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Yamaha YZ450F(D) Owner's Service Manual page 58

2013

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Item
CYLINDER HEAD
Inspect and clean
CYLINDER
Inspect and clean
Replace
CLUTCH
Inspect and adjust
Replace
TRANSMISSION
Inspect
Replace bearing
SHIFT FORK, SHIFT CAM,
GUIDE BAR
Inspect
ROTOR NUT
Retighten
EXHAUST PIPE, SILENCER,
PROTECTOR
Inspect and retighten
Clean
Replace fiver
CRANK
Inspect and clean
THROTTLE BODY
Inspect
SPARK PLUG
Inspect and clean
Replace
DRIVE CHAIN
Lubricate, slack, alignment
Replace
COOLING SYSTEM
Check coolant level and leakage
Check radiator cap operation
Replace coolant
Inspect hoses
OUTSIDE NUTS AND BOLTS
Retighten
Every
Every
third
After
race
(about
break-
(about
in
2.5
7.5
hours)
hours)
3-2
MAINTENANCE INTERVALS
Every
fifth
As re-
(about
quired
12.5
hours)
Inspect carbon deposits and eliminate
them.
Change gasket.
Inspect score marks.
Inspect wear.
Inspect housing, friction plate, clutch
plate and spring.
Inspect wear.
● *
* When the exhaust sound becomes
louder or when a performance drop is
felt.
Use chain lube.
Chain slack: 50–60 mm (2.0–2.4 in)
Every two years
Refer to "STARTING AND BREAK-
IN" section in the CHAPTER 1.
Remarks

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