Yamaha YFM250R-W, YFM250RSE-W User Manual
READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER’S MANUAL
YFM250R-W
YFM250RSE-W
33B-F8199-70
EBU28980
Read this manual carefully before operating this vehicle. This manual should stay with this ve-
hicle if it is sold.
EBU17170
INTRODUCTION
EBU17321
Congratulations on your purchase of the Yamaha YFM250R-W/YFM250RSE-W. This ATV represents the
result of many years of Yamaha experience in the production of fine sporting, touring, and pacesetting racing machines. With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship
and reliability that have made Yamaha a leader in these fields.
This manual will provide you with a good basic understanding of the features and operation of this ATV.
This manual includes important safety information. It provides information about special techniques and skills necessary to ride the ATV. It also includes basic maintenance and inspection proce-
dures. If you have any questions regarding the operation or maintenance of your ATV, please consult a
Yamaha dealer.
AN IMPORTANT SAFETY MESSAGE:
● READ THIS MANUAL COMPLETELY BEFORE OPERATING YOUR ATV. MAKE SURE YOU UNDER-
STAND ALL INSTRUCTIONS.
● PAY CLOSE ATTENTION TO THE WARNING AND NOTICE LABELS ON THE ATV.
● THIS ATV, AND ANY OTHER ATV OVER 90 cc, SHOULD NOT BE RIDDEN BY ANYONE UNDER 16
YEARS OF AGE.
● THIS ATV IS A HIGH-PERFORMANCE ATV FOR OFF-ROAD USE ONLY, FOR SPORT-TYPE REC-
REATIONAL AND COMPETITIVE USE BY EXPERIENCED OPERATORS.
EBU17330
IMPORTANT MANUAL INFORMATION
EBU17342
FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS INJURY OR DEATH.
Particularly important information is distinguished in this manual by the following notations:
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
WARNING
NOTICE
TIP
A WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid
damage to the vehicle or other property.
A TIP provides key information to make procedures easier or clearer.
* Product and specifications are subject to change without notice.
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IMPORTANT NOTICE
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Welcome to the Yamaha world of motor sports!
This ATV is designed and manufactured for use on UNPAVED surfaces only. It is unsafe to operate this
ATV on any paved surface, paved street, paved road or motorway.
Please check your local riding laws and regulations before operating this ATV.
EBUM0010
YFM250R-W/YFM250RSE-W
OWNER’S MANUAL
©2008 by MBK INDUSTRIE
1st edition, June 2008
All rights reserved
Any reprinting or unauthorized use
without the written permission of
MBK INDUSTRIE
is expressly prohibited.
Printed in France.
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 .................................................. 4-9
Fuel 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 ........................5-5
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... .................................... 7-23
WHAT 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
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 ....................................................... 9-2
SPECIFICATIONS .......................................10-1
CONSUMER INFORMATION.......................11-1
Identification numbers ...............................11-1
EBU17430
SAFETY INFORMATION
EBU17592
AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE.
An ATV handles differently from other vehicles, including motorcycles and cars. A collision or rollover can occur quickly, even during routine
maneuvers such as turning and riding on hills or
over obstacles, if you fail to take proper precautions.
SEVERE INJURY OR DEATH can result if you do
not follow these instructions:
● Read this manual and all labels carefully and fol-
low the operating procedures described.
● Never operate an ATV without proper training or
instruction.
● Always follow the age recommendation:
– A child under 16 years old should never operate an ATV with engine size greater than 90 cc.
● Never allow a child under age 16 to operate an
ATV without adult supervision, and never allow
continued use of an ATV by a child if he or she
does not have the abilities to operate it safely.
1
● Never carry a passenger on an ATV.
● Always avoid operating an ATV on any paved
surfaces, including sidewalks, driveways, parking lots and paved streets.
● Never operate an ATV on any paved street,
paved road or motorway.
● Watch carefully for other vehicles when operat-
ing on unpaved public streets or roads. Make
sure you know your country’s laws and regulations before you ride on unpaved public streets
or roads.
● Never operate an ATV without wearing an ap-
proved motorcycle helmet that fits properly. You
should also wear eye protection (goggles or face
shield), gloves, boots, a long-sleeved shirt or a
jacket, and long pants.
● Never consume alcohol or drugs before or while
operating this ATV.
● Never operate at speeds too fast for your skills
or the riding conditions. Always go at a speed
that is proper for the terrain, visibility, operating
conditions, and your experience.
● Never attempt wheelies, jumps, or other stunts.
1-1
● Always inspect your ATV each time you use it to
make sure it is in safe operating condition. Al-
1
ways follow the inspection and maintenance
procedures and schedules described in this
manual.
● Always keep both hands on the handlebars and
both feet on the footrests of the ATV during operation.
● Always go slowly and be extra careful when op-
erating on unfamiliar terrain. Always be alert to
changing terrain conditions when operating the
ATV.
● Never operate on excessively rough, slippery or
loose terrain until you have learned and practiced the skills necessary to control the ATV on
such terrain. Always be especially cautious on
these kinds of terrain.
● Always follow proper procedures for turning as
described in this manual. Practice turning at low
speeds before attempting to turn at faster
speeds and never turn at excessive speeds.
● Never operate the ATV on hills too steep for the
ATV or for your abilities. Practice on smaller hills
before attempting larger hills.
● Always follow proper procedures for climbing
hills as described in this manual. Check the terrain carefully before you start up any hill. Never
climb hills with excessively slippery or loose surfaces. Shift your weight forward. Never open the
throttle suddenly or make sudden gear changes.
Never go over the top of a hill at high speed.
● Always follow proper procedures for going down
hills and for braking on hills as described in this
manual. Check the terrain carefully before you
start down any hill. Shift your weight backward.
Never go down a hill at high speed. Avoid going
down a hill at an angle that would cause the vehicle to lean sharply to one side. Go straight
down the hill where possible.
● Always follow proper procedures for crossing
the side of a hill as described in this manual.
Avoid hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the
ATV. Never attempt to turn the ATV around on
any hill until you have mastered the turning technique described in this manual on level ground.
Avoid crossing the side of a steep hill if possible.
● Always use proper procedures if you stall or roll
backwards when climbing a hill. To avoid stalling, use the proper gear and maintain a steady
1-2
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 uphill. 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 obstacles 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 reduce the chance of skidding or sliding out of control.
● 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 instructions in this manual for carrying cargo or
pulling a trailer. Allow greater distance for braking.
EWB00061
WARNING
● 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 refuel while smoking, or in the vicinity of
sparks, open flames, or other sources of ignition such as the pilot lights of water heaters and clothes dryers. Gasoline can catch
fire and you could be burned.
1
1-3
● When transporting the ATV in another vehi-
cle, be sure it is kept upright and that the fuel
1
cock is in the “OFF” position. Otherwise, fuel
may leak out of the carburetor or fuel tank.
● Gasoline is poisonous. If you should swal-
low some gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your eyes,
seek medical help immediately. If gasoline
spills on your skin, wash with soap and water. If gasoline spills on your clothing,
change your clothes.
EWB00070
WARNING
Always operate your ATV in an area with adequate ventilation. Never start or run the engine
in a closed area. Exhaust fumes are poisonous
and may cause loss of consciousness and
death within a short time.
1-4
EBU17660
LOCATION OF THE WARNING AND SPECIFICATION LABELS
4
2
2
1
5
3
6
8
7
2-1
EBU17670
Read and understand all of the labels on your ATV. These labels contain important information for safe and
proper operation.
Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a replace-
2
ment label from your Yamaha dealer.
2-2
2-322-423-1
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DESCRIPTION
EBU17690
Left view
123456
EBU17700
Right view
123
7
1. Headlight
2. Fuel cock
3. Starter (choke)
4. Throttle stop screw
5. Fuse
6. Tail/brake light
7. Shift pedal
1. Spark arrester
2. Seat
3. Fuel tank cap
4. Steering lock
5. Oil filter element
6. Brake pedal
3
4
5
6
EBU17712
Controls and instruments
1 42 3 5 76 8
3
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
TIP
The ATV you have purchased may differ slightly
from the figures shown in this manual.
3-2
EBU17732
INSTRUMENT AND CONTROL FUNCTIONS
EBUM0020
Main switch
The positions of the main switch are as follows:
OFF ON
ON
All electrical systems are supplied with power. The
auxiliary light, meter lighting and taillight come on
when the light switch is on, and the engine can be
started. The key cannot be removed.
OFF
All electrical systems are off. The key can be removed.
1
4
1. Main switch
4-1
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Indicator lights
21
4
1. High beam indicator light “ ”
2. Turn signal indicator light “ ”
3. Neutral indicator light “N”
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Turn signal indicator light “”
This indicator light flashes when the turn signal
switch is pushed to the left or right.
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Neutral indicator light “”
This indicator light comes on when the transmission is in the neutral position.
3
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High beam indicator light “”
This indicator light comes on when the high beam
of the headlight is switched on.
EBU28050
Speedometer
The speedometer shows the riding speed. This
speedometer is equipped with an odometer. The
odometer shows the total distance traveled.
1. Speedometer
2. Odometer
4-2
EBU18061
Handlebar switches
12345
4
1. Engine stop switch “ / ”
1. Light switch “ / / ”
2. Start switch “ ”
3. Horn switch “ ”
4. Hazard switch “ ”
5. Turn signal switch “ / ”
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 “ ”.
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Start switch “”
Push this switch to crank the engine with the starter.
4-3
ECB00050
NOTICE
See the starting instructions on page 6-1 prior
to starting the engine.
EBU28061
Light switch “ //”
Set the switch to “ ” to turn on the high beam.
4
Set this switch to “ ” to turn on the low beam.
Set the switch to “ ” to turn off the headlight.
ECB00030
NOTICE
Do not use the headlight with the engine turned
off for an extended period of time, otherwise
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.
EBU27990
Turn signal switch “ / ”
To signal a right-hand turn, push this switch
to “ ”. To signal a left-hand turn, push this switch
to “ ”. When released, the switch returns to the
center position. To cancel the turn signal lights,
push the switch in after it has returned to the center
position.
EBU18170
Horn switch “”
Press the switch to sound the horn.
EBUM0220
Hazard switch “”
Turn this switch to “ ” to turn on the hazard lights
(simultaneous flashing of all turn signal lights).
The hazard lights are used in case of an emergency or to warn other drivers when your vehicle is
stopped where it might be a traffic hazard.
ECB00860
NOTICE
Do not use the hazard lights for an extended
length of time with the engine not running, otherwise the battery may discharge.
EBU18280
Throttle lever
Once the engine is running, movement of the throttle lever will increase the engine speed.
Regulate the speed of the ATV by varying the
throttle position. Because the throttle is springloaded, the ATV will decelerate, and the engine will
return to an idle any time the hand is removed from
the throttle lever.
4-4
1. Throttle lever
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.
EWB00250
WARNING
Malfunction of the throttle could make it difficult to speed up or slow down when you need
to. This could cause an accident. Check the operation of the throttle lever before you start the
engine. If the throttle does not work smoothly,
check for the cause. Correct the problem before riding the ATV or consult a Yamaha dealer.
EBU18321
Speed limiter
Your ATV was delivered with an adjustable speed
limiter. The speed limiter keeps the throttle from
fully opening, even when the throttle lever is
pushed to the maximum.
1. Loosen the locknut.
2. To increase the maximum engine power available and the maximum speed of the ATV, turn
the adjusting screw in direction (a). To decrease the maximum engine power available
and the maximum speed of the ATV, turn the
adjusting screw in direction (b).
1
3
1. Locknut
2. Adjusting screw
3. No more than 12 mm (0.47 in)
2
(b)
(a)
4
4-5
3. Tighten the locknut.
EWB00240
WARNING
Improper 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
4
(0.47 in) or the throttle cable could be damaged. 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.)
1. Clutch lever
EBU18382
Clutch lever
The clutch lever is located on the left handlebar
and the ignition circuit cut-off system is incorporated 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 released slowly for smooth clutch operation. (See
page 6-1 for a description of the ignition circuit cutoff system.)
EBU18411
Brake 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.
4-6
3
2
1
1
4
4
1. Brake lever
EBU18421
Brake lever (YFM250RSE-W)
The brake lever is located on the right handlebar.
To apply the front brake, pull the brake lever toward the handlebar grip.
The brake lever is equipped with a position adjusting 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 adjusting bolt, and then tighten the locknut.
1. Brake lever
2. Locknut
3. Brake lever position adjusting bolt
4. Distance between brake lever and handlebar grip
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Brake pedal
The brake pedal is located on the right side of the
ATV.
This model is equipped with a unified brake system.
When pressing down on the brake pedal, the braking 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 simultaneously.
4-7
1
4
1. Brake pedal
EBU18520
Parking brake lever
Use the parking brake before starting the engine or
parking the ATV, especially on a slope. To apply
the parking brake, move the parking brake lever in
direction (a). To release the parking brake, move
the parking brake lever in direction (b).
1. Parking brake lever (locked position)
1. Parking brake lever (unlocked position)
4-8
EWB00220
WARNING
● Always set the parking brake before starting
the engine. The ATV could start moving unexpectedly if the parking brake is not applied. This could cause loss of control or a
collision.
● Always be sure you have released the park-
ing brake before you begin to ride. The brake
could overheat if you ride the ATV without releasing the parking brake. You could lose
braking performance which could cause an
accident. You could also wear out the brakes
prematurely.
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Shift pedal
This ATV is equipped with a constant-mesh 5speed transmission. The shift pedal is located on
the left side of the engine and is used in combination with the clutch when shifting.
4
1
1. Shift pedal
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Fuel tank cap
Remove the fuel tank cap by turning it counterclockwise.
4-9
4
1
1. Fuel tank cap
EBU28940
Fuel
Make sure that there is sufficient fuel in the tank.
Fill the fuel tank to the bottom of the filler tube as
shown.
1. Fuel level
2. Filler tube
Recommended fuel:
Regular unleaded gasoline only with a research octane number of 91 or higher
Fuel tank capacity:
9.0 L (2.38 US gal, 1.98 Imp.gal)
Fuel reserve amount:
1.0 L (0.26 US gal, 0.22 Imp.gal)
TIP
If knocking or pinging occurs, use a different brand
of gasoline or higher octane grade.
4-10
ECB00070
NOTICE
Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system.
EWB00310
WARNING
● Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is overfilled,
fuel could spill out due to heat from the engine or the sun.
● Be careful not to spill fuel, especially on the
engine or exhaust pipe which can cause a
fire and severe injury. Wipe up any spilled
fuel immediately.
● Do not refuel right after the engine has been
running and is still very hot.
● Be sure the fuel tank cap is closed securely.
EBU18820
Fuel cock
The fuel cock supplies fuel from the tank to the carburetor while also filtering it.
The fuel cock lever positions are explained as follows and shown in the illustrations.
OFF
OFF
1
1. Arrow mark positioned over “OFF”
With the fuel cock lever in this position, fuel will not
flow. Always turn the fuel cock lever to this position
when the engine is not running.
4
4-11
ON
RES
RES
1
4
ON
1. Arrow mark positioned over “ON”
1
With the fuel cock lever in this position, fuel flows
to the carburetor. Turn the fuel cock lever to this
position when starting the engine and riding.
1. Arrow mark positioned over “RES”
This indicates reserve. With the fuel cock lever in
this position, the fuel reserve is made available.
Turn the fuel cock lever to this position if you run
out of fuel while riding. When this occurs, refuel as
soon as possible and be sure to turn the fuel cock
lever back to “ON”!
EBU18840
Starter (choke)
Starting a cold engine requires a richer air-fuel mixture, which is supplied by the starter (choke).
Move the starter (choke) in direction (a) to turn on
the starter (choke).
4-12
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