Yamaha YZ450F(S), Owner'S Service Manual

Page: 143 / 642

3 - 2
INSP
ADJ
MAINTENANCE INTERVALS
SHIFT FORK, SHIFT CAM, GUIDE BAR
Inspect
●
Inspect wear
ROTOR NUT
Retighten
● ●
MUFFLER
Inspect and retighten
Clean
Replace
● ●
●
●
* Whichever comes first
CRANK
Inspect and clean
● ●
CARBURETOR
Inspect, adjust and clean
● ●
SPARK PLUG
Inspect and clean
Replace
● ●
●
DRIVE CHAIN
Lubricate, slack, alignment
Replace
● ●
●
Use chain lube
Chain slack: 40 ~ 50 mm
(1.6 ~ 2.0 in)
COOLING SYSTEM
Check coolant level and leakage
Check radiator cap operation
Replace coolant
Inspect hoses
● ●
●
●
●
Every two years
OUTSIDE NUTS AND BOLTS
Retighten
● ●
Refer to “STARTING
AND BREAK-IN” section
in the CHAPTER 1.
AIR FILTER
Clean and lubricate
Replace
● ●
●
Use foam air-filter oil or
equivalent oil
OIL FILTER
Replace
● ●
OIL STRAINER (frame)
Clean
●
FRAME
Clean and inspect
● ●
FUEL TANK, COCK
Clean and inspect
● ●
BRAKES
Adjust lever position and pedal height
Lubricate pivot point
Check brake disc surface
Check fluid level and leakage
Retighten brake disc bolts, caliper
bolts, master cylinder bolts and union
bolts
Replace pads
Replace brake fluid
●
●
●
●
●
●
●
●
●
●
●
●
Every one year
FRONT FORKS
Inspect and adjust
Replace oil
Replace oil seal
●
●
●
●
●
Suspension oil “01”
Item
After
break-in
Every
race
Every
third
(or
500 km)
Every
fifth
(or
1,000 km)
As re-
quired
Remarks
3