2011 YAMAHA YFM250R brake light

7-12
7 trol.
[EWB02631]
NOTICE: Do not shift gears without
releasing the throttle. Damage to the engine or
drive train may occur.
[ECB01071]
Use this same procedure as you move into the
higher gears. Be sure to coordinate the use of the
throttle and shift pedal properly.
Avoid higher speeds until you are thoroughly famil-
iar with the operation of your ATV.
When slowing down or stopping, release the throt-
tle and apply the brakes smoothly and evenly. As
you slow down, shift to a lower gear. Be sure that
the engine has sufficiently slowed before engaging
a lower gear. Improper use of the brakes or shifting
can cause the tires to lose traction, reducing con-
trol and increasing the possibility of an accident.
TURNING YOUR ATV
WARNING
EWB01771Always follow proper procedures for turning
as described in this Owner’s Manual. Practice
turning at low speeds before attempting to turn
at faster speeds. Do not turn at speeds too fast
for your skills or the conditions. ATV could go
out of control, causing a collision or overturn.
To achieve maximum traction on unpaved surfac-
es, the two rear wheels turn together at the same
speed. Therefore, unless the wheel on the inside
of the turn is allowed to slip or lose some traction,
the ATV will resist turning. A special turning tech-
nique must be used to allow the ATV to make turns
quickly and easily. It is essential that this skill be
learned first at low speed.
As you approach a curve, slow down and begin to
turn the handlebars in the desired direction. As you
do so, put your weight on the footrest to the outside
of the turn (opposite your desired direction) and
lean your upper body into the turn. Use the throttle
to maintain an even speed through the turn. This
maneuver will let the wheel on the inside of the turn
slip slightly, allowing the ATV to make the turn
properly.
U1BT61E0.book Page 12 Tuesday, April 6, 2010 1:28 PM

8-7
8
14*Chassis fastenersMake sure that all nuts, bolts, and screws are
properly tightened.√√√√√
15*Shock absorber as-
sembliesCheck operation and correct if necessary.
Check for oil leakage and replace if necessary.√√√
16*Steering shaftLubricate with lithium-soap-based grease.√√√
17*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
18 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
19Engine oil filter ele-
mentReplace.√√√
20*Moving parts and
cablesLubricate.√√√√
21*Throttle lever hous-
ing and cableCheck operation and correct if necessary.
Check throttle cable free play and adjust if neces-
sary.
Lubricate throttle lever housing and cable.√√√√√
22*Front and rear brake
switchesCheck operation and correct if necessary.√√√√√
23*Lights and switchesCheck operation and correct if necessary.
Adjust headlight beams.√√√√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320U1BT61E0.book Page 7 Tuesday, April 6, 2010 1:28 PM

8-27
8
TIPIf the cable length cannot be adjusted to specifica-
tion, consult a Yamaha dealer.6. Tighten the locknut on the brake cable.
7. Slide the rubber cover to its original position.
8. Turn in the adjusting bolt at the rear brake cal-
iper until it feels tight, then turn it out 1/8 turn
and tighten its locknut to the specified torque.
NOTICE: When tightening the locknut,hold the adjusting bolt with a wrench so
that it does not turn together with the lock-
nut.
[ECB00521]
WARNING
EWB02090Operating with improperly serviced or adjust-
ed brakes could cause the brakes to malfunc-
tion, resulting in reduced braking
performance. This could increase the chance
of a collision or accident. After adjusting the
parking brake free play, block the rear of the
ATV off the ground and spin the rear wheels.
Check to make sure there is no brake drag. If
brake drag is noticed, perform the adjustment
again.EBU24742Brake light switches The brake light, which is activated by the brake
pedal and brake lever, should come on just before
braking takes effect.
1. Rubber cover
2. Adjusting nut
3. Locknut
2
3
1(a)(b)
Tightening torque:
Locknut (rear brake caliper):
16 Nm (1.6 m·kgf, 12 ft·lbf)
U1BT61E0.book Page 27 Tuesday, April 6, 2010 1:28 PM

8-28
8The brake light switch for the brake pedal can be
adjusted as follows, but the front brake light switch
should be adjusted by a Yamaha dealer.
Turn the adjusting nut while holding the brake light
switch in place. To make the brake light come on
earlier, turn the adjusting nut in direction (a). To
make the brake light come on later, turn the adjust-
ing nut in direction (b).
EBU24811Adjusting the clutch lever free play The clutch lever free play must be checked and, if
necessary, adjusted at the intervals specified in the
periodic maintenance and lubrication chart.The clutch lever free play should measure 5.0–
10.0 mm (0.20–0.39 in) as shown. If the free play
is incorrect, adjust it as follows.
1. Slide the rubber cover back.
2. Loosen the locknut at the clutch lever.
3. To increase the clutch lever free play, turn the
adjusting bolt in direction (a), and to decrease
it, turn the bolt in direction (b).
4. Tighten the locknut.
5. Slide the rubber cover to its original position.1. Rear brake light switch
2. Rear brake light switch adjusting nut
12
(b)
(a)
1. Clutch lever free play
2. Locknut
3. Clutch lever free play adjusting bolt
4. Rubber cover1
3
4
(a) (b) 2
U1BT61E0.book Page 28 Tuesday, April 6, 2010 1:28 PM

8-41
8 6. Install the headlight bulb holder by pushing it
in and turning it clockwise.
7. Install the headlight bulb holder cover.
8. Connect the headlight coupler.
9. Install the headlight unit by installing the bolt.
10. Adjust the headlight beam if necessary.
EBU25561Adjusting a headlight beam NOTICEECB00690It is advisable to have a Yamaha dealer make
this adjustment.
To raise a headlight beam, turn the headlight beam
adjusting bolt in direction (a).
To lower a headlight beam, turn the adjusting bolt
in direction (b).EBU25580Replacing the tail/brake light bulb
(YFM25RA/YFM250RA)If the tail/brake light bulb burns out, have a
Yamaha dealer replace it.
1. Do not touch the glass part of the bulb.
1
1. Headlight beam adjusting bolt
1(a)
(b)
U1BT61E0.book Page 41 Tuesday, April 6, 2010 1:28 PM

8-42
8
EBU26920Tail/brake light
(YFM25RSEA/YFM250RSEA)This model is equipped with an LED type of
tail/brake light.
If the tail/brake light does not come on, have a
Yamaha dealer check it.EBU25651Removing a wheel 1. Place the ATV on a level surface.
2. Loosen the wheel nuts.
FrontRear
3. Elevate the ATV and place a suitable stand
under the frame.
4. Remove the nuts from the wheel.
5. Remove the wheel.
EBU27481Installing a wheel 1. Place the ATV on a level surface.
2. Install the wheel and the nuts.TIPWhen installing the wheel, make sure its arrow
mark points toward the rotating direction of the
wheel.
1. Wheel nut1
1
1. Wheel nut
U1BT61E0.book Page 42 Tuesday, April 6, 2010 1:28 PM

10-4
10
Rim size:
9 x 8.0ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
YFM250RA Coil spring/oil damper
YFM250RSEA Coil spring/gas-oil damper
YFM25RA Coil spring/oil damper
YFM25RSEA Coil spring/gas-oil damper
Wheel travel:
190 mm (7.5 in)Rear suspension:Type:
Swingarm
Spring/shock absorber type:
Coil spring/gas-oil damperWheel travel:
200 mm (7.9 in)
Electrical system:Ignition system:
DC CDI
Charging system:
AC magnetoBattery:Model:
YTZ7S
Voltage, capacity:
12 V, 6.0 AhHeadlight:Bulb type:
Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30/30 W × 2
Tail/brake light:
YFM250RA 12 V, 5.0/21.0 W × 1
YFM25RA 12 V, 5.0/21.0 W × 1
Tail/brake light:
YFM250RSEA LED
YFM25RSEA LED
Neutral indicator light:
12 V, 1.7 W × 1Fuse:Fuse:
15.0 A
U1BT61E0.book Page 4 Tuesday, April 6, 2010 1:28 PM

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-14BBattery .......................................................................... 8-35
Brake and clutch levers, checking and lubricating ....... 8-32
Brake fluid, changing .................................................... 8-25
Brake fluid level, checking ............................................ 8-23
Brake lever free play, checking the front ...................... 8-25
Brake lever (YFM25RA/YFM250RA) ............................. 4-5
Brake lever (YFM25RSEA/YFM250RSEA) .................... 4-5
Brake light switches ..................................................... 8-27
Brake pads, checking the front and rear ...................... 8-22
Brake pedal .................................................................... 4-6
Brake pedal, checking and lubricating ......................... 8-33
Brake pedal position, checking .................................... 8-25
Brakes .......................................................................... 8-22
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-31
Carburetor, adjusting .................................................... 8-20
Chassis fasteners ........................................................... 5-6
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-4
Clutch lever free play, adjusting ................................... 8-28DDrive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-31Drive chain slack .......................................................... 8-29
EEngine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-20
Engine oil ....................................................................... 5-3
Engine oil and oil filter element .................................... 8-11
Engine, starting a warm ................................................. 6-2
Engine stop switch ......................................................... 4-2FFuel ......................................................................... 4-8, 5-3
Fuel cock ...................................................................... 4-10
Fuel tank cap .................................................................. 4-8
Fuse, replacing ............................................................. 8-38HHandlebar switches ........................................................ 4-2
Headlight beam, adjusting ............................................ 8-41
Headlight bulb, replacing .............................................. 8-39IIdentification numbers .................................................. 11-1
Indicator light .................................................................. 4-2
Instruments, lights and switches .................................... 5-6LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-3MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
U1BT61E0.book Page 1 Tuesday, April 6, 2010 1:28 PM