Yamaha YZ125(D), Owner'S Service Manual

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3-1
MAINTENANCE INTERVALS
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 required 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 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
PISTON
Inspect and clean
● ●
Inspect crack.
Replace ● ● Inspect carbon deposits and
eliminate them.
PISTON RING
Inspect
● ●
Check ring end gap.
Replace
● ●
PISTON PIN, SMALL END
BEARING
Inspect
●
Replace ●
CYLINDER HEAD Inspect carbon deposits and
eliminate them.
Inspect and clean
● ●
Check gasket.
Retighten ● ●
CYLINDER
Inspect and clean ● ● Inspect score marks.
Replace
●
Inspect wear.
YPVS
Inspect and clean
● ●
Inspect carbon deposits and
eliminate them.
CLUTCH
Inspect and adjust
● ●
Inspect housing, friction plate,
clutch plate and spring.
Replace ●
TRANSMISSION
Replace oil ● ● Recommended brand: YAMA-
LUBE
SAE10W-40
API service SG type or higher
JASO standard MA
Inspect
●
Replace bearing
●
SHIFT FORK, SHIFT CAM,
GUIDE BAR
Inspect
●
Inspect wear.