Maintenance Intervals - Yamaha YZ450FA 2011 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.
Item
ENGINE OIL
Replace
VALVES
Check the valve
clearances
Inspect
Replace
VALVE SPRINGS
Inspect
Replace
VALVE LIFTERS
Inspect
Replace
CAMSHAFTS
Inspect
Replace
CAMSHAFT SPROCK-
ETS
Inspect
Replace
Every Every
race third
After
(about (about
break-in
2.5 7.5
hours) hours)
●
● ●
3-1
MAINTENANCE INTERVALS
Every
fifth
As re-
(about
quired
12.5
hours)
●
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.
Inspect the decompres-
●
sion system.
●
Check for wear on the
●
teeth and for damage.
●
Remarks