2010 YAMAHA GRIZZLY 125 brake light

EBU17420
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 1-1
SAFETY INFORMATION .............................. 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 ........................................... 4-1
Handlebar switches ................................... 4-2
Throttle lever ............................................. 4-3
Speed limiter ............................................. 4-3
Front brake lever ....................................... 4-4
Rear brake lever ........................................ 4-4
Parking brake ............................................ 4-5
Drive select lever ....................................... 4-6
Fuel tank cap ............................................. 4-6
Fuel ........................................................... 4-6
Fuel cock ................................................... 4-8
Starter (choke) .......................................... 4-9Seat ......................................................... 4-10
Front carrier ............................................. 4-11
Rear carrier .............................................. 4-11
PRE-OPERATION CHECKS ..........................5-1
Fuel ............................................................ 5-3
Engine oil ................................................... 5-3
Transmission oil ......................................... 5-3
Front and rear brakes ................................ 5-3
Throttle lever .............................................. 5-3
Drive chain ................................................. 5-3
Tires ........................................................... 5-3
Chassis fasteners ...................................... 5-5
Instruments, lights and switches ................ 5-6
Battery ....................................................... 5-6
OPERATION...................................................6-1
Starting a cold engine ................................ 6-1
Starting a warm engine .............................. 6-2
Operating the drive select lever and
driving in reverse .....................................6-3
Engine break-in .......................................... 6-4
Parking ....................................................... 6-5
Parking on a slope ..................................... 6-5
Accessories and loading ............................ 6-6

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 .................................. 7-13
RIDING DOWNHILL................................. 7-16
CROSSING A SLOPE.............................. 7-17
CROSSING THROUGH SHALLOW
WATER .................................................. 7-18
RIDING OVER ROUGH TERRAIN .......... 7-20
SLIDING AND SKIDDING ........................ 7-20
WHAT TO DO IF... ................................... 7-21
WHAT TO DO... ....................................... 7-21
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 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 .................................................. 8-9
Transmission oil ...................................... 8-12
Cleaning the engine and V-belt case
air filter elements ................................... 8-15
Cleaning the spark arrester ..................... 8-21V-belt case drain plug .............................. 8-23
Adjusting the carburetor ........................... 8-23
Adjusting the engine idling speed ............ 8-23
Adjusting the throttle cable free play ........ 8-24
Valve clearance ....................................... 8-25
Brakes ...................................................... 8-26
Checking the front and rear brake
shoes .....................................................8-26
Adjusting the front brake lever free
play ........................................................8-27
Adjusting the rear brake lever free
play ........................................................8-31
Drive chain slack ...................................... 8-32
Lubricating the drive chain ....................... 8-35
Checking and lubricating the cables ........ 8-36
Checking and lubricating the front
and rear brake levers .............................8-36
Checking the wheel hub bearings ............ 8-37
Lubricating the upper and lower arm
pivots .....................................................8-37
Lubricating the front knuckle pivots ......... 8-38
Lubricating the steering shaft ................... 8-38
Battery ..................................................... 8-39
Replacing the fuse ................................... 8-42
Replacing a headlight bulb ...................... 8-43
Adjusting a headlight beam ..................... 8-45
Replacing the tail/brake light bulb ............ 8-45
Removing a wheel ................................... 8-46
Installing a wheel ..................................... 8-46

3-1
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EBU17680
DESCRIPTION
EBU17690
Left view
EBU17700
Right view
1. Front carrier
2. Starter (choke)
3. Fuel cock
4. Tail/brake light
5. Rear carrier
6. Spark arrester
7. Footboard
12
3456
7

1. Seat
2. Drive select lever
3. Headlight
12 3

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Controls and instrumentsTIP
The ATV you have purchased may differ slightly
from the figures shown in this manual.
1. Rear brake lever
2. Parking brake
3. Reverse indicator light
4. Neutral indicator light
5. Front brake lever
6. Throttle lever
7. Main switch
8. Fuel tank cap
9. Handlebar switches
12
34
5
9876

5-2
1
2
3
45
6
7
8
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10
11

Throttle lever

Make sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.

Check cable free play, and adjust if necessary.5-3, 8-24
Control cables

Make sure that operation is smooth. Lubricate if necessary. 8-36
Drive chain

Check chain slack, and adjust if necessary.

Check chain condition. Lubricate if necessary.5-3, 8-32, 8-35
Wheels and tires

Check wheel condition, and replace if damaged.

Check tire condition and tread depth. Replace if necessary.

Check air pressure. Correct if necessary.5-3
Brake levers

Make sure that operation is smooth. Lubricate lever pivoting points
if necessary.8-36
Chassis fasteners

Make sure that all nuts, bolts and screws are properly tightened. 5-5
Instruments, lights and
switches

Check operation, and correct if necessary. 5-6
Battery

Check electrolyte level. Fill with distilled water if necessary. 5-6, 8-39
ITEM ROUTINE PAGE

6-1
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OPERATION
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Read the Owner’s Manual carefully before riding
the ATV. If there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING

EWB00631
Read the Owner’s Manual carefully to become
familiar with all controls in order to help pre-
vent any loss of control, which could cause an
accident or injury.
EBU29720
Starting a cold engine
NOTICE

ECB00150
See the “Engine break-in” section on page 6-4
prior to operating the engine for the first time.
1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the key to “ON” and the engine stop
switch to “”.
4. Shift the drive select lever into the neutral po-sition. The neutral indicator light should come
on. If the indicator light does not come on,
have a Yamaha dealer check the electrical cir-
cuit.
TIP

The engine can be started only when the drive se-
lect lever is in the neutral position.
5. Use the starter (choke) in reference to the fig-
ure:
Position (1):
Cold engine start with ambient temperature
below 5 °C (40 °F).
Position (2):
Cold engine start with ambient temperature
between 0 °C (30 °F) and 30 °C (90 °F).
Position (3):
Cold engine start with ambient temperature
above 25 °C (80 °F).

6-4
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go slowly.
1. Bring the ATV to a complete stop.
2. Apply the parking brake.
3. Shift from neutral to reverse and vice versa by
moving the drive select lever along the shift
guide.
TIP

When in reverse, the reverse indicator light should
come on. If the indicator light does not come on,
have a Yamaha dealer check the electrical circuit.
4. Check behind for people or obstacles, and
then release the parking brake.
5. Open the throttle lever gradually and continue
to watch to the rear while backing.
TIP

If the drive select lever is shifted into reverse while
the engine is running, the engine will stop unless
the rear brake lever or parking brake is applied.
EBU20682
Engine break-in
TIP


For ATVs equipped with an odometer or an hourmeter, follow the figures given in km (mi) or the
figures given in hours.

For ATVs not equipped with an odometer or
hour meter, follow the figures given in hours.
There is never a more important period in the life of
your engine than the first 320 km (200 mi) or 20
hours of riding. For this reason, you should read
the following material carefully.
Since the engine is brand new, do not put an ex-
cessive load on it for the first 320 km (200 mi) or 20
hours. The various parts in the engine wear and
polish themselves to the correct operating clear-
ances. During this period, prolonged full-throttle
operation or any condition that might result in en-
gine overheating must be avoided.
0–160 km (0–100 mi) or 0–10 hours
Avoid prolonged operation above 1/2 throttle. Vary
the speed of the ATV regularly. Do not operate it at
one set throttle position.
160–320 km (100–200 mi) or 10–20 hours
Avoid prolonged operation above 3/4 throttle. Rev
the engine freely, but do not use full throttle at any
time.

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TIP

Some maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or
muddy areas, or at full-throttle.
19
*
Throttle lever hous-
ing and cable

Check operation and correct if necessary.

Check throttle cable free play and adjust if neces-
sary.

Lubricate throttle lever housing and cable.
√√√√√
20
*
Front and rear brake
switches


Check operation and correct if necessary.
√√√√√
21
*
Lights and switches


Check operation and correct if necessary.

Adjust headlight beams.
√√√√√
22
*
Battery

Check electrolyte level and specific gravity, and
correct if necessary.

Make sure that the breather hose is properly
routed.
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NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320