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MAINTENANCE INTERVALS
3-2
11
* Cylinder head
•
Check the coolant passages for
corrosion.
•
Inspect carbon deposits and elim-
inate them.
•
Check for warpage, and replace
the gasket.
12
* Cylinder
•
Inspect score marks.
•
Inspect wear.
13
Engine oil
•
Check the engine oil amount.
•
Replace.
14
Oil filter element
•
Replace.
15
* Oil strainer
•
Clean.
16
* Clutch
•
Inspect housing, friction plate,
clutch plate and spring.
•
Replace.
17
* Transmission
•
Inspect.
•
Replace bearings.
18
* Shift fork, shift cam,
guide bar
•
Inspect wear.
19
* Nut (generator rotor)
•
Check for tightening torques.
20
* Exhaust pipe,
silencer, protector
•
Check for exhaust leaks, and
tightening torques.
•
Clean.
•
Replace fiver.
(When the exhaust sound
becomes louder or when a perfor-
mance drop is felt.)
21
* Crankshaft
•
Inspect and clean.
22
* Throttle body
•
Inspect.
23
Air filter
•
Clean and lubricate.
•
Replace.
24
Spark plug
•
Check the electrodes and the ter-
minals for wear.
•
Replace.
25
* Cooling system
•
Check coolant level and leakage.
•
Check radiator cap operation.
•
Check radiator cap attached.
•
Change the coolant.
Every two years
•
Inspect hoses.
26
* Engine guard
•
Replace.
27
* Frame
•
Clean and inspect.
28
* Fuel tank, fuel pump
•
Inspect.
29
* Fuel hose
•
Inspect.
•
Replace.
Every four years
No.
Item
Routine
After
break-in
Every
race
(about 2.5
hours)
Every
third race
(about 7.5
hours)
Every
fifth race
(about 12.5
hours)
As
required
Summary of Contents for YZ450FX 2023
Page 8: ......
Page 10: ...MOTORCYCLE CARE AND STORAGE 1 20 CARE 1 20 STORAGE 1 21 ...
Page 15: ...LOCATION OF IMPORTANT LABELS 1 5 ...
Page 16: ...LOCATION OF IMPORTANT LABELS 1 6 AUS NZL ZAF 4AA 22259 40 ...
Page 80: ...ELECTRICAL SYSTEM 3 32 ...
Page 96: ...HANDLEBAR 4 14 Throttle grip free play 3 0 6 0 mm 0 12 0 24 in ...
Page 116: ...CHAIN DRIVE 4 34 ...
Page 124: ...CLUTCH 5 7 ...
Page 128: ...FUEL TANK 6 3 ...
Page 148: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 8 13 ...
Page 158: ...CHASSIS 9 9 ...
Page 160: ...PRINTED IN JAPAN E ...