maintenance schedule YAMAHA YZ250F 2010 Owners Manual

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MAINTENANCE INTERVALS
REGULAR INSPECTION AND ADJUSTMENTS
MAINTENANCE INTERVALS
• The following schedule is intended as a general guide to mainten ance and lubrication. Bear in mind that such factors as
weather, terrain, geographical location, and individual usage will alter the required maintenance and lubrication intervals.
If you are a doubt as to what intervals to follow in mainta ining and lubricating your machine, consult your Yamaha dealer
• Periodic inspection is essential in making full use of the ma chine performance. The service life of the parts varies sub-
stantially according to the environment in which the machine runs (e.g., rain, dirt, etc.). Therefore, earlier inspection is
required by reference to the list below.
Item After
break- in Every
race
(about 2.5
hours)
Every third
(about
7.5
hours) Every
fifth
(about
12.5
hours)
As re-
quired Remarks
ENGINE OIL Replace ●●
Inspect ●●
OIL FILTER ELEMENT, OIL
STRAINER Clean ●
VALVES Check the valve clearances ●● The engine must be cold.
Inspect ●Check the valve seats and valve
stems for wear.
Replace ●
VALVE SPRINGS Inspect ●Check the free length and the tilt.
Replace ●
VALVE LIFTERS Inspect ●Check for scratches and wear.
Replace ●
CAMSHAFTS Inspect the camshaft surface.
Inspect ●Inspect the decompression system.
Replace ●
TIMING CHAIN SPROCKETS,
TIMING CHAIN Inspect ●Check for wear on the teeth and for
damage.
Replace ●
PISTON Inspect ●●Inspect crack.
Clean ●Inspect carbon deposits and eliminate
them.
Replace ●It is recommended that the piston pin
and ring are also replaced at the same
time.
PISTON RING Inspect ●Check ring end gap.
Replace ●●
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