Regular Inspection And Adjustments - Yamaha YZ250 Owner's Service Manual

REGULAR INSPECTION AND ADJUSTMENTS

MAINTENANCE INTERVALS
• The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind
that such factors as weather, terrain, geographical location, and individual usage will alter the re-
quired maintenance and lubrication intervals. If you are a doubt as to what intervals to follow in
maintaining and lubricating your machine, consult your Yamaha dealer.
• Periodic inspection is essential in making full use of the machine performance. The service life of
the parts varies substantially 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.
PISTON
Inspect and clean
Replace
PISTON RING
Inspect
Replace
PISTON PIN, SMALL END
BEARING
Inspect
Replace
CYLINDER HEAD
Inspect and clean
Retighten
CYLINDER
Inspect and clean
Replace
YPVS
Inspect and clean
CLUTCH
Inspect and adjust
Replace
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After
Item break
-in
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search engine
MAINTENANCE INTERVALS
Every Every Every
race third fifth
As re-
(about (about (about
quired
2.5 7.5 12.5
hours) hours) hours)
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3-1
Remarks
Inspect crack.
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Inspect carbon deposits and
eliminate them.
Check ring end gap.
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Inspect carbon deposits and
eliminate them.
Check gasket.
Inspect score marks.
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Inspect wear.
Inspect carbon deposits and
eliminate them.
Inspect housing, friction plate,
clutch plate and spring.
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