2012 YAMAHA GRIZZLY 125 transmission

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 ............................................ 4-2
Handlebar switches .................................... 4-2
Throttle lever .............................................. 4-3
Speed limiter .............................................. 4-4
Front brake lever ........................................ 4-4
Rear brake lever ......................................... 4-5
Parking brake ............................................. 4-5
Drive select lever ........................................ 4-6
Fuel tank cap .............................................. 4-7
Fuel ............................................................ 4-7
Fuel cock .................................................... 4-8Starter (choke) ..........................................4-10
Seat ..........................................................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 .......................................5-6
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 ........................................................6-5U1PY60E0.book Page 1 Friday, March 11, 2011 9:30 AM

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 ................................... 7-14
RIDING DOWNHILL.................................. 7-16
CROSSING A SLOPE............................... 7-17
CROSSING THROUGH SHALLOW
WATER ................................................... 7-18
RIDING OVER ROUGH TERRAIN ........... 7-20
SLIDING AND SKIDDING ......................... 7-20
WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1
Owner’s manual and tool kit ....................... 8-2
Periodic maintenance chart for
the emission control system ..................... 8-3
General maintenance and lubrication
chart ......................................................... 8-5
Checking the spark plug ............................. 8-9Engine oil ..................................................8-11
Transmission oil ........................................8-14
Cleaning the engine and V-belt case air
filter elements .........................................8-17
Cleaning the spark arrester ......................8-23
V-belt case drain screw ............................8-24
Adjusting the carburetor ............................8-25
Adjusting the engine idling speed .............8-25
Adjusting the throttle lever free play .........8-26
Valve clearance ........................................8-27
Brakes .......................................................8-27
Checking the front and rear brake
shoes ......................................................8-27
Adjusting the front brake lever free play ...8-28
Adjusting the rear brake lever free play ....8-32
Drive chain slack .......................................8-34
Lubricating the drive chain ........................8-36
Checking and lubricating the cables .........8-37
Checking and lubricating the front and
rear brake levers .....................................8-38
Checking the wheel hub bearings .............8-38
Lubricating the lower arm pivots ...............8-39
Lubricating the front knuckle pivots ..........8-40
Lubricating the steering shaft ....................8-40
Battery ......................................................8-41
Replacing the fuse ....................................8-44
Replacing a headlight bulb .......................8-44
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5-1
5
EBU19201
PRE-OPERATION CHECKS
EBU19224Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWB00481Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equip-
ment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected
by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer.Before using this vehicle, check the following points:
ITEM ROUTINE PAGE
FuelCheck fuel level in fuel tank, and add recommended fuel if neces-
sary.
Check fuel line for leakage. Correct if necessary.4-7, 5-3
Engine oilCheck oil level in engine, and add recommended oil to specified lev-
el if necessary.
Check ATV for oil leakage. Correct if necessary.5-3, 8-11
Transmission oilCheck oil level in transmission case, and add recommended oil to
specified level if necessary.
Check ATV for oil leakage. Correct if necessary.5-3, 8-14
Front brakeCheck operation, and correct if necessary.
Lubricate cable if necessary.
Check lever free play, and adjust if necessary.5-3, 8-27, 8-28
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5-3
5
EBU19541Fuel Make sure that there is sufficient fuel in the tank.
(See page 4-7.)EBU19560Engine oil Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-11.)EBU19580Transmission oil Make sure that the transmission oil is at the speci-
fied level. Add oil as necessary. (See page 8-14.)EBU19652Front and rear brakes Brake levers
Check for correct free play in the brake levers. If
the free play is incorrect, adjust it. (See pages
8-28 and 8-32.)
Check operation of the levers. They should
move smoothly and there should be a firm feel-
ing when the brake is applied. If not, have the
ATV checked by a Yamaha dealer.Brake operation
Test the brakes at slow speed after starting out to
make sure they are working properly. If the brakes
do not provide proper braking performance, check
the brake shoes for wear. (See page 8-27.)
EBU19761Throttle lever Check the operation of the throttle lever. It must
open smoothly and spring back to the idle position
when released. Have a Yamaha dealer correct if
necessary.EBU19770Drive chain Check the condition of the drive chain and check
the drive chain slack. Lubricate and adjust the
drive chain as necessary. (See page 8-34.)EBU19794Tires Check tire pressure regularly to make sure it is at
the recommended specifications. Also check for
wear and damage.
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6-3
6
EBU20361Operating the drive select lever and
driving in reverse NOTICEECB00170Before shifting, stop the ATV, otherwise the
transmission may be damaged.Shifting: Forward
1. Bring the ATV to a complete stop.
2. Shift from neutral to forward and vice versa by
moving the drive select lever along the shift
guide.TIPMake sure that the drive select lever is completely
shifted into position.
3. Open the throttle lever gradually.
Shifting: 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. Neutral “N”
2. Forward “F”
3. Reverse “R”
4. Drive select lever
1
2
3
4
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6-5
6
NOTICEECB00220If any engine trouble should occur during the
engine break-in period, immediately have a
Yamaha dealer check the ATV.EBU30020Parking When parking the ATV, apply the rear brake lever,
shift the drive select lever into the forward position,
stop the engine, apply the parking brake, and then
turn the fuel cock to “OFF”.
EBU20742Parking on a slope
WARNING
EWB00831Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an accident. If you must park on an
incline, place the ATV transversely across the
incline, shift the drive select lever to the for-
ward position, stop the engine, apply the park-
ing brake, and then block the front and rear
wheels with rocks or other objects.
Never park the ATV on hills that are too steep
to walk up easily.1. With the transmission in the forward position,
bring the ATV to a stop by applying the
brakes.
2. Stop the engine.
3. With the rear brake applied, apply the parking
brake.
1. Locked position
1
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8-7
8
14*Steering systemCheck operation and repair or replace if damaged.
Check toe-in and adjust if necessary.√√√√√
15 Engine oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√ √√√
16 Engine oil strainerClean.√√√
17 Transmission oilChange.
Check ATV for oil leakage, and correct if neces-
sary.√√
18*Moving parts and
cablesLubricate.√√√√
19*Throttle leverCheck operation.
Check throttle lever free play, and adjust if neces-
sary.
Lubricate cable and lever housing.√√√√√
20*Front and rear brake
switchesCheck operation and correct if necessary.√√√√√
21*Lights and switchesCheck operation and correct if necessary.
Adjust headlight beams.√√√√√
22*BatteryCheck electrolyte level and specific gravity, and
correct if necessary.
Make sure that the breather hose is properly rout-
ed.√√√√√ NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320U1PY60E0.book Page 7 Friday, March 11, 2011 9:30 AM

8-14
8 9. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
10. Turn the engine off, wait at least ten minutes,
and then check the oil level and correct it if
necessary.
EBU27026Transmission oil The transmission oil level should be checked be-
fore each ride. In addition, the transmission oil
must be changed at the intervals specified in the
periodic maintenance and lubrication chart.
To check the transmission oil level
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Wait a few minutes until the oil settles, and
then loosen the transmission oil check screw
located at the right side of the crankcase until
oil flows out.4. If no oil flows out, remove the transmission oil
filler bolt and its gasket.
1. Transmission oil check screw
2. Gasket
3. Correct oil level
4. Transmission oil
1 431
2
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