2004 YAMAHA GRIZZLY 125 clearance

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
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6-19
EBU02091
Engine break-in
There is never a more important period in the
life of your machine than the period between
zero and 20 hours.
For this reason, we ask that you carefully read
the following material. Because the engine is
brand new, you must not put an excessive load
on it for the first several hours of running. During
the first 20 hours, the various parts in the engine
wear and polish themselves to the correct oper-
ating clearances.
During this period, prolonged full throttle opera-
tion or any condition which might result in exces-
sive engine heating must be avoided. However,
momentary (2–3 seconds maximum) full throttle
operation under load does not harm the engine.
1C5-9-60-06 11/12/03 7:25 PM Page 20

8-7
EBU00262
PERIODIC MAINTENANCE/LUBRICATION
INITIAL EVERY
ITEM ROUTINE
13661
monthmonths months monthsyear
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.
1111
• 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
Oil strainer*• Clean.
111
• Replace if necessary.
Drive chain• Check and adjust slack/alignment/clean/lube.11111
Final transmission oil• Check oil level/oil leakage.
11
• Replace every 12 months.
1C5-9-60-08 9/12/03 8:38 PM Page 8-8

8-45
EBU00303
Valve clearance adjustment
The correct valve clearance changes with use,
resulting in improper fuel/air supply or engine
noise. To prevent this, the valve clearance must
be adjusted regularly. This adjustment however,
should be left to a professional Yamaha service
technician.
EAU00307
Throttle lever adjustment
NOTE:
Adjust the engine idling speed before adjusting
the throttle lever free play.
1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle lever
free play is 3–5 mm.
3. Tighten the locknut.a q
w
1. Locknut 2. Adjusting bolt a.Free play1. Contre-écrou 2.Dispositif de réglagea. Jeu 1. Contratuerca 2.Tornillo de ajustea. Juego
1C5-9-60-08 9/12/03 8:38 PM Page 8-46

10-1
SPECIFICATIONS
Model YFM125
Dimensions:
Overall length 1,710 mm
Overall width 990 mm
Overall height 980 mm
Seat height 705 mm
Wheelbase 1,080 mm
Ground clearance 145 mm
Minimum turning radius 2,900 mm
Basic weight:
With oil and full fuel tank 152 kg
Noise and vibration level:
Noise level (77/311/EEC) (for Europe) 75.1db (A)
Vibration on seat (EN1032, ISO5008) (for Europe)Will not exceed 0.6 m/s
2
Vibration on handlebar (EN1032, ISO5008) (for Europe)Will not exceed 2.5 m/s2
Engine:
Engine type Air-cooled, 4-stroke, SOHC
Cylinder arrangement Singlel cylinder, Forward-inclined
Displacement 124 cm
3
Bore × stroke 49 ×66 mm
Compression ratio 9.0 : 1
Starting system Electric starter
Lubrication system Wet sump
EBU00428
1C5-9-60-09~11 15/12/03 7:59 PM Page 12