain ....................... 8-32
Checking and lubricating the cables ........ 8-33
Checking and lubricating the brake and
clutch levers ........................................... 8-33
Checking the shift pedal .......................... 8-34
Checking and lubricating the brake
pedal ...................................................... 8-34
Checking the wheel hub bearings ............ 8-34
Lubricating the swingarm pivots .............. 8-35
Lubricating the upper and lower arm
pivots ..................................................... 8-35
Lubricating the steering shaft ................... 8-36
Battery ..................................................... 8-36

4-2
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2
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EBU18061
Handlebar switches
EBU18080
Engine stop switch “/”
Set this switch to “” before starting the engine.
The engine stop switch controls the ignition and
stops the engine when it is running. Use this switch
to stop the engine in an emergency situation. The
engine will not start or run when this switch is set
to “”.
EBU18100
Start switch “”
Push this switch to crank the engine with the start-
er.NOTICE

ECB00050
See the starting instructions on page 6-1 prior
to starting the engine.
EBU18151
Light switch “/ /OFF”
Set this switch to “” to turn on the low beams
and the taillight. Set the switch to “” to turn on
the high beams and the taillight. Set the switch to
“OFF” to turn off all the lights.
NOTICE

ECB00040
Do not use the headlights with the engine
turned off for an extended period of time, oth-
erwise the battery may discharge to the point
that the starter motor will not operate properly.
If this should happen, remove the battery and
recharge it.
EBU18280
Throttle lever
Once the engine is running, movement of the throt-
1. Light switch “OFF/ /”
2. Engine stop switch “/”
3. Start switch “”
1
2
3

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56
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8
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11

Position (1):

Cold engine start with ambient temperature be-
low 5 °C (40 °F).
Position (2):

Cold engine start with ambient temperature be-
tween 0 °C (30 °F) and 30 °C (90 °F).
Position (3):

Cold engine start with ambient temperature
above 25 °C (80 °F).
Ambient temp./starter (choke) position
6. Completely close the throttle lever and start
the engine by pushing the start switch.
TIP

If the engine fails to start, release the start switch,
then push it again. Pause a few seconds before
the next attempt. Each cranking should be as short
as possible to preserve battery energy. Do not
crank the engine more than 10 seconds on each
1. Fully open
2. Half open
3. Closed
4. Starter (choke)1
23
123
4

8-36
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Right side

EBU25102
Lubricating the steering shaft
The steering shaft must be lubricated at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
EBU25223
Battery
This model is equipped with a VRLA (Valve Regu-lated Lead Acid) battery. There is no need to check
the electrolyte or to add distilled water. However,
the battery lead connections need to be checked
and, if necessary, tightened.NOTICE

ECB00620
Never attempt to remove the battery cell seals,
as this would permanently damage the battery.WARNING

EWB02160
Battery electrolyte is poisonous and danger-
ous, as it contains sulfuric acid, which can
cause severe burns. Avoid contact with skin,
eyes or clothing. Always shield your eyes
when working near batteries.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of ig-
nition away. Ventilate when charging or using
in an enclosed space.
1. Upper grease nipple
2. Lower grease nipple
Recommended lubricant:
Lithium-soap-based grease
1
2

8-37
1
2
3
4
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6
78
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11

KEEP OUT OF REACH OF CHILDREN.
To remove the battery
1. Remove the seat. (See page 4-10.)
2. Unhook the band securing the owner’s tool kit,
and then remove the battery holding plate by
removing the bolts.
3. Disconnect the negative battery lead first,
then the positive battery lead by removing
their bolt.
4. Pull the battery out of its compartment.
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 ATV is equipped with optional electri-
cal accessories.
To store the battery


If the ATV will not be used for more than one
month, remove the battery, fully charge it, and
then place it in a cool, dry place.

If the battery will be stored for more than two
months, check it at least once a month and fully
charge it if necessary.
To install the battery
TIP

Be sure the battery is fully charged.
1. Place the battery in its compartment.
2. Connect the positive battery lead first, then
connect the negative battery lead by installing
their bolt.
3. Install the battery holding plate by installing
the bolts, and then hook the band to secure
the owner’s tool kit.
4. Install the seat. (See page 4-10.)
1. Low-pressure tire gauge
2. Owner’s tool kit
3. Bolt
3
2
1

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6
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NOTICE

ECB00631

Always keep the battery charged. Storing a
discharged battery can cause permanent
battery damage.

To charge a VRLA (Valve Regulated Lead Ac-
id) battery, a special constant-voltage bat-
tery charger is required. Using a
conventional battery charger will damage
the battery. If you do not have access to a
constant-voltage battery charger, have a
Yamaha dealer charge your battery.
EBU28924
Replacing the fuse
The fuse holder is located beside the battery and
can be accessed as follows:
1. Remove the seat. (See page 4-10.)
2. Unhook the band securing the owner’s tool kit,
and then remove the battery holding plate by
removing the bolts.
1. Negative battery lead (black)
2. Positive battery lead (red)
12

1. Battery band
2. Bolt
3. Battery holding plate
2 3
1

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If the fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off all electrical
circuits.
NOTICE

ECB00640
To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse.
2. Remove the blown fuse, and then install a
new fuse of the specified amperage.
WARNING
EWB02171
Always use a fuse of the specified rating, and
never use a substitute object in place of the
proper fuse. An improper fuse or a substitute
object can cause damage to the electrical sys-
tem, which could lead to a fire.
3. Turn the key to “ON” and turn on the electrical
circuits to check if the devices operate.
4. If the fuse immediately blows again, have a
Yamaha dealer check the electrical system.
5. Install the battery cover by installing the bat-
tery cover bracket bolts.
6. Place the owner’s tool kit onto the battery cov-
er, and then hook the band.
7. Install the seat.
EBU25440
Replacing a headlight bulb
If a headlight bulb burns out, replace it as follows.
1. Remove the headlight unit by removing the
bolts.
1. Main fuse
2. Spare fuse
1 2

Specified fuse:
15.0 A

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EBU25751
Troubleshooting chart
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 ATV.
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 ATV.
The engine does not start.
Have a Yamaha dealer
check the ATV.
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
Open the throttle halfway and operate
the electric starter.