check engine YAMAHA GRIZZLY 125 2005 Owners Manual

LOCATION OF THE WARNING AND
SPECIFICATION LABELS .......................1-1
SAFETY INFORMATION .........................2-1
DESCRIPTION AND MACHINE
IDENTIFICATION.....................................3-1
Identification number records ...............3-3
Key identification number .....................3-5
Vehicle identification number ...............3-5
Model label ...........................................3-7
CONTROL FUNCTIONS..........................4-1
Main switch ...........................................4-1
Indicator lights ......................................4-3
Handlebar switches ..............................4-5Throttle lever ......................................4-11
Speed limiter ......................................4-13
Front brake lever ................................4-15
Rear brake lever .................................4-15
Parking brake .....................................4-17
Drive select lever ................................4-19
Fuel tank cap ......................................4-19
Fuel cock ............................................4-21
Starter (choke) ....................................4-23
Seat ....................................................4-25
Front carrier ........................................4-27
Rear carrier ........................................4-27
PRE-OPERATION CHECKS ...................5-1
Front and rear brakes ...........................5-5
Fuel ......................................................5-7
Engine and final transmission oil ........5-11
EBU00015
CONTENTS
1
2
3
4
5
1C5-9-61-01 9/4/04 8:48 PM Page 12

PERIODIC MAINTENANCE AND
ADJUSTMENT .........................................8-1
Owner’s manual and tool kit .................8-3
Periodic maintenance/Lubrication ........8-7
Engine oil ............................................8-13
Final transmission oil ..........................8-21
Spark plug inspection .........................8-27
Engine air filter element and V-belt
case air filter element cleaning .........8-31
Idle speed adjustment ........................8-43
Valve clearance adjustment ...............8-45
Throttle lever adjustment ....................8-45
Front and rear brake shoe
inspection .........................................8-47
Front brake lever free play
adjustment ........................................8-49
Rear brake adjustment .......................8-59
Drive chain slack check ......................8-61
Drive chain slack adjustment ..............8-63Lubricating and drive chain ................8-67
Draining the V-belt compartment ........8-69
Cable inspection and lubrication ........8-71
Brake lever lubrication ........................8-73
Knuckle shaft, lower arms and
steering shaft lubrication ..................8-73
Wheel removal ...................................8-75
Wheel installation ...............................8-75
Battery ................................................8-77
Replenishing a battery fluid ................8-81
Fuse replacement ...............................8-85
Replacing the headlight bulb ..............8-87
Tail/brake light bulb replacement .......8-91
Headlight beam adjustment ................8-93
Troubleshooting ..................................8-95
Troubleshooting chart .........................8-998
1C5-9-61-01 9/4/04 8:48 PM Page 14

4-11
EBU00063
Throttle lever
Once the engine is running, movement of the
throttle lever will increase the engine speed.
Regulate the speed of the machine by varying
the throttle position. Because the throttle is
spring-loaded, the machine will decelerate, and
the engine will return to an idle any time the
hand is removed from the 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.
w
Malfunction of the throttle could make it diffi-
cult 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.
q
1. Throttle lever1. Levier d’accélérateur1. Palanca del aceleración
1C5-9-61-04 22/3/04 3:08 PM Page 12

5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brakes• Check operation, condition and free play. 5-5 – 5-7,
• Adjust if necessary. 8-47 – 8-59
Fuel • Check fuel level.
• Fill with fuel if necessary.5-7 – 5-11
Engine oil and• Check oil level. 5-11 – 5-15,
final transmission oil• Fill with oil if necessary. 8-13 – 8-25
Drive chain• Check chain slack and condition.
5-15, 8-61 – 8-69
• Adjust if necessary.
Throttle• Check for proper throttle cable operation. 5-15
Wheels and tires• Check tire pressure, wear and damage. 5-19 – 5-25, 8-75
Fittings and fasteners• Check all fittings and fasteners. 5-15
Battery• Check fluid level.
5-17, 8-77 – 8-83
• Fill with distilled water if necessary.
Lights and switches• Check for proper operation. 5-17, 8-87 – 8-93
1C5-9-61-05 22/3/04 5:39 PM Page 2

6-11
EBU00180
Starting a warm engine
To start a warm engine, refer to the “Starting a
cold engine” section. The starter (choke) should
not be used. The throttle should be opened
slightly.
EBU00182
Warming up
To get maximum engine life, always warm up
the engine before starting off. Never accelerate
hard with a cold engine! To see whether or not
the engine is warm, check if it responds to the
throttle normally with the starter (choke) turned
off.
1C5-9-61-06 9/4/04 8:15 PM Page 12

8-7
EBU02621
PERIODIC MAINTENANCE/LUBRICATION
NOTE:8For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
8For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance intervals. However, keep in mind
that if the ATV isn’t used for a long period of time, the month maintenance intervals should be followed.
INITIAL EVERY
month 1 3 6 6 12
ITEM ROUTINEWhichever
km 320 1200 2400 2400 4800 comes first
(mi) (200) (750) (1500) (1500) (3000)
hours 20 75 150 150 300
Valves*• Check valve clearance.
1111
• Adjust if necessary.
• Check condition.
Spark plug• Adjust gap and clean.11111
• Replace if necessary.
Air filter element
• Clean. Every 20–40 hours
(for engine and V-belt
• Replace if necessary. (more often in wet or dusty areas)
case)
Carburetor*• Check idle speed/starter operation.
111 1
• Adjust if necessary.
Cylinder head cover• Check breather hose for cracks or damage.
111
breather system*• Replace if necessary.
• Check leakage.
Exhaust system*• Retighten if necessary.111
• Replace gasket if necessary.
Fuel line*• Check fuel hose for cracks or damage.
111
• Replace if necessary.
Engine oil• Replace (warm engine before draining).1111
1C5-9-61-08 9/4/04 9:30 AM Page 8-8

8-13
EBU14900
Engine oil
The engine oil level should be checked before
each ride. In addition, the oil must be changed
at the intervals specified in the periodic mainte-
nance and lubrication chart.
Engine oil level measurement
1. Place the machine on a level surface.
2. Warm up the engine for several minutes and
stop it.
3. Wait a few minutes until the oil level settles,
remove the oil filler cap, wipe off the dipstick
clean. Insert the dipstick in the filler hole
without screwing it in.
NOTE:
Wait a few minutes until the oil level settles
before checking.
4. Remove the dipstick and inspect the oil
level.
5. The oil level should be between the maxi-
mum and minimum marks. If the level is low,
add oil to raise it to the proper level.
qw
e
1. Dipstick
2. Maximum level mark 3. Minimum level mark
1. Jauge
2. Repère de niveau maximum 3. Repère de niveau minimum
1. Varilla de medición
2. Marca de máximo 3. Marca de mínimo
1C5-9-61-08 9/4/04 9:30 AM Page 8-14

8-19
cC
Be sure no foreign material enters the
crankcase.
9. Warm up the engine for several minutes at
idle speed. Check for oil leakage while
warming up.
cC
If oil leakage is found, stop the engine imme-
diately and check for the cause.
Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change
1.25 L
1C5-9-61-08 9/4/04 9:30 AM Page 8-20

8-31
EBU14840
Engine air filter element and V-belt case air
filter element cleaning
Both air filter elements should be cleaned at the
specified intervals in the periodic maintenance
chart.
Engine air filter element
NOTE:
There is a check hose at the bottom of the air fil-
ter case. If dust or water collects in this hose,
empty the hose and clean the air filter element
and air filter case.
1. Remove the seat.
2. Remove the breather hose, and then loosen
the clamp screw.
3. Remove the air filter case cover by remov-
ing the screws.
q
1
3
4
5
2
2
2
2
1. Check hose1. Flexible de contrôle1. Manguito de comprobación
1. Air filter case cover 2. Screw (
× 4)
3. Breather hose 4. Clamp 5. Clamp screw
1. Cache du boîtier de filtre à air 2.Vis (× 4)
2. Reniflard 3. Bride 5. Vis de coiler
1.Tapa de la caja del filtro de aire2. Tornillo (× 4)
3. Tubo de ventilación 4. Abrazadera 5. Tornillo de sujeción
1C5-9-61-08 9/4/04 9:30 AM Page 8-32

8-37
NOTE:
The air filter element should be cleaned every
20-40 hours. It should be cleaned and lubricated
more often if the machine is operated in
extremely dusty areas. Each time air filter ele-
ment maintenance is performed, check the air
inlet to the air filter case for obstructions. Check
the air filter case rubber joint to the carburetor
and manifold fittings for an airtight seal. Tighten
all fittings securely to avoid the possibility of
unfiltered air entering the engine.
cC
Never operate the engine with the air filter
element removed. This will allow unfiltered
air to enter, causing rapid engine wear and
possible engine damage. Additionally, opera-
tion without the air filter element will affect
carburetor jetting with subsequent poor per-
formance and possible engine overheating.
1C5-9-61-08 9/4/04 9:30 AM Page 8-38