Vin YAMAHA GRIZZLY 250 2010 Owners Manual

Operating the drive select lever and
driving in reverse ...................................... 6-3
Shifting ....................................................... 6-4
Engine break-in .......................................... 6-6
Parking ....................................................... 6-7
Parking on a slope ..................................... 6-7
Accessories and loading ............................ 6-8
RIDING YOUR ATV ...................................... 7-1
GETTING TO KNOW YOUR ATV............... 7-2
RIDE WITH CARE AND GOOD
JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............. 7-9
TURNING YOUR ATV .............................. 7-12
CLIMBING UPHILL ................................... 7-14
RIDING DOWNHILL.................................. 7-16
CROSSING A SLOPE............................... 7-17
CROSSING THROUGH SHALLOW
WATER ................................................... 7-18
RIDING OVER ROUGH TERRAIN ........... 7-20
SLIDING AND SKIDDING ......................... 7-21
WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-1Periodic maintenance chart for
the emission control system .....................8-3
General maintenance and lubrication
chart ..........................................................8-5
Checking the spark plug .............................8-9
Engine oil and oil filter element .................8-11
Final gear oil .............................................8-17
Cleaning the air filter element ...................8-20
Cleaning the spark arrester ......................8-23
Adjusting the carburetor ............................8-25
Adjusting the engine idling speed .............8-25
Adjusting the throttle cable free play .........8-26
Valve clearance ........................................8-27
Adjusting the drive select lever safety
system cable ...........................................8-27
Brakes .......................................................8-27
Checking the front brake pads and rear
brake shoes ............................................8-27
Checking the brake fluid level ...................8-29
Changing the brake fluid ...........................8-29
Checking the front brake lever free play ...8-30
Adjusting the brake pedal position, free
play and the rear brake lever free play ...8-30
Brake light switches ..................................8-33
Adjusting the clutch free play ....................8-34
Checking and lubricating the cables .........8-35
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Checking and lubricating the front and
rear brake levers .................................... 8-35
Checking the shift pedal ........................... 8-36
Checking and lubricating the brake
pedal ...................................................... 8-36
Checking the wheel hub bearings ............ 8-37
Lubricating the swingarm pivots ............... 8-37
Lubricating the steering shaft ................... 8-37
Battery ...................................................... 8-38
Replacing the fuse ................................... 8-42
Replacing a headlight bulb ....................... 8-42
Adjusting a headlight beam ...................... 8-44
Replacing the tail/brake light bulb ............ 8-45
Removing a wheel .................................... 8-45
Installing a wheel ...................................... 8-46
Troubleshooting ....................................... 8-47
Troubleshooting chart .............................. 8-48
CLEANING AND STORAGE .......................... 9-1
Cleaning ..................................................... 9-1
Storage ....................................................... 9-2
SPECIFICATIONS ...................................... 10-1
CONSUMER INFORMATION ...................... 11-1
Identification numbers .............................. 11-1
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2-3
2speed 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 be sure there are no obstacles or people
behind you when you operate in reverse. When
it is safe to proceed in reverse, go slowly.
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
EWB00071Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon monoxide,
a deadly gas. Breathing carbon monoxide can
cause headaches, dizziness, drowsiness, nau-
sea, confusion, and eventually death.
Carbon Monoxide is a colorless, odorless,
tasteless gas which may be present even if you
do not see or smell any engine exhaust. Deadly
levels of carbon monoxide can collect rapidly
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4-6
4
EBU18460Parking brake Use the parking brake before starting the engine or
parking the ATV, especially on a slope. Apply the
rear brake lever and push down the lock plate to
apply the parking brake. Squeeze the rear brake
lever to release the parking brake.
WARNING
EWB00220
Always set the parking brake before starting
the engine. The ATV could start moving un-
expectedly if the parking brake is not ap-
plied. 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 re-
leasing the parking brake. You could lose
braking performance which could cause an
accident. You could also wear out the brakes
prematurely.EBU18550Shift pedal This ATV is equipped with a constant-mesh 5-
speed transmission. The shift pedal is located on
the left side of the engine. Neutral is at the bottom
position.
1. Parking brake lock plate
1. Shift pedal
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4-7
4
EBU18571Drive select lever The drive select lever is used for driving the ATV
either forward or in reverse. See the “Operating the
drive select lever and driving in reverse” section on
page 6-3 for the drive select lever operation.EBU27610Recoil starter Firmly grasp the handle and pull slightly until en-
gagement can be felt. Then pull forcefully, being
careful not to pull the rope all the way out.
WARNING
EWB02370Shift the transmission into the neutral position
and apply the parking brake before starting the
engine, otherwise the ATV could start to move
unexpectedly, which could cause an accident.EBU18720Fuel tank cap Remove the fuel tank cap by turning it counter-
clockwise.
1. Drive select lever
1. Recoil starter
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6-3
6
EBU20321Operating the drive select lever and
driving in reverse NOTICEECB00170Before shifting, stop the ATV, otherwise the
transmission may be damaged.Shifting: Reverse to Forward
1. Bring the ATV to a complete stop.
2. Apply the brake pedal.
3. Move the drive select lever forward until it
completely stops.
4. Release the brake pedal, and then open the
throttle lever gradually.
Shifting: Forward to Reverse
WARNING
EWB00720Improper operation in reverse could make you
hit an obstacle or even a person behind you,
resulting in serious injury. When you shift into
reverse, make sure there are no people or ob-
stacles behind you. When it is safe to proceed,
go slowly.1. Drive select lever
2. Forward “F”
3. Reverse “R”
F
R
2
3
1
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6-8
6
EBU20910Accessories and loading EBU20921Genuine Yamaha Accessories
Choosing accessories for your ATV is an important
decision. Genuine Yamaha Accessories, which
are available only from a Yamaha dealer, have
been designed, tested, and approved by Yamaha
for use on your ATV. Many companies with no con-
nection to Yamaha manufacture parts and acces-
sories or offer other modifications for Yamaha
vehicles. Yamaha is not in a position to test the
products that these aftermarket companies pro-
duce. Therefore, Yamaha can neither endorse nor
recommend the use of accessories not sold byYamaha or modifications not specifically recom-
mended by Yamaha, even if sold and installed by
a Yamaha dealer.
Aftermarket parts, accessories, and modifica-
tions
While you may find aftermarket products similar in
design and quality to genuine Yamaha Accesso-
ries, recognize that some aftermarket accessories
or modifications are not suitable because of poten-
tial safety hazards to you or others. Installing after-
market products or having other modifications
performed to your ATV that change any of the ve-
hicle’s design or operation characteristics can put
you and others at greater risk of serious injury or
death. You are responsible for injuries related to
changes in the vehicle.
Keep the following in mind when considering an
accessory or operating an ATV which has acces-
sories.

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
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7-6
7opening, even when the throttle lever is pushed to
the maximum. Turning in the adjusting screw limits
the maximum engine power available and de-
creases the maximum speed of the ATV. Turning
in the adjusting screw decreases top speed, and
turning it out increases top speed. (See page 4-4.)
Loading and accessories
WARNING
EWB01461Improper loading or towing can increase the
risk of loss of control, an overturn, or other ac-
cident. To reduce the risk of an accident:

Do not exceed the maximum loading limits
for the vehicle (see box in this section or ve-
hicle labeling).
Keep weight on racks centered side to side,
and as low as possible. Be sure cargo is se-
cured – a loose load could change handling
unexpectedly.
Make sure the load does not interfere with
your control or ability to see where you are
going.
Tie down cargo in the trailer securely. Make
sure cargo in the trailer cannot move around.
A shifting load can cause an accident.
Reduce speed and allow more room to stop.
A heavier vehicle takes longer to stop.
Avoid hills and rough terrain. Choose terrain
carefully. Use extreme caution when towing
or carrying a load on inclines.
Turn gradually and go slowly.Take extra precautions when driving with a load or
trailer. Follow these instructions and always use
common sense and good judgment when carrying
cargo or towing a trailer.
1. Adjusting screwU1P065E0.book Page 6 Monday, August 31, 2009 1:10 PM

7-7
7
Drive more slowly than you would without a load.
The more weight you carry, the slower you should
go. Although conditions vary, it is good practice to
drive slowly (shift into first gear or low drive if avail-
able on this model) whenever you are carrying
heavier loads or when towing a trailer.During operation
Always keep your feet on the footboards during op-
eration; otherwise, they may contact the rear
wheels. WARNING! Removing even one hand
or foot can reduce your ability to control the
ATV or could cause you to lose your balance
and fall off of the ATV. If you remove a foot
from a footboard, your foot or leg may come
into contact with the rear wheels, which could
injure you or cause an accident.
[EWB01471]
Avoid wheelies and jumping. WARNING! At-
tempting wheelies, jumps, and other stunts in-
creases the chance of an accident, including MAXIMUM LOADING LIMIT
ATV loading limit (total weight of cargo, rider,
accessories, and tongue):
165.0 kg (364 lb)
Fron t c a rr ie r :
30.0 kg (66 lb)
Rear carrier:
45.0 kg (99 lb)
Trailer hitch:
Pulling load (total weight of trailer and car-
go):
3230 N (330 kgf, 727 lbf)
Tongue weight (ver tical weight on trailer
hitch point):
147 N (15 kgf, 33 lbf)
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7-8
7an overturn. Never attempt stunts, such as
wheelies or jumps. Don’t try to show off.
[EWB01481]Modifications and accessories
Never modify this ATV through improper installa-
tion or use of accessories or other modification. All
parts and accessories added to this ATV should be
genuine Yamaha or equivalent components de-
signed for use on this ATV and should be installed
and used according to instructions. If you have
questions, consult an authorized ATV dealer.
WARNING! Operating this ATV with improper
modifications may cause changes in handling
which in some situations could lead to an acci-
dent.
[EWB01491]
Exhaust system
WARNING
EWB01501
Dry grass or brush or other combustible ma-
terial accumulated around the engine area
could catch fire. Do not operate, idle, or park
the ATV in dry grass or other dry ground cov-
er. Keep the engine area free of dry grass,
brush, or other combustible material.
Someone touching the exhaust system dur-
ing or after operation could be burned. Do
not touch the hot exhaust system. Do not
park the ATV in a place where others might
be likely to touch it.The muffler and other engine parts become ex-
tremely hot during operation and remain hot after
the engine has stopped. To reduce the risk of fire
during operation or after leaving the ATV, do not let
brush, grass and other materials collect under the
vehicle, near the muffler or exhaust pipe, or next to
other hot parts. Check under the vehicle after op-
erating in areas where combustible materials may
have collected. Do not idle or park the vehicle in
long dry grass or other dry ground cover.
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