battery YAMAHA YFM250R 2012 Owners Manual

Lubricating the upper and lower arm pivots ...................................................... 8-34
Lubricating the steering shaft ................... 8-35
Battery ...................................................... 8-35
Replacing the fuse ................................... 8-38
Replacing a headlight bulb ....................... 8-39
Adjusting a headlight beam ...................... 8-41
Replacing the tail/brake light bulb ............ 8-41
Removing a wheel .................................... 8-41
Installing a wheel ...................................... 8-42
Troubleshooting ....................................... 8-43
Troubleshooting chart .............................. 8-44
CLEANING AND STORAGE .......................... 9-1 Cleaning ..................................................... 9-1
Storage ....................................................... 9-2
SPECIFICATIONS ...................................... 10-1
CONSUMER INFORMATION ...................... 11-1 Identification numbers .............................. 11-1
U1BT62E0.book Page 3 Tuesday, April 19, 2011 7:06 PM

3-1
3
EBU17680
DESCRIPTION
EBU17690Left view
EBU17700Right view
1. Front shock absorber assembly spring preload adjusting ring
2. Spark plug
3. Fuel cock
4. Starter (choke)
5. Throttle stop screw
6. Rear shock absorber assembly spring preload adjusting nut
7. Owner ’s tool kit
8. Engine oil drain bolt
9. Shift pedal
345
6
7
2
1
9
8
1. Spark arrester
2. Fuse
3. Battery
4. Air filter case
5. Rear brake fluid reservoir
6. Fuel tank cap
7. Oil filter element
8. Engine oil filler cap
9. Brake pedal
10.Rear brake light switch
8
146
5
2,3
7
9
10
U1BT62E0.book Page 1 Tuesday, April 19, 2011 7:06 PM

4-3
4
EBU18101Start switch“”
Push this switch to crank the engine with the start-
er. See the starting instructions on page 6-1 prior
to starting the engine.EBU18154Light 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.NOTICEECB00043Do 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. (See page 8-35.)EBU18282Throttle lever Once the engine is running, pushing the throttle le-
ver will increase the engine speed. Regulate the speed of the ATV by varying the
throttle position. Because the throttle is spring-
loaded, the ATV will decelerate, and the engine will
return to an idle any time the throttle lever is re-
leased.
Before starting the engine, check the throttle to be
sure it is operating smoothly. Make sure it returns
to the idle position as soon as the lever is released.
1. Throttle lever
U1BT62E0.book Page 3 Tuesday, April 19, 2011 7:06 PM

6-2
6Ambient temp./starter (choke) position
6. Completely close the throttle lever and start the engine by pushing the start switch.
TIPIf 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
attempt.
7. If the engine is started with the starter (choke)in position (1), the starter (choke) should be
returned to position (2) to warm up the engine.
If the engine is started with the starter (choke)
in position (2), keep the starter (choke) in this
position to warm up the engine.
8. Continue warming up the engine until it idles smoothly, then return the starter (choke) to
position (3) before riding.TIPThe engine is warm when it responds quickly to the
throttle with the starter (choke) turned off.NOTICEECB00163For maximum engine life, never accelerate
hard when the engine is cold!EBU20291Starting a warm engine Follow the same procedure as for starting a cold
engine, with the exception that the starter (choke)
is not required when the engine is warm. Instead,
start the engine with the throttle slightly open.
1. Fully open
2. Half open
3. Closed
4. Starter (choke)
1 2 3
123 4
U1BT62E0.book Page 2 Tuesday, April 19, 2011 7:06 PM

8-35
8Right side
EBU25092Lubricating the steering shaft The steering shaft must be lubricated by a Yamaha
dealer at the intervals specified in the periodic
maintenance and lubrication chart.TIPFor parts equipped with a grease nipple, use a
grease gun.
EBU2522DBattery The battery is located under the seat. (See page
4-11.)
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.
WARNING
EWB02160Battery 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 nippleRecommended lubricant:
Lithium-soap-based grease
1
2
U1BT62E0.book Page 35 Tuesday, April 19, 2011 7:06 PM

8-36
8
KEEP OUT OF REACH OF CHILDREN.
NOTICEECB00620Never attempt to remove the battery cell seals,
as this would permanently damage the battery.To remove the battery
1. Remove the seat. (See page 4-11.)
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. NOTICE: When removing the bat-
tery, the main switch must be off, and the
negative lead must be disconnected be-
fore the positive lead.
[ECB01001]
4. Pull the battery out of its compartment.
1. Battery holding plate
2. Bolt
2
1
1. Negative battery lead (black)
2. Positive battery lead (red)
1 2
U1BT62E0.book Page 36 Tuesday, April 19, 2011 7:06 PM

8-37
8To 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.
NOTICEECB00931To charge a VRLA (Valve Regulated Lead Acid)
battery, a special (constant-voltage) battery
charger is required. Using a conventional bat-
tery charger will damage the battery.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.NOTICEECB00940Always keep the battery charged. Storing a dis-
charged battery can cause permanent battery
damage.
To install the batteryTIPBe 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.NOTICE: When installing the bat-
tery, the main switch must be off, and the
positive lead must be connected before
the negative lead.
[ECB01110]
1. Negative battery lead (black)
2. Positive battery lead (red)
1 2
U1BT62E0.book Page 37 Tuesday, April 19, 2011 7:06 PM

8-38
8
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 4-11.)
EBUM0183Replacing the fuse The fuse holder is located beside the battery and
can be accessed as follows: 1. Remove the seat. (See page 4-11.)
2. Unhook the band securing the owner ’s tool kit,
and then remove the battery holding plate by
removing the bolts.
If the fuse is blown, replace it as follows.1. Turn the key to “ OFF” and turn off all electrical
circuits.
NOTICEECB00640To 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! Always use a fuse of the spec- ified rating, and never use a substitute ob-
1. Battery holding plate
2. Bolt
2
1
1. Fuse
2. Spare fuse
1
2
U1BT62E0.book Page 38 Tuesday, April 19, 2011 7:06 PM

8-39
8ject in place of the proper fuse. An
improper fuse or a substitute object can
cause damage to the electrical system,
which could lead to a fire.
[EWB02172]
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 holding plate by installing the bolts, and then hook the band to secure
the owner ’s tool kit.
6. Install the seat.EBU25443Replacing a headlight bulb If a headlight bulb burns out, replace it as follows. 1. Remove the headlight unit by removing the bolt. 2. Disconnect the headlight coupler.
3. Remove the headlight bulb holder cover.
Specified fuse:
Fuse:15.0 A
1. Headlight unit
2. Bolt
1
2
U1BT62E0.book Page 39 Tuesday, April 19, 2011 7:06 PM

8-44
8
EBU25752Troubleshooting 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 have a Yamaha dealer charge
the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
U1BT62E0.book Page 44 Tuesday, April 19, 2011 7:06 PM