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EC300000
REGULAR INSPECTION AND ADJUSTMENTS
EC310052
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.
PISTON
Inspect and clean
Replace
PISTON RING
Inspect
Replace
PISTON PIN, SMALL END BEARING
Inspect
Replace
3
CYLINDER HEAD
Inspect and clean
Retighten
CYLINDER
Inspect and clean
Replace
YPVS
Inspect and clean
CLUTCH
Inspect and adjust
Replace
TRANSMISSION
Replace oil
Inspect
Replace bearing
SHIFT FORK, SHIFT CAM, GUIDE BAR
Inspect
ROTOR NUT
Retighten
MUFFLER
Inspect
Clean
CRANK
Inspect and clean
CARBURETOR
Inspect, adjust and clean
SPARK PLUG
Inspect and clean
Replace
DRIVE CHAIN
Lubricate, slack, alignment
Replace
MAINTENANCE INTERVALS
After
Item
break-
Every
Every
Every
race
third
fifth
in
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
3-1
INSP
ADJ
As re-
Remarks
quired
Inspect crack
Remove carbon
G
Check ring end gap
G
G
Remove carbon
Check gasket
Inspect score marks
G
Inspect wear
Inspect housing, friction
plate, clutch plate and
G
spring
Yamalube 4 (10W-30) or
G
SAE 10W-30 SE motor oil
G
G
Inspect wear
G
G
Use chain lube
Chain slack: 40~50 mm
G
(1.6~2.0 in)
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