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EC300000
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.
Item
ENGINE OIL
Replace
OIL FILTER
Clean
VALVES
Check the valve clearances.
Inspect
Replace
VALVE SPRINGS
Inspect
Replace
VALVE LIFTERS
Inspect
Replace
CAMSHAFTS
Inspect
Replace
CAMSHAFT SPROCKETS
Inspect
Replace
PISTON
Inspect
Clean
Replace
PISTON RING
Inspect
Replace
PISTON PIN
Inspect
Replace
CYLINDER HEAD
Inspect and clean
CYLINDER
Inspect and clean
Replace
CLUTCH
Inspect and adjust
Replace
TRANSMISSION
Inspect
Replace bearing
MAINTENANCE INTERVALS
Every
After
Every
third
break-in
race
(or
500 km)
●
●
●
●
●
●
3 - 1
INSP
Every
As re-
fifth
(or
quired
1,000 km)
●
●
The engine must be cold.
Check the valve seats
●
and valve stems for wear.
●
Check the free length and
●
the tilt.
●
Check for scratches and
●
wear.
●
Inspect the camshaft sur-
●
face.
●
Check for wear on the
●
teeth and for damage.
●
●
●
Inspect crack
●
Remove carbon
●
●
Check ring end gap
●
●
●
●
Remove carbon
●
Change gasket
●
Inspect score marks
●
Inspect wear
Inspect housing, friction
plate, clutch plate and
●
spring
●
●
ADJ
Remarks
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