Maintenance Intervals - Yamaha YTZ250S 1986 Service Manual

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MAINTENANCE INTERVALS CHART
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 in doubt as to what intervals to
follow in maintaining and lubricating your machine, consult your Yamaha dealer.
WARNING:
Be sure to turn off the engine when you perform maintenance unless otherwise specified.
After
Every
Every 30
Every Asre-
Item break- operati-
Remarks
in
race
on days
year quired
PISTON
Inspect crack
Inspect and clean
• •
Replace
•
Remove carbon
PISTON RINGS
Inspect
•
•
Check ring end gap
Replace
•
PISTON PIN, SMALL END BEARING
Inspect
• •
Replace
•
CYLINDER HEAD
Inspect and clean
•
•
Remove carbon
Retighten
•
•
CYLINDER
seizure
Inspect and clean
•
Replace
•
wear
Y.E.I.S.
Inspect
•
•
AIR FILTER
Use Foam
Clean and oil
• • •
air-filter oil
Replace
•
CLUTCH
Inspect friction plate,
Inspect and adjust
• • •
clutch plate and spring
Replace
•
TRANSMISSION
Yamalube 4-cycle oil or
Replace oil
•
•
Inspect transmission
•
SAE 10W30 SE motor oil
SHIFT CAM, FORK
Inspect wear
Inspect
•
ROTOR NUT
Retighten
•
MUFFLER (Spark Arrester)
Inspect
•
Oean
•
CRANK
Inspect and clean
•
CARBURETOR
Inspect, adjust and clean
•
•
SPARK PLUG
Inspect and clean
• • •
STD plug: B8ES
Replace
•
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