EBU17420
TABLE OF CONTENTS
SAFETY INFORMATION .............................. 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 2-1
DESCRIPTION .............................................. 3-1
Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments ............................ 3-2
INSTRUMENT AND CONTROL
FUNCTIONS .................................................. 4-1
Main switch ................................................ 4-1
Indicator lights ............................................ 4-2
Speedometer .............................................. 4-2
Handlebar switches .................................... 4-3
Throttle lever .............................................. 4-4
Speed limiter .............................................. 4-5
Clutch lever ................................................ 4-6
Brake lever (YFM250R-W) .......................... 4-6
Brake lever (YFM250RSE-W) ..................... 4-7
Brake pedal ................................................ 4-7
Parking brake lever .................................... 4-8
Shift pedal .................................................. 4-9Fuel tank cap ..............................................4-9
Fuel ...........................................................4-10
Fuel cock ..................................................4-11
Starter (choke) ..........................................4-12
Steering lock .............................................4-13
Seat ..........................................................4-14
Adjusting the front shock absorber
assemblies (YFM250R-W).......................4-14
Adjusting the front shock absorber
assemblies (YFM250RSE-W) ..................4-15
Adjusting the rear shock absorber
assembly (YFM250R-W) .........................4-20
Adjusting the rear shock absorber
assembly (YFM250RSE-W).....................4-22
PRE-OPERATION CHECKS ..........................5-1
Pre-operation check list ..............................5-1
Fuel .............................................................5-3
Engine oil ....................................................5-3
Front and rear brakes .................................5-3
Throttle lever ...............................................5-4
Drive chain ..................................................5-4
Tires ............................................................5-4
Measuring the tire pressure ........................5-5U33B70E0.book Page 1 Wednesday, June 11, 2008 1:38 PM
Checking and lubricating the cables ........ 8-32
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 ............... 8-34
Lubricating the upper and lower arm
pivots ...................................................... 8-34
Lubricating the steering shaft ................... 8-35
Battery ...................................................... 8-36
Replacing the fuse ................................... 8-38
Headlight bulb .......................................... 8-39
Headlight beam ........................................ 8-40
Replacing the tail/brake light bulb ............ 8-40
Replacing a turn signal light bulb ............. 8-40
Auxiliary 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 ....................................................... 9-2SPECIFICATIONS .......................................10-1
CONSUMER INFORMATION.......................11-1
Identification numbers ...............................11-1
U33B70E0.book Page 3 Wednesday, June 11, 2008 1:38 PM
3-1
3
EBU17680
DESCRIPTION
EBU17690Left view
EBU17700Right view
1. Headlight
2. Fuel cock
3. Starter (choke)
4. Throttle stop screw
5. Fuse
6. Tail/brake light
7. Shift pedal
7 123456
1. Spark arrester
2. Seat
3. Fuel tank cap
4. Steering lock
5. Oil filter element
6. Brake pedal
5 123
4
6
U33B70E0.book Page 1 Wednesday, June 11, 2008 1:38 PM
4-13
4 Move the starter (choke) in direction (b) to turn off
the starter (choke).
See the “Starting a cold engine” section on page
6-1 for proper operation.
EBU28010Steering lock To lock the steering
1. Turn the handlebar all the way to either side.
2. Open the steering lock cap, and then insert
the steering lock key.
3. Turn the key 1/8 turn counterclockwise, push
it in, and then turn the key 1/8 turn clockwise.
4. Check that the steering is locked, remove the
key, and then close the steering lock cap.
1. Starter (choke)
(a)(b)1
1. Steering lock cap
2. Steering lock1
2
U33B70E0.book Page 13 Wednesday, June 11, 2008 1:38 PM
4-14
4To unlock the steering
1. Open the steering lock cap, and then insert
the key.
2. Turn the key 1/8 turn counterclockwise to re-
lease the lock.
3. Remove the key, and then close the steering
lock cap.
EBU18890Seat To remove the seat
Insert your hand between the rear of the seat and
the rear fender, pull the seat lock lever upward and
pull up the seat at the rear.To install the seat
Insert the projections on the front of the seat into
the seat holders and push down on the seat at the
rear.
TIPMake sure that the seat is securely fitted.EBU18991Adjusting the front shock absorber as-
semblies (YFM250R-W)The spring preload can be adjusted to suit the rid-
er’s weight and the riding conditions.
Adjust the spring preload as follows.
1. Seat lock lever
1
1. Projection
2. Seat holder
1
2
U33B70E0.book Page 14 Wednesday, June 11, 2008 1:38 PM
6-7
6
EBU20910Accessories and loading EBU20920Accessories
Accessories can affect the handling and control of
your ATV. Keep the following in mind when consid-
ering an accessory or operating an ATV which has
accessories.Choose only accessories designed for your
ATV. Your Yamaha dealer has a variety of gen-
uine Yamaha accessories. Other accessories
may also be available on the market. However,
it is not possible for Yamaha to test all non-
Yamaha accessories, nor control over their qual-
ity or suitability. Choose a genuine Yamaha ac-
cessory, or one that is equivalent in design and
quality.Accessories should be rigidly and securely
mounted. An accessory which can shift position
or come off while you are riding could affect your
ability to control the ATV.Do not mount an accessory where it could inter-
fere with your ability to control the ATV. Exam-
ples include (but are not limited to) a heavy or
bulky object attached to the handlebars whichcould make steering difficult, an accessory that
limits your ability to move around on the seat, or
one that limits your view.
Use extra caution when riding an ATV with ac-
cessories. The ATV may handle differently than
it does without accessories.EBU20940Loading
As originally equipped, this ATV is not designed to
carry cargo or tow a trailer. If you choose to add ac-
cessories so that you can carry cargo or tow a trail-
er, you must use common sense and good
judgment as the stability and handling of an ATV
can be changed. When adding accessories, keep
the following points in mind:Never exceed the weight limits shown. An over-
loaded ATV can be unstable.If you are carrying cargo and towing a trailer, in-
clude the tongue weight in the maximum ATV
load limit.MAXIMUM LOADING LIMIT
ATV loading limit (total weight of rider, cargo,
accessories, and tongue):
100.0 kg (220 lb)
U33B70E0.book Page 7 Wednesday, June 11, 2008 1:38 PM
7-19
7 As you travel across a slope, lean your body in the
uphill direction. It may be necessary to correct the
steering when riding on loose surfaces by pointing
the front wheels slightly uphill. When riding on
slopes, be sure not to make sharp turns either up
or down hill.
If your ATV does begin to tip over, gradually steer
in the downhill direction if there are no obstacles in
your path. As you regain proper balance, gradually
steer again in the direction you wish to travel.
WARNING
EWB01631Never attempt to turn the ATV around on any
hill until you have mastered the turning tech-
nique as described in the Owner’s Manual on
level ground. Be very careful when turning on
any hill. Avoid crossing the side of a steep hill
if possible.
When crossing the side of a hill:Always follow proper procedures as de-
scribed in the Owner’s Manual.Avoid hills with excessively slippery or loose
surfaces.Shift your weight to the uphill side of theATV.CROSSING THROUGH SHALLOW WATER
The ATV can be used to cross slow moving, shal-
low water of up to a maximum of 35 cm (14 in) in
depth. Before entering the water, choose your path
carefully. Enter where there is no sharp drop off,
and avoid rocks or other obstacles which may be
slippery or upset the ATV. Drive slowly and care-
fully.
U33B70E0.book Page 19 Wednesday, June 11, 2008 1:38 PM
7-22
7you go over obstacles, always follow proper
procedures as described in the Owner’s Manu-
al.
SLIDING AND SKIDDING
Care should be used when riding on loose or slip-
pery surfaces since the ATV may slide. If unex-
pected and uncorrected, sliding could lead to an
accident.
To reduce the tendency for the front wheels to slide
in loose or slippery conditions, positioning your
weight over the front wheels will sometimes help.If the rear wheels of your ATV start to slide side-
ways, control can usually be regained (if there is
room to do so) by steering in the direction of the
slide. Applying the brakes or accelerating is not
recommended until you have corrected the slide.
With practice, over a period of time, skill at con-
trolled sliding can be developed. The terrain
should be chosen carefully before attempting such
maneuvers, since both stability and control are re-
duced. Bear in mind that sliding maneuvers should
always be avoided on extremely slippery surfaces
such as ice, since all control may be lost.U33B70E0.book Page 22 Wednesday, June 11, 2008 1:38 PM