2009 YAMAHA YFM250R-W brake

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

Tire wear limit ............................................. 5-6
Chassis fasteners ....................................... 5-6
Instruments, lights and switches ................ 5-6
OPERATION .................................................. 6-1
Starting a cold engine ................................ 6-1
Starting a warm engine .............................. 6-3
Shifting ....................................................... 6-3
Engine break-in .......................................... 6-5
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-6
Accessories and loading ............................ 6-7
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 ............. 7-9
TURNING YOUR ATV .............................. 7-13
CLIMBING UPHILL ................................... 7-14
RIDING DOWNHILL.................................. 7-17
CROSSING A SLOPE............................... 7-18
CROSSING THROUGH SHALLOW
WATER ................................................... 7-19
RIDING OVER ROUGH TERRAIN ........... 7-21
SLIDING AND SKIDDING ......................... 7-22
WHAT TO DO IF... .................................... 7-23WHAT TO DO... .........................................7-23
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 .............................8-8
Engine oil and oil filter element ...................8-9
Cleaning the air filter element ...................8-13
Cleaning the spark arrester ......................8-17
Adjusting the carburetor ............................8-18
Adjusting the engine idling speed .............8-19
Adjusting the throttle cable free play .........8-20
Valve clearance ........................................8-20
Checking the front and rear brake pads ...8-21
Checking the brake fluid level ...................8-22
Changing the brake fluid ...........................8-24
Checking the front brake lever free play ...8-24
Checking the brake pedal position ............8-25
Adjusting the parking brake free play .......8-26
Brake light switches ..................................8-27
Adjusting the clutch lever free play ...........8-28
Drive chain slack .......................................8-29
Lubricating the drive chain ........................8-31
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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
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1-3
1 speed when climbing a hill. If you stall or roll
backwards, follow the special procedure for
braking described in this manual. Dismount on
the uphill side or to a side if pointed straight up-
hill. Turn the ATV around and remount, following
the procedure described in this manual.

Always check for obstacles before operating in a
new area.
Never attempt to operate over large obstacles,
such as large rocks or fallen trees. Always follow
proper procedures when operating over obsta-
cles as described in this manual.
Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such as
ice, go slowly and be very cautious in order to re-
duce the chance of skidding or sliding out of con-
trol.
Never operate an ATV in fast flowing water or in
water deeper than that recommended in this
manual. Remember that wet brakes may have
reduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several
times to let friction dry out the linings.

Always use the size and type of tires specified in
this manual.
Always maintain proper tire pressure as de-
scribed in this manual.
Never modify an ATV through improper installa-
tion or use of accessories.
Never exceed the stated load capacity for an
ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow in-
structions in this manual for carrying cargo or
pulling a trailer. Allow greater distance for brak-
ing.
WARNING
EWB00061
Always turn off the engine when refueling.
Do not refuel right after the engine has been
running and is still very hot.
Do not spill gasoline on the engine or ex-
haust pipe/muffler when refueling. Never re-
fuel while smoking, or in the vicinity of
sparks, open flames, or other sources of ig-
nition such as the pilot lights of water heat-
ers and clothes dryers. Gasoline can catch
fire and you could be burned.
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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
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3-2
3
EBU17712Controls and instruments
TIPThe ATV you have purchased may differ slightlyfrom the figures shown in this manual.
1. Clutch lever
2. Handlebar switches
3. Speedometer unit
4. Parking brake lever
5. Main switch
6. Engine stop switch
7. Throttle lever
8. Brake lever
1
4 2
3
5
7
6
8
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4-6
43. Tighten the locknut.
WARNING
EWB00240Improper adjustment of the speed limiter and
throttle could cause throttle cable damage or
improper throttle operation. You could lose
control, have an accident or be injured. Do not
turn the adjusting screw out more than 12 mm
(0.47 in) or the throttle cable could be dam-
aged. Always make sure the throttle lever free
play is adjusted to 2.0–4.0 mm (0.08–0.16 in).(See page 8-20.)EBU18382Clutch lever The clutch lever is located on the left handlebar
and the ignition circuit cut-off system is incorporat-
ed in the clutch lever holder. To disengage the
clutch, pull the clutch lever toward the handlebar
grip. To engage the clutch, release the clutch lever.
The clutch lever should be pulled rapidly and re-
leased slowly for smooth clutch operation. (See
page 6-1 for a description of the ignition circuit cut-
off system.)
EBU18411Brake lever (YFM250R-W)The brake lever is located at the right handlebar
grip. To apply the front brake, pull the brake lever
toward the handlebar grip.1. Clutch lever
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4-7
4
EBU18421Brake lever (YFM250RSE-W)The brake lever is located on the right handlebar.
To apply the front brake, pull the brake lever to-
ward the handlebar grip.
The brake lever is equipped with a position adjust-
ing bolt. To adjust the distance between the brake
lever and the handlebar grip, hold the brake lever
away from the handlebar so it does not contact the
adjusting bolt, loosen the locknut, turn the adjust-
ing bolt, and then tighten the locknut.
EBU28070Brake pedal The brake pedal is located on the right side of the
ATV.
This model is equipped with a unified brake sys-
tem.
When pressing down on the brake pedal, the brak-
ing force is applied to the rear brake and a portion
of the front brakes. For full braking performance,
apply both the brake lever and the brake pedal si-
multaneously.
1. Brake lever
1
1. Brake lever
2. Locknut
3. Brake lever position adjusting bolt
4. Distance between brake lever and handlebar grip
1
4
23
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